/* ============================================================
   满昱科技有限公司官网 · 全站样式
   设计语言:深藏青 × 暖金 · 高端养老科技风 · 面向养老机构决策者
   ============================================================ */

:root {
  --ink: #0a1b33;          /* 主深色 */
  --navy: #0e2a4a;         /* 深藏青 */
  --navy-2: #12375e;       /* 次深藏青 */
  --navy-soft: #1c4a7c;    /* 亮藏青 */
  --gold: #c4a265;         /* 暖金 */
  --gold-deep: #a8823f;    /* 深金 */
  --gold-light: #f0e4cd;   /* 浅金底 */
  --ivory: #f8f7f4;        /* 纸白背景 */
  --paper: #ffffff;
  --mist: #eef2f7;         /* 浅蓝灰 */
  --line: #e3e0d8;         /* 分隔线 */
  --text: #2b3442;         /* 正文 */
  --text-soft: #5d6878;    /* 次级文字 */
  --teal: #3d6b56;         /* 健康绿(图表点缀) */
  --coral: #d97b5f;        /* 暖橙(警示/强调点缀) */
  --navy-soft-rgb: 28, 74, 124;  /* 主题联动用 */
  --gold-rgb: 196, 162, 101;
  --gold-deep-rgb: 168, 130, 63;
  --radius: 20px;
  --radius-sm: 14px;
  --shadow: 0 18px 50px -18px rgba(24, 24, 24, .24);
  --shadow-soft: 0 8px 28px -12px rgba(24, 24, 24, .16);
  --serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", system-ui, sans-serif;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; overflow-x: clip; }
body { overflow-x: clip; }

/* 防御:grid/flex 子项默认 min-width:auto 会撑破容器(移动端横向溢出根源) */
.split > *, .grid > *, .steps > *, .databand > * { min-width: 0; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--ivory);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 248, 244, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-soft) 100%);
  display: grid; place-items: center;
  color: var(--gold); font-family: var(--serif); font-weight: 700; font-size: 20px;
  box-shadow: var(--shadow-soft);
}
.brand-name { font-family: var(--serif); font-size: 19px; font-weight: 700; color: var(--ink); line-height: 1.2; }
.brand-sub { font-size: 11px; letter-spacing: .18em; color: var(--text-soft); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 14px; border-radius: 999px;
  font-size: 15px; color: var(--text); transition: all .2s;
}
.nav-links a:hover { background: var(--mist); color: var(--ink); }
.nav-links a.active { background: var(--navy); color: #fff; }
.nav-cta {
  margin-left: 10px; padding: 9px 22px !important;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: #fff !important; font-weight: 600;
  box-shadow: 0 4px 12px -5px rgba(20, 24, 32, .32);
}
.nav-cta:hover { filter: brightness(1.06); }

.nav-toggle { display: none; border: none; background: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 通用版块 ---------- */
.section { padding: 92px 0; }
.section.tight { padding: 60px 0; }
.section.alt { background: var(--paper); }
.section.dark { background: linear-gradient(160deg, var(--navy) 0%, var(--ink) 100%); color: #e8edf4; }
.section.dark .eyebrow { color: var(--gold); }
.section.dark h2, .section.dark h3 { color: #fff; }
.section.dark p { color: #b9c5d4; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .22em; font-weight: 600;
  color: #8a6a33; text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 1.5px; background: var(--gold); }

h1, h2, h3 { font-family: var(--serif); color: var(--ink); line-height: 1.3; }
h2.sec-title { font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 14px; }
.sec-lead { max-width: 720px; color: var(--text-soft); font-size: 17px; }
.sec-head { margin-bottom: 46px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-lead { margin: 0 auto; }
.sec-head.center .eyebrow::before { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 999px;
  font-size: 16px; font-weight: 600; transition: all .22s; border: none; cursor: pointer;
}
.btn-gold { background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%); color: #fff; box-shadow: 0 10px 26px -8px rgba(28, 28, 28, .42); }
.btn-gold:hover { transform: translateY(-2px); filter: brightness(1.05); }
.btn-ghost { border: 1.5px solid rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); transform: translateY(-2px); }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(4px); }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(var(--navy-soft-rgb), .55) 0%, transparent 60%),
    radial-gradient(700px 420px at -8% 108%, rgba(var(--gold-rgb), .18) 0%, transparent 55%),
    linear-gradient(158deg, var(--ink) 0%, var(--navy) 58%, var(--navy-2) 100%);
  color: #fff; padding: 84px 0 108px;
}
.hero::after {
  content: ""; position: absolute; inset: auto -10% -55% -10%; height: 70%;
  background: radial-gradient(50% 60% at 50% 100%, rgba(var(--gold-rgb), .16), transparent 70%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 18px; border-radius: 999px;
  background: rgba(var(--gold-rgb), .14); border: 1px solid rgba(var(--gold-rgb), .4);
  color: var(--gold); font-size: 13.5px; letter-spacing: .12em; margin-bottom: 26px;
}
.hero h1 {
  color: #fff; font-size: clamp(34px, 5vw, 56px); line-height: 1.22; margin-bottom: 22px; font-weight: 700;
}
.hero h1 em { font-style: normal; color: var(--gold); }
.hero-sub { color: #c3cedd; font-size: 18px; max-width: 560px; margin-bottom: 38px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 46px; }
.hero-point { display: flex; align-items: baseline; gap: 10px; }
.hero-point b { font-family: var(--serif); font-size: 30px; color: var(--gold); }
.hero-point span { color: #9fb0c4; font-size: 14px; }

.hero-visual { position: relative; }
.hero-frame {
  position: relative; overflow: hidden;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 20px;
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, .55);
}
.hero-frame .hero-photo {
  display: block; width: 100%; height: 100%;
  aspect-ratio: 4 / 3.55; object-fit: cover; border-radius: 19px;
}
.hero-photo-veil {
  position: absolute; inset: 0; border-radius: 19px; pointer-events: none;
  background:
    radial-gradient(120% 60% at 85% 0%, rgba(var(--gold-rgb), .16), transparent 55%),
    linear-gradient(180deg, transparent 40%, rgba(10, 27, 51, .78) 100%);
}
.hero-photo-tag { position: absolute; left: 20px; right: 20px; bottom: 18px; color: #fff; }
.hero-photo-tag .hpt-title {
  display: block; font-family: var(--serif); font-size: 19px; font-weight: 700;
  letter-spacing: .04em; text-shadow: 0 2px 10px rgba(0,0,0,.35);
}
.hero-photo-tag .hpt-sub { display: block; font-size: 12.5px; color: #d9e2ec; margin-top: 3px; }

/* 告警浮卡(照片右上,软硬联动示意) */

/* ---------- 信任条 ---------- */
.trustbar { background: var(--navy); color: #cfd9e6; padding: 16px 0; }
.trustbar .container { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 14px; }
.trustbar b { color: #fff; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 26px; }
.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: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  transition: all .25s; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card .icon {
  width: 56px; height: 56px; border-radius: 15px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: var(--gold); display: grid; place-items: center;
  font-size: 26px; margin-bottom: 20px;
}
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--text-soft); font-size: 15.5px; }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14.5px; font-weight: 600; color: #8a6a33; }

.pillar { text-align: left; }
.pillar .num { font-family: var(--serif); font-size: 15px; color: var(--gold-deep); letter-spacing: .2em; margin-bottom: 12px; }

/* ---------- 图文分栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.rev .split-media { order: 2; }
.split h3 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 16px; }
.split p { color: var(--text-soft); margin-bottom: 14px; }
.checklist { margin-top: 22px; display: grid; gap: 13px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; }
.checklist .ck {
  flex: none; width: 22px; height: 22px; border-radius: 50%; margin-top: 3px;
  background: var(--gold-light); color: var(--gold-deep);
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
}

/* ---------- 产品界面模拟(mockup 浏览器窗) ---------- */
.shot { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid rgba(10, 27, 51, .08); background: #fff; }
.shot-bar { display: flex; align-items: center; gap: 8px; padding: 11px 16px; background: #eef1f5; border-bottom: 1px solid #e2e6ec; }
.shot-bar i { width: 11px; height: 11px; border-radius: 50%; background: #d3d8e0; }
.shot-bar i:nth-child(1) { background: #f0908a; } .shot-bar i:nth-child(2) { background: #f2cd79; } .shot-bar i:nth-child(3) { background: #92d3a6; }
.shot-bar .addr { margin-left: 10px; flex: 1; background: #fff; border-radius: 7px; padding: 3px 14px; font-size: 12px; color: #8a93a3; }
.shot-body { padding: 20px; background: #f7f9fb; }

/* 迷你系统 UI */
.mu { border-radius: 14px; background: #fff; border: 1px solid #e6e9ef; overflow: hidden; }
.mu-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid #eef1f5; font-size: 12.5px; color: #5d6878; }
.mu-top b { color: var(--ink); font-size: 13px; }
.mu-chip { background: var(--mist); border-radius: 999px; padding: 2px 10px; font-size: 11px; }
.mu-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 14px; }
.mu-stat { border: 1px solid #e9edf2; border-radius: 10px; padding: 12px; background: #fbfcfe; }
.mu-stat b { display: block; font-size: 19px; color: var(--ink); font-family: var(--serif); }
.mu-stat span { font-size: 11px; color: #8a93a3; }
.mu-stat .trend { float: right; font-size: 10.5px; color: var(--teal); }
.mu-rows { padding: 0 14px 14px; display: grid; gap: 8px; }
.mu-row { display: flex; align-items: center; gap: 10px; border: 1px solid #edf0f4; border-radius: 9px; padding: 9px 12px; font-size: 12.5px; color: #3d4756; }
.mu-row .st { margin-left: auto; font-size: 11px; border-radius: 999px; padding: 1px 9px; }
.st.ok { background: #e6efe9; color: var(--teal); }
.st.warn { background: #fbe9e2; color: var(--coral); }
.st.doing { background: #eaf0fb; color: #3d6bb3; }
.mu-bars { display: flex; align-items: flex-end; gap: 7px; height: 92px; padding: 6px 14px 12px; }
.mu-bars i { flex: 1; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, #3d6bb3, #7fa3d8); }
.mu-bars i.gold { background: linear-gradient(180deg, var(--gold-deep), var(--gold)); }
.mu-beds { display: grid; grid-template-columns: repeat(8, 1fr); gap: 7px; padding: 14px; }
.bed { height: 34px; border-radius: 7px; display: grid; place-items: center; font-size: 10px; color: #fff; }
.bed.free { background: #dfe7ef; color: #8494a8; }
.bed.live { background: linear-gradient(135deg, #3d6bb3, #5d8bd0); }
.bed.warn { background: linear-gradient(135deg, var(--coral), #e89b83); }
.mu-vitals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 14px; }
.mu-vital { border: 1px solid #e9edf2; border-radius: 10px; padding: 12px; text-align: center; }
.mu-vital b { font-size: 18px; color: var(--ink); font-family: var(--serif); display: block; }
.mu-vital span { font-size: 11px; color: #8a93a3; }
.mu-vital em { font-style: normal; font-size: 10.5px; color: var(--teal); }
.ring { position: relative; width: 66px; height: 66px; margin: 6px auto 2px; border-radius: 50%;
  background: conic-gradient(var(--gold-deep) 0 86%, #e8e2d5 86% 100%);
  display: grid; place-items: center; }
.ring::before { content: ""; position: absolute; width: 50px; height: 50px; border-radius: 50%; background: #fff; }
.ring b { position: relative; font-size: 15px; color: var(--ink); font-family: var(--serif); }
.shot-note { text-align: center; font-size: 12.5px; color: var(--text-soft); margin-top: 14px; }

/* ---------- 手机壳 ---------- */
.phone {
  width: 290px; margin: 0 auto; border-radius: 38px; background: var(--ink);
  padding: 12px; box-shadow: var(--shadow);
}
.phone .screen { border-radius: 28px; overflow: hidden; background: #f6f8fa; }
.phone .notch { width: 110px; height: 20px; background: var(--ink); border-radius: 0 0 14px 14px; margin: 0 auto; position: relative; z-index: 2; }
.phone img { width: 100%; display: block; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-soft); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
thead th {
  background: var(--navy); color: #fff; text-align: left;
  padding: 15px 22px; font-weight: 600; white-space: nowrap;
}
tbody td { padding: 15px 22px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:nth-child(even) { background: #fbfaf7; }
td b { color: var(--ink); }

/* ---------- 时间线 / 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding-top: 26px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: -14px; left: 0;
  font-family: var(--serif); font-size: 40px; color: transparent;
  -webkit-text-stroke: 1.2px var(--gold); opacity: .85;
}
.step h3 { font-size: 18px; margin: 10px 0 8px; }
.step p { font-size: 14.5px; color: var(--text-soft); }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 20px 26px; transition: all .2s;
}
.faq details[open] { box-shadow: var(--shadow-soft); border-color: var(--gold); }
.faq summary { cursor: pointer; font-weight: 600; font-size: 16.5px; color: var(--ink); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--gold-deep); font-weight: 400; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq-a { margin-top: 12px; color: var(--text-soft); font-size: 15px; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background:
    radial-gradient(600px 300px at 12% 0%, rgba(var(--gold-rgb), .25), transparent 60%),
    linear-gradient(135deg, var(--navy) 0%, var(--ink) 100%);
  border-radius: 26px; color: #fff; text-align: center;
  padding: 74px 40px; box-shadow: var(--shadow);
}
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 14px; }
.cta-band p { color: #b9c5d4; max-width: 560px; margin: 0 auto 32px; }

/* ---------- 页头(子页) ---------- */
.pagehead { padding: 84px 0 66px; position: relative; overflow: hidden; }
.pagehead .eyebrow { color: var(--gold-deep); }
.pagehead h1 { font-size: clamp(30px, 4.2vw, 46px); margin-bottom: 16px; }
.pagehead .sec-lead { font-size: 17.5px; }
.crumbs { font-size: 13.5px; color: var(--text-soft); margin-bottom: 26px; }
.crumbs a:hover { color: var(--gold-deep); }

/* ---------- 通用深色数据带 ---------- */
.databand { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.databand .d { text-align: center; padding: 26px 12px; border-radius: var(--radius-sm); background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1); }
.databand b { display: block; font-family: var(--serif); font-size: 34px; color: var(--gold); }
.databand span { font-size: 13.5px; color: #9fb0c4; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: #b3c1d0; padding: 70px 0 0; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 48px; }
.site-footer h4 { color: #fff; font-size: 16.5px; margin-bottom: 18px; font-weight: 600; letter-spacing: .03em; }
.site-footer li { margin-bottom: 11px; }
.site-footer a:hover { color: var(--gold); }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: #7f92a6; }
.footer-brand p { margin-top: 18px; line-height: 1.85; color: #a5b3c4; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact .fi { color: var(--gold); flex: none; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 22px 0; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px; color: #7f90a6; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split.rev .split-media { order: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 44px; }
  .databand { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .section { padding: 64px 0; }
  .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch;
    background: var(--ivory); padding: 18px 22px 26px; gap: 4px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { margin: 8px 0 0; text-align: center; justify-content: center; }
  .nav-toggle { display: block; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 90px; }
  .mu-cards { grid-template-columns: repeat(2, 1fr); }
  .mu-beds { grid-template-columns: repeat(6, 1fr); }
  .brand-sub { display: none; }
}

/* ============================================================
   v1.1 追加:品牌 Logo / SVG 图标 / 主题配色系统 / 切换器
   ============================================================ */

/* ---------- 品牌 Logo ---------- */
.brand-logo {
  width: 44px; height: 44px; border-radius: 50%; flex: none;
  object-fit: cover;
  box-shadow: 0 4px 12px -4px rgba(24, 24, 24, .4);
  border: 1.5px solid var(--gold-light);
}
.footer-brand .brand-logo { border-radius: 12px; }

/* ---------- SVG 线性图标(替换 emoji,去"模板味") ---------- */
.ic {
  width: 26px; height: 26px;
  fill: none; stroke: currentColor;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
  display: block;
}
.ic-s { width: 15px; height: 15px; stroke-width: 1.9; }
.card .icon .ic { width: 27px; height: 27px; }
.fi { display: inline-flex; }


body, .site-header, .card, .trustbar, .faq details, .table-wrap, .mu {
  transition: background-color .35s ease, border-color .35s ease, color .35s ease;
}

/* ---------- Hero 等高线纹理(设计感装饰,去"模板味") ---------- */
.hero-deco { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-deco svg { position: absolute; right: -6%; bottom: -12%; width: 58%; max-width: 720px; opacity: .5; }
.hero-deco .contour { fill: none; stroke: #c4a265; stroke-width: 1; }

/* ---------- 深色带顶部金色发丝线 ---------- */
.section.dark { position: relative; }
.section.dark::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1.5px;
  background: linear-gradient(90deg, transparent 5%, var(--gold) 50%, transparent 95%);
  opacity: .55;
}

/* ---------- v1.2:hero 照片视觉响应式微调 ---------- */
@media (max-width: 1024px) {
  .hero-visual { max-width: 560px; margin: 0 auto; width: 100%; }
}
@media (max-width: 760px) {
}

/* ---------- v1.4:四端卡图标(深色区金色)与终端名 ---------- */
.term-ic {
  display: inline-grid; place-items: center; width: 46px; height: 46px; border-radius: 14px;
  background: rgba(var(--gold-rgb), .12); border: 1px solid rgba(var(--gold-rgb), .38);
  color: var(--gold); margin-bottom: 14px;
}
.term-ic .ic { width: 24px; height: 24px; }
#multi .term-name {
  display: block; font-size: 17px; color: #fff;
  font-family: var(--sans); font-weight: 700; margin-bottom: 2px;
}

/* ---------- v1.6:示意图列表行分类色点(替换emoji,企业控制台风格) ---------- */
.mu-ic { display: inline-block; width: 7px; height: 7px; border-radius: 2px; background: #3d6bb3; margin-right: 9px; flex: none; }
.mu-ic.g { background: var(--teal); }
.mu-ic.o { background: var(--coral); }
.mu-ic.n { background: #c6cdd6; }
.mu-chip .mu-ic { margin-right: 6px; vertical-align: 0; }

/* ---------- v1.7:硬件产品渲染图块 ---------- */
.hw-fig {
  margin: 0 0 22px; border-radius: 14px; overflow: hidden;
  background: #0d1e33;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.07);
}
.hw-fig img { display: block; width: 100%; }

/* ---------- v2.0:双轨业务分流卡 ---------- */
.track-card { padding: 38px 36px; display: flex; flex-direction: column; }
.track-card .btn { margin-top: auto; align-self: flex-start; }
.track-card .checklist { margin-bottom: 26px; }
.track-tag {
  display: inline-flex; align-self: flex-start;
  padding: 6px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: .08em;
  margin-bottom: 18px;
}
.track-tag.tag-b { background: var(--navy); color: #fff; }
.track-tag.tag-c { background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%); color: #fff; }
.track-card h3 { font-size: 22px; }

/* ---------- v2.1:双轨导航下拉菜单 ---------- */
.nav-drop { position: relative; }
.nav-drop-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 8px 14px; border-radius: 999px; border: none; background: none;
  font: inherit; font-size: 15px; color: var(--text); cursor: pointer; transition: all .2s;
}
.nav-drop-btn .caret { font-size: 11px; transition: transform .2s; color: var(--text-soft); }
.nav-drop-btn:hover { background: var(--mist); color: var(--ink); }
.nav-drop-btn.active { background: var(--navy); color: #fff; }
.nav-drop-btn.active .caret { color: rgba(255,255,255,.75); }
.nav-drop-menu {
  position: absolute; top: calc(100% + 9px); left: 0; z-index: 60;
  min-width: 158px; padding: 7px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu,
.nav-drop.open .nav-drop-menu { opacity: 1; visibility: visible; transform: none; }
.nav-drop:hover .caret, .nav-drop.open .caret { transform: rotate(180deg); }
.nav-drop-menu a {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 13px; border-radius: 9px;
  font-size: 14.5px; color: var(--text); white-space: nowrap;
}
.nav-drop-menu a .ic { color: var(--gold-deep); }
.nav-drop-menu a:hover { background: var(--mist); color: var(--ink); }
.nav-drop-menu a.active { background: var(--navy); color: #fff; }
.nav-drop-menu a.active .ic { color: var(--gold); }
@media (max-width: 760px) {
  .nav-drop-btn { width: 100%; justify-content: space-between; padding: 12px 14px; }
  .nav-drop-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; background: none; padding: 0 0 6px 10px;
    min-width: 0;
  }
  .nav-drop-menu a { padding: 10px 14px; }
}

/* ============================================================
   v2.4 质感工艺层:噪点材质 / 版式节奏 / 卡片工艺 / 细节精修
   ============================================================ */

/* ---------- 1) 全局细噪点材质(胶片颗粒感,极淡) ---------- */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 2147483000;
  pointer-events: none; opacity: .05; mix-blend-mode: multiply;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.85" numOctaves="2" stitchTiles="stitch"/></filter><rect width="100%25" height="100%25" filter="url(%23n)"/></svg>');
}
@media (max-width: 760px) { body::after { opacity: .035; } }

/* ---------- 2) 版式节奏:区块间距分级(疏密呼吸) ---------- */
.section { padding: 108px 0; }
.section.tight { padding: 66px 0; }
#rating, #cend { padding: 128px 0; }
.sec-head { margin-bottom: 54px; }
.sec-lead { max-width: 620px; font-size: 16.5px; line-height: 1.85; }

/* 居中标题加金色短划(仪式感) */
.sec-head.center .sec-title { position: relative; }
.sec-head.center .sec-title::after {
  content: ""; display: block; width: 44px; height: 2px; margin: 18px auto 0;
  background: linear-gradient(90deg, transparent, var(--gold-deep), transparent);
}

/* 左对齐版式(编辑感):标题下加长金线 */
.sec-head:not(.center) .sec-title { padding-bottom: 18px; position: relative; }
.sec-head:not(.center) .sec-title::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 72px; height: 2px; background: var(--gold-deep);
}

/* ---------- 3) 卡片工艺:双层阴影 + 顶部金线 + 悬停精修 ---------- */
.card {
  border-radius: 20px;
  box-shadow: 0 1px 2px rgba(24, 24, 24, .04), 0 10px 34px -18px rgba(24, 24, 24, .13);
  transition: transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s, border-color .3s;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 10%; right: 10%; height: 1.5px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity .3s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 2px 4px rgba(24,24,24,.05), 0 24px 54px -20px rgba(24,24,24,.21);
  border-color: rgba(196,162,101,.45);
}
.card:hover::before { opacity: .8; }

/* 图标块缩小收紧(降低图标存在感,文字为主) */
.card .icon { width: 50px; height: 50px; border-radius: 14px; margin-bottom: 18px; }
.card .icon .ic { width: 25px; height: 25px; }

/* ---------- 4) 按钮:去渐变改纯色(高级感),hover 提亮 ---------- */
.btn-gold {
  background: #8a6a33;
  box-shadow: 0 8px 22px -10px rgba(28, 28, 28, .42);
}
.btn-gold:hover { background: #8f7038; filter: none; transform: translateY(-2px); }
.nav-cta {
  background: #8a6a33;
  box-shadow: 0 6px 16px -8px rgba(28, 28, 28, .40);
}
.nav-cta:hover { background: #8f7038; filter: none; }
.track-tag.tag-c { background: #8a6a33; }

/* ---------- 5) hero 对比度精修 ---------- */
.hero h1 { font-size: clamp(36px, 5.4vw, 60px); letter-spacing: .01em; }
.hero-sub { max-width: 540px; font-size: 17px; }
.hero-badge { font-size: 12.5px; letter-spacing: .16em; }

/* ---------- 6) 导航与链接工艺 ---------- */
.nav-links a { position: relative; }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: 3px; height: 1.5px;
  background: var(--gold-deep); transition: left .25s, right .25s;
}
.nav-links a:not(.nav-cta):hover { background: none; }
.nav-links a:not(.nav-cta):hover::after { left: 14px; right: 14px; }
.nav-links a.active:not(.nav-cta)::after { display: none; }

.more { position: relative; }
.more::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .3s;
}
.more:hover::after { transform: scaleX(1); transform-origin: left; }
.more:hover .arr { transform: translateX(4px); }

/* ---------- 7) FAQ 工艺 ---------- */
.faq details { padding: 22px 28px; border-radius: 14px; }
.faq summary { font-size: 17px; }
.faq details[open] summary { color: var(--gold-deep); }
.faq details[open] { border-color: rgba(196,162,101,.5); }

/* ---------- 8) 图片工艺:hover 微缩放 ---------- */
.hero-frame, .shot { transition: transform .35s cubic-bezier(.2,.7,.3,1), box-shadow .35s; }
.hero-frame:hover { transform: translateY(-3px); }
.shot:hover { transform: translateY(-3px); box-shadow: 0 24px 60px -22px rgba(24,24,24,.3); }

/* ---------- 9) 超大衬线编号(三支柱数字放大为水印) ---------- */
.pillar .num { font-size: 58px; line-height: 1; opacity: .28; -webkit-text-stroke: 0; color: var(--gold-deep); }
.step::before { font-size: 52px; }

/* ---------- 10) 深色金句区:字距仪式感 ---------- */
.section.dark .sec-title { letter-spacing: .06em; }
.cta-band h2 { letter-spacing: .04em; }

/* ---------- 11) 表格工艺 ---------- */
.table-wrap { border-radius: 16px; }
thead th { font-weight: 600; letter-spacing: .04em; font-size: 14.5px; }

/* ---------- v2.5:开源衬线字体(思源宋体/Noto Serif SC,loli 镜像按需切片) ---------- */
.hero h1 { font-weight: 900; }
.pillar .num, .step::before { font-weight: 700; }

/* ============================================================
   v2.6 动效层:按压反馈 / 图片内缩放 / FAQ平滑 / 下拉级联 / 进度条
   ============================================================ */

/* 1) 按压反馈 */
.btn:active, .nav-cta:active { transform: scale(.96); }

/* 2) 图片容器内微缩放(图动框不动) */
.hero-frame .hero-photo, .hw-fig img { transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.hero-frame:hover .hero-photo { transform: scale(1.035); }
.hw-fig:hover img { transform: scale(1.04); }

/* 3) FAQ 平滑展开(grid-rows 技巧) */
.faq-body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .38s cubic-bezier(.2,.7,.3,1); }
.faq details[open] .faq-body { grid-template-rows: 1fr; }
.faq-inner { overflow: hidden; }
.faq-inner .faq-a { margin-top: 12px; }

/* 4) 下拉菜单子项级联滑入 */
@keyframes navIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.nav-drop:hover .nav-drop-menu a,
.nav-drop:focus-within .nav-drop-menu a,
.nav-drop.open .nav-drop-menu a { animation: navIn .3s both; }
.nav-drop:hover .nav-drop-menu a:nth-child(2),
.nav-drop:focus-within .nav-drop-menu a:nth-child(2),
.nav-drop.open .nav-drop-menu a:nth-child(2) { animation-delay: .04s; }
.nav-drop:hover .nav-drop-menu a:nth-child(3),
.nav-drop:focus-within .nav-drop-menu a:nth-child(3),
.nav-drop.open .nav-drop-menu a:nth-child(3) { animation-delay: .08s; }
.nav-drop:hover .nav-drop-menu a:nth-child(4),
.nav-drop:focus-within .nav-drop-menu a:nth-child(4),
.nav-drop.open .nav-drop-menu a:nth-child(4) { animation-delay: .12s; }
.nav-drop:hover .nav-drop-menu a:nth-child(5),
.nav-drop:focus-within .nav-drop-menu a:nth-child(5),
.nav-drop.open .nav-drop-menu a:nth-child(5) { animation-delay: .16s; }

/* 5) 顶部滚动进度条 */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 2.5px; width: 0; z-index: 3000;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold));
  pointer-events: none;
}

/* 6) 系统减少动态偏好兜底 */
@media (prefers-reduced-motion: reduce) {
  #scroll-progress, .hero-frame .hero-photo, .hw-fig img { transition: none; }
  .nav-drop:hover .nav-drop-menu a, .nav-drop:focus-within .nav-drop-menu a, .nav-drop.open .nav-drop-menu a { animation: none; }
}

/* ---------- v2.7:impeccable 整改层 ---------- */
.card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.card-head .ic { width: 27px; height: 27px; color: var(--gold-deep); flex: none; }
.card-head h3, .card-head .h3s { margin: 0; font-size: 19.5px; }
.h3s { font-family: var(--serif); color: var(--ink); line-height: 1.35; font-weight: 700; }


/* ============================================================
   v2.9 impeccable 技能优化:typeset / polish / harden / optimize
   ============================================================ */

/* ---- typeset:数字等宽对齐(数据点/表格/驾驶舱) ---- */
b, strong, th, td, .hero-point b, .databand b, .mu-stat b, .mu-vital b {
  font-variant-numeric: tabular-nums;
}

/* ---- polish:键盘焦点环(金色,全站可达性) ---- */
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid #8a6a33;
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---- polish:选区配色(藏青底金字) ---- */
::selection { background: var(--navy); color: var(--gold); }
.section.dark ::selection, .hero ::selection, .cta-band ::selection { background: var(--gold); color: var(--ink); }

/* ---- polish:滚动条主题化(藏青轨道金滑块) ---- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ivory); }
::-webkit-scrollbar-thumb { background: var(--navy-2); border-radius: 999px; border: 2px solid var(--ivory); }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }
* { scrollbar-width: thin; scrollbar-color: var(--navy-2) var(--ivory); }

/* ---- harden:图片加载失败兜底(暖灰底,不出白块破图) ---- */
.hero-photo, .hw-fig img, .brand-logo {
  background: linear-gradient(135deg, #e9e5dd 0%, #d9d4c9 100%);
}

/* ============================================================
   v2.10.1 修复:步骤编号与标题重合
   v2.4 将 .step::before 编号放大至 52px 未同步调间距,叠加思源宋体
   行高偏大导致编号基线压到标题。改为编号回归文档流独占一行,
   不再依赖绝对定位与字体度量,任何断点/字体/缩放都不重合。
   影响页面:index(#cend 四步)/supply(集采四步)/platform/ecosystem。
   ============================================================ */
.step { padding-top: 0; }
.step::before { position: static; display: block; line-height: .95; margin-bottom: 12px; }
.step h3 { margin-top: 0; }

/* ============================================================
   v2.11 首屏自适应:信任条(trustbar)100% 可见(终版)
   hero 最小高度由 JS 实算 = 视口高 − 导航高 − 信任条高(仅量这两个
   稳定值),信任条底边贴住首屏折叠线;紧凑档由视口高度媒体查询
   决定(内容自然高约711px+导航75+信任条57≈843px,断点880留余量;
   700px 以下再紧一档),不做运行时高度测量,免疫字体加载时序。
   <1024 窄屏 hero 单列堆叠,物理放不下,不参与(保持原布局)。
   ============================================================ */
.hero--fit { display: flex; align-items: center; padding-top: 44px; padding-bottom: 44px; }
.hero--fit .container { width: 100%; }

@media (max-height: 880px) and (min-width: 1025px) {
  .hero--fit { padding-top: 18px; padding-bottom: 18px; }
  .hero--fit .hero-badge { margin-bottom: 13px; }
  .hero--fit h1 { font-size: clamp(32px, 4.2vw, 47px); line-height: 1.18; margin-bottom: 16px; }
  .hero--fit .hero-sub { font-size: 16.5px; margin-bottom: 16px; }
  .hero--fit .hero-points { margin-top: 16px; gap: 20px; }
  .hero--fit .hero-point b { font-size: 26px; }
}

@media (max-height: 700px) and (min-width: 1025px) {
  .hero--fit .hero-badge { margin-bottom: 10px; padding: 5px 14px; }
  .hero--fit h1 { font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 12px; }
  .hero--fit .hero-sub { font-size: 15.5px; margin-bottom: 12px; line-height: 1.6; }
  .hero--fit .hero-actions .btn { padding: 10px 20px; }
  .hero--fit .hero-points { margin-top: 12px; gap: 16px; }
  .hero--fit .hero-point b { font-size: 22px; }
}

/* ============================================================
   v2.13 内页配图:横幅带(photo-band)与暗区竖像(cta-split)
   图源:即梦 AI 生成图裁切(见 README 素材说明),lazy 加载,
   width/height 属性防布局抖动。
   ============================================================ */
.photo-band { margin: 0 0 46px; border-radius: 20px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); background: #e9e5dd; }
.photo-band img { display: block; width: 100%; height: auto; transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.photo-band:hover img { transform: scale(1.02); }

.cta-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 52px; align-items: center; text-align: left; padding: 60px 52px; }
.cta-split .cta-copy { min-width: 0; }
.cta-split .cta-copy p { margin: 0 0 32px; }
.cta-photo { margin: 0; border-radius: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,.16); }
.cta-photo img { display: block; width: 100%; height: auto; }

@media (max-width: 900px) {
  .cta-split { grid-template-columns: 1fr; gap: 36px; padding: 48px 28px; }
  .cta-split .cta-photo { max-width: 400px; margin: 0 auto; width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .photo-band img { transition: none; } }

/* ============================================================
   v2.14 关于页公司画像区:左右两列视觉等高
   左列文字放大拉疏(标题28/正文17.5/行高2.2/段距30),
   右列三卡收紧(内边距26/28),两列高度收敛到接近。
   ============================================================ */
.split-balance > div:first-child h2 { font-size: 28px; margin-bottom: 26px; }
.split-balance > div:first-child p { font-size: 17.5px; line-height: 2.3; margin-bottom: 32px; }
.split-balance > div:first-child p:last-child { margin-bottom: 0; }
.split-balance .card { padding: 24px 26px; }
@media (max-width: 760px) {
  .split-balance > div:first-child h2 { font-size: 25px; margin-bottom: 18px; }
  .split-balance > div:first-child p { font-size: 16.5px; line-height: 2.0; margin-bottom: 22px; }
}

/* v2.14.1 修复:about 画像区横幅被塞进 split 两列网格只占半列——
   grid-column 横跨全列,恢复容器满宽 */
.split .photo-band { grid-column: 1 / -1; margin-top: 54px; }

/* ============================================================
   v2.15 FAQ 两列排版 + 展开全部
   ≥1025px:首条(默认展开)横跨两列作示例,其余 5+5 两列;
   高度 ~1180px → ~650px。展开全部按钮一-key解决逐条点击。
   移动端保持单列,同样有按钮。内容零删改,GEO 无损。
   ============================================================ */
.faq-tools { max-width: 980px; margin: -4px auto 16px; text-align: right; }
.faq-toggle-all {
  padding: 7px 18px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--paper); color: var(--text-soft); font-size: 13.5px;
  font-family: inherit; cursor: pointer; transition: all .2s;
}
.faq-toggle-all:hover { border-color: var(--gold); color: var(--gold-deep); }
.faq-toggle-all:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

@media (min-width: 1025px) {
  .faq { max-width: 980px; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
  .faq details:first-child { grid-column: 1 / -1; }
}
.faq details { padding: 16px 22px; }
.faq .faq-a { padding-left: 2px; }

/* ============================================================
   v2.16 产品成品图上站
   硬件页三张矢量渲染图换 AI 成品图(雷达/门禁/高拍仪,
   hw-recorder 录音卡片暂保留矢量);供应链页品类一览新增
   产品展示三联(护理床/监控/床品,浅暖灰底成品图)。
   ============================================================ */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin: 46px 0 52px; }
.prod-tile { text-align: center; min-width: 0; }
.prod-fig {
  margin: 0 0 16px; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--line); background: #f5f4f0;
  box-shadow: var(--shadow-soft);
}
.prod-fig img { display: block; width: 100%; height: auto; transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.prod-tile:hover .prod-fig img { transform: scale(1.03); }
.prod-tile h3 { font-size: 17px; margin-bottom: 4px; }
.prod-tile p { font-size: 13.5px; color: var(--text-soft); }
@media (max-width: 860px) { .prod-grid { grid-template-columns: repeat(1, 1fr); gap: 30px; } .prod-tile .prod-fig { max-width: 420px; margin: 0 auto 14px; } }

/* v2.15.1 修复:FAQ 两列网格中,同行右卡被默认 stretch 拉伸到与左卡同高,
   看似"被迫展开"实则空卡——改为顶部对齐,各卡保持自然高度 */
.faq details { align-self: start; }

/* v2.16.1 修复:硬件页成品图被 height 属性拉成 480×1200(竖向拉伸2.5倍)——
   .hw-fig img 补 height:auto(旧 SVG 无高度属性故从未暴露) */
.hw-fig img { height: auto; }


/* ============================================================
   v2.18 供应链页八格品类墙
   7 产品格 + 1 虚线"品类持续扩充"暗示格(4 列 × 2 行),
   替代 v2.17 品类延伸行;白底资源图与 AI 渲染图混排。
   ============================================================ */
.prod-grid { grid-template-columns: repeat(4, 1fr); gap: 22px; margin: 46px 0 52px; }
.prod-fig-more {
  aspect-ratio: 1 / 1; display: grid; place-items: center;
  background: transparent; border: 1.5px dashed var(--line);
  box-shadow: none; color: var(--gold-deep);
}
.prod-fig-more .ic { width: 44px; height: 44px; opacity: .7; }
.prod-tile.prod-more h3 { color: var(--text-soft); font-weight: 600; }
@media (max-width: 1024px) { .prod-grid { grid-template-columns: repeat(2, 1fr); } }

/* ============================================================
   v2.26 供应链品类跑马灯(用户批准方案一)
   产品图格与真实品类条(无图)混排,双份内容无缝循环;
   悬停整条暂停;触屏降级为可拖拽横滑(reduced-motion 降级静态换行)。
   注:本条为 DESIGN.md"禁无限循环动画"的内容流豁免(非装饰)。
   ============================================================ */
.mq-zone {
  overflow: hidden; margin: 46px 0 52px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.mq-track { display: flex; width: max-content; animation: mq-scroll 55s linear infinite; }
.mq-zone:hover .mq-track, .mq-zone:focus-within .mq-track { animation-play-state: paused; }
.mq-set { display: flex; align-items: stretch; padding-right: 18px; }
.mq-tile { flex: none; width: 225px; margin-right: 18px; text-align: center; }
.mq-tile .prod-fig { margin-bottom: 12px; }
.mq-tile h3 { font-size: 16px; margin-bottom: 3px; }
.mq-tile p { font-size: 12.5px; color: var(--text-soft); }
.mq-chip {
  flex: none; width: 208px; margin-right: 18px; align-self: center;
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 16px; min-width: 0;
}
.mq-chip b { display: block; font-size: 15px; color: var(--ink); }
.mq-chip > span:last-child span { display: block; font-size: 12px; color: var(--text-soft); margin-top: 2px; }
@keyframes mq-scroll { to { transform: translateX(-50%); } }

/* 触屏:改为可拖拽横滑 */
@media (hover: none) {
  .mq-zone { overflow-x: auto; scroll-snap-type: x proximity; -webkit-mask-image: none; mask-image: none; }
  .mq-track { animation: none; }
  .mq-set[aria-hidden="true"] { display: none; }
  .mq-tile, .mq-chip { scroll-snap-align: start; }
}
/* 动效敏感:静态换行 */
@media (prefers-reduced-motion: reduce) {
  .mq-track { animation: none; flex-wrap: wrap; width: auto; }
  .mq-set { flex-wrap: wrap; padding-right: 0; }
  .mq-set[aria-hidden="true"] { display: none; }
  .mq-zone { -webkit-mask-image: none; mask-image: none; }
}

/* ============================================================
   v2.29 FAQ 两列独立吸附:左右列各自纵向堆叠(两条列容器),
   左列展开不再撑高右列——右列卡片始终与上下卡紧凑吸附。
   取代 v2.15 的成行网格两列(行高耦合)。
   ============================================================ */
@media (min-width: 1025px) {
  .faq { grid-template-columns: 1fr; gap: 12px; }
  .faq details:first-child { grid-column: auto; }
  .faq-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; align-items: start; }
}
.faq-cols { display: grid; gap: 12px; }
.faq-col { display: grid; gap: 12px; }

/* ============================================================
   v2.31 GEO 内容强化:TL;DR 本页要点块 + 来源标注
   (依据 05 号行动建议:TL;DR 摘要块为高抽取率结构;
   引用来源标注实测可见度 +115%)
   ============================================================ */
.src-note { font-size: 12.5px; color: var(--text-soft); margin-top: 12px; line-height: 1.6; }