:root{--bg:#f3f6fb;--ink:#122033;--muted:#5c6b80;--line:#d7e0ee;--card:#fff;--brand:#0c3b7c;--brand-2:#1366d6;--accent:#12b886;--gold:#c9971a;--danger:#d9480f;--shadow:0 10px 30px rgba(12,40,80,.08)}
*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}
a{color:var(--brand-2);text-decoration:none}a:hover{color:var(--brand)}img{max-width:100%}
.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.site-header{background:linear-gradient(120deg,#07182f,#0c3b7c 55%,#1366d6);color:#fff;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:22px;letter-spacing:.04em}
.logo small{display:block;font-size:11px;font-weight:400;opacity:.8;letter-spacing:.12em}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{color:#d7e6ff;font-size:14px}.nav a:hover,.nav a.on{color:#fff}
.header-user{display:flex;gap:10px;align-items:center}
.btn,.btn-line{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:9px 16px;font-size:14px;cursor:pointer}
.btn{background:var(--accent);color:#063;font-weight:700}.btn:hover{filter:brightness(1.05);color:#063}
.btn-line{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff}
.btn-dark{background:var(--brand);color:#fff}.btn-gold{background:var(--gold);color:#3b2a00}
.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:6px 10px;font-size:12px}
.hero{padding:64px 0 48px;color:#fff;background:radial-gradient(circle at 80% 10%,rgba(18,184,134,.25),transparent 28%),linear-gradient(120deg,#07182f,#0c3b7c 60%,#0a4ea8)}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.hero h1{margin:0 0 12px;font-size:42px;line-height:1.2}
.hero p{color:#c9dbf5;font-size:16px}
.hero-actions{display:flex;gap:12px;margin-top:22px}
.hero-panel{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:22px}
.hero-panel li{margin:10px 0;color:#e7f0ff}
.notice{background:#fff7e0;border:1px solid #f1d48a;color:#7a5b00;border-radius:12px;padding:10px 16px;margin:22px 0}
.section{padding:48px 0}
.section h2{margin:0 0 8px;font-size:28px}
.muted{color:var(--muted)}
.grid-4,.grid-3,.grid-2{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card,.feature,.product-card,.post-item,.form-card{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.feature{padding:22px}.feature b{display:block;margin:8px 0 6px;font-size:18px}
.icon-badge{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#e7f7f1;color:var(--accent);font-weight:800}
.product-card{overflow:hidden}
.product-cover{height:150px;background:linear-gradient(135deg,#0c3b7c,#12b886);display:grid;place-items:center;color:#fff;font-weight:700}
.product-card .body,.post-item{padding:16px}
.price{color:#b7791f;font-weight:800}
.tag{display:inline-block;background:#eef4ff;color:#0c3b7c;border-radius:999px;padding:2px 8px;font-size:12px}
.tag.mer{background:#e9f8f2;color:#087f5b}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.stat{background:rgba(255,255,255,.1);border-radius:14px;padding:14px;text-align:center}
.stat b{display:block;font-size:26px}
.page-head{padding:28px 0 8px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 20px}
.input,select,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:#fff}
label{display:block;margin:0 0 6px;font-weight:600}
.field{margin-bottom:14px}
.flash{padding:10px 14px;border-radius:10px;margin:12px 0}
.flash.ok{background:#d3f9d8;color:#2b8a3e}
.flash.error{background:#ffe3e3;color:#c92a2a}
.pager{display:flex;gap:6px;flex-wrap:wrap;margin:20px 0}
.pager a{padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:#fff}
.pager a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.site-footer{background:#07182f;color:#9eb0c8;padding:36px 0;margin-top:40px}
.site-footer a{color:#c5d6eb}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.auth-wrap{max-width:460px;margin:40px auto}
.product-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.buy-box{padding:20px}
.buy-box h3{margin-top:0}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.table th{background:#eef3fb}
.content-html img{max-width:100%;border-radius:8px}
.attach-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.reply{border-top:1px solid var(--line);padding:14px 0}
@media (max-width:900px){
  .hero-grid,.product-hero,.grid-4,.grid-3,.footer-grid,.stats{grid-template-columns:1fr}
  .header-inner{flex-wrap:wrap;padding:10px 0}
}
.click-captcha-hint{background:#10233f;color:#d7e6ff;border-radius:10px;padding:10px 12px;margin-bottom:8px;font-weight:700}
.click-captcha-board{position:relative;width:100%;max-width:340px;border-radius:12px;overflow:hidden;border:1px solid #1b3b68;cursor:crosshair;user-select:none}
.click-captcha-board img{display:block;width:100%;height:auto;vertical-align:middle;pointer-events:auto;-webkit-user-drag:none}
.click-captcha-marks{position:absolute;left:0;top:0;right:0;bottom:0;pointer-events:none !important;z-index:2}
.click-mark{position:absolute;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;background:#12b886;color:#063;font-size:12px;font-weight:800;display:grid;place-items:center;box-shadow:0 0 0 2px #fff;pointer-events:none}
.click-captcha-bar{display:flex;gap:8px;margin-top:8px}