/* ===================== 基础与变量 ===================== */
:root{
  --navy:#1f3a5c;        /* 主色·藏青蓝 */
  --navy-700:#17304d;
  --navy-900:#0e2439;    /* 深色区 */
  --accent:#c2562f;      /* 强调·赤陶橙 */
  --accent-700:#a8481f;
  --accent-soft:#fbeee7;
  --ink:#1a2333;
  --ink-2:#28344a;
  --slate:#4a5768;
  --muted:#71809a;
  --line:#e6e9ef;
  --bg:#ffffff;
  --bg-soft:#f7f8fb;
  --bg-alt:#f1f3f7;
  --radius:16px;
  --shadow-sm:0 1px 3px rgba(20,32,52,.06),0 1px 2px rgba(20,32,52,.04);
  --shadow:0 14px 34px -16px rgba(20,32,52,.28);
  --shadow-lg:0 34px 60px -28px rgba(20,32,52,.4);
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{color:var(--accent)}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  padding:10px 20px;border-radius:8px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.2s ease;white-space:nowrap;
}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-700);transform:translateY(-2px);box-shadow:0 10px 22px -10px rgba(31,58,92,.6)}
.btn-ghost{color:var(--ink-2)}
.btn-ghost:hover{color:var(--navy)}
.btn-outline{border-color:var(--line);color:var(--ink-2);background:#fff}
.btn-outline:hover{border-color:var(--navy);color:var(--navy);transform:translateY(-2px)}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;transition:.25s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm);background:rgba(255,255,255,.92)}
.header-inner{display:flex;align-items:center;gap:32px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand-mark{display:inline-flex}
.brand-text{font-size:20px;letter-spacing:.04em;display:flex;flex-direction:column;line-height:1;color:var(--navy)}
.brand-text em{font-style:normal;font-size:9px;font-weight:600;color:var(--muted);letter-spacing:.18em;margin-top:3px}
.main-nav{display:flex;gap:28px;margin-left:8px}
.main-nav a{font-size:15px;color:var(--slate);font-weight:500;position:relative;padding:4px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:.25s}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}

/* ===================== Hero ===================== */
.hero{position:relative;overflow:hidden;padding:78px 0 90px;background:var(--bg-soft)}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(50% 50% at 88% 6%,rgba(194,86,47,.06),transparent 60%),
    linear-gradient(180deg,#f7f8fb,#ffffff);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;
  mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 75%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.pill{
  display:inline-block;padding:6px 14px;border-radius:6px;font-size:13px;font-weight:600;
  color:var(--accent-700);background:var(--accent-soft);border:1px solid rgba(194,86,47,.2);margin-bottom:22px;
}
.hero h1{font-size:clamp(34px,4.4vw,56px);font-weight:800;letter-spacing:-.02em;color:var(--navy)}
.hero-sub{margin:22px 0 30px;font-size:18px;color:var(--slate);max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{list-style:none;display:flex;gap:34px;padding:0;margin:38px 0 0;flex-wrap:wrap}
.hero-trust li{font-size:14px;color:var(--muted)}
.hero-trust strong{display:block;font-size:26px;color:var(--navy);font-weight:800}

/* Hero 仪表盘 */
.hero-visual{position:relative}
.dash{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-lg);transform:perspective(1400px) rotateY(-9deg) rotateX(3deg);
  transition:.5s ease;
}
.hero-visual:hover .dash{transform:perspective(1400px) rotateY(-4deg) rotateX(1deg)}
.dash-top{display:flex;align-items:center;gap:7px;padding:12px 16px;background:var(--bg-soft);border-bottom:1px solid var(--line)}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.dash-title{margin-left:8px;font-size:13px;color:var(--muted);font-weight:600}
.dash-body{padding:18px}
.dash-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.kpi{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:12px}
.kpi-label{font-size:11px;color:var(--muted);display:block}
.kpi-num{font-size:22px;font-weight:800;display:block;margin:2px 0;color:var(--navy)}
.kpi-up{font-size:11px;color:#15803d;font-weight:600}
.dash-chart{height:96px;margin-bottom:14px}
.dash-chart svg{width:100%;height:100%}
.dash-rows{display:flex;flex-direction:column;gap:10px}
.row{display:flex;align-items:center;gap:10px;font-size:12px}
.tag{padding:2px 8px;border-radius:5px;font-weight:700;font-size:11px}
.tag-blue{background:rgba(31,58,92,.1);color:var(--navy)}
.tag-purple{background:rgba(44,110,106,.12);color:#2c6e6a}
.tag-green{background:rgba(194,86,47,.12);color:var(--accent)}
.row-name{color:var(--slate);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar{width:84px;height:6px;background:var(--bg-alt);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--navy);border-radius:99px}
.row-pct{width:34px;text-align:right;font-weight:700;color:var(--ink-2)}

.float-card{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);padding:11px 14px;display:flex;align-items:center;gap:10px;
  animation:floaty 4.5s ease-in-out infinite;
}
.float-card b{font-size:13px;display:block;color:var(--ink)}
.float-card small{font-size:11px;color:var(--muted)}
.fc-ic{font-size:20px}
.fc1{top:-18px;left:-26px;animation-delay:.2s}
.fc2{bottom:26px;right:-30px;animation-delay:1.4s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ===================== 信任跑马灯 ===================== */
.marquee-wrap{padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.marquee-hint{text-align:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:52px;width:max-content;animation:scroll 22s linear infinite}
.marquee-track span{font-size:20px;font-weight:800;color:#c3cad6;white-space:nowrap}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ===================== 通用 section ===================== */
.section{padding:88px 0}
.section-alt{background:var(--bg-soft)}
.section-head{max-width:680px;margin:0 auto 52px;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--accent);text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;color:var(--navy)}
.section-head p{margin-top:16px;color:var(--slate);font-size:17px}
.section-head.light h2{color:#fff}
.section-head.light .eyebrow{color:#e6a184}

/* 产品卡片 */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  transition:.25s ease;position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--accent);transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#d7dce4}
.card:hover::before{width:100%}
.card-ic{font-size:28px;width:58px;height:58px;display:grid;place-items:center;border-radius:12px;background:rgba(31,58,92,.07);margin-bottom:18px}
.card h3{font-size:20px;margin-bottom:8px;color:var(--ink)}
.card p{color:var(--slate);font-size:15px}

/* 特性行 */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:34px}
.feature-row+.feature-row{margin-top:72px}
.feature-row.reverse .feature-text{order:2}
.feat-num{font-size:14px;font-weight:800;color:var(--accent);letter-spacing:.1em}
.feature-text h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin:10px 0 14px;color:var(--navy)}
.feature-text p{color:var(--slate);font-size:16px}
.feat-list{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:12px}
.feat-list li{position:relative;padding-left:30px;color:var(--ink-2);font-size:15px;font-weight:500}
.feat-list li::before{content:"✓";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:5px;background:var(--accent-soft);color:var(--accent);font-size:12px;display:grid;place-items:center;font-weight:800}

/* 特性可视化 */
.feature-visual{display:flex;justify-content:center}
.mini{width:100%;max-width:420px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:26px}
.mini-msg{background:var(--bg-alt);border-radius:12px 12px 12px 2px;padding:14px 16px;font-size:14px;color:var(--ink-2)}
.mini-arrow{text-align:center;color:var(--accent);font-weight:700;font-size:13px;margin:16px 0}
.mini-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mini-fields span{background:var(--bg-soft);border:1px solid var(--line);border-left:3px solid var(--navy);border-radius:8px;padding:12px 14px;font-weight:700;color:var(--ink)}
.mini-fields i{display:block;font-style:normal;font-size:11px;color:var(--muted);font-weight:600;margin-bottom:2px}

.mini-scan{display:grid;place-items:center;background:var(--bg-soft)}
.scan-phone{width:220px;background:#fff;border-radius:20px;padding:16px;box-shadow:var(--shadow);border:1px solid var(--line)}
.scan-view{position:relative;height:150px;border-radius:12px;background:var(--navy-900);overflow:hidden;display:grid;place-items:center}
.scan-code{width:96px;height:96px;border-radius:8px;background:
  repeating-linear-gradient(90deg,#fff 0 6px,var(--navy-900) 6px 12px),
  repeating-linear-gradient(0deg,#fff 0 6px,transparent 6px 12px);
  background-blend-mode:multiply;opacity:.92}
.scan-line{position:absolute;left:8%;right:8%;height:2px;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:scanmove 2.2s ease-in-out infinite}
@keyframes scanmove{0%,100%{top:18%}50%{top:78%}}
.scan-info{text-align:center;margin:14px 0 12px}
.scan-info b{font-size:18px;color:var(--ink)}.scan-info small{display:block;color:var(--muted);font-size:12px}
.scan-btn{width:100%;border:0;border-radius:8px;padding:11px;background:var(--navy);color:#fff;font-weight:700;font-size:14px;cursor:pointer}

.mini-flow{display:flex;flex-direction:column;align-items:center;gap:0;background:var(--bg-soft)}
.flow-node{width:170px;text-align:center;padding:14px;border-radius:10px;font-weight:800;color:#fff;box-shadow:var(--shadow-sm)}
.flow-node.n1{background:var(--navy)}
.flow-node.n2{background:#2c6e6a}
.flow-node.n3{background:var(--accent)}
.flow-line{width:2px;height:26px;background:#c7cdd8;margin:6px 0}
.flow-tags{display:flex;gap:8px;margin-top:20px;flex-wrap:wrap;justify-content:center}
.flow-tags span{font-size:12px;font-weight:700;color:var(--slate);background:#fff;border:1px solid var(--line);border-radius:6px;padding:5px 12px}

/* 行业方案 */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.sol-top{display:flex;align-items:center;gap:12px;padding:26px 26px 22px;color:#fff}
.sol-print{background:var(--navy)}
.sol-dye{background:#2c6e6a}
.sol-trade{background:var(--accent)}
.sol-ic{font-size:28px}
.sol-top h3{font-size:22px}
.sol-body{padding:22px 26px 28px}
.sol-body>p{color:var(--slate);font-size:14px;margin-bottom:16px}
.sol-body ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.sol-body li{position:relative;padding-left:22px;font-size:14px;color:var(--ink-2)}
.sol-body li::before{content:"›";position:absolute;left:6px;top:-1px;color:var(--accent);font-weight:800;font-size:18px}

/* 数据（深色） */
.section-dark{background:var(--navy-900);color:#fff}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{text-align:center;padding:10px}
.stat-num{font-size:clamp(40px,5vw,60px);font-weight:800;color:#fff}
.stat-unit{font-size:26px;font-weight:800;color:#e6a184}
.stat p{margin-top:10px;color:#a9b4c6;font-size:14px;max-width:220px;margin-inline:auto}

/* CTA */
.cta{padding:20px 0 90px}
.cta-inner{
  background:var(--navy);
  border-radius:22px;padding:56px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-inner::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(194,86,47,.14)}
.cta-copy{position:relative}
.cta-copy h2{color:#fff;font-size:clamp(26px,3vw,36px);font-weight:800}
.cta-copy p{color:#c4cddb;margin-top:14px;font-size:17px}
.cta-form{display:flex;flex-direction:column;gap:14px;position:relative}
.cta-form input{padding:14px 18px;border-radius:8px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.1);color:#fff;font-size:15px;outline:none}
.cta-form input::placeholder{color:rgba(255,255,255,.65)}
.cta-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.16)}
.cta-form .btn-primary{background:var(--accent);color:#fff}
.cta-form .btn-primary:hover{background:var(--accent-700)}
.cta-note{font-size:12px;color:rgba(255,255,255,.65)}

/* 页脚 */
.site-footer{background:var(--navy-900);color:#b8c1d1;padding:60px 0 26px}
.footer-inner{display:grid;grid-template-columns:1.4fr 2fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;color:#8894a8;max-width:320px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:#8894a8;padding:5px 0;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:22px;font-size:13px;color:#67728a}
.footer-bottom a{color:inherit;transition:.2s}
.footer-bottom a:hover{color:#fff}
.footer-links{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}

/* ===================== 子页面：通用 ===================== */
.main-nav a.active{color:var(--navy);font-weight:700}
.main-nav a.active::after{width:100%}
.btn-block{width:100%}
.section-sm{padding:60px 0}
.container.narrow{max-width:780px}

.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:48px 0 44px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb b{color:var(--ink-2);font-weight:600}
.page-hero h1{font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--navy)}
.page-hero>.container>p{margin-top:16px;color:var(--slate);font-size:17px;max-width:720px}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.meta-row span{font-size:12px;font-weight:600;color:var(--slate);background:#fff;border:1px solid var(--line);border-radius:6px;padding:5px 12px}

.block-title{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:var(--navy);margin-bottom:10px}
.block-sub{color:var(--slate);font-size:15px;margin-bottom:26px}

/* 联系卡片 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}
.contact-card{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;transition:.2s;
}
a.contact-card:hover{border-color:var(--navy);transform:translateY(-3px);box-shadow:var(--shadow)}
.contact-ic{font-size:24px;flex:none;width:46px;height:46px;display:grid;place-items:center;border-radius:10px;background:rgba(31,58,92,.07)}
.contact-card b{display:block;font-size:15px;color:var(--ink)}
.contact-val{display:block;font-size:17px;font-weight:800;color:var(--navy);margin:3px 0 5px;word-break:break-all}
.contact-card small{display:block;font-size:12px;color:var(--muted);line-height:1.55}

/* SLA */
.sla{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px;background:var(--navy);border-radius:var(--radius);padding:26px}
.sla-item{text-align:center;color:#fff}
.sla-item b{display:block;font-size:22px;font-weight:800}
.sla-item span{font-size:12px;color:#b9c4d4}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 46px 18px 20px;font-weight:700;font-size:15px;
  color:var(--ink);position:relative;transition:.2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);transition:.25s;
}
.faq-item[open] summary{color:var(--accent)}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--accent)}
.faq-item summary:hover{background:var(--bg-soft)}
.faq-body{padding:0 20px 20px;color:var(--slate);font-size:14px;line-height:1.75;border-top:1px solid var(--line);padding-top:16px}
.faq-body a{color:var(--accent);font-weight:600;text-decoration:underline}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:16px}
.form-card label{display:flex;flex-direction:column;gap:7px;font-size:14px;font-weight:600;color:var(--ink-2)}
.form-card input,.form-card select,.form-card textarea{
  font:inherit;font-weight:400;padding:12px 14px;border:1px solid var(--line);border-radius:8px;
  background:var(--bg-soft);color:var(--ink);outline:none;transition:.2s;width:100%;
}
.form-card textarea{resize:vertical;min-height:110px}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{border-color:var(--navy);background:#fff}
.form-note{font-size:12px;color:var(--muted);text-align:center}

/* ===================== 文档页（隐私政策） ===================== */
.doc-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:44px;align-items:start}
.doc-toc{position:sticky;top:88px}
.toc-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.toc-box summary{cursor:pointer;font-weight:800;color:var(--navy);font-size:14px;list-style:none}
.toc-box summary::-webkit-details-marker{display:none}
.toc-box nav{display:flex;flex-direction:column;margin-top:12px}
.toc-box nav a{font-size:13px;color:var(--slate);padding:7px 0;border-left:2px solid transparent;padding-left:10px;transition:.2s}
.toc-box nav a:hover{color:var(--accent);border-left-color:var(--accent)}

.doc{max-width:760px;min-width:0;font-size:15px;color:var(--slate);line-height:1.85;overflow-wrap:break-word}
.doc-callout{background:var(--accent-soft);border-left:3px solid var(--accent);border-radius:8px;padding:18px 20px;color:var(--ink-2);font-size:14.5px;margin-bottom:34px}
.doc-callout b{color:var(--accent-700)}
.doc h2{font-size:20px;font-weight:800;color:var(--navy);margin:38px 0 14px;scroll-margin-top:90px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.doc h2:first-of-type{margin-top:0}
.doc h3{font-size:16px;font-weight:700;color:var(--ink);margin:22px 0 8px}
.doc p{margin:10px 0}
.doc ul{margin:10px 0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:9px}
.doc ul li{position:relative;padding-left:18px}
.doc ul li::before{content:"";position:absolute;left:2px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.doc b{color:var(--ink)}
.doc a{color:var(--accent);font-weight:600;text-decoration:underline}
.doc-tail{margin-top:22px;font-size:13px;color:var(--muted)}

.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:16px 0;border:1px solid var(--line);border-radius:10px}
.doc-table{width:100%;border-collapse:collapse;font-size:14px;min-width:460px}
.doc-table th{background:var(--bg-soft);color:var(--ink);font-weight:700;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.doc-table td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--slate)}
.doc-table tr:last-child td{border-bottom:0}

.contact-inline{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px}
.contact-inline div{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.contact-inline b{display:block;font-size:12px;color:var(--muted);font-weight:600}
.contact-inline span{display:block;font-size:15px;font-weight:700;color:var(--ink);margin-top:3px;word-break:break-all}

/* ===================== 动效 ===================== */
.reveal{opacity:0;transform:translateY(28px);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}
  .marquee-track,.scan-line,.float-card{animation:none}
}

/* ===================== 响应式：平板 ===================== */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:60px}
  .hero-visual{max-width:520px;margin:0 auto}
  .dash{transform:none}
  .cards-grid,.solution-grid{grid-template-columns:1fr 1fr}
  .feature-row{grid-template-columns:1fr;gap:32px}
  .feature-row.reverse .feature-text{order:0}
  .stat-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;padding:40px}
  .footer-inner{grid-template-columns:1fr}
  /* 文档页目录移到顶部，默认收起 */
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .doc-toc{position:static}
  .toc-box nav{display:grid;grid-template-columns:1fr 1fr}
  .doc{max-width:none}
}

/* ===================== 响应式：手机 ===================== */
@media (max-width:720px){
  /* 导航：汉堡菜单 */
  .main-nav,.header-actions .btn{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:12px;height:60px}
  .main-nav.open{
    display:flex;position:absolute;top:60px;left:0;right:0;flex-direction:column;
    background:#fff;padding:8px 20px 16px;gap:0;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
  }
  .main-nav.open a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .main-nav.open a:last-child{border-bottom:0}
  .main-nav.open a::after{display:none}
  .nav-toggle.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.on span:nth-child(2){opacity:0}
  .nav-toggle.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .brand-text{font-size:18px}

  /* 首页 */
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .hero{padding:40px 0 56px}
  .hero-inner{gap:44px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1;min-width:140px}
  .hero-trust{gap:0;justify-content:space-between;width:100%}
  .hero-trust li{flex:1;text-align:center;font-size:12px}
  .hero-trust strong{font-size:22px}
  .cards-grid,.solution-grid{grid-template-columns:1fr}
  .float-card{display:none}
  .dash-kpis{gap:8px}
  .kpi{padding:9px}
  .kpi-num{font-size:17px}
  .kpi-label{font-size:10px}
  .feature-row{gap:26px}
  .feature-row+.feature-row{margin-top:52px}
  .stat-grid{gap:28px}
  .section-head{margin-bottom:36px}
  .section-head p{font-size:15px}
  .cta{padding:0 0 60px}
  .cta-inner{padding:32px 22px;border-radius:16px}
  .cta-copy p{font-size:15px}
  .marquee-track span{font-size:16px}

  /* 子页面 */
  .page-hero{padding:32px 0 30px}
  .page-hero>.container>p{font-size:15px}
  .contact-grid{grid-template-columns:1fr;gap:12px}
  .contact-card{padding:16px}
  .sla{grid-template-columns:1fr 1fr;gap:20px 12px;padding:22px 16px}
  .sla-item b{font-size:18px}
  .faq-item summary{padding:15px 42px 15px 16px;font-size:14.5px}
  .faq-body{padding:14px 16px 16px}
  .form-card{padding:18px}
  .toc-box nav{grid-template-columns:1fr}
  .toc-box nav a{padding:10px 0 10px 10px;font-size:14px}
  .doc{font-size:15px}
  .doc h2{font-size:18px;margin-top:30px}
  .contact-inline{grid-template-columns:1fr}

  /* 页脚 */
  .site-footer{padding:44px 0 22px}
  .footer-inner{gap:32px;padding-bottom:28px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:20px}
  .footer-bottom{flex-direction:column;gap:6px;text-align:center}
}

/* 超小屏 */
@media (max-width:380px){
  .container{padding:0 16px}
  .hero h1{font-size:29px}
  .hero-cta .btn{width:100%;flex:none}
  .footer-cols{grid-template-columns:1fr}
}

/* 移动端点击体验 */
@media (hover:none){
  .card:hover,.sol-card:hover,a.contact-card:hover,.btn:hover{transform:none;box-shadow:none}
  .btn-primary:active{background:var(--navy-700)}
  .card:active,.sol-card:active{background:var(--bg-soft)}
  a,button,summary{-webkit-tap-highlight-color:rgba(31,58,92,.12)}
}