:root{
  --brand:#2563eb;
  --accent:#06b6d4;
  --bg:#f4f8ff;
  --ink:#0f1e3d;
  --line:#dfe8f7;
  --muted:#5b6b88;
  --card:#ffffff;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:900;letter-spacing:-.02em;color:var(--ink)}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--accent)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{max-width:1240px;margin:0 auto;padding:0 18px}

/* progress */
#readbar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--accent));z-index:2000;transition:width .08s linear}

/* nav */
.topnav{
  position:sticky;top:0;z-index:1500;
  background:rgba(244,248,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.navinner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:14px}
.brand{
  font-weight:900;font-size:19px;letter-spacing:-.03em;color:var(--ink);
  display:flex;align-items:center;gap:7px;white-space:nowrap;
}
.brand i{color:var(--brand);font-size:17px}
.brand:hover{color:var(--ink)}
.navlinks{display:flex;gap:22px;align-items:center;list-style:none;margin:0;padding:0}
.navlinks a{
  font-size:13.5px;font-weight:600;color:var(--ink);position:relative;padding:4px 0;
}
.navlinks a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .25s;
}
.navlinks a:hover::after{width:100%}
.navlinks a:hover{color:var(--brand)}
.burger{
  display:none;background:none;border:1px solid var(--line);border-radius:8px;
  width:38px;height:34px;color:var(--ink);font-size:15px;
}
.mobilenav{display:none;border-top:1px solid var(--line);padding:8px 0 14px}
.mobilenav a{display:block;padding:9px 2px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line)}
.mobilenav a:last-child{border-bottom:0}
.mobilenav.open{display:block}

/* hero */
.hero{padding:34px 0 26px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:end}
.kicker{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);font-weight:700;display:inline-flex;align-items:center;gap:8px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block}
.hero h1{font-size:clamp(26px,4.4vw,44px);line-height:1.12;margin:12px 0 12px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero p{color:var(--muted);font-size:14px;max-width:52ch;margin:0}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stat{background:var(--card);padding:16px 18px}
.stat .num{font-family:var(--mono);font-size:26px;font-weight:700;letter-spacing:-.04em;color:var(--brand);line-height:1.1}
.stat .num small{font-size:12px;color:var(--muted);font-family:var(--mono);font-weight:400}
.stat .lbl{font-size:11.5px;color:var(--muted);letter-spacing:.04em;margin-top:4px}

/* section base */
section.block{padding:38px 0;border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.sec-head h2{font-size:21px;margin:0;display:flex;align-items:center;gap:9px}
.sec-head h2 i{color:var(--accent);font-size:16px}
.sec-head .note{font-size:12px;color:var(--muted);font-family:var(--mono)}
.sec-head .more{font-size:12.5px;font-weight:600;white-space:nowrap}

/* carousel */
.carousel-shell{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card);position:relative}
.slide{display:none;position:relative;height:clamp(300px,42vw,420px)}
.slide.active{display:block;animation:fadeSlide .5s ease}
@keyframes fadeSlide{from{opacity:.2}to{opacity:1}}
.slide img{width:100%;height:100%;object-fit:cover;display:block}
.slide .mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,30,61,.9) 6%,rgba(15,30,61,.62) 48%,rgba(15,30,61,.12) 100%);
}
.slide .txt{position:absolute;left:0;bottom:0;padding:clamp(18px,3.4vw,38px);max-width:600px;color:#fff}
.tagrow{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:11px}
.tagrow span{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;padding:3px 9px;border-radius:999px;
  border:1px solid rgba(255,255,255,.5);color:#fff;
}
.tagrow span.hot{background:var(--accent);border-color:var(--accent);color:#04222b;font-weight:700}
.slide h3{color:#fff;font-size:clamp(20px,3vw,32px);margin:0 0 8px}
.slide p{color:rgba(255,255,255,.8);font-size:13px;margin:0 0 14px;max-width:46ch}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  border:1px solid rgba(255,255,255,.75);color:#fff;padding:8px 16px;border-radius:999px;transition:.2s;
}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.car-ctrl{position:absolute;right:14px;bottom:16px;display:flex;gap:8px;z-index:5}
.car-ctrl button{
  width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.55);
  background:rgba(15,30,61,.35);color:#fff;font-size:12px;display:grid;place-items:center;
}
.car-ctrl button:hover{background:var(--brand);border-color:var(--brand)}
.dots{position:absolute;left:clamp(18px,3.4vw,38px);bottom:20px;display:flex;gap:6px;z-index:5}
.dots i{width:16px;height:3px;background:rgba(255,255,255,.45);display:block;border-radius:2px;cursor:pointer}
.dots i.on{background:var(--accent);width:26px}

/* poster grid */
.poster-grid{display:grid;gap:14px;width:100%}
.pg-6{grid-template-columns:repeat(6,minmax(0,1fr))}
.pg-5{grid-template-columns:repeat(5,minmax(0,1fr))}
.pg-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.pcard{position:relative;display:block;color:var(--ink)}
.pthumb{
  position:relative;width:100%;aspect-ratio:2/3;border-radius:11px;overflow:hidden;
  border:1px solid var(--line);background:#dbe7fa;
}
.pthumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease}
.pthumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,30,61,0) 42%,rgba(15,30,61,.78) 100%);
  opacity:.9;transition:opacity .3s;
}
.playbtn{
  position:absolute;inset:0;display:grid;place-items:center;z-index:3;
  opacity:0;transition:opacity .28s ease;
}
.playbtn i{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:var(--accent);color:#022027;font-size:15px;
  border:2px solid rgba(255,255,255,.85);
}
.pcard:hover .playbtn{opacity:1}
.pcard:hover .pthumb img{transform:scale(1.06)}
.pcard:hover{color:var(--ink)}
.prank{
  position:absolute;left:8px;top:8px;z-index:4;font-family:var(--mono);font-size:11px;font-weight:700;
  background:rgba(255,255,255,.94);color:var(--brand);padding:1px 7px;border-radius:5px;border:1px solid var(--line);
}
.pmeta{position:absolute;left:9px;right:9px;bottom:8px;z-index:4;color:#fff}
.pmeta .t{font-size:12.5px;font-weight:700;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pmeta .s{font-family:var(--mono);font-size:10.5px;opacity:.85;display:flex;gap:6px}
.pname{font-size:12.5px;font-weight:600;margin-top:7px;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.psub{font-family:var(--mono);font-size:10.5px;color:var(--muted)}

/* horizontal rail */
.railwrap{position:relative}
.railwrap::before,.railwrap::after{
  content:"";position:absolute;top:0;bottom:34px;width:26px;pointer-events:none;z-index:6;
}
.railwrap::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.railwrap::after{right:0;background:linear-gradient(270deg,var(--bg),transparent)}
.rail{
  display:flex;gap:13px;overflow-x:auto;padding:2px 2px 12px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px}
.rail::-webkit-scrollbar-track{background:transparent}
.rail .railcard{flex:0 0 148px;scroll-snap-align:start}

/* tabs */
.tabbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.tabbar button{
  font-size:12.5px;font-weight:700;padding:6px 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--muted);transition:.2s;
}
.tabbar button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.tabbar button:hover{color:var(--brand)}
.tabbar button.on:hover{color:#fff}
.tabpane{display:none}
.tabpane.on{display:block;animation:fadeSlide .35s ease}

/* category matrix */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.catbox{border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--card)}
.catbox h3{font-size:14.5px;margin:0 0 4px;display:flex;align-items:center;gap:8px}
.catbox h3 i{font-size:12px;color:var(--brand)}
.catbox .cdesc{font-size:11.5px;color:var(--muted);margin:0 0 12px}
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.mini .mini-t{font-size:11.5px;font-weight:600;margin-top:5px;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini .pthumb{border-radius:8px}
.mini .playbtn i{width:32px;height:32px;font-size:11px}

/* heat list */
.heat{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card)}
.heatrow{
  display:grid;grid-template-columns:46px 1fr 92px 78px 110px;gap:12px;align-items:center;
  padding:12px 16px;border-bottom:1px solid var(--line);font-size:13px;
}
.heatrow:last-child{border-bottom:0}
.heatrow:hover{background:#eef4ff}
.heatrank{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--muted)}
.heatrow:nth-child(-n+3) .heatrank{color:var(--accent)}
.heatrow .hname{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.heatrow .hname small{display:block;font-weight:400;font-size:11px;color:var(--muted);font-family:var(--mono)}
.bar{height:6px;border-radius:99px;background:#e5edfb;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:99px}
.heatscore{font-family:var(--mono);font-size:12.5px;font-weight:700;text-align:right;color:var(--brand)}
.heattype{font-family:var(--mono);font-size:11px;color:var(--muted);text-align:right}

/* timeline */
.timeline{position:relative;padding-left:20px;border-left:1px solid var(--line);margin-top:6px}
.tlitem{position:relative;padding:0 0 20px 16px}
.tlitem:last-child{padding-bottom:0}
.tlitem::before{
  content:"";position:absolute;left:-25px;top:6px;width:9px;height:9px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
}
.tlitem .tldate{font-family:var(--mono);font-size:11px;color:var(--accent);font-weight:700;letter-spacing:.06em}
.tlitem h4{font-size:13.5px;margin:3px 0 3px}
.tlitem p{font-size:12.5px;color:var(--muted);margin:0}

/* faq */
.faq details{border-bottom:1px solid var(--line);padding:14px 2px}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{
  cursor:pointer;font-weight:700;font-size:14px;list-style:none;display:flex;justify-content:space-between;gap:14px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"\002B";color:var(--brand);font-weight:700}
.faq details[open] summary::after{content:"\2212"}
.faq p{font-size:13px;color:var(--muted);margin:9px 0 0;max-width:78ch}

/* footer */
.friend{border-top:1px solid var(--line);padding:26px 0}
.friend h5{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-family:var(--mono);margin-bottom:10px;font-weight:700}
.friend .flinks{font-size:12.5px;color:var(--muted);line-height:2;word-break:break-all}
footer.site{padding:26px 0 36px;border-top:1px solid var(--line);background:#eef4ff}
.fgrid{display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}
.fcol h6{font-size:12px;font-weight:800;letter-spacing:.06em;margin-bottom:9px;color:var(--ink)}
.fcol a{display:block;font-size:12.5px;color:var(--muted);padding:3px 0}
.fcol a:hover{color:var(--brand)}
.copy{font-size:12px;color:var(--muted);margin-top:20px;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.copy .mono{font-size:11.5px}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* responsive */
@media(max-width:1080px){
  .pg-6{grid-template-columns:repeat(4,minmax(0,1fr))}
  .pg-5{grid-template-columns:repeat(4,minmax(0,1fr))}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr}
}
@media(max-width:860px){
  .navlinks{display:none}
  .burger{display:block}
  .pg-6,.pg-5,.pg-4{grid-template-columns:repeat(3,minmax(0,1fr))}
  .heatrow{grid-template-columns:36px 1fr 74px;gap:10px}
  .heatrow .bar,.heattype{display:none}
}
@media(max-width:600px){
  body{font-size:13.5px}
  .wrap{padding:0 14px}
  .pg-6,.pg-5,.pg-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .matrix{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat .num{font-size:21px}
  section.block{padding:28px 0}
  .rail .railcard{flex:0 0 126px}
  .heatrow{grid-template-columns:30px 1fr 62px;font-size:12.5px;padding:11px 12px}
  .slide .txt{padding:16px}
  .dots{bottom:16px}
  .car-ctrl{bottom:12px;right:10px}
}

/* --- 子页面追加 --- */
.guide-hero {padding:48px 0 8px;}
.guide-hero h1 {font-size:clamp(26px,4vw,42px);font-weight:800;letter-spacing:-.5px;line-height:1.25;margin:10px 0 14px;color:var(--ink);}
.guide-hero p.lead {color:var(--muted);font-size:16px;line-height:1.8;max-width:760px;}
.gsec {padding:34px 0;border-top:1px solid var(--line);}
.gsec h2 {font-size:clamp(20px,2.6vw,26px);font-weight:800;color:var(--ink);margin-bottom:8px;letter-spacing:-.3px;}
.gsec .sdesc {color:var(--muted);font-size:14.5px;line-height:1.8;margin-bottom:22px;max-width:780px;}
.stepgrid {display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;}
.stepcard {background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 20px 18px;box-shadow:0 2px 10px rgba(37,99,235,.05);transition:transform .18s ease,box-shadow .18s ease;}
.stepcard:hover {transform:translateY(-3px);box-shadow:0 10px 24px rgba(37,99,235,.12);}
.stepcard .num {display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800;font-size:15px;margin-bottom:12px;}
.stepcard h3 {font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.stepcard p {font-size:14px;line-height:1.75;color:var(--muted);margin:0;}
.tipbox {background:linear-gradient(135deg,rgba(37,99,235,.07),rgba(6,182,212,.08));border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:16px 18px;margin-top:20px;}
.tipbox p {margin:0;font-size:14px;color:var(--ink);line-height:1.8;}
.tipbox .mono {color:var(--brand);font-weight:600;}
.qa-item {background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:12px;}
.qa-item h3 {font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:8px;display:flex;gap:8px;align-items:flex-start;}
.qa-item h3 i {color:var(--accent);margin-top:3px;font-size:14px;}
.qa-item p {font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.catrow {display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;}
.catpill {background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 16px;text-align:center;}
.catpill i {font-size:22px;color:var(--brand);margin-bottom:10px;display:block;}
.catpill b {display:block;color:var(--ink);font-size:15px;margin-bottom:6px;}
.catpill span {color:var(--muted);font-size:13px;line-height:1.6;}
.cta-strip {background:linear-gradient(135deg,var(--brand),var(--accent));border-radius:16px;padding:28px 26px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin:34px 0 10px;}
.cta-strip h2 {color:#fff;font-size:clamp(18px,2.4vw,22px);font-weight:800;margin:0;}
.cta-strip p {color:rgba(255,255,255,.9);font-size:14px;margin:4px 0 0;}
.cta-strip a.btn-ghost {background:#fff;color:var(--brand);border:0;font-weight:700;padding:10px 22px;border-radius:10px;text-decoration:none;white-space:nowrap;}
.cta-strip a.btn-ghost:hover {opacity:.92;}
.cta-strip {flex-direction:column;align-items:flex-start;}

/* --- 子页面追加 --- */
.about-hero {padding:64px 0 40px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#ffffff 0%,var(--bg) 100%);}
.about-hero h1 {font-size:clamp(26px,4.2vw,44px);font-weight:900;line-height:1.2;letter-spacing:-.02em;margin:14px 0 18px;}
.about-hero h1 em {font-style:normal;color:var(--brand);}
.about-hero p.lead {max-width:760px;color:var(--muted);font-size:17px;line-height:1.85;margin:0;}
.about-block {padding:56px 0;}
.about-block + .about-block {border-top:1px solid var(--line);}
.about-block h2 {font-size:clamp(21px,3vw,30px);font-weight:800;letter-spacing:-.01em;margin:0 0 8px;line-height:1.35;}
.about-block h2 .tagdot {display:inline-block;width:10px;height:10px;border-radius:3px;background:var(--accent);margin-right:10px;vertical-align:middle;transform:translateY(-2px);}
.about-block .sub {color:var(--muted);font-size:15px;line-height:1.8;margin:0 0 28px;max-width:720px;}
.about-block p {color:var(--ink);font-size:15.5px;line-height:1.95;margin:0 0 16px;}
.about-block p.dim {color:var(--muted);}
.feat {background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px 22px;height:100%;box-shadow:0 6px 22px rgba(15,30,61,.04);transition:transform .2s ease,box-shadow .2s ease;}
.feat:hover {transform:translateY(-3px);box-shadow:0 14px 32px rgba(37,99,235,.10);}
.feat .ico {width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(37,99,235,.10);color:var(--brand);font-size:18px;margin-bottom:16px;}
.feat h3 {font-size:16.5px;font-weight:700;margin:0 0 10px;line-height:1.5;}
.feat p {font-size:14px;line-height:1.85;color:var(--muted);margin:0;}
.librow {display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px dashed var(--line);}
.librow:last-child {border-bottom:0;}
.librow .num {flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;font-family:var(--mono);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.librow h3 {font-size:15.5px;font-weight:700;margin:0 0 6px;}
.librow p {font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.rulecard {background:linear-gradient(160deg,#0f1e3d 0%,#17376b 100%);border-radius:18px;padding:32px 28px;color:#e8efff;}
.rulecard h2 {color:#fff;font-size:clamp(19px,2.6vw,25px);font-weight:800;margin:0 0 18px;line-height:1.4;}
.rulecard ul {list-style:none;padding:0;margin:0;}
.rulecard li {position:relative;padding-left:26px;font-size:14.5px;line-height:1.85;margin-bottom:14px;color:#c9d8f5;}
.rulecard li:last-child {margin-bottom:0;}
.rulecard li i {position:absolute;left:0;top:6px;color:var(--accent);font-size:12px;}
.statline {display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.statline span {font-family:var(--mono);font-size:12.5px;color:var(--brand);background:rgba(37,99,235,.08);border:1px solid rgba(37,99,235,.18);padding:7px 13px;border-radius:999px;}
.cta-bar {margin-top:8px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px 26px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;box-shadow:0 6px 22px rgba(15,30,61,.04);}
.cta-bar h3 {font-size:17px;font-weight:800;margin:0 0 6px;}
.cta-bar p {font-size:14px;color:var(--muted);margin:0;line-height:1.7;}
.cta-links {display:flex;flex-wrap:wrap;gap:10px;}
.cta-links a {display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;padding:11px 18px;border-radius:999px;text-decoration:none;border:1px solid var(--line);color:var(--ink);background:#fff;transition:all .18s ease;}
.cta-links a:hover {border-color:var(--brand);color:var(--brand);}
.cta-links a.primary {background:var(--brand);border-color:var(--brand);color:#fff;}
.cta-links a.primary:hover {background:#1d4fd0;color:#fff;}
.about-hero {padding:44px 0 30px;}
.about-block {padding:40px 0;}
.rulecard {padding:26px 20px;}
.cta-bar {padding:22px 18px;}

/* --- 子页面追加 --- */
/* 本页专属少量样式，沿用站点配色变量 */
  .doc-wrap { max-width: 900px; margin: 0 auto; }
.doc-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px 26px;
    box-shadow: 0 6px 22px rgba(37,99,235,.06);
    margin-bottom: 22px;
  }
.doc-card h2 {
    font-size: 1.28rem;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.4;
  }
.doc-card h2 i { color: var(--brand); font-size: 1.05rem; }
.doc-card h3 {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--ink);
    margin: 18px 0 8px;
  }
.doc-card p {
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.85;
    margin-bottom: 12px;
  }
.doc-card ul { margin: 0 0 12px; padding-left: 1.2rem; }
.doc-card li {
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.85;
    margin-bottom: 6px;
  }
.doc-card li strong { color: var(--ink); font-weight: 600; }
.doc-note {
    background: rgba(6,182,212,.08);
    border-left: 4px solid var(--accent);
    border-radius: 10px;
    padding: 14px 16px;
    color: var(--ink);
    font-size: .92rem;
    line-height: 1.8;
    margin-bottom: 22px;
  }
.doc-note i { color: var(--accent); margin-right: 6px; }
.doc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    font-size: .82rem;
    color: var(--muted);
    margin-bottom: 8px;
  }
.doc-meta span { display: inline-flex; align-items: center; gap: 6px; }
.doc-meta i { color: var(--brand); }
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-list li { margin-bottom: 4px; }
.toc-list a {
    color: var(--brand);
    text-decoration: none;
    font-size: .93rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    transition: color .2s;
  }
.toc-list a:hover { color: var(--accent); text-decoration: underline; }
.toc-list a i { font-size: .7rem; color: var(--accent); }
.doc-card { padding: 20px 16px; border-radius: 12px; }
.doc-card h2 { font-size: 1.12rem; }