:root{--bg:#f5f7fb;--ink:#172033;--muted:#667085;--blue:#2563eb;--dark:#0f172a;--line:#e5e7eb;--card:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}button,input{font:inherit}button{cursor:pointer}.top{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 7vw;position:sticky;top:0;z-index:3}.brand{display:flex;gap:10px;align-items:center;font-weight:800}.logo{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;display:grid;place-items:center;font-size:20px}.nav a{margin:0 12px;color:var(--muted);text-decoration:none}.wrap{max-width:1180px;margin:auto;padding:36px 24px}.hero{padding:64px 0 44px;display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center}.eyebrow{color:var(--blue);font-weight:700;letter-spacing:1px}.hero h1{font-size:48px;line-height:1.08;margin:14px 0}.hero p{color:var(--muted);font-size:18px;line-height:1.7}.btn{border:0;border-radius:10px;padding:12px 18px;background:var(--blue);color:#fff;font-weight:700}.btn.alt{background:#eef2ff;color:#3730a3}.btn.gray{background:#f1f5f9;color:#334155}.hero-card{background:linear-gradient(145deg,#0b1224,#1f2a4a);color:#fff;border-radius:24px;padding:30px;box-shadow:0 20px 50px #17255433}.hero-card .metric{display:flex;justify-content:space-between;border-bottom:1px solid #ffffff22;padding:16px 0;color:#cbd5e1}.section-title{display:flex;justify-content:space-between;align-items:end;margin:24px 0}.section-title h2{margin:0;font-size:28px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 7px 18px #0f172a08}.price{font-size:30px;font-weight:800;margin:12px 0}.specs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:14px 0 22px}.spec{background:#f8fafc;padding:7px 9px;border-radius:7px}.footer{padding:34px 0;color:var(--muted);font-size:13px}.form{max-width:460px;margin:40px auto}.form h2{font-size:32px}.field{margin:14px 0}.field label{display:block;font-weight:700;font-size:13px;margin-bottom:7px}.field input,.field textarea,.field select{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px;background:#fff}.dash{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 68px)}.side{background:#0f172a;color:#cbd5e1;padding:26px 18px}.side h3{color:#fff;padding:0 12px}.side button{display:block;width:100%;text-align:left;background:none;border:0;color:#cbd5e1;padding:12px;border-radius:8px}.side button.active,.side button:hover{background:#1e293b;color:#fff}.main{padding:34px}.statgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.stat .num{font-size:28px;font-weight:800;margin-top:7px}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}.table th,.table td{text-align:left;padding:14px;border-bottom:1px solid var(--line);font-size:14px}.notice{padding:13px;border-radius:10px;background:#eff6ff;color:#1d4ed8;margin:14px 0}.modal{position:fixed;inset:0;background:#0f172a99;display:grid;place-items:center;z-index:5}.modal>div{background:#fff;border-radius:16px;padding:26px;width:min(440px,90vw)}@media(max-width:800px){.hero{grid-template-columns:1fr}.grid,.statgrid{grid-template-columns:1fr}.dash{grid-template-columns:1fr}.side{display:flex;overflow:auto}.side h3{display:none}.side button{min-width:100px}.main{padding:20px}.top{padding:0 20px}.nav a{display:none}}
