:root{
    --primary:#2563eb;
    --accent:#06b6d4;
    --bg:#f4f8ff;
    --text:#0f1e3d;
    --ink:#0f1e3d;
    --line:#0f1e3d;
    --white:#ffffff;
    --soft:#dbe6ff;
  }
  *{box-sizing:border-box;border-radius:0 !important;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:"Inter","Source Han Sans SC","Noto Sans SC","思源黑体",system-ui,-apple-system,sans-serif;
    font-weight:400;
    line-height:1.7;
    overflow-x:hidden;
  }
  h1,h2,h3,h4,.serif-title{
    font-family:"Source Han Serif SC","Noto Serif SC","思源宋体",Georgia,serif;
    font-weight:900;
    letter-spacing:0.01em;
    color:var(--text);
  }
  a{text-decoration:none;color:inherit;}
  a:hover{color:var(--primary);}

  /* ---------- NAV ---------- */
  .site-nav{
    position:fixed;
    top:0;left:0;right:0;
    z-index:1050;
    background:rgba(244,248,255,0.0);
    border-bottom:3px solid transparent;
    transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
  }
  .site-nav.is-stuck{
    background:rgba(244,248,255,0.96);
    border-bottom:3px solid var(--ink);
    box-shadow:0 6px 0 rgba(15,30,61,0.12);
  }
  .nav-inner{
    max-width:1320px;
    margin:0 auto;
    padding:14px 20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
  }
  .brand{
    font-family:"Source Han Serif SC","Noto Serif SC",Georgia,serif;
    font-weight:900;
    font-size:1.35rem;
    color:var(--text);
    display:flex;
    align-items:center;
    gap:8px;
    white-space:nowrap;
  }
  .brand i{color:var(--primary);}
  .nav-links{
    display:flex;
    align-items:center;
    gap:4px;
    flex-wrap:wrap;
  }
  .nav-links a{
    padding:8px 13px;
    font-size:.94rem;
    font-weight:600;
    color:var(--text);
    border:2px solid transparent;
    transition:all .2s ease;
  }
  .nav-links a:hover{
    background:var(--primary);
    color:#fff;
    border-color:var(--ink);
    box-shadow:3px 3px 0 var(--ink);
  }
  .nav-toggle{
    display:none;
    background:var(--white);
    border:3px solid var(--ink);
    box-shadow:4px 4px 0 var(--ink);
    padding:6px 12px;
    font-size:1.1rem;
    color:var(--text);
    cursor:pointer;
  }
  @media (max-width:900px){
    .nav-toggle{display:block;}
    .nav-links{
      display:none;
      position:absolute;
      top:100%;left:0;right:0;
      flex-direction:column;
      align-items:stretch;
      background:var(--white);
      border:3px solid var(--ink);
      box-shadow:6px 6px 0 var(--ink);
      padding:8px;
      gap:6px;
    }
    .nav-links.open{display:flex;}
    .nav-links a{border:2px solid var(--soft);}
  }

  /* ---------- HERO ---------- */
  .hero{
    position:relative;
    margin-top:76px;
    min-height:520px;
    display:flex;
    align-items:flex-end;
    border-bottom:5px solid var(--ink);
    overflow:hidden;
  }
  .hero-bg{
    position:absolute;inset:0;
    background:
      linear-gradient(180deg, rgba(15,30,61,0.55) 0%, rgba(15,30,61,0.78) 60%, rgba(15,30,61,0.92) 100%),
      linear-gradient(120deg,#1b3a8a 0%,#0d2b6b 45%,#0a1b40 100%);
  }
  .hero-bg::after{
    content:"";
    position:absolute;inset:0;
    background-image:
      repeating-linear-gradient(90deg,rgba(255,255,255,0.05) 0 2px,transparent 2px 42px),
      repeating-linear-gradient(0deg,rgba(255,255,255,0.05) 0 2px,transparent 2px 42px);
  }
  .hero-content{
    position:relative;
    z-index:2;
    max-width:1320px;
    margin:0 auto;
    width:100%;
    padding:70px 20px 54px;
    color:#fff;
  }
  .hero-tag{
    display:inline-block;
    background:var(--accent);
    color:#04202a;
    font-weight:800;
    font-size:.8rem;
    letter-spacing:.16em;
    padding:6px 14px;
    border:3px solid #fff;
    margin-bottom:22px;
  }
  .hero h1{
    color:#fff;
    font-size:clamp(2.2rem,5.6vw,4rem);
    line-height:1.14;
    margin:0 0 18px;
    max-width:15em;
    text-shadow:4px 4px 0 rgba(0,0,0,0.35);
  }
  .hero p{
    color:rgba(255,255,255,0.86);
    font-size:1.05rem;
    max-width:640px;
    margin:0 0 28px;
  }
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
  .btn-hard{
    display:inline-flex;
    align-items:center;
    gap:9px;
    padding:13px 26px;
    font-weight:800;
    font-size:1rem;
    border:3px solid #fff;
    background:var(--primary);
    color:#fff;
    box-shadow:6px 6px 0 rgba(0,0,0,0.45);
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .btn-hard:hover{
    transform:translate(-3px,-3px);
    box-shadow:9px 9px 0 rgba(0,0,0,0.5);
    background:var(--accent);
    color:#04202a;
  }
  .btn-hard.ghost{
    background:transparent;
    color:#fff;
  }
  .btn-hard.ghost:hover{background:#fff;color:var(--ink);}

  /* ---------- LAYOUT ---------- */
  .wrap{max-width:1320px;margin:0 auto;padding:0 20px;}
  section{padding:64px 0;}
  .sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    border-bottom:4px solid var(--ink);
    padding-bottom:14px;
    margin-bottom:34px;
    flex-wrap:wrap;
  }
  .sec-head h2{
    font-size:clamp(1.7rem,3.6vw,2.6rem);
    margin:0;
    line-height:1.2;
  }
  .sec-head h2 .idx{
    color:var(--primary);
    font-size:1.2rem;
    display:block;
    letter-spacing:.28em;
    font-family:"Inter",sans-serif;
    font-weight:800;
    margin-bottom:6px;
  }
  .sec-head .sub{
    font-size:.95rem;
    color:#3c4f78;
    max-width:46ch;
    margin:0;
  }

  /* ---------- TOP CHART ---------- */
  .chart-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:0;
    border:4px solid var(--ink);
    background:var(--white);
    box-shadow:10px 10px 0 var(--ink);
  }
  .chart-item{
    display:flex;
    gap:16px;
    padding:18px;
    border-bottom:3px solid var(--soft);
    align-items:center;
    transition:background .2s ease,transform .2s ease;
  }
  .chart-item:nth-child(odd){border-right:3px solid var(--soft);}
  .chart-item:hover{background:#eaf1ff;transform:translateX(4px);}
  .chart-rank{
    font-family:"Source Han Serif SC",serif;
    font-weight:900;
    font-size:2.1rem;
    color:var(--primary);
    min-width:56px;
    line-height:1;
  }
  .chart-item:nth-child(1) .chart-rank,
  .chart-item:nth-child(2) .chart-rank,
  .chart-item:nth-child(3) .chart-rank{color:#e11d48;}
  .chart-meta{flex:1;min-width:0;}
  .chart-meta h3{
    font-size:1.08rem;
    margin:0 0 4px;
    font-weight:800;
  }
  .chart-meta p{
    margin:0;
    font-size:.86rem;
    color:#4b5f88;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
  .chip{
    display:inline-block;
    font-size:.72rem;
    font-weight:800;
    padding:3px 9px;
    border:2px solid var(--ink);
    background:var(--accent);
    color:#04202a;
    white-space:nowrap;
  }
  .chip.alt{background:var(--soft);color:var(--ink);}

  /* ---------- POSTER GRID ---------- */
  .poster-grid{
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:22px;
    width:100%;
  }
  .poster-grid.five{grid-template-columns:repeat(6,1fr);}
  @media (max-width:1200px){
    .poster-grid,.poster-grid.five{grid-template-columns:repeat(4,1fr);}
  }
  @media (max-width:760px){
    .poster-grid,.poster-grid.five{grid-template-columns:repeat(3,1fr);gap:16px;}
  }
  @media (max-width:520px){
    .poster-grid,.poster-grid.five{grid-template-columns:repeat(2,1fr);gap:13px;}
  }

  .card-poster{
    background:var(--white);
    border:3px solid var(--ink);
    box-shadow:6px 6px 0 var(--ink);
    position:relative;
    overflow:hidden;
    transition:transform .25s ease,box-shadow .25s ease;
  }
  .card-poster:hover{
    transform:translate(-5px,-6px) scale(1.03);
    box-shadow:11px 12px 0 var(--primary);
    z-index:5;
  }
  .card-poster .thumb{
    position:relative;
    width:100%;
    aspect-ratio:2/3;
    overflow:hidden;
    background:#1a2c55;
  }
  .card-poster .thumb img{
    width:100%;height:100%;
    object-fit:cover;
    display:block;
    transition:transform .4s ease,filter .3s ease;
  }
  .card-poster:hover .thumb img{
    transform:scale(1.08);
    filter:brightness(0.62);
  }
  .card-poster .badge-q{
    position:absolute;
    top:8px;left:8px;
    font-family:"Inter",sans-serif;
    font-size:.7rem;
    font-weight:900;
    letter-spacing:.06em;
    padding:3px 8px;
    background:var(--accent);
    color:#04202a;
    border:2px solid var(--ink);
  }
  .card-poster .badge-q.k4{background:#e11d48;color:#fff;}
  .card-poster .play-overlay{
    position:absolute;
    inset:0;
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    transition:opacity .25s ease;
  }
  .card-poster:hover .play-overlay{opacity:1;}
  .card-poster .play-overlay i{
    width:58px;height:58px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--primary);
    color:#fff;
    border:3px solid #fff;
    font-size:1.25rem;
    box-shadow:4px 4px 0 rgba(0,0,0,0.5);
  }
  .card-poster .cap{
    padding:11px 12px 13px;
    border-top:3px solid var(--ink);
    background:var(--white);
  }
  .card-poster .cap strong{
    display:block;
    font-size:.95rem;
    font-weight:800;
    color:var(--text);
    line-height:1.35;
    margin-bottom:3px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .card-poster .cap span{
    font-size:.76rem;
    color:#5a6c92;
  }

  /* ---------- FILTER ---------- */
  .filter-panel{
    border:4px solid var(--ink);
    background:var(--white);
    box-shadow:10px 10px 0 var(--ink);
    padding:26px 24px;
  }
  .filter-row{
    display:flex;
    gap:12px;
    align-items:center;
    flex-wrap:wrap;
    padding:12px 0;
    border-bottom:2px dashed var(--soft);
  }
  .filter-row:last-child{border-bottom:none;}
  .filter-row .label{
    font-family:"Source Han Serif SC",serif;
    font-weight:900;
    min-width:74px;
    font-size:1rem;
    color:var(--primary);
  }
  .fbtn{
    border:2px solid var(--ink);
    background:var(--bg);
    padding:6px 15px;
    font-size:.88rem;
    font-weight:700;
    color:var(--text);
    cursor:pointer;
    transition:all .18s ease;
  }
  .fbtn:hover,.fbtn.on{
    background:var(--primary);
    color:#fff;
    box-shadow:3px 3px 0 var(--ink);
    transform:translate(-2px,-2px);
  }

  /* ---------- TABLE ---------- */
  .cmp-table{
    width:100%;
    border-collapse:collapse;
    border:4px solid var(--ink);
    background:var(--white);
    box-shadow:10px 10px 0 var(--ink);
    font-size:.95rem;
  }
  .cmp-table th,.cmp-table td{
    border:2px solid var(--ink);
    padding:14px 16px;
    text-align:left;
    vertical-align:top;
  }
  .cmp-table thead th{
    background:var(--ink);
    color:#fff;
    font-family:"Source Han Serif SC",serif;
    font-size:1.02rem;
    font-weight:900;
    letter-spacing:.03em;
  }
  .cmp-table tbody tr:nth-child(even){background:#eef4ff;}
  .cmp-table tbody th{
    background:var(--soft);
    font-weight:800;
    white-space:nowrap;
  }
  .cmp-wrap{overflow-x:auto;}

  /* ---------- STEPS ---------- */
  .step-list{
    list-style:none;
    counter-reset:st;
    padding:0;
    margin:0;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px;
  }
  @media (max-width:760px){.step-list{grid-template-columns:1fr;}}
  .step-list li{
    counter-increment:st;
    border:3px solid var(--ink);
    background:var(--white);
    box-shadow:7px 7px 0 var(--soft);
    padding:20px 20px 20px 78px;
    position:relative;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .step-list li:hover{
    transform:translate(-4px,-4px);
    box-shadow:10px 10px 0 var(--primary);
  }
  .step-list li::before{
    content:counter(st,decimal-leading-zero);
    position:absolute;
    left:18px;top:18px;
    font-family:"Inter",sans-serif;
    font-weight:900;
    font-size:1.5rem;
    color:var(--primary);
    line-height:1;
  }
  .step-list li h3{font-size:1.06rem;margin:0 0 6px;}
  .step-list li p{margin:0;font-size:.91rem;color:#3f5279;}

  /* ---------- TRAILER ---------- */
  .trailer-band{background:#0f1e3d;color:#fff;}
  .trailer-band .sec-head{border-color:#fff;}
  .trailer-band .sec-head h2{color:#fff;}
  .trailer-band .sec-head h2 .idx{color:var(--accent);}
  .trailer-band .sec-head .sub{color:rgba(255,255,255,0.7);}
  .trailer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr;
    gap:20px;
  }
  @media (max-width:900px){.trailer-grid{grid-template-columns:1fr;}}
  .trailer-card{
    border:3px solid #fff;
    background:#16294f;
    box-shadow:8px 8px 0 rgba(0,0,0,0.5);
    overflow:hidden;
    transition:transform .25s ease;
  }
  .trailer-card:hover{transform:translate(-4px,-4px);}
  .trailer-card .tv{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
  }
  .trailer-card .tv img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
  .trailer-card:hover .tv img{transform:scale(1.07);}
  .trailer-card .tv .play-overlay{opacity:.78;}
  .trailer-card .tinfo{padding:14px 16px;border-top:3px solid #fff;}
  .trailer-card .tinfo strong{display:block;font-size:1.02rem;font-weight:800;color:#fff;margin-bottom:4px;}
  .trailer-card .tinfo span{font-size:.82rem;color:rgba(255,255,255,0.66);}
  .trailer-feature .tv{aspect-ratio:16/9;}
  .trailer-feature .tinfo strong{font-size:1.3rem;}

  /* ---------- FRIEND LINK ---------- */
  .friendly{
    border-top:4px solid var(--ink);
    border-bottom:4px solid var(--ink);
    background:var(--white);
    padding:34px 0;
  }
  .friendly h2{
    font-size:1.15rem;
    margin:0 0 14px;
    display:flex;
    align-items:center;
    gap:9px;
  }
  .friendly h2 i{color:var(--primary);}
  .friendly .flinks{
    font-size:.92rem;
    color:#4b5f88;
    line-height:2.1;
    word-break:break-all;
  }

  /* ---------- FOOTER ---------- */
  footer.site-footer{
    background:var(--ink);
    color:rgba(255,255,255,0.78);
    padding:52px 0 28px;
    font-size:.92rem;
  }
  .footer-cols{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr;
    gap:32px;
  }
  @media (max-width:820px){.footer-cols{grid-template-columns:1fr;}}
  footer.site-footer .fbrand{
    font-family:"Source Han Serif SC",serif;
    font-weight:900;
    font-size:1.25rem;
    color:#fff;
    margin-bottom:12px;
    display:flex;
    align-items:center;
    gap:9px;
  }
  footer.site-footer .fbrand i{color:var(--accent);}
  footer.site-footer h4{
    color:#fff;
    font-size:.98rem;
    margin:0 0 14px;
    letter-spacing:.05em;
  }
  footer.site-footer ul{list-style:none;padding:0;margin:0;}
  footer.site-footer li{margin-bottom:9px;}
  footer.site-footer a{color:rgba(255,255,255,0.78);}
  footer.site-footer a:hover{color:var(--accent);}
  .foot-bottom{
    margin-top:34px;
    padding-top:20px;
    border-top:2px solid rgba(255,255,255,0.16);
    display:flex;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:.85rem;
  }

  /* ---------- REVEAL ---------- */
  .reveal{
    opacity:0;
    transform:translateY(38px);
    transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);
  }
  .reveal.in{opacity:1;transform:translateY(0);}

  .band-white{background:var(--white);border-top:4px solid var(--ink);border-bottom:4px solid var(--ink);}
  .band-plain{background:var(--bg);}

/* --- 子页面追加 --- */
.rank-intro {max-width:820px;line-height:1.9;font-size:1.02rem;color:var(--text);opacity:.88;}
.rank-note {display:flex;gap:14px;flex-wrap:wrap;margin-top:18px;}
.rank-legend {display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}
.lg-item {display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;
    border:2px solid var(--line);border-radius:999px;padding:4px 12px;background:var(--white);}
.lg-dot {width:9px;height:9px;border-radius:50%;display:inline-block;}
.dot-hot {background:var(--primary);}
.dot-score {background:var(--accent);}
.dot-new {background:#f59e0b;}
.dot-old {background:#8b5cf6;}
.rank-block {margin-top:46px;}
.rank-block .sec-head {margin-bottom:6px;}
.rank-sub {font-size:.9rem;opacity:.7;margin-bottom:18px;}
.chart-item .trend {font-size:.78rem;font-weight:700;margin-left:8px;}
.trend-up {color:#e11d48;}
.trend-flat {color:#64748b;}
.trend-down {color:#0ea5e9;}
.rank-tip {margin-top:34px;border:2px solid var(--line);border-radius:16px;background:var(--white);
    padding:22px 24px;box-shadow:5px 5px 0 var(--line);}
.rank-tip h3 {font-size:1.05rem;font-weight:800;margin:0 0 10px;}
.rank-tip p {margin:0 0 8px;line-height:1.85;font-size:.95rem;opacity:.88;}
.faq-item {border-bottom:2px dashed var(--soft);padding:16px 0;}
.faq-item:last-child {border-bottom:none;}
.faq-q {font-weight:800;font-size:1rem;margin:0 0 6px;display:flex;gap:8px;align-items:flex-start;}
.faq-q i {color:var(--primary);margin-top:3px;}
.faq-a {margin:0;padding-left:26px;line-height:1.85;font-size:.94rem;opacity:.85;}
.rank-intro {font-size:.96rem;}
.rank-tip {padding:18px 16px;}

/* --- 子页面追加 --- */
.guide-lead {max-width:820px;font-size:1.05rem;line-height:1.95;color:var(--text)}
.guide-lead b {color:var(--primary)}
.step-list li strong {display:block;font-size:1.02rem;margin-bottom:.25rem;color:var(--ink)}
.faq-box {background:var(--white);border:2px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:5px 5px 0 var(--soft)}
.faq-box details {border-bottom:1px solid var(--soft)}
.faq-box details:last-child {border-bottom:none}
.faq-box summary {
    cursor:pointer;padding:1rem 1.2rem;font-weight:700;list-style:none;
    display:flex;align-items:center;gap:.6rem;color:var(--ink);
  }
.faq-box summary::-webkit-details-marker {display:none}
.faq-box summary::after {content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;margin-left:auto;font-size:.75rem;color:var(--primary);transition:.2s}
.faq-box details[open] summary::after {transform:rotate(180deg)}
.faq-box .faq-a {padding:0 1.2rem 1.1rem;line-height:1.9;font-size:.96rem;color:var(--text)}
.tip-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}
.tip-card {background:var(--white);border:2px solid var(--line);border-radius:14px;padding:1.2rem;box-shadow:5px 5px 0 var(--soft)}
.tip-card i {color:var(--accent);font-size:1.5rem;margin-bottom:.6rem;display:block}
.tip-card h3 {font-size:1.05rem;margin:0 0 .5rem;color:var(--ink)}
.tip-card p {margin:0;font-size:.94rem;line-height:1.85}
.guide-table {width:100%;border-collapse:collapse;background:var(--white);border:2px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:5px 5px 0 var(--soft)}
.guide-table th,.guide-table td {padding:.85rem 1rem;text-align:left;font-size:.94rem;border-bottom:1px solid var(--soft);line-height:1.7}
.guide-table th {background:var(--primary);color:#fff;font-weight:700}
.guide-table tr:last-child td {border-bottom:none}
.guide-table td:first-child {font-weight:700;color:var(--ink);white-space:nowrap}
.note-banner {
    background:linear-gradient(120deg,var(--primary),var(--accent));color:#fff;
    border-radius:16px;padding:1.4rem 1.5rem;line-height:1.9;font-size:.98rem;
    box-shadow:6px 6px 0 var(--soft);
  }
.note-banner i {margin-right:.5rem}
.sec-block {margin-bottom:3rem}
.guide-table th,.guide-table td {padding:.7rem .75rem;font-size:.9rem}

/* --- 子页面追加 --- */
/* 本页专属少量样式，复用站点配色变量 */
.about-hero {
  padding:56px 0 34px;
  position:relative;
  overflow:hidden;
}
.about-hero h1 {
  font-size:clamp(1.7rem,4vw,2.7rem);
  font-weight:900;
  line-height:1.25;
  margin:14px 0 12px;
  color:var(--text);
}
.about-hero p {
  max-width:760px;
  font-size:1.02rem;
  line-height:1.85;
  color:var(--text);
  opacity:.82;
}
.about-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
  margin-top:26px;
}
.about-card {
  background:var(--white);
  border:2px solid var(--line);
  border-radius:16px;
  padding:22px 20px;
  box-shadow:6px 6px 0 var(--soft);
  transition:transform .18s ease, box-shadow .18s ease;
}
.about-card:hover {
  transform:translate(-3px,-3px);
  box-shadow:9px 9px 0 var(--soft);
}
.about-card h3 {
  font-size:1.06rem;
  font-weight:800;
  margin:0 0 10px;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:9px;
}
.about-card h3 i {
  color:var(--primary);
  font-size:.98rem;
}
.about-card p {
  font-size:.94rem;
  line-height:1.8;
  color:var(--text);
  opacity:.8;
  margin:0;
}
.about-section {
  padding:38px 0 6px;
}
.about-section > h2 {
  font-size:clamp(1.25rem,2.6vw,1.7rem);
  font-weight:900;
  color:var(--text);
  margin:0 0 8px;
  line-height:1.35;
}
.about-lead {
  font-size:.96rem;
  line-height:1.85;
  color:var(--text);
  opacity:.78;
  max-width:820px;
  margin:0 0 20px;
}
.about-list {
  list-style:none;
  padding:0;
  margin:18px 0 0;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:12px;
}
.about-list li {
  background:var(--white);
  border:2px solid var(--line);
  border-radius:12px;
  padding:14px 16px;
  font-size:.93rem;
  line-height:1.75;
  color:var(--text);
  display:flex;
  gap:10px;
}
.about-list li i {
  color:var(--accent);
  margin-top:4px;
}
.about-quote {
  margin-top:22px;
  background:var(--white);
  border:2px dashed var(--primary);
  border-radius:16px;
  padding:22px 22px;
  font-size:1rem;
  line-height:1.9;
  color:var(--text);
}
.about-quote strong {
  color:var(--primary);
}
.about-steps {
  counter-reset:step;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:18px;
  margin-top:22px;
}
.about-step {
  background:var(--white);
  border:2px solid var(--line);
  border-radius:16px;
  padding:20px 18px 18px;
  position:relative;
  box-shadow:6px 6px 0 var(--soft);
}
.about-step::before {
  counter-increment:step;
  content:counter(step);
  position:absolute;
  top:-16px;
  left:18px;
  width:32px;
  height:32px;
  border-radius:50%;
  background:var(--primary);
  color:var(--white);
  font-weight:800;
  font-size:.92rem;
  display:flex;
  align-items:center;
  justify-content:center;
}
.about-step h3 {
  font-size:1rem;
  font-weight:800;
  margin:10px 0 8px;
  color:var(--text);
}
.about-step p {
  font-size:.9rem;
  line-height:1.78;
  color:var(--text);
  opacity:.8;
  margin:0;
}
.about-cta {
  margin:44px 0 60px;
  background:var(--white);
  border:2px solid var(--line);
  border-radius:18px;
  padding:30px 24px;
  text-align:center;
  box-shadow:8px 8px 0 var(--soft);
}
.about-cta h2 {
  font-size:clamp(1.15rem,2.4vw,1.5rem);
  font-weight:900;
  color:var(--text);
  margin:0 0 10px;
}
.about-cta p {
  font-size:.95rem;
  line-height:1.8;
  color:var(--text);
  opacity:.78;
  max-width:620px;
  margin:0 auto 20px;
}
.about-hero {padding:34px 0 20px;}
.about-card, .about-step, .about-cta {box-shadow:4px 4px 0 var(--soft);}

/* --- 子页面追加 --- */
.doc-wrap {max-width:900px;margin:0 auto;padding:0 20px;}
.doc-card {background:var(--white);border:2px solid var(--line);border-radius:16px;padding:28px 26px;box-shadow:6px 6px 0 rgba(15,30,61,.12);margin-bottom:22px;}
.doc-card h2 {font-size:20px;font-weight:800;margin:0 0 14px;display:flex;align-items:center;gap:10px;color:var(--ink);}
.doc-card h2 i {color:var(--primary);font-size:18px;}
.doc-card h3 {font-size:16px;font-weight:700;margin:18px 0 8px;color:var(--ink);}
.doc-card p {font-size:15px;line-height:1.9;color:#33415c;margin:0 0 12px;}
.doc-card ul {margin:0 0 12px;padding-left:20px;}
.doc-card li {font-size:15px;line-height:1.9;color:#33415c;margin-bottom:6px;}
.doc-card a {color:var(--primary);font-weight:600;text-decoration:none;}
.doc-card a:hover {text-decoration:underline;}
.doc-note {background:var(--soft);border-left:5px solid var(--primary);border-radius:10px;padding:14px 18px;font-size:14px;line-height:1.85;color:#25375c;margin:6px 0 14px;}
.doc-meta {font-size:13px;color:#6b7a99;display:flex;flex-wrap:wrap;gap:18px;margin-bottom:6px;}
.doc-meta span i {margin-right:6px;color:var(--accent);}