:root{--bg:#F0EEE6;--bg-sidebar:#262624;--card:#FFFFFF;--text:#3D3D3A;--sub:#8A8A85;--border:#E8E5DC;--accent:#C96442;--accent-hover:#B5593A;--success:#2F6B2F}
*{margin:0;padding:0;box-sizing:border-box}
html,body{font-family:"ui-sans-serif",system-ui,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;background:var(--bg);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.nav{background:var(--bg-sidebar);color:#E5E5E2;padding:14px 32px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}
.nav .brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px}
.nav .brand-ic{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:#E5E5E2;font-size:14px}
.nav-links a:hover{color:#fff;text-decoration:none}
.nav-cta{background:var(--accent);color:#fff !important;padding:8px 16px;border-radius:6px}
.nav-cta:hover{background:var(--accent-hover)}
.container{max-width:1100px;margin:0 auto;padding:48px 24px}
.hero{text-align:center;padding:64px 24px 48px}
.hero h1{font-size:42px;font-weight:700;margin-bottom:16px;color:#1f1f1d}
.hero p{font-size:18px;color:var(--sub);max-width:680px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:32px;margin-bottom:24px}
.card h2{font-size:22px;margin-bottom:12px;color:#1f1f1d}
.card h3{font-size:16px;margin:18px 0 8px;color:#1f1f1d}
.card p,.card li{color:var(--text);margin-bottom:8px}
.card ul,.card ol{padding-left:22px;margin-bottom:12px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 24px;border-radius:8px;border:none;cursor:pointer;font-size:15px;font-weight:500;transition:background .15s}
.btn:hover{background:var(--accent-hover);text-decoration:none;color:#fff}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:#fff;color:var(--text)}
.btn-block{display:block;width:100%;text-align:center}
.input{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;font-family:inherit}
.input:focus{outline:none;border-color:var(--accent)}
.label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px;margin-top:14px}
.form-card{max-width:420px;margin:48px auto;background:#fff;border:1px solid var(--border);border-radius:12px;padding:36px}
.form-card h1{font-size:24px;margin-bottom:6px}
.form-card .sub{color:var(--sub);margin-bottom:24px;font-size:13px}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px;display:none}
.alert.error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;display:block}
.alert.ok{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;display:block}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr}}
.price-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:28px;display:flex;flex-direction:column}
.price-card.featured{border:2px solid var(--accent);position:relative;transform:translateY(-4px)}
.price-card .badge{position:absolute;top:-12px;right:20px;background:var(--accent);color:#fff;font-size:11px;padding:3px 10px;border-radius:10px}
.price-card .name{font-size:14px;color:var(--sub);text-transform:uppercase;letter-spacing:.5px}
.price-card .price{font-size:36px;font-weight:700;margin:8px 0 4px}
.price-card .price small{font-size:14px;color:var(--sub);font-weight:400}
.price-card ul{list-style:none;padding:0;margin:18px 0;flex:1}
.price-card li{padding:6px 0;border-bottom:1px solid var(--border);font-size:13.5px}
.price-card li::before{content:"✓ ";color:var(--success);font-weight:600}
.foot{border-top:1px solid var(--border);background:#EAE7DC;padding:32px 24px;margin-top:48px;color:var(--sub);font-size:13px}
.foot .row{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.foot h4{color:var(--text);font-size:14px;margin-bottom:10px}
.foot a{color:var(--sub);display:block;padding:3px 0}
.foot .copy{max-width:1100px;margin:24px auto 0;padding-top:18px;border-top:1px solid var(--border);text-align:center}
@media(max-width:700px){.foot .row{grid-template-columns:1fr 1fr}.hero h1{font-size:30px}}
table{width:100%;border-collapse:collapse;margin:14px 0}
th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:13.5px}
th{background:#FAF8F2;font-weight:600}