:root{
  --main:#2563eb;
  --accent:#06b6d4;
  --bg:#f4f8ff;
  --ink:#0f1e3d;
  --line:rgba(15,30,61,.14);
  --line-soft:rgba(15,30,61,.08);
  --card:#ffffff;
  --muted:#5b6b88;
  --radius:10px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:400;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:900;letter-spacing:-.02em;line-height:1.25;color:var(--ink);}
a{text-decoration:none;color:inherit;}
.mono{font-family:'Inter',ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.section-pad{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--main);border:1px solid var(--line);border-radius:999px;padding:5px 14px;background:#fff;
}
.sec-title{font-size:clamp(1.35rem,2.6vw,1.75rem);margin:14px 0 6px;}
.sec-sub{color:var(--muted);font-size:.95rem;max-width:640px;margin:0 0 26px;}
.hr-line{border:0;border-top:1px solid var(--line);margin:0;}

/* ---------- NAV ---------- */
.top-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,248,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap;}
.brand{
  font-weight:900;font-size:1.22rem;letter-spacing:-.02em;color:var(--ink);
  display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
}
.brand i{color:var(--main);font-size:1.05rem;}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-left:auto;}
.nav-links a{
  font-size:.9rem;font-weight:500;color:var(--ink);padding:7px 12px;border-radius:8px;
  border:1px solid transparent;transition:.2s ease;white-space:nowrap;
}
.nav-links a:hover{border-color:var(--line);color:var(--main);background:#fff;}
.nav-toggle{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:8px;width:40px;height:38px;color:var(--ink);font-size:1rem;
}
@media(max-width:900px){
  .nav-links{display:none;width:100%;flex-direction:column;align-items:stretch;gap:2px;padding:6px 0 12px;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:10px 12px;border-bottom:1px solid var(--line-soft);border-radius:0;}
  .nav-toggle{display:block;}
}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 82% -12%, rgba(6,182,212,.16), transparent 62%),
    radial-gradient(760px 380px at 6% 108%, rgba(37,99,235,.14), transparent 64%),
    linear-gradient(180deg,#0b1428 0%,#101d3a 52%,#f4f8ff 100%);
  padding:74px 0 84px;
}
.hero .eyebrow{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);color:#9fd9f5;}
.hero h1{
  color:#fff;font-size:clamp(1.9rem,4.6vw,3.05rem);margin:18px 0 14px;max-width:820px;
}
.hero h1 em{font-style:normal;color:#7dd3fc;}
.hero p.lead-txt{color:#c3d2ec;font-size:1.02rem;max-width:660px;margin-bottom:28px;}
.btn-hero{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 24px;border-radius:9px;font-weight:700;font-size:.94rem;
  border:1px solid var(--main);transition:.22s ease;
}
.btn-fill{background:var(--main);color:#fff;}
.btn-fill:hover{background:#1d4fd0;color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#e6efff;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.hero-stats .num{font-size:1.5rem;font-weight:800;color:#fff;}
.hero-stats .lbl{font-size:.8rem;color:#93a8c9;letter-spacing:.08em;}
.hero-stats .mono{color:#7dd3fc;}

/* ---------- TOP CHART ---------- */
.chart-list{border-top:1px solid var(--line);}
.chart-row{
  display:grid;grid-template-columns:64px 1fr auto;gap:18px;align-items:center;
  padding:18px 6px;border-bottom:1px solid var(--line-soft);transition:.2s ease;
}
.chart-row:hover{background:#fff;transform:translateX(3px);}
.chart-rank{font-size:1.24rem;font-weight:800;color:var(--main);}
.chart-row:nth-child(n+4) .chart-rank{color:var(--muted);}
.chart-name{font-weight:700;font-size:1.02rem;}
.chart-meta{font-size:.83rem;color:var(--muted);font-weight:400;}
.chart-score{font-size:1.02rem;font-weight:700;color:var(--accent);min-width:66px;text-align:right;}
@media(max-width:640px){
  .chart-row{grid-template-columns:44px 1fr;gap:12px;}
  .chart-score{grid-column:2;text-align:left;}
}

/* ---------- HERO ROW POSTERS ---------- */
.rec-row{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
@media(max-width:1080px){.rec-row{grid-template-columns:repeat(3,1fr);}}
@media(max-width:560px){.rec-row{grid-template-columns:repeat(2,1fr);}}

/* ---------- POSTER CARD ---------- */
.poster-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;width:100%;}
@media(max-width:1180px){.poster-grid{grid-template-columns:repeat(4,1fr);}}
@media(max-width:820px){.poster-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:520px){.poster-grid{grid-template-columns:repeat(2,1fr);gap:12px;}}
.p-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .26s ease, box-shadow .26s ease;
  display:flex;flex-direction:column;
}
.p-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(15,30,61,.16);}
.p-thumb{position:relative;width:100%;aspect-ratio:2/3;overflow:hidden;background:#dbe6f7;}
.p-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.p-card:hover .p-thumb img{transform:scale(1.05);}
.p-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,20,40,0) 40%,rgba(11,20,40,.72) 100%);
  opacity:.9;
}
.p-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);
  width:44px;height:44px;border-radius:50%;
  background:rgba(37,99,235,.92);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:.92rem;opacity:0;transition:.26s ease;
}
.p-card:hover .p-play{opacity:1;transform:translate(-50%,-50%) scale(1);}
.p-badge{
  position:absolute;top:9px;left:9px;z-index:2;
  font-size:.7rem;font-weight:700;letter-spacing:.04em;
  background:rgba(255,255,255,.94);color:var(--main);
  border-radius:5px;padding:2px 7px;
}
.p-txt{padding:10px 11px 13px;}
.p-title{font-size:.9rem;font-weight:700;line-height:1.4;margin:0 0 3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.p-info{font-size:.76rem;color:var(--muted);display:flex;justify-content:space-between;gap:6px;}

/* ---------- FILTER LAYOUT ---------- */
.filter-layout{display:grid;grid-template-columns:212px 1fr;gap:34px;align-items:start;}
@media(max-width:900px){.filter-layout{grid-template-columns:1fr;gap:22px;}}
.side-col{
  position:sticky;top:82px;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px 16px;
}
@media(max-width:900px){.side-col{position:static;}}
.side-col h4{font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;}
.side-col .side-group{border-top:1px solid var(--line-soft);padding:14px 0 4px;}
.side-col .side-group:first-of-type{border-top:0;padding-top:0;}
.side-label{font-size:.76rem;font-weight:700;color:var(--main);margin-bottom:9px;letter-spacing:.06em;}
.side-col a.chip{
  display:inline-block;font-size:.8rem;padding:4px 10px;margin:0 6px 7px 0;
  border:1px solid var(--line);border-radius:999px;color:var(--ink);transition:.18s ease;background:#fff;
}
.side-col a.chip:hover{border-color:var(--main);color:var(--main);}
.side-col a.chip.on{background:var(--main);border-color:var(--main);color:#fff;}

/* ---------- CLASSIC STEP ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
@media(max-width:820px){.steps{grid-template-columns:1fr;}}
.step{padding:26px 24px;border-right:1px solid var(--line);}
.step:last-child{border-right:0;}
@media(max-width:820px){.step{border-right:0;border-bottom:1px solid var(--line);}.step:last-child{border-bottom:0;}}
.step-no{font-size:.78rem;font-weight:800;letter-spacing:.2em;color:var(--accent);}
.step h5{font-size:1rem;margin:8px 0 8px;}
.step p{font-size:.88rem;color:var(--muted);margin:0;}

/* ---------- TRAILER ---------- */
.trailer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
@media(max-width:900px){.trailer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.trailer-grid{grid-template-columns:1fr;}}
.t-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .24s ease,box-shadow .24s ease;}
.t-card:hover{transform:translateY(-5px);box-shadow:0 12px 26px rgba(15,30,61,.14);}
.t-thumb{position:relative;aspect-ratio:16/10;background:#0b1428;overflow:hidden;}
.t-thumb img{width:100%;height:100%;object-fit:cover;display:block;opacity:.86;transition:.35s;}
.t-card:hover .t-thumb img{opacity:1;transform:scale(1.04);}
.t-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.5rem;
}
.t-play span{
  width:52px;height:52px;border-radius:50%;border:1px solid rgba(255,255,255,.6);
  display:flex;align-items:center;justify-content:center;background:rgba(37,99,235,.55);
  backdrop-filter:blur(2px);transition:.24s ease;
}
.t-card:hover .t-play span{background:var(--main);transform:scale(1.07);}
.t-body{padding:14px 15px 16px;}
.t-body h5{font-size:.95rem;margin:0 0 5px;}
.t-body p{font-size:.8rem;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line-soft);padding:16px 2px;}
.faq-item h5{font-size:.98rem;margin:0 0 6px;display:flex;gap:10px;align-items:flex-start;}
.faq-item h5 i{color:var(--accent);font-size:.8rem;margin-top:7px;}
.faq-item p{font-size:.88rem;color:var(--muted);margin:0 0 0 22px;}

/* ---------- FRIEND LINK ---------- */
.friend-box{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0;}
.friend-box h4{font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 12px;}
.friend-box .fl{font-size:.85rem;color:var(--muted);line-height:2;}

/* ---------- FOOTER ---------- */
.site-foot{background:#0b1428;color:#b9c8e2;padding:52px 0 26px;margin-top:0;}
.site-foot h5{color:#fff;font-size:.92rem;margin-bottom:14px;letter-spacing:.04em;}
.site-foot a{color:#b9c8e2;font-size:.86rem;display:block;padding:4px 0;transition:.18s;}
.site-foot a:hover{color:#7dd3fc;}
.foot-brand{font-size:1.16rem;font-weight:900;color:#fff;display:inline-flex;align-items:center;gap:9px;}
.foot-brand i{color:var(--accent);}
.foot-desc{font-size:.85rem;color:#8ea3c4;margin-top:12px;max-width:340px;line-height:1.9;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;font-size:.8rem;color:#7d90b0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;}
.foot-bottom a{display:inline;color:#7d90b0;}
.foot-bottom a:hover{color:#7dd3fc;}

/* ---------- BACK TO TOP ---------- */
#toTop{
  position:fixed;right:22px;bottom:26px;z-index:1050;
  width:44px;height:44px;border-radius:50%;
  background:var(--main);color:#fff;border:0;font-size:.95rem;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:.28s ease;box-shadow:0 6px 18px rgba(37,99,235,.34);
}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0);}
#toTop:hover{background:#1d4fd0;}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* --- 子页面追加 --- */
/* ===== 顶部导航（沿用首页结构） ===== */
  .top-nav {
    position:sticky; top:0; z-index:50;
    background:rgba(244,248,255,.9);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line-soft);
  }
.nav-links a.active { color:var(--main); font-weight:700; }
.nav-links a.active::after {
    content:""; position:absolute; left:0; right:0; bottom:-6px; height:2px;
    background:linear-gradient(90deg,var(--main),var(--accent)); border-radius:2px;
  }
/* ===== 页面通用 ===== */
  .wrap { max-width:1180px; margin:0 auto; padding:0 20px; }
.sec-title em { font-style:normal; color:var(--main); }
/* ===== 页头 Hero ===== */
  .about-hero {
    padding:64px 0 48px;
    background:
      radial-gradient(760px 320px at 12% -10%, rgba(37,99,235,.13), transparent 62%),
      radial-gradient(620px 300px at 92% 0%, rgba(6,182,212,.14), transparent 60%);
    border-bottom:1px solid var(--line-soft);
  }
.about-hero h1 {
    font-size:clamp(28px,4.4vw,44px); font-weight:900; letter-spacing:-.03em;
    line-height:1.18; margin:0 0 18px; max-width:820px;
  }
.about-hero h1 span {
    background:linear-gradient(90deg,var(--main),var(--accent));
    -webkit-background-clip:text; background-clip:text; color:transparent;
  }
.about-hero p { max-width:720px; color:var(--muted); font-size:16.5px; line-height:1.9; margin:0; }
.stat {
    background:var(--card); border:1px solid var(--line-soft); border-radius:var(--radius);
    padding:18px 16px;
  }
.stat b { display:block; font-size:24px; font-weight:900; letter-spacing:-.02em; color:var(--ink); }
.stat span { display:block; font-size:12.5px; color:var(--muted); margin-top:6px; letter-spacing:.02em; }
/* ===== 内容卡片 ===== */
  .info-card {
    background:var(--card); border:1px solid var(--line-soft);
    border-radius:var(--radius); padding:26px 24px; height:100%;
    transition:transform .2s, box-shadow .2s, border-color .2s;
  }
.info-card:hover {
    transform:translateY(-3px);
    box-shadow:0 14px 34px rgba(15,30,61,.08);
    border-color:rgba(37,99,235,.28);
  }
.info-card .ic {
    width:42px; height:42px; border-radius:10px; display:grid; place-items:center;
    background:rgba(37,99,235,.1); color:var(--main); font-size:17px; margin-bottom:14px;
  }
.info-card h3 {
    font-size:17px; font-weight:800; margin:0 0 10px; letter-spacing:-.01em; line-height:1.45;
  }
.info-card p { margin:0; color:var(--muted); font-size:14.5px; line-height:1.85; }
/* ===== 选片标准列表 ===== */
  .chart-list { border:1px solid var(--line-soft); border-radius:var(--radius); overflow:hidden; background:var(--card); }
.chart-row:last-child { border-bottom:0; }
/* ===== 更新节奏时间线 ===== */
  .timeline { position:relative; padding-left:26px; }
.timeline::before {
    content:""; position:absolute; left:7px; top:6px; bottom:6px; width:2px;
    background:linear-gradient(180deg,var(--main),var(--accent));
    border-radius:2px; opacity:.35;
  }
.tl-item { position:relative; padding-bottom:24px; }
.tl-item:last-child { padding-bottom:0; }
.tl-item::before {
    content:""; position:absolute; left:-23px; top:6px; width:12px; height:12px;
    border-radius:50%; background:var(--card); border:3px solid var(--main);
  }
.tl-item h4 { font-size:15.5px; font-weight:800; margin:0 0 6px; }
.tl-item p { margin:0; color:var(--muted); font-size:14.5px; line-height:1.85; }
/* ===== 区块底色 ===== */
  .band { background:var(--card); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }
/* ===== 按钮 ===== */
  .btn-fill, .btn-ghost {
    display:inline-flex; align-items:center; gap:8px;
    padding:11px 22px; border-radius:999px; font-size:14.5px; font-weight:700;
    transition:transform .18s, box-shadow .18s, background .18s, color .18s;
  }
/* ===== FAQ ===== */
  .faq-item {
    background:var(--card); border:1px solid var(--line-soft); border-radius:var(--radius);
    padding:20px 22px; margin-bottom:12px;
  }
.faq-item h3 { font-size:15.5px; font-weight:800; margin:0 0 8px; }
/* ===== 页脚 ===== */
  .site-foot {
    background:var(--card); border-top:1px solid var(--line-soft);
    padding:44px 0 30px; margin-top:0;
  }
.foot-inner {
    max-width:1180px; margin:0 auto; padding:0 20px;
    display:flex; flex-wrap:wrap; gap:32px; justify-content:space-between;
  }
.foot-brand .brand { margin-bottom:12px; }
.foot-brand p { color:var(--muted); font-size:13.5px; line-height:1.85; margin:0; }
.foot-col h5 {
    font-size:12.5px; font-weight:800; letter-spacing:.1em; text-transform:uppercase;
    color:var(--ink); margin:0 0 14px;
  }
.foot-col a {
    display:block; color:var(--muted); font-size:13.5px; margin-bottom:10px;
    transition:color .18s;
  }
.foot-col a:hover { color:var(--main); }
.nav-links a.active::after { display:none; }
.about-hero { padding:44px 0 36px; }

/* --- 子页面追加 --- */
/* 顶部导航 */
  .top-nav {
    position:sticky;top:0;z-index:50;
    background:rgba(244,248,255,.86);
    backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--line-soft);
  }
.brand span {font-size:19px;line-height:1;}
/* 头部 */
  .hero {
    padding:64px 0 42px;
    background:
      radial-gradient(900px 320px at 12% -10%,rgba(6,182,212,.14),transparent 62%),
      radial-gradient(760px 300px at 88% 0%,rgba(37,99,235,.13),transparent 66%);
    border-bottom:1px solid var(--line-soft);
  }
.hero p.lead {
    font-size:17px;color:var(--muted);max-width:720px;margin:0 0 26px;
  }
.hero-stats div {min-width:96px;}
.hero-stats b {
    display:block;font-size:26px;font-weight:800;letter-spacing:-.5px;color:var(--main);
  }
.hero-stats small {font-size:13px;color:var(--muted);}
.btn-hero,.btn-fill,.btn-ghost {
    display:inline-flex;align-items:center;gap:8px;
    padding:11px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
    cursor:pointer;border:1px solid transparent;transition:all .18s ease;
  }
/* 内容区 */
  .sec-title {
    font-size:clamp(21px,2.6vw,27px);font-weight:800;letter-spacing:-.5px;
    margin:0 0 10px;
  }
.g-card {
    background:var(--card);border:1px solid var(--line-soft);
    border-radius:var(--radius);padding:24px 24px 22px;
    height:100%;
    box-shadow:0 1px 2px rgba(15,30,61,.03);
  }
.g-card h3 {
    font-size:17px;font-weight:700;margin:0 0 10px;letter-spacing:-.2px;
    display:flex;align-items:center;gap:9px;
  }
.g-card h3 i {color:var(--main);font-size:15px;}
.g-card p {margin:0;color:var(--muted);font-size:14.5px;line-height:1.78;}
.g-card p + p {margin-top:9px;}
/* 步骤 */
  .step-list {counter-reset:st;display:grid;gap:14px;}
.step::before {
    counter-increment:st;content:counter(st,decimal-leading-zero);
    position:absolute;left:20px;top:20px;
    width:34px;height:34px;border-radius:9px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(37,99,235,.1);color:var(--main);
    font-weight:800;font-size:13px;letter-spacing:-.3px;
  }
.step h3 {font-size:16px;font-weight:700;margin:0 0 6px;}
/* 排行榜样式复用 */
  .chart-list {display:grid;gap:2px;background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;}
.chart-row:nth-child(-n+3) .chart-rank {color:var(--main);}
/* 常见问题 */
  .faq-item {
    background:var(--card);border:1px solid var(--line-soft);
    border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
  }
.faq-item summary {
    list-style:none;cursor:pointer;padding:17px 20px;
    font-weight:600;font-size:15.5px;display:flex;justify-content:space-between;gap:14px;
    align-items:center;
  }
.faq-item summary::-webkit-details-marker {display:none;}
.faq-item summary::after {
    content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
    font-size:12px;color:var(--main);transition:transform .2s ease;flex:0 0 auto;
  }
.faq-item[open] summary::after {transform:rotate(180deg);}
.faq-item .faq-body {
    padding:0 20px 18px;color:var(--muted);font-size:14.5px;line-height:1.8;
    border-top:1px dashed var(--line-soft);padding-top:14px;
  }
.tip-box {
    background:linear-gradient(180deg,rgba(37,99,235,.07),rgba(6,182,212,.05));
    border:1px solid rgba(37,99,235,.16);
    border-radius:var(--radius);padding:22px 24px;
  }
.tip-box h3 {font-size:16.5px;font-weight:700;margin:0 0 8px;display:flex;align-items:center;gap:9px;}
.tip-box h3 i {color:var(--accent);}
.tip-box p {margin:0;color:var(--muted);font-size:14.5px;}
/* 页脚 */
  footer.site-foot {
    border-top:1px solid var(--line-soft);
    background:var(--card);
    padding:40px 0 26px;margin-top:14px;
  }
.foot-grid {display:grid;grid-template-columns:1.4fr 1fr;gap:32px;}
.foot-brand span {font-size:18px;}
.foot-links {display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;}
.foot-links a {color:var(--muted);}
.foot-links a:hover {color:var(--main);}
.foot-title {font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin:0 0 12px;}
.foot-friend {color:var(--muted);font-size:13.5px;line-height:1.9;word-break:break-all;}
.foot-grid {grid-template-columns:1fr;}
.hero-stats b {font-size:22px;}
.step::before {left:14px;top:18px;width:30px;height:30px;}

/* --- 子页面追加 --- */
.page-hero {padding:56px 0 30px;}
.page-hero .eyebrow {margin-bottom:14px;}
.page-hero h1 {font-size:clamp(26px,4vw,42px);font-weight:800;letter-spacing:-.01em;line-height:1.2;color:var(--ink);margin:0 0 14px;}
.page-hero p {color:var(--muted);max-width:760px;font-size:16px;line-height:1.8;margin:0;}
.doc-card {background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;margin-bottom:20px;}
.doc-card h2 {font-size:20px;font-weight:800;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:10px;line-height:1.4;}
.doc-card h2 i {color:var(--main);font-size:18px;}
.doc-card h3 {font-size:15px;font-weight:700;color:var(--ink);margin:18px 0 8px;}
.doc-card p {color:var(--muted);font-size:14.5px;line-height:1.85;margin:0 0 12px;}
.doc-card p:last-child {margin-bottom:0;}
.doc-card ul {margin:0 0 12px;padding-left:20px;}
.doc-card li {color:var(--muted);font-size:14.5px;line-height:1.85;margin-bottom:6px;}
.doc-card a {color:var(--main);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-note {background:rgba(6,182,212,.08);border-left:3px solid var(--accent);border-radius:6px;padding:14px 16px;color:var(--muted);font-size:14px;line-height:1.8;margin:14px 0;}
.doc-tag {display:inline-block;font-size:12px;font-weight:700;color:var(--main);background:rgba(37,99,235,.1);border-radius:999px;padding:3px 12px;margin-bottom:10px;}
.toc {background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:26px;}
.toc h2 {font-size:15px;font-weight:800;color:var(--ink);margin:0 0 12px;}
.toc ol {margin:0;padding-left:20px;}
.toc li {font-size:14px;line-height:2;color:var(--muted);}
.toc a {color:var(--main);text-decoration:none;}
.toc a:hover {color:var(--accent);}
.update-line {font-size:13px;color:var(--muted);margin-top:18px;}
.doc-card {padding:22px 18px;}
.page-hero {padding:38px 0 20px;}

/* --- 子页面追加 --- */
.map-block {
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:26px 26px 20px;
  height:100%;
  transition:border-color .2s ease, transform .2s ease;
}
.map-block:hover {border-color:var(--line);transform:translateY(-2px);}
.map-block .map-head {
  display:flex;align-items:center;gap:10px;
  margin-bottom:6px;
}
.map-block .map-head i {color:var(--main);font-size:1.05rem;}
.map-block h3 {
  font-size:1.02rem;font-weight:700;color:var(--ink);margin:0;
  letter-spacing:-.01em;
}
.map-block .map-desc {
  font-size:.85rem;color:var(--muted);line-height:1.65;margin:6px 0 16px;
}
.map-links {list-style:none;padding:0;margin:0;}
.map-links li {margin-bottom:9px;}
.map-links li:last-child {margin-bottom:0;}
.map-links a {
  display:inline-flex;align-items:center;gap:8px;
  font-size:.9rem;color:var(--ink);text-decoration:none;
  padding:6px 10px;border-radius:8px;
  border:1px solid transparent;
  transition:all .18s ease;
  width:100%;
}
.map-links a i {font-size:.72rem;color:var(--accent);transition:transform .18s ease;}
.map-links a:hover {
  background:rgba(37,99,235,.06);
  border-color:rgba(37,99,235,.18);
  color:var(--main);
}
.map-links a:hover i {transform:translateX(3px);}
.map-links a .tag {
  margin-left:auto;font-size:.7rem;color:var(--muted);
  font-family:'Inter',monospace;letter-spacing:.02em;
}
.map-note {
  background:linear-gradient(135deg,rgba(37,99,235,.06),rgba(6,182,212,.06));
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:22px 24px;
}
.map-note p {color:var(--muted);font-size:.9rem;line-height:1.8;margin:0;}
.map-note strong {color:var(--ink);}
.map-note code {
  font-family:'Inter',monospace;font-size:.82rem;
  background:rgba(15,30,61,.06);padding:2px 7px;border-radius:5px;color:var(--main);
}
.map-block {padding:20px 18px 16px;}