*,*::before,*::after{box-sizing:border-box}
:root{
  --brand:#006CFF;--brand-dark:#0055cc;--brand-soft:#E8F1FF;
  --bg:#F5F7FA;--card:#FFFFFF;--border:#E5E7EB;--radius:10px;
  --text:#111827;--text-2:#374151;--muted:#6B7280;
  --green:#22C55E;--orange:#FB923C;--red:#EF4444;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --shadow:0 1px 2px rgba(17,24,39,.04),0 10px 28px rgba(17,24,39,.06);
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}
.center{text-align:center}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 固定示意徽标 ---------- */
.mock-badge{position:fixed;top:6px;right:14px;z-index:120;display:inline-flex;align-items:center;gap:6px;
  background:#fff;color:var(--brand);border:1px solid var(--brand);border-radius:999px;
  padding:3px 12px;font-size:12px;font-weight:700;line-height:1.5;white-space:nowrap;
  box-shadow:0 6px 18px rgba(0,108,255,.22)}
.mock-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(0,108,255,.16)}
.mock-badge:hover{background:var(--brand);color:#fff}

/* ---------- S1 顶部细条 ---------- */
.topbar{background:#0B1B33;color:#C7D5E8;font-size:12px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding-right:186px}
.topbar-left{margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.tb-item{color:#C7D5E8;white-space:nowrap}
.tb-item b{color:#fff;font-weight:600}
.tb-item+.tb-item::before{content:"｜";margin-right:10px;color:rgba(199,213,232,.35)}
a.tb-item:hover{color:#fff}
.tb-time{color:#9FB2CA}

/* ---------- 顶部细提示条 ---------- */
.hintbar{background:#EAF2FF;border-bottom:1px solid #D6E4FF;color:#2C5E9E;font-size:12px}
.hintbar-inner{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:30px;padding-right:186px}
.hintbar-inner b{color:#1B4C8F}
.hint-right{color:#5B7FAF;white-space:nowrap}

/* ---------- S2 头部 ---------- */
.site-header{position:relative;z-index:40;background:#fff;border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#006CFF,#3B9BFF);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:700;box-shadow:0 6px 14px rgba(0,108,255,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:18px;letter-spacing:.02em}
.logo-text small{font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:2px}
.nav{margin-left:auto;display:flex;align-items:center;gap:2px}
.nav a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);white-space:nowrap}
.nav a:hover{color:var(--brand);background:var(--brand-soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:var(--radius);
  padding:9px 18px;font-size:14px;font-weight:600;line-height:1.4;cursor:pointer;transition:.18s;background:#fff;color:var(--text)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(0,108,255,.24)}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:#fff;border-color:#CFD9E6;color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:12px 26px;font-size:15px}
.hamburger{display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;border-radius:var(--radius);
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- S3 首屏 ---------- */
.hero{padding:44px 0 52px;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#F5F7FA 0%,#EDF3FC 100%)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:44px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #CFE1FF;color:var(--brand-dark);
  border-radius:999px;padding:5px 14px;font-size:12px;font-weight:600}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.hero h1{font-size:40px;line-height:1.18;letter-spacing:-.5px;margin:16px 0 14px;color:#0B1B33}
.hero-sub{font-size:15px;line-height:1.8;color:#4B5563;max-width:548px;margin-bottom:14px}
.hero-meta{font-size:12px;line-height:1.7;color:var(--muted);margin-bottom:22px;display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 6px}
.hero-meta .hm{white-space:nowrap}
.hero-meta .hm-sep{color:#C0C7D2}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}

/* ---------- 看板示意 ---------- */
.dash{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:18px}
.dash-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.dash-title{font-size:13px;font-weight:700;color:#0B1B33}
.tag-demo{font-size:10px;font-weight:600;color:#B45309;background:#FFF7ED;border:1px solid #FCD9A8;border-radius:999px;padding:1px 8px;white-space:nowrap}
.dash-metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.metric{background:#F8FAFF;border:1px solid #E6EEFB;border-radius:10px;padding:10px 12px}
.metric .k{font-size:11px;color:var(--muted);margin-bottom:2px}
.metric .v{font-size:23px;font-weight:700;line-height:1.25;color:#0B1B33;letter-spacing:-.5px}
.chart{margin-top:14px;padding-top:12px;border-top:1px dashed var(--border)}
.chart-cap{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:10px}
.bars{display:flex;align-items:flex-end;gap:8px;height:82px}
.bar{flex:1 1 0;background:linear-gradient(180deg,#93C2FF,#006CFF);border-radius:5px 5px 2px 2px;min-height:6px}
.bar:nth-child(6){background:linear-gradient(180deg,#006CFF,#0047AB)}
.bar-labels{display:flex;gap:8px;margin-top:6px}
.bar-labels span{flex:1 1 0;text-align:center;font-size:10px;color:#9CA3AF}
.src-note{font-size:11px;line-height:1.7;color:#9CA3AF;margin:0}
.dash-note{margin-top:10px}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0}
.section--white{background:#fff}
.sec-head{max-width:780px;margin:0 auto 30px;text-align:center}
.sec-eyebrow{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--brand);text-transform:uppercase;margin-bottom:6px}
.sec-title{font-size:27px;line-height:1.35;letter-spacing:-.3px;color:#0B1B33}
.sec-desc{font-size:14px;color:var(--muted);margin-top:10px}
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.src-line{display:block;font-size:11px;color:#9CA3AF;text-align:center;margin-top:20px}

/* ---------- S4 产品价值 ---------- */
.vcard{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:.18s}
.vcard:hover{border-color:#BBD8FF;box-shadow:0 12px 26px rgba(0,108,255,.10);transform:translateY(-2px)}
.vcard .ic{width:34px;height:34px;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:16px;font-weight:700;margin-bottom:12px}
.vcard h3{font-size:15px;color:#0B1B33;margin-bottom:6px}
.vcard p{font-size:12.5px;line-height:1.75;color:var(--muted)}

/* ---------- S5 tabs ---------- */
.tabs-wrap{display:flex;justify-content:center;margin-bottom:20px}
.tabs{display:inline-flex;gap:4px;background:#fff;border:1px solid var(--border);border-radius:999px;padding:4px;
  box-shadow:0 1px 2px rgba(17,24,39,.04);max-width:100%;flex-wrap:wrap;justify-content:center}
.tab{border:0;background:transparent;color:#4B5563;font-size:14px;font-weight:600;padding:8px 20px;border-radius:999px;
  cursor:pointer;transition:.18s;white-space:nowrap}
.tab:hover{color:var(--brand)}
.tab.active{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(0,108,255,.28)}
.panel{display:none}
.panel.active{display:block}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feat{display:flex;gap:12px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.feat-ic{flex:0 0 32px;width:32px;height:32px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:700}
.feat h4{font-size:14px;color:#0B1B33;margin-bottom:3px}
.feat p{font-size:12px;line-height:1.7;color:var(--muted)}

/* ---------- S6 交付流程 ---------- */
.stepper{display:grid;grid-template-columns:repeat(4,1fr);margin:6px 0 22px}
.step{position:relative;padding:0 12px;text-align:center}
.step::before{content:"";position:absolute;top:20px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,#D6E5FF,#006CFF,#D6E5FF)}
.step:first-child::before{left:50%}
.step:last-child::before{right:50%}
.step-num{position:relative;z-index:2;width:40px;height:40px;margin:0 auto 12px;border-radius:50%;background:#fff;
  border:2px solid var(--brand);color:var(--brand);font-weight:700;display:grid;place-items:center}
.step h3{font-size:15px;color:#0B1B33;margin-bottom:5px;position:relative;z-index:2}
.step p{font-size:12px;line-height:1.7;color:var(--muted);position:relative;z-index:2;background:#fff;padding:0 4px}
.notice{display:flex;gap:10px;align-items:flex-start;border:1px solid #CDE0FF;background:#F2F7FF;color:#134A9B;
  border-radius:var(--radius);padding:11px 15px;font-size:13px;line-height:1.7}
.notice b{font-weight:700}
.notice-mark{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:var(--brand);color:#fff;font-size:11px;
  font-weight:700;display:grid;place-items:center;margin-top:2px}

/* ---------- S7 服务模式 ---------- */
.plan{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:.18s}
.plan:hover{border-color:#BBD8FF;box-shadow:0 12px 26px rgba(0,108,255,.10)}
.plan h3{font-size:16px;color:#0B1B33}
.plan .price{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.plan p{font-size:12.5px;line-height:1.75;color:var(--muted)}
.plan ul{display:flex;flex-direction:column;gap:4px;margin-top:2px}
.plan li{font-size:12px;color:var(--text-2);padding-left:14px;position:relative;line-height:1.7}
.plan li::before{content:"";position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:50%;background:#BBD8FF}

/* ---------- S8 资质与主体 ---------- */
.info{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.info .k{font-size:11px;color:var(--muted);margin-bottom:6px}
.info .v{font-size:13px;font-weight:600;color:#0B1B33;line-height:1.6;word-break:break-all}
.audit{margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;background:#fff;
  border:1px dashed #CBD5E1;border-radius:var(--radius);padding:12px 16px}
.audit-label{font-size:12px;font-weight:700;color:#334155}
.audit-item{display:inline-flex;align-items:center;font-size:12px;color:var(--text-2)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px}
.dot.g{background:var(--green)}
.dot.o{background:var(--orange)}
.dot.r{background:var(--red)}
.audit-memo{font-size:11px;color:var(--muted);margin-left:6px}

/* ---------- S9 资质公示卡片 ---------- */
.qual-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:18px;cursor:pointer;transition:.18s;font-family:inherit}
.qual-card:hover{border-color:var(--brand);box-shadow:0 12px 26px rgba(0,108,255,.12)}
.qual-ic{flex:0 0 44px;width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#E8F1FF,#D6E6FF);
  color:var(--brand);display:grid;place-items:center;font-size:18px;font-weight:700}
.qual-txt{flex:1 1 auto;min-width:0}
.qual-txt b{display:block;font-size:15px;color:#0B1B33;margin-bottom:2px}
.qual-txt span{font-size:12px;color:var(--muted);line-height:1.6;display:block}
.qual-go{flex:0 0 auto;color:#9CA3AF;font-size:18px;font-weight:700}

/* ---------- S10 空态 ---------- */
.empty{background:#fff;border:1px dashed #CFD9E6;border-radius:14px;padding:40px 20px;text-align:center}
.empty-art{width:104px;height:104px;margin:0 auto 16px;border-radius:50%;border:2px dashed #CBD5E1;
  display:grid;place-items:center;position:relative}
.empty-art::before{content:"";width:54px;height:54px;border-radius:50%;
  background:linear-gradient(135deg,#E8F1FF,#D6E6FF);border:2px solid #BBD8FF}
.empty-art::after{content:"";position:absolute;left:50%;bottom:-14px;width:2px;height:16px;background:#CBD5E1;transform:translateX(-50%)}
.empty h3{font-size:16px;color:#0B1B33;margin-bottom:8px}
.empty p{font-size:13px;color:var(--muted);line-height:1.8;max-width:560px;margin:0 auto}
.empty-lines{display:flex;flex-direction:column;gap:6px;align-items:center;margin-top:14px}
.empty-lines i{display:block;height:6px;border-radius:3px;background:#EEF2F7;width:180px}
.empty-lines i:nth-child(2){width:120px}

/* ---------- S11 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:20px;align-items:start}
.about-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px}
.about-card p{font-size:13.5px;line-height:1.95;color:#374151}
.about-card p+p{margin-top:12px}
.about-side{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}
.about-side h3{font-size:14px;color:#0B1B33;margin-bottom:10px}
.about-side dl{display:grid;grid-template-columns:78px 1fr;gap:8px 10px;font-size:12.5px}
.about-side dt{color:var(--muted)}
.about-side dd{color:#0B1B33;font-weight:600;word-break:break-all}

/* ---------- S12 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ccard{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.ccard .k{font-size:11px;color:var(--muted);margin-bottom:6px}
.ccard .v{font-size:17px;font-weight:700;color:#0B1B33;word-break:break-all;line-height:1.5}
.ccard .v.small{font-size:14px}
.ccard .n{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.7}
.monitor{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px 24px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:14px 18px;font-size:12.5px;color:var(--text-2)}
.monitor b{color:#0B1B33}

/* ---------- S13 页脚 ---------- */
.footer{background:#0B1B33;color:#B8C6DA;padding:40px 0 0;font-size:13px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:24px}
.footer h4{font-size:13px;color:#fff;margin-bottom:12px;letter-spacing:.06em}
.footer p,.footer li{font-size:12.5px;line-height:1.9}
.footer a{color:#B8C6DA}
.footer a:hover{color:#fff}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .logo-mark{width:32px;height:32px;font-size:16px;box-shadow:none}
.footer-brand b{color:#fff;font-size:15px}
.footer .back{padding-left:10px}
.footer .back::before{content:"｜";margin-right:6px;color:rgba(184,198,218,.35)}
.footer-bottom{margin-top:30px;border-top:1px solid rgba(255,255,255,.10);padding:14px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:#8CA0BC}
.footer-bottom a{color:#8CA0BC;text-decoration:underline;text-underline-offset:2px}

/* ---------- S14 悬浮客服 ---------- */
.svc{position:fixed;right:16px;bottom:88px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.svc-btn{width:48px;height:48px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--brand);
  box-shadow:0 8px 20px rgba(17,24,39,.14);display:grid;place-items:center;cursor:pointer;padding:0}
.svc-btn:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.svc-btn svg{width:20px;height:20px}
.svc-panel{background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:0 14px 34px rgba(17,24,39,.16);
  padding:12px;width:168px}
.svc-panel h5{font-size:12px;color:#0B1B33;margin:0 0 6px}
.svc-panel p{font-size:11px;color:var(--muted);line-height:1.7;margin:0}
.qr-art{width:88px;height:88px;border-radius:8px;border:1px solid var(--border);margin:0 auto 8px;
  background-color:#fff;
  background-image:repeating-conic-gradient(rgba(17,24,39,.55) 0 25%,transparent 0 50%);
  background-size:14px 14px}
.qr-label{display:block;text-align:center;font-size:11px;color:var(--muted)}

/* ---------- 模态框 ---------- */
.overlay{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px;
  background:rgba(11,27,51,.52)}
.overlay.open{display:flex}
.modal{position:relative;width:100%;max-width:560px;max-height:86vh;overflow:auto;background:#fff;border-radius:14px;
  box-shadow:0 24px 60px rgba(11,27,51,.30);padding:22px 24px 20px}
.modal-close{position:absolute;top:12px;right:12px;width:30px;height:30px;border-radius:8px;border:1px solid var(--border);
  background:#fff;color:var(--muted);font-size:17px;line-height:1;cursor:pointer}
.modal-close:hover{color:var(--text);border-color:#CFD9E6}
.modal h3{font-size:18px;color:#0B1B33;padding-right:36px;margin-bottom:4px}
.modal-sub{font-size:12px;color:var(--muted);margin-bottom:14px}
.dl{display:grid;grid-template-columns:112px 1fr;gap:9px 12px;font-size:13px}
.dl dt{color:var(--muted)}
.dl dd{color:#0B1B33;font-weight:600;word-break:break-all;line-height:1.7}
.lic-ph{margin-top:16px;border:1px dashed #CFD9E6;border-radius:10px;background:#F8FAFF;min-height:112px;
  display:grid;place-items:center;text-align:center;color:#9CA3AF;font-size:12px;line-height:1.7;padding:12px}
.modal-note{margin-top:14px;font-size:11px;line-height:1.7;color:#9CA3AF}
.modal .btn{margin-top:16px}
.qr-inline{width:96px;height:96px;border-radius:8px;border:1px solid var(--border);margin-bottom:6px;
  background-color:#fff;
  background-image:repeating-conic-gradient(rgba(17,24,39,.55) 0 25%,transparent 0 50%);
  background-size:15px 15px}
.demo-grid{display:grid;grid-template-columns:1fr 120px;gap:18px;align-items:start;margin-top:6px}
.demo-grid .qr-wrap{text-align:center}
.demo-grid .qr-wrap span{font-size:11px;color:var(--muted)}
.icp-link{word-break:break-all;font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav a{padding:8px 7px;font-size:13px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero h1{font-size:34px}
  .hero-sub{max-width:none}
  .grid-3,.grid-4,.feat-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .sec-title{font-size:24px}
  .stepper{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .step:nth-child(2)::before{right:50%}
  .step:nth-child(3)::before{left:50%}
  .footer-grid{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .topbar-inner{padding-right:140px;padding-left:12px;font-size:11px;gap:8px;justify-content:flex-end}
  .topbar-left{display:none}
  .hintbar-inner{padding-right:140px;padding-left:12px;font-size:11px}
  .hint-right{display:none}
  .tb-time{display:none}
  .header-inner{min-height:64px;gap:12px}
  .hamburger{display:flex}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:2px;margin:0;padding:8px 16px 14px;background:#fff;border-bottom:1px solid var(--border);
    box-shadow:0 14px 28px rgba(17,24,39,.10)}
  .nav.open{display:flex}
  .nav a{padding:12px 10px;font-size:15px;border-radius:8px}
  .mock-badge{top:5px;right:8px;font-size:10px;padding:2px 9px}
  .svc{right:10px;bottom:14px}
  .svc-btn{width:42px;height:42px;border-radius:10px}
  .demo-grid{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero{padding:32px 0 40px}
}
@media (max-width:620px){
  .hero h1{font-size:28px}
  .hero-sub{font-size:14px}
  .hero-actions .btn{flex:1 1 auto}
  .sec-title{font-size:21px}
  .grid-3,.grid-4,.feat-grid,.contact-grid,.grid-2,.qual-grid{grid-template-columns:1fr}
  .stepper{grid-template-columns:1fr;row-gap:22px}
  .step::before{display:none}
  .footer-grid{grid-template-columns:1fr}
  .tb-qual{display:none}
  .hero-meta .hm-sep{display:none}
  .tb-qual+.tb-item::before{content:none}
  .topbar-inner{padding-right:132px}
  .about-side dl{grid-template-columns:70px 1fr}
}
@media (max-width:420px){
  .container{padding:0 12px}
  .topbar-inner{padding-right:126px;padding-left:12px}
  .mock-badge{font-size:9px;padding:2px 7px;right:6px}
  .hintbar-inner{padding-right:126px;padding-left:12px}
  .dash{padding:14px}
  .metric .v{font-size:20px}
  .dl{grid-template-columns:1fr;gap:2px 0}
  .dl dt{margin-top:8px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* 客户案例：行业场景（Q7 B） */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.case-card{background:#F8FAFF;border:1px solid #E3ECFA;border-radius:12px;padding:20px 20px 18px}
.case-tag{display:inline-block;font-size:11px;font-weight:700;color:var(--brand-dark);background:var(--brand-soft);border-radius:999px;padding:2px 10px;margin-bottom:10px}
.case-card h3{font-size:16px;color:#0B1B33;margin:0 0 6px}
.case-card p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}
.cases-note{font-size:12px;color:var(--muted);text-align:center;margin-top:14px}
@media (max-width:900px){.cases-grid{grid-template-columns:1fr}}


/* ===== 生产站覆盖：去掉示意徽标/提示条/来源行留下的间距 ===== */
.topbar-inner{padding-right:16px !important}
@media (max-width:420px){.topbar-inner{padding-right:12px !important}}
.hintbar,.mock-badge{display:none !important}
.nav a[aria-current="page"]{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.lic-img{display:block;width:100%;max-width:760px;height:auto;border:1px solid var(--border);border-radius:10px;margin:14px 0}

/* ===== 文档页（关于/资质/隐私/协议/投诉） ===== */
.doc-wrap{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:16px;padding:40px 44px;box-shadow:var(--shadow)}
.doc-wrap h1{font-size:28px;line-height:1.3;color:#0B1B33;margin-bottom:6px}
.doc-wrap .updated{font-size:12px;color:var(--muted);margin-bottom:22px}
.doc-wrap h2{font-size:17px;color:#0B1B33;margin:24px 0 8px;padding-left:10px;border-left:3px solid var(--brand)}
.doc-wrap p,.doc-wrap li{font-size:14px;line-height:1.95;color:var(--text-2)}
.doc-wrap p{margin:6px 0}
.doc-wrap ul,.doc-wrap ol{margin:6px 0 6px 20px;padding:0}
.doc-wrap ul{list-style:disc}
.doc-wrap ol{list-style:decimal}
.doc-wrap li{margin:4px 0}
.doc-wrap a{color:var(--brand)}
.doc-dl{display:grid;grid-template-columns:120px 1fr;gap:4px 12px;font-size:13.5px;margin:8px 0}
.doc-dl dt{color:var(--muted)}
.doc-dl dd{margin:0;color:var(--text-2)}
.doc-actions{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:640px){.doc-wrap{padding:24px 18px}.doc-dl{grid-template-columns:1fr}.doc-dl dt{margin-top:8px}}

.demo-side h4{font-size:13px;color:#0B1B33;margin:0 0 6px}
.demo-side p{font-size:12.5px;color:var(--muted);line-height:1.8;margin:0}