:root{
  --navy:#15243b; --navy-2:#1e3354; --gold:#b98a2f; --gold-light:#d8b05e;
  --bg:#faf9f6; --card:#fff; --text:#2b2f36; --muted:#6b7280; --line:#e6e2d8;
  --red:#a52a2a; --green:#1c6b48; --radius:10px; --max:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{overflow-x:clip}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.7}
h1,h2,h3,.serif{font-family:"Noto Serif SC","Songti SC",Georgia,serif;color:var(--navy)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
button{font-family:inherit;cursor:pointer}

/* header */
header.top{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(6px);border-bottom:3px solid var(--gold)}
.top .inner{max-width:var(--max);margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:11px}
.brand .m{width:40px;height:40px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#e9c87c,var(--gold) 60%,#8a6516);
  display:flex;align-items:center;justify-content:center;color:#fff;font-family:Georgia,serif;font-weight:700;font-size:18px;
  box-shadow:inset 0 0 0 3px rgba(255,255,255,.35)}
.brand .n{font-size:18px;font-weight:700;color:var(--navy);letter-spacing:1px;line-height:1.2}
.brand .s{font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.top nav{display:flex;gap:22px;font-size:15px;margin-left:6px}
.top nav a{color:#3c4350;padding:5px 0;border-bottom:2px solid transparent}
.top nav a:hover{color:var(--gold);border-bottom-color:var(--gold)}
.top .user{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:14.5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:6px;padding:10px 22px;font-size:14.5px;transition:.2s}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-light)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--navy)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-lg{padding:13px 30px;font-size:16px}

/* hero */
.hero{background:linear-gradient(rgba(21,36,59,.9),rgba(21,36,59,.96)),repeating-conic-gradient(from 0deg at 78% 25%,#22385c 0deg 12deg,#1a2c49 12deg 24deg);
  color:#f3efe4;padding:56px 0 48px}
.hero .kicker{color:var(--gold-light);letter-spacing:4px;font-size:12.5px;text-transform:uppercase}
.hero h1{color:#f3efe4;font-size:clamp(26px,3.8vw,40px);margin:10px 0 14px}
.hero p{color:#c9cdd6;max-width:600px}
.hero .row{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center}
@media(max-width:860px){.hero .row{grid-template-columns:1fr}}
.hero .stats{display:flex;gap:26px;margin-top:24px;flex-wrap:wrap}
.hero .stats div b{display:block;font-family:Georgia,serif;font-size:26px;color:var(--gold-light)}
.hero .stats div span{font-size:13px;color:#aeb6c4}
.hero .next{background:rgba(255,255,255,.06);border:1px solid rgba(216,176,94,.35);border-radius:var(--radius);padding:20px 22px}
.hero .next .t{font-size:13px;color:var(--gold-light);letter-spacing:2px}
.hero .next h3{color:#fff;font-size:18px;margin:6px 0 8px}
.hero .next .cd{font-family:Georgia,serif;font-size:26px;color:#fff;letter-spacing:1px}
.hero .next .cd small{font-size:12px;color:#aeb6c4;font-family:inherit;letter-spacing:1px;margin-left:3px}

/* section */
section{padding:46px 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px;gap:12px;flex-wrap:wrap}
.sec-head h2{font-size:25px}
.sec-head .sub{color:var(--muted);font-size:14px}

/* session cards */
.sess-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:820px){.sess-grid{grid-template-columns:1fr}}
.sess{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;transition:.2s}
.sess:hover{box-shadow:0 12px 28px rgba(21,36,59,.1);transform:translateY(-3px)}
.sess .cover{width:190px;flex:none;background:#f1eee7 center/cover no-repeat;position:relative}
@media(max-width:520px){.sess{flex-direction:column}.sess .cover{width:100%;height:160px}}
.sess .cover .cat{position:absolute;left:10px;top:10px;background:rgba(21,36,59,.85);color:#fff;font-size:12px;padding:2px 10px;border-radius:20px}
.sess .body{padding:18px 20px;flex:1;display:flex;flex-direction:column}
.sess h3{font-size:17px;line-height:1.45}
.sess .meta{font-size:13.5px;color:var(--muted);margin-top:8px;display:flex;gap:14px;flex-wrap:wrap}
.sess .foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;gap:12px}
.sess .price{font-size:13.5px;color:var(--muted)}
.sess .price b{color:var(--red);font-size:15px}
.sess .foot .btn{margin-left:auto;padding:8px 16px;font-size:13.5px}
.cd-pill{font-family:Geist,ui-monospace,monospace;background:#f6efdd;color:#8a6516;border:1px solid #e5d5ab;border-radius:20px;padding:1px 10px;font-size:12.5px}
.cd-pill.over{background:#f1f1f1;color:#888;border-color:#ddd}

/* lot grid */
.toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.toolbar input[type=search]{padding:9px 12px;border:1px solid #d8d3c6;border-radius:6px;font-size:14px;min-width:220px;font-family:inherit}
.toolbar select{padding:9px 10px;border:1px solid #d8d3c6;border-radius:6px;font-size:14px;background:#fff;font-family:inherit}
.toolbar .sp{margin-left:auto;color:var(--muted);font-size:13.5px}
.lots{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1040px){.lots{grid-template-columns:repeat(3,1fr)}}
@media(max-width:780px){.lots{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.lots{grid-template-columns:1fr}}
.lot{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.lot:hover{box-shadow:0 10px 24px rgba(21,36,59,.1);transform:translateY(-2px)}
.lot .img{position:relative;background:#fff;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:8px;border-bottom:1px solid var(--line)}
.lot .img img{max-height:100%;object-fit:contain}
.lot .img .no{position:absolute;left:8px;top:8px;background:rgba(21,36,59,.88);color:var(--gold-light);font-size:12px;padding:1px 9px;border-radius:20px}
.lot .b{position:absolute;right:8px;top:8px;font-size:11.5px;background:#fdecec;color:var(--red);border-radius:4px;padding:1px 7px}
.lot .info{padding:11px 12px 13px;display:flex;flex-direction:column;flex:1}
.lot h4{font-size:13.5px;font-weight:600;line-height:1.45;color:#222;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:39px}
.lot .p{margin-top:auto;padding-top:8px;display:flex;align-items:baseline;gap:6px}
.lot .p .cur{color:var(--red);font-weight:700;font-size:16px;font-family:Georgia,serif}
.lot .p .lbl{font-size:12px;color:var(--muted)}
.lot .sub2{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;margin-top:2px}
.lead-badge{color:var(--green);font-weight:600}

/* detail */
.detail{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:start}
@media(max-width:900px){.detail{grid-template-columns:1fr}}
.gallery .main{border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:18px;aspect-ratio:1/1}
.gallery .main img{max-height:100%;object-fit:contain}
.gallery .thumbs{display:flex;gap:10px;margin-top:10px}
.gallery .thumbs img{width:68px;height:68px;object-fit:cover;border:1px solid var(--line);border-radius:6px;cursor:pointer}
.gallery .thumbs img.on{border-color:var(--gold)}
.crumb{font-size:13px;color:var(--muted);margin-bottom:10px}
.crumb a:hover{color:var(--gold)}
.detail h1{font-size:24px;line-height:1.45}
.meta-tags{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 18px}
.tag{font-size:12.5px;background:#eef2f7;color:#41546f;border-radius:4px;padding:2px 10px}
.price-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.price-box .lbl{font-size:13px;color:var(--muted)}
.price-box .cur{font-family:Georgia,serif;font-size:36px;color:var(--red);font-weight:700;line-height:1.2}
.price-box .cur small{font-size:15px;margin-right:3px}
.price-box .row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.price-box .timer{font-family:Geist,ui-monospace,monospace;background:#15243b;color:#fff;border-radius:6px;padding:6px 12px;font-size:14px}
.price-box .timer.over{background:#eee;color:#777}
.price-box .hint{font-size:13px;color:var(--muted);margin-top:8px}
.bid-form{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.bid-form input{flex:1;min-width:160px;padding:12px 14px;border:1px solid #d8d3c6;border-radius:6px;font-size:17px;font-family:Georgia,serif}
.bid-form input:focus{outline:2px solid var(--gold-light);border-color:var(--gold)}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.quick button{background:#fff;border:1px solid #ddd6c6;border-radius:20px;padding:6px 14px;font-size:13px;color:#41546f}
.quick button:hover{border-color:var(--gold);color:var(--gold)}
.mybid{margin-top:12px;font-size:13.5px;padding:9px 12px;border-radius:6px;background:#f6f8f4;color:#3f5a44}
.mybid.warn{background:#fdf1ee;color:#a5423a}
.msg{margin-top:10px;font-size:14px;min-height:20px}
.msg.err{color:var(--red)}
.msg.ok{color:var(--green)}
.hist{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.hist h3{font-size:16px;padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.hist h3 .live{font-size:11.5px;color:var(--red);border:1px solid #f0c9c9;background:#fdf1f1;border-radius:20px;padding:0 8px}
.hist ul{list-style:none;max-height:320px;overflow:auto}
.hist li{display:flex;align-items:center;gap:12px;padding:11px 18px;border-bottom:1px solid #f2efe7;font-size:14px}
.hist li:last-child{border-bottom:none}
.hist li .who{color:#3c4350}
.hist li .amt{font-family:Georgia,serif;color:var(--red);font-weight:700}
.hist li .t{margin-left:auto;color:var(--muted);font-size:12.5px}
.hist li.top{background:#fffdf5}

/* forms */
.auth{max-width:420px;margin:56px auto 80px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 28px 32px}
.auth h1{font-size:22px;margin-bottom:4px}
.auth .sub{color:var(--muted);font-size:13.5px;margin-bottom:20px}
.tabs{display:flex;gap:6px;margin-bottom:18px;background:#f4f1ea;border-radius:8px;padding:4px}
.tabs button{flex:1;border:none;background:none;padding:8px;border-radius:6px;font-size:14.5px;color:#5b6270}
.tabs button.on{background:#fff;color:var(--navy);font-weight:700;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;color:#3c4350;margin-bottom:5px}
.field input{width:100%;padding:11px 12px;border:1px solid #d8d3c6;border-radius:6px;font-size:15px;font-family:inherit}
.field input:focus{outline:2px solid var(--gold-light);border-color:var(--gold)}
.auth .btn{width:100%}

/* table */
.tbl{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{padding:12px 14px;text-align:left;border-bottom:1px solid #f2efe7}
.tbl th{background:#faf8f3;font-size:13px;color:#5b6270;font-weight:600}
.tbl tr:last-child td{border-bottom:none}
.badge{font-size:12px;border-radius:4px;padding:1px 8px}
.badge.ok{background:#eaf5ee;color:var(--green)}
.badge.out{background:#fdf1ee;color:#a5423a}
.badge.win{background:#f6efdd;color:#8a6516}
.badge.end{background:#f1f1f1;color:#777}

footer.site{background:#0f1a2b;color:#8f9aad;padding:32px 0 22px;font-size:13.5px;margin-top:60px}
footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:26px;margin-bottom:22px}
footer.site h4{color:#e8e2d2;font-size:14.5px;margin-bottom:8px}
footer.site a:hover{color:var(--gold-light)}
footer.site .bottom{border-top:1px solid #24334c;padding-top:14px;color:#6d7b93;font-size:12.5px}
.notice{background:#fdf8ea;border:1px solid #f0e2bf;color:#7a6320;font-size:13px;border-radius:8px;padding:10px 14px;margin:18px 0}
.empty{padding:40px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius)}
.toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(20px);background:#15243b;color:#fff;padding:12px 22px;border-radius:8px;font-size:14px;opacity:0;transition:.25s;z-index:200;pointer-events:none;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 导航含「英国拍卖中国币目录」后，窄视口压缩间距防溢出 */
@media (max-width:1240px){.top .inner{gap:16px}.top nav{gap:13px;font-size:14px}}
@media (max-width:1080px){.top nav{gap:9px;font-size:13.5px}.top .inner{flex-wrap:wrap}}