:root {
--bg:#f7f0df;
--bg2:#f2e9d3;
--bg3:#ebe0c4;
--bg4:#e0d1aa;
--ink:#3c3224;
--ink2:#5c4f38;
--ink3:#7a6b4f;
--line:rgba(160,108,44,.16);
--line-soft:rgba(160,108,44,.18);
--gold:#b97838;
--gold-2:#996029;
--gold-3:#70481e;
--red:#a8432f;
--blue:#7fa6a0;
--shadow:rgba(0,0,0,.22);
--display:Georgia,"Songti SC",serif;
--sans:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
background-color:var(--bg);
background-image:
radial-gradient(1100px 620px at 50% -8%,rgba(185,120,56,.10),transparent 62%),
radial-gradient(900px 520px at 94% 6%,rgba(185,120,56,.05),transparent 60%),
repeating-linear-gradient(0deg,rgba(145,100,45,.014) 0 1px,transparent 1px 3px),
repeating-linear-gradient(90deg,rgba(145,100,45,.010) 0 1px,transparent 1px 4px);
color:var(--ink);
font-family:var(--sans);
line-height:1.75;
overflow-x:hidden;
}
body::before {
content:""; position:fixed; inset:0; pointer-events:none; z-index:1; opacity:.03;
background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(images/1fdb5143-33b4-4b10-811d-ffdfbf0c8527.jpg)'/%3E%3C/svg%3E");
}
body::after {
content:""; position:fixed; inset:0; pointer-events:none; z-index:2;
box-shadow:inset 0 0 160px rgba(120,80,30,.12);
}
::selection { background:var(--gold); color:var(--bg); }

/* Header */
.site-header {
position:sticky; top:0; z-index:100;
background:rgba(247,240,223,.82);
backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
border-bottom:1px solid var(--line);
}
.header-inner { max-width:1240px; margin:0 auto; padding:14px 30px; display:flex; align-items:center; gap:24px; }
.brand { display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink); flex-shrink:0; }
.brand img { width:36px; height:36px; object-fit:cover; border-radius:8px; border:1px solid var(--line); }
.brand span { font-family:var(--display); font-size:21px; font-weight:700; letter-spacing:1px; }
.main-nav { display:flex; gap:18px; overflow-x:auto; scrollbar-width:none; flex:1; }
.main-nav::-webkit-scrollbar { display:none; }
.main-nav a { color:var(--ink2); text-decoration:none; font-size:14px; white-space:nowrap; padding:4px 0; transition:color .2s; }
.main-nav a:hover { color:var(--gold); }
.btn-download-sm {
background:var(--gold); color:#fff; padding:9px 18px; border-radius:6px; font-size:14px;
text-decoration:none; white-space:nowrap; transition:background .2s; flex-shrink:0;
}
.btn-download-sm:hover { background:var(--gold-2); }

/* Container */
.container { max-width:1240px; margin:0 auto; padding:0 30px; position:relative; z-index:3; }
.sec { padding-top:104px; }
.sec-first { padding-top:60px; }
.sec-head { display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:32px; gap:20px; flex-wrap:wrap; }
.sec-head h2 { font-family:var(--display); font-size:34px; font-weight:700; color:var(--ink); line-height:1.3; }
.sec-head h2 em { font-style:normal; color:var(--gold); }
.sec-head .sub { color:var(--ink3); font-size:14px; text-align:right; }
@media (max-width:768px) { .sec-head .sub { text-align:left; } }

/* Hero */
.hero { display:grid; grid-template-columns:1.1fr .9fr; gap:50px; align-items:center; padding-top:70px; padding-bottom:20px; }
.hero-tag {
display:inline-block; background:var(--gold); color:#fff; font-size:12px;
padding:4px 12px; border-radius:3px; letter-spacing:1px; margin-bottom:20px;
}
.hero h1 { font-family:var(--display); font-size:52px; line-height:1.2; font-weight:700; color:var(--ink); margin-bottom:20px; }
.hero h1 em { font-style:normal; color:var(--gold); }
.hero-desc { color:var(--ink2); font-size:16px; max-width:520px; margin-bottom:28px; }
.hero-btns { display:flex; gap:14px; flex-wrap:wrap; }
.btn-primary {
background:var(--gold); color:#fff; padding:13px 30px; border-radius:6px;
text-decoration:none; font-size:15px; transition:background .2s; display:inline-block;
}
.btn-primary:hover { background:var(--gold-2); }
.btn-outline {
border:1px solid var(--gold); color:var(--gold); padding:13px 30px; border-radius:6px;
text-decoration:none; font-size:15px; transition:all .2s; display:inline-block;
}
.btn-outline:hover { background:var(--gold); color:#fff; }
.hero-stats { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.stat-card {
background:var(--bg2); border:1px solid var(--line); border-radius:10px; padding:24px 20px;
box-shadow:0 2px 10px rgba(0,0,0,.03);
}
.stat-card .num { font-family:var(--display); font-size:38px; font-weight:700; color:var(--gold); line-height:1.1; }
.stat-card .num sup { font-size:16px; color:var(--gold-2); }
.stat-card .label { color:var(--ink3); font-size:13px; margin-top:6px; }

/* Timeline */
.timeline-wrap { overflow-x:auto; scroll-snap-type:x mandatory; padding-bottom:16px; margin-bottom:36px; scrollbar-width:thin; }
.timeline-wrap::-webkit-scrollbar { height:5px; }
.timeline-wrap::-webkit-scrollbar-thumb { background:var(--gold); border-radius:3px; }
.timeline { display:flex; gap:16px; min-width:max-content; }
.tl-item {
width:176px; scroll-snap-align:start; background:var(--bg2); border:1px solid var(--line);
border-radius:10px; overflow:hidden; position:relative; transition:transform .25s,border-color .25s,box-shadow .25s; text-decoration:none; color:inherit; display:block;
}
.tl-item:hover { transform:translateY(-6px); border-color:var(--gold); box-shadow:0 10px 20px rgba(0,0,0,.08); }
.tl-time { padding:10px 12px 0; font-size:12px; color:var(--gold); font-weight:700; letter-spacing:.5px; }
.tl-cover { width:100%; aspect-ratio:3/4; position:relative; overflow:hidden; margin-top:6px; }
.tl-cover img { width:100%; height:100%; object-fit:cover; display:block; }
.tl-badge {
position:absolute; top:8px; left:8px; background:var(--red); color:#fff;
font-size:11px; padding:2px 7px; border-radius:3px;
}
.tl-hot { position:absolute; bottom:8px; right:8px; background:rgba(0,0,0,.55); color:#f2e9d3; font-size:11px; padding:2px 7px; border-radius:3px; }
.tl-title { padding:10px 12px 4px; font-size:14px; font-weight:600; color:var(--ink); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tl-meta { padding:0 12px 12px; font-size:12px; color:var(--ink3); }

/* Radio Tabs */
.rank-controls { display:flex; gap:24px; margin-bottom:24px; border-bottom:1px solid var(--line); }
.rank-controls input { display:none; }
.rank-controls label { font-size:16px; color:var(--ink3); padding:8px 0 12px; cursor:pointer; position:relative; }
.rank-controls input:checked + label { color:var(--gold); font-weight:700; }
.rank-controls input:checked + label::after {
content:""; position:absolute; left:0; right:0; bottom:-1px; height:3px; background:var(--gold); border-radius:2px;
}
.rank-panel { display:none; grid-template-columns:repeat(4,1fr); gap:24px; }
#tab-today:checked ~ .rank-panel.p-today,
#tab-week:checked ~ .rank-panel.p-week,
#tab-month:checked ~ .rank-panel.p-month { display:grid; }
.rank-item { display:flex; gap:12px; align-items:center; padding:8px; border-radius:8px; transition:background .2s; }
.rank-item:hover { background:var(--bg2); }
.rank-num { font-family:var(--display); font-size:26px; font-weight:700; color:var(--ink3); width:28px; flex-shrink:0; }
.rank-item:nth-child(-n+4) .rank-num { color:var(--gold); }
.rank-thumb { width:44px; height:58px; flex-shrink:0; border-radius:5px; overflow:hidden; }
.rank-thumb img { width:100%; height:100%; object-fit:cover; }
.rank-info { min-width:0; }
.rank-info h4 { font-size:14px; color:var(--ink); font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.rank-info span { font-size:12px; color:var(--ink3); }
.rank-heat { font-size:12px; color:var(--gold); margin-left:auto; white-space:nowrap; }

/* Specials */
.specials-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.spec-card { background:var(--bg); padding:36px 30px; transition:background .2s; }
.spec-card:hover { background:var(--bg2); }
.spec-kicker { color:var(--gold); font-size:12px; letter-spacing:1px; margin-bottom:12px; font-weight:700; }
.spec-card h3 { font-family:var(--display); font-size:24px; margin-bottom:12px; color:var(--ink); }
.spec-card p { color:var(--ink2); font-size:14px; margin-bottom:22px; }
.spec-meta { display:flex; gap:18px; color:var(--ink3); font-size:12px; border-top:1px dashed var(--line); padding-top:14px; }

/* Library */
.lib-tabs { border:1px solid var(--line); border-radius:12px; overflow:hidden; background:var(--bg2); }
.lib-controls { display:flex; }
.lib-controls input { display:none; }
.lib-controls label {
flex:1; padding:20px 24px; cursor:pointer; border-bottom:3px solid transparent;
transition:all .2s; text-align:left;
}
.lib-controls label strong { display:block; font-size:16px; color:var(--ink2); margin-bottom:2px; }
.lib-controls label span { font-size:12px; color:var(--ink3); }
.lib-controls input:checked + label { border-bottom-color:var(--gold); background:var(--bg); }
.lib-controls input:checked + label strong { color:var(--gold); }
.lib-panel { display:none; padding:28px; }
#lib1:checked ~ .lib-panel.lp1,
#lib2:checked ~ .lib-panel.lp2,
#lib3:checked ~ .lib-panel.lp3 { display:block; }
.lib-panel-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:20px; gap:20px; flex-wrap:wrap; }
.lib-panel-head p { font-size:14px; color:var(--ink2); }
.lib-panel-head .lit-meta { font-size:13px; color:var(--gold); font-weight:700; }
.lib-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.lib-card { position:relative; text-decoration:none; color:inherit; display:block; }
.lib-cover { position:relative; aspect-ratio:3/4; border-radius:8px; overflow:hidden; border:1px solid var(--line); transition:border-color .2s, transform .2s, box-shadow .2s; }
.lib-card:hover .lib-cover { border-color:var(--gold); transform:translateY(-4px); box-shadow:0 8px 18px rgba(0,0,0,.1); }
.lib-cover img { width:100%; height:100%; object-fit:cover; display:block; }
.score-badge {
position:absolute; top:10px; right:10px; width:38px; height:38px; border-radius:50%;
background:var(--gold); color:#fff; display:flex; align-items:center; justify-content:center;
font-size:12px; font-weight:700; z-index:2; border:2px solid var(--bg);
}
.lib-badge {
position:absolute; top:10px; left:10px; font-size:11px; padding:3px 8px; border-radius:3px; z-index:2;
}
.badge-ai { background:var(--blue); color:#233; }
.badge-mo { background:var(--gold-2); color:#fff; }
.badge-new { background:var(--red); color:#fff; }
.badge-orig { background:var(--gold); color:#fff; }
.lib-hot { position:absolute; bottom:8px; right:8px; background:rgba(0,0,0,.55); color:#f2e9d3; font-size:11px; padding:2px 8px; border-radius:3px; z-index:2; }
.lib-card h4 { font-size:15px; margin-top:12px; color:var(--ink); font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.lib-info { font-size:12px; color:var(--ink3); margin-top:4px; }

/* AI Finder */
.ai-wrap { display:grid; grid-template-columns:1fr 1.1fr; gap:44px; align-items:start; }
.ai-left h2 { font-family:var(--display); font-size:34px; margin-bottom:18px; }
.ai-left h2 em { font-style:normal; color:var(--gold); }
.ai-left p { color:var(--ink2); font-size:15px; margin-bottom:14px; }
.ai-input-fake {
border:1px solid var(--line); background:var(--bg2); padding:16px 18px; border-radius:8px;
font-size:14px; color:var(--ink3); margin-bottom:14px; display:flex; align-items:center; gap:10px;
}
.ai-input-fake::before { content:"🔍"; font-size:15px; }
.btn-search-block {
display:block; width:100%; background:var(--gold); color:#fff; text-align:center;
padding:13px; border-radius:6px; font-size:15px; margin-bottom:18px; text-decoration:none;
}
.ai-chips { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:14px; }
.ai-chips span {
font-size:12px; border:1px solid var(--line); border-radius:20px; padding:5px 12px; color:var(--ink2); background:var(--bg);
}
.ai-tip { font-size:12px; color:var(--ink3); }
.ai-result {
background:var(--bg2); border:1px solid var(--line); border-radius:12px; padding:24px;
}
.ai-result-head { display:flex; justify-content:space-between; align-items:center; border-bottom:1px solid var(--line); padding-bottom:14px; margin-bottom:16px; }
.ai-result-head h3 { font-family:var(--display); font-size:20px; }
.ai-result-head span { font-size:12px; color:var(--gold); font-weight:700; }
.ai-result ol { list-style:none; display:flex; flex-direction:column; gap:14px; }
.ai-result li { display:flex; gap:14px; align-items:center; }
.ai-result li .idx { font-family:var(--display); font-size:22px; color:var(--gold); width:22px; flex-shrink:0; }
.ai-thumb { width:46px; height:62px; border-radius:5px; overflow:hidden; flex-shrink:0; }
.ai-thumb img { width:100%; height:100%; object-fit:cover; }
.ai-info h4 { font-size:14px; color:var(--ink); }
.ai-info p { font-size:12px; color:var(--ink3); margin:2px 0; }
.ai-match { font-size:12px; color:var(--gold); margin-left:auto; text-align:right; white-space:nowrap; }
.ai-sort { display:flex; gap:10px; margin-top:20px; border-top:1px dashed var(--line); padding-top:14px; flex-wrap:wrap; }
.ai-sort span { font-size:12px; border:1px solid var(--line); border-radius:20px; padding:4px 10px; color:var(--ink3); }
.ai-sort span:first-child { border-color:var(--gold); color:var(--gold); }

/* Download */
.dl-wrap { display:grid; grid-template-columns:1.25fr 1fr; gap:50px; align-items:center; }
.dl-left h2 { font-family:var(--display); font-size:40px; margin-bottom:20px; }
.dl-left h2 em { font-style:normal; color:var(--gold); }
.dl-left p { color:var(--ink2); font-size:15px; margin-bottom:14px; }
.dl-steps { list-style:none; counter-reset:step; margin-top:24px; display:flex; flex-direction:column; gap:18px; }
.dl-steps li { counter-increment:step; display:flex; gap:14px; align-items:flex-start; }
.dl-steps li::before {
content:counter(step); width:30px; height:30px; border-radius:50%; background:var(--gold);
color:#fff; display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:700; flex-shrink:0;
}
.dl-steps li strong { display:block; font-size:15px; color:var(--ink); margin-bottom:2px; }
.dl-steps li span { font-size:13px; color:var(--ink3); }
.dl-right {
background:repeating-linear-gradient(45deg,var(--bg2) 0 14px,var(--bg3) 14px 28px);
border:1px solid var(--line); border-radius:14px; padding:34px 26px; text-align:center;
}
.qr-box {
width:154px; height:154px; margin:0 auto 18px; background:#fff; border-radius:10px;
display:flex; align-items:center; justify-content:center; box-shadow:0 4px 12px rgba(0,0,0,.06);
}
.qr-box svg { width:120px; height:120px; }
.dl-right h3 { font-size:17px; margin-bottom:8px; color:var(--ink); }
.dl-right p { font-size:13px; color:var(--ink3); margin-bottom:20px; }
.dl-btns { display:flex; flex-direction:column; gap:10px; }
.dl-btns a {
display:block; padding:11px; border-radius:6px; font-size:14px; text-decoration:none;
background:var(--bg); border:1px solid var(--line); color:var(--ink2); transition:all .2s;
}
.dl-btns a:hover { border-color:var(--gold); color:var(--gold); }
.dl-btns a.main-btn { background:var(--gold); color:#fff; border-color:var(--gold); }
.dl-btns a.main-btn:hover { background:var(--gold-2); }

/* Reviews */
.reviews-wrap { display:grid; grid-template-columns:1fr 1.45fr; gap:44px; align-items:start; }
.rev-summary { background:var(--bg2); border:1px solid var(--line); border-radius:12px; padding:30px; }
.rev-score { font-family:var(--display); font-size:56px; color:var(--gold); line-height:1; font-weight:700; }
.rev-stars { color:var(--gold); font-size:20px; margin:8px 0; letter-spacing:2px; }
.rev-summary p { font-size:13px; color:var(--ink3); margin-bottom:20px; }
.bar-row { display:flex; align-items:center; gap:10px; margin-bottom:9px; font-size:12px; color:var(--ink3); }
.bar-track { flex:1; height:7px; background:var(--bg4); border-radius:4px; overflow:hidden; }
.bar-fill { height:100%; background:var(--gold); width:var(--w); border-radius:4px; }
.rev-cards { display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:24px; }
.rev-card { background:var(--bg); border:1px solid var(--line); border-radius:10px; padding:18px; }
.rev-user { display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.rev-avatar {
width:34px; height:34px; border-radius:50%; background:var(--gold); color:#fff;
display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:700;
}
.rev-user h4 { font-size:14px; color:var(--ink); }
.rev-user span { font-size:11px; color:var(--ink3); }
.rev-stars-sm { color:var(--gold); font-size:13px; margin-bottom:8px; }
.rev-quote { font-family:var(--display); font-size:14px; color:var(--gold-2); font-style:italic; margin-bottom:8px; }
.rev-body { font-size:13px; color:var(--ink2); margin-bottom:10px; }
.rev-footer { font-size:11px; color:var(--ink3); display:flex; gap:12px; flex-wrap:wrap; }
.rev-form { border-top:1px dashed var(--line); padding-top:22px; }
.rev-form h4 { font-size:15px; margin-bottom:14px; }
.rev-form .form-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:12px; }
.rev-form input, .rev-form textarea {
width:100%; border:1px solid var(--line); background:var(--bg2); border-radius:6px;
padding:10px 12px; font-size:13px; font-family:var(--sans); color:var(--ink); outline:none;
}
.rev-form textarea { min-height:80px; resize:vertical; margin-bottom:12px; }
.rev-form button {
background:var(--gold); color:#fff; border:none; padding:10px 26px; border-radius:6px;
font-size:14px; cursor:pointer; font-family:var(--sans);
}

/* FAQ */
.faq-list { border-top:1px solid var(--line); }
.faq-list details { border-bottom:1px solid var(--line); }
.faq-list summary {
list-style:none; cursor:pointer; display:grid; grid-template-columns:auto 1fr auto;
gap:20px; align-items:center; padding:22px 6px; font-size:16px; color:var(--ink); font-weight:600;
}
.faq-list summary::-webkit-details-marker { display:none; }
.faq-num { color:var(--gold); font-family:var(--display); font-size:18px; }
.faq-plus { color:var(--ink3); font-size:22px; transition:transform .25s, color .25s; line-height:1; }
.faq-list details[open] .faq-plus { transform:rotate(45deg); color:var(--gold); }
.faq-answer { padding:0 6px 22px 52px; color:var(--ink2); font-size:14px; }
.faq-answer strong { color:var(--gold-2); }

/* Footer */
.site-footer { margin-top:110px; border-top:1px solid var(--line); background:var(--bg2); position:relative; z-index:3; }
.footer-inner { max-width:1240px; margin:0 auto; padding:60px 30px 30px; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; }
.footer-brand img { width:40px; height:40px; border-radius:8px; object-fit:cover; border:1px solid var(--line); margin-bottom:12px; display:block; }
.footer-brand h3 { font-family:var(--display); font-size:20px; margin-bottom:10px; }
.footer-brand p { color:var(--ink3); font-size:13px; }
.footer-col h4 { font-size:14px; color:var(--ink); margin-bottom:14px; }
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:8px; }
.footer-col a { color:var(--ink3); font-size:13px; text-decoration:none; }
.footer-col a:hover { color:var(--gold); }
.footer-bottom { max-width:1240px; margin:0 auto; padding:18px 30px 30px; border-top:1px solid var(--line); font-size:12px; color:var(--ink3); display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; }
.footer-bottom time { opacity:.8; }
.back-top {
position:fixed; right:24px; bottom:24px; width:46px; height:46px; border-radius:50%;
background:var(--gold); color:#fff; display:flex; align-items:center; justify-content:center;
text-decoration:none; font-size:19px; z-index:120; box-shadow:0 4px 14px rgba(0,0,0,.18);
transition:background .2s;
}
.back-top:hover { background:var(--gold-2); }

/* Responsive */
@media (max-width:1080px) {
.rank-panel { grid-template-columns:repeat(3,1fr); }
}
@media (max-width:900px) {
.hero, .dl-wrap, .reviews-wrap, .ai-wrap { grid-template-columns:1fr; gap:36px; }
.hero h1 { font-size:42px; }
.lib-grid { grid-template-columns:repeat(2,1fr); }
.rev-cards { grid-template-columns:1fr; }
}
@media (max-width:820px) {
.specials-grid { grid-template-columns:1fr 1fr; }
.footer-inner { grid-template-columns:1fr 1fr; }
.main-nav { display:none; }
}
@media (max-width:760px) {
.rank-panel { grid-template-columns:1fr 1fr; }
}
@media (max-width:640px) {
.tl-item { width:150px; }
.faq-answer { padding-left:36px; }
.rev-form .form-row { grid-template-columns:1fr; }
}
@media (max-width:520px) {
.specials-grid, .lib-grid, .footer-inner { grid-template-columns:1fr; }
}
@media (max-width:480px) {
.rank-panel { grid-template-columns:1fr; }
}