:root{
  --bg:#ffffff;
  --bg-alt:#fff7f0;
  --surface:#ffffff;
  --surface-2:#fff1e4;
  --line:#f0e4d8;
  --line-strong:#e6d5c3;
  --text:#2b2118;
  --text-dim:#8a7a6b;
  --accent:#f97316;
  --accent-strong:#ea580c;
  --accent-deep:#c2410c;
  --accent-dim:rgba(249,115,22,.1);
  --warn:#d97706;
  --danger:#dc2626;
  --ok:#16a34a;
  --radius:10px;
  --radius-lg:16px;
  --shadow-sm:0 1px 3px rgba(194,65,12,.06),0 1px 2px rgba(43,33,24,.04);
  --shadow-lg:0 24px 60px rgba(249,115,22,.12),0 4px 12px rgba(43,33,24,.06);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.mono{font-family:var(--mono)}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{color:var(--accent);display:grid;place-items:center}
.brand-name{font-size:18px;font-weight:400;letter-spacing:.2px}
.brand-name strong{color:var(--accent);font-weight:700}
.brand-tag{margin-left:8px;font-size:12px;color:var(--text-dim);border:1px solid var(--line-strong);border-radius:4px;padding:1px 8px}
.main-nav{display:flex;align-items:center;gap:26px;font-size:14px}
.main-nav a:not(.nav-cta){color:var(--text-dim)}
.main-nav a:not(.nav-cta):hover{color:var(--accent-strong)}
.nav-cta{color:#fff;background:var(--accent);border-radius:999px;padding:7px 18px;transition:background .2s}
.nav-cta:hover{background:var(--accent-strong)}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px}
.menu-toggle span{width:22px;height:2px;background:var(--text);display:block}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:8px;padding:11px 22px;font-size:15px;font-weight:600;border:1px solid transparent;transition:all .2s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(249,115,22,.25)}
.btn-primary:hover{background:var(--accent-strong);box-shadow:0 6px 20px rgba(234,88,12,.3)}
.btn-ghost{border-color:var(--line-strong);color:var(--text-dim);background:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-strong)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-sm{padding:6px 14px;font-size:13px}

/* Hero */
.hero{padding:88px 0 72px;background:radial-gradient(900px 420px at 80% 0%,rgba(249,115,22,.1),transparent 60%),var(--bg-alt);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-eyebrow{color:var(--accent-strong);font-size:13px;letter-spacing:2px;font-weight:600;text-transform:uppercase;margin-bottom:16px}
h1{font-size:44px;line-height:1.2;font-weight:700;letter-spacing:-.5px;color:var(--text)}
.hero-sub{color:var(--text-dim);margin:20px 0 28px;font-size:16px;max-width:52ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:40px;list-style:none}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats strong{font-size:26px;color:var(--accent-strong)}
.hero-stats span{font-size:13px;color:var(--text-dim)}

/* Hero visual */
.hero-visual{position:relative}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}
.cert-card-head{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:14px}
.dot{width:9px;height:9px;border-radius:50%}
.dot-ok{background:var(--ok);box-shadow:0 0 8px rgba(22,163,74,.4)}
.badge{font-size:12px;padding:2px 10px;border-radius:999px}
.badge-ok{background:rgba(22,163,74,.1);color:var(--ok)}
.badge-pending{background:rgba(217,119,6,.12);color:var(--warn)}
.badge-expired{background:rgba(220,38,38,.1);color:var(--danger)}
.cert-card-body{padding:18px 20px;display:grid;gap:10px}
.kv{display:flex;justify-content:space-between;gap:16px;font-size:14px}
.kv span{color:var(--text-dim)}
.kv b{font-weight:600;text-align:right}
.kv .break{word-break:break-all;max-width:60%}
.cert-card-foot{padding:14px 20px;border-top:1px solid var(--line);background:var(--bg-alt)}
.lock-row{display:flex;align-items:center;gap:8px;color:var(--ok);font-size:13px}
.cert-mini{position:absolute;font-size:12px;color:var(--text-dim);background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 12px;box-shadow:var(--shadow-sm)}
.cert-mini-a{top:-18px;right:24px;transform:rotate(3deg)}
.cert-mini-b{bottom:-16px;left:-10px;transform:rotate(-2deg)}

/* Sections */
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-eyebrow{color:var(--accent-strong);font-size:13px;letter-spacing:2px;font-weight:600;text-transform:uppercase}
.section-title{font-size:32px;font-weight:700;margin:10px 0 8px}
.section-sub{color:var(--text-dim);margin-bottom:40px;max-width:64ch}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;display:flex;flex-direction:column;gap:14px;transition:border-color .2s,transform .2s,box-shadow .2s;box-shadow:var(--shadow-sm)}
.price-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.price-card.hot{border-color:var(--accent);position:relative}
.price-card.hot::before{content:"热销";position:absolute;top:14px;right:14px;font-size:12px;color:#fff;background:var(--accent);border-radius:999px;padding:2px 10px}
.price-brand{font-size:13px;color:var(--text-dim);letter-spacing:1px;text-transform:uppercase}
.price-name{font-size:19px;font-weight:700}
.price-amount{font-size:34px;font-weight:700;color:var(--accent-strong)}
.price-amount small{font-size:14px;color:var(--text-dim);font-weight:400}
.price-feats{list-style:none;display:grid;gap:8px;font-size:14px;color:var(--text-dim)}
.price-feats li::before{content:"✓";color:var(--accent);margin-right:8px;font-weight:700}
.price-card .btn{justify-content:center;margin-top:auto}

/* Solutions */
.solutions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sol-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.sol-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg)}
.sol-num{color:var(--accent);font-size:14px;font-weight:700;margin-bottom:12px}
.sol-card h3{font-size:17px;margin-bottom:8px}
.sol-card p{font-size:14px;color:var(--text-dim)}

/* Why */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.why-list{list-style:none;display:grid;gap:18px}
.why-list li{border-left:2px solid var(--accent);padding-left:16px}
.why-list b{display:block;font-size:16px}
.why-list span{font-size:14px;color:var(--text-dim)}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0;background:var(--bg-alt)}
.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.footer-note{font-size:13px;color:var(--text-dim)}

/* Console */
.console-body{background:var(--bg)}
.console-main{padding:36px 20px 80px}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.panel-head h2{font-size:24px}
.tab-panel{animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.main-nav .tab-link.active{color:var(--accent-strong)}

.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.stat-box{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px}
.stat-box b{font-size:26px;display:block}
.stat-box span{font-size:13px;color:var(--text-dim)}
.stat-box b.ok{color:var(--ok)}
.stat-box b.pending{color:var(--warn)}

.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto;box-shadow:var(--shadow-sm)}
.cert-table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
.cert-table th,.cert-table td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line)}
.cert-table th{color:var(--text-dim);font-weight:500;font-size:13px;background:var(--bg-alt)}
.cert-table tr:last-child td{border-bottom:0}
.empty-hint{color:var(--text-dim);text-align:center;padding:40px 0}

/* Forms */
.apply-form,.result-card,.api-doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;max-width:720px;box-shadow:var(--shadow-sm)}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;margin-bottom:8px;color:var(--text-dim)}
.req{color:var(--danger)}
.form-group input,.form-group select{width:100%;background:#fff;border:1px solid var(--line-strong);border-radius:8px;color:var(--text);padding:11px 14px;font-size:15px;transition:border-color .2s}
.form-group input:focus,.form-group select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-dim)}
.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.form-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.field-err{color:var(--danger);font-size:13px;margin-top:6px}
.form-msg{font-size:14px;color:var(--text-dim)}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--danger)}

.result-card{margin-top:24px}
.result-card h3{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.result-sub{color:var(--text-dim);font-size:14px;margin-bottom:18px}
.verify-box{border:1px dashed var(--accent);border-radius:var(--radius);padding:18px;display:grid;gap:10px;margin-bottom:18px;background:var(--bg-alt)}
.result-actions{display:flex;gap:12px;flex-wrap:wrap}
.code-block{background:#1c1410;border:1px solid var(--line);border-radius:8px;padding:16px;font-size:13px;overflow-x:auto;color:#ffd9b8;margin:16px 0;white-space:pre}
.api-doc ol{padding-left:20px;display:grid;gap:10px;font-size:14px;color:var(--text-dim);margin-bottom:8px}
.api-doc code{color:var(--accent-deep);background:var(--accent-dim);padding:1px 6px;border-radius:4px;font-size:13px}
.api-note{font-size:13px;color:var(--text-dim);border-top:1px solid var(--line);padding-top:14px;margin-top:8px}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.why-grid{grid-template-columns:1fr;gap:40px}
  .pricing-grid,.solutions-grid{grid-template-columns:1fr 1fr}
  h1{font-size:34px}
  .stat-row{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}
@media (max-width:640px){
  .pricing-grid,.solutions-grid{grid-template-columns:1fr}
  .main-nav{position:fixed;inset:64px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:18px 20px;gap:16px;display:none;box-shadow:var(--shadow-lg)}
  .main-nav.open{display:flex}
  .menu-toggle{display:flex}
  .hero{padding:56px 0 48px}
  .section{padding:56px 0}
  .cert-mini{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}