:root{
  --main:#2563eb;
  --accent:#06b6d4;
  --bg:#f4f8ff;
  --ink:#0f1e3d;
  --line:rgba(15,30,61,.14);
  --line-soft:rgba(15,30,61,.08);
  --muted:rgba(15,30,61,.62);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:13.5px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,.serif{
  font-family:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,serif;
  font-weight:700;
  letter-spacing:.01em;
}
a{text-decoration:none;color:inherit}
.wrap{max-width:1240px;margin:0 auto;padding:0 16px}
.line-b{border-bottom:1px solid var(--line)}
.line-t{border-top:1px solid var(--line)}

/* ---------- NAV ---------- */
.topnav{
  background:rgba(244,248,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:900;
}
.brand{
  font-family:"Source Han Serif SC","Noto Serif SC",Georgia,serif;
  font-weight:800;font-size:19px;color:var(--ink);
  letter-spacing:.02em;display:flex;align-items:center;gap:8px;
}
.brand i{color:var(--main);font-size:17px}
.navlinks{display:flex;flex-wrap:wrap;gap:2px;align-items:center}
.navlinks a{
  font-size:13px;padding:6px 11px;border-radius:999px;
  color:var(--muted);border:1px solid transparent;transition:.18s;
}
.navlinks a:hover{color:var(--main);border-color:var(--line)}
.navlinks a.first{color:var(--main);font-weight:600}
.burger{
  border:1px solid var(--line);background:transparent;border-radius:8px;
  width:38px;height:34px;color:var(--ink);
}
@media(max-width:991.98px){
  .navlinks{display:none;padding:10px 0 14px}
  .navlinks.open{display:flex}
  .navlinks a{border:1px solid var(--line-soft)}
}

/* ---------- HERO ---------- */
.hero{padding:26px 0 20px;border-bottom:1px solid var(--line)}
.hero-kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:11.5px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--main);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:#fff;
}
.hero h1{font-size:clamp(22px,3.4vw,34px);line-height:1.32;margin:14px 0 8px}
.hero p.lead-txt{color:var(--muted);font-size:13.5px;max-width:760px;margin-bottom:14px}
.tagcloud{display:flex;flex-wrap:wrap;gap:7px;margin-top:6px}
.tagcloud span{
  font-size:12px;padding:4px 11px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  transition:.18s;cursor:default;
}
.tagcloud span:hover{color:var(--main);border-color:var(--main)}
.tagcloud span.on{background:var(--main);color:#fff;border-color:var(--main)}
.tagcloud span.c2{color:var(--accent);border-color:rgba(6,182,212,.4)}
.hero-stats{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft)}
.hero-stats div b{font-size:18px;font-family:"Source Han Serif SC",Georgia,serif;color:var(--main);display:block;line-height:1.2}
.hero-stats div small{color:var(--muted);font-size:11.5px;letter-spacing:.04em}

/* ---------- SECTION ---------- */
section.block{padding:30px 0;border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.sec-head h2{font-size:18px;margin:0}
.sec-head h2 i{color:var(--accent);font-size:14px;margin-right:7px}
.sec-head .sub{color:var(--muted);font-size:12px;margin-top:2px}
.chip{
  font-size:11.5px;border:1px solid var(--line);border-radius:999px;
  padding:3px 10px;color:var(--muted);background:#fff;transition:.16s;white-space:nowrap;
}
.chip:hover,.chip.active{background:var(--main);color:#fff;border-color:var(--main)}
.chips{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- POSTER GRID ---------- */
.poster-grid{
  display:grid;width:100%;gap:14px;
  grid-template-columns:repeat(6,minmax(0,1fr));
}
@media(max-width:1199.98px){.poster-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:767.98px){.poster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:479.98px){.poster-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.card-p{
  border:1px solid var(--line);border-radius:10px;background:#fff;
  overflow:hidden;width:100%;
}
.thumb{
  position:relative;width:100%;aspect-ratio:2/3;overflow:hidden;background:#e6eefb;
}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease}
.card-p:hover .thumb img{transform:scale(1.07)}
.veil{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,30,61,0) 42%,rgba(15,30,61,.78));
  opacity:0;transition:opacity .3s ease;display:flex;align-items:flex-end;padding:9px;
}
.card-p:hover .veil{opacity:1}
.veil p{color:#fff;font-size:11.5px;line-height:1.45;margin:0}
.badge-top{
  position:absolute;top:7px;left:7px;font-size:10.5px;padding:2px 7px;border-radius:6px;
  background:rgba(37,99,235,.94);color:#fff;letter-spacing:.04em;
}
.badge-top.cy{background:rgba(6,182,212,.94)}
.card-p .meta{padding:8px 9px 10px}
.card-p .meta h3{font-size:12.5px;margin:0 0 3px;font-family:inherit;font-weight:600;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card-p .meta span{font-size:11px;color:var(--muted)}

/* ---------- TABS ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:16px}
.tab-btn{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  font-size:12.5px;padding:5px 14px;color:var(--muted);transition:.18s;cursor:pointer;
}
.tab-btn.active{background:var(--main);color:#fff;border-color:var(--main)}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ---------- RANK ---------- */
.rank-list{border-top:1px solid var(--line)}
.rank-item{
  display:flex;align-items:center;gap:14px;padding:11px 4px;border-bottom:1px solid var(--line-soft);
  transition:.18s;
}
.rank-item:hover{background:rgba(37,99,235,.045);padding-left:10px}
.medal{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:700;border:1px solid var(--line);color:var(--muted);font-family:"Source Han Serif SC",serif;
}
.medal.g1{background:#f5c518;border-color:#e0b000;color:#5c4400}
.medal.g2{background:#cfd6e3;border-color:#b6bfcf;color:#3d4759}
.medal.g3{background:#e2b78c;border-color:#cf9f6f;color:#5a3a17}
.rank-item .ttl{flex:1 1 auto;font-size:13px;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-item .ttl em{font-style:normal;font-weight:400;color:var(--muted);font-size:11.5px;margin-left:8px}
.rank-item .sc{font-size:13px;color:var(--main);font-weight:700;font-family:"Source Han Serif SC",serif}
.bar{height:3px;background:var(--line-soft);border-radius:2px;width:80px;overflow:hidden;flex:0 0 80px}
.bar i{display:block;height:100%;background:var(--accent)}
@media(max-width:575.98px){.bar{display:none}.rank-item .ttl em{display:none}}

/* ---------- TIMELINE ---------- */
.timeline{position:relative;margin:6px 0 0;padding-left:20px}
.timeline::before{content:"";position:absolute;left:5px;top:4px;bottom:4px;width:1px;background:var(--line)}
.tl-item{position:relative;padding:0 0 18px 6px}
.tl-item::before{
  content:"";position:absolute;left:-19px;top:6px;width:9px;height:9px;border-radius:50%;
  background:#fff;border:2px solid var(--main);
}
.tl-item h4{font-size:13.5px;margin:0 0 3px;font-family:inherit;font-weight:700}
.tl-item time{font-size:11px;color:var(--accent);letter-spacing:.06em}
.tl-item p{margin:4px 0 0;color:var(--muted);font-size:12.5px}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:10px;background:#fff;padding:13px 15px;margin-bottom:10px}
.faq-item h4{font-size:13.5px;margin:0 0 6px;font-family:inherit;font-weight:700}
.faq-item h4 i{color:var(--main);margin-right:7px;font-size:12px}
.faq-item p{margin:0;color:var(--muted);font-size:12.5px}

/* ---------- FOOTER ---------- */
footer.site{padding:26px 0 34px;background:#fff;border-top:1px solid var(--line)}
.flink-box{border:1px dashed var(--line);border-radius:10px;padding:14px 16px;margin-bottom:22px}
.flink-box h5{font-size:13px;margin:0 0 9px;font-family:inherit;font-weight:700}
.flink-box h5 i{color:var(--accent);margin-right:6px}
.flink-box .fl{font-size:12px;color:var(--muted);line-height:1.9}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:22px}
@media(max-width:767.98px){.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:479.98px){.fgrid{grid-template-columns:1fr}}
footer.site h6{font-size:12.5px;letter-spacing:.06em;margin-bottom:9px;font-weight:700}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site ul li{margin-bottom:6px}
footer.site ul li a,footer.site .fl a{font-size:12px;color:var(--muted);transition:.16s}
footer.site ul li a:hover,footer.site .fl a:hover{color:var(--main)}
.copy{margin-top:22px;padding-top:14px;border-top:1px solid var(--line-soft);font-size:11.5px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- REVEAL ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.06s}.rv.d2{transition-delay:.12s}.rv.d3{transition-delay:.18s}
.rv.d4{transition-delay:.24s}.rv.d5{transition-delay:.3s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* --- 子页面追加 --- */
.g-hero {padding:56px 0 34px;border-bottom:1px solid var(--line-soft);}
.g-hero h1 {font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.2;margin:12px 0 14px;color:var(--ink);}
.g-hero p.lead {max-width:760px;color:var(--muted);font-size:16px;line-height:1.85;margin:0;}
.g-sec {padding:40px 0;border-bottom:1px solid var(--line-soft);}
.g-sec:last-of-type {border-bottom:0;}
.g-sec h2 {font-size:clamp(20px,2.6vw,26px);font-weight:800;letter-spacing:-.01em;color:var(--ink);margin:0 0 6px;}
.g-sec .sub {color:var(--muted);font-size:14px;margin:0 0 22px;}
.g-sec h3 {font-size:17px;font-weight:700;color:var(--ink);margin:0 0 8px;}
.g-sec p {color:var(--muted);font-size:15px;line-height:1.9;margin:0 0 12px;}
.step-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;}
.step-box {background:#fff;border:1px solid var(--line-soft);border-radius:14px;padding:20px 18px;position:relative;transition:.2s;}
.step-box:hover {border-color:var(--main);transform:translateY(-2px);box-shadow:0 10px 26px rgba(37,99,235,.09);}
.step-num {display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-weight:800;font-size:14px;margin-bottom:12px;}
.tip-list {list-style:none;padding:0;margin:0;}
.tip-list li {position:relative;padding:10px 0 10px 30px;color:var(--muted);font-size:15px;line-height:1.8;border-bottom:1px dashed var(--line-soft);}
.tip-list li:last-child {border-bottom:0;}
.tip-list li::before {content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--accent);position:absolute;left:0;top:11px;font-size:14px;}
.qa-box {background:#fff;border:1px solid var(--line-soft);border-radius:14px;padding:18px 20px;margin-bottom:12px;}
.qa-box .q {font-weight:700;color:var(--ink);font-size:15px;margin:0 0 8px;display:flex;gap:9px;align-items:flex-start;}
.qa-box .q i {color:var(--main);margin-top:3px;}
.qa-box .a {color:var(--muted);font-size:14.5px;line-height:1.85;margin:0;padding-left:24px;}
.cta-strip {margin-top:26px;background:linear-gradient(135deg,rgba(37,99,235,.06),rgba(6,182,212,.08));border:1px solid var(--line-soft);border-radius:16px;padding:24px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}
.cta-strip p {margin:0;color:var(--ink);font-weight:600;font-size:15px;}
.cta-strip .btns {display:flex;gap:10px;flex-wrap:wrap;}
.btn-main {display:inline-block;background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-weight:600;font-size:14px;padding:10px 20px;border-radius:10px;text-decoration:none;transition:.2s;}
.btn-main:hover {opacity:.9;color:#fff;}
.btn-ghost {display:inline-block;border:1px solid var(--line);color:var(--ink);font-weight:600;font-size:14px;padding:10px 20px;border-radius:10px;text-decoration:none;transition:.2s;background:#fff;}
.btn-ghost:hover {border-color:var(--main);color:var(--main);}
.g-hero {padding:38px 0 24px;}
.g-sec {padding:30px 0;}

/* --- 子页面追加 --- */
.page-hero {padding:54px 0 26px;border-bottom:1px solid var(--line);}
.page-hero h1 {font-size:clamp(24px,3.4vw,38px);font-weight:800;letter-spacing:-.5px;margin:10px 0 12px;}
.page-hero p {color:var(--muted);max-width:760px;line-height:1.85;margin:0;}
.kicker {display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--main);
    background:rgba(37,99,235,.09);border:1px solid rgba(37,99,235,.2);padding:5px 13px;border-radius:999px;}
.sec-block {padding:44px 0 8px;}
.sec-block h2 {font-size:clamp(19px,2.3vw,25px);font-weight:800;margin:0 0 8px;letter-spacing:-.3px;}
.sec-block .sec-desc {color:var(--muted);font-size:14.5px;line-height:1.8;margin:0 0 22px;max-width:720px;}
.rank-note {font-size:12.5px;color:var(--muted);margin-top:6px;}
.rank-score {margin-left:auto;font-weight:800;color:var(--main);font-size:15px;white-space:nowrap;}
.rank-meta {font-size:12.5px;color:var(--muted);margin-top:3px;}
.rank-thumb {width:52px;height:70px;border-radius:8px;object-fit:cover;flex:0 0 auto;border:1px solid var(--line-soft);}
.rule-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:6px;}
.rule-card {background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 18px;}
.rule-card h3 {font-size:15.5px;font-weight:700;margin:0 0 8px;display:flex;align-items:center;gap:8px;}
.rule-card h3 i {color:var(--accent);}
.rule-card p {margin:0;font-size:13.6px;line-height:1.8;color:var(--muted);}
.foot-links {display:flex;flex-wrap:wrap;gap:10px 20px;margin:14px 0 0;padding:0;list-style:none;}
.foot-links a {color:var(--muted);text-decoration:none;font-size:13.5px;}
.foot-links a:hover {color:var(--main);}
.site-footer {border-top:1px solid var(--line);margin-top:52px;padding:30px 0 42px;color:var(--muted);font-size:13.5px;}
.site-footer .brandline {font-weight:800;color:var(--ink);font-size:16px;margin-bottom:8px;display:inline-flex;align-items:center;gap:7px;}
.rank-thumb {width:44px;height:60px;}
.rank-score {font-size:13.5px;}

/* --- 子页面追加 --- */
.about-hero {padding:56px 0 34px;border-bottom:1px solid var(--line-soft)}
.about-hero h1 {font-size:clamp(26px,3.6vw,42px);font-weight:900;letter-spacing:-.5px;color:var(--ink);line-height:1.25;margin:14px 0 12px}
.about-hero h1 span {color:var(--main)}
.about-hero p {max-width:760px;color:var(--muted);font-size:16px;line-height:1.9;margin:0}
.about-body {padding:44px 0 10px}
.about-sec {padding:30px 0 8px}
.about-sec h2 {font-size:clamp(20px,2.2vw,27px);font-weight:800;color:var(--ink);letter-spacing:-.3px;margin:0 0 8px;display:flex;align-items:center;gap:10px}
.about-sec h2 i {color:var(--accent);font-size:.85em}
.about-sec h3 {font-size:17px;font-weight:700;color:var(--ink);margin:22px 0 6px}
.about-sec p {color:var(--muted);line-height:1.95;font-size:15.5px;margin:0 0 12px}
.about-sec p strong {color:var(--ink);font-weight:600}
.about-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:20px 0 6px}
.about-card {background:#fff;border:1px solid var(--line-soft);border-radius:16px;padding:22px 20px;transition:.25s}
.about-card:hover {border-color:rgba(37,99,235,.35);box-shadow:0 12px 30px -18px rgba(37,99,235,.5);transform:translateY(-3px)}
.about-card .ic {width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-size:18px;margin-bottom:14px}
.about-card h3 {margin:0 0 8px;font-size:16.5px}
.about-card p {font-size:14.5px;margin:0;line-height:1.85}
.about-list {list-style:none;padding:0;margin:16px 0 6px}
.about-list li {position:relative;padding:10px 0 10px 30px;color:var(--muted);font-size:15.5px;line-height:1.8;border-bottom:1px dashed var(--line-soft)}
.about-list li:last-child {border-bottom:0}
.about-list li::before {content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:11px;color:var(--accent);font-size:14px}
.about-list li b {color:var(--ink);font-weight:600}
.about-note {background:linear-gradient(135deg,rgba(37,99,235,.06),rgba(6,182,212,.06));border:1px solid var(--line-soft);border-left:3px solid var(--main);border-radius:12px;padding:18px 20px;margin:22px 0 8px}
.about-note p {margin:0;font-size:14.5px;line-height:1.9}
.about-cta {display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.about-cta a {display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;text-decoration:none;transition:.25s}
.about-cta a.pri {background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;box-shadow:0 12px 26px -14px rgba(37,99,235,.85)}
.about-cta a.sec {background:#fff;color:var(--ink);border:1px solid var(--line)}
.about-cta a.sec:hover {border-color:var(--main);color:var(--main)}
.about-cta a:hover {transform:translateY(-2px)}
.about-stats {display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin:24px 0 4px}
.about-stats div {background:#fff;border:1px solid var(--line-soft);border-radius:14px;padding:18px 14px;text-align:center}
.about-stats b {display:block;font-size:24px;font-weight:900;color:var(--main);letter-spacing:-.5px}
.about-stats span {font-size:13px;color:var(--muted)}
.about-hero {padding:38px 0 26px}
.about-sec {padding:24px 0 6px}
.about-cta a {flex:1 1 100%;justify-content:center}

/* --- 子页面追加 --- */
.doc-wrap {max-width:900px;margin:0 auto;padding:0 20px 72px;}
.doc-card {
    background:#fff;border:1px solid var(--line);
    border-radius:18px;padding:30px 32px;margin-top:26px;
    box-shadow:0 10px 30px rgba(15,30,61,.05);
  }
.doc-card h2 {
    font-size:1.22rem;font-weight:800;color:var(--ink);
    margin:0 0 14px;display:flex;align-items:center;gap:10px;line-height:1.5;
  }
.doc-card h2 i {color:var(--main);font-size:1.02rem;}
.doc-card h3 {
    font-size:1.02rem;font-weight:700;color:var(--ink);margin:22px 0 8px;
  }
.doc-card p {color:var(--muted);line-height:1.95;font-size:.95rem;margin:0 0 12px;}
.doc-card ul {margin:0 0 12px;padding-left:4px;list-style:none;}
.doc-card li {
    color:var(--muted);line-height:1.9;font-size:.95rem;
    padding-left:22px;position:relative;margin-bottom:8px;
  }
.doc-card li::before {
    content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
    position:absolute;left:0;top:2px;color:var(--accent);font-size:.78rem;
  }
.doc-card a {color:var(--main);font-weight:600;text-decoration:none;border-bottom:1px dashed rgba(37,99,235,.4);}
.doc-card a:hover {color:var(--accent);border-bottom-color:var(--accent);}
.doc-card strong {color:var(--ink);font-weight:700;}
.doc-note {
    background:linear-gradient(135deg,rgba(37,99,235,.07),rgba(6,182,212,.09));
    border:1px solid var(--line);border-left:4px solid var(--main);
    border-radius:12px;padding:16px 20px;margin:18px 0;
  }
.doc-note p {margin:0;color:var(--ink);font-weight:500;}
.doc-meta {
    display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:16px;
    font-size:.84rem;color:var(--muted);
  }
.doc-meta span i {color:var(--main);margin-right:6px;}
.doc-toc {
    display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
  }
.doc-toc a {
    display:inline-block;padding:7px 15px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--muted);
    font-size:.85rem;font-weight:600;text-decoration:none;transition:.2s;
  }
.doc-toc a:hover {background:var(--main);color:#fff;border-color:var(--main);}
.doc-card {padding:22px 18px;border-radius:14px;}
.doc-wrap {padding:0 14px 52px;}