/* Google Fonts 已移除，使用系统原生字体栈（国内加载更快，GEO爬虫更稳定） */
/* ===================================================================
   提档版 v4 · 国际 SaaS 白净风
   语言：大面积白 + 成熟中性灰阶 + 一个克制的靛蓝品牌色；
   无衬线、大留白、细边框、极淡阴影，靠排版细节与微交互取胜。
   仅调整设计令牌与组件观感，页面结构不变，可整体回退。
   =================================================================== */
:root {
  /* 对齐 frontend/Aixcont：Brand Blue + Slate */
  --color-bg: #ffffff;
  --color-bg-elevated: #ffffff;
  --color-bg-muted: #f8fafc;
  --color-bg-warm: #f1f5f9;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-muted: #64748b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-soft: rgba(37, 99, 235, 0.06);
  --color-accent: #2563eb;
  --color-accent-dark: #1d4ed8;
  --color-accent-soft: rgba(37, 99, 235, 0.08);
  --color-accent-soft-2: rgba(37, 99, 235, 0.12);
  --gradient-primary: linear-gradient(90deg, #4f8ef7 0%, #2563eb 100%);
  --gradient-primary-hover: linear-gradient(90deg, #2563eb 0%, #1d4ed8 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 4px 24px -4px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow: 0 8px 32px -8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 14px 36px -20px rgba(37, 99, 235, 0.22);
  --shadow-glow: 0 4px 16px -4px rgba(37, 99, 235, 0.35);
  --max-width: 1200px;
  --font: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  /* 白净 SaaS 全站无衬线：serif 令牌回退到主字体，标题靠字重与字距区分层级 */
  --font-serif: var(--font);
  --transition: 0.2s ease;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --hero-dark: #0f172a;
  --hero-dark-rgb: 15, 23, 42;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

@media (max-width: 900px) {
  body.has-mobile-bar {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom, 0px));
  }
}

body.lightbox-open .mobile-action-bar {
  display: none !important;
}

img { max-width: 100%; height: auto; display: block; }

/* ── Media / Screenshots ── */
.media-figure {
  margin: 2rem 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: 0 4px 16px -8px rgba(0,0,0,0.04);
  transition: box-shadow 0.3s ease, transform 0.3s var(--ease-out-quart);
}

.media-figure:hover {
  box-shadow: 0 8px 28px -12px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.media-figure img { width: 100%; }

.media-figure figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.screenshot-gallery--2 { grid-template-columns: repeat(2, 1fr); }

.screenshot-gallery--phones {
  justify-items: center;
}

.screenshot-item--phone {
  max-width: 260px;
  width: 100%;
}

.screenshot-gallery--phones .screenshot-item--phone img {
  object-fit: contain;
  background: #f5f5f5;
}

.screenshot-item {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-sm);
}

.screenshot-item img { width: 100%; }

.screenshot-item figcaption {
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border-light);
  line-height: 1.5;
}

.card--media {
  padding: 0;
  overflow: hidden;
}

.card--media .card-thumb {
  aspect-ratio: 16 / 10;
  background: var(--color-bg-muted);
  overflow: hidden;
}

.card--media .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card--media .card-inner {
  padding: 1.25rem 1.625rem 1.5rem;
}

.card--media .tag { margin-bottom: 0.5rem; }

.screenshot-item img,
.media-figure img {
  cursor: zoom-in;
  transition: opacity var(--transition);
}

.screenshot-item:hover img,
.media-figure:hover img { opacity: 0.92; }

.screenshot-item::after,
.media-figure::after {
  content: "点击放大";
  position: absolute;
  right: 0.75rem;
  bottom: 2.75rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.6875rem;
  color: #fff;
  background: rgba(31, 30, 29, 0.55);
  border-radius: var(--radius-full);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.screenshot-item,
.media-figure { position: relative; }

.screenshot-item:hover::after,
.media-figure:hover::after { opacity: 1; }

.media-figure::after { bottom: 2.5rem; }

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(20, 20, 19, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.lightbox[hidden] { display: none; }

.lightbox__figure {
  margin: 0;
  max-width: min(96vw, 1400px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: calc(92vh - 3rem);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  background: var(--color-bg-elevated);
}

.lightbox__caption {
  margin: 0.75rem 0 0;
  max-width: 48rem;
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
}

.lightbox__close,
.lightbox__nav {
  position: fixed;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  transition: background var(--transition);
  font-family: var(--font);
}

.lightbox__close:hover,
.lightbox__nav:hover { background: rgba(255, 255, 255, 0.22); }

.lightbox__close {
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  font-size: 1.5rem;
  line-height: 1;
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-full);
  font-size: 1.75rem;
  line-height: 1;
}

.lightbox__nav--prev { left: 1rem; }

.lightbox__nav--next { right: 1rem; }

.lightbox__nav[hidden],
.lightbox__close[hidden] { display: none; }

body.lightbox-open { overflow: hidden; }

@media (max-width: 768px) {
  .screenshot-gallery--2,
  .screenshot-gallery--3 { grid-template-columns: 1fr; }

  .screenshot-item::after,
  .media-figure::after { opacity: 1; }

  .lightbox { padding: 0.75rem; }

  .lightbox__nav { width: 2.25rem; height: 2.25rem; font-size: 1.5rem; }

  .lightbox__nav--prev { left: 0.5rem; }

  .lightbox__nav--next { right: 0.5rem; }
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-primary-dark); }

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(15, 23, 41, 0.06);
  overflow: visible;
  box-shadow: 0 1px 0 rgba(15, 23, 41, 0.03);
  transition: background 0.35s var(--ease-out-quart), border-color 0.35s var(--ease-out-quart), box-shadow 0.35s var(--ease-out-quart);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--color-border-light);
  box-shadow: none;
}

.site-nav a {
  position: relative;
}

.site-nav > ul > li > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  bottom: 0.2rem;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transform: translateX(-50%);
  transition: width 0.3s var(--ease-out-quart);
}

.site-nav > ul > li > a:not(.nav-cta):hover::after {
  width: calc(100% - 1.5rem);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover { color: var(--color-text); }

.logo-icon {
  display: block;
  width: auto;
  height: 40px;
  flex-shrink: 0;
  object-fit: contain;
}

.logo-text {
  /* 字标图已含品牌名，隐藏旁侧文字避免重复 */
  display: none;
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1;
  color: #000;
}

.logo-accent { color: #000; }

.site-nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav ul { list-style: none; margin: 0; padding: 0; }

.site-nav a {
  display: block;
  padding: 0.45rem 0.75rem;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-text);
  background: transparent;
}

.nav-cta {
  background: var(--color-primary) !important;
  color: #fff !important;
  border-radius: var(--radius) !important;
  padding: 0.5rem 1.15rem !important;
  font-weight: 600 !important;
  letter-spacing: 0;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  color: #fff !important;
}

/* ── Mega menu（品拓式全宽悬停面板）── */
.has-sub { position: static; }

.has-sub:hover,
.has-sub:focus-within,
.has-sub.is-mega-open { z-index: 30; }

/* 打开 mega 时取消顶栏底部分割线，与面板连成一体 */
.site-header.mega-open,
.site-header:has(.has-sub.is-mega-open),
.site-header:has(.has-sub:hover),
.site-header:has(.has-sub:focus-within) {
  border-bottom-color: transparent;
  box-shadow: none;
}

.site-nav .sub-menu,
.site-nav .mega-panel {
  --mega-intro-w: 480px;
  --mega-panel-h: 360px;
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  width: 100%;
  max-width: none;
  min-width: 0;
  max-height: min(82vh, 640px);
  overflow-x: hidden;
  overflow-y: auto;
  margin: 0;
  padding: 0;
  z-index: 40;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  background-color: #fff;
  background-image: none;
  border: none;
  border-top: none;
  border-radius: 0;
  box-shadow: 0 22px 44px -18px rgba(15, 23, 42, 0.18);
}

/* 向上延伸的透明桥：盖住顶栏与面板之间的空隙 */
.site-nav .mega-panel::before {
  content: "";
  position: absolute;
  top: -40px;
  left: 0;
  right: 0;
  height: 40px;
  background: transparent;
}

/*
  背景条：从页面最左侧铺到「左侧介绍栏」右边缘
  = 容器左侧外边距 + 介绍栏宽度（不是只铺在栏内）
*/
.site-nav .mega-panel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 0;
  height: auto;
  width: calc((100% - min(100% - 2.5rem, var(--max-width))) / 2 + var(--mega-intro-w));
  pointer-events: none;
  background-color: #fff;
  background-image:
    linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.4) 0%,
      rgba(255, 255, 255, 0.55) 35%,
      rgba(255, 255, 255, 0.88) 68%,
      #ffffff 88%,
      #ffffff 100%
    ),
    url("../images/site/mega-bg.png");
  background-repeat: no-repeat;
  background-position: 0 0, left center;
  background-size: 100% 100%, cover;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%);
}

.has-sub:hover > .mega-panel,
.has-sub:focus-within > .mega-panel,
.has-sub.open > .mega-panel,
.has-sub.is-mega-open > .mega-panel {
  display: flex;
}

/* 有下拉时的箭头 */
.has-sub > a {
  display: inline-flex !important;
  align-items: center;
  gap: 0.35rem;
}

.nav-caret {
  display: inline-block;
  width: 0.4rem;
  height: 0.4rem;
  margin-top: -0.15rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  opacity: 0.75;
}

.has-sub:hover > a .nav-caret,
.has-sub:focus-within > a .nav-caret,
.has-sub.is-mega-open > a .nav-caret,
.has-sub.open > a .nav-caret {
  transform: rotate(225deg);
  margin-top: 0.15rem;
  opacity: 1;
}

.mega-panel-inner {
  display: grid;
  grid-template-columns: var(--mega-intro-w, 480px) minmax(0, 1fr);
  grid-template-rows: minmax(240px, 1fr) auto;
  gap: 0 4rem;
  padding: 0;
  align-items: stretch;
  height: auto;
  min-height: var(--mega-panel-h, 300px);
  position: relative;
  z-index: 1;
}

.mega-intro {
  position: relative;
  max-width: none;
  width: 100%;
  height: 100%;
  min-height: 0;
  margin: 0;
  padding: 1.75rem 2.5rem 1.25rem 5.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  box-sizing: border-box;
  grid-column: 1;
  grid-row: 1;
  /* 背景改由 .mega-panel::after 从页左铺到本栏右缘 */
  background: transparent;
}

.mega-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  gap: 1.75rem 2.75rem;
  align-content: start;
  padding: 1.75rem 0 1.25rem;
  box-sizing: border-box;
  grid-column: 2;
  grid-row: 1;
}

/* 解决方案 · 行业列（品拓式） */
.mega-cols.mega-cols--industries {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.35rem 1.5rem;
  padding-right: 1.25rem;
}

.mega-col .mega-item {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  padding: 0.4rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  line-height: 1.45;
}

.mega-col .mega-item.is-disabled {
  color: #94a3b8;
  cursor: default;
  user-select: none;
}

.mega-intro-title {
  margin: 0 0 0.65rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.mega-intro-desc {
  margin: 0 0 1.15rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.mega-intro-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  padding: 0 !important;
  background: none !important;
  border-radius: 0 !important;
}

.mega-intro-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.mega-col-title {
  margin: 0 0 0.85rem;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  color: #2563eb;
  pointer-events: none;
}

/* 新闻资讯等：仅展示可点击类别名 */
.mega-col a.mega-col-link {
  margin: 0;
  padding: 0.15rem 0 !important;
  font-size: 0.9375rem !important;
  font-weight: 700;
  letter-spacing: 0;
  color: #2563eb !important;
  box-shadow: none;
}

.mega-col a.mega-col-link:hover,
.mega-col a.mega-col-link:focus-visible {
  color: var(--color-primary-dark) !important;
  box-shadow: inset 0 -1px 0 currentColor;
}

.mega-col-desc {
  margin: -0.35rem 0 0.75rem;
  font-size: 0.78rem;
  line-height: 1.55;
  color: #94a3b8;
}

.mega-col a.mega-col-link + .mega-col-desc {
  margin: 0.35rem 0 0;
}

.mega-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.mega-col a {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  padding: 0.4rem 0 !important;
  border-radius: 0 !important;
  border-bottom: none !important;
  font-size: 0.9rem !important;
  font-weight: 600;
  color: var(--color-text-secondary) !important;
  white-space: normal;
  line-height: 1.45;
  background: transparent !important;
  text-decoration: none;
  box-shadow: inset 0 -1px 0 transparent;
  transition: color 0.15s ease, box-shadow 0.15s ease;
}

.mega-col a:hover,
.mega-col a:focus-visible {
  color: var(--color-primary) !important;
  background: transparent !important;
  box-shadow: inset 0 -1px 0 currentColor;
  text-decoration: none;
}

.mega-panel-foot {
  grid-column: 1 / -1;
  grid-row: 2;
  border-top: 1px solid rgba(226, 232, 240, 0.9);
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: 0.85rem 0 1.1rem;
  margin: 0;
  position: relative;
  z-index: 1;
}

.mega-panel-foot-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  /* 与左侧文案起点对齐 */
  padding-left: 5.5rem;
}

.mega-panel-foot-inner a {
  font-weight: 700;
  color: var(--color-primary) !important;
  padding: 0 !important;
  background: none !important;
  border-radius: 0 !important;
}

.mega-panel-foot-inner a:hover {
  text-decoration: underline;
}

/* 兼容旧 class（若个别页未改完） */
.sub-menu-heading {
  font-size: 0.7rem;
  font-weight: 600;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.75rem 0.15rem;
  pointer-events: none;
}
.sub-menu-dimmed {
  display: block;
  padding: 0.35rem 0.75rem;
  color: #bbb;
  font-size: 0.8rem;
}
.sub-menu-divider {
  border-top: 1px solid #eee;
  margin: 0.2rem 0.75rem;
}


.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.625rem;
  margin: -0.625rem -0.5rem -0.625rem 0;
  min-width: 44px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Back to top ── */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
  z-index: 95;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.96);
  color: var(--color-primary);
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background 0.2s ease, box-shadow 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #fff;
  box-shadow: var(--shadow-lg);
  color: var(--color-primary-dark);
}

.back-to-top svg {
  display: block;
}

body.has-mobile-bar .back-to-top {
  bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .back-to-top {
    transition: opacity 0.15s ease, visibility 0.15s ease;
  }
}

/* ── Hero ── */
.hero {
  padding: 5.5rem 0 6rem;
  background: #ffffff;
  border-bottom: none;
}

.page-home .hero {
  padding: 5rem 0 4rem;
}

.hero-inner--wide {
  text-align: center;
  max-width: 52rem;
  margin-inline: auto;
}

.hero-inner--wide .hero-content {
  max-width: none;
}

.hero-inner--wide .hero-lead {
  margin-inline: auto;
  max-width: 38rem;
}

.hero-inner--wide .hero-actions {
  justify-content: center;
}

.hero-trust {
  margin: 0 0 1.25rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border-light);
}

.hero-stat {
  text-align: center;
  min-width: 7rem;
}

.hero-stat strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.hero-stat span {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.hero--split .hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  text-align: left;
}

.hero-inner--center {
  text-align: center;
  max-width: 40rem;
  margin-inline: auto;
}

.hero-inner--center .hero-content {
  max-width: none;
  margin-inline: auto;
}

.hero-inner--center .hero-lead {
  margin-inline: auto;
}

.hero-inner--center .hero-actions {
  justify-content: center;
}

.hero-content { max-width: 34rem; }

.hero-badge {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  border-radius: var(--radius-full);
}

.hero h1 {
  font-family: var(--font);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.0625rem;
  color: var(--color-muted);
  margin: 0 0 1.5rem;
  line-height: 1.8;
}

.hero-lead strong {
  color: var(--color-text-secondary);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.hero-panel--cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-panel-intro {
  margin: 0 0 0.25rem;
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.hero-panel--cards .hero-panel-card {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem 1.125rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.hero-panel--cards .hero-panel-tag {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
}

.hero-panel--cards .hero-panel-card strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

.hero-panel--cards .hero-panel-card p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.45;
}

.hero-panel { display: block; }

.hero-panel-image {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  background: var(--color-bg-elevated);
}

.hero-panel-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.hero-panel-cards {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.hero-panel-card {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.hero-panel-card:hover {
  border-color: rgba(37, 81, 214, 0.22);
  box-shadow: var(--shadow);
}

.hero-panel-tag {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
}

.hero-panel-card strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 0.15rem;
}

.hero-panel-card p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.45;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay { transition-delay: 0.1s; }

.reveal-delay-2 { transition-delay: 0.2s; }

.page-home .hero .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 81, 214, 0.28);
}

.page-home .hero .reveal {
  opacity: 1;
  transform: translateY(0);
}

.hero-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
  max-width: 52rem;
}

.hero-pillar-preview {
  padding: 1.5rem 1.25rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: left;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.hero-pillar-preview:hover {
  border-color: rgba(37, 81, 214, 0.22);
  box-shadow: var(--shadow-sm);
}

.preview-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.hero-pillar-preview strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.hero-pillar-preview > span:last-child {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.55;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08), 0 2px 8px rgba(37, 81, 214, 0.18);
  transition: all 0.2s var(--ease-out-quart);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 81, 214, 0.28);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--color-border);
  color: var(--color-text);
  background: #fff;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

/* ── Sections ── */
.section { padding: 6rem 0; }

.section-alt {
  background: var(--color-bg-muted);
  border-top: none;
  border-bottom: none;
}

.section-header {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 2.5rem;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.section-header h2 {
  font-family: var(--font);
  font-size: clamp(1.75rem, 3.5vw, 2.375rem);
  margin: 0 0 0.75rem;
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-header p {
  color: var(--color-muted);
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
}

.section-header--left {
  text-align: left;
  max-width: none;
  margin: 0 0 2.5rem;
}

.steps-list {
  margin: 0 0 1.25rem;
  padding-left: 1.375rem;
  max-width: 42rem;
  color: var(--color-text-secondary);
}

.steps-list li {
  margin-bottom: 0.75rem;
  line-height: 1.65;
}

.section-note {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
  max-width: 42rem;
}

.section-note--center {
  margin: 2rem auto 0;
  text-align: center;
  max-width: 36rem;
}

.solution-case-group {
  margin-bottom: 3rem;
}

.solution-case-group:last-child {
  margin-bottom: 0;
}

.solution-case-heading {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.solution-case-desc {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.solution-case-group .card h4 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

/* ── 案例列表：分类标签（内容全在 HTML，JS 仅切换显示） ── */
.case-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.case-tab {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.125rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.case-tab:hover {
  color: var(--color-primary);
  border-color: rgba(37, 81, 214, 0.3);
}

.case-tab.is-active {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.case-intros {
  margin-bottom: 1.75rem;
}

.case-intro {
  display: none;
}

.case-intro.is-active {
  display: block;
}

html:not(.js-case-filter) .case-intro[data-case-intro="all"] {
  display: block;
}

.case-intro-heading {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.case-intro p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-muted);
}

/* ── 案例卡片增强（美工升级） ── */
.case-catalog .case-card.is-filtered-out {
  display: none;
}

.case-empty {
  margin: 2rem 0 0;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

/* 案例卡片：现代卡片风格，图片突出 */
.case-catalog .card--media {
  border-radius: var(--radius-lg);
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  transition: box-shadow 0.4s var(--ease-out-quart), transform 0.4s var(--ease-out-quart);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.case-catalog .card--media:hover {
  box-shadow: 0 20px 48px -16px rgba(37,99,235,0.18), 0 0 0 1px rgba(37,99,235,0.10);
  transform: translateY(-8px);
  border-color: rgba(37,99,235,0.08);
}

.case-catalog .card--media .card-thumb {
  aspect-ratio: 16 / 9;
  background: var(--color-bg-muted);
  overflow: hidden;
  position: relative;
}

.case-catalog .card--media .card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(15,23,42,0.04) 100%);
  pointer-events: none;
}

.case-catalog .card--media .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-quart);
}

.case-catalog .card--media:hover .card-thumb img {
  transform: scale(1.06);
}

.case-catalog .card--media .card-inner {
  padding: 1.5rem 1.625rem 1.75rem;
}

.case-catalog .card--media .card-inner .tag {
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.7rem;
  background: linear-gradient(135deg, var(--color-accent-soft), rgba(37,99,235,0.04));
  color: var(--color-primary);
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.6rem;
  font-weight: 500;
  border: 1px solid rgba(37,99,235,0.08);
}

.case-catalog .card--media .card-inner h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.case-catalog .card--media .card-inner h3 a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.case-catalog .card--media .card-inner h3 a:hover {
  color: var(--color-primary);
}

.case-catalog .card--media .card-inner p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 0.85rem;
}

.case-catalog .card--media .card-link {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0;
  transition: gap 0.2s ease;
}

.case-catalog .card--media .card-link::after {
  content: "→";
  transition: transform 0.25s ease;
  font-size: 1.1em;
}

.case-catalog .card--media .card-link:hover {
  gap: 0.55rem;
}

.case-catalog .card--media .card-link:hover::after {
  transform: translateX(4px);
}

/* 案例筛选器区域美化（美工升级） */
.region-filter {
  background: linear-gradient(135deg, #ffffff 0%, #fafcff 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.75rem;
  box-shadow: 0 4px 20px -8px rgba(0,0,0,0.04), 0 0 0 1px rgba(37,99,235,0.02);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.filter-row:last-of-type {
  margin-bottom: 0;
}

.filter-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  padding: 0.35rem 0.5rem 0.35rem 0;
  min-width: 2.5rem;
  flex-shrink: 0;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.9rem;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  color: var(--color-text-secondary);
  white-space: nowrap;
  line-height: 1.3;
}

.filter-chip:hover {
  border-color: var(--color-border);
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

.filter-chip.is-active {
  background: var(--color-accent-soft);
  color: var(--color-primary);
  border-color: rgba(37, 99, 235, 0.25);
  font-weight: 600;
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.08);
}

.filter-chip .badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  padding: 0 0.4rem;
  min-width: 1.2rem;
  height: 1.1rem;
  font-size: 0.6875rem;
  font-weight: 600;
  background: var(--color-border-light);
  color: var(--color-muted);
}

.filter-chip.is-active .badge {
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-primary);
}

.filter-chip.is-dimmed {
  color: var(--color-text-muted);
  border-color: var(--color-border-light);
  cursor: default;
  background: var(--color-bg-muted);
  opacity: 0.6;
}

.filter-chip.is-dimmed:hover {
  border-color: var(--color-border-light);
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
}

.filter-chip.is-dimmed .badge {
  background: var(--color-border-light);
  color: var(--color-text-muted);
}

#cityRow { min-height: 2.4rem; }

.filter-hint {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-full);
  line-height: 1.3;
}

.filter-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border-light);
  margin: 0.5rem 0 0;
}

.selected-info {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.selected-info strong {
  color: var(--color-primary);
  font-weight: 600;
}

@media (max-width: 600px) {
  .filter-chip { padding: 0.35rem 0.75rem; font-size: 0.75rem; }
  .filter-label { min-width: 2rem; font-size: 0.75rem; }
  .region-filter { padding: 1rem; }
}

.page-intro {
  margin: 0 0 2rem;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 44rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, rgba(37,99,235,0.02) 100%);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-intro-split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.page-intro-split .section-header--left {
  margin-bottom: 0;
}

.page-intro-split .page-intro {
  margin: 0;
  max-width: none;
}

/* ── Split rows (left / right) ── */
.split-stack {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.split-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.split-row--reverse .split-media { order: 2; }

.split-row--reverse .split-body { order: 1; }

.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-sm);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  display: block;
}

.split-media--wide img { aspect-ratio: 16 / 10; }

.split-body h3 {
  margin: 0.5rem 0 0.75rem;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--color-text);
}

.split-body p {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.split-result {
  font-size: 0.875rem !important;
  color: var(--color-text-secondary) !important;
  margin-bottom: 1.25rem !important;
}

.case-feature {
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.card-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.card-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ── FAQ split ── */
.faq-split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.faq-split-intro h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  margin: 0 0 0.75rem;
  color: var(--color-text);
  font-weight: 600;
}

.faq-split-intro p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.75;
}

.faq-split .faq-list {
  max-width: none;
  margin: 0;
}

/* ── Pillar cards ── */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pillar-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  text-align: left;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.pillar-card:hover {
  border-color: rgba(37, 81, 214, 0.22);
  box-shadow: var(--shadow-sm);
}

.pillar-card--ai,
.pillar-card--devops,
.pillar-card--geo { --pillar-accent: var(--color-accent); }

.pillar-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.015em;
}

.pillar-card p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.pillar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1.35rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  background: var(--color-primary-soft);
  border: none;
  color: var(--color-primary);
}

.pillar-card--ai .pillar-icon,
.pillar-card--devops .pillar-icon,
.pillar-card--geo .pillar-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.pillar-card .btn { width: 100%; }

.pillar-result {
  margin: -0.75rem 0 1.25rem !important;
  font-size: 0.875rem !important;
  color: var(--color-text-secondary) !important;
}

.problem-card .problem-result {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.problem-card .card-link--sub {
  display: inline-block;
  margin-left: 1rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: var(--shadow-sm);
}

.section-alt .card { background: var(--color-bg-elevated); }

.card:hover {
  border-color: rgba(37, 81, 214, 0.2);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  margin-top: 1.25rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-primary);
}

.card-link:hover { color: var(--color-primary-dark); }

/* ── Compare ── */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 52rem;
  margin: 0 auto;
}

.compare-box {
  padding: 1.75rem;
  border-radius: 0;
  border: 1px solid var(--color-border-light);
  background: var(--color-bg-elevated);
}

.compare-box h3 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.compare-box ul {
  margin: 0;
  padding-left: 1.125rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.compare-box li { margin-bottom: 0.5rem; }

.compare-box.highlight {
  background: var(--color-bg-elevated);
}

.compare-box.highlight h3 { color: var(--color-text); }

/* ── FAQ ── */
.faq-list {
  max-width: 40rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.faq-item {
  padding: 1.375rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition);
}

.faq-item:last-child { border-bottom: none; }

.faq-item:hover { background: var(--color-bg); }

.section-alt .faq-list { background: var(--color-bg-elevated); }

.faq-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.faq-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.section .faq-list,
.section-alt .faq-list {
  margin-top: 0;
}

.page-content .faq-list {
  margin-top: 2.5rem;
}

.page-content .faq-list + p,
.page-content h2 + .faq-list {
  margin-top: 1.5rem;
}

/* ── Browse links (solutions hub) ── */
.browse-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.browse-card {
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.browse-card h3 {
  margin: 0 0 1rem;
  padding-bottom: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.browse-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.browse-links li {
  margin-bottom: 0.625rem;
}

.browse-links li:last-child {
  margin-bottom: 0;
}

.browse-links a {
  display: block;
  padding: 0.375rem 0;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.browse-links a:hover {
  color: var(--color-primary);
}

.solution-overview-card.card:hover {
  transform: translateY(-2px);
}

.solution-overview-card p + p {
  margin-top: 0.75rem;
}

/* ── Page hero ── */
.page-hero {
  padding: 4rem 0 3rem;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(37, 81, 214, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, #eef2f8 0%, #ffffff 100%);
  border-bottom: none;
  position: relative;
}

/* 原 4px 顶条会在顶栏交界处显成「深线」，已去掉 */
.page-hero::before {
  content: none;
  display: none;
}

.product-cta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
  margin-top: 1.5rem;
}

.product-cta-bar .product-url {
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.product-cta-bar .product-url a { font-weight: 500; }

.page-hero h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  max-width: 40rem;
}

.page-hero > .container > p:last-child,
.page-hero p.hero-sub {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 40rem;
  line-height: 1.8;
}

.page-hero--visual {
  padding: 3.5rem 0 2.5rem;
}

.page-hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

.page-hero-content {
  min-width: 0;
}

.page-hero-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 8px 24px -12px rgba(0,0,0,0.08);
  aspect-ratio: 16 / 10;
  transition: box-shadow 0.3s ease, transform 0.3s var(--ease-out-quart);
}

.page-hero-media:hover {
  box-shadow: 0 12px 36px -16px rgba(0,0,0,0.12);
  transform: translateY(-3px);
}

.page-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero--visual .page-hero-content h1,
.page-hero--visual .page-hero-content p,
.page-hero--visual .page-hero-content .hero-sub {
  max-width: none;
}

.breadcrumb {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
  display: block;
}

.breadcrumb::before {
  content: "当前位置：";
}

.breadcrumb a { color: var(--color-muted); }

.breadcrumb a:hover { color: var(--color-text); }

.page-content {
  padding: 2rem 0 5rem;
}

.page-content:has(.article-body) {
  padding-top: 1.5rem;
}

.page-content h2 {
  margin: 2.5rem 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.page-content h2:first-child { margin-top: 0; }

.page-content p {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  max-width: 42rem;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body h2 {
  max-width: none;
}

.page-content ul,
.page-content ol {
  margin: 0 0 1rem;
  padding-left: 1.375rem;
  color: var(--color-text-secondary);
  max-width: 42rem;
  counter-reset: step-counter;
  list-style: none;
  padding-left: 0;
}

.page-content ol li {
  counter-increment: step-counter;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  position: relative;
  margin-bottom: 0.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-content ol li:hover {
  border-color: rgba(37,99,235,0.12);
  box-shadow: 0 2px 8px -4px rgba(37,99,235,0.04);
}

.page-content ol li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0.625rem;
  top: 0.75rem;
  width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-primary);
  border-radius: 50%;
  line-height: 1;
}

.page-content ul li {
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
  position: relative;
}

.page-content ul li::marker {
  color: var(--color-primary);
  font-size: 1.1em;
}

/* 嵌套在 ol 内部的 ul li 不继承 ol 的计数器编号 */
.page-content ol li ul li {
  counter-increment: none;
  padding-left: 1.25rem;
  border: none;
  background: transparent;
}
.page-content ol li ul li::before {
  display: none;
}

/* ── Comparison Table ── */
.comparison-table {
  width: 100%;
  max-width: 42rem;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.comparison-table thead {
  background: var(--color-primary);
  color: #fff;
}
.comparison-table th {
  padding: 0.875rem 1.25rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
}
.comparison-table td {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  vertical-align: top;
}
.comparison-table tbody tr {
  background: #fff;
  transition: background 0.2s ease;
}
.comparison-table tbody tr:hover {
  background: var(--color-bg-muted);
}
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}
.comparison-table td:first-child {
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
}

/* ── Stats ── */
/* ── Stats 数据统计（案例详情页） ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat {
  text-align: center;
  padding: 1.75rem 1rem 1.5rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-muted) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 8px -4px rgba(0,0,0,0.04);
  transition: transform 0.35s var(--ease-out-quart), box-shadow 0.35s var(--ease-out-quart), border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}

.stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.stat:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px -12px rgba(37,99,235,0.18);
  border-color: rgba(37,99,235,0.20);
}

.stat:hover::before {
  opacity: 1;
}

.stat strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.stat span {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  background: linear-gradient(135deg, var(--color-accent-soft), rgba(37,99,235,0.04));
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  border: 1px solid rgba(37,99,235,0.08);
  letter-spacing: 0.02em;
}

/* ── Related ── */
.related-links {
  margin-top: 2.5rem;
  padding: 1.5rem 1.75rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-bg-muted) 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  max-width: none;
  box-shadow: 0 2px 12px -6px rgba(0,0,0,0.03);
}

.related-links h2,
.related-links-title {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.related-links p { margin: 0; }

/* ── Link bar (footer / inline action links) ── */
.link-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin: 0;
  padding: 0;
}

.link-bar--section {
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--color-border-light);
}

.related-links .link-bar--flush {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.link-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-text-secondary);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s var(--ease-out-quart);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.link-bar-item:hover {
  color: var(--color-primary);
  border-color: rgba(37, 81, 214, 0.30);
  background: var(--color-accent-soft);
  box-shadow: 0 4px 12px -6px rgba(37,99,235,0.08);
  transform: translateY(-2px);
}

.link-bar-item--back {
  color: var(--color-muted);
  background: transparent;
  border-color: var(--color-border-light);
  box-shadow: none;
}

.link-bar-item--back:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border-color: var(--color-border);
}

.link-bar-item--cta {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(37, 81, 214, 0.22);
}

.link-bar-item--cta:hover {
  color: #fff;
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.link-bar-item--external::after {
  content: "↗";
  font-size: 0.75rem;
  opacity: 0.55;
}

/* ── Article pager（上一篇 / 下一篇）── */
.article-pager {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  margin-top: 2.5rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg-muted, #f4f6f9);
  border-radius: var(--radius-sm);
}

.article-pager__item {
  flex: 1 1 14rem;
  min-width: 0;
  display: block;
  padding: 0;
  text-decoration: none;
  color: inherit;
  background: transparent;
  border: none;
  box-shadow: none;
  transform: none;
  line-height: 1.5;
}

.article-pager__item:hover {
  background: transparent;
  border: none;
  box-shadow: none;
  transform: none;
}

.article-pager__item--prev {
  text-align: left;
}

.article-pager__item--next {
  text-align: right;
}

.article-pager__item--empty {
  visibility: hidden;
  pointer-events: none;
}

.article-pager__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.article-pager__item:hover .article-pager__label {
  color: var(--color-text);
}

.article-pager__title {
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-secondary);
  display: inline;
  -webkit-line-clamp: unset;
  overflow: visible;
}

.article-pager__item:hover .article-pager__title {
  color: var(--color-primary);
}

/* ── 相关资讯 ── */
.article-related {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

.article-related__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
}

.article-related__title::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.article-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-related__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.article-related__list li:last-child {
  border-bottom: none;
}

.article-related__list a {
  flex: 1;
  min-width: 0;
  font-size: 0.9375rem;
  line-height: 1.45;
  color: var(--color-text);
  text-decoration: none;
}

.article-related__list a:hover {
  color: var(--color-primary);
}

.article-related__list time {
  flex-shrink: 0;
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.contact-card {
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.contact-card h2,
.contact-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.guide-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.guide-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.guide-card:hover {
  border-color: rgba(37, 81, 214, 0.22);
  box-shadow: var(--shadow-sm);
}

.guide-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.guide-card p {
  flex: 1;
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.guide-card .card-link {
  margin-top: auto;
}

/* ── Blog ── */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 44rem;
}

.blog-card {
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  border-color: rgba(37, 81, 214, 0.22);
  box-shadow: var(--shadow-sm);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.blog-meta time {
  font-variant-numeric: tabular-nums;
}

.blog-card h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
}

.blog-card h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.blog-card h2 a:hover {
  color: var(--color-accent-dark);
}

.blog-card p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.blog-card-meta {
  margin: -0.5rem 0 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.blog-card-meta a {
  color: var(--color-accent-dark);
}

.page-hero--article {
  padding: 3rem 0 1.5rem;
}

/* Hero 与正文共用同一阅读列，避免标题宽、正文窄错位 */
.page-hero--article > .container,
.article-body {
  width: min(100% - 2.5rem, 52rem);
  max-width: 52rem;
  margin-inline: auto;
}

.page-hero--article h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.125rem);
  line-height: 1.35;
  margin: 0;
  max-width: none;
}

.article-body .faq-list {
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}

.article-body h2 {
  margin: 2rem 0 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p,
.article-body li {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.article-body ul {
  margin: 0 0 1rem;
  padding-left: 1.375rem;
}

.card h3 a {
  color: inherit;
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--color-accent-dark);
}

.checklist {
  margin: 1rem 0 1.5rem;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding: 0.625rem 0 0.625rem 1.75rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.checklist li:last-child { border-bottom: none; }

.checklist li::before {
  content: "□";
  position: absolute;
  left: 0;
  color: var(--color-accent-dark);
  font-weight: 600;
}

.footer-nav {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  line-height: 1.9;
}

.footer-nav a { color: rgba(255, 255, 255, 0.65); }

.footer-nav a:hover { color: #fff; }

/* ── Footer ── */
.site-footer {
  background: #f5f8fc;
  color: #64748b;
  padding: 3.5rem 0 0;
  margin-top: 0;
  border-top: 1px solid #e8eef6;
}

.footer-inner {
  padding-bottom: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr 1fr 1.15fr;
  gap: 2.5rem 1.75rem;
  padding-bottom: 2.5rem;
  align-items: start;
}

.footer-brand {
  padding-right: 1.75rem;
  border-right: 1px solid rgba(148, 163, 184, 0.28);
}

.footer-brand .footer-tagline {
  margin: 0 0 0.85rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
}

.footer-brand .footer-scope {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.45);
  max-width: 28rem;
}

.footer-brand-contact {
  margin-top: 1.35rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  max-width: 28rem;
}

.footer-brand-contact-title {
  display: block;
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: inherit;
}

.footer-brand-contact .footer-actions {
  margin-top: 0.9rem;
}

.footer-grid p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
}

.footer-contact {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-contact li {
  margin: 0 0 0.55rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.65);
}

.footer-contact li:last-child {
  margin-bottom: 0;
}

.footer-label {
  display: inline-block;
  min-width: 2.25rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8125rem;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-contact a:hover {
  color: #fff;
}

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 1rem;
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: #2563eb;
  color: #fff !important;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease;
}

.footer-cta:hover {
  background: #1d4ed8;
  color: #fff !important;
}

.footer-about-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.footer-about-link:hover {
  color: #fff;
}

.footer-grid strong {
  display: block;
  color: #fff;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.footer-grid a { color: rgba(255, 255, 255, 0.85); }

.footer-grid a:hover { color: #fff; }

@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem 1.75rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
    padding-right: 0;
    border-right: none;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.28);
  }
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.15rem 0 1.5rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer-copy {
  margin: 0;
}

.footer-beian {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1rem;
}

.footer-bottom a { color: rgba(255, 255, 255, 0.55); text-decoration: none; }

.footer-bottom a:hover { color: #fff; }

/* ── Mobile bottom bar (H5 / 扫码) ── */
.mobile-action-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 24px rgba(29, 33, 41, 0.1);
  gap: 0.625rem;
}

.mobile-action-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.mobile-action-bar__call {
  color: var(--color-text);
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
}

.mobile-action-bar__cta {
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37, 81, 214, 0.25);
}

/* ── Mobile ── */
@media (max-width: 900px) {
  .container {
    width: min(100% - 1.5rem, var(--max-width));
  }

  .mobile-action-bar {
    display: flex;
  }
  .hero--split .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content { max-width: none; margin-inline: auto; }

  .hero-lead { margin-inline: auto; }

  .hero-actions { justify-content: center; }

  .hero { padding: 2.5rem 0 3rem; }

  .split-row,
  .split-row--reverse {
    grid-template-columns: 1fr;
  }

  .split-row--reverse .split-media,
  .split-row--reverse .split-body { order: unset; }

  .page-intro-split { grid-template-columns: 1fr; }

  .faq-split { grid-template-columns: 1fr; }

  .faq-split-intro { text-align: center; }

  .card-grid--2 { grid-template-columns: 1fr; }

  .card-grid--3,
  .card-grid--4 { grid-template-columns: 1fr; }

  /* Hero visible immediately — no flash before JS */
  .page-home .hero .reveal {
    opacity: 1;
    transform: translateY(0);
  }

  .hero-pillars { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }

  .header-inner { position: relative; }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border-light);
    padding: 0.75rem 1rem 1rem;
    box-shadow: none;
  }

  .site-nav.open { display: block; }

  .site-nav > ul > li > a,
  .site-nav .sub-menu a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0.625rem 0.75rem;
  }

  .site-nav > ul > li > a:not(.nav-cta)::after {
    display: none;
  }

  .nav-cta {
    margin-top: 0.5rem;
    text-align: center;
    justify-content: center;
  }

  .site-nav > ul {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav .sub-menu,
  .site-nav .mega-panel {
    position: static;
    box-shadow: none;
    border: none;
    border-left: 1px solid var(--color-border-light);
    padding: 0 0 0 0.75rem !important;
    display: none;
    background: transparent;
    background-image: none !important;
    margin-top: 0.25rem;
    border-radius: 0;
    max-height: none;
    width: auto;
    overflow: visible;
  }

  .site-nav .mega-panel::before { display: none; }
  .site-nav .mega-panel::after { display: none !important; }

  .has-sub.open > .mega-panel { display: flex; }

  .mega-panel-inner {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.75rem 0 0.25rem;
    height: auto;
    min-height: 0;
  }

  .mega-intro {
    min-height: 0;
    height: auto;
    padding: 0.5rem 0;
    background-image: none !important;
    background-color: transparent !important;
  }

  .mega-cols {
    padding: 0;
  }

  .mega-cols {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .mega-cols.mega-cols--industries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.25rem;
  }

  .mega-panel-foot {
    background: transparent !important;
    border: none !important;
    grid-column: auto !important;
    grid-row: auto !important;
    padding: 0.5rem 0 0 !important;
  }

  .mega-panel-foot-inner {
    padding-left: 0 !important;
  }

  .mega-panel-foot-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .compare-grid,
  .pillar-grid { grid-template-columns: 1fr; }

  .section { padding: 3.5rem 0; }

  .page-hero {
    padding: 2.5rem 0 1.75rem;
  }

  .page-hero h1 {
    font-size: clamp(1.375rem, 6vw, 1.875rem);
    line-height: 1.3;
  }

  .page-hero--article {
    padding: 2rem 0 1.25rem;
  }

  .page-hero--article h1 {
    font-size: clamp(1.25rem, 5.5vw, 1.625rem);
  }

  .page-content {
    padding: 1.75rem 0 3rem;
  }

  .page-hero--article > .container,
  .article-body {
    width: min(100% - 1.5rem, 52rem);
  }

  .link-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .link-bar-item {
    justify-content: center;
    min-height: 44px;
  }

  .article-pager {
    flex-direction: column;
    gap: 0.75rem;
  }

  .article-pager__item--next {
    text-align: left;
  }

  .article-pager__item--empty {
    display: none;
  }

  .article-related__list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem 1.5rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
    padding-right: 0;
    border-right: none;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid #e2e8f0;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .product-cta-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .product-cta-bar .btn {
    width: 100%;
  }

  .hero h1 {
    font-size: clamp(1.75rem, 8vw, 2.25rem);
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem 0.75rem;
  }

  .hero-stat {
    min-width: 0;
  }

  .cta-band {
    padding: 2.5rem 0;
  }

  .cta-band-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-band-actions .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .browse-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Enterprise / FanRuan-style components ── */
.product-card {
  position: relative;
  padding-top: 2rem;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #4d9fff);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.product-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.product-card-desc {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 0.5rem !important;
}

.case-highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.case-highlight {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

.case-highlight:hover {
  transform: none;
}

.case-highlight-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-muted);
}

.case-highlight-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease-out-quart);
}

.case-highlight:hover .case-highlight-thumb img {
  transform: scale(1.03);
}

.case-highlight-body {
  padding: 1.5rem 1.75rem 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-highlight-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.case-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.75rem 0 1rem;
  padding: 0;
  list-style: none;
}

.case-metrics li {
  font-size: 0.8125rem;
  color: var(--color-primary);
  font-weight: 500;
}

.case-metrics li::before {
  content: "✓ ";
  color: var(--color-primary);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.resource-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.resource-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 700;
}

.resource-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.cta-band {
  padding: 4rem 0;
  background: var(--gradient-dark);
  color: #fff;
  text-align: center;
}

.cta-band h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: #fff;
}

.cta-band p {
  margin: 0 auto 1.75rem;
  max-width: 32rem;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.7;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cta-band .btn-primary:hover {
  background: #eef2f8;
  color: var(--color-primary-dark);
}

.cta-band .btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
  margin-left: 0.75rem;
}

.cta-band .btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.section-actions {
  text-align: center;
  margin-top: 2rem;
}

@media (max-width: 900px) {
  .case-highlight-grid,
  .service-grid,
  .resource-grid,
  .browse-grid {
    grid-template-columns: 1fr;
  }

  .case-highlight {
    flex-direction: column;
  }

  .case-highlight-thumb {
    width: 100%;
  }
}

/* ── GEO 术语表（definition list） ── */
.term-list {
  margin: 1.5rem 0 2rem;
  padding: 0;
  max-width: 46rem;
  display: grid;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.term-list dt {
  padding: 1rem 1.25rem 0.35rem;
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.9875rem;
  border-top: 1px solid var(--color-border-light);
}

.term-list dt:first-child {
  border-top: none;
}

.term-list dd {
  margin: 0;
  padding: 0 1.25rem 1rem;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ── 实战分享分页 ── */
.blog-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  justify-content: center;
  margin-top: 2.5rem;
}

.blog-pagination:empty { display: none; }

.blog-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.blog-page-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.blog-page-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  cursor: default;
}

.blog-page-btn.is-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: default;
}

/* ============================================================
   视觉升级 2026 — 全站外观刷新（覆盖式，置于文件末尾以生效）
   ============================================================ */

/* —— 全局排版（白净 SaaS：无衬线 + 紧致大标题 + 近黑） —— */
.hero h1,
.page-hero h1,
.section-header h2,
.faq-split-intro h2 {
  font-family: var(--font);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
}
.faq-split-intro h2 { line-height: 1.15; }

.section { padding: 6rem 0; }

.page-content h2 {
  font-size: 1.85rem;
  letter-spacing: -0.01em;
  margin: 2.75rem 0 1rem;
}

/* —— 顶栏：通透玻璃感 —— */
.logo-text { font-weight: 800; }

/* —— 按钮：实色靛蓝 + 适度圆角（Stripe/Linear 风） —— */
.btn {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius);
  letter-spacing: 0;
}
.btn-primary {
  background: var(--color-primary);
  border: none;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08), 0 2px 8px rgba(37, 81, 214, 0.18);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 14px rgba(37, 81, 214, 0.28);
  transform: translateY(-1px);
}
.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: #fff;
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}
.nav-cta {
  border-radius: var(--radius) !important;
  background: var(--color-primary) !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08), 0 2px 8px rgba(37, 81, 214, 0.18);
}
.nav-cta:hover { background: var(--color-primary-dark) !important; }

/* —— Hero：柔和光晕渐变 —— */
.hero {
  position: relative;
  padding: 6rem 0 5.5rem;
  background:
    radial-gradient(60% 80% at 82% 6%, rgba(37, 81, 214, 0.05) 0%, transparent 60%),
    radial-gradient(55% 70% at 4% 92%, rgba(37, 81, 214, 0.03) 0%, transparent 55%),
    linear-gradient(180deg, #fbfcfe 0%, #ffffff 78%);
}
.page-home .hero { padding: 6rem 0 5rem; }
.hero h1 { font-size: clamp(2.5rem, 5.5vw, 3.9rem); line-height: 1.1; }
.hero-trust { color: var(--color-primary); }
.hero-lead { font-size: 1.15rem; color: var(--color-text-secondary); }
.hero-stats { margin-top: 3.25rem; padding-top: 2.5rem; }
.hero-stat strong {
  font-size: 2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
}

/* —— 二级页 Hero —— */
.page-hero {
  padding: 4.5rem 0 3.25rem;
  background:
    radial-gradient(50% 75% at 100% 0%, rgba(37, 81, 214, 0.05) 0%, transparent 55%),
    radial-gradient(45% 60% at 0% 100%, rgba(37, 81, 214, 0.03) 0%, transparent 55%),
    linear-gradient(180deg, #fbfcfe 0%, #ffffff 100%);
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.875rem); line-height: 1.12; }

/* —— Section 标签：极简 eyebrow（白净 SaaS） —— */
.section-label {
  padding: 0;
  background: transparent;
  color: var(--color-primary);
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 600;
}

/* —— 卡片统一升级：圆角 + 层次阴影 + 悬浮上浮 —— */
.card,
.pillar-card,
.browse-card,
.case-feature,
.stat,
.hero-pillar-preview {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-out-quart), box-shadow 0.3s var(--ease-out-quart), border-color 0.3s var(--ease-out-quart);
}
.card:hover,
.pillar-card:hover,
.browse-card:hover,
.hero-pillar-preview:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 81, 214, 0.22);
}
.card-grid { gap: 1.25rem; }

/* 产品卡序号徽标（首页/方案卡） */
.product-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 14px;
  background: var(--gradient-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 6px 16px rgba(10, 37, 64, 0.18);
  margin-bottom: 1rem;
}
.product-card-desc {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

/* 资源卡图标圆角渐变徽标 */
.resource-card-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 14px;
  background: var(--gradient-primary) !important;
  color: #fff !important;
  box-shadow: 0 6px 16px rgba(10, 37, 64, 0.16);
}

/* —— Tag 胶囊 —— */
.tag {
  padding: 0.28rem 0.7rem;
  border: none;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.01em;
}

/* —— 统计数字渐变 —— */
.stat strong {
  font-size: 1.7rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
}

/* —— FAQ —— */
.faq-list { border-radius: 0; box-shadow: none; }
.faq-item:hover { background: transparent; }

/* —— 对比框：两侧同款浅边框 + 轻阴影，不高亮加深 —— */
.compare-box.highlight {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

/* —— 术语表 —— */
.term-list { box-shadow: var(--shadow-sm); }

/* —— CTA 渐变横幅 —— */
.cta-band {
  position: relative;
  padding: 5rem 0;
  background: var(--gradient-dark);
  color: #fff;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(42% 80% at 85% 18%, rgba(255, 255, 255, 0.14) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.82); }
.cta-band .btn-primary { background: #fff; color: var(--color-primary); box-shadow: 0 10px 26px rgba(0, 0, 0, 0.2); }
.cta-band .btn-primary:hover { background: #fff; color: var(--color-primary-dark); transform: translateY(-2px); }
.cta-band .btn-outline { border-color: rgba(255, 255, 255, 0.55); color: #fff; background: transparent; }
.cta-band .btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; }

/* —— 实战分享列表：单列阅读，避免空栅格 —— */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 52rem;
}
.blog-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.6rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-out-quart), box-shadow 0.3s var(--ease-out-quart), border-color 0.3s var(--ease-out-quart);
}
.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 81, 214, 0.22);
}
.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}
.blog-card h2 { font-size: 1.15rem; line-height: 1.4; margin: 0 0 0.6rem; }
.blog-card h2 a { color: var(--color-text); }
.blog-card h2 a:hover { color: var(--color-primary); }
.blog-card-meta { font-size: 0.8125rem; color: var(--color-muted); margin: 0 0 1rem; }
.blog-card-meta a { color: var(--color-primary); }

/* —— 案例高亮 —— */
.case-highlight { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }

/* —— 页脚分隔 —— */
.site-footer { border-top: 1px solid #e8eef6; }

/* —— 移动端底栏 CTA —— */
.mobile-action-bar__cta { background: var(--gradient-primary) !important; }

/* —— 响应式 —— */
@media (max-width: 760px) {
  .hero { padding: 4.25rem 0 3.5rem; }
  .section { padding: 4rem 0; }
}

/* ============================================================
   国际化 SaaS 企业站风格 v3 — 更通透、更克制、更现代
   （Inter 字体 + 大留白 + 精致排版，参考主流海外 B2B/SaaS 站）
   ============================================================ */

body { font-feature-settings: "cv02", "cv03", "cv11", "ss01"; -webkit-font-smoothing: antialiased; }

/* —— 排版：无衬线大标题 + 紧致字距（白净 SaaS，覆盖早期设定） —— */
.hero h1 { font-family: var(--font); font-size: clamp(2.5rem, 5.6vw, 4rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.06; color: var(--color-text); }
.hero-lead { font-size: clamp(1.0625rem, 1.5vw, 1.25rem); line-height: 1.75; color: var(--color-text-secondary); }
.hero-trust { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em; text-transform: none; }
.section-header h2 { font-family: var(--font); font-size: clamp(1.9rem, 3.6vw, 2.75rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.14; color: var(--color-text); }
.section-header p { font-size: 1.125rem; }
.page-hero h1 { font-family: var(--font); font-weight: 800; letter-spacing: -0.03em; line-height: 1.12; color: var(--color-text); }
.card h3, .pillar-card h3, .blog-card h2 { font-family: var(--font); letter-spacing: -0.015em; }

/* —— 留白更大，呼吸感更强 —— */
.section { padding: 7rem 0; }
.section-header { margin-bottom: 3.5rem; }

/* —— 导航更精致 —— */
.header-inner { min-height: 70px; }
.site-nav a { font-size: 0.9rem; letter-spacing: 0; }

/* —— 区段标签：极简 eyebrow —— */
.section-label {
  background: transparent;
  color: var(--color-primary);
  padding: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 600;
}

/* —— 卡片更轻盈：细边、柔影、宽内距 —— */
.card,
.pillar-card,
.browse-card,
.case-feature,
.blog-card {
  border-color: var(--color-border-light);
  box-shadow: 0 1px 3px rgba(15, 23, 41, 0.04);
  padding: 2rem;
}
.card:hover,
.pillar-card:hover,
.browse-card:hover,
.blog-card:hover {
  box-shadow: 0 20px 44px rgba(15, 23, 41, 0.10);
  border-color: var(--color-border);
  transform: translateY(-4px);
}

/* —— 按钮字号微调 —— */
.btn { font-size: 0.95rem; }

/* —— Hero：叠加细网格背景，向中心淡出（Linear / Vercel 风） —— */
.hero { overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 23, 41, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 41, 0.045) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(72% 64% at 50% 28%, #000 0%, transparent 76%);
  mask-image: radial-gradient(72% 64% at 50% 28%, #000 0%, transparent 76%);
}
.hero .container { position: relative; z-index: 1; }

/* —— 媒体/图片更柔的圆角与阴影 —— */
.media-figure,
.split-media,
.card--media,
.case-highlight-thumb,
.hero-panel-image { border-radius: var(--radius-lg); }

/* —— 链接条按钮，统一观感 —— */
.link-bar-item { border-radius: var(--radius-sm); border-color: var(--color-border-light); }
.link-bar-item--cta { background: var(--gradient-primary); border: none; }

/* —— 响应式收口 —— */
@media (max-width: 760px) {
  .section { padding: 4.5rem 0; }
  .section-header { margin-bottom: 2.5rem; }
  .hero h1 { font-size: clamp(2.25rem, 9vw, 3rem); }
  .card, .pillar-card, .browse-card, .blog-card, .case-feature { padding: 1.5rem; }
}

/* ── 首页：企业官网横幅 / 简介 / 联系条 ── */
.page-home .home-banner {
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(2rem, 4vw, 3rem);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(37, 81, 214, 0.04) 0%, transparent 55%),
    linear-gradient(180deg, #fbfcfe 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border-light);
}

.home-banner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

/* 横幅：左文案 + 右侧 AI 环绕图 */
.page-home .home-banner-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  align-items: center;
}
.home-banner-copy {
  max-width: 36rem;
}

/* ===================================================================
   Hero 右侧 · AI 推荐可见度看板（横向卡片 + 底部 AI 图标条，微盟风）
   =================================================================== */
.ai-board {
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(37,81,214,0.06), transparent 60%),
    #ffffff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(37, 81, 214, 0.14), 0 2px 8px rgba(15,23,42,0.05);
  overflow: hidden;
}
.ai-board-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--color-border-light);
  background: linear-gradient(180deg, #f8faff, #ffffff);
}
.ai-board-dots { display: inline-flex; gap: 5px; }
.ai-board-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--color-border); }
.ai-board-dots i:first-child { background: #ff5f57; }
.ai-board-dots i:nth-child(2) { background: #febc2e; }
.ai-board-dots i:nth-child(3) { background: #28c840; }
.ai-board-title { font-size: 0.85rem; font-weight: 700; color: var(--color-text); letter-spacing: -0.01em; }

.ai-board-body { padding: 1.3rem 1.35rem 1.1rem; }
.ai-board-metric { margin-bottom: 1.1rem; }
.ai-metric-label { display: block; font-size: 0.78rem; color: var(--color-muted); margin-bottom: 0.2rem; }
.ai-metric-val {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 0.55rem;
}
.ai-metric-bar { height: 8px; border-radius: var(--radius-full); background: var(--color-bg-muted); overflow: hidden; }
.ai-metric-bar i {
  display: block; height: 100%; width: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2));
  animation: aiMeter 1.4s var(--ease-silk) 0.4s forwards;
}
@keyframes aiMeter { to { width: var(--w); } }

.ai-board-rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.ai-board-rows li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.55rem 0.75rem;
  background: linear-gradient(135deg, #f7f9ff, #eef2fd);
  border-radius: var(--radius);
  font-size: 0.82rem;
}
.ai-src { color: var(--color-text-secondary); }
.ai-hit {
  display: inline-flex; align-items: center; gap: 0.28rem;
  color: var(--color-primary); font-weight: 700; font-size: 0.75rem;
  background: var(--color-primary-soft); padding: 0.2rem 0.55rem; border-radius: var(--radius-full);
}
.ai-hit::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--color-primary); }

.ai-board-foot {
  padding: 0.95rem 1.35rem 1.1rem;
  border-top: 1px solid var(--color-border-light);
  background: linear-gradient(180deg, #fbfcff, #f5f8ff);
}
.ai-foot-label { display: block; font-size: 0.72rem; color: var(--color-muted); margin-bottom: 0.55rem; letter-spacing: 0.02em; }
.ai-logo-row { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.ai-logo-row img {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: #fff;
  padding: 5px;
  object-fit: contain;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 2px 6px rgba(15,23,42,0.06);
  transition: transform 0.3s var(--ease-silk), box-shadow 0.3s var(--ease-silk);
}
.ai-logo-row img:hover { transform: translateY(-3px); box-shadow: 0 8px 18px rgba(37,81,214,0.22); }

@media (max-width: 900px) {
  .ai-board { max-width: 440px; margin-top: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  .ai-metric-bar i { animation: none; width: var(--w); }
}

.home-banner-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow);
  aspect-ratio: 3 / 2;
}

.home-banner-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-banner-eyebrow {
  margin: 0 0 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.home-banner h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font);
  font-size: clamp(2rem, 4.2vw, 2.85rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.005em;
  color: var(--color-text);
}

.home-banner-lead {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.home-trust-badges,
.page-trust-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.home-trust-badges li,
.page-trust-badges li {
  padding: 1rem 1.125rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-bg-muted) 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px -4px rgba(0,0,0,0.03);
  transition: transform 0.3s var(--ease-out-quart), box-shadow 0.3s var(--ease-out-quart), border-color 0.3s ease;
}

.home-trust-badges li:hover,
.page-trust-badges li:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px -10px rgba(37,99,235,0.10);
  border-color: rgba(37,99,235,0.12);
}

.home-trust-badges strong,
.page-trust-badges strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.home-trust-badges span,
.page-trust-badges span {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--color-muted);
}

.home-trust-bar,
.page-trust-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.home-trust-bar a,
.page-trust-bar a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.home-trust-bar a:hover,
.page-trust-bar a:hover {
  text-decoration: underline;
}

.home-trust-bar-sep,
.page-trust-bar-sep {
  color: var(--color-border);
}

.page-hero .page-trust-badges {
  margin-top: 1.25rem;
}

.page-hero .page-trust-bar {
  margin-top: 1rem;
}

.page-hero-content .product-cta-bar {
  margin-top: 1.25rem;
}

.home-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 0;
}

.home-about-split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

.home-about-split--media-first {
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

.home-about-copy p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.home-about-copy p:last-of-type {
  margin-bottom: 0;
}

.home-about-link {
  margin-top: 1.25rem !important;
}

.home-about-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  aspect-ratio: 4 / 3;
}

.home-about-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.home-methodology {
  display: block;
  margin: 1.25rem 0 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, rgba(37, 81, 214, 0.04) 0%, rgba(37, 81, 214, 0.02) 100%);
  border: 1px solid rgba(37, 81, 214, 0.18);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.home-methodology:hover {
  border-color: rgba(37, 81, 214, 0.35);
  box-shadow: 0 4px 16px rgba(37, 81, 214, 0.05);
}

.home-methodology-eyebrow {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.home-methodology-title {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1rem;
  color: var(--color-text);
}

.home-methodology-desc {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-muted);
}

.home-paths-label {
  margin: 1.25rem 0 0.625rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-muted);
}

.home-capabilities li {
  padding: 0.875rem 1rem;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
}

.home-capabilities strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-text);
}

.home-capabilities span {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-muted);
}

.page-home .home-biz-card {
  padding: 1.5rem 1.75rem 1.75rem;
  border-top: 3px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-home .home-biz-card:hover {
  border-top-color: var(--color-primary);
}

.home-contact-strip {
  padding: 2rem 0;
  background: linear-gradient(180deg, #f4f7fb 0%, #eef3f9 100%);
  border-top: 1px solid var(--color-border-light);
}

.home-contact-strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.home-contact-strip strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.home-contact-strip p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.home-contact-strip-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  font-size: 0.9375rem;
}

.home-contact-strip-links a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.home-contact-strip-links a:hover {
  text-decoration: underline;
}

.home-contact-strip-links span {
  color: var(--color-border);
}

.section-compact {
  padding: 4.75rem 0;
}

.section-header--compact {
  margin-bottom: 1.5rem;
}

.section-header--compact h2 {
  margin-bottom: 0;
}

.section-header--left {
  text-align: left;
}

.home-intro {
  max-width: 42rem;
  margin-inline: auto;
  text-align: center;
}

.home-intro p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.home-intro p:last-child {
  margin-bottom: 0;
}

.service-grid--home {
  grid-template-columns: repeat(3, 1fr);
}

.home-biz-card {
  padding: 1.5rem 1.75rem;
}

.home-biz-card .tag {
  margin-bottom: 0.75rem;
}

.home-biz-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
}

.home-biz-card p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.geo-flywheel {
  margin: 0;
  padding-left: 1.25rem;
  max-width: 42rem;
}

.geo-flywheel li {
  margin-bottom: 0.75rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.geo-flywheel li:last-child {
  margin-bottom: 0;
}

.section-header-desc {
  margin: 0.5rem 0 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.home-updates-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem 3rem;
}

.home-updates-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.home-link-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.home-link-list li + li {
  border-top: 1px solid var(--color-border-light);
}

.home-link-list a {
  display: block;
  padding: 1rem 1.25rem;
  text-decoration: none;
  transition: background var(--transition);
}

.home-link-list a:hover {
  background: var(--color-bg-muted);
}

.home-link-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.home-link-meta .tag {
  font-size: 0.6875rem;
  padding: 0.15rem 0.5rem;
}

.home-link-meta time {
  font-variant-numeric: tabular-nums;
}

.home-link-title {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
}

.home-link-list a:hover .home-link-title {
  color: var(--color-primary);
}

.home-more-link {
  margin: 1rem 0 0;
}

.cta-band--compact {
  padding: 3rem 0;
}

@media (max-width: 900px) {
  .service-grid--home,
  .home-updates-grid,
  .home-updates-grid--3,
  .home-about-split,
  .home-banner-grid,
  .page-hero-split {
    grid-template-columns: 1fr;
  }

  .home-capabilities {
    grid-template-columns: 1fr;
  }

  .page-hero-media {
    order: -1;
    max-width: 36rem;
    margin-inline: auto;
    width: 100%;
  }

  .home-banner-media,
  .home-about-figure {
    max-width: 32rem;
    margin-inline: auto;
    width: 100%;
  }

  .home-banner-copy {
    max-width: none;
  }

  .home-banner-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }

  .home-trust-badges,
  .page-trust-badges {
    grid-template-columns: 1fr;
  }

  .home-intro {
    text-align: left;
  }

  .home-contact-strip-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ── 首页：路径与列表编辑风（保留分隔线布局）── */
.page-home .section-alt {
  background: #fff;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.page-home #methodology .compare-grid {
  margin-top: 0.5rem;
}

.page-home #methodology .section-header {
  max-width: none;
}

.page-home #methodology .section-header h2 {
  white-space: nowrap;
}

@media (max-width: 640px) {
  .page-home #methodology .section-header h2 {
    white-space: normal;
  }
}

.page-home #methodology .home-more-link {
  text-align: center;
}

.page-home .home-methodology-text {
  max-width: 40rem;
  margin: 1.5rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.9375rem;
  line-height: 1.65;
  text-align: center;
  color: var(--color-text-secondary);
}

.page-home .home-methodology-text strong {
  color: var(--color-text);
  font-weight: 600;
}

.page-home .home-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-home .home-path-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0;
  padding-top: 0.25rem;
  border-top: 1px solid var(--color-border-light);
}

.page-home .home-path-item {
  margin: 0;
  padding: 1.5rem 2rem 0 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.page-home .home-path-item + .home-path-item {
  padding-left: 2rem;
  border-left: 1px solid var(--color-border-light);
}

.page-home .home-path-item:hover {
  transform: none;
  box-shadow: none;
}

.page-home .home-path-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.page-home .home-path-item h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.page-home .home-path-item h3 a:hover {
  color: var(--color-primary);
}

.page-home .home-path-item p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
}

.page-home .home-link-list {
  border: none;
  border-radius: 0;
  background: transparent;
  border-top: 1px solid var(--color-border-light);
}

.page-home .home-link-list li + li {
  border-top: 1px solid var(--color-border-light);
}

.page-home .home-link-list a {
  padding: 1rem 0;
}

.page-home .home-link-list a:hover {
  background: transparent;
}

.page-home .home-link-meta .home-label {
  display: inline;
  margin: 0;
  letter-spacing: 0.06em;
}

.page-home .home-contact-strip {
  background: linear-gradient(180deg, #f4f7fb 0%, #eef3f9 100%);
  border-top: 1px solid var(--color-border-light);
}

@media (max-width: 900px) {
  .page-home .home-path-list {
    grid-template-columns: 1fr;
    border-top: none;
  }

  .page-home .home-path-item {
    padding: 1.25rem 0 0;
    border-top: 1px solid var(--color-border-light);
  }

  .page-home .home-path-item + .home-path-item {
    padding-left: 0;
    border-left: none;
  }
}

/* ══════════════════════════════════════
   全站：稳重 B2B · 微圆角 · 轻阴影
   ══════════════════════════════════════ */

/* 按钮 / 导航 CTA：使用设计令牌 */
.btn,
.nav-cta,
.link-bar-item,
.back-to-top {
  border-radius: var(--radius-sm);
}

.btn-primary:hover,
.btn-outline:hover,
.nav-cta:hover {
  transform: translateY(-1px);
}

.nav-cta {
  background: var(--color-primary) !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
}

/* 卡片悬停：轻抬升，不破坏列表式布局 */
.card:hover,
.pillar-card:hover,
.browse-card:hover,
.blog-card:hover,
.hero-pillar-preview:hover,
.guide-card:hover {
  box-shadow: var(--shadow-sm);
}

/* 顶栏：悬停仅下划线，无底色块 */
.site-nav > ul > li > a:not(.nav-cta) {
  border-radius: var(--radius-sm);
}

/* 区块与 Hero：浅底 + 分隔线 */
.hero,
.page-hero {
  background:
    radial-gradient(ellipse at 0% 0%, rgba(37, 81, 214, 0.04) 0%, transparent 55%),
    linear-gradient(180deg, #fbfcfe 0%, #ffffff 100%) !important;
  border-bottom: 1px solid var(--color-border-light);
}

.section-alt {
  background: #fff;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

/* 标签 / 区段标签：纯文字，无胶囊 */
.tag,
.section-label {
  display: inline-block;
  padding: 0;
  margin-bottom: 0.5rem;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* 卡片类：无框无影，列表式分隔 */
.card,
.pillar-card,
.browse-card,
.blog-card,
.case-feature,
.guide-card,
.contact-card,
.stat,
.hero-pillar-preview,
.related-links {
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

/* 对比框：两侧统一白卡片（内在 / 外在）——尖角、浅边框 */
.compare-box {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: 0;
  box-shadow: var(--shadow-sm);
}

.contact-grid .contact-card {
  padding: 1.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.card-grid .card,
.service-grid .card,
.guide-list .guide-card {
  border-top: 1px solid var(--color-border-light);
}

.contact-grid {
  gap: 1rem;
}

.card:hover,
.browse-card:hover,
.blog-card:hover,
.guide-card:hover {
  border-color: transparent;
}

.blog-list {
  gap: 0;
}

.blog-list .blog-card {
  border-top: 1px solid var(--color-border-light);
  padding: 1.5rem 0;
}

.blog-list .blog-card:first-child {
  border-top: none;
}

/* 多列卡片：竖线分隔 */
@media (min-width: 901px) {
  .card-grid--2 .card:nth-child(n+3),
  .card-grid--3 .card:not(:nth-child(3n+1)),
  .card-grid--4 .card:not(:nth-child(4n+1)),
  .service-grid .card:not(:first-child) {
    border-left: 1px solid var(--color-border-light);
    padding-left: 1.75rem;
  }

  .card-grid--2,
  .card-grid--3,
  .card-grid--4,
  .service-grid {
    gap: 0 2rem;
  }
}

/* 案例筛选：下划线 Tab */
.case-tabs {
  gap: 0;
  border-bottom: 1px solid var(--color-border-light);
}

.case-tab {
  border: none;
  border-radius: 0;
  background: transparent;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 0.625rem 1rem;
}

.case-tab:hover {
  background: transparent;
  color: var(--color-primary);
}

.case-tab.is-active {
  background: transparent;
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* FAQ / 延伸阅读（手风琴样式见文件末尾「全站 FAQ」） */
.related-links {
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--color-border-light);
}

/* 链接条：纯文字链 */
.link-bar-item {
  background: transparent;
  border: none;
  padding: 0.5rem 0;
  box-shadow: none;
}

.link-bar-item--cta {
  background: var(--color-primary) !important;
  border: none;
  color: #fff !important;
  padding: 0.5rem 1rem;
}

.link-bar-item--cta:hover {
  background: var(--color-primary-dark) !important;
  color: #fff !important;
}

/* 图片 / 截图：微圆角轻阴影 */
.media-figure,
.screenshot-item,
.card--media,
.card-thumb,
.split-media,
.page-hero-media,
.case-highlight-thumb,
.hero-panel-image,
.home-banner-media,
.home-about-figure {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.media-figure figcaption,
.screenshot-item figcaption {
  border-top: 1px solid var(--color-border-light);
}

.screenshot-item::after,
.media-figure::after {
  border-radius: var(--radius-sm);
}

.product-card-icon {
  border-radius: var(--radius);
}

/* 首页列表（与全局统一） */
.home-link-list {
  border: none;
  border-radius: 0;
  background: transparent;
  border-top: 1px solid var(--color-border-light);
}

.home-link-list li + li {
  border-top: 1px solid var(--color-border-light);
}

.home-link-list a {
  padding: 1rem 0;
}

.home-link-list a:hover {
  background: transparent;
}

.home-contact-strip {
  background: linear-gradient(180deg, #f4f7fb 0%, #eef3f9 100%);
  border-top: 1px solid var(--color-border-light);
}

/* 移动端底栏 */
.mobile-action-bar {
  box-shadow: var(--shadow-sm);
  border-top: 1px solid var(--color-border-light);
}

.mobile-action-bar__call {
  border-radius: var(--radius-sm);
}

.mobile-action-bar__cta {
  border-radius: var(--radius-sm);
}

/* 案例高亮 / 分页 */
.case-highlight {
  border-radius: 0;
  box-shadow: none;
  border-top: 1px solid var(--color-border-light);
}

.case-highlight-grid {
  gap: 0 2rem;
}

.case-highlight:hover .case-highlight-thumb img {
  transform: none;
}

.blog-page-btn {
  border: none;
  border-radius: 0;
  background: transparent;
  border-bottom: 2px solid transparent;
}

.blog-page-btn.is-active {
  background: transparent;
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.blog-page-btn:hover:not(.is-disabled):not(.is-active) {
  background: transparent;
  color: var(--color-primary);
}

/* ===================================================================
   增强层 v5 · 白净底 + 丝滑亮眼（在保留 SaaS 白净的前提下增加高级动感）
   - Hero 柔和彩色光晕 + 细网格 + 渐变强调字
   - 卡片流光边框 / 平滑上浮
   - 全局更顺滑的缓动与滚动渐入
   =================================================================== */

/* —— 全局更丝滑的缓动基调 —— */
:root {
  --ease-silk: cubic-bezier(0.22, 1, 0.36, 1);
  --color-primary-2: #6a5cff;   /* 辅助紫，用于渐变增亮 */
  --color-primary-3: #22d3ee;   /* 青色高光点缀 */
}

* { -webkit-tap-highlight-color: transparent; }

/* —— Hero：白底 + 柔和多彩光晕 + 细网格（Linear/Stripe 观感） —— */
.hero,
.page-home .home-banner {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(48% 60% at 82% -6%, rgba(106, 92, 255, 0.16) 0%, transparent 60%),
    radial-gradient(42% 55% at 6% 108%, rgba(34, 211, 238, 0.12) 0%, transparent 60%),
    radial-gradient(60% 70% at 50% 0%, rgba(37, 81, 214, 0.08) 0%, transparent 65%),
    #ffffff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(80% 70% at 50% 20%, #000 0%, transparent 78%);
  mask-image: radial-gradient(80% 70% at 50% 20%, #000 0%, transparent 78%);
}
/* 顶部一条极细的品牌渐变高光 */
.hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 81, 214, 0.5), rgba(106, 92, 255, 0.5), transparent);
  z-index: 1;
}
.hero .container,
.page-home .home-banner .container { position: relative; z-index: 2; }

/* —— 标题里的强调字做成渐变（.accent / strong-em） —— */
.hero h1 .accent,
.home-banner h1 .accent,
.hero-trust .accent {
  background: linear-gradient(100deg, var(--color-primary) 0%, var(--color-primary-2) 60%, var(--color-primary-3) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
}

/* —— 徽标胶囊：玻璃质感 + 细渐变描边 —— */
.hero-badge,
.home-banner-eyebrow {
  position: relative;
}
.home-trust-badges li,
.page-trust-badges li {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid var(--color-border-light);
  transition: transform 0.4s var(--ease-silk), box-shadow 0.4s var(--ease-silk), border-color 0.4s var(--ease-silk);
}
.home-trust-badges li:hover,
.page-trust-badges li:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 81, 214, 0.12);
  border-color: rgba(37, 81, 214, 0.28);
}

/* —— 按钮：干净的实色 + 上浮，无渐变位移（去除 hover 闪烁） —— */
.btn { transition: transform 0.25s var(--ease-silk), box-shadow 0.25s var(--ease-silk), background-color 0.25s var(--ease-silk); }
.btn-primary {
  position: relative;
  background: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(37, 81, 214, 0.28);
}
.nav-cta {
  background: var(--color-primary) !important;
  transition: background-color 0.25s var(--ease-silk), box-shadow 0.25s var(--ease-silk) !important;
}
.nav-cta:hover { background: var(--color-primary-dark) !important; box-shadow: 0 8px 20px rgba(37, 81, 214, 0.28); }

/* —— 卡片：渐变流光描边 + 丝滑上浮（保持白底） —— */
.card,
.pillar-card,
.browse-card,
.guide-card,
.blog-card,
.hero-pillar-preview {
  position: relative;
  transition: transform 0.45s var(--ease-silk), box-shadow 0.45s var(--ease-silk), border-color 0.45s var(--ease-silk);
}
.card::after,
.pillar-card::after,
.blog-card::after,
.guide-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(130deg, rgba(37, 81, 214, 0.55), rgba(106, 92, 255, 0.45), rgba(34, 211, 238, 0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.45s var(--ease-silk);
  pointer-events: none;
}
.card:hover,
.pillar-card:hover,
.browse-card:hover,
.guide-card:hover,
.blog-card:hover,
.hero-pillar-preview:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.12);
  border-color: transparent;
}
.card:hover::after,
.pillar-card:hover::after,
.blog-card:hover::after,
.guide-card:hover::after { opacity: 1; }

/* —— pillar 图标：渐变填充，更亮眼 —— */
.pillar-icon {
  background: linear-gradient(135deg, var(--color-primary-soft), rgba(106, 92, 255, 0.12)) !important;
  color: var(--color-primary) !important;
  transition: transform 0.4s var(--ease-silk);
}
.pillar-card:hover .pillar-icon { transform: translateY(-2px) scale(1.05); }

/* —— section-alt：极淡渐变而非死灰，层次更柔 —— */
.section-alt {
  background: linear-gradient(180deg, #f8fafc 0%, #f2f6fd 100%);
}

/* —— section-label：前置小圆点做品牌标识 —— */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.section-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

/* —— 链接箭头微交互（card-link 悬停位移） —— */
.card-link { transition: color var(--transition), gap 0.3s var(--ease-silk); gap: 0.3em; }
.card-link:hover { gap: 0.6em; }

/* —— 导航下划线改渐变 —— */
.site-nav > ul > li > a:not(.nav-cta)::after {
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2)) !important;
  height: 2px !important;
}

/* —— 首页两条路径：加序号水印 + 悬停高亮 —— */
.page-home .home-path-item {
  position: relative;
  transition: transform 0.4s var(--ease-silk);
}
.page-home .home-path-item:hover { transform: translateY(-4px); }

/* —— 联系条：换成品牌渐变浅底 —— */
.home-contact-strip,
.page-home .home-contact-strip {
  background: linear-gradient(120deg, #f2f6fd 0%, #eef1fe 50%, #f0fbff 100%) !important;
  border-top: 1px solid var(--color-border-light);
}

/* —— 滚动渐入更丝滑 —— */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease-silk), transform 0.8s var(--ease-silk);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }

/* —— 图片/媒体：悬停轻微放大更灵动 —— */
.home-banner-media img,
.split-media img,
.card--media .card-thumb img {
  transition: transform 0.7s var(--ease-silk);
}
.home-banner-media:hover img,
.split-media:hover img,
.card--media:hover .card-thumb img { transform: scale(1.04); }

/* —— 选中态配色 —— */
::selection { background: rgba(37, 81, 214, 0.16); color: var(--color-primary-dark); }

/* —— header 滚动后更通透玻璃 —— */
.site-header {
  transition: background 0.4s var(--ease-silk), box-shadow 0.4s var(--ease-silk), border-color 0.4s var(--ease-silk);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.04);
}

/* —— 照顾动效偏好 —— */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn, .card, .pillar-card { transition: none !important; }
}

/* ===================================================================
   灵动层 v6 · 让首页横幅"动起来"（纯 CSS 动画，不改结构）
   - Hero 图缓慢悬浮漂动 + 呼吸光晕
   - 进场渐入上浮
   - 背景光斑缓慢漂移
   =================================================================== */

/* —— 关键帧 —— */
@keyframes floatY {
  0%   { transform: translateY(0); }
  50%  { transform: translateY(-12px); }
  100% { transform: translateY(0); }
}
@keyframes glowPulse {
  0%,100% { opacity: 0.55; transform: translate(-50%, -50%) scale(1); }
  50%     { opacity: 0.9;  transform: translate(-50%, -50%) scale(1.12); }
}
@keyframes orbDrift {
  0%   { transform: translate(0, 0); }
  33%  { transform: translate(24px, -30px); }
  66%  { transform: translate(-18px, 16px); }
  100% { transform: translate(0, 0); }
}
@keyframes heroRise {
  from { opacity: 0; transform: translateY(34px) scale(0.985); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes copyRise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes sheen {
  0%   { transform: translateX(-120%) skewX(-18deg); opacity: 0; }
  18%  { opacity: 0.5; }
  40%  { transform: translateX(220%) skewX(-18deg); opacity: 0; }
  100% { transform: translateX(220%) skewX(-18deg); opacity: 0; }
}

/* —— Hero 图：去掉方框，白边羽化融入页面 + 悬浮漂动 —— */
.home-banner-media {
  position: relative;
  overflow: visible !important;      /* 让图边缘与光晕能溢出 */
  border: none !important;           /* 去掉硬边框 */
  box-shadow: none !important;       /* 去掉方块阴影 */
  background: transparent !important;
  border-radius: 0 !important;
  aspect-ratio: 3 / 2;
  animation: floatY 7s var(--ease-silk) infinite;
  will-change: transform;
}
/* 图片背后的彩色呼吸光晕 */
.home-banner-media::before {
  content: "";
  position: absolute;
  top: 52%;
  left: 50%;
  width: 88%;
  height: 82%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(106, 92, 255, 0.30), rgba(37, 81, 214, 0.15) 45%, transparent 72%);
  filter: blur(52px);
  animation: glowPulse 6s ease-in-out infinite;
  pointer-events: none;
}
/* 图片本身：正片叠底让白底变透明，图形无缝融入背景光晕（关键） */
.home-banner-media img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
  mix-blend-mode: multiply;          /* 白底→透明，只留网络图形 */
  -webkit-mask-image: radial-gradient(125% 120% at 50% 48%, #000 70%, transparent 96%);
  mask-image: radial-gradient(125% 120% at 50% 48%, #000 70%, transparent 96%);
}

/* —— Hero 背景漂浮光斑（灵动的关键） —— */
.page-home .home-banner .container { position: relative; }
.page-home .home-banner .container::before,
.page-home .home-banner .container::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
}
.page-home .home-banner .container::before {
  width: 320px; height: 320px;
  top: -60px; right: 8%;
  background: radial-gradient(circle, rgba(37, 81, 214, 0.1), transparent 70%);
  animation: orbDrift 16s ease-in-out infinite;
}
.page-home .home-banner .container::after {
  width: 260px; height: 260px;
  bottom: -40px; left: 2%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.08), transparent 70%);
  animation: orbDrift 20s ease-in-out infinite reverse;
}

/* —— 首屏进场动画（文案与图先后浮现） —— */
.page-home .home-banner-copy { animation: copyRise 0.9s var(--ease-silk) both; }
.page-home .home-banner-copy > * { animation: copyRise 0.8s var(--ease-silk) both; }
.page-home .home-banner-eyebrow { animation-delay: 0.05s; }
.page-home .home-banner h1     { animation-delay: 0.14s; }
.page-home .home-banner-lead   { animation-delay: 0.24s; }
.page-home .home-trust-badges  { animation-delay: 0.34s; }
.page-home .home-banner-actions{ animation-delay: 0.44s; }
.page-home .home-banner-media  { animation: heroRise 1s var(--ease-silk) 0.2s both, floatY 7s var(--ease-silk) 1.2s infinite; }

/* —— 信任徽章：进场后逐个轻微上浮已在 v5，这里加载入错峰 —— */
.page-home .home-trust-badges li { animation: copyRise 0.7s var(--ease-silk) both; }
.page-home .home-trust-badges li:nth-child(1) { animation-delay: 0.40s; }
.page-home .home-trust-badges li:nth-child(2) { animation-delay: 0.48s; }
.page-home .home-trust-badges li:nth-child(3) { animation-delay: 0.56s; }

/* —— 按钮：主 CTA 轻微呼吸引导注意 —— */
@keyframes ctaBreath {
  0%,100% { box-shadow: 0 1px 2px rgba(15,23,42,0.08), 0 2px 8px rgba(37,81,214,0.18); }
  50%     { box-shadow: 0 1px 2px rgba(15,23,42,0.08), 0 8px 22px rgba(37,81,214,0.34); }
}
.page-home .home-banner-actions .btn-primary { animation: ctaBreath 3.6s ease-in-out 1.6s infinite; }

/* —— 尊重减少动效偏好 —— */
@media (prefers-reduced-motion: reduce) {
  .home-banner-media,
  .home-banner-media::before,
  .home-banner-media::after,
  .page-home .home-banner .container::before,
  .page-home .home-banner .container::after,
  .page-home .home-banner-copy,
  .page-home .home-banner-copy > *,
  .page-home .home-banner-media,
  .page-home .home-trust-badges li,
  .page-home .home-banner-actions .btn-primary {
    animation: none !important;
  }
}

/* ===================================================================
   Hero 背景数据流线底图 v7 · 用一张生成的流线图铺满 hero 底部，极淡融入
   （图放在 images/site/hero-flow-bg.jpg，白底流线，multiply 融进背景）
   =================================================================== */
.home-banner { position: relative; }
/* 流线底图：铺满 hero，靠混合与遮罩融入；右侧偏浓、左侧文案区大幅淡出 */
.home-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;                       /* 背景之上、内容之下 */
  pointer-events: none;
  background-image: url("../images/site/hero-flow-bg.jpg");
  background-repeat: no-repeat;
  background-position: left center;
  background-size: cover;
  opacity: 0.6;                     /* 整体压淡 */
  mix-blend-mode: multiply;         /* 白底变透明，只留流线 */
  /* 仅柔化顶部（避开导航区），全宽显示图片左半段流线 */
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 22%, #000 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 22%, #000 100%);
}
/* 文案侧再铺一层白纱，确保文字始终清晰锐利 */
.home-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 30%, rgba(255,255,255,0.15) 55%, rgba(255,255,255,0) 72%);
}
/* 内容层级保证在流线与白纱之上 */
.page-home .home-banner-grid { position: relative; z-index: 2; }
.page-home .home-banner-copy { position: relative; z-index: 2; }

/* 缓缓漂移，制造"数据流动"的呼吸感（幅度极小） */
@media (prefers-reduced-motion: no-preference) {
  .home-banner::after {
    animation: flowBgDrift 26s ease-in-out infinite alternate;
  }
}
@keyframes flowBgDrift {
  from { background-position: left center; }
  to   { background-position: 8% center; }
}

/* ===================================================================
   GEO 闭环流程图 v8 · 纯 CSS/SVG，替代深色仪表盘图（方法论可视化）
   内在事实 → 外在呈现 → 第三方印证 → 交叉验证 → AI 优先推荐（成环）
   =================================================================== */
.geo-loop-figure {
  margin: 0;
  border: none;
  background: transparent;
  box-shadow: none;
  aspect-ratio: auto !important;   /* 取消 4:3 限制，随内容自适应高度 */
  overflow: visible !important;    /* 不裁切底部（闭环强化行完整显示） */
  border-radius: 0;
}
/* 让该行在栅格中顶部对齐，避免居中造成上下留白/错位 */
.home-about-split:has(.geo-loop-figure) { align-items: stretch; }
.geo-loop-figure .geo-loop { height: 100%; }

.geo-loop {
  position: relative;
  padding: 1.75rem 1.75rem 1.5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #ffffff 0%, #f7f9ff 100%);
  border: 1px solid var(--color-border-light);
  box-shadow: 0 18px 46px rgba(37, 81, 214, 0.1), 0 2px 8px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}
/* 顶部品牌渐变高光条 */
.geo-loop::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2), var(--color-primary-3));
}

/* 顶部核心徽标 */
.geo-loop-core {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--color-border);
}
.geo-loop-core b {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.geo-loop-core em {
  font-style: normal;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

/* 步骤列表：左侧竖向渐变连接线 */
.geo-loop-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.geo-loop-steps::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, #5b8def, var(--color-primary-2) 55%, var(--color-primary));
  opacity: 0.5;
}

.geo-step {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.62rem 0;
  /* 滚动进场：默认下沉，随 .is-visible 依次点亮（见 reveal 逻辑） */
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease-silk), transform 0.6s var(--ease-silk);
  transition-delay: calc(var(--i) * 0.12s);
}
.reveal.is-visible .geo-step,
.is-visible .geo-step,
.geo-loop-figure.is-visible .geo-step { opacity: 1; transform: none; }

.geo-step-ico {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  box-shadow: 0 0 0 5px #fff, 0 6px 14px rgba(37,81,214,0.22);  /* 白描边盖住连接线 + 立体投影 */
  transition: transform 0.35s var(--ease-silk), box-shadow 0.35s var(--ease-silk);
}
.geo-step-ico svg { stroke-width: 1.7; }
.geo-step:hover .geo-step-ico {
  transform: scale(1.1) rotate(-3deg);
  box-shadow: 0 0 0 5px #fff, 0 10px 22px rgba(37,81,214,0.32);
}
/* 逐步加深的品牌色阶，营造"递进"层次感 */
.geo-step:nth-child(1) .geo-step-ico { background: linear-gradient(135deg, #5b8def, #6a5cff); }
.geo-step:nth-child(2) .geo-step-ico { background: linear-gradient(135deg, #4a7bed, #5f6cf2); }
.geo-step:nth-child(3) .geo-step-ico { background: linear-gradient(135deg, #3f6ae6, #5a5cf0); }
.geo-step:nth-child(4) .geo-step-ico { background: linear-gradient(135deg, #2f57dd, #4f4ee8); }
.geo-step-txt { display: flex; flex-direction: column; line-height: 1.35; }
.geo-step-txt b { font-size: 0.98rem; font-weight: 700; color: var(--color-text); letter-spacing: -0.01em; }
.geo-step-txt em { font-style: normal; font-size: 0.82rem; color: var(--color-muted); }

/* 末步高亮：AI 推荐是结果 */
.geo-step:last-child .geo-step-ico {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
}

/* 成环提示：最后一步下方一行"循环强化" */
.geo-loop-steps::after {
  content: "闭环强化 · 持续被 AI 采信推荐";
  display: block;
  margin: 0.85rem 0 0 3.5rem;
  padding-top: 0.6rem;
  font-size: 0.78rem;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-top: 1px dashed var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
  .geo-step { opacity: 1; transform: none; transition: none; }
}

/* ===================================================================
   两条路径 · Tab 卡片 v9（参考微盟行业案例区，纯 CSS radio 切换，无 JS）
   居中标题 + 胶囊 Tab + 左文右图大卡片；爬虫可读全部内容，GEO 友好
   =================================================================== */
.path-tabs { max-width: 1080px; margin: 0 auto; }
.path-tabs > input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }

/* Tab 导航：胶囊组 */
.path-tab-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.path-tab-nav label {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.path-tab-nav label:hover { color: var(--color-primary); border-color: rgba(37,81,214,0.4); }

/* 选中的 Tab 高亮（对应 radio: checked） */
#path-tab-1:checked ~ .path-tab-nav label[for="path-tab-1"],
#path-tab-2:checked ~ .path-tab-nav label[for="path-tab-2"] {
  color: #fff;
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-2));
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(37,81,214,0.28);
  transform: translateY(-1px);
}

/* 面板容器 */
.path-panels { position: relative; }
.path-panel {
  display: none;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(1.75rem, 3vw, 2.75rem);
  background: linear-gradient(150deg, #ffffff 0%, #f5f8ff 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(37, 81, 214, 0.1), 0 2px 8px rgba(15, 23, 42, 0.04);
  animation: panelFade 0.5s var(--ease-silk);
}
/* 根据选中 radio 显示对应 panel */
#path-tab-1:checked ~ .path-panels .path-panel[data-panel="1"],
#path-tab-2:checked ~ .path-panels .path-panel[data-panel="2"] {
  display: grid;
}
@keyframes panelFade {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.path-panel-body { min-width: 0; }
.path-badge {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.3rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}
.path-panel-body h3 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.3rem, 2.4vw, 1.65rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.path-panel-body > p {
  margin: 0 0 1.25rem;
  color: var(--color-text-secondary);
  font-size: 0.975rem;
  line-height: 1.75;
}
.path-points {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.path-points li {
  position: relative;
  padding-left: 1.9rem;
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}
.path-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.05em;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%232551d6' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / 12px 12px no-repeat,
    var(--color-primary-soft);
}

.path-panel-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.1);
  border: 1px solid var(--color-border-light);
}
.path-panel-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  transition: transform 0.7s var(--ease-silk);
}
.path-panel-media:hover img { transform: scale(1.04); }

/* 移动端：图上文下堆叠 */
@media (max-width: 860px) {
  .path-panel { grid-template-columns: 1fr; }
  .path-panel-media { order: -1; }
  .path-tab-nav label { padding: 0.5rem 1rem; font-size: 0.875rem; }
}

@media (prefers-reduced-motion: reduce) {
  .path-panel { animation: none; }
  .path-panel-media img { transition: none; }
}

/* ===================================================================
   「GEO 是什么」区背景底纹 v10 · 极淡底图（出图后放 images/site/section-bg.jpg）
   底纹很淡且四角分布，中间留白保证正文与流程图清晰
   =================================================================== */
#theory {
  position: relative;
  overflow: hidden;
  background: #ffffff !important;
}
/* 浅色流线底图：顶部本身向白色渐隐，可无缝衔接上方区块 */
#theory::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("../images/site/light-bg.jpg");
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
  opacity: 1;
}
#theory > .container { position: relative; z-index: 1; }

/* 「两条路径」区用深色底图，与浅色的「GEO 是什么」「底部案例」形成深浅交替 */
#paths {
  position: relative;
  overflow: hidden;
  background: #ffffff !important;
}
#paths::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("../images/site/updates-bg.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: 0.5;                     /* 压淡，避免太浓太突兀 */
}
/* 顶部与底部叠一层白色渐隐，让深色底图柔和过渡、不闷 */
#paths::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255,255,255,0.35) 22%, rgba(255,255,255,0.35) 78%, #ffffff 100%);
}
#paths > .container { position: relative; z-index: 1; }

/* ===================================================================
   全站统一 v11 · 内页 page-hero 铺极淡 section-bg 底纹（不改结构与图位置）
   仅新增背景层，不影响 .page-hero-content / .page-hero-media 布局与位置
   =================================================================== */
.page-hero { position: relative; overflow: hidden; }
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("../images/site/section-bg.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: 0.55;
  mix-blend-mode: multiply;
  /* 左侧文案区渐隐，保证标题清晰 */
  -webkit-mask-image: linear-gradient(90deg, transparent 4%, rgba(0,0,0,0.25) 40%, #000 80%);
  mask-image: linear-gradient(90deg, transparent 4%, rgba(0,0,0,0.25) 40%, #000 80%);
}
/* 内容层级保证在底纹之上（不改变原有栅格与位置） */
.page-hero > .container { position: relative; z-index: 2; }

/* 了解页 hero：蓝白流线横幅（左流线 / 右留白） */
.page-hero--about::after {
  background-image: url("../images/site/about-hero-bg.jpg");
  background-position: left center;
  background-size: cover;
  opacity: 0.9;
  mix-blend-mode: multiply;
  -webkit-mask-image: none;
  mask-image: none;
}
.page-hero--about::before {
  content: "";
  display: block;
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,0.78) 0%, rgba(255,255,255,0.45) 34%, rgba(255,255,255,0.1) 58%, transparent 76%);
}

/* ===================================================================
   底部「案例/新闻/产品」区背景 v12 · 浅色底图（与深色两条路径区交替）
   =================================================================== */
#updates {
  position: relative;
  overflow: hidden;
  background: #ffffff !important;
}
#updates {
  background: #ffffff !important;
}
#updates::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("../images/site/light-bg.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: 1;
}
#updates > .container { position: relative; z-index: 1; }

/* ===================================================================
   Bento 便当盒卡片 v13（参考微盟：内容装进精致白卡，层次+呼吸）
   =================================================================== */
.bento-grid {
  gap: 1.25rem;
  align-items: start;
}
.bento-card {
  position: relative;
  background: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.75rem 1.5rem;
  box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 12px 30px rgba(15,23,42,0.06);
  transition: transform 0.45s var(--ease-silk), box-shadow 0.45s var(--ease-silk), border-color 0.45s var(--ease-silk);
  overflow: hidden;
}
/* 顶部一条品牌渐变细线（微盟同款精致细节） */
.bento-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2), var(--color-primary-3));
  opacity: 0;
  transition: opacity 0.45s var(--ease-silk);
}
.bento-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 46px rgba(37, 81, 214, 0.14);
  border-color: rgba(37, 81, 214, 0.2);
}
.bento-card:hover::before { opacity: 1; }

/* 卡内标题头收紧，与列表拉开间距 */
.bento-card .section-header--compact {
  margin: 0 0 1.1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--color-border-light);
}
.bento-card .section-header--compact h2 {
  font-size: 1.2rem;
}

/* 列表项：轻量行样式，避免「浮白卡」过重 */
.bento-card .home-link-list a {
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.9rem;
  margin: 0 -0.25rem;
  transition: background 0.25s var(--ease-silk), transform 0.25s var(--ease-silk);
  background: transparent;
  box-shadow: none;
}
.bento-card .home-link-list a:hover {
  background: rgba(255, 255, 255, 0.55);
  transform: none;
}

/* 地区 / 路径标签：小胶囊，替代大写灰字 */
.bento-card .home-link-meta .home-label {
  display: inline-flex;
  align-items: center;
  margin: 0;
  padding: 0.15rem 0.55rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: none;
  color: #1d4ed8;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 9999px;
  line-height: 1.4;
}
.bento-card .home-link-title {
  color: var(--color-text);
  font-weight: 500;
}
.bento-card .home-link-list a:hover .home-link-title {
  color: var(--color-primary);
}

@media (max-width: 900px) {
  .bento-grid { gap: 1rem; }
}

/* ===================================================================
   交叉验证：并列信源列表（编号节点 + 竖向连线）
   =================================================================== */
.geo-flywheel {
  list-style: none;
  counter-reset: fw;
  padding-left: 0;
  max-width: 46rem;
  margin-inline: auto;
  position: relative;
}

.geo-flywheel-result,
.page-intro.geo-flywheel-result {
  margin: 1.75rem 0 0;
  margin-inline: 0;
  max-width: none;
  padding: 0.35rem 0 0.35rem 0.85rem;
  background: none;
  border-left: 2px solid var(--color-primary);
  border-radius: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .geo-flywheel-result,
  .page-intro.geo-flywheel-result {
    white-space: normal;
  }
}
.geo-flywheel li {
  counter-increment: fw;
  position: relative;
  padding: 0 0 1.5rem 3.5rem;
  margin: 0;
  line-height: 1.7;
  color: var(--color-text-secondary);
}
.geo-flywheel li::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 2.1rem;
  bottom: -0.2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-2));
  opacity: 0.3;
}
.geo-flywheel li:last-child { padding-bottom: 0; }
.geo-flywheel li:last-child::before { display: none; }
.geo-flywheel li::after {
  content: counter(fw);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 0 0 4px #fff, 0 4px 10px rgba(37,81,214,0.25);
}
.geo-flywheel li strong { color: var(--color-text); font-weight: 700; }
.geo-flywheel li:last-child::after {
  background: linear-gradient(135deg, #1e40b0, var(--color-primary-2));
  box-shadow: 0 0 0 4px #fff, 0 6px 14px rgba(37,81,214,0.4);
}
.section-alt .geo-flywheel li::after { box-shadow: 0 0 0 4px var(--color-bg-muted), 0 4px 10px rgba(37,81,214,0.25); }

/* ===================================================================
   P3 · GEO 关键词跑马灯 v15（纯 CSS 无缝横向滚动，氛围条）
   =================================================================== */
.kw-marquee {
  position: relative;
  overflow: hidden;
  width: min(100% - 3rem, var(--max-width));   /* 限制在内容区宽度，居中 */
  margin: 2.75rem auto;
  padding: 1.1rem 0;
  background: linear-gradient(90deg, #f4f7ff, #eef2fe 50%, #f0fbff);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  box-shadow: 0 2px 12px rgba(37,81,214,0.05);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.kw-track {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  white-space: nowrap;
  animation: kwScroll 38s linear infinite;
  will-change: transform;
}
.kw-marquee:hover .kw-track { animation-play-state: paused; }
.kw-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(37,81,214,0.06);
}
.kw-chip::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  flex-shrink: 0;
}
@keyframes kwScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .kw-track { animation: none; flex-wrap: wrap; white-space: normal; justify-content: center; }
}

/* ===================================================================
   P2 · 双层卡升级 v16（浅灰外壳 + 白色内卡）
   给带 .bento-card / .card--layered 的容器营造"卡里有卡"层次
   =================================================================== */
/* 便当盒卡片：统一白底轻边框，去掉 nth-child 纯色渐变填色 */
.bento-card {
  background: var(--color-bg-elevated);
}
.bento-card:nth-child(1),
.bento-card:nth-child(2),
.bento-card:nth-child(3),
.bento-card:nth-child(4) {
  background: var(--color-bg-elevated);
}

.bento-card .home-link-list {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}
.bento-card .home-link-list a:hover { background: rgba(255,255,255,0.55); }

/* 通用双层卡工具类：浅灰外壳容器 */
.card--layered {
  background: linear-gradient(160deg, #f7f9ff 0%, #eef2fb 100%) !important;
  border: 1px solid var(--color-border-light);
}
.card--layered > * { background: transparent; }

/* ===================================================================
   P4 · 滚动进场动画补充选择器（内页 page-content / compare / 步骤）
   =================================================================== */

/* ===================================================================
   深色 CTA 点睛卡片 v17（微盟式：深色只做局部强调，浮在浅色区上）
   =================================================================== */
.cta-section { padding: 4rem 0 5rem; background: #ffffff; }
.cta-dark {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  padding: clamp(2rem, 4vw, 3.25rem) clamp(1.75rem, 4vw, 3.5rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #0f172a 0%, #1a2a5c 55%, #2551d6 130%);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
}
/* 卡内右上柔和光晕 */
.cta-dark-glow {
  position: absolute;
  top: -40%;
  right: -10%;
  width: 60%;
  height: 180%;
  background: radial-gradient(circle at center, rgba(106,92,255,0.5), transparent 65%);
  filter: blur(30px);
  pointer-events: none;
}
.cta-dark-body { position: relative; z-index: 1; max-width: 40rem; }
.cta-dark-eyebrow {
  display: inline-block;
  margin-bottom: 0.7rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #9db4ff;
}
.cta-dark-body h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #ffffff;
}
.cta-dark-body p {
  margin: 0;
  font-size: 0.975rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.78);
}
.cta-dark-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.9rem;
  flex-shrink: 0;
}
/* 深底上的主按钮用白底，反差醒目（需 !important，否则被末尾 .btn-primary 蓝底覆盖） */
.cta-dark .btn-primary {
  background: #ffffff !important;
  color: #1d4ed8 !important;
  border: none !important;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22) !important;
}
.cta-dark .btn-primary:hover {
  background: #eef2fe !important;
  color: #1e3a8a !important;
  transform: translateY(-2px);
}
.cta-dark-link {
  color: rgba(255,255,255,0.82);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color var(--transition), gap 0.3s var(--ease-silk);
}
.cta-dark-link:hover { color: #ffffff; }

@media (max-width: 720px) {
  .cta-dark { flex-direction: column; align-items: flex-start; }
  .cta-dark-actions { width: 100%; }
  .cta-dark-actions .btn { width: 100%; }
}

/* ===================================================================
   思路B · 中小企业「信息源一致性」CSS 示意面板（替代配图，真实可控）
   =================================================================== */
.path-panel-ui {
  border: none !important;
  box-shadow: none !important;
  background: transparent !important;
  overflow: visible !important;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ui-panel {
  width: 100%;
  max-width: 430px;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(37,81,214,0.05), transparent 60%),
    #ffffff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(37, 81, 214, 0.14), 0 2px 8px rgba(15,23,42,0.05);
  padding: 1.5rem 1.55rem 1.35rem;
  position: relative;
  overflow: hidden;
}
.ui-panel::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2), var(--color-primary-3));
}
.ui-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.ui-panel-title { display: block; font-size: 1rem; font-weight: 700; color: var(--color-text); letter-spacing: -0.01em; }
.ui-panel-sub { display: block; margin-top: 0.15rem; font-size: 0.75rem; color: var(--color-muted); }
.ui-panel-badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: #1a8f5c;
  background: rgba(34,160,107,0.1);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.ui-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: #1a8f5c; animation: uiPulse2 2s ease-in-out infinite; }
@keyframes uiPulse2 { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* 一致性进度条 */
.ui-panel-meter { margin: 0 0 1.1rem; }
.ui-meter-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.4rem; font-size: 0.78rem; color: var(--color-muted); }
.ui-meter-top strong { font-size: 0.95rem; font-weight: 700; color: var(--color-primary); }
.ui-meter-bar { height: 7px; border-radius: var(--radius-full); background: var(--color-bg-muted); overflow: hidden; }
.ui-meter-bar i {
  display: block; height: 100%; width: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-2));
  animation: uiMeter 1.4s var(--ease-silk) 0.3s forwards;
}
@keyframes uiMeter { to { width: var(--w); } }

.ui-panel-rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.ui-panel-rows li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0.85rem;
  background: linear-gradient(135deg, #f7f9ff, #eef2fd);
  border: 1px solid rgba(37,81,214,0.06);
  border-radius: var(--radius);
  font-size: 0.875rem;
  opacity: 0;
  transform: translateY(8px);
  animation: uiRowIn 0.5s var(--ease-silk) forwards;
  animation-delay: calc(0.5s + var(--d) * 0.14s);
  transition: transform 0.25s var(--ease-silk), box-shadow 0.25s var(--ease-silk);
}
.ui-panel-rows li:hover { transform: translateX(3px); box-shadow: 0 4px 14px rgba(37,81,214,0.1); }
@keyframes uiRowIn { to { opacity: 1; transform: none; } }

/* 渠道图标（线性 SVG，data-ic 区分） */
.ui-row-ico {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: #fff center / 16px 16px no-repeat;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 1px 2px rgba(15,23,42,0.05);
}
.ui-row-ico[data-ic="web"]   { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232551d6' stroke-width='1.7'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M3 12h18M12 3c2.5 2.5 2.5 15 0 18M12 3c-2.5 2.5-2.5 15 0 18'/%3E%3C/svg%3E"); }
.ui-row-ico[data-ic="faq"]   { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232551d6' stroke-width='1.7' stroke-linecap='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3Cpath d='M9.5 9.5a2.5 2.5 0 1 1 3 2.5v1'/%3E%3C/svg%3E"); }
.ui-row-ico[data-ic="shop"]  { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232551d6' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 4h16l-1.5 5H5.5z'/%3E%3Cpath d='M6 9v9h12V9'/%3E%3Cpath d='M9 18v-4h6v4'/%3E%3C/svg%3E"); }
.ui-row-ico[data-ic="third"] { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232551d6' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='7' cy='7' r='3'/%3E%3Ccircle cx='17' cy='17' r='3'/%3E%3Cpath d='M10 7h7v7'/%3E%3C/svg%3E"); }

.ui-src { flex: 1; color: var(--color-text-secondary); font-weight: 500; }
.ui-ok {
  display: inline-flex; align-items: center; gap: 0.3rem;
  color: #1a8f5c; font-weight: 700; font-size: 0.78rem;
  background: rgba(34,160,107,0.1);
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-full);
}
.ui-ok::before {
  content: "";
  width: 13px; height: 13px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231a8f5c' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
}
.ui-panel-foot {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--color-border);
  font-size: 0.82rem;
  color: var(--color-primary);
  font-weight: 600;
}
.ui-foot-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
  animation: uiPulse 2.4s ease-in-out infinite;
}
@keyframes uiPulse {
  0%,100% { box-shadow: 0 0 0 3px var(--color-primary-soft); }
  50%     { box-shadow: 0 0 0 6px rgba(37,81,214,0.08); }
}
@media (prefers-reduced-motion: reduce) {
  .ui-foot-dot, .ui-badge-dot { animation: none; }
  .ui-meter-bar i { animation: none; width: var(--w); }
  .ui-panel-rows li { opacity: 1; transform: none; animation: none; }
}

/* ===================================================================
   Hero 右侧 · AI 模型环绕图 v18（透明背景，浮在浅色 hero 上）
   =================================================================== */
.ai-orbit {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}
.ai-orbit-ring {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px dashed rgba(37, 81, 214, 0.2);
}
.ai-orbit-ring--1 { width: 55%; height: 55%; animation: orbitSpin 45s linear infinite; }
.ai-orbit-ring--2 { width: 100%; height: 100%; animation: orbitSpin 70s linear infinite reverse; }
@keyframes orbitSpin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.ai-orbit-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 26%; height: 26%;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
  box-shadow: 0 14px 34px rgba(37, 81, 214, 0.35), 0 0 0 10px rgba(37,81,214,0.06);
  z-index: 3;
}
.ai-orbit-core svg { width: 58%; height: 58%; }
.ai-orbit-core::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37,81,214,0.35);
  animation: corePulse 2.6s ease-out infinite;
}
@keyframes corePulse {
  0%   { transform: scale(1); opacity: 0.7; }
  70%  { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}

.ai-orbit-nodes { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; z-index: 2; }
.ai-orbit-nodes li {
  position: absolute;
  top: 50%; left: 50%;
  width: 80px;
  margin: -40px 0 0 -40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  transform: rotate(calc(var(--i) * 60deg)) translate(0, -155px) rotate(calc(var(--i) * -60deg));
  animation: nodeIn 0.6s var(--ease-silk) both;
  animation-delay: calc(0.3s + var(--i) * 0.1s);
}
@keyframes nodeIn { from { opacity: 0; transform: rotate(calc(var(--i) * 60deg)) translate(0, -155px) rotate(calc(var(--i) * -60deg)) scale(0.6); } }
.ai-orbit-nodes li img {
  width: 50px; height: 50px;
  border-radius: 14px;
  background: #fff;
  padding: 7px;
  object-fit: contain;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
  transition: transform 0.35s var(--ease-silk), box-shadow 0.35s var(--ease-silk);
}
.ai-orbit-nodes li:hover img {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 12px 26px rgba(37, 81, 214, 0.28);
}
.ai-orbit-nodes li em {
  font-style: normal;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: rgba(255,255,255,0.7);
  padding: 0.05rem 0.45rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .ai-orbit { max-width: 340px; margin-top: 1.5rem; }
  .ai-orbit-nodes li { transform: rotate(calc(var(--i) * 60deg)) translate(0, -130px) rotate(calc(var(--i) * -60deg)); }
}
@media (prefers-reduced-motion: reduce) {
  .ai-orbit-ring, .ai-orbit-core::after, .ai-orbit-nodes li { animation: none; }
}

/* ===================================================================
   AI 看板玻璃托底 v19（生成的玻璃板作背景，卡片浮在其上）
   =================================================================== */
.ai-stage {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ai-stage .ai-board { margin: 0; }
@media (max-width: 900px) {
  .ai-stage { margin-top: 1.5rem; }
}

/* ===================================================================
   AI 看板玻璃质感强化 v20（边缘高光 + 背景模糊 + 浮起光影 + 缓浮动画）
   =================================================================== */
.ai-board {
  position: relative;
  /* 通透但有存在感：白底够实，卡片立在背景前，靠高光体现玻璃感 */
  background:
    linear-gradient(150deg, rgba(255,255,255,0.94), rgba(246,248,255,0.88)) !important;
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border: 1px solid transparent !important;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 -1px 0 rgba(255,255,255,0.3) inset,
    0 34px 70px -24px rgba(37, 81, 214, 0.32),
    0 12px 28px rgba(15, 23, 42, 0.08) !important;
  animation: aiBoardFloat 6.5s var(--ease-silk) infinite;
}
/* 渐变描边高光（玻璃边缘反光） */
.ai-board::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(255,255,255,0.95), rgba(255,255,255,0.1) 40%, rgba(106,92,255,0.35) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}
/* 顶部一道柔和均匀高光（避免左右不均的斜反光） */
.ai-board::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 18%);
  z-index: 1;
}
@keyframes aiBoardFloat {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-9px); }
}

/* 底部柔和光影托盘（不用图，纯阴影做"浮起"感） */
.ai-stage { position: relative; }
.ai-stage::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2%;
  width: 74%;
  height: 34px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(37,81,214,0.22), transparent 72%);
  filter: blur(14px);
  z-index: -1;
  animation: aiShadowPulse 6.5s var(--ease-silk) infinite;
}
@keyframes aiShadowPulse {
  0%,100% { opacity: 0.7; width: 74%; }
  50%     { opacity: 0.45; width: 66%; }
}

/* 进度条加流光 */
.ai-metric-bar i {
  position: relative;
  overflow: hidden;
}
.ai-metric-bar i::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.7), transparent);
  animation: aiMeterSheen 2.8s ease-in-out 1.6s infinite;
}
@keyframes aiMeterSheen {
  0% { transform: translateX(-100%); }
  60%,100% { transform: translateX(320%); }
}

/* 头像行加一点精致：hover 时整排轻微，图标本身已有 hover */
.ai-logo-row img { background: rgba(255,255,255,0.95); }

@media (prefers-reduced-motion: reduce) {
  .ai-board, .ai-stage::after, .ai-metric-bar i::after { animation: none; }
}

/* 保证卡片内容在玻璃反光层之上 */
.ai-board-head, .ai-board-body, .ai-board-foot { position: relative; z-index: 3; }

/* 统一玻璃：头/尾/行内块透明，整卡一致通透（去掉半白半透的拼接感） */
.ai-board-head { background: transparent !important; border-bottom-color: rgba(255,255,255,0.5) !important; }
.ai-board-foot { background: transparent !important; border-top-color: rgba(255,255,255,0.5) !important; }
.ai-board-rows li { background: linear-gradient(135deg, #f5f8ff, #eef2fd) !important; border: 1px solid rgba(37,81,214,0.06); }
.ai-logo-row img { background: #fff; }


/* ══════════════════════════════════════
   Aixcont / frontend 风格对齐
   毛玻璃顶栏 · 石板灰胶囊导航 · Brand Blue CTA
   ══════════════════════════════════════ */

.site-header {
  background: rgba(255, 255, 255, 0.8) !important;
  backdrop-filter: blur(24px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
  border-bottom: 1px solid #f1f5f9 !important;
  box-shadow: none !important;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92) !important;
  border-bottom-color: #f1f5f9 !important;
  box-shadow: 0 4px 24px -4px rgba(0, 0, 0, 0.06) !important;
}

.header-inner {
  min-height: 68px !important;
  gap: 1.25rem;
}

.logo {
  gap: 0.5rem;
  transition: opacity 0.2s ease;
  margin-right: 0.5rem;
}

.logo:hover { opacity: 0.8; }

.logo-icon {
  width: auto !important;
  height: 40px !important;
  max-width: min(200px, 42vw);
  border-radius: 0;
  box-shadow: none;
}

.logo-text {
  display: none !important;
  font-size: 1.375rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.02em !important;
  color: #000 !important;
}

.logo-accent { color: #000 !important; }

.site-nav > ul {
  gap: 0.25rem !important;
}

.site-nav > ul > li > a:not(.nav-cta) {
  position: relative;
  padding: 0.5rem 1rem !important;
  color: #0f172a !important;
  font-size: 0.9375rem !important;
  font-weight: 700 !important;
  letter-spacing: 0;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  -webkit-font-smoothing: auto;
  transition: color 0.2s ease !important;
}

.site-nav > ul > li > a:not(.nav-cta)::after {
  display: block !important;
  content: "";
  position: absolute;
  bottom: 0.15rem;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.site-nav > ul > li > a:not(.nav-cta):hover,
.has-sub:hover > a:not(.nav-cta),
.has-sub.is-mega-open > a:not(.nav-cta) {
  color: #0f172a !important;
  font-weight: 700 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.site-nav > ul > li > a:not(.nav-cta):hover::after,
.has-sub:hover > a:not(.nav-cta)::after,
.has-sub.is-mega-open > a:not(.nav-cta)::after {
  width: calc(100% - 1.75rem);
}

.site-nav > ul > li > a.active:not(.nav-cta) {
  color: #0f172a !important;
  background: transparent !important;
  box-shadow: none !important;
  font-weight: 700 !important;
}

.site-nav > ul > li > a.active:not(.nav-cta)::after {
  width: 0 !important;
}

.nav-cta {
  margin-left: 0.75rem !important;
  padding: 0 !important;
  height: 36px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding-left: 1.25rem !important;
  padding-right: 1.25rem !important;
  font-size: 0.8125rem !important;
  font-weight: 700 !important;
  letter-spacing: 0 !important;
  border-radius: 6px !important;
  background: #3b82f6 !important;
  color: #fff !important;
  box-shadow: 0 4px 14px -4px rgba(59, 130, 246, 0.35) !important;
  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease !important;
  filter: none !important;
}

.nav-cta:hover {
  color: #fff !important;
  background: #2563eb !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px -4px rgba(59, 130, 246, 0.45) !important;
  filter: none !important;
}

.site-header.mega-open,
.site-header:has(.has-sub.is-mega-open),
.site-header:has(.has-sub:hover),
.site-header:has(.has-sub:focus-within) {
  border-bottom-color: transparent !important;
  box-shadow: none !important;
}

.site-nav .mega-panel {
  --mega-intro-w: 480px;
  --mega-panel-h: 360px;
  top: 100% !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
  padding: 0 !important;
  border: none !important;
  border-top: none !important;
  border-radius: 0 !important;
  background-color: #ffffff !important;
  background-image: none !important;
  box-shadow: 0 22px 44px -18px rgba(15, 23, 42, 0.18) !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-nav .mega-panel::after {
  content: "" !important;
  position: absolute !important;
  left: 0 !important;
  top: 0 !important;
  bottom: 0 !important;
  z-index: 0 !important;
  height: auto !important;
  width: calc((100% - min(100% - 2.5rem, var(--max-width))) / 2 + var(--mega-intro-w)) !important;
  pointer-events: none !important;
  background-color: #fff !important;
  background-image:
    linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.4) 0%,
      rgba(255, 255, 255, 0.55) 35%,
      rgba(255, 255, 255, 0.88) 68%,
      #ffffff 88%,
      #ffffff 100%
    ),
    url("../images/site/mega-bg.png") !important;
  background-repeat: no-repeat !important;
  background-position: 0 0, left center !important;
  background-size: 100% 100%, cover !important;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%) !important;
  mask-image: linear-gradient(90deg, #000 0%, #000 58%, transparent 100%) !important;
}

.mega-intro {
  background: transparent !important;
  background-image: none !important;
}

.mega-panel-inner {
  height: auto !important;
  min-height: var(--mega-panel-h, 300px) !important;
  grid-template-columns: var(--mega-intro-w, 480px) minmax(0, 1fr) !important;
  grid-template-rows: minmax(240px, 1fr) auto !important;
  padding: 0 !important;
  align-items: stretch !important;
  gap: 0 4rem !important;
  z-index: 1;
}

.mega-panel-foot {
  grid-column: 1 / -1 !important;
  grid-row: 2 !important;
  background: transparent !important;
  border-top: 1px solid rgba(226, 232, 240, 0.9) !important;
  padding: 0.85rem 0 1.1rem !important;
}

.mega-panel-foot-inner {
  padding-left: 5.5rem;
}

.site-nav .mega-col a {
  border-bottom: none !important;
  border-radius: 0 !important;
  padding: 0.4rem 0 !important;
  font-size: 0.9rem !important;
  font-weight: 600;
  color: #475569 !important;
  background: transparent !important;
  box-shadow: inset 0 -1px 0 transparent;
  transition: color 0.15s ease, box-shadow 0.15s ease !important;
}

.site-nav .mega-col a:hover {
  background: transparent !important;
  color: #2563eb !important;
  box-shadow: inset 0 -1px 0 #2563eb !important;
}

.nav-toggle {
  border-radius: 12px;
  color: #64748b;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: #f8fafc;
}

/* 按钮：Aixcont 圆角蓝 */
.btn {
  border-radius: 16px !important;
  font-weight: 700 !important;
  letter-spacing: 0 !important;
}

.btn-primary {
  background: #3b82f6 !important;
  border: none !important;
  color: #fff !important;
  box-shadow: 0 8px 20px -8px rgba(59, 130, 246, 0.35) !important;
  -webkit-font-smoothing: auto;
  -moz-osx-font-smoothing: auto;
}

.btn-primary:hover {
  background: #2563eb !important;
  box-shadow: 0 10px 24px -8px rgba(59, 130, 246, 0.45) !important;
  transform: translateY(-1px);
}

.btn-outline {
  background: #fff !important;
  border: 1px solid #e2e8f0 !important;
  color: #334155 !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04) !important;
}

.btn-outline:hover {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
  color: #0f172a !important;
}

/* Hero / 页面头：柔和 slate 渐变 + 蓝光晕 */
.hero,
.page-hero {
  background:
    radial-gradient(at 40% 20%, rgba(59, 130, 246, 0.08) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(14, 165, 233, 0.06) 0px, transparent 50%),
    radial-gradient(at 0% 50%, rgba(37, 99, 235, 0.05) 0px, transparent 50%),
    linear-gradient(165deg, #f8fafc 0%, #f1f5f9 48%, #ffffff 100%) !important;
  border-bottom: 1px solid #f1f5f9 !important;
}

.page-hero h1,
.hero h1 {
  color: #0f172a !important;
  letter-spacing: -0.03em !important;
}

/* 卡片：更大圆角 + soft shadow */
.card,
.pillar-card,
.browse-card,
.guide-card,
.blog-card {
  border-radius: 20px !important;
  border-color: #f1f5f9 !important;
  box-shadow: 0 4px 24px -4px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.02) !important;
}

.card:hover,
.pillar-card:hover,
.browse-card:hover,
.guide-card:hover,
.blog-card:hover {
  border-color: rgba(37, 99, 235, 0.18) !important;
  box-shadow: 0 14px 36px -20px rgba(37, 99, 235, 0.22) !important;
}

/* 页脚：淡蓝灰底（轻分隔，无渐变） */
.site-footer {
  background: #f5f8fc !important;
  color: #64748b !important;
  border-top: 1px solid #e8eef6 !important;
  padding: 3.5rem 0 0 !important;
}

.site-footer a { color: #64748b !important; }
.site-footer a:hover { color: #0f172a !important; }

.footer-grid h4,
.site-footer h4,
.footer-brand .logo-text {
  color: #0f172a !important;
}

.footer-grid p,
.footer-contact li,
.footer-bottom,
.footer-copy,
.footer-tagline,
.footer-scope,
.site-footer .footer-meta {
  color: #94a3b8 !important;
}

.footer-contact a,
.footer-bottom a {
  color: #64748b !important;
}

.footer-bottom {
  border-top: 1px solid #e8eef6 !important;
  background: #eef3f9 !important;
}

.footer-brand .logo-accent { color: #2563eb !important; }

.site-footer strong {
  color: #0f172a !important;
  font-weight: 700;
  display: block;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
}

.site-footer .footer-brand {
  border-right-color: #e2e8f0;
}

.site-footer .footer-brand > strong {
  font-size: 0.9375rem;
  line-height: 1.45;
  margin-bottom: 0.5rem;
}

.site-footer .footer-tagline {
  color: #64748b !important;
  font-size: 0.875rem !important;
  margin-bottom: 0.75rem !important;
}

.site-footer .footer-scope {
  color: #94a3b8 !important;
  font-size: 0.8125rem !important;
  line-height: 1.7 !important;
  max-width: 26rem;
}

.site-footer .footer-brand-contact {
  border-top-color: #e2e8f0;
}

.site-footer .footer-brand-contact-title {
  color: #0f172a !important;
  margin-bottom: 0.75rem !important;
}

.site-footer .footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer .footer-nav li {
  margin: 0 0 0.55rem;
}

.site-footer .footer-nav a {
  color: #64748b !important;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-footer .footer-nav a:hover {
  color: #0f172a !important;
}

.site-footer .footer-label {
  color: #94a3b8 !important;
  min-width: 2.25rem;
}

.site-footer .footer-cta,
.site-footer a.footer-cta {
  background: #2563eb !important;
  color: #fff !important;
  border-radius: 8px;
}

.site-footer .footer-cta:hover,
.site-footer a.footer-cta:hover {
  background: #1d4ed8 !important;
  color: #fff !important;
}

.site-footer .footer-about-link {
  color: #475569 !important;
  font-size: 0.8125rem;
  font-weight: 500;
}

.site-footer .footer-about-link:hover {
  color: #0f172a !important;
}

.site-footer .footer-bottom {
  padding-top: 1.15rem !important;
  padding-bottom: 1.35rem !important;
  margin-top: 0;
}

.site-footer .footer-copy {
  margin: 0;
  font-size: 0.8125rem;
  color: #94a3b8 !important;
}

.site-footer .footer-beian {
  margin: 0;
}

.site-footer .footer-beian a {
  color: #94a3b8 !important;
  text-decoration: none;
  font-size: 0.8125rem;
}

.site-footer .footer-beian a:hover {
  color: #64748b !important;
}

.site-footer .footer-contact li {
  color: #64748b !important;
}

.site-footer .footer-contact a {
  color: #475569 !important;
}

.site-footer .footer-contact a:hover {
  color: #0f172a !important;
}

.site-footer .footer-grid p {
  color: #64748b !important;
}

.site-footer .footer-grid a:not(.footer-cta) {
  color: #64748b !important;
}

.site-footer .footer-grid a:not(.footer-cta):hover {
  color: #0f172a !important;
}

.site-footer .footer-grid a.footer-cta,
.site-footer .footer-grid .footer-cta {
  color: #fff !important;
}

.site-footer .footer-grid a.footer-cta:hover,
.site-footer .footer-grid .footer-cta:hover {
  color: #fff !important;
}

/* 知识分享列表微调 */
.blog-list-tag {
  background: #eff6ff !important;
  color: #2563eb !important;
  border-radius: 6px !important;
  font-weight: 700 !important;
}

.blog-list-title a,
.blog-list-title a:link,
.blog-list-title a:visited,
.blog-list-title a:active {
  color: #0f172a !important;
  font-weight: 700 !important;
}

.blog-list-title {
  overflow: hidden;
  min-width: 0;
}

.blog-list-title a {
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.blog-list-title a:hover { color: #2563eb !important; }

.blog-pagination button.is-active {
  background: #2563eb !important;
  border-color: #2563eb !important;
}

.blog-pagination button:hover:not(:disabled) {
  border-color: #2563eb !important;
  color: #2563eb !important;
}

@media (max-width: 900px) {
  .site-nav {
    top: 68px !important;
    padding: 1rem 1.25rem 1.25rem !important;
    background: #ffffff !important;
    border-bottom: 1px solid #f1f5f9 !important;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08) !important;
    border-radius: 0 0 16px 16px;
  }

  .site-nav > ul > li > a:not(.nav-cta) {
    border-radius: 0 !important;
    padding: 0.75rem 1rem !important;
    font-size: 0.9375rem !important;
  }

  .site-nav > ul > li > a:not(.nav-cta)::after {
    display: none !important;
  }

  .site-nav > ul > li > a.active:not(.nav-cta) {
    color: #0f172a !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  .nav-cta {
    margin-left: 0 !important;
    margin-top: 0.75rem !important;
    width: 100%;
    height: 44px !important;
    border-radius: 6px !important;
  }

  .site-nav .sub-menu,
  .site-nav .mega-panel {
    margin: 0.25rem 0 0.35rem 0.5rem !important;
    padding: 0.25rem !important;
    border: none !important;
    border-left: 2px solid #dbeafe !important;
    border-radius: 0 10px 10px 0 !important;
    box-shadow: none !important;
    background: #f8fafc !important;
    background-image: none !important;
    position: static !important;
    width: auto !important;
    left: auto !important;
    right: auto !important;
    max-height: none !important;
  }

  .site-nav .mega-panel::after {
    display: none !important;
  }

  .mega-panel-inner {
    padding: 0.5rem 0 !important;
    gap: 1rem !important;
    height: auto !important;
    min-height: 0 !important;
    grid-template-columns: 1fr !important;
  }

  .mega-intro {
    background-image: none !important;
    background-color: transparent !important;
    height: auto !important;
    padding: 0.35rem 0 !important;
  }

  .mega-panel-foot {
    background: transparent !important;
    border: none !important;
  }
}
/* 全站 FAQ · 简洁手风琴（分割线，无编号卡片） */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 44rem;
  margin: 0 0 1.25rem;
  padding: 0;
  border: none;
  border-top: 1px solid var(--color-border-light);
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  overflow: visible;
  counter-reset: none;
}

.page-content .faq-list,
.section .faq-list,
.section-alt .faq-list {
  margin-top: 0;
  max-width: 44rem;
}

/* 2×2 cross grid FAQ */
.faq-list--cross,
.page-content .faq-list--cross {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem 1rem;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  align-items: stretch;
  border-top: none;
}

.faq-list--cross .faq-item {
  height: 100%;
  border-top: 1px solid var(--color-border-light);
}

.faq-list--cross .faq-item summary {
  font-size: 0.9375rem;
  padding: 1rem 2.5rem 1rem 0;
}

/* Static FAQ cards — no accordion */
.faq-list--static {
  counter-reset: faq-n;
  border-top: none;
  gap: 0.65rem;
}

.faq-list--static .faq-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 0;
  padding: 1.15rem 1.2rem 1.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
  text-align: left;
  transition: border-color 0.25s ease, box-shadow 0.35s var(--ease-out-quart);
}

.faq-list--static .faq-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px -6px rgba(0, 0, 0, 0.06);
}

.faq-list--static .faq-card h3 {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.faq-list--static .faq-card h3::before {
  content: counter(faq-n, decimal-leading-zero);
  counter-increment: faq-n;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  height: 1.75rem;
  margin-top: 0.05rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
}

.faq-list--static .faq-card p {
  margin: 0;
  max-width: none;
  padding-left: 2.5rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

@media (max-width: 720px) {
  .faq-list--cross,
  .page-content .faq-list--cross {
    grid-template-columns: 1fr;
  }

  .faq-list--static .faq-card p {
    padding-left: 0;
  }
}

.faq-list .faq-item,
details.faq-item {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border-light);
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
  transition: none;
}

.faq-list .faq-item:hover,
details.faq-item:hover {
  background: transparent;
  border-color: var(--color-border-light);
  box-shadow: none;
}

.faq-list .faq-item[open],
details.faq-item[open] {
  border-color: var(--color-border-light);
  box-shadow: none;
}

.faq-list .faq-item summary,
details.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
  cursor: pointer;
  list-style: none;
  padding: 1.05rem 2.25rem 1.05rem 1.35rem;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  letter-spacing: -0.01em;
  user-select: none;
}

.faq-list .faq-item summary::-webkit-details-marker,
details.faq-item summary::-webkit-details-marker { display: none; }

.faq-list .faq-item summary::before,
details.faq-item summary::before {
  content: none;
  display: none;
  counter-increment: none;
}

.faq-list .faq-item summary::after,
details.faq-item summary::after {
  content: "";
  position: absolute;
  right: 0.15rem;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 1.5px solid #94a3b8;
  border-bottom: 1.5px solid #94a3b8;
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.2s ease, border-color 0.2s ease;
  float: none;
  color: inherit;
  font-weight: inherit;
}

.faq-list .faq-item[open] summary::after,
details.faq-item[open] summary::after {
  content: "";
  border-color: #64748b;
  transform: translateY(-20%) rotate(225deg);
}

.faq-list .faq-item[open] summary,
details.faq-item[open] summary {
  color: var(--color-text);
}

.faq-list .faq-item p,
details.faq-item p {
  margin: 0;
  padding: 0 2.25rem 1.15rem 1.35rem;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
  border-top: none;
}

.faq-list .faq-item a,
details.faq-item a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 兼容仍用 h3 的旧结构（若有） */
.faq-list .faq-item > h3 {
  margin: 0;
  padding: 1.05rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}
.faq-list .faq-item > h3 + p {
  padding: 0 0 1.15rem;
}

@media (max-width: 600px) {
  .faq-list .faq-item summary,
  details.faq-item summary {
    padding: 0.95rem 1.75rem 0.95rem 1.1rem;
    font-size: 0.9375rem;
  }
  .faq-list .faq-item p,
  details.faq-item p {
    padding: 0 1.75rem 1rem 1.1rem;
  }
}

/* CTA 深蓝底：主按钮白底深蓝字，描边按钮白字（修复蓝底蓝字看不见） */
.cta-band .btn-primary {
  background: #ffffff !important;
  color: #1d4ed8 !important;
  border: none !important;
  box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.35) !important;
}
.cta-band .btn-primary:hover {
  background: #f8fafc !important;
  color: #1e3a8a !important;
  transform: translateY(-1px);
}
.cta-band .btn-outline {
  background: transparent !important;
  border: 1.5px solid rgba(255, 255, 255, 0.75) !important;
  color: #ffffff !important;
  box-shadow: none !important;
}
.cta-band .btn-outline:hover {
  background: rgba(255, 255, 255, 0.12) !important;
  border-color: #ffffff !important;
  color: #ffffff !important;
}

/* ===================================================================
   能力 / 方案 · 四列能力 + 路径列表
   =================================================================== */

/* —— 产品能力四列等宽 —— */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.cap-col {
  padding: 1.5rem 1.35rem 1.6rem 0;
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.cap-col + .cap-col {
  padding-left: 1.35rem;
  border-left: 1px solid var(--color-border);
}

.cap-panel-index {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.cap-col h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.3;
}

.cap-col p {
  margin: 0 0 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  font-size: 0.9rem;
}

/* —— 方案路径：阶段 01 → 分叉 → 02 / 03 并排 —— */
.path-flow {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding-top: 0.5rem;
}

.path-node {
  min-width: 0;
}

.path-node--root {
  max-width: 36rem;
  margin: 0 auto;
  text-align: center;
  padding: 0.5rem 1rem 0;
}

.path-step {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.path-node h2,
.path-node h3 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.25;
}

.path-node p {
  margin: 0 0 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.path-node--root p {
  margin-left: auto;
  margin-right: auto;
  max-width: 32rem;
}

.path-branch {
  position: relative;
  width: 100%;
  height: 3.75rem;
  margin: 0.85rem 0 0.35rem;
  color: var(--color-primary);
  opacity: 0.7;
}

.path-branch-stem {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 1.15rem;
  background: currentColor;
  transform: translateX(-50%);
  border-radius: 1px;
}

.path-branch-bar {
  position: absolute;
  left: 25%;
  right: 25%;
  top: 1.15rem;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.path-branch-arm {
  position: absolute;
  top: 1.15rem;
  width: 2px;
  height: 1.55rem;
  background: currentColor;
  border-radius: 1px;
}

.path-branch-arm--l { left: 25%; transform: translateX(-50%); }
.path-branch-arm--r { left: 75%; transform: translateX(-50%); }

.path-branch-arm::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1px;
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateX(-50%) rotate(45deg);
}

.path-branch-mobile {
  display: none;
  width: 2px;
  height: 2.25rem;
  margin: 0.75rem auto 0.25rem;
  background: var(--color-primary);
  opacity: 0.55;
  position: relative;
}

.path-branch-mobile::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: translateX(-50%) rotate(45deg);
  opacity: 0.9;
}

.path-fork {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.path-fork .path-node {
  padding: 1.75rem 1.5rem 0.5rem;
  text-align: center;
}

.path-fork .path-node p {
  margin-left: auto;
  margin-right: auto;
  max-width: 22rem;
}

/* Home contact CTA — same blue band as .cta-band */
.page-home .section-alt.home-contact-section,
.home-contact-section {
  position: relative;
  overflow: hidden;
  background: var(--gradient-dark);
  border-top: none;
  border-bottom: none;
  color: #fff;
}

.home-contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(42% 80% at 85% 18%, rgba(255, 255, 255, 0.14) 0%, transparent 60%);
  pointer-events: none;
}

.home-contact {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

.home-contact-lead .section-label {
  margin-bottom: 0.85rem;
  color: rgba(255, 255, 255, 0.78);
}

.home-contact-lead .section-label::before {
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.22);
}

.home-contact-lead h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #fff;
}

.home-contact-lead > p {
  margin: 0 auto;
  max-width: none;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  white-space: nowrap;
}

.home-contact-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 1.5rem;
  text-align: left;
}

.home-contact-channel {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0;
  border: none;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s ease, color 0.2s ease;
}

a.home-contact-channel:hover {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  transform: none;
  color: inherit;
  opacity: 0.88;
}

a.home-contact-channel:hover .home-contact-icon {
  background: transparent;
  color: #fff;
  box-shadow: none;
}

a.home-contact-channel:hover .home-contact-v {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.home-contact-channel--static {
  cursor: default;
}

.home-contact-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s ease;
}

.home-contact-icon svg {
  width: 16px;
  height: 16px;
}

.home-contact-meta {
  display: inline-flex;
  flex-direction: row;
  align-items: baseline;
  gap: 0.4rem;
  min-width: 0;
  padding-top: 0;
}

.home-contact-k {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.4;
}

.home-contact-v {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  white-space: nowrap;
  word-break: keep-all;
  transition: color 0.2s ease;
}

.home-contact-channels > li {
  flex: 0 1 auto;
  animation: contactRise 0.7s var(--ease-out-expo) both;
}

.home-contact-channels > li:nth-child(1) { animation-delay: 0.05s; }
.home-contact-channels > li:nth-child(2) { animation-delay: 0.14s; }
.home-contact-channels > li:nth-child(3) { animation-delay: 0.23s; }

.home-contact-lead {
  animation: contactRise 0.75s var(--ease-out-expo) both;
}

@keyframes contactRise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-contact-lead,
  .home-contact-channels > li {
    animation: none;
  }

  a.home-contact-channel:hover {
    transform: none;
  }
}

@media (max-width: 820px) {
  .home-contact {
    gap: 1.25rem;
  }

  .home-contact-channels {
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
  }

  .home-contact-channels > li {
    flex: 0 1 auto;
    width: auto;
  }

  .home-contact-lead > p {
    max-width: none;
    white-space: normal;
  }

  .home-contact-v {
    white-space: normal;
    word-break: break-word;
  }
}

@media (max-width: 900px) {
  .cap-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cap-col {
    padding: 1.25rem 1rem 1.35rem;
  }

  .cap-col + .cap-col {
    padding-left: 1rem;
  }

  .cap-col:nth-child(2n+1) {
    padding-left: 0;
    border-left: 0;
  }

  .cap-col:nth-child(2) {
    border-left: 1px solid var(--color-border);
  }

  .path-fork {
    grid-template-columns: 1fr;
  }

  .path-fork .path-node,
  .path-fork .path-node + .path-node {
    padding: 1.5rem 0 0.25rem;
  }

  .path-branch {
    display: none;
  }

  .path-branch-mobile {
    display: block;
  }
}

@media (max-width: 560px) {
  .cap-grid {
    grid-template-columns: 1fr;
  }

  .cap-col,
  .cap-col + .cap-col,
  .cap-col:nth-child(2) {
    padding: 1.2rem 0;
    border-left: 0;
  }
}

/* Home brand story */
.home-story-section {
  position: relative;
  overflow: hidden;
}

.home-story-section::before {
  content: "";
  position: absolute;
  inset: -20% 55% auto -15%;
  height: 80%;
  background: radial-gradient(ellipse at 30% 40%, rgba(37, 99, 235, 0.07) 0%, transparent 60%);
  pointer-events: none;
}

.home-story {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 2.5rem 4rem;
  align-items: start;
}

.home-story-lead {
  position: sticky;
  top: 6rem;
}

.home-story-lead .section-label {
  margin-bottom: 0.85rem;
}

.home-story-lead h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.55rem, 2.8vw, 2.125rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.28;
  color: var(--color-text);
}

.home-story-lead .card-link {
  display: inline-flex;
  align-items: center;
}

.home-story-body {
  padding-top: 0.35rem;
  border-left: 2px solid rgba(37, 99, 235, 0.22);
  padding-left: 1.75rem;
}

.home-story-body p {
  margin: 0 0 1.25rem;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

.home-story-body p:last-child {
  margin-bottom: 0;
}

.home-story-lead,
.home-story-body {
  animation: contactRise 0.75s var(--ease-out-expo) both;
}

.home-story-body {
  animation-delay: 0.1s;
}

@media (prefers-reduced-motion: reduce) {
  .home-story-lead,
  .home-story-body {
    animation: none;
  }
}

@media (max-width: 820px) {
  .home-story {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .home-story-lead {
    position: static;
  }

  .home-story-lead h2 {
    margin-bottom: 1rem;
  }

  .home-story-body {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--color-border);
    padding-top: 1.35rem;
  }
}

/* Capability page layout: position on top, ability | problem below */
.capability-layout {
  margin-bottom: 2rem;
}

.capability-layout-position {
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.capability-layout-position h2 {
  margin-top: 0;
}

.capability-layout-position p {
  margin: 0 auto;
  max-width: 40rem;
}

.capability-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 3rem;
  align-items: start;
  max-width: 52rem;
  margin: 0 auto;
}

.capability-layout-col {
  text-align: left;
}

.capability-layout-col h2 {
  margin-top: 0;
  text-align: center;
}

.capability-layout-col ul,
.capability-layout-col ol,
.capability-layout-col p {
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}

.capability-layout-col ol {
  margin-bottom: 0.75rem;
}

.capability-layout-col > p:last-child {
  margin-bottom: 0;
  text-align: left;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

/* Compact vertical steps — not card-style page-content ol */
.capability-steps {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0 0 0 0.15rem;
  counter-reset: cap-step;
  border-left: 1px solid rgba(37, 99, 235, 0.18);
}

.capability-steps li {
  counter-increment: cap-step;
  position: relative;
  margin: 0 0 0.85rem;
  padding: 0 0 0 1.35rem;
  background: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  color: var(--color-text-secondary);
  line-height: 1.55;
  font-size: 0.9375rem;
}

.capability-steps li:last-child {
  margin-bottom: 0;
}

.capability-steps li:hover {
  border: 0;
  box-shadow: none;
}

.capability-steps li::before {
  content: counter(cap-step);
  position: absolute;
  left: -0.55rem;
  top: 0.15rem;
  width: 1.1rem;
  height: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  background: #fff;
  border: 1.5px solid rgba(37, 99, 235, 0.35);
  border-radius: 50%;
  box-shadow: 0 0 0 3px #fff;
}

/* Problem | Solution split on product overview */
.problem-solve {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem 3rem;
  align-items: start;
  margin-bottom: 2.5rem;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid var(--color-border);
}

.problem-solve-col h2 {
  margin-top: 0;
  font-size: 1.25rem;
  line-height: 1.4;
}

.problem-solve-col p,
.problem-solve-col ul,
.problem-solve-col ol {
  max-width: none;
}

.problem-solve-col > p:last-child,
.problem-solve-col > .capability-steps {
  margin-bottom: 0.75rem;
}

.problem-solve-col > p:last-child {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

@media (max-width: 820px) {
  .problem-solve {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .problem-solve-col + .problem-solve-col {
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
  }
}

/* Audience block — staircase as a group, group centered */
.audience-block {
  width: 100%;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.audience-block h2 {
  margin-top: 0;
  margin-bottom: 1.75rem;
}

.page-content .audience-block ul,
.audience-block ul {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.15rem;
  width: max-content;
  max-width: none;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  text-align: left;
}

.page-content .audience-block ul li,
.audience-block ul li {
  display: block;
  width: max-content;
  max-width: none;
  margin: 0;
  margin-bottom: 0;
  padding: 0;
  padding-left: 0;
  background: none;
  border: 0;
  box-shadow: none;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  white-space: nowrap;
  transition: color 0.25s ease, transform 0.3s var(--ease-out-quart);
}

.audience-block ul li::before {
  content: none;
}

.audience-block ul li:hover {
  color: var(--color-text);
  transform: translateX(3px);
  box-shadow: none;
}

/* 组内轻阶梯；整组再水平居中 */
.audience-block ul li:nth-child(1) { margin-left: 0; }
.audience-block ul li:nth-child(2) { margin-left: 2.75rem; }
.audience-block ul li:nth-child(3) { margin-left: 5.5rem; }
.audience-block ul li:nth-child(4) { margin-left: 8.25rem; }

@media (max-width: 640px) {
  .page-content .audience-block ul,
  .audience-block ul {
    display: flex;
    width: 100%;
    max-width: 100%;
  }

  .page-content .audience-block ul li,
  .audience-block ul li {
    white-space: normal;
    width: auto;
    max-width: 100%;
    margin-left: 0 !important;
  }
}

@media (max-width: 820px) {
  .capability-layout-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .capability-layout-col + .capability-layout-col {
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
  }
}

/* Centered product capability hero */
.page-hero--center {
  text-align: center;
}

.page-hero--center h1,
.page-hero--center > .container > p {
  margin-left: auto;
  margin-right: auto;
}

.page-hero--center h1 {
  max-width: 44rem;
}

.page-hero--center > .container > p {
  max-width: 40rem;
}

.page-hero--center .home-banner-actions {
  display: flex;
  justify-content: center;
}

.page-content--center .link-bar--section {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── 交付保障页 · deliver ── */
.screenshot-gallery--3 {
  grid-template-columns: repeat(3, 1fr);
}

.deliver-lede {
  max-width: none;
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .deliver-lede {
    white-space: normal;
  }
}

.page-content .deliver-promises {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
  max-width: none;
  margin: 0 0 2.75rem;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-content .deliver-promise {
  position: relative;
  counter-increment: none;
  margin: 0;
  padding: 1.65rem 1.4rem 1.5rem;
  background:
    linear-gradient(165deg, #ffffff 0%, var(--color-bg-muted) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
  transition: border-color 0.25s ease, box-shadow 0.3s var(--ease-out-quart), transform 0.3s var(--ease-out-quart);
}

.page-content .deliver-promise:hover {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.page-content .deliver-promise::before {
  content: attr(data-n);
  position: static;
  display: block;
  width: auto;
  height: auto;
  margin: 0 0 0.85rem;
  padding: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  background: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.page-content .deliver-promise h3 {
  margin: 0 0 0.55rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.35;
}

.page-content .deliver-promise p {
  margin: 0;
  max-width: none;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.deliver-compare {
  margin: 1.5rem auto 1.75rem;
}

.page-content .deliver-compare .compare-box ul {
  list-style: disc;
  padding-left: 1.125rem;
  max-width: none;
}

.page-content .deliver-compare .compare-box li {
  margin-bottom: 0.5rem;
  padding-left: 0;
}

.deliver-own {
  max-width: 40rem;
  margin: 0 0 2.5rem;
  padding: 1rem 1.15rem;
  font-size: 0.975rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  background: var(--color-primary-soft);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-content .screenshot-item figcaption strong {
  color: var(--color-text);
  font-weight: 600;
}

.deliver-tech {
  max-width: 40rem;
  margin: 0 0 2.75rem;
  padding: 0.85rem 1.1rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-muted);
}

.deliver-tech summary {
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  list-style: none;
}

.deliver-tech summary::-webkit-details-marker { display: none; }

.deliver-tech summary::after {
  content: " ▾";
  font-weight: 400;
  color: var(--color-muted);
}

.deliver-tech[open] summary::after { content: " ▴"; }

.deliver-tech p {
  margin: 0.75rem 0 0;
  max-width: none;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.deliver-cta {
  padding: 2.5rem 0 1rem;
  margin: 0 0 1.5rem;
}

.deliver-cta .cta-dark {
  margin-top: 0.5rem;
}

@media (max-width: 900px) {
  .page-content .deliver-promises {
    grid-template-columns: 1fr;
  }

  .page-content .deliver-promise:hover {
    transform: none;
  }

  .screenshot-gallery--3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .deliver-compare {
    grid-template-columns: 1fr;
  }
}

/* 行业方案试点：GEO 情况居中罗列 */
.solution-situation {
  text-align: center;
}

.solution-situation .section-header {
  margin-left: auto;
  margin-right: auto;
  max-width: none;
}

.solution-situation .section-header h2 {
  white-space: nowrap;
}

@media (max-width: 520px) {
  .solution-situation .section-header h2 {
    white-space: normal;
  }
}

.solution-situation ul {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: none;
  width: fit-content;
}

.solution-situation li {
  margin: 0 0 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  white-space: nowrap;
}

.solution-situation li:last-child {
  margin-bottom: 0;
}

@media (max-width: 720px) {
  .solution-situation li {
    white-space: normal;
    padding: 0 1rem;
  }
}

/* 行业方案 · 长条目列表（事实字段 / 合规红线）：允许换行、左对齐 */
.solution-situation--wrap ul {
  width: 100%;
  max-width: 46rem;
  text-align: left;
}

.solution-situation--wrap li {
  white-space: normal;
  position: relative;
  padding-left: 1.15rem;
}

.solution-situation--wrap li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* 行业方案 · 通用「方案价值」三行模板 */
.solution-value-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 56rem;
  margin-inline: auto;
}

.solution-value-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.35rem 1.5rem;
  background: var(--color-bg-elevated, #fff);
  border: 1px solid var(--color-border);
  position: relative;
  transition: border-color 0.2s ease;
}

.solution-value-item:hover,
.solution-value-item:focus-within {
  border-color: var(--color-primary);
}

.solution-value-icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
}

.solution-value-body {
  flex: 1;
  min-width: 0;
}

.solution-value-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.solution-value-body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.solution-value-cta {
  flex-shrink: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.solution-value-item:hover .solution-value-cta,
.solution-value-item:focus-within .solution-value-cta {
  display: inline-flex;
}

.solution-value-cta:hover,
.solution-value-cta:focus-visible {
  background: var(--color-primary);
  color: #fff;
}

@media (max-width: 720px) {
  .solution-value-item {
    flex-wrap: wrap;
    gap: 0.85rem;
    padding: 1.15rem 1.1rem;
  }

  .solution-value-cta {
    display: inline-flex;
    margin-left: auto;
  }
}