/* DIB 数智桥统一设计系统：现代企业级技术产品官网风 */
:root {
  --ink: #0f172a;
  --ink-soft: #334155;
  --ink-muted: #64748b;
  --blue: #1e3a8a;
  --trust-blue: #1e3a8a;
  --teal: #0f766e;
  --teal-dark: #0d5c56;
  --teal-light: #14b8a6;
  --teal-soft: #e6f7f4;
  --mint: #e4f7f3;
  --gold: #b7791f;
  --gold-light: #fde68a;
  --warm: #f8fafc;
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --surface-teal: #f0fdfa;
  --surface-blue: #eff6ff;
  --line: #e2e8f0;
  --line-soft: #f1f5f9;
  --muted: #f8fafc;
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(15, 23, 42, 0.12);
  --radius-sm: 6px;
  --radius-card: 10px;
  --radius-section: 16px;
  --radius-pill: 999px;
  --type-hero: clamp(32px, 4.5vw, 52px);
  --type-hero-mobile: clamp(28px, 7vw, 36px);
  --type-section: clamp(26px, 3vw, 36px);
  --type-section-mobile: clamp(22px, 5.5vw, 28px);
  --type-card-title: 20px;
  --type-body: 16px;
  --type-small: 14px;
  --type-xs: 13px;
  --weight-strong: 700;
  --weight-medium: 600;
  --leading-body: 1.65;
  --leading-tight: 1.25;
  --leading-headline: 1.2;
  --section-py: 96px;
  --section-py-mobile: 64px;
  --container-px: 24px;
  --container-px-mobile: 16px;
  --container-max: 1200px;
  --focus-ring: rgba(15, 118, 110, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  font-size: var(--type-body); line-height: var(--leading-body); overflow-x: hidden;
}
body.mobile-menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, h5, h6, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a:focus-visible, button:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--focus-ring); outline-offset: 3px;
}

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-px); padding-right: var(--container-px); }

/* 辅助功能 */
.skip-link {
  position: absolute; top: -40px; left: 16px; z-index: 200;
  padding: 8px 14px; color: #fff; background: var(--teal); border-radius: var(--radius-sm);
  font-size: var(--type-small); font-weight: var(--weight-strong);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 16px; outline: 3px solid var(--focus-ring); outline-offset: 2px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.hide-mobile { display: block; }
.hero-break-desktop { display: block; }
.hero-break-mobile { display: none; }

.back-to-top {
  position: fixed; right: 20px; bottom: calc(40px + env(safe-area-inset-bottom)); z-index: 90;
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; color: #fff; background: var(--teal);
  border-radius: var(--radius-pill); box-shadow: var(--shadow-md);
  opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--teal); transform: translateY(0); }
.back-to-top:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 3px; }

.reveal { opacity: 1; transform: none; }
.js-reveal-ready .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1); }
.js-reveal-ready .reveal.visible { opacity: 1; transform: translateY(0); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 12px;
  color: var(--teal); font-size: var(--type-xs); line-height: 1.2; font-weight: var(--weight-strong); letter-spacing: 0; text-transform: none;
}
.eyebrow-pill {
  padding: 7px 12px; color: var(--teal-dark);
  background: var(--surface-teal); border: 1px solid rgba(15,118,110,0.16);
  border-radius: var(--radius-pill);
}
.eyebrow-number span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 30px; height: 22px; padding: 0 8px; color: var(--teal-dark);
  background: var(--surface-teal); border: 1px solid rgba(15,118,110,0.14);
  border-radius: var(--radius-pill); font-size: 11px; line-height: 1; font-weight: 800; font-variant-numeric: tabular-nums;
}

section[id] { scroll-margin-top: 84px; }
.section-band { width: 100%; padding-top: var(--section-py); padding-bottom: var(--section-py); }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading h2 { margin: 0 0 16px; font-size: var(--type-section); line-height: var(--leading-headline); font-weight: var(--weight-strong); color: var(--ink); letter-spacing: -0.5px; }
.section-heading p { color: var(--ink-soft); font-size: 17px; line-height: var(--leading-body); }
.section-heading .eyebrow,
.cta-content > .eyebrow {
  color: var(--teal); font-size: var(--type-xs); line-height: 1.2;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 20px; border-radius: var(--radius-card);
  font-size: var(--type-small); font-weight: var(--weight-strong); transition: all 0.2s ease; white-space: nowrap;
}
.btn-primary { color: #fff; background: var(--teal); box-shadow: 0 4px 14px rgba(15,118,110,0.25); }
.btn-primary:hover { background: #0d5c56; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(15,118,110,0.32); }
.btn-secondary { color: var(--ink); background: var(--surface); border: 1px solid var(--line); }
.btn-secondary:hover { border-color: var(--teal); color: var(--teal); background: var(--surface-teal); }
.btn-ghost { color: var(--teal); background: transparent; }
.btn-ghost:hover { background: var(--surface-teal); }

.link-arrow { display: inline-flex; align-items: center; gap: 6px; color: var(--teal); font-weight: var(--weight-strong); font-size: var(--type-small); }
.link-arrow::after { content: "→"; transition: transform 0.2s ease; }
.link-arrow:hover::after { transform: translateX(4px); }

.card {
  padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm); transition: all 0.25s ease;
}
.card:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.card h3 { margin: 0 0 10px; font-size: var(--type-card-title); font-weight: var(--weight-strong); line-height: var(--leading-tight); color: var(--ink); }
.card p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }

.icon-card { display: flex; flex-direction: column; gap: 16px; }
.icon-card .card-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; color: var(--teal); background: var(--surface-teal); border-radius: var(--radius-sm); }

.number-card { position: relative; padding-top: 28px; }
.number-card .step-number { position: absolute; top: -14px; left: 24px; display: inline-flex; align-items: center; justify-content: center; min-width: 32px; height: 32px; padding: 0 8px; color: #fff; background: var(--teal); border-radius: var(--radius-sm); font-size: var(--type-xs); font-weight: var(--weight-strong); }

/* 顶部导航 */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 64px;
  padding: 0 var(--container-px);
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px) saturate(1.2);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.brand-mark {
  display: block; flex: 0 0 40px;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(15,118,110,0.18);
}
.brand-text { font-size: 18px; font-weight: var(--weight-strong); color: var(--ink); letter-spacing: -0.3px; }

.top-nav {
  display: flex; align-items: center; gap: 6px;
}
.top-nav a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px; color: var(--ink-soft); border-radius: var(--radius-sm);
  font-size: var(--type-small); font-weight: var(--weight-medium);
  transition: all 0.2s ease; white-space: nowrap;
}
.top-nav a:hover, .top-nav a.active { color: var(--teal); background: var(--surface-teal); }

.menu-toggle {
  display: none;
  align-items: center; justify-content: center;
  width: 40px; height: 40px;
  color: var(--ink);
  border-radius: var(--radius-sm);
}
.menu-toggle:hover { background: var(--surface-muted); }

/* 移动端菜单 */
.mobile-menu {
  position: fixed; inset: 64px 0 0 0; z-index: 49;
  display: none; flex-direction: column;
  padding: 16px var(--container-px-mobile) 32px;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(16px);
  overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 0; color: var(--ink);
  font-size: 17px; font-weight: var(--weight-medium);
  border-bottom: 1px solid var(--line-soft);
}
.mobile-menu a.active { color: var(--teal); }
.mobile-menu .btn { margin-top: 16px; justify-content: center; }

/* Hero 区 */
.hero {
  position: relative;
  width: 100%;
  padding: 100px var(--container-px) 80px;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(15,118,110,0.06) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(30,58,138,0.04) 0%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr); gap: 64px; align-items: center;
}
.hero-copy { position: relative; z-index: 1; }
.hero-copy h1 {
  margin: 0 0 20px;
  font-size: var(--type-hero); line-height: var(--leading-headline); font-weight: var(--weight-strong); color: var(--ink); letter-spacing: -1px;
}
.hero-copy .hero-subtitle {
  margin: 0 0 16px; color: var(--teal);
  font-size: 20px; font-weight: var(--weight-strong); line-height: var(--leading-tight);
}
.hero-copy .hero-summary {
  margin: 0 0 28px; color: var(--ink-soft);
  font-size: 17px; line-height: var(--leading-body); max-width: 600px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.hero-tags span {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; color: var(--ink-soft);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-pill);
  font-size: var(--type-small); font-weight: var(--weight-medium);
}
.hero-tags span::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal);
}
.hero-visual { position: relative; z-index: 1; }

/* 子页 Hero */
.subpage-hero {
  position: relative; width: 100%;
  padding: 84px var(--container-px) 64px;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(15,118,110,0.05) 0%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  overflow: hidden;
}
.subpage-hero .hero-grid { grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.8fr); gap: 48px; }
.subpage-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 3.6vw, 44px); line-height: 1.3; font-weight: var(--weight-strong); color: var(--ink); letter-spacing: -0.6px;
}
.subpage-summary { margin: 0 0 28px; color: var(--ink-soft); font-size: 17px; line-height: var(--leading-body); max-width: 620px; }
.subpage-hero-panel {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px;
  padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-section); box-shadow: var(--shadow-md);
}
.subpage-hero-panel span {
  display: grid; place-items: center; min-height: 84px; padding: 16px;
  background: var(--surface-teal); border: 1px solid rgba(15,118,110,0.12); border-radius: var(--radius-card);
  font-weight: var(--weight-strong); text-align: center;
}

/* 信号条 */
.signal-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px;
  padding: 18px var(--container-px); background: var(--ink); color: #fff;
}
.signal-strip span {
  display: flex; align-items: center; justify-content: center; min-height: 44px;
  padding: 8px 14px; text-align: center; color: #e8fffb;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(94,234,212,0.18); border-radius: var(--radius-card);
  font-weight: var(--weight-medium); font-size: var(--type-small);
}

/* 特性网格 */
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.feature-grid .card h3 { color: var(--teal); }

/* 内容网格 */
.content-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.content-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.content-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* 暗色 Section */
.section-dark {
  background: var(--ink); color: #fff;
}
.section-dark .section-heading h2,
.section-dark .card h3 { color: #fff; }
.section-dark .card { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.1); }
.section-dark .card p { color: rgba(255,255,255,0.72); }
.section-dark .card:hover { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.16); }
.section-dark .eyebrow { color: var(--teal-light); }
.section-dark .eyebrow-number span {
  color: #d8fff7; background: rgba(45,212,191,0.14); border-color: rgba(45,212,191,0.28);
}
.section-dark .section-heading p { color: rgba(255,255,255,0.78); }

/* 浅色 Section */
.section-muted { background: var(--surface-muted); }

/* 架构网络图（用于技术交流页 hero） */
.bridge-network {
  display: grid; gap: 14px;
  padding: 24px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-section);
  box-shadow: var(--shadow-lg);
}
.network-caption {
  display: flex; align-items: center; justify-content: center;
  padding: 8px 14px; color: var(--trust-blue);
  background: var(--surface-blue); border: 1px solid rgba(30,58,138,0.12); border-radius: var(--radius-pill);
  font-size: var(--type-small); font-weight: var(--weight-strong); text-align: center;
}
.network-layer { display: grid; gap: 10px; }
.network-layer-label {
  grid-column: 1 / -1; justify-self: center;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 4px 11px; color: var(--teal);
  background: var(--surface-teal); border: 1px solid rgba(15,118,110,0.16); border-radius: var(--radius-pill);
  font-size: var(--type-xs); font-weight: var(--weight-strong);
}
.network-layer-zones { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.network-card {
  display: grid; gap: 4px; min-height: 70px; place-items: center;
  padding: 12px; text-align: center; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm); transition: all 0.25s ease;
}
.network-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.network-card small { color: var(--gold); font-size: 11px; font-weight: var(--weight-strong); letter-spacing: 1px; text-transform: uppercase; }
.network-card strong { color: var(--ink); font-size: 15px; line-height: 1.25; }
.zone-card { color: #fff; background: var(--teal); border-color: rgba(15,118,110,0.25); }
.zone-card small { color: rgba(255,255,255,0.8); }
.zone-card strong { color: #fff; }
.anchor-card { color: #fff; background: var(--trust-blue); border-color: rgba(30,58,138,0.25); }
.anchor-card small { color: rgba(255,255,255,0.8); }
.anchor-card strong { color: #fff; }
.network-foundation-bar {
  display: grid; gap: 6px; place-items: center;
  min-height: 96px; padding: 16px 20px; color: #fff; text-align: center;
  background: linear-gradient(135deg, var(--ink) 0%, #12394a 100%);
  border-radius: var(--radius-card); box-shadow: var(--shadow-md);
}
.network-foundation-bar span { color: var(--teal-light); font-size: var(--type-xs); font-weight: var(--weight-strong); }
.network-foundation-bar strong { font-size: 22px; line-height: 1.2; font-weight: var(--weight-strong); }
.network-foundation-bar small { color: rgba(255,255,255,0.78); font-size: var(--type-small); }
.network-capability-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.network-capability-row span {
  display: grid; min-height: 40px; place-items: center; padding: 8px;
  color: var(--trust-blue); background: var(--surface-blue);
  border: 1px solid rgba(30,58,138,0.12); border-radius: var(--radius-card);
  font-size: var(--type-small); font-weight: var(--weight-strong);
}
.network-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; min-height: 28px; align-items: stretch; }
.network-flow span { position: relative; display: block; }
.network-flow span::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 6px;
  width: 2px; background: linear-gradient(180deg, rgba(15,118,110,0.18), rgba(15,118,110,0.52)); transform: translateX(-50%);
}
.network-flow span::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 8px; height: 8px; border-right: 2px solid rgba(15,118,110,0.58); border-bottom: 2px solid rgba(15,118,110,0.58);
  transform: translateX(-50%) rotate(45deg);
  animation: flowArrow 1.8s ease-in-out infinite;
}
.network-flow span:nth-child(2)::after { animation-delay: 0.2s; }
.network-flow span:nth-child(3)::after { animation-delay: 0.4s; }
.network-flow span:nth-child(4)::after { animation-delay: 0.6s; }
.network-flow-anchors { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 86%; width: 100%; justify-self: center; }
.network-anchor-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.network-anchor-row-compact {
  display: grid; grid-template-columns: 1fr; gap: 10px;
  padding: 14px; background: linear-gradient(180deg, var(--surface-blue) 0%, #f8fbff 100%);
  border: 1px solid rgba(30,58,138,0.12); border-radius: var(--radius-card);
}
.network-anchor-heading { display: grid; gap: 4px; place-items: center; text-align: center; }
.network-anchor-heading .network-layer-label { grid-column: auto; justify-self: center; }
.network-anchor-heading strong { color: var(--trust-blue); font-size: 16px; line-height: 1.25; font-weight: var(--weight-strong); }
.network-anchor-nodes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.network-anchor-node {
  display: grid; gap: 3px; place-items: center; min-height: 58px; padding: 10px 8px;
  text-align: center; background: rgba(255,255,255,0.88); border: 1px solid rgba(30,58,138,0.12);
  border-radius: var(--radius-card);
}
.network-anchor-node strong { color: var(--ink); font-size: 15px; line-height: 1.2; font-weight: var(--weight-strong); }
.network-anchor-node span { color: var(--ink-soft); font-size: 12px; line-height: 1.35; }
.network-anchor-note {
  display: flex; align-items: center; justify-content: center; min-height: 32px; padding: 6px 10px;
  color: var(--teal); background: rgba(15,118,110,0.07); border: 1px solid rgba(15,118,110,0.12);
  border-radius: var(--radius-pill); font-size: 12px; font-weight: var(--weight-strong); text-align: center;
}
.bridge-network-compact {
  gap: 10px;
  padding: 18px;
  border-color: #e2e8f0;
  box-shadow: 0 14px 34px rgba(15,23,42,0.07);
}
.network-layer-title {
  grid-column: 1 / -1;
  justify-self: center;
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.3;
  font-weight: var(--weight-strong);
}
.bridge-network-compact .network-layer-zones .network-layer-title { color: #0f766e; }
.bridge-network-compact .network-anchor-row-slim .network-layer-title { color: #1e3a8a; }
.network-relationship {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-self: center;
  min-height: 38px;
  color: #64748b;
}
.network-relationship::before,
.network-relationship::after {
  content: "";
  width: 1px;
  min-height: 10px;
  flex: 1;
  background: #86bdb8;
}
.network-relationship-label {
  padding: 1px 7px;
  font-size: 12px;
  line-height: 1.35;
  font-weight: var(--weight-medium);
  white-space: nowrap;
}
.bridge-network-compact .network-card {
  min-height: 58px;
  padding: 11px 12px;
  border-radius: 10px;
  box-shadow: none;
}
.bridge-network-compact .network-card:hover {
  transform: none;
  box-shadow: none;
}
.bridge-network-compact .zone-card {
  background: #f0fdfa;
  border-color: #bfe7df;
}
.bridge-network-compact .zone-card strong {
  color: var(--teal);
  font-size: 16px;
}
.bridge-network-compact .network-foundation-bar {
  min-height: 82px;
  padding: 14px 18px;
  background: #102a3a;
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(15,23,42,0.12);
}
.bridge-network-compact .network-foundation-bar strong { font-size: 20px; }
.bridge-network-compact .network-foundation-bar small { color: #cbd5e1; font-size: 13px; }
.bridge-network-compact .anchor-card {
  background: #eff6ff;
  border-color: #c9d8f3;
}
.bridge-network-compact .anchor-card strong {
  color: var(--trust-blue);
  font-size: 15px;
}
.network-anchor-row-slim {
  width: 88%;
  justify-self: center;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.bridge-network-mobile { display: none; }
.network-mobile-step {
  display: grid; gap: 4px; min-height: 72px; place-items: center;
  padding: 14px; text-align: center; background: #f0fdfa;
  border: 1px solid #bfe7df; border-radius: var(--radius-card);
}
.network-mobile-step span { color: var(--teal); font-size: 12px; font-weight: var(--weight-strong); line-height: 1.2; }
.network-mobile-step strong { color: var(--ink); font-size: 17px; line-height: 1.25; font-weight: var(--weight-strong); }
.network-mobile-step-primary {
  color: #fff; background: #102a3a;
  border-color: #102a3a; box-shadow: 0 8px 20px rgba(15,23,42,0.12);
}
.network-mobile-step-primary span { color: var(--teal-light); }
.network-mobile-step-primary strong { color: #fff; }
.network-mobile-step-anchor { background: #eff6ff; border-color: #c9d8f3; }
.network-mobile-step-anchor span { color: #1e3a8a; }
.network-mobile-flow {
  display: flex; flex-direction: column; align-items: center; justify-self: center;
  min-height: 38px; color: #64748b;
}
.network-mobile-flow::before,
.network-mobile-flow::after {
  content: ""; width: 1px; min-height: 9px; flex: 1; background: #86bdb8;
}
.network-mobile-flow span { padding: 1px 6px; font-size: 12px; line-height: 1.35; font-weight: var(--weight-medium); }
@keyframes flowArrow {
  0%, 100% { opacity: 0.35; transform: translateX(-50%) translateY(0) rotate(45deg); }
  50% { opacity: 1; transform: translateX(-50%) translateY(5px) rotate(45deg); }
}

/* 工作流 */
.workflow-guide { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 20px; }
.workflow-guide article {
  display: grid; grid-template-columns: auto 1fr; column-gap: 12px; row-gap: 4px;
  align-items: start; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
}
.workflow-guide article span {
  grid-row: span 2; display: inline-grid; place-items: center;
  width: 34px; height: 34px; color: #fff; background: var(--teal); border-radius: var(--radius-sm);
  font-size: var(--type-xs); font-weight: var(--weight-strong);
}
.workflow-guide article strong { color: var(--ink); font-size: 17px; line-height: 1.25; }
.workflow-guide article small { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.55; }
.workflow-intro { margin-bottom: 24px; color: var(--ink-soft); font-size: 17px; line-height: var(--leading-body); }
.workflow-diagram { display: grid; gap: 22px; }
.workflow-entry {
  display: grid; grid-template-columns: minmax(180px, 0.8fr) 54px minmax(220px, 1fr); gap: 14px; align-items: center; max-width: 720px;
}
.workflow-node {
  position: relative; display: grid; gap: 6px; padding: 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
}
.workflow-node span { color: var(--gold); font-size: var(--type-xs); font-weight: var(--weight-strong); letter-spacing: 0.5px; }
.workflow-node strong { color: var(--ink); font-size: 18px; line-height: 1.25; }
.workflow-node small { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.55; }
.workflow-arrow { position: relative; display: block; height: 2px; background: linear-gradient(90deg, var(--teal) 0%, var(--trust-blue) 100%); }
.workflow-arrow::after {
  content: ""; position: absolute; right: -1px; top: 50%;
  width: 10px; height: 10px; border-top: 2px solid var(--trust-blue); border-right: 2px solid var(--trust-blue);
  transform: translateY(-50%) rotate(45deg);
}
.workflow-cloud, .workflow-hospital {
  padding: 22px; background: var(--surface-muted); border: 1px solid var(--line); border-radius: var(--radius-card);
}
.workflow-group-title { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.workflow-group-title span { color: var(--teal); font-size: var(--type-xs); font-weight: var(--weight-strong); letter-spacing: 0.5px; }
.workflow-group-title strong { font-size: 20px; line-height: 1.25; }
.workflow-cloud-grid { display: grid; grid-template-columns: 1.15fr repeat(3, minmax(0, 1fr)); gap: 14px; align-items: stretch; }
.workflow-cloud-grid .api-node { grid-row: span 2; color: #fff; background: var(--ink); border-color: rgba(15,31,46,0.12); }
.workflow-cloud-grid .api-node span, .workflow-cloud-grid .api-node strong, .workflow-cloud-grid .api-node small { color: #fff; }
.workflow-outbound {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 48px; padding: 12px; color: #fff;
  background: linear-gradient(90deg, var(--teal) 0%, var(--trust-blue) 100%);
  border-radius: var(--radius-card); font-weight: var(--weight-strong); box-shadow: var(--shadow-sm);
}
.workflow-outbound span { padding: 4px 10px; color: var(--ink); background: rgba(255,255,255,0.9); border-radius: var(--radius-sm); font-size: var(--type-small); }
.workflow-hospitals { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.workflow-hospital-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.workflow-hospital-grid .agent-node { grid-row: span 2; }
.workflow-hospital-grid.compact .agent-node { grid-row: auto; }
.his-node { background: #ffffff; }
.connector-node { background: #fffaf0; border-color: rgba(200,149,60,0.22); }
.queue-node::after, .scheduler-node::after, .store-node::after {
  content: ""; position: absolute; left: -15px; top: 50%; width: 14px; height: 2px; background: rgba(15,118,110,0.32);
}

/* 专区网格 */
.domain-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.domain-grid article { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.domain-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.domain-badge {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; margin-bottom: 14px;
  color: #fff; background: linear-gradient(135deg, var(--gold) 0%, #a67c2e 100%);
  border-radius: var(--radius-sm); box-shadow: 0 4px 12px rgba(200,149,60,0.25);
}
.domain-index {
  position: absolute; right: -6px; bottom: -6px;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 5px; color: #fff;
  background: var(--teal); border: 2px solid #fff; border-radius: var(--radius-pill);
  font-size: 11px; font-weight: var(--weight-strong);
}
.domain-grid h3 { margin: 0 0 10px; font-size: var(--type-card-title); font-weight: var(--weight-strong); }
.domain-grid p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }

/* 锚点网格 */
.anchor-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.anchor-grid article { position: relative; overflow: hidden; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.anchor-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.anchor-grid article::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--gold) 0%, var(--teal) 100%); }
.anchor-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; margin-bottom: 14px; color: var(--gold); background: #fffaf0; border: 1px solid rgba(200,149,60,0.18); border-radius: var(--radius-sm); }
.anchor-grid h3 { margin: 0 0 8px; font-size: var(--type-card-title); font-weight: var(--weight-strong); }
.anchor-grid p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.anchor-map {
  display: grid; grid-template-columns: minmax(200px, 0.35fr) minmax(0, 1fr); gap: 16px; align-items: stretch; margin-top: 24px;
  padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
}
.anchor-core { display: grid; place-items: center; min-height: 110px; text-align: center; color: #fff; background: linear-gradient(135deg, var(--ink) 0%, #1a3a4a 100%); border-radius: var(--radius-card); font-size: 20px; font-weight: var(--weight-strong); }
.anchor-spokes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.anchor-spokes span { display: grid; min-height: 110px; place-items: center; text-align: center; padding: 14px; color: var(--ink); background: var(--surface-teal); border: 1px solid rgba(15,118,110,0.15); border-radius: var(--radius-card); font-weight: var(--weight-strong); font-size: var(--type-small); }

/* 路线与连接网格 */
.roadmap-track { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.roadmap-track article { position: relative; overflow: hidden; padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.roadmap-track article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.roadmap-track article::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--teal) 0%, var(--teal-light) 100%); opacity: 0; transition: opacity 0.2s ease; }
.roadmap-track article:hover::before { opacity: 1; }
.roadmap-track span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 34px; margin-bottom: 12px; color: #fff;
  background: var(--teal); border-radius: var(--radius-sm); font-weight: var(--weight-strong); font-size: var(--type-small);
}
.roadmap-track h3 { margin: 0 0 8px; font-size: 18px; font-weight: var(--weight-strong); }
.roadmap-track p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }

.connection-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.connection-grid article { display: flex; flex-direction: column; gap: 6px; min-height: 120px; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
.connection-grid article strong { color: var(--teal); font-size: 18px; font-weight: var(--weight-strong); }
.connection-grid article span { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }

/* 材料中心 */
.resource-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.resource-card {
  display: flex; flex-direction: column; gap: 12px;
  min-height: 220px; padding: 22px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
  transition: all 0.25s ease; position: relative; overflow: hidden;
}
.resource-card:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.resource-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--teal) 0%, var(--trust-blue) 100%); opacity: 0; transition: opacity 0.2s ease; }
.resource-card:hover::before { opacity: 1; }
.resource-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--gold); font-size: 11px; font-weight: var(--weight-strong); letter-spacing: 0.5px; text-transform: uppercase; }
.resource-meta strong { color: var(--trust-blue); font-size: 11px; background: var(--surface-muted); padding: 3px 7px; border-radius: var(--radius-sm); }
.resource-card h3 { margin: 0; font-size: var(--type-card-title); font-weight: var(--weight-strong); line-height: var(--leading-tight); }
.resource-card p { margin: 0; color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.resource-action {
  display: inline-flex; align-items: center; gap: 6px;
  width: fit-content; margin-top: auto; padding: 8px 14px;
  color: #fff; background: var(--teal); border-radius: var(--radius-sm);
  font-size: var(--type-small); font-weight: var(--weight-strong); transition: all 0.2s ease;
}
.resource-action:hover { background: #0d5c56; }
.resource-action::after { content: "→"; transition: transform 0.2s ease; }
.resource-action:hover::after { transform: translateX(4px); }

.document-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.document-links a {
  padding: 10px 16px; background: var(--surface); border: 1.5px solid var(--line); border-radius: var(--radius-card);
  color: var(--trust-blue); font-weight: var(--weight-strong); font-size: var(--type-small); transition: all 0.2s ease;
}
.document-links a:hover { border-color: var(--teal); color: var(--teal); background: var(--surface-teal); transform: translateY(-1px); }

/* 时间轴 */
.timeline-list { position: relative; display: grid; gap: 18px; padding-left: 28px; }
.timeline-list::before { content: ""; position: absolute; top: 12px; bottom: 12px; left: 10px; width: 2px; background: linear-gradient(180deg, rgba(15,118,110,0.18) 0%, rgba(30,58,138,0.52) 52%, rgba(200,149,60,0.28) 100%); border-radius: var(--radius-pill); }
.timeline-card {
  display: grid; grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 18px; align-items: start; margin-left: 18px; padding: 22px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm);
  position: relative; transition: all 0.25s ease;
}
.timeline-card:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); }
.timeline-marker { position: absolute; top: 26px; left: -34px; width: 16px; height: 16px; border-radius: var(--radius-pill); background: var(--teal); border: 3px solid var(--surface); box-shadow: 0 0 0 3px rgba(15,118,110,0.12); }
.timeline-date { color: var(--teal); font-weight: var(--weight-strong); font-size: var(--type-small); }
.timeline-type { display: inline-block; margin-bottom: 6px; color: var(--gold); font-size: 11px; font-weight: var(--weight-strong); letter-spacing: 0.5px; text-transform: uppercase; }
.timeline-card h3 { margin: 0 0 6px; font-size: 18px; font-weight: var(--weight-strong); line-height: 1.35; }
.timeline-card p { margin: 0; color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.timeline-status { justify-self: end; padding: 5px 12px; color: #fff; background: var(--ink); border-radius: var(--radius-sm); font-size: var(--type-xs); font-weight: var(--weight-strong); white-space: nowrap; }
.timeline-link { display: inline-flex; margin-top: 10px; color: var(--teal); font-size: var(--type-small); font-weight: var(--weight-strong); gap: 4px; }
.timeline-link::after { content: "→"; transition: transform 0.2s ease; }
.timeline-link:hover::after { transform: translateX(4px); }
.timeline-empty, .timeline-error { margin: 0; padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); color: var(--ink-soft); }
.timeline-error { color: #7a2e2e; background: #fff8f5; border-color: #edc8bd; }

/* 表格 */
.table-wrap { width: 100%; overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
.support-table { width: 100%; min-width: 760px; border-collapse: collapse; color: var(--ink); }
.support-table th, .support-table td { padding: 16px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.support-table th { color: var(--ink); background: var(--surface-muted); font-size: var(--type-small); font-weight: var(--weight-strong); }
.support-table td { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.support-table td:first-child { color: var(--ink); font-weight: var(--weight-medium); }
.support-table tbody tr:last-child td { border-bottom: 0; }
.support-table tbody tr:hover { background: rgba(15,118,110,0.03); }

/* 页脚 */
.site-footer {
  width: 100%; padding: 48px var(--container-px); background: var(--surface-muted); border-top: 1px solid var(--line);
}
.site-footer .container { display: grid; grid-template-columns: minmax(240px, 1fr) auto auto; gap: 32px; align-items: start; }
.site-footer .container.footer-simple { grid-template-columns: 1fr auto; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand strong { display: block; color: var(--ink); font-size: 17px; font-weight: var(--weight-strong); }
.footer-brand-summary { display: block; color: var(--ink-soft); font-size: var(--type-small); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-links a { padding: 8px 14px; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: var(--type-small); font-weight: var(--weight-medium); transition: all 0.2s ease; }
.footer-links a:hover { color: var(--teal); background: var(--surface-teal); border-color: rgba(15,118,110,0.25); }
.footer-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; color: var(--ink-soft); font-size: var(--type-small); }
.footer-meta a { color: var(--teal); font-weight: var(--weight-medium); transition: color 0.2s ease; }
.footer-meta a:hover { color: var(--blue); }
.police-record { display: inline-flex; align-items: center; justify-content: flex-end; white-space: nowrap; }

/* 保留旧类名兼容（tech.html / agent.html 仍在使用） */
.content-section { padding: var(--section-py) var(--container-px); }
.content-section > .section-heading,
.content-section > :not(.section-heading) {
  width: 100%; max-width: var(--container-max); margin-left: auto; margin-right: auto;
}
.muted-section { background: var(--surface-muted); }

.signal-strip {
  max-width: var(--container-max); margin-left: auto; margin-right: auto;
  box-shadow: 0 0 0 100vmax var(--ink); clip-path: inset(0 -100vmax);
}
.value-strip {
  padding: 28px var(--container-px); color: var(--ink);
  background: linear-gradient(180deg, #ffffff 0%, var(--surface-muted) 100%);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.value-strip-compact { position: relative; }
.value-flow {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px;
  width: 100%; max-width: var(--container-max); margin: 0 auto;
}
.value-flow article {
  position: relative; display: grid; grid-template-columns: auto 1fr; column-gap: 10px; row-gap: 2px;
  align-items: center; min-height: 72px; padding: 14px 16px;
  background: rgba(255,255,255,0.76); border: 1px solid var(--line); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm); transition: all 0.25s ease;
}
.value-flow article:hover { border-color: rgba(15,118,110,0.2); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.value-flow article::after {
  content: ""; position: absolute; top: 50%; right: -12px; z-index: 1;
  width: 12px; height: 2px; background: linear-gradient(90deg, rgba(15,118,110,0.3), rgba(15,118,110,0.1));
  transform: translateY(-50%);
}
.value-flow article:last-child::after { display: none; }
.value-flow article > .value-icon {
  grid-row: span 2; display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; color: var(--teal); background: var(--surface-teal);
  border: 1px solid rgba(15,118,110,0.14); border-radius: var(--radius-sm);
}
.value-flow article > strong { color: var(--ink); font-size: 16px; line-height: 1.25; font-weight: var(--weight-strong); }
.value-flow article > span:not(.value-icon) { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.45; }

.architecture-map { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.arch-column { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.arch-column:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.arch-column h3 { margin: 0 0 14px; font-size: var(--type-card-title); font-weight: var(--weight-strong); }
.arch-column ul { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.arch-column li { margin: 8px 0; }
.arch-column li::marker { color: var(--teal); }
.mini-card { margin-top: 10px; padding: 14px; background: var(--surface-teal); border-radius: var(--radius-sm); font-weight: var(--weight-medium); font-size: var(--type-small); border: 1px solid rgba(15,118,110,0.1); transition: all 0.2s ease; }
.mini-card:hover { background: #ccfbf1; transform: translateX(3px); }

.comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.comparison-grid article { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
.comparison-grid article:first-child { border-left: 4px solid var(--line); }
.comparison-grid article:nth-child(2) { border-left: 4px solid var(--teal); background: var(--surface-teal); }
.comparison-grid h3 { margin: 0 0 12px; font-size: var(--type-card-title); font-weight: var(--weight-strong); }

.step-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.checklist-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.checklist-grid-six { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step-grid article, .checklist-grid article { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.step-grid article:hover, .checklist-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.step-grid span { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 34px; margin-bottom: 14px; color: #fff; background: var(--teal); border-radius: var(--radius-sm); font-weight: var(--weight-strong); font-size: var(--type-small); }
.step-grid h3, .checklist-grid h3 { margin: 0 0 10px; font-size: var(--type-card-title); font-weight: var(--weight-strong); }
.step-grid p, .checklist-grid p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.checklist-grid article { position: relative; overflow: hidden; }
.checklist-grid article::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--trust-blue) 0%, var(--teal) 100%); }

.cta-band { padding: 80px 0; text-align: center; }
.cta-band > .section-heading { max-width: 1100px; margin-left: auto; margin-right: auto; text-align: center; }
.cta-content { max-width: 720px; margin: 0 auto; }
.cta-content h2 { margin: 0 0 16px; font-size: var(--type-section); line-height: var(--leading-headline); font-weight: var(--weight-strong); letter-spacing: -0.5px; }
.cta-content > p { margin: 0 0 32px; font-size: 17px; line-height: var(--leading-body); }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* 浅色 CTA band */
.cta-band:not(.section-dark) { background: linear-gradient(180deg, #ffffff 0%, var(--surface-muted) 100%); border-top: 1px solid var(--line); }
.cta-band:not(.section-dark) .cta-content h2 { color: var(--ink); }
.cta-band:not(.section-dark) .cta-content > p { color: var(--ink-soft); }
.cta-band-light {
  padding: 68px 0;
  background:
    linear-gradient(135deg, #ffffff 0%, #f0fdfa 44%, #eff6ff 100%);
  border-top: 1px solid rgba(15,118,110,0.1);
  border-bottom: 1px solid rgba(30,58,138,0.08);
}
.cta-band-light .cta-content { max-width: 760px; }
.cta-band-light .eyebrow-pill {
  color: var(--teal-dark);
  background: rgba(15,118,110,0.1);
  border-color: rgba(15,118,110,0.18);
}
.cta-band-light .cta-content h2 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: 0;
}
.cta-band-light .cta-content > p {
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 28px;
  color: var(--ink-soft);
}
.cta-band-light .btn-secondary {
  color: var(--trust-blue);
  background: rgba(255,255,255,0.78);
  border-color: rgba(30,58,138,0.18);
}
.cta-band-light .btn-secondary:hover {
  color: var(--teal);
  background: var(--surface-teal);
  border-color: rgba(15,118,110,0.24);
}

/* 暗色 CTA band */
.section-dark.cta-band { background: var(--ink); }
.section-dark.cta-band .cta-content h2 { color: #fff; }
.section-dark.cta-band .cta-content > p { color: rgba(255,255,255,0.78); }
.section-dark.cta-band .eyebrow { color: var(--teal-light); }
.section-dark.cta-band .cta-content > .eyebrow { color: var(--teal-light); }
.section-dark.cta-band .btn-secondary { color: #fff; background: transparent; border-color: rgba(255,255,255,0.35); }
.section-dark.cta-band .btn-secondary:hover { color: var(--ink); background: #fff; border-color: #fff; }
.cta-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; max-width: 1100px; margin: 0 auto; text-align: left; }
.cta-grid article { display: flex; flex-direction: column; gap: 10px; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.cta-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.cta-grid h3 { margin: 0; font-size: var(--type-card-title); font-weight: var(--weight-strong); }
.cta-grid p { margin: 0; color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }
.cta-grid a { display: inline-flex; align-items: center; gap: 6px; width: fit-content; margin-top: auto; padding: 8px 14px; color: #fff; background: var(--teal); border-radius: var(--radius-sm); font-size: var(--type-small); font-weight: var(--weight-strong); transition: all 0.2s ease; }
.cta-grid a:hover { background: #0d5c56; }
.cta-grid a::after { content: "→"; transition: transform 0.2s ease; }
.cta-grid a:hover::after { transform: translateX(4px); }

/* Markdown 文档阅读器 */
.doc-shell { padding: 112px 0 72px; background: linear-gradient(180deg, #ffffff 0%, var(--surface-muted) 100%); }
.doc-heading { display: grid; gap: 12px; margin-bottom: 28px; }
.doc-heading h1 {
  max-width: 920px; margin: 0;
  color: var(--ink); font-size: clamp(32px, 4vw, 54px); line-height: 1.12; font-weight: var(--weight-strong);
}
.doc-meta { margin: 0; color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; word-break: break-word; }
.doc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.doc-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 28px; align-items: start;
}
.doc-article {
  grid-column: 1; grid-row: 1;
  min-width: 0; padding: 34px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}
.doc-toc {
  grid-column: 2; grid-row: 1;
  position: sticky; top: 96px; display: grid; gap: 12px; padding: 18px;
  background: rgba(255,255,255,0.82); border: 1px solid var(--line); border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}
.doc-toc strong { color: var(--ink); font-size: var(--type-small); }
.doc-toc nav { display: grid; gap: 4px; }
.doc-toc-link {
  display: block; padding: 7px 8px; color: var(--ink-soft); border-radius: var(--radius-sm);
  font-size: 13px; line-height: 1.45;
}
.doc-toc-link:hover { color: var(--teal); background: var(--surface-teal); }
.doc-toc-h3 { padding-left: 18px; font-size: 12px; }
.doc-toc-empty { color: var(--ink-soft); font-size: var(--type-small); }
.doc-content { color: var(--ink); font-size: 16px; line-height: 1.85; }
.doc-content > *:first-child { margin-top: 0; }
.doc-content > *:last-child { margin-bottom: 0; }
.doc-content h1, .doc-content h2, .doc-content h3, .doc-content h4 {
  color: var(--ink); line-height: 1.25; font-weight: var(--weight-strong); scroll-margin-top: 96px;
}
.doc-content h1 { margin: 0 0 22px; font-size: 34px; }
.doc-content h2 { margin: 36px 0 14px; padding-top: 10px; font-size: 26px; border-top: 1px solid var(--line-soft); }
.doc-content h3 { margin: 28px 0 10px; font-size: 21px; }
.doc-content h4 { margin: 22px 0 8px; font-size: 17px; }
.doc-content p { margin: 0 0 16px; color: var(--ink-soft); }
.doc-content strong { color: var(--ink); }
.doc-content a { color: var(--teal); font-weight: var(--weight-medium); text-decoration: underline; text-underline-offset: 3px; }
.doc-content ul, .doc-content ol { margin: 0 0 18px; padding-left: 1.4em; color: var(--ink-soft); }
.doc-content li { margin: 5px 0; }
.doc-content blockquote {
  margin: 22px 0; padding: 16px 18px; color: var(--ink-soft);
  background: var(--surface-teal); border-left: 4px solid var(--teal); border-radius: var(--radius-sm);
}
.doc-content code {
  padding: 2px 5px; color: var(--trust-blue); background: var(--surface-blue); border-radius: 5px;
  font-family: Consolas, "SFMono-Regular", "Liberation Mono", monospace; font-size: 0.92em;
}
.doc-content pre {
  overflow: auto; margin: 20px 0; padding: 18px;
  color: #e5edf7; background: #0b1220; border-radius: var(--radius-card);
}
.doc-content pre code { padding: 0; color: inherit; background: transparent; border-radius: 0; }
.doc-content table {
  display: block; width: 100%; overflow-x: auto; margin: 22px 0; border-collapse: collapse;
  border: 1px solid var(--line); border-radius: var(--radius-card);
}
.doc-content th, .doc-content td {
  padding: 11px 12px; border-bottom: 1px solid var(--line-soft); border-right: 1px solid var(--line-soft);
  text-align: left; vertical-align: top; white-space: nowrap;
}
.doc-content th { color: var(--ink); background: var(--surface-muted); font-weight: var(--weight-strong); }
.doc-content td { color: var(--ink-soft); }
.doc-content tr:last-child td { border-bottom: 0; }
.doc-content th:last-child, .doc-content td:last-child { border-right: 0; }
.doc-content .mermaid {
  display: flex; justify-content: center; overflow-x: auto; margin: 24px 0; padding: 18px;
  background: #fbfdff; border: 1px solid var(--line); border-radius: var(--radius-card);
}
.doc-content .mermaid svg { max-width: 100%; height: auto; }
.doc-loading { min-height: 260px; }
.doc-error { color: var(--ink); background: #fff7ed; border-color: rgba(200,149,60,0.28); }
.mermaid-error, .mermaid-unavailable { color: var(--ink-soft); justify-content: flex-start; white-space: pre-wrap; }

/* 通用页面内导航条 */
.page-nav {
  display: flex; align-items: center; gap: 6px; overflow-x: auto;
  padding-top: 10px; padding-bottom: 10px; margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none; -ms-overflow-style: none;
}
.page-nav::-webkit-scrollbar { display: none; }
.page-nav a { flex: 0 0 auto; padding: 6px 12px; color: var(--ink-soft); font-size: var(--type-small); font-weight: var(--weight-medium); border-radius: var(--radius-sm); }
.page-nav a:hover, .page-nav a.active { color: var(--teal); background: var(--surface-teal); }

/* 媒体查询：1120px */
@media (max-width: 1120px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .subpage-hero .hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 80px; padding-bottom: 64px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .domain-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .anchor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .roadmap-track { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .connection-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .value-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value-flow article:nth-child(2)::after { display: none; }
  .architecture-map { grid-template-columns: 1fr; }
  .step-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow-cloud-grid { grid-template-columns: 1fr; }
  .workflow-cloud-grid .api-node { grid-row: auto; }
  .workflow-hospitals { grid-template-columns: 1fr; }
  .workflow-entry { grid-template-columns: 1fr; gap: 12px; }
  .workflow-arrow { width: 2px; height: 30px; justify-self: center; }
  .workflow-arrow::after { right: auto; left: 50%; top: auto; bottom: -1px; transform: translateX(-50%) rotate(135deg); }
  .cta-grid { grid-template-columns: 1fr; }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-article, .doc-toc { grid-column: auto; grid-row: auto; }
  .doc-toc { position: static; order: -1; }
  .doc-toc nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 媒体查询：760px */
@media (max-width: 760px) {
  :root { --container-px: var(--container-px-mobile); }
  section[id] { scroll-margin-top: 68px; }
  .section-band { padding-top: var(--section-py-mobile); padding-bottom: var(--section-py-mobile); }
  .content-section { padding-top: var(--section-py-mobile); padding-bottom: var(--section-py-mobile); }
  .section-heading { margin-bottom: 32px; }
  .section-heading h2 { font-size: var(--type-section-mobile); }
  .section-heading p { font-size: var(--type-body); }

  .site-header { min-height: 56px; }
  .top-nav { display: none; }
  .menu-toggle { display: inline-flex; }

  .hero { padding-top: 56px; padding-bottom: 48px; }
  .hide-mobile { display: none; }
  .hero-break-desktop { display: none; }
  .hero-break-mobile { display: block; }
  .hero-copy h1 { font-size: var(--type-hero-mobile); margin-bottom: 16px; }
  .hero-copy .hero-subtitle { font-size: 18px; }
  .hero-copy .hero-summary { font-size: var(--type-body); margin-bottom: 20px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-tags { gap: 8px; margin-bottom: 20px; }
  .hero-visual .bridge-network-compact { display: none; }
  .bridge-network-mobile { display: grid; gap: 8px; padding: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-section); box-shadow: var(--shadow-sm); }

  .subpage-hero { padding-top: 56px; padding-bottom: 40px; }
  .subpage-hero h1 { font-size: var(--type-hero-mobile); line-height: 1.35; }
  .subpage-summary { font-size: var(--type-body); margin-bottom: 20px; }
  .subpage-hero-panel { grid-template-columns: 1fr; }
  .subpage-hero-panel span { min-height: 64px; padding: 12px; font-size: var(--type-body); }

  .signal-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 14px var(--container-px); }
  .signal-strip span { min-height: 40px; padding: 6px 10px; font-size: var(--type-small); }

  .feature-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-grid .card { padding: 20px; }
  .content-grid, .content-grid-2, .content-grid-3 { grid-template-columns: 1fr; gap: 14px; }
  .card { padding: 20px; }
  .card h3 { font-size: 18px; }

  .network-layer-zones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .network-capability-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .network-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .network-flow-anchors { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: none; }
  .network-anchor-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .network-anchor-row-compact { grid-template-columns: 1fr; }
  .network-card { min-height: 60px; grid-template-columns: auto 1fr; justify-items: start; place-items: center start; text-align: left; }
  .network-foundation-bar { min-height: 84px; padding: 14px; }
  .network-foundation-bar strong { font-size: 18px; }
  .bridge-network { padding: 16px; gap: 12px; }
  .bridge-network-compact { padding: 14px; gap: 10px; }
  .bridge-network-compact .network-card {
    min-height: 52px;
    grid-template-columns: 1fr;
    justify-items: center;
    place-items: center;
    text-align: center;
  }
  .bridge-network-compact .network-foundation-bar { min-height: 76px; }
  .bridge-network-compact .network-anchor-row-slim {
    width: 100%;
    grid-template-columns: 1fr;
  }

  .domain-grid { grid-template-columns: 1fr; gap: 14px; }
  .anchor-grid { grid-template-columns: 1fr; gap: 14px; }
  .anchor-map { grid-template-columns: 1fr; padding: 16px; }
  .anchor-core { min-height: 80px; font-size: 18px; }
  .anchor-spokes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .anchor-spokes span { min-height: 80px; }

  .resource-grid { grid-template-columns: 1fr; gap: 14px; }
  .resource-card { min-height: auto; padding: 18px; }

  .roadmap-track { grid-template-columns: 1fr; gap: 14px; }
  .connection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }

  .value-strip { padding: 24px var(--container-px); }
  .value-flow { grid-template-columns: 1fr; gap: 10px; }
  .value-flow article { min-height: 64px; }
  .value-flow article::after { display: none; }
  .workflow-guide { grid-template-columns: 1fr; gap: 14px; }
  .workflow-guide article:first-child { grid-column: auto; }
  .workflow-cloud, .workflow-hospital { padding: 16px; }
  .workflow-group-title { flex-direction: column; gap: 4px; }
  .workflow-hospital-grid { grid-template-columns: 1fr; }
  .workflow-hospital-grid .agent-node { grid-row: auto; }
  .workflow-node { padding: 14px; }
  .workflow-outbound { flex-direction: column; gap: 6px; padding: 12px; text-align: center; }
  .queue-node::after, .scheduler-node::after, .store-node::after { display: none; }

  .architecture-map { gap: 14px; }
  .arch-column { padding: 18px; }
  .step-grid { grid-template-columns: 1fr; gap: 14px; }
  .checklist-grid { grid-template-columns: 1fr; gap: 14px; }
  .checklist-grid-six { grid-template-columns: 1fr; }

  .timeline-list { padding-left: 22px; gap: 14px; }
  .timeline-card { grid-template-columns: 1fr; gap: 8px; margin-left: 14px; padding: 18px; }
  .timeline-marker { left: -29px; top: 22px; width: 14px; height: 14px; }
  .timeline-status { justify-self: start; }

  .cta-band { padding: 56px 0; }
  .cta-grid { gap: 14px; }
  .cta-grid article { padding: 20px; }

  .doc-shell { padding-top: 88px; padding-bottom: 48px; }
  .doc-heading { margin-bottom: 22px; }
  .doc-heading h1 { font-size: 30px; }
  .doc-actions { flex-direction: column; align-items: stretch; }
  .doc-actions .btn { width: 100%; }
  .doc-article { padding: 22px; }
  .doc-toc { padding: 14px; }
  .doc-toc nav { grid-template-columns: 1fr; }
  .doc-content { font-size: 15px; line-height: 1.75; }
  .doc-content h1 { font-size: 28px; }
  .doc-content h2 { font-size: 23px; }
  .doc-content h3 { font-size: 19px; }
  .doc-content th, .doc-content td { padding: 10px; }

  .table-wrap { overflow: visible; border: 0; background: transparent; box-shadow: none; }
  .support-table { display: block; width: 100%; min-width: 0; border-collapse: separate; }
  .support-table thead { display: none; }
  .support-table tbody { display: grid; gap: 12px; }
  .support-table tr { display: grid; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
  .support-table th, .support-table td { border-bottom: 0; }
  .support-table td {
    display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 12px;
    padding: 12px 14px; color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6;
    border-bottom: 1px solid var(--line-soft); word-break: break-word;
  }
  .support-table td:last-child { border-bottom: 0; }
  .support-table td::before { color: var(--teal); font-size: var(--type-xs); font-weight: var(--weight-strong); line-height: 1.6; }
  .support-table td:nth-child(1)::before { content: "问题现象"; }
  .support-table td:nth-child(2)::before { content: "重点检查"; }
  .support-table td:nth-child(3)::before { content: "处理建议"; }
  .support-table td:first-child { color: var(--ink-soft); font-weight: var(--weight-medium); }
  .support-table tbody tr:hover { background: var(--surface); }

  .site-footer { padding: 30px var(--container-px) 34px; }
  .site-footer .container.footer-simple { grid-template-columns: 1fr; align-items: flex-start; gap: 14px; }
  .footer-brand { max-width: calc(100% - 70px); }
  .footer-brand strong { white-space: nowrap; }
  .footer-brand-summary { display: block; margin-top: 2px; font-size: 12px; line-height: 1.4; }
  .footer-meta { align-items: flex-start; gap: 3px; width: 100%; padding-right: 70px; font-size: 12px; line-height: 1.6; }
  .police-record { justify-content: flex-start; white-space: normal; }
  .back-to-top { right: 16px; bottom: calc(24px + env(safe-area-inset-bottom)); width: 42px; height: 42px; }
}

/* 兼容旧版子页 Hero 结构 */
.hero-line { display: block; }
.hero-topic { margin: 0 0 18px; color: var(--teal); font-size: 17px; line-height: var(--leading-body); font-weight: var(--weight-medium); }
.hero-proof-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.hero-proof-list span {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; color: var(--ink-soft);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-pill);
  font-size: var(--type-small); font-weight: var(--weight-medium);
}
.hero-proof-list span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }

/* 兼容旧版 CTA 按钮类名 */
.primary-action, .secondary-action {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 20px; border-radius: var(--radius-sm);
  font-size: var(--type-small); font-weight: var(--weight-strong); text-decoration: none; text-align: center;
  transition: all 0.2s ease; cursor: pointer; border: 1px solid transparent;
}
.primary-action { color: #fff; background: var(--teal); border-color: var(--teal); box-shadow: var(--shadow-sm); }
.primary-action:hover { background: var(--teal-dark); border-color: var(--teal-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.secondary-action { color: var(--ink); background: var(--surface); border-color: var(--line); }
.secondary-action:hover { color: var(--teal); border-color: var(--teal); background: var(--surface-teal); transform: translateY(-1px); }

/* 兼容旧版子页 Hero copy 容器 */
.subpage-hero-copy { max-width: 720px; }

/* 兼容旧版社区板块 */
.community-section { background: linear-gradient(180deg, #ffffff 0%, var(--surface-muted) 100%); border-top: 1px solid var(--line); }
.community-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.community-grid article { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.community-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.community-grid h3 { margin: 0 0 10px; font-size: var(--type-card-title); font-weight: var(--weight-strong); color: var(--teal); }
.community-grid p { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }

/* 兼容旧版验收指标网格 */
.acceptance-grid { margin-top: 28px; }
.acceptance-grid article { display: grid; gap: 8px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); transition: all 0.25s ease; }
.acceptance-grid article:hover { box-shadow: var(--shadow-md); border-color: rgba(15,118,110,0.25); transform: translateY(-2px); }
.acceptance-grid strong { color: var(--teal); font-size: var(--type-card-title); }
.acceptance-grid span { color: var(--ink-soft); font-size: var(--type-small); line-height: 1.6; }


/* 媒体查询：480px */
@media (max-width: 480px) {
  .hero-copy h1 { font-size: 26px; }
  .subpage-hero h1 { font-size: 26px; }
  .network-layer-zones { grid-template-columns: 1fr; }
  .network-capability-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .network-flow { grid-template-columns: 1fr; min-height: 20px; }
  .network-flow span:not(:first-child) { display: none; }
  .network-flow-anchors { grid-template-columns: 1fr; }
  .network-anchor-row { grid-template-columns: 1fr; }
  .network-anchor-row-compact { grid-template-columns: 1fr; }
  .network-anchor-nodes { grid-template-columns: 1fr; }
  .bridge-network-compact .network-layer-zones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bridge-network-compact .network-anchor-row-slim { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bridge-network-compact .network-anchor-row-slim .network-card:last-child { grid-column: 1 / -1; }
  .connection-grid { grid-template-columns: 1fr; }
  .anchor-spokes { grid-template-columns: 1fr; }
  .signal-strip { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .js-reveal-ready .reveal { opacity: 1; transform: none; }
}

@media print {
  html { scroll-behavior: auto; }
  .site-header, .mobile-menu, .site-footer, .hero-actions, .hero-visual, .back-to-top { display: none !important; }
  body { background: #fff; color: #000; }
  .hero { padding: 24px 0; background: #fff; }
  .hero-grid { grid-template-columns: 1fr; }
  .section-band { padding: 24px 0; }
  .card, .network-card, .resource-card, .timeline-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
}