/* ============================================================
   上海市工业互联网平台 - 共享样式
   主色 #165DFF | 辅助色 #E8F3FF | 背景白色 | 科技风
   ============================================================ */

:root {
  --primary: #165DFF;
  --primary-dark: #0E42D2;
  --primary-light: #E8F3FF;
  --primary-soft: #F2F7FF;
  --bg: #FFFFFF;
  --bg-soft: #F7F9FC;
  --bg-deep: #0B1F4D;
  --text: #1D2129;
  --text-2: #4E5969;
  --text-3: #86909C;
  --border: #E5E6EB;
  --success: #00B42A;
  --warning: #FF7D00;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(22, 93, 255, .06);
  --shadow: 0 8px 30px rgba(22, 93, 255, .10);
  --shadow-lg: 0 16px 48px rgba(22, 93, 255, .16);
  --container: 1200px;
  --header-h: 68px;
  --font: "Microsoft YaHei", "Source Han Sans SC", "PingFang SC", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* ---------- 文字与颜色工具 ---------- */
.text-primary { color: var(--primary); }
.text-2 { color: var(--text-2); }
.text-3 { color: var(--text-3); }
.text-center { text-align: center; }
.mt-sm { margin-top: 14px; }
.mt-md { margin-top: 28px; }
.muted { color: var(--text-3); font-size: 13px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: 999px; font-size: 15px; font-weight: 600;
  transition: all .25s ease; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(22,93,255,.30); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(22,93,255,.40); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.26); }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary-soft); }
.btn-light { background: var(--primary-light); color: var(--primary-dark); }
.btn-light:hover { background: #d6e8ff; }
.btn-block { width: 100%; }

/* ============================================================
   顶部导航
   ============================================================ */
.header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-h); z-index: 1000;
  background: rgba(255,255,255,.82); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent; transition: all .3s ease;
}
.header.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.header .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 18px; color: var(--text); }
.logo .logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), #4b8bff);
  display: grid; place-items: center; color: #fff; font-size: 19px;
  box-shadow: 0 6px 16px rgba(22,93,255,.35);
}
.logo .logo-sub { font-size: 11px; font-weight: 500; color: var(--text-3); letter-spacing: .5px; display: block; margin-top: -2px; }

.nav-links { display: flex; align-items: center; gap: 3px; }
.nav-links a {
  padding: 8px 11px; border-radius: 8px; color: var(--text-2); font-size: 14px; font-weight: 500;
  transition: all .2s ease; position: relative; white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: var(--primary-soft); }

.nav-right { display: flex; align-items: center; gap: 12px; position: relative; }

/* 搜索（图标 + 可展开） */
.search-icon {
  width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg-soft); cursor: pointer; font-size: 15px; display: grid; place-items: center;
  transition: all .2s; color: var(--text-2);
}
.search-icon:hover, .search-icon.active { color: #fff; background: var(--primary); border-color: var(--primary); }
.search-box { position: absolute; top: calc(100% + 10px); right: 0; width: 300px; display: none; z-index: 1100; }
.search-box.open { display: block; }

/* 语言切换 */
.lang-switch { display: inline-flex; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 999px; padding: 3px; }
.lang-switch button { padding: 5px 13px; border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--text-3); transition: all .2s; }
.lang-switch button.active { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }

/* 搜索框 */
.search-box input {
  width: 100%; padding: 11px 14px 11px 38px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 14px; background: #fff; box-shadow: var(--shadow); transition: all .2s;
}
.search-box input:focus { outline: none; border-color: var(--primary); }
.search-box::before { content: "🔍"; position: absolute; left: 14px; top: 19px; font-size: 13px; opacity: .6; }
.search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; width: 100%; max-height: 360px; overflow-y: auto;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow);
  display: none; z-index: 1100; padding: 6px;
}
.search-results.show { display: block; }
.search-results a { display: block; padding: 10px 12px; border-radius: 8px; color: var(--text-2); font-size: 14px; }
.search-results a:hover { background: var(--primary-soft); color: var(--primary); }
.search-results .sr-empty { padding: 16px; text-align: center; color: var(--text-3); font-size: 13px; }

.menu-toggle { display: none; font-size: 24px; color: var(--text); }

/* ============================================================
   通用区块
   ============================================================ */
section { padding: 78px 0; }
.section-soft { background: var(--bg-soft); }
.section-deep { background: linear-gradient(160deg, #0B1F4D, #123688); color: #fff; }
.section-head { max-width: 760px; margin: 0 auto 46px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1.5px; color: var(--primary);
  background: var(--primary-light); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase;
}
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.3; letter-spacing: -.5px; }
.section-head p { margin-top: 14px; color: var(--text-2); font-size: 16px; }
.section-deep .eyebrow { background: rgba(255,255,255,.14); color: #9ec1ff; }
.section-deep .section-head p { color: #c7d6f5; }

/* 卡片网格 */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
  box-shadow: var(--shadow-sm); transition: transform .28s ease, box-shadow .28s ease, border-color .28s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #cfe0ff; }
.card .card-icon {
  width: 52px; height: 52px; border-radius: 14px; background: var(--primary-light); color: var(--primary);
  display: grid; place-items: center; font-size: 24px; margin-bottom: 16px;
}
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--text-2); font-size: 14px; }
.card .tag { display: inline-block; margin-top: 12px; font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 10px; border-radius: 999px; white-space: nowrap; }

/* 统计数字 */
.stat-card { text-align: center; padding: 28px 18px; }
.stat-card .num { font-size: 34px; font-weight: 800; color: var(--primary); letter-spacing: -.5px; line-height: 1.1; }
.stat-card .num small { font-size: 16px; font-weight: 700; }
.stat-card .label { margin-top: 8px; color: var(--text-2); font-size: 14px; }

/* 表格 */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
thead th { background: var(--primary-soft); color: var(--primary-dark); text-align: left; font-weight: 700; padding: 14px 16px; white-space: nowrap; }
tbody td { padding: 13px 16px; border-top: 1px solid var(--border); color: var(--text-2); vertical-align: top; }
tbody tr:hover { background: var(--bg-soft); }
td strong, th strong { color: var(--text); }

/* 标签/徽章 */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge-blue { background: var(--primary-light); color: var(--primary-dark); }
.badge-green { background: #E8FFEA; color: #009A29; }
.badge-orange { background: #FFF3E8; color: #C25B00; }
.badge-purple { background: #F0EAFF; color: #5A2BE0; }
.stars { color: var(--warning); letter-spacing: 1px; }

/* 列表 */
.feature-list li { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.feature-list li:last-child { border-bottom: none; }
.feature-list .fi-dot { flex: 0 0 auto; width: 22px; height: 22px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: grid; place-items: center; font-size: 12px; font-weight: 700; margin-top: 3px; }

/* 两栏布局 */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }

/* ============================================================
   页面 Banner（章节页通用，带背景图片）
   ============================================================ */
.page-banner {
  position: relative; padding: calc(var(--header-h) + 120px) 0 100px; overflow: hidden;
  background-size: cover; background-position: center; background-repeat: no-repeat; color: #fff;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(11,31,77,.88) 0%, rgba(22,93,255,.62) 100%);
  z-index: 1;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { font-size: 42px; font-weight: 800; letter-spacing: -.5px; }
.page-banner .banner-sub { font-size: 17px; color: #d0def5; max-width: 680px; margin-top: 12px; line-height: 1.7; }
.page-banner .crumb-links { font-size: 13px; color: #bcd4ff; margin-bottom: 8px; }
.page-banner .crumb-links a { color: #bcd4ff; opacity: .75; transition: opacity .2s; }
.page-banner .crumb-links a:hover { opacity: 1; text-decoration: underline; }
@media(max-width:768px){ .page-banner h1 { font-size: 28px; } }

.split.rev { grid-template-columns: 1fr 1.05fr; }

/* 面包屑 */
.crumb { padding: 96px 0 0; }
.crumb .container { font-size: 13px; color: var(--text-3); }
.crumb a:hover { color: var(--primary); }
.crumb .title { font-size: 30px; font-weight: 800; color: var(--text); margin: 10px 0 6px; }
.crumb .desc { color: var(--text-2); max-width: 720px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; padding: calc(var(--header-h) + 70px) 0 80px; overflow: hidden;
  background: radial-gradient(1200px 600px at 80% -10%, #1f4bb8 0%, transparent 60%), linear-gradient(135deg, #0B1F4D 0%, #165DFF 100%);
  background-size: cover; background-position: center;
  color: #fff;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .5; pointer-events: none;
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: center; }
.hero .eyebrow { background: rgba(255,255,255,.14); color: #bcd4ff; }
.hero h1 { font-size: 46px; font-weight: 800; line-height: 1.18; letter-spacing: -.5px; }
.hero h1 .hl { color: #7DB0FF; }
.hero .lead { margin-top: 20px; font-size: 17px; color: #d6e3ff; max-width: 560px; }
.hero-actions { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.hero-stats .hs { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 16px; backdrop-filter: blur(6px); }
.hero-stats .hs .v { font-size: 24px; font-weight: 800; }
.hero-stats .hs .l { font-size: 12.5px; color: #b9cdf3; margin-top: 4px; }

/* 数字人 */
.dh-stage { position: relative; display: grid; place-items: center; }
.dh-avatar {
  width: 300px; height: 300px; border-radius: 30px; position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,.16), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.22); display: grid; place-items: center;
  box-shadow: 0 30px 70px rgba(0,0,0,.3); overflow: hidden;
}
.dh-avatar .ring { position: absolute; inset: 18px; border-radius: 24px; border: 1px dashed rgba(255,255,255,.28); animation: spin 18s linear infinite; }
.dh-avatar svg { width: 150px; height: 150px; }
@keyframes spin { to { transform: rotate(360deg); } }
.dh-bubble {
  position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  background: #fff; color: var(--text); padding: 10px 16px; border-radius: 14px; font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow); white-space: nowrap; animation: floaty 3s ease-in-out infinite;
}
.dh-bubble::after { content: ""; position: absolute; top: -6px; left: 24px; width: 12px; height: 12px; background: #fff; transform: rotate(45deg); }
@keyframes floaty { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-7px); } }

/* 信任条 */
.trust-bar { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 22px 0; }
.trust-bar .container { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; justify-content: space-between; }
.trust-bar .tb-label { color: var(--text-3); font-size: 13px; font-weight: 600; }
.trust-bar .tb-logos { display: flex; gap: 26px; flex-wrap: wrap; align-items: center; }
.trust-bar .tb-logos span { color: var(--text-2); font-weight: 700; font-size: 15px; opacity: .8; }

/* ============================================================
   轮播（实时产业动态）
   ============================================================ */
.carousel { position: relative; }
.carousel-track { display: flex; gap: 22px; transition: transform .5s ease; }
.news-card {
  flex: 0 0 calc(33.333% - 15px); background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .28s, box-shadow .28s;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.news-card .nc-bar { height: 6px; background: linear-gradient(90deg, var(--primary), #4b8bff); }
.news-card .nc-body { padding: 22px; }
.news-card .nc-tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--primary); background: var(--primary-light); padding: 3px 10px; border-radius: 999px; }
.news-card .nc-date { float: right; font-size: 12px; color: var(--text-3); }
.news-card h4 { font-size: 16.5px; font-weight: 700; margin: 12px 0 8px; line-height: 1.4; }
.news-card p { font-size: 13.5px; color: var(--text-2); }
.carousel-nav { display: flex; justify-content: center; gap: 10px; margin-top: 26px; }
.carousel-nav button { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: #fff; color: var(--primary); font-size: 18px; box-shadow: var(--shadow-sm); transition: all .2s; }
.carousel-nav button:hover { background: var(--primary); color: #fff; }

/* ============================================================
   特性/功能区块（前置挖掘、一键对接）
   ============================================================ */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; position: relative; box-shadow: var(--shadow-sm); }
.step-card .step-no { position: absolute; top: -16px; left: 24px; width: 38px; height: 38px; border-radius: 12px; background: var(--primary); color: #fff; font-weight: 800; display: grid; place-items: center; box-shadow: var(--shadow); }
.step-card h3 { margin: 10px 0 8px; font-size: 17px; font-weight: 700; }
.step-card p { color: var(--text-2); font-size: 14px; }

/* CTA 对接 */
.dock-box { background: #fff; border-radius: 20px; padding: 40px; box-shadow: var(--shadow-lg); display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.dock-box .db-left h3 { font-size: 24px; font-weight: 800; margin-bottom: 12px; }
.dock-box .db-left p { color: var(--text-2); }

/* ============================================================
   表单
   ============================================================ */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.field label .req { color: #f53f3f; }
.field input, .field textarea, .field select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px;
  font-family: inherit; background: var(--bg-soft); transition: all .2s; color: var(--text);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--primary); background: #fff; }
.field textarea { resize: vertical; min-height: 96px; }
.form-note { font-size: 13px; color: var(--success); margin-top: 10px; display: none; }
.form-note.show { display: block; }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: #0B1F4D; color: #c7d6f5; padding: 60px 0 26px; }
.footer .f-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; }
.footer .f-logo { display: flex; align-items: center; gap: 11px; color: #fff; font-weight: 800; font-size: 18px; margin-bottom: 16px; }
.footer .f-logo .logo-mark { width: 38px; height: 38px; border-radius: 11px; background: linear-gradient(135deg, var(--primary), #4b8bff); display: grid; place-items: center; color: #fff; font-size: 19px; }
.footer p.slogan { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer .f-links a { display: block; color: #9fb4e0; font-size: 14px; padding: 6px 0; transition: color .2s; }
.footer .f-links a:hover { color: #fff; }
.footer .f-contact li { display: flex; gap: 10px; padding: 7px 0; font-size: 13.5px; color: #9fb4e0; }
.footer .f-contact .ic { color: var(--primary); }
.footer .f-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #7e93c4; }

/* ============================================================
   悬浮组件（联系 + 数字人）
   ============================================================ */
.float-contact {
  position: fixed; right: 22px; bottom: 26px; z-index: 1200; display: flex; flex-direction: column; gap: 12px; align-items: flex-end;
}
.fab {
  width: 54px; height: 54px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 22px;
  display: grid; place-items: center; box-shadow: var(--shadow-lg); transition: transform .2s;
}
.fab:hover { transform: scale(1.08); }
.fab.alt { background: #fff; color: var(--primary); border: 1px solid var(--border); }

/* 数字人聊天面板 */
.dh-panel {
  position: fixed; right: 22px; bottom: 92px; width: 350px; max-width: calc(100vw - 44px); height: 480px; max-height: calc(100vh - 120px);
  background: #fff; border-radius: 18px; box-shadow: var(--shadow-lg); z-index: 1300; display: none; flex-direction: column; overflow: hidden;
  border: 1px solid var(--border);
}
.dh-panel.show { display: flex; }
.dh-panel .dh-head { background: linear-gradient(135deg, #165DFF, #0E42D2); color: #fff; padding: 16px 18px; display: flex; align-items: center; gap: 12px; }
.dh-panel .dh-head .av { width: 40px; height: 40px; border-radius: 12px; background: rgba(255,255,255,.18); display: grid; place-items: center; font-size: 22px; }
.dh-panel .dh-head .nm { font-weight: 700; font-size: 15px; }
.dh-panel .dh-head .st { font-size: 11.5px; color: #bcd4ff; }
.dh-panel .dh-head .close { margin-left: auto; font-size: 20px; color: #fff; opacity: .85; }
.dh-panel .dh-body { flex: 1; overflow-y: auto; padding: 16px; background: var(--bg-soft); display: flex; flex-direction: column; gap: 12px; }
.dh-msg { max-width: 82%; padding: 10px 14px; border-radius: 14px; font-size: 13.5px; line-height: 1.6; }
.dh-msg.bot { background: #fff; border: 1px solid var(--border); align-self: flex-start; border-bottom-left-radius: 4px; }
.dh-msg.user { background: var(--primary); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.dh-chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px 14px; border-top: 1px solid var(--border); background: #fff; }
.dh-chips button { font-size: 12.5px; padding: 6px 12px; border-radius: 999px; background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
.dh-chips button:hover { background: #d6e8ff; }
.dh-input { display: flex; gap: 8px; padding: 12px 14px; border-top: 1px solid var(--border); }
.dh-input input { flex: 1; padding: 9px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 13.5px; }
.dh-input input:focus { outline: none; border-color: var(--primary); }
.dh-input button { width: 38px; height: 38px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 16px; }

/* 回到顶部 */
.to-top { position: fixed; right: 22px; bottom: 150px; width: 44px; height: 44px; border-radius: 50%; background: #fff; color: var(--primary); border: 1px solid var(--border); box-shadow: var(--shadow); display: grid; place-items: center; font-size: 18px; opacity: 0; pointer-events: none; transition: all .3s; z-index: 1150; }
.to-top.show { opacity: 1; pointer-events: auto; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 38px; }
  .hero-grid { grid-template-columns: 1fr; }
  .dh-stage { order: -1; }
  .split, .split.rev, .dock-box { grid-template-columns: 1fr; gap: 28px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer .f-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .nav-links, .nav-right .lang-switch { display: none; }
  .menu-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; padding: 14px 20px; box-shadow: var(--shadow); border-top: 1px solid var(--border); gap: 4px;
  }
  .nav-links.open a { padding: 12px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .news-card { flex: 0 0 100%; }
  .form-row { grid-template-columns: 1fr; }
  .footer .f-top { grid-template-columns: 1fr; }
  .footer .f-bottom { flex-direction: column; }
  .crumb .title { font-size: 24px; }
}

/* 进入动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } html { scroll-behavior: auto; } }


/* ============================================================
   省域平台新增组件（10 页标准：智能空间 / 数字产业 / 工业智造 / 元宇宙 / 智慧城市 / 合作网络）
   ============================================================ */

/* 导航 10 项：居中 + 横向滚动 */
.nav-links { flex: 1; overflow-x: auto; justify-content: center; margin: 0 8px; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a:first-child { margin-left: auto; }
.nav-links a:last-child { margin-right: auto; }
.nav-links a { white-space: nowrap; }

/* Banner 小标签 + 首页城市风貌画廊 */
.banner-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 1px;
  color: #cfe0ff; background: rgba(255,255,255,.16); padding: 5px 15px; border-radius: 999px; margin-bottom: 14px;
}
.city-lead { margin-top: 22px; max-width: 900px; color: var(--text-2); font-size: 15px; line-height: 1.75; }
.city-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 22px; }
.city-card { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--shadow-sm); }
.city-card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.city-card:hover img { transform: scale(1.06); }
.city-card .cc-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 16px; color: #fff; font-size: 14px; font-weight: 600;
  background: linear-gradient(transparent, rgba(0,0,0,.7));
}
@media (max-width: 900px) { .city-gallery { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .city-gallery { grid-template-columns: 1fr; } .city-lead { font-size: 14px; } }

/* 锚点导航 */
.anchor-nav { position: sticky; top: var(--header-h); z-index: 900; background: rgba(255,255,255,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); padding: 10px 0; }
.anchor-nav .container { display: flex; gap: 6px; flex-wrap: wrap; }
.anchor-nav a { font-size: 13px; padding: 7px 14px; border-radius: 999px; color: var(--text-2); background: var(--bg-soft); white-space: nowrap; transition: all .2s; }
.anchor-nav a:hover, .anchor-nav a.active { color: #fff; background: var(--primary); }

/* pill 标签切换 */
.pill-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.pill-tabs button { padding: 9px 18px; border-radius: 999px; background: var(--bg-soft); color: var(--text-2); font-weight: 600; font-size: 14px; white-space: nowrap; border: 1px solid transparent; transition: all .2s; }
.pill-tabs button.active { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.tab-body[data-tabs-body] .tab-pane { display: none; }
.tab-body[data-tabs-body] .tab-pane.active { display: block; }

/* 媒体卡（成果 / 资源库 / 案例） */
.media-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; }
.media-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.media-card .mc-img { width: 100%; height: 158px; object-fit: cover; background: linear-gradient(135deg, var(--primary-soft), #fff); display: grid; place-items: center; color: var(--primary); font-size: 32px; }
.media-card .mc-body { padding: 16px; }
.media-card h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.media-card p { font-size: 13px; color: var(--text-2); }

/* 内容特色大图（带说明） */
.feature-image { margin: 34px 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); position: relative; }
.feature-image img { width: 100%; height: 320px; object-fit: cover; display: block; }
.feature-image .fi-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 20px; color: #fff; font-size: 14px; font-weight: 600; background: linear-gradient(transparent, rgba(0,0,0,.62)); }
@media (max-width: 768px) { .feature-image img { height: 200px; } }

/* media-card / pcard 图片填充（替换 emoji 占位） */
.media-card .mc-img img, .pcard .pc-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 双向赋能双栏 */
.duo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.duo-col { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.duo-col h3 { font-size: 17px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.duo-col.out h3 { color: var(--primary); }
.duo-col.in h3 { color: var(--success); }
.duo-col ul li { padding: 9px 0; border-bottom: 1px dashed var(--border); font-size: 14px; color: var(--text-2); display: flex; gap: 8px; }
.duo-col ul li:last-child { border-bottom: none; }
.duo-col ul li::before { content: "•"; color: var(--primary); }

/* 需求卡 */
.need-card { background: var(--primary-soft); border: 1px solid #cfe0ff; border-radius: 12px; padding: 16px 18px; margin-top: 14px; }
.need-card h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 6px; }
.need-card p { font-size: 13.5px; color: var(--text-2); }

/* 集群分区行 */
.track-row { display: flex; align-items: center; gap: 16px; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: #fff; margin-bottom: 12px; box-shadow: var(--shadow-sm); }
.track-row .tr-no { width: 34px; height: 34px; border-radius: 10px; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 800; flex: 0 0 auto; }
.track-row .tr-main { flex: 1; }
.track-row .tr-main h4 { font-size: 15.5px; }
.track-row .tr-main p { font-size: 13px; color: var(--text-2); }
.track-row .tr-tag { font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 10px; border-radius: 999px; white-space: nowrap; }

/* 工业品商城（京东风格） */
.mall-layout { display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: start; }
.mall-side { position: sticky; top: calc(var(--header-h) + 70px); background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow-sm); }
.mall-side h4 { font-size: 13px; color: var(--text-3); margin-bottom: 10px; padding-left: 4px; }
.mall-side button { display: block; width: 100%; text-align: left; padding: 11px 14px; border-radius: 10px; color: var(--text-2); font-weight: 600; font-size: 14px; white-space: nowrap; transition: all .2s; }
.mall-side button.active, .mall-side button:hover { background: var(--primary); color: #fff; }
.mall-hero { background: linear-gradient(135deg, #0B1F4D, #165DFF); color: #fff; border-radius: var(--radius); padding: 26px 30px; margin-bottom: 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.mall-hero h3 { font-size: 20px; }
.mall-hero p { font-size: 13.5px; color: #c7d6f5; margin-top: 6px; }
.mall-body [data-mall-body] .tab-pane { display: none; }
.mall-body [data-mall-body] .tab-pane.active { display: block; }
.pcard-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.pcard { background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column; }
.pcard:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.pcard .pc-img { height: 116px; background: linear-gradient(135deg, var(--primary-soft), #fff); display: grid; place-items: center; font-size: 34px; color: var(--primary); }
.pcard .pc-body { padding: 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.pcard .pc-name { font-size: 14.5px; font-weight: 700; }
.pcard .pc-meta { font-size: 12px; color: var(--text-3); }
.pcard .pc-price { font-size: 16px; font-weight: 800; color: var(--warning); }
.pcard .pc-btn { margin-top: auto; padding: 8px 12px; border-radius: 999px; background: var(--primary-light); color: var(--primary-dark); font-weight: 600; font-size: 13px; white-space: nowrap; text-align: center; }
.pcard .pc-btn:hover { background: var(--primary); color: #fff; }

/* 元宇宙展厅弹窗 */
.meta-mask { position: fixed; inset: 0; background: rgba(11,31,77,.6); backdrop-filter: blur(4px); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.meta-mask.show { display: flex; }
.meta-modal { background: #fff; border-radius: 18px; max-width: 560px; width: 100%; overflow: hidden; box-shadow: var(--shadow-lg); }
.meta-modal .mm-banner { height: 180px; background: linear-gradient(135deg, #165DFF, #0B1F4D); display: grid; place-items: center; color: #fff; font-size: 46px; position: relative; }
.meta-modal .mm-close { position: absolute; top: 14px; right: 16px; color: #fff; font-size: 24px; line-height: 1; }
.meta-modal .mm-body { padding: 22px; }
.meta-modal .mm-body h3 { font-size: 19px; margin-bottom: 8px; }
.meta-modal .mm-body p { font-size: 14px; color: var(--text-2); }

/* 元宇宙沉浸 Hero（无 banner） */
.meta-hero { position: relative; min-height: 86vh; display: grid; place-items: center; text-align: center; color: #fff; overflow: hidden; background: radial-gradient(900px 500px at 50% 30%, #1f4bb8, transparent 60%), linear-gradient(135deg, #0B1F4D, #06122e); }
.meta-hero .mh-inner { position: relative; z-index: 2; padding: 0 20px; }
.meta-hero h1 { font-size: 46px; font-weight: 800; }
.meta-hero p { margin-top: 16px; font-size: 17px; color: #c7d6f5; max-width: 640px; margin-left: auto; margin-right: auto; }
.meta-hero .hero-actions { margin-top: 30px; justify-content: center; }
.meta-hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(125,176,255,.18) 1px, transparent 1px); background-size: 30px 30px; }

/* 合作网络 Hero（无 banner） */
.net-hero { position: relative; min-height: 64vh; display: grid; place-items: center; text-align: center; color: #fff; background: radial-gradient(800px 500px at 70% 20%, #1f4bb8, transparent 60%), linear-gradient(135deg, #0B1F4D, #06122e); overflow: hidden; }
.net-hero .container { position: relative; z-index: 2; }
.net-hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(125,176,255,.14) 1px, transparent 1px); background-size: 30px 30px; }

/* 辐射地图占位 */
.radial-map { position: relative; min-height: 440px; border-radius: var(--radius); background: linear-gradient(160deg, #0B1F4D, #123688); overflow: hidden; display: grid; place-items: center; color: #fff; padding: 30px; }
.radial-map .rm-center { width: 120px; height: 120px; border-radius: 50%; background: rgba(125,176,255,.2); border: 2px solid #7DB0FF; display: grid; place-items: center; font-weight: 800; font-size: 18px; box-shadow: 0 0 40px rgba(125,176,255,.4); text-align: center; }
.radial-map .rm-node { position: absolute; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.3); padding: 6px 12px; border-radius: 999px; font-size: 12.5px; white-space: nowrap; }

@media (max-width: 900px) {
  .mall-layout { grid-template-columns: 1fr; }
  .mall-side { position: static; display: flex; gap: 8px; flex-wrap: wrap; }
  .mall-side button { width: auto; }
  .duo-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
}