:root{
  --brand:#6d5dfc;
  --accent:#22d3ee;
  --bg:#0f1020;
  --text:#e8eaf6;
  --bg-soft:#16172b;
  --bg-card:#1a1b31;
  --line:rgba(232,234,246,.12);
  --line-strong:rgba(232,234,246,.22);
  --muted:rgba(232,234,246,.62);
  --radius:8px;
  --shadow:0 2px 10px rgba(0,0,0,.28);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:14px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,.serif{
  font-family:"Songti SC","SimSun","Noto Serif SC","Source Han Serif SC",serif;
  font-weight:700;
  letter-spacing:.01em;
}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--accent);}
img{display:block;max-width:100%;}
::selection{background:var(--brand);color:#fff;}

/* ============ Navbar ============ */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(15,16,32,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-nav .inner{
  max-width:1320px;margin:0 auto;padding:0 18px;
  display:flex;align-items:center;gap:22px;height:60px;
}
.brand{
  font-family:"Songti SC","Noto Serif SC",serif;
  font-size:21px;font-weight:800;letter-spacing:.04em;
  background:linear-gradient(92deg,var(--accent),var(--brand) 62%,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  white-space:nowrap;
  display:inline-flex;align-items:center;gap:8px;
}
.brand i{color:var(--accent);-webkit-text-fill-color:var(--accent);font-size:17px;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;flex-wrap:wrap;}
.nav-links a{
  font-size:13px;padding:7px 11px;border-radius:6px;color:var(--muted);
  transition:.18s;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(109,93,252,.16);}
.nav-links a.on{color:#fff;background:var(--brand);}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line-strong);
  color:var(--text);border-radius:6px;padding:6px 10px;font-size:15px;
}
@media(max-width:900px){
  .nav-toggle{display:block;margin-left:auto;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:60px;
    background:#131428;border-bottom:1px solid var(--line);
    padding:10px 14px 16px;flex-direction:column;align-items:stretch;gap:2px;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:10px 12px;font-size:14px;}
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:76px 18px 62px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 78% 8%,rgba(109,93,252,.30),transparent 66%),
    radial-gradient(700px 380px at 12% 82%,rgba(34,211,238,.16),transparent 68%),
    linear-gradient(180deg,#12132a,#0f1020);
}
.hero-parallax{
  position:absolute;inset:-60px -10px;
  pointer-events:none;will-change:transform;
  background-image:
    radial-gradient(2px 2px at 12% 22%,rgba(232,234,246,.55),transparent),
    radial-gradient(2px 2px at 68% 14%,rgba(34,211,238,.62),transparent),
    radial-gradient(1.6px 1.6px at 38% 62%,rgba(232,234,246,.40),transparent),
    radial-gradient(2px 2px at 84% 74%,rgba(167,139,250,.55),transparent),
    radial-gradient(1.4px 1.4px at 24% 88%,rgba(232,234,246,.34),transparent),
    radial-gradient(1.6px 1.6px at 92% 38%,rgba(34,211,238,.42),transparent);
  background-size:100% 100%;
  opacity:.9;
}
.hero-in{
  position:relative;max-width:1320px;margin:0 auto;
  display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);border:1px solid rgba(34,211,238,.36);
  border-radius:999px;padding:4px 12px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(32px,4.6vw,56px);line-height:1.16;margin:0 0 16px;
}
.hero h1 .grad{
  background:linear-gradient(96deg,#22d3ee,#6d5dfc 48%,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead-txt{
  color:var(--muted);font-size:15px;max-width:560px;margin:0 0 24px;
}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.btn-brand{
  background:var(--brand);color:#fff;border:none;border-radius:var(--radius);
  padding:11px 22px;font-size:14px;font-weight:600;transition:.2s;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-brand:hover{background:#5b4bf0;color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(109,93,252,.4);}
.btn-ghost{
  background:transparent;color:var(--text);border:1px solid var(--line-strong);
  border-radius:var(--radius);padding:11px 22px;font-size:14px;font-weight:500;transition:.2s;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

/* Hero carousel */
.hero-slider{position:relative;}
.slide-stage{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:0 18px 46px rgba(0,0,0,.5);
  aspect-ratio:16/10;background:#151632;
}
.slide{
  position:absolute;inset:0;opacity:0;transition:opacity .8s ease;
}
.slide.active{opacity:1;}
.slide img{width:100%;height:100%;object-fit:cover;}
.slide-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:44px 16px 14px;
  background:linear-gradient(180deg,transparent,rgba(8,9,20,.94));
}
.slide-cap strong{font-family:"Songti SC","Noto Serif SC",serif;font-size:17px;display:block;}
.slide-cap span{font-size:11.5px;color:var(--muted);}
.dots{display:flex;gap:7px;justify-content:center;margin-top:12px;}
.dots button{
  width:22px;height:4px;border-radius:2px;border:none;padding:0;
  background:rgba(232,234,246,.24);cursor:pointer;transition:.25s;
}
.dots button.on{background:var(--accent);width:34px;}
@media(max-width:900px){
  .hero{padding:48px 16px 44px;}
  .hero-in{grid-template-columns:1fr;gap:30px;}
}

/* ============ Sections ============ */
.sec{max-width:1320px;margin:0 auto;padding:52px 18px 6px;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:22px;
}
.sec-head h2{
  font-size:23px;margin:0;display:flex;align-items:center;gap:10px;
}
.sec-head h2 i{color:var(--brand);font-size:18px;}
.sec-head .sub{font-size:12.5px;color:var(--muted);margin:4px 0 0;}
.sec-head .more{font-size:12.5px;color:var(--accent);white-space:nowrap;}
.sec-head .more:hover{text-decoration:underline;}

/* Category pills */
.cat-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:12px;
}
.cat-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 14px;transition:.22s;display:block;
}
.cat-card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:0 8px 22px rgba(109,93,252,.24);}
.cat-card i{font-size:19px;color:var(--accent);}
.cat-card h3{font-size:15px;margin:9px 0 3px;font-family:"Songti SC",serif;}
.cat-card p{font-size:11.5px;color:var(--muted);margin:0;line-height:1.5;}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:520px){.cat-grid{grid-template-columns:repeat(2,1fr);}}

/* Poster grid */
.poster-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:14px;width:100%;
}
@media(max-width:1100px){.poster-grid{grid-template-columns:repeat(4,1fr);}}
@media(max-width:760px){.poster-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:480px){.poster-grid{grid-template-columns:repeat(2,1fr);gap:10px;}}
.p-card{position:relative;width:100%;}
.p-thumb{
  position:relative;width:100%;aspect-ratio:2/3;border-radius:var(--radius);
  overflow:hidden;background:#1c1d36;border:1px solid var(--line);
}
.p-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.p-card:hover .p-thumb img{transform:scale(1.06);}
.p-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(9,10,22,.55);opacity:0;transition:opacity .28s ease;
}
.p-card:hover .p-play{opacity:1;}
.p-play span{
  width:46px;height:46px;border-radius:50%;
  background:rgba(109,93,252,.94);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;
  box-shadow:0 6px 20px rgba(109,93,252,.5);
}
.p-meta{padding:8px 2px 0;}
.p-meta h4{
  font-size:12.8px;margin:0;font-family:"Inter","PingFang SC",sans-serif;
  font-weight:600;line-height:1.4;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.p-meta small{font-size:11px;color:var(--muted);display:block;margin-top:2px;}
.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px;}
.tag{
  font-size:10.5px;padding:2px 8px;border-radius:999px;
  background:rgba(109,93,252,.16);color:#b9b2ff;border:1px solid rgba(109,93,252,.3);
  line-height:1.6;
}
.tag.cy{background:rgba(34,211,238,.13);color:#8ee9f7;border-color:rgba(34,211,238,.3);}

/* Ranking table */
.rank-table{
  width:100%;border-collapse:collapse;font-size:13px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
}
.rank-table thead th{
  text-align:left;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);font-weight:600;padding:11px 14px;
  background:#15162c;border-bottom:1px solid var(--line);
}
.rank-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle;}
.rank-table tbody tr:last-child td{border-bottom:none;}
.rank-table tbody tr:hover{background:rgba(109,93,252,.09);}
.medal{
  display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:50%;font-size:11.5px;font-weight:800;
  color:#14152a;background:rgba(232,234,246,.2);
}
.medal.g1{background:linear-gradient(140deg,#ffd76a,#f0a52a);}
.medal.g2{background:linear-gradient(140deg,#e6ecf6,#a9b4c6);}
.medal.g3{background:linear-gradient(140deg,#e5a97b,#bd7443);}
.rk-name{font-weight:600;}
.rk-type{font-size:11.5px;color:var(--muted);}
.rk-bar{
  height:5px;border-radius:3px;background:rgba(232,234,246,.11);overflow:hidden;min-width:70px;
}
.rk-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.rk-heat{font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600;}
@media(max-width:760px){
  .hide-sm{display:none;}
}

/* Latest list */
.latest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 22px;}
@media(max-width:820px){.latest-grid{grid-template-columns:1fr;}}
.l-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg-card);transition:.2s;
}
.l-item:hover{border-color:var(--brand);transform:translateX(3px);}
.l-item .dt{
  font-size:11px;color:var(--accent);font-variant-numeric:tabular-nums;
  border:1px solid rgba(34,211,238,.32);border-radius:5px;padding:2px 7px;white-space:nowrap;
}
.l-item .tt{font-size:13.2px;font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.l-item .kk{font-size:11px;color:var(--muted);white-space:nowrap;}

/* Feature table */
.cmp-table{width:100%;border-collapse:collapse;font-size:12.8px;margin-top:6px;}
.cmp-table th,.cmp-table td{border:1px solid var(--line);padding:11px 13px;text-align:left;}
.cmp-table thead th{background:#15162c;font-size:12px;color:var(--muted);letter-spacing:.05em;}
.cmp-table tbody th{font-weight:600;color:var(--text);background:rgba(109,93,252,.08);width:26%;}
.cmp-table .yes{color:var(--accent);}
.cmp-table .no{color:rgba(232,234,246,.36);}

/* Numbered list */
.num-list{list-style:none;padding:0;margin:0;counter-reset:nl;}
.num-list li{
  counter-increment:nl;position:relative;padding:12px 0 12px 42px;
  border-bottom:1px dashed var(--line);font-size:13.2px;color:var(--muted);
}
.num-list li:last-child{border-bottom:none;}
.num-list li::before{
  content:counter(nl,decimal-leading-zero);
  position:absolute;left:0;top:11px;
  width:27px;height:27px;border-radius:6px;
  background:rgba(109,93,252,.18);border:1px solid rgba(109,93,252,.36);
  color:#b9b2ff;font-size:11.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.num-list li b{color:var(--text);font-weight:600;}

/* Topic block */
.topic-wrap{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:14px;
}
@media(max-width:900px){.topic-wrap{grid-template-columns:1fr;}}
.topic-main{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-strong);min-height:250px;background:#161733;
}
.topic-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.topic-main .ov{
  position:absolute;inset:0;padding:20px;
  background:linear-gradient(180deg,rgba(10,11,24,.15),rgba(10,11,24,.92));
  display:flex;flex-direction:column;justify-content:flex-end;
}
.topic-main .ov em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;}
.topic-main .ov h3{font-size:19px;margin:6px 0 6px;}
.topic-main .ov p{font-size:12px;color:var(--muted);margin:0;}
.topic-side{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-card);
  padding:18px;display:flex;flex-direction:column;
}
.topic-side h3{font-size:15.5px;margin:0 0 8px;}
.topic-side p{font-size:12.5px;color:var(--muted);margin:0 0 12px;}
.topic-side a{margin-top:auto;font-size:12.5px;color:var(--accent);}

/* FAQ */
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg-card);margin-bottom:10px;overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;color:var(--text);
  padding:14px 16px;font-size:13.5px;font-weight:600;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  font-family:inherit;
}
.faq-q i{color:var(--accent);transition:transform .25s;font-size:12px;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{margin:0;padding:0 16px 14px;font-size:13px;color:var(--muted);}

/* Footer */
.site-foot{
  margin-top:52px;border-top:1px solid var(--line);background:#0c0d1b;
}
.foot-in{max-width:1320px;margin:0 auto;padding:38px 18px 22px;}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px;}
@media(max-width:820px){.foot-cols{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.foot-cols{grid-template-columns:1fr;}}
.foot-cols h5{font-size:13px;margin:0 0 12px;color:var(--text);letter-spacing:.06em;}
.foot-cols ul{list-style:none;padding:0;margin:0;}
.foot-cols ul li{margin-bottom:8px;font-size:12.5px;color:var(--muted);}
.foot-about p{font-size:12.5px;color:var(--muted);margin:10px 0 0;max-width:330px;}
.foot-brand{
  font-family:"Songti SC","Noto Serif SC",serif;font-size:20px;font-weight:800;
  background:linear-gradient(92deg,var(--accent),var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-flex;align-items:center;gap:8px;
}
.foot-brand i{color:var(--accent);-webkit-text-fill-color:var(--accent);font-size:16px;}
.friend-links{
  border-top:1px solid var(--line);margin-top:28px;padding-top:18px;
}
.friend-links h5{font-size:12.5px;color:var(--muted);margin:0 0 10px;letter-spacing:.08em;}
.friend-links .fl-box{font-size:12.5px;color:var(--muted);line-height:2;}
.copy{
  border-top:1px solid var(--line);margin-top:20px;padding-top:16px;
  font-size:12px;color:var(--muted);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}

/* misc */
.mini-note{font-size:12px;color:var(--muted);}
.pill-note{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;color:var(--accent);
  border:1px solid rgba(34,211,238,.3);border-radius:999px;padding:3px 10px;
}

/* --- 子页面追加 --- */
.guide-wrap {max-width:1080px;margin:0 auto;padding:0 20px;}
.guide-hero {padding:72px 0 40px;background:
      radial-gradient(900px 340px at 12% -10%,rgba(109,93,252,.28),transparent 60%),
      radial-gradient(700px 320px at 88% 0%,rgba(34,211,238,.16),transparent 62%);
  }
.guide-eyebrow {display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);border:1px solid var(--line-strong);padding:6px 14px;border-radius:999px;background:rgba(34,211,238,.07);}
.guide-hero h1 {font-size:clamp(26px,4.4vw,44px);font-weight:800;line-height:1.24;margin:20px 0 16px;letter-spacing:-.01em;}
.guide-hero h1 em {font-style:normal;background:linear-gradient(90deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.guide-hero p.lead {color:var(--muted);font-size:16px;line-height:1.85;max-width:760px;margin:0;}
.quick-nav {display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.quick-nav a {font-size:13.5px;color:var(--text);text-decoration:none;padding:8px 15px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.02);transition:.2s;}
.quick-nav a:hover {border-color:var(--brand);color:#fff;background:rgba(109,93,252,.16);}
.g-sec {padding:46px 0;border-top:1px solid var(--line);}
.g-sec h2 {font-size:clamp(20px,2.7vw,28px);font-weight:700;margin-bottom:10px;letter-spacing:-.01em;}
.g-sec h2 .num {display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#4b3fd6);color:#fff;font-size:14px;font-weight:700;margin-right:12px;vertical-align:middle;}
.g-sec .sub {color:var(--muted);font-size:14.5px;line-height:1.8;margin-bottom:26px;max-width:820px;}
.step-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;}
.step-card {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 20px 22px;box-shadow:var(--shadow);position:relative;transition:.22s;}
.step-card:hover {border-color:var(--line-strong);transform:translateY(-3px);}
.step-card .sc-ico {width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(109,93,252,.16);color:#a99cff;font-size:16px;margin-bottom:14px;}
.step-card h3 {font-size:16px;font-weight:600;margin:0 0 8px;}
.step-card p {font-size:13.5px;line-height:1.78;color:var(--muted);margin:0;}
.step-card .tag {position:absolute;top:16px;right:16px;font-size:11px;color:var(--accent);border:1px solid rgba(34,211,238,.35);border-radius:999px;padding:2px 9px;}
.tip-list {display:grid;gap:14px;}
.tip {display:flex;gap:14px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;}
.tip i {color:var(--accent);font-size:16px;margin-top:3px;flex:0 0 auto;}
.tip div strong {display:block;font-size:14.5px;margin-bottom:5px;font-weight:600;}
.tip div span {font-size:13.5px;line-height:1.78;color:var(--muted);}
.note-box {border-left:3px solid var(--brand);background:rgba(109,93,252,.09);border-radius:0 var(--radius) var(--radius) 0;padding:16px 20px;font-size:13.5px;line-height:1.82;color:var(--muted);}
.note-box strong {color:var(--text);}
.guide-cta {margin:56px 0 64px;background:linear-gradient(120deg,rgba(109,93,252,.22),rgba(34,211,238,.1));border:1px solid var(--line-strong);border-radius:12px;padding:34px 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;}
.guide-cta h2 {font-size:clamp(18px,2.4vw,23px);margin:0 0 8px;font-weight:700;}
.guide-cta p {margin:0;color:var(--muted);font-size:14px;line-height:1.7;max-width:560px;}
.cta-btns {display:flex;gap:12px;flex-wrap:wrap;}
.btn-brand,.btn-ghost {display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;text-decoration:none;transition:.2s;}
.guide-hero {padding:52px 0 30px;}
.g-sec {padding:36px 0;}
.guide-cta {padding:26px 20px;}

/* --- 子页面追加 --- */
/* 本页专属少量补充，沿用站点变量 */
  .lib-hero {position:relative;overflow:hidden;padding:70px 0 48px;background:
    radial-gradient(900px 420px at 12% -10%, rgba(109,93,252,.35), transparent 60%),
    radial-gradient(700px 360px at 88% 0%, rgba(34,211,238,.22), transparent 62%),
    var(--bg);border-bottom:1px solid var(--line);}
.lib-hero .hero-eyebrow {display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;margin-bottom:18px;}
.lib-hero h1 {font-size:clamp(1.8rem,4vw,3rem);font-weight:800;line-height:1.2;margin:0 0 14px;color:var(--text);}
.lib-hero h1 em {font-style:normal;background:linear-gradient(90deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.lib-hero p {color:var(--muted);max-width:720px;line-height:1.75;margin:0 0 22px;}
.lib-stats {display:flex;flex-wrap:wrap;gap:14px;margin-top:6px;}
.lib-stat {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 18px;box-shadow:var(--shadow);min-width:130px;}
.lib-stat b {display:block;font-size:1.35rem;color:var(--text);font-weight:800;letter-spacing:.02em;}
.lib-stat span {font-size:.78rem;color:var(--muted);letter-spacing:.06em;}
.filter-bar {display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px;}
.filter-chip {display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:999px;border:1px solid var(--line-strong);background:var(--bg-soft);color:var(--muted);font-size:.85rem;font-weight:500;cursor:pointer;transition:.2s;text-decoration:none;}
.filter-chip:hover {color:var(--text);border-color:var(--brand);background:rgba(109,93,252,.16);}
.filter-chip.on {background:linear-gradient(135deg,var(--brand),#5b4de0);color:#fff;border-color:transparent;box-shadow:0 4px 16px rgba(109,93,252,.35);}
.lib-sec-title {display:flex;align-items:center;gap:12px;margin:0 0 6px;font-size:1.5rem;font-weight:800;color:var(--text);}
.lib-sec-title i {color:var(--accent);font-size:1.1rem;}
.lib-sec-desc {color:var(--muted);font-size:.92rem;line-height:1.7;margin:0 0 24px;max-width:820px;}
/* 榜单表格：自己写，不用 Bootstrap .table */
  .rank-table {width:100%;border-collapse:separate;border-spacing:0;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.rank-table tbody td {padding:14px 16px;border-bottom:1px solid var(--line);color:var(--text);font-size:.92rem;vertical-align:middle;}
.rank-no {display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:var(--bg-soft);border:1px solid var(--line-strong);font-weight:700;font-size:.82rem;color:var(--muted);}
.rank-no.top {background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;border-color:transparent;}
.rt-title {font-weight:600;color:var(--text);}
.rt-sub {display:block;font-size:.76rem;color:var(--muted);margin-top:2px;font-weight:400;}
.rt-score {color:var(--accent);font-weight:700;letter-spacing:.02em;}
.tag-pill {display:inline-block;padding:3px 10px;border-radius:999px;font-size:.74rem;background:rgba(34,211,238,.12);color:var(--accent);border:1px solid rgba(34,211,238,.28);white-space:nowrap;}
.lib-note {background:var(--bg-soft);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius);padding:20px 22px;color:var(--muted);font-size:.92rem;line-height:1.8;margin-top:8px;}
.lib-note b {color:var(--text);}
.faq-item h3 {font-size:1rem;font-weight:700;color:var(--text);margin:0 0 8px;display:flex;align-items:center;gap:9px;}
.faq-item h3 i {color:var(--brand);font-size:.9rem;}
.faq-item p {margin:0;color:var(--muted);font-size:.9rem;line-height:1.75;}
.lib-hero {padding:52px 0 36px;}
.rank-table thead {display:none;}
.rank-table, .rank-table tbody, .rank-table tr, .rank-table td {display:block;width:100%;}
.rank-table tbody tr {border-bottom:1px solid var(--line);padding:6px 0;}
.rank-table tbody td {border:none;padding:6px 16px;}
.rank-table tbody td:first-child {padding-top:14px;}
.rank-table tbody td:last-child {padding-bottom:14px;}

/* --- 子页面追加 --- */
.about-hero {padding:72px 0 40px;position:relative;overflow:hidden}
.about-hero::before {content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 20% 0%,rgba(109,93,252,.28),transparent 70%),radial-gradient(500px 260px at 85% 10%,rgba(34,211,238,.16),transparent 70%);pointer-events:none}
.about-hero .inner {position:relative;max-width:1120px;margin:0 auto;padding:0 20px}
.about-hero h1 {font-size:clamp(1.7rem,4vw,2.7rem);line-height:1.25;margin:14px 0 16px;font-weight:800}
.about-hero h1 em {font-style:normal;background:linear-gradient(90deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.about-hero p {color:var(--muted);max-width:760px;line-height:1.9;font-size:.98rem}
.stat-row {display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.stat-box {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px;box-shadow:var(--shadow)}
.stat-box b {display:block;font-size:1.5rem;color:var(--text);letter-spacing:.5px}
.stat-box span {display:block;margin-top:6px;font-size:.8rem;color:var(--muted)}
.about-sec {padding:56px 0}
.about-sec .inner {max-width:1120px;margin:0 auto;padding:0 20px}
.about-sec h2 {font-size:clamp(1.25rem,2.6vw,1.7rem);font-weight:800;margin:0 0 10px}
.about-sec h2 .bar {display:inline-block;width:34px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent));vertical-align:middle;margin-right:12px;transform:translateY(-3px)}
.about-sec .lead {color:var(--muted);line-height:1.95;margin-bottom:26px;max-width:820px;font-size:.95rem}
.info-grid {display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.info-card {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:border-color .2s,transform .2s}
.info-card:hover {border-color:var(--line-strong);transform:translateY(-3px)}
.info-card i {color:var(--accent);font-size:1.15rem;margin-bottom:12px;display:block}
.info-card h3 {font-size:1rem;margin:0 0 8px;font-weight:700;color:var(--text)}
.info-card p {margin:0;color:var(--muted);font-size:.88rem;line-height:1.85}
.timeline {list-style:none;padding:0;margin:0;position:relative}
.timeline::before {content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand),var(--accent),transparent)}
.timeline li {position:relative;padding:0 0 26px 34px}
.timeline li:last-child {padding-bottom:0}
.timeline li::before {content:"";position:absolute;left:3px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--bg);border:2px solid var(--brand);box-shadow:0 0 0 4px rgba(109,93,252,.14)}
.timeline b {display:block;color:var(--text);margin-bottom:4px;font-size:.95rem}
.timeline span {color:var(--muted);font-size:.87rem;line-height:1.8;display:block}
.tag-line {display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.tag-line span {background:var(--bg-soft);border:1px solid var(--line);color:var(--muted);font-size:.8rem;padding:6px 14px;border-radius:999px}
.quote-box {background:linear-gradient(135deg,rgba(109,93,252,.16),rgba(34,211,238,.08));border:1px solid var(--line-strong);border-radius:var(--radius);padding:26px 24px;margin-top:8px}
.quote-box p {margin:0;color:var(--text);line-height:1.95;font-size:.97rem}
.quote-box p + p {margin-top:12px;color:var(--muted);font-size:.9rem}
.cta-about {margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.site-footer {border-top:1px solid var(--line);padding:38px 0 30px;background:var(--bg-soft);margin-top:20px}
.site-footer .inner {max-width:1120px;margin:0 auto;padding:0 20px}
.footer-top {display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}
.footer-top .brand {font-size:1.05rem;color:var(--text);text-decoration:none;font-weight:800;display:inline-flex;align-items:center;gap:8px}
.footer-top .brand i {color:var(--accent)}
.footer-desc {color:var(--muted);font-size:.85rem;line-height:1.8;max-width:420px;margin:10px 0 0}
.footer-links {display:flex;flex-wrap:wrap;gap:14px 22px}
.footer-links a {color:var(--muted);text-decoration:none;font-size:.87rem;transition:color .2s}
.footer-links a:hover {color:var(--accent)}
.footer-bottom {margin-top:26px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.stat-row {grid-template-columns:repeat(2,1fr)}
.info-grid {grid-template-columns:1fr}
.about-hero {padding:52px 0 30px}

/* --- 子页面追加 --- */
/* 本页专属少量补充，仅复用站点变量，不新增配色体系 */
  .doc-wrap {max-width:900px;margin:0 auto}
.doc-card {
    background:var(--bg-card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:28px 26px;
    margin-bottom:22px;
  }
.doc-card h2 {
    font-size:20px;
    font-weight:700;
    margin:0 0 14px;
    color:var(--text);
    display:flex;
    align-items:center;
    gap:10px;
    line-height:1.4;
  }
.doc-card h2 i {color:var(--accent);font-size:17px}
.doc-card h3 {
    font-size:15.5px;
    font-weight:600;
    margin:18px 0 8px;
    color:var(--text);
  }
.doc-card p {
    color:var(--muted);
    font-size:14.5px;
    line-height:1.9;
    margin:0 0 12px;
  }
.doc-card p:last-child {margin-bottom:0}
.doc-card ul {
    margin:0 0 12px;
    padding-left:20px;
    color:var(--muted);
    font-size:14.5px;
    line-height:1.9;
  }
.doc-card li {margin-bottom:6px}
.doc-card strong {color:var(--text);font-weight:600}
.doc-tip {
    border-left:3px solid var(--brand);
    background:rgba(109,93,252,.10);
    border-radius:0 var(--radius) var(--radius) 0;
    padding:14px 18px;
    font-size:14px;
    line-height:1.85;
    color:var(--muted);
    margin:16px 0 0;
  }
.doc-tip b {color:var(--text)}
.doc-meta {
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
  }
.doc-meta span {
    font-size:12.5px;
    color:var(--muted);
    border:1px solid var(--line);
    border-radius:999px;
    padding:5px 12px;
    background:var(--bg-soft);
  }
.doc-meta span i {color:var(--accent);margin-right:5px}
.doc-toc {
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:8px;
  }
.doc-toc a {
    font-size:13px;
    color:var(--text);
    text-decoration:none;
    border:1px solid var(--line-strong);
    border-radius:999px;
    padding:6px 14px;
    background:var(--bg-soft);
    transition:.2s;
  }
.doc-toc a:hover {
    border-color:var(--brand);
    color:var(--accent);
  }
.doc-card {padding:20px 16px}
.doc-card h2 {font-size:17.5px}

/* --- 子页面追加 --- */
/* 本页专属少量样式，沿用站点配色变量 */
  .sitemap-wrap {padding:8px 0 10px}
.map-group {
    background:var(--bg-card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:26px 26px 22px;
    height:100%;
  }
.map-group h3 {
    font-size:1.06rem;
    font-weight:700;
    color:var(--text);
    margin:0 0 6px;
    display:flex;
    align-items:center;
    gap:10px;
  }
.map-group h3 i {color:var(--accent);font-size:.95rem}
.map-group p.tip {
    color:var(--muted);
    font-size:.86rem;
    line-height:1.7;
    margin:0 0 16px;
  }
.map-list {list-style:none;margin:0;padding:0}
.map-list li {
    border-top:1px dashed var(--line);
    padding:11px 0;
    display:flex;
    align-items:baseline;
    gap:10px;
  }
.map-list li:first-child {border-top:none;padding-top:0}
.map-list a {
    color:var(--text);
    text-decoration:none;
    font-weight:600;
    font-size:.95rem;
    transition:color .18s ease;
  }
.map-list a:hover {color:var(--accent)}
.map-list span.d {
    color:var(--muted);
    font-size:.82rem;
    line-height:1.6;
  }
.map-list .badge-on {
    font-size:.68rem;
    color:var(--brand);
    border:1px solid var(--brand);
    border-radius:999px;
    padding:1px 8px;
    font-weight:600;
    letter-spacing:.02em;
  }
.map-note {
    border-left:3px solid var(--brand);
    background:var(--bg-soft);
    border-radius:0 var(--radius) var(--radius) 0;
    padding:18px 20px;
    color:var(--muted);
    font-size:.9rem;
    line-height:1.85;
  }
.map-note strong {color:var(--text)}
.map-anchor-nav {
    display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;
  }
.map-anchor-nav a {
    font-size:.84rem;
    color:var(--text);
    text-decoration:none;
    border:1px solid var(--line-strong);
    background:var(--bg-soft);
    padding:7px 15px;
    border-radius:999px;
    transition:.2s ease;
  }
.map-anchor-nav a:hover {border-color:var(--accent);color:var(--accent)}
.map-anchor-nav a i {margin-right:6px;color:var(--accent);font-size:.78rem}