/* ==========================================================================
   户对 HUDUI · 嵌入式全自动智能门控  品牌官网
   自研样式系统 · 无外链依赖（图标全部内联 SVG）
   ========================================================================== */

:root{
  /* 主色：科技蓝 */
  --brand:#1668e3;
  --brand-d:#0b47a8;
  --brand-l:#4b95ff;
  --cyan:#39cbff;
  /* 深色底 */
  --navy-900:#03142a;
  --navy-800:#061e3b;
  --navy-700:#0a2c53;
  --navy-600:#123c6b;
  /* 浅色底与文字 */
  --bg:#ffffff;
  --bg-soft:#f4f8fd;
  --bg-soft2:#eaf2fb;
  --ink:#0b1c30;
  --ink-2:#3f5570;
  --ink-3:#7a8da5;
  --line:#e2ecf7;
  --line-2:#d3e1f1;
  /* 尺寸 */
  --wrap:1200px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-1:0 2px 10px rgba(11,28,48,.05);
  --shadow-2:0 14px 38px -18px rgba(11,28,48,.28);
  --shadow-3:0 26px 60px -26px rgba(11,28,48,.4);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(22,104,227,.18)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:980px}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;font-weight:600;
  color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--brand),var(--cyan));border-radius:2px}
.h1{font-size:clamp(30px,4.4vw,54px);line-height:1.22;font-weight:800;letter-spacing:-.01em}
.h2{font-size:clamp(24px,2.9vw,36px);line-height:1.3;font-weight:800;letter-spacing:-.01em}
.h3{font-size:19px;line-height:1.5;font-weight:700}
.lead{font-size:17px;color:var(--ink-2);line-height:1.9}
.muted{color:var(--ink-3);font-size:14px}
.center{text-align:center}
.accent{color:var(--brand)}
.accent-grad{
  background:linear-gradient(100deg,var(--brand-l),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:linear-gradient(120deg,var(--brand) 0%,var(--brand-d) 100%);color:#fff;box-shadow:0 12px 26px -12px rgba(22,104,227,.75)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(22,104,227,.85)}
.btn-ghost{border:1px solid rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-line{border:1px solid var(--line-2);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header .bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:74px;
}
.site-header.solid{background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(11,28,48,.4)}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{width:38px;height:38px;flex:none}
.logo-txt{display:flex;flex-direction:column;line-height:1.1}
.logo-cn{font-size:19px;font-weight:800;letter-spacing:.16em;color:#fff;transition:color .3s}
.logo-en{font-size:10px;font-weight:600;letter-spacing:.34em;color:rgba(255,255,255,.66);transition:color .3s}
.site-header.solid .logo-cn{color:var(--ink)}
.site-header.solid .logo-en{color:var(--ink-3)}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:9px 16px;border-radius:999px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.86);
  transition:color .25s,background .25s;
}
.nav a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav a.active{color:#fff;font-weight:600}
.nav a.active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--cyan);
}
.site-header.solid .nav a{color:var(--ink-2)}
.site-header.solid .nav a:hover{color:var(--brand);background:var(--bg-soft)}
.site-header.solid .nav a.active{color:var(--brand)}
.site-header.solid .nav a.active::after{background:var(--brand)}

.head-cta{display:flex;align-items:center;gap:14px;flex:none}
.head-tel{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:#fff;letter-spacing:.02em;transition:color .3s}
.head-tel svg{width:17px;height:17px}
.site-header.solid .head-tel{color:var(--brand)}
.site-header.solid .btn-ghost{border-color:var(--line-2);color:var(--ink)}
.site-header.solid .btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-soft)}
.site-header:not(.solid) .btn-ghost{background:rgba(255,255,255,.08)}

.burger{display:none;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center}
.burger span{display:block;width:19px;height:2px;background:#fff;border-radius:2px;transition:.3s var(--ease)}
.burger span+span{margin-top:5px}
.site-header.solid .burger span{background:var(--ink)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 620px at 78% 6%,rgba(22,104,227,.42),transparent 62%),
    radial-gradient(760px 520px at 8% 96%,rgba(57,203,255,.2),transparent 66%),
    linear-gradient(158deg,var(--navy-900) 0%,var(--navy-800) 42%,var(--navy-700) 100%);
  color:#fff;
  padding:150px 0 0;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:66px 66px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
  width:980px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(75,149,255,.28),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:56px;align-items:center;
  padding-bottom:96px;
}
.hero-copy .eyebrow{color:var(--cyan)}
.hero-copy .eyebrow::before{background:linear-gradient(90deg,var(--cyan),rgba(57,203,255,.15))}
.hero h1{margin:20px 0 0}
.hero h1 .line{display:block}
.hero-sub{
  margin-top:22px;max-width:520px;
  font-size:17px;line-height:1.95;color:rgba(226,238,251,.82);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  font-size:13px;font-weight:500;letter-spacing:.02em;
  color:rgba(226,238,251,.9);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.07);
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* Hero 产品视觉 */
.hero-visual{position:relative}
.hero-visual .shot{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 40px 90px -34px rgba(0,0,0,.72),0 0 0 1px rgba(57,203,255,.12) inset;
  animation:floatY 7s ease-in-out infinite;
}
.hero-visual .shot img{width:100%;height:auto}
.hero-visual .glow{
  position:absolute;inset:auto -8% -14% -8%;height:52%;z-index:-1;
  background:radial-gradient(closest-side,rgba(57,203,255,.42),transparent 72%);
  filter:blur(24px);
}
.hero-badge{
  position:absolute;left:-22px;bottom:38px;z-index:3;
  display:flex;align-items:center;gap:12px;
  padding:13px 18px;border-radius:16px;
  background:rgba(6,30,59,.82);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(10px);
  box-shadow:0 20px 46px -20px rgba(0,0,0,.7);
}
.hero-badge .num{font-size:22px;font-weight:800;color:var(--cyan);line-height:1}
.hero-badge .txt{font-size:13px;color:rgba(226,238,251,.8);line-height:1.5}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}

/* Hero 数据条 */
.hero-stats{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.12);
  background:rgba(3,20,42,.5);
  backdrop-filter:blur(8px);
}
.hero-stats ul{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.hero-stats li{
  padding:26px 20px;text-align:center;position:relative;
}
.hero-stats li+li::before{
  content:"";position:absolute;left:0;top:26%;height:48%;width:1px;background:rgba(255,255,255,.13);
}
.hero-stats .v{font-size:26px;font-weight:800;letter-spacing:-.01em;color:#fff}
.hero-stats .v small{font-size:14px;font-weight:600;margin-left:3px;color:var(--cyan)}
.hero-stats .k{font-size:13px;color:rgba(226,238,251,.66);margin-top:3px}

/* 内页 Hero（矮版） */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:140px 0 66px;
  background:
    radial-gradient(900px 460px at 82% 0%,rgba(22,104,227,.4),transparent 64%),
    linear-gradient(152deg,var(--navy-900) 0%,var(--navy-700) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:62px 62px;
  mask-image:radial-gradient(circle at 60% 20%,#000,transparent 76%);
  -webkit-mask-image:radial-gradient(circle at 60% 20%,#000,transparent 76%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.26;margin:18px 0 0}
.page-hero p{margin-top:16px;max-width:660px;color:rgba(226,238,251,.8);font-size:16.5px;line-height:1.9}
.crumb{display:flex;gap:9px;align-items:center;font-size:13px;color:rgba(226,238,251,.6)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{opacity:.5}

/* ---------- 章节 ---------- */
.section{padding:92px 0}
.section.soft{background:var(--bg-soft)}
.section.tight{padding:70px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head .h2{margin-top:16px}
.sec-head .lead{margin-top:16px}
.sec-head.center .lead{margin-left:auto;margin-right:auto}

/* ---------- 卡片：核心亮点 ---------- */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}

.feature{
  position:relative;overflow:hidden;
  padding:30px 28px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .34s var(--ease),box-shadow .34s var(--ease),border-color .34s var(--ease);
}
.feature:hover{transform:translateY(-6px);box-shadow:var(--shadow-3);border-color:var(--line-2)}
.feature::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--cyan));
  transition:width .42s var(--ease);
}
.feature:hover::after{width:100%}
.ico{
  width:52px;height:52px;border-radius:15px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#e9f2ff,#dcecff);
  color:var(--brand);margin-bottom:19px;
}
.ico svg{width:26px;height:26px}
.feature .h3{margin-bottom:9px}
.feature p{color:var(--ink-2);font-size:15px;line-height:1.85}
.feature .idx{
  position:absolute;right:22px;top:20px;
  font-size:34px;font-weight:800;color:#dae8f8;line-height:1;letter-spacing:-.03em;
}

/* ---------- 产品卡 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.prod{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .34s var(--ease),box-shadow .34s var(--ease),border-color .34s var(--ease);
}
.prod:hover{transform:translateY(-7px);box-shadow:var(--shadow-3);border-color:var(--line-2)}
.prod-thumb{
  position:relative;background:linear-gradient(160deg,#f7fbff,#e9f2fd);
  aspect-ratio:3/4.1;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  padding:12px;
}
.prod-thumb img{width:100%;height:100%;object-fit:contain;object-position:center;transition:transform .5s var(--ease)}
.prod:hover .prod-thumb img{transform:scale(1.045)}
.prod-thumb[data-zoom]{cursor:zoom-in}
.prod-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;
  background:rgba(6,30,59,.86);color:#fff;border:1px solid rgba(255,255,255,.22);
}
.prod-tag.hot{background:linear-gradient(120deg,var(--brand),var(--brand-d));border-color:transparent}
.prod-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.prod-model{
  display:flex;align-items:baseline;gap:10px;margin-bottom:6px;
}
.prod-model .m{font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--brand)}
.prod-model .n{font-size:15px;font-weight:700;color:var(--ink)}
.prod-body>p{color:var(--ink-2);font-size:14.5px;line-height:1.8}
.prod-specs{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line-2);
  display:grid;gap:7px;
}
.prod-specs li{
  display:flex;gap:10px;font-size:13.5px;color:var(--ink-2);line-height:1.65;
}
.prod-specs li b{color:var(--ink-3);font-weight:500;flex:none;min-width:66px}
.prod-specs li span{color:var(--ink);font-weight:600}

/* 产品筛选 */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.filters button{
  padding:10px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-2);border:1px solid var(--line-2);background:#fff;
  transition:.28s var(--ease);
}
.filters button:hover{border-color:var(--brand);color:var(--brand)}
.filters button.on{background:linear-gradient(120deg,var(--brand),var(--brand-d));color:#fff;border-color:transparent;box-shadow:0 10px 22px -12px rgba(22,104,227,.8)}

/* ---------- 大图展示（参数海报） ---------- */
.sheet{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:44px;align-items:center;
  padding:38px;border-radius:24px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.sheet.rev .sheet-media{order:2}
.sheet-media{
  border-radius:16px;overflow:hidden;background:var(--bg-soft);
  border:1px solid var(--line);
  cursor:zoom-in;
}
.sheet-media img{width:100%}
.sheet-body .h3{font-size:23px;margin-bottom:12px}
.sheet-body p{color:var(--ink-2);font-size:15.5px;line-height:1.9}
.tick{margin-top:20px;display:grid;gap:11px}
.tick li{display:flex;gap:11px;font-size:15px;color:var(--ink-2);line-height:1.7}
.tick svg{width:19px;height:19px;flex:none;margin-top:5px;color:var(--brand)}

/* ---------- 参数表 ---------- */
.spectable{
  width:100%;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.spectable caption{
  caption-side:top;text-align:left;
  padding:20px 24px;font-size:15px;font-weight:700;color:var(--ink);
  background:linear-gradient(120deg,#f2f8ff,#e8f2fd);
  border-bottom:1px solid var(--line);
}
.spectable th,.spectable td{
  padding:14px 22px;font-size:14.5px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);
}
.spectable th{
  width:190px;font-weight:600;color:var(--ink-2);background:var(--bg-soft);
  white-space:nowrap;
}
.spectable td{color:var(--ink);font-weight:600}
.spectable tr:last-child th,.spectable tr:last-child td{border-bottom:0}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:s}
.step{position:relative;padding-top:30px}
.step::before{
  content:"";position:absolute;left:0;right:-26px;top:15px;height:1px;
  background:linear-gradient(90deg,var(--line-2),transparent);
}
.step:last-child::before{display:none}
.step .dot{
  position:absolute;left:0;top:0;width:31px;height:31px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;
  background:linear-gradient(140deg,var(--brand),var(--brand-d));
  box-shadow:0 8px 18px -8px rgba(22,104,227,.9);
}
.step .h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- 关于我们 · 品牌块 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:52px;align-items:center;
}
.split.rev .split-media{order:2}
.split-media{border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);background:var(--bg-soft)}
.split-body .h2{margin:16px 0 20px}
.split-body p+p{margin-top:16px}
.quote{
  margin-top:26px;padding:22px 24px;border-radius:16px;
  background:linear-gradient(120deg,#f2f8ff,#e9f3ff);
  border-left:4px solid var(--brand);
}
.quote p{font-size:16.5px;font-weight:700;color:var(--brand-d);line-height:1.75;font-style:normal}

/* 品牌数据 */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.kpi{
  padding:26px 22px;border-radius:var(--r-lg);text-align:center;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .34s var(--ease),box-shadow .34s var(--ease);
}
.kpi:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.kpi .v{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1;color:var(--brand)}
.kpi .v small{font-size:15px;font-weight:700;margin-left:2px}
.kpi .k{margin-top:9px;font-size:14px;color:var(--ink-2)}

/* 荣誉 */
.honors{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.honor{
  display:flex;gap:14px;align-items:flex-start;
  padding:22px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.honor svg{width:24px;height:24px;flex:none;color:var(--brand);margin-top:3px}
.honor b{display:block;font-size:15.5px;margin-bottom:4px}
.honor span{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ---------- CTA 带 ---------- */
.cta{
  position:relative;overflow:hidden;color:#fff;text-align:center;
  padding:78px 0;
  background:
    radial-gradient(760px 400px at 20% 0%,rgba(57,203,255,.24),transparent 62%),
    radial-gradient(760px 420px at 84% 100%,rgba(22,104,227,.44),transparent 64%),
    linear-gradient(140deg,var(--navy-900),var(--navy-700));
}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(circle at 50% 50%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 78%);
}
.cta .wrap{position:relative;z-index:2}
.cta h2{font-size:clamp(24px,3vw,38px);font-weight:800;line-height:1.32}
.cta p{margin:16px auto 0;max-width:620px;color:rgba(226,238,251,.8);font-size:16.5px;line-height:1.9}
.cta .hero-actions{justify-content:center;margin-top:32px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.ccard{
  display:flex;gap:18px;align-items:flex-start;
  padding:28px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .34s var(--ease),box-shadow .34s var(--ease);
}
.ccard:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.ccard .ico{margin-bottom:0;flex:none}
.ccard .k{font-size:13.5px;color:var(--ink-3);letter-spacing:.06em;margin-bottom:7px}
.ccard .v{font-size:20px;font-weight:800;letter-spacing:.01em;word-break:break-all}
.ccard .s{margin-top:7px;font-size:13.5px;color:var(--ink-3);line-height:1.7}
.ccard .v.link:hover{color:var(--brand)}
.qrbox{
  margin-top:22px;padding:28px;border-radius:var(--r-lg);
  background:linear-gradient(140deg,#f2f8ff,#e8f2fd);border:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;
}
.qrbox .ph{
  width:140px;height:140px;border-radius:14px;flex:none;
  border:1px dashed var(--line-2);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--ink-3);font-size:12.5px;text-align:center;
}
.qrbox .ph svg{width:30px;height:30px;opacity:.5}
.qrbox .tx h3{margin-bottom:8px}
.qrbox .tx p{color:var(--ink-2);font-size:14.5px;line-height:1.8}

/* 地图占位 */
.mapbox{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(140deg,#eaf2fb,#dceaf9);
  min-height:290px;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:34px;box-shadow:var(--shadow-1);
}
.mapbox .in svg{width:38px;height:38px;color:var(--brand);margin:0 auto 14px}
.mapbox .in b{display:block;font-size:17px;margin-bottom:8px}
.mapbox .in p{color:var(--ink-2);font-size:14.5px;line-height:1.8}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-900);color:rgba(226,238,251,.72);padding:66px 0 0;font-size:14.5px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:46px}
.foot-brand .logo{margin-bottom:18px}
.foot-brand .logo-cn{color:#fff}
.foot-brand .logo-en{color:rgba(255,255,255,.55)}
.foot-brand p{line-height:1.9;color:rgba(226,238,251,.62);font-size:14px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.foot-col li+li{margin-top:11px}
.foot-col a{font-size:14px;color:rgba(226,238,251,.66);transition:color .25s}
.foot-col a:hover{color:var(--cyan)}
.foot-col .sv{color:#fff;font-weight:700;font-size:15px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(226,238,251,.5);
}
.foot-bottom .lnks{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom a:hover{color:var(--cyan)}

/* ---------- 灯箱 ---------- */
.lightbox{
  position:fixed;inset:0;z-index:200;display:none;
  background:rgba(3,14,28,.94);backdrop-filter:blur(6px);
  align-items:center;justify-content:center;padding:28px;
}
.lightbox.on{display:flex}
.lightbox img{max-width:min(940px,92vw);max-height:88vh;width:auto;height:auto;border-radius:12px;box-shadow:var(--shadow-3)}
.lightbox .x{
  position:absolute;right:26px;top:22px;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.lightbox .x:hover{background:rgba(255,255,255,.14)}

/* 返回顶部 */
.totop{
  position:fixed;right:24px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(140deg,var(--brand),var(--brand-d));color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -12px rgba(22,104,227,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:.32s var(--ease);
}
.totop.on{opacity:1;visibility:visible;transform:none}
.totop svg{width:18px;height:18px}

/* 移动菜单 */
.mobile-nav{
  position:fixed;inset:74px 0 auto 0;z-index:55;
  background:rgba(255,255,255,.98);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:0 20px 40px -24px rgba(11,28,48,.4);
  padding:14px 24px 22px;
  display:none;
}
.mobile-nav.on{display:block}
.mobile-nav a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);color:var(--ink);
}
.mobile-nav a:last-of-type{border-bottom:0}
.mobile-nav a.active{color:var(--brand)}
.mobile-nav .btn{width:100%;margin-top:12px}

/* ---------- 章节锚点跳转（避开固定顶栏） ---------- */
section[id]{scroll-margin-top:104px}

/* ---------- 快捷跳转（锚点版 .filters） ---------- */
.filters a{
  display:inline-flex;align-items:center;
  padding:10px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--ink-2);border:1px solid var(--line-2);background:#fff;
  transition:.28s var(--ease);
}
.filters a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-1)}

/* ---------- 缺口标记（待补内容） ---------- */
.todo{
  display:inline-block;padding:2px 10px;border-radius:6px;
  font-size:13px;font-weight:700;letter-spacing:.02em;
  color:#8a5a00;background:#fff3cd;border:1px solid #f2d27a;
}

/* ---------- 滚动进场（仅在 JS 可用时隐藏，禁用脚本时内容照常显示） ---------- */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .rv.d1{transition-delay:.08s}
.js .rv.d2{transition-delay:.16s}
.js .rv.d3{transition-delay:.24s}
.js .rv.d4{transition-delay:.32s}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:44px;padding-bottom:70px}
  .hero-visual{max-width:520px}
  .hero-badge{left:auto;right:14px;bottom:14px}
  .prod-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g-4,.kpis,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step::before{display:none}
  .sheet{grid-template-columns:1fr;gap:28px}
  .sheet.rev .sheet-media{order:0}
  .split{grid-template-columns:1fr;gap:34px}
  .split.rev .split-media{order:0}
  .honors{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .nav,.head-tel{display:none}
  .burger{display:flex}
  .hero{padding-top:126px}
  .hero-stats ul{grid-template-columns:repeat(2,1fr)}
  .hero-stats li:nth-child(3)::before{display:none}
  .section{padding:66px 0}
  .g-3{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:620px){
  .wrap{padding:0 18px}
  .prod-grid{grid-template-columns:1fr}
  .g-4,.kpis,.steps,.g-2{grid-template-columns:1fr}
  .spectable th{width:130px;padding:12px 14px;font-size:13.5px;white-space:normal}
  .spectable td{padding:12px 14px;font-size:13.5px}
  .spectable caption{padding:16px 18px;font-size:14px}
  .feature,.ccard,.sheet{padding:22px}
  .foot-top{grid-template-columns:1fr;gap:28px}
  .hero-stats li{padding:20px 12px}
  .hero-stats .v{font-size:22px}
  .cta{padding:58px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}