:root{
  --main:#2563eb;
  --accent:#06b6d4;
  --bg:#f4f8ff;
  --ink:#0f1e3d;
  --card:#ffffff;
  --muted:#5a6b8c;
  --line:#dbe6fb;
  --shadow-sm:0 2px 10px rgba(37,99,235,.07);
  --shadow-md:0 8px 24px rgba(37,99,235,.14);
  --shadow-lg:0 18px 42px rgba(37,99,235,.22);
  --song:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  --hei:"Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--hei);
  background:var(--bg);
  color:var(--ink);
  font-size:13.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-family:var(--song);font-weight:800;letter-spacing:.5px;margin:0}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
::selection{background:var(--accent);color:#fff}

/* ---------- NAV ---------- */
.top-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,248,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 18px;
}
.brand{
  font-family:var(--song);
  font-weight:900;font-size:22px;
  color:var(--main);
  display:flex;align-items:center;gap:6px;
  white-space:nowrap;
}
.brand i{color:var(--accent)}
.nav-links{
  display:flex;align-items:center;gap:4px;
  flex:1;flex-wrap:nowrap;overflow-x:auto;
  scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{
  padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--ink);
  white-space:nowrap;transition:.2s;
}
.nav-links a:hover{background:#e3eeff;color:var(--main)}
.nav-links a.active{background:var(--main);color:#fff;box-shadow:var(--shadow-sm)}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:5px 14px;
  min-width:200px;
}
.nav-search input{
  border:0;outline:0;background:transparent;
  font-size:13px;color:var(--ink);width:100%;
}
.nav-search i{color:var(--accent);font-size:13px}
.burger{
  display:none;background:var(--main);color:#fff;border:0;
  width:38px;height:38px;border-radius:50%;font-size:16px;
}
@media(max-width:900px){
  .nav-search{display:none}
  .burger{display:flex;align-items:center;justify-content:center}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;padding:12px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 16px}
}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#e6f0ff 0%,#f4f8ff 45%,#e4fbff 100%);
  padding:56px 18px 46px;
}
.hero-bg{
  position:absolute;inset:-40px;
  background:
    radial-gradient(circle at 12% 20%,rgba(37,99,235,.16),transparent 42%),
    radial-gradient(circle at 88% 12%,rgba(6,182,212,.20),transparent 40%),
    radial-gradient(circle at 70% 88%,rgba(37,99,235,.10),transparent 46%);
  will-change:transform;
}
.hero-inner{position:relative;max-width:1280px;margin:0 auto;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);
  padding:6px 16px;border-radius:999px;
  font-size:12px;font-weight:700;color:var(--main);
  box-shadow:var(--shadow-sm);margin-bottom:16px;
}
.hero-tag i{color:var(--accent)}
.hero h1{
  font-size:clamp(26px,4.4vw,46px);
  line-height:1.22;max-width:820px;
  color:var(--ink);
}
.hero h1 span{color:var(--main)}
.hero h1 em{
  font-style:normal;color:var(--accent);
  border-bottom:5px solid rgba(6,182,212,.28);
}
.hero p.sub{
  max-width:660px;margin:16px 0 24px;
  color:var(--muted);font-size:14.5px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px}
.btn-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:999px;
  font-weight:700;font-size:14px;transition:.25s;border:0;
}
.btn-primary91{background:var(--main);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary91:hover{background:#1d4ed8;transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff}
.btn-ghost91{background:#fff;color:var(--main);border:1.5px solid var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost91:hover{background:#eaf2ff;transform:translateY(-2px);color:var(--main)}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;
}
.stat-item .num{
  font-family:var(--song);font-size:26px;font-weight:900;color:var(--main);
}
.stat-item .num small{font-size:13px;color:var(--accent);font-weight:800}
.stat-item .lbl{font-size:12px;color:var(--muted);letter-spacing:.6px}
.hero-carousel{
  position:relative;margin-top:38px;
  border-radius:22px;overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:1px solid #fff;
}
.slides{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.slide{
  min-width:100%;position:relative;
  aspect-ratio:21/7;
  background:#dbeafe;
}
.slide img{width:100%;height:100%;object-fit:cover}
.slide-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:60px 24px 18px;
  background:linear-gradient(transparent,rgba(15,30,61,.82));
  color:#fff;
}
.slide-cap h3{font-size:clamp(16px,2.4vw,24px)}
.slide-cap p{font-size:12.5px;opacity:.85;margin:4px 0 0}
.slide-badge{
  position:absolute;top:16px;left:16px;
  background:var(--accent);color:#fff;
  font-size:11px;font-weight:800;padding:4px 12px;border-radius:999px;
  letter-spacing:.5px;
}
.carousel-dots{
  position:absolute;bottom:14px;right:18px;
  display:flex;gap:7px;z-index:5;
}
.carousel-dots button{
  width:9px;height:9px;border-radius:50%;border:0;
  background:rgba(255,255,255,.5);cursor:pointer;padding:0;transition:.2s;
}
.carousel-dots button.on{background:#fff;width:24px;border-radius:999px}

/* ---------- SECTION SHELL ---------- */
.section{max-width:1280px;margin:0 auto;padding:40px 18px}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:18px;flex-wrap:wrap;
}
.sec-head h2{
  font-size:21px;display:flex;align-items:center;gap:9px;
}
.sec-head h2 i{
  width:32px;height:32px;border-radius:50%;
  background:linear-gradient(135deg,var(--main),var(--accent));
  color:#fff;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;
}
.sec-head .desc{font-size:12.5px;color:var(--muted);margin-top:4px}
.sec-more{
  font-size:12.5px;font-weight:700;color:var(--main);
  padding:7px 16px;border-radius:999px;background:#e7f0ff;
  transition:.2s;white-space:nowrap;
}
.sec-more:hover{background:var(--main);color:#fff}

/* ---------- CATEGORY PILLS ---------- */
.cat-row{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));
  gap:12px;
}
.cat-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:16px;padding:14px 14px;
  display:flex;align-items:center;gap:10px;
  box-shadow:var(--shadow-sm);transition:.25s;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd4ff}
.cat-card .ic{
  width:36px;height:36px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#e5efff,#dff9ff);
  color:var(--main);font-size:15px;
}
.cat-card b{font-size:13.5px;display:block}
.cat-card span{font-size:11px;color:var(--muted)}

/* ---------- POSTER RAIL (horizontal scroll) ---------- */
.rail{
  display:flex;gap:14px;overflow-x:auto;
  padding:4px 2px 16px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:#c7dcff;border-radius:999px}
.rail .poster{flex:0 0 158px;scroll-snap-align:start}

/* ---------- POSTER WALL GRID ---------- */
.wall{
  display:grid;gap:14px;
  grid-template-columns:repeat(auto-fill,minmax(158px,1fr));
}

/* ---------- POSTER CARD ---------- */
.poster{
  background:var(--card);
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s;
  position:relative;
}
.poster:hover{
  transform:translateY(-6px) scale(1.025);
  box-shadow:var(--shadow-lg);
  border-color:#b9d3ff;
  z-index:3;
}
.poster .thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#dbeafe}
.poster .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.poster:hover .thumb img{transform:scale(1.06)}
.badge-q{
  position:absolute;top:8px;left:8px;
  font-size:10px;font-weight:800;letter-spacing:.4px;
  padding:3px 8px;border-radius:8px;color:#fff;
  background:linear-gradient(135deg,var(--main),var(--accent));
  box-shadow:0 2px 8px rgba(37,99,235,.35);
}
.badge-q.fourk{background:linear-gradient(135deg,#0ea5e9,#06b6d4)}
.badge-q.hd{background:linear-gradient(135deg,#2563eb,#3b82f6)}
.score-badge{
  position:absolute;bottom:8px;right:8px;
  background:rgba(15,30,61,.78);
  color:#fff;font-size:11px;font-weight:800;
  padding:2px 9px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.score-badge i{color:#fbbf24;font-size:9px;margin-right:3px}
.poster .meta{padding:9px 10px 11px}
.poster .meta h4{
  font-family:var(--hei);font-size:13px;font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  margin-bottom:3px;
}
.poster .meta .sub{
  font-size:11px;color:var(--muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- RANKING ---------- */
.rank-wrap{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:760px){.rank-wrap{grid-template-columns:1fr}}
.rank-item{
  display:flex;align-items:center;gap:12px;
  background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:9px 12px;
  box-shadow:var(--shadow-sm);cursor:pointer;
  transition:.22s;
}
.rank-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#b9d3ff}
.rank-no{
  font-family:var(--song);font-weight:900;font-size:19px;
  color:var(--muted);width:26px;text-align:center;flex:0 0 auto;
}
.rank-item:nth-child(1) .rank-no,.rank-item:nth-child(2) .rank-no,.rank-item:nth-child(3) .rank-no{color:var(--main)}
.rank-pic{
  width:48px;height:66px;border-radius:9px;overflow:hidden;
  flex:0 0 auto;background:#dbeafe;
}
.rank-pic img{width:100%;height:100%;object-fit:cover}
.rank-info{flex:1;min-width:0}
.rank-info h4{
  font-family:var(--hei);font-size:13.5px;font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.rank-info p{font-size:11px;color:var(--muted);margin:2px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-score{
  font-family:var(--song);font-weight:900;font-size:17px;color:var(--accent);
  flex:0 0 auto;
}

/* ---------- TOPIC ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.topic-card{
  border-radius:16px;padding:18px;
  background:linear-gradient(135deg,#fff,#f0f7ff);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);transition:.25s;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.topic-card .ic{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--main),var(--accent));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:10px;
}
.topic-card h4{font-size:14.5px;margin-bottom:6px}
.topic-card p{font-size:12px;color:var(--muted);margin:0}
.topic-card ul{margin:8px 0 0;padding-left:16px;font-size:12px;color:var(--muted)}
.topic-card ul li{margin-bottom:3px}

/* ---------- TIPS + PICKER ---------- */
.two-col{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
@media(max-width:880px){.two-col{grid-template-columns:1fr}}
.panel{
  background:var(--card);border:1px solid var(--line);
  border-radius:18px;padding:20px;box-shadow:var(--shadow-sm);
}
.panel h3{font-size:16.5px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.panel h3 i{color:var(--accent)}
.tip-list{list-style:none;padding:0;margin:0}
.tip-list li{
  display:flex;gap:10px;font-size:12.5px;color:#33415c;
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.tip-list li:last-child{border-bottom:0}
.tip-list li i{
  color:var(--main);font-size:11px;margin-top:5px;flex:0 0 auto;
}
.tip-list li b{color:var(--ink)}
/* accordion */
.acc-item{border:1px solid var(--line);border-radius:12px;margin-bottom:8px;overflow:hidden;background:#fbfdff}
.acc-btn{
  width:100%;text-align:left;border:0;background:transparent;
  padding:11px 14px;font-size:13px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;
}
.acc-btn i{color:var(--accent);transition:transform .25s;font-size:12px}
.acc-btn.open i{transform:rotate(180deg)}
.acc-body{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
  font-size:12.5px;color:var(--muted);
}
.acc-body p{margin:0;padding:0 14px 13px}
.acc-body.show{max-height:240px}

/* picker */
.picker-box{
  border-radius:14px;background:linear-gradient(135deg,#eaf3ff,#e3fbff);
  padding:18px;text-align:center;border:1px dashed #b9d3ff;
}
.picker-box .pick-name{
  font-family:var(--song);font-size:19px;font-weight:900;color:var(--main);
  margin-bottom:4px;min-height:29px;
}
.picker-box .pick-info{font-size:12px;color:var(--muted);min-height:36px}
.pick-btn{
  margin-top:12px;border:0;border-radius:999px;
  padding:11px 26px;font-weight:800;font-size:13.5px;
  background:linear-gradient(135deg,var(--main),var(--accent));
  color:#fff;box-shadow:var(--shadow-md);transition:.22s;
}
.pick-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}

/* ---------- FRIEND LINKS ---------- */
.friend-wrap{
  background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:16px 18px;box-shadow:var(--shadow-sm);
}
.friend-wrap h4{font-size:13px;color:var(--main);margin-bottom:8px;display:flex;gap:7px;align-items:center}
.friend-links{font-size:12.5px;color:var(--muted);line-height:1.9}

/* ---------- FOOTER ---------- */
footer{
  margin-top:20px;background:linear-gradient(180deg,#0f1e3d,#0a1530);
  color:#c3d3f0;padding:40px 18px 22px;
}
.foot-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
@media(max-width:820px){.foot-inner{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-inner{grid-template-columns:1fr}}
.foot-brand{font-family:var(--song);font-size:21px;font-weight:900;color:#fff;display:flex;gap:7px;align-items:center;margin-bottom:10px}
.foot-brand i{color:var(--accent)}
.foot-inner p{font-size:12px;color:#8fa5cc;line-height:1.8}
.foot-inner h5{color:#fff;font-size:13.5px;margin-bottom:10px;font-family:var(--hei);font-weight:800}
.foot-inner ul{list-style:none;padding:0;margin:0}
.foot-inner ul li{font-size:12px;margin-bottom:7px}
.foot-inner ul li a{color:#8fa5cc;transition:.2s}
.foot-inner ul li a:hover{color:#fff}
.foot-bottom{
  max-width:1280px;margin:26px auto 0;padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:11.5px;color:#7288ad;text-align:center;
}

/* ---------- DRAWER (详情侧栏) ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,61,.55);
  opacity:0;visibility:hidden;transition:.3s;z-index:1050;
  backdrop-filter:blur(3px);
}
.drawer-mask.on{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(400px,92vw);background:#fff;z-index:1060;
  transform:translateX(102%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  box-shadow:-16px 0 50px rgba(15,30,61,.28);
  display:flex;flex-direction:column;
}
.drawer.on{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,#eef5ff,#e6fbff);
}
.drawer-head h3{font-size:15px;color:var(--main)}
.drawer-close{
  width:32px;height:32px;border-radius:50%;border:0;
  background:#fff;color:var(--ink);font-size:15px;
  box-shadow:var(--shadow-sm);cursor:pointer;transition:.2s;
}
.drawer-close:hover{background:var(--main);color:#fff;transform:rotate(90deg)}
.drawer-body{overflow-y:auto;padding:16px 18px 30px}
.drawer-poster{
  width:100%;border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow-md);margin-bottom:14px;
  background:#dbeafe;
}
.drawer-poster img{width:100%;aspect-ratio:16/10;object-fit:cover}
.drawer-body h2{font-size:19px;margin-bottom:6px}
.drawer-rows{display:flex;flex-flow:row wrap;gap:6px;margin:8px 0 14px}
.chip{
  font-size:11px;font-weight:700;padding:4px 11px;border-radius:999px;
  background:#e7f0ff;color:var(--main);
}
.chip.alt{background:#e0fbff;color:#0891b2}
.drawer-field{font-size:12.5px;color:#33415c;margin-bottom:8px;display:flex;gap:8px}
.drawer-field b{color:var(--ink);flex:0 0 46px}
.drawer-plot{
  font-size:12.5px;color:#4a5c7d;line-height:1.75;
  background:#f5f9ff;border-left:3px solid var(--accent);
  border-radius:8px;padding:10px 12px;margin-top:10px;
}
.rating-big{
  display:flex;align-items:center;gap:8px;margin:6px 0 12px;
}
.rating-big .rv{font-family:var(--song);font-size:28px;font-weight:900;color:var(--accent);line-height:1}
.rating-big .rs{font-size:11px;color:var(--muted)}
.stars i{color:#fbbf24;font-size:11px}

/* --- 子页面追加 --- */
.about-wrap {max-width:1120px;margin:0 auto;padding:0 20px;}
.about-hero {position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#2563eb 0%,#1e4fd6 45%,#06b6d4 100%);color:#fff;padding:56px 44px;margin-top:34px;box-shadow:var(--shadow-md);}
.about-hero::after {content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.12);}
.about-hero::before {content:"";position:absolute;left:-60px;bottom:-90px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08);}
.about-hero h1 {font-family:var(--hei);font-weight:900;font-size:2.1rem;line-height:1.35;margin:0 0 14px;position:relative;z-index:2;}
.about-hero p {margin:0;max-width:720px;color:rgba(255,255,255,.92);font-size:1.02rem;line-height:1.9;position:relative;z-index:2;}
.about-hero .hero-tag {position:relative;z-index:2;}
.about-stat {display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2;}
.about-stat div {background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:12px 20px;backdrop-filter:blur(4px);}
.about-stat b {display:block;font-size:1.35rem;font-weight:800;}
.about-stat span {font-size:.82rem;color:rgba(255,255,255,.85);}
.about-sec {margin-top:52px;}
.about-sec h2 {font-size:1.5rem;font-weight:800;color:var(--ink);margin-bottom:8px;letter-spacing:.2px;}
.about-sec .lead-line {color:var(--muted);font-size:.95rem;margin-bottom:26px;}
.about-card {background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px 24px;height:100%;box-shadow:var(--shadow-sm);transition:.25s;}
.about-card:hover {transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd3fb;}
.about-card i {width:46px;height:46px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;font-size:1.15rem;color:#fff;background:linear-gradient(135deg,var(--main),var(--accent));margin-bottom:16px;}
.about-card h3 {font-size:1.06rem;font-weight:700;margin:0 0 10px;color:var(--ink);}
.about-card p {margin:0;color:var(--muted);font-size:.92rem;line-height:1.85;}
.about-text p {color:#33456b;line-height:2;font-size:.97rem;margin-bottom:16px;}
.about-text strong {color:var(--main);}
.about-list {list-style:none;padding:0;margin:0;}
.about-list li {display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);color:#33456b;font-size:.94rem;line-height:1.8;}
.about-list li:last-child {border-bottom:none;}
.about-list i {color:var(--accent);margin-top:5px;}
.about-panel {background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px 28px;box-shadow:var(--shadow-sm);height:100%;}
.about-panel h3 {font-size:1.1rem;font-weight:700;margin:0 0 14px;color:var(--ink);}
.about-note {background:linear-gradient(120deg,rgba(37,99,235,.07),rgba(6,182,212,.07));border:1px solid var(--line);border-radius:18px;padding:26px 26px;color:#33456b;line-height:1.95;font-size:.94rem;}
.about-note b {color:var(--main);}
.about-timeline {position:relative;padding-left:26px;margin-top:6px;}
.about-timeline::before {content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line);}
.about-timeline .tl-item {position:relative;padding-bottom:22px;}
.about-timeline .tl-item:last-child {padding-bottom:0;}
.about-timeline .tl-item::before {content:"";position:absolute;left:-26px;top:5px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--main);box-shadow:0 0 0 3px rgba(37,99,235,.12);}
.about-timeline h4 {font-size:.98rem;font-weight:700;margin:0 0 6px;color:var(--ink);}
.about-timeline p {margin:0;color:var(--muted);font-size:.9rem;line-height:1.8;}
.about-cta {margin-top:52px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:36px 30px;text-align:center;box-shadow:var(--shadow-sm);}
.about-cta h2 {font-size:1.35rem;font-weight:800;margin:0 0 12px;color:var(--ink);}
.about-cta p {color:var(--muted);margin:0 0 22px;font-size:.95rem;}
.about-cta .btn-pill {margin:0 6px 10px;}
.about-hero {padding:36px 24px;border-radius:16px;margin-top:22px;}
.about-hero h1 {font-size:1.5rem;}
.about-sec {margin-top:38px;}
.about-sec h2 {font-size:1.22rem;}
.about-stat div {flex:1 1 40%;}

/* --- 子页面追加 --- */
/* 本页专属少量样式，配色沿用首页变量 */
.guide-hero {padding:64px 0 40px;background:radial-gradient(1200px 420px at 12% -10%,rgba(37,99,235,.16),transparent 60%),radial-gradient(900px 380px at 88% 0%,rgba(6,182,212,.16),transparent 62%),var(--bg);}
.guide-hero h1 {font-family:var(--hei);font-weight:800;color:var(--ink);font-size:clamp(1.8rem,4vw,2.9rem);line-height:1.2;margin:14px 0 16px;letter-spacing:-.5px;}
.guide-hero p {color:var(--muted);max-width:720px;font-size:1.02rem;line-height:1.85;margin:0;}
.g-hero-tag {display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(37,99,235,.1);color:var(--main);font-weight:600;font-size:.86rem;border:1px solid rgba(37,99,235,.2);}
.g-hero-tag i {color:var(--accent);}
.g-quick {display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:34px;}
.g-quick a {display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 18px;text-decoration:none;box-shadow:var(--shadow-sm);transition:.25s;}
.g-quick a:hover {transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(37,99,235,.35);}
.g-quick .qi {width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-size:1.05rem;}
.g-quick strong {display:block;color:var(--ink);font-size:.97rem;margin-bottom:4px;}
.g-quick span {color:var(--muted);font-size:.84rem;line-height:1.6;}
.g-block {background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px 30px 26px;box-shadow:var(--shadow-sm);margin-bottom:26px;}
.g-block h2 {font-family:var(--hei);font-weight:800;font-size:clamp(1.25rem,2.4vw,1.6rem);color:var(--ink);margin:0 0 8px;letter-spacing:-.3px;}
.g-block .g-lead {color:var(--muted);font-size:.94rem;line-height:1.8;margin:0 0 22px;}
.g-step {display:flex;gap:18px;padding:18px 0;border-top:1px dashed var(--line);}
.g-step:first-of-type {border-top:0;padding-top:0;}
.g-step .num {flex:0 0 40px;width:40px;height:40px;border-radius:50%;background:rgba(37,99,235,.1);color:var(--main);display:grid;place-items:center;font-weight:800;font-family:var(--hei);border:1px solid rgba(37,99,235,.22);}
.g-step h3 {font-size:1.02rem;color:var(--ink);font-weight:700;margin:0 0 6px;font-family:var(--hei);}
.g-step p {margin:0;color:var(--muted);font-size:.9rem;line-height:1.8;}
.g-step p b {color:var(--main);font-weight:600;}
.g-tip {background:rgba(6,182,212,.08);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;padding:12px 16px;color:var(--ink);font-size:.88rem;line-height:1.7;margin-top:14px;}
.g-tip i {color:var(--accent);margin-right:6px;}
.g-cats {display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;}
.g-cat {background:linear-gradient(180deg,rgba(37,99,235,.05),rgba(37,99,235,0));border:1px solid var(--line);border-radius:14px;padding:16px 18px;}
.g-cat h4 {font-size:.98rem;color:var(--ink);font-weight:700;margin:0 0 8px;display:flex;align-items:center;gap:8px;font-family:var(--hei);}
.g-cat h4 i {color:var(--accent);font-size:.9rem;}
.g-cat p {margin:0;color:var(--muted);font-size:.85rem;line-height:1.75;}
.g-faq {border-top:1px solid var(--line);padding:18px 0;}
.g-faq:first-of-type {border-top:0;padding-top:0;}
.g-faq h3 {font-size:1rem;color:var(--ink);font-weight:700;margin:0 0 8px;font-family:var(--hei);}
.g-faq h3 i {color:var(--main);margin-right:8px;font-size:.9rem;}
.g-faq p {margin:0;color:var(--muted);font-size:.9rem;line-height:1.8;}
.g-cta {background:linear-gradient(135deg,rgba(37,99,235,.1),rgba(6,182,212,.12));border:1px solid rgba(37,99,235,.22);border-radius:20px;padding:32px 30px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;margin-bottom:30px;}
.g-cta h2 {font-family:var(--hei);font-size:1.3rem;color:var(--ink);margin:0 0 6px;font-weight:800;}
.g-cta p {margin:0;color:var(--muted);font-size:.9rem;}
.g-block {padding:22px 18px;}
.g-step {gap:12px;}
.g-step .num {flex:0 0 34px;width:34px;height:34px;font-size:.9rem;}
.g-cta {padding:24px 20px;}

/* --- 子页面追加 --- */
.page-hero {position:relative;overflow:hidden;padding:64px 0 48px;background:linear-gradient(135deg,#eaf2ff 0%,#f4f8ff 55%,#e6fbff 100%);border-bottom:1px solid var(--line);}
.page-hero::before {content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(6,182,212,.16),transparent 68%);top:-160px;right:-100px;}
.page-hero::after {content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.14),transparent 68%);bottom:-180px;left:-80px;}
.page-hero-inner {position:relative;z-index:2;max-width:820px;}
.page-tag {display:inline-flex;align-items:center;gap:8px;background:rgba(37,99,235,.1);color:var(--main);font-weight:600;font-size:13px;padding:7px 14px;border-radius:999px;margin-bottom:18px;letter-spacing:.5px;}
.page-hero h1 {font-family:var(--song);font-size:clamp(26px,4vw,40px);line-height:1.3;color:var(--ink);margin:0 0 14px;font-weight:700;}
.page-hero h1 em {font-style:normal;color:var(--main);}
.page-hero p {color:var(--muted);font-size:15.5px;line-height:1.85;margin:0;max-width:700px;}
.doc-wrap {max-width:900px;margin:0 auto;}
.doc-card {background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm);padding:30px 32px;margin-bottom:22px;transition:box-shadow .25s,transform .25s;}
.doc-card:hover {box-shadow:var(--shadow-md);transform:translateY(-2px);}
.doc-card h2 {font-family:var(--song);font-size:20px;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:10px;font-weight:700;line-height:1.4;}
.doc-card h2 .num {flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-family:var(--hei);font-weight:700;box-shadow:var(--shadow-sm);}
.doc-card p {color:var(--muted);font-size:14.8px;line-height:1.9;margin:0 0 12px;}
.doc-card p:last-child {margin-bottom:0;}
.doc-card strong {color:var(--ink);font-weight:600;}
.doc-card ul {margin:0 0 12px;padding-left:0;list-style:none;}
.doc-card ul li {position:relative;padding-left:22px;color:var(--muted);font-size:14.6px;line-height:1.9;margin-bottom:8px;}
.doc-card ul li::before {content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;color:var(--accent);font-size:12px;}
.doc-note {border-left:4px solid var(--main);background:rgba(37,99,235,.05);border-radius:0 12px 12px 0;padding:14px 18px;margin:14px 0 0;font-size:14px;color:var(--ink);line-height:1.8;}
.doc-note i {color:var(--main);margin-right:6px;}
.doc-meta {display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:13.5px;margin-top:6px;}
.doc-meta span i {color:var(--accent);margin-right:6px;}
.doc-cta {background:linear-gradient(135deg,var(--main),#1d4ed8 60%,var(--accent));border-radius:18px;padding:30px 32px;color:#fff;box-shadow:var(--shadow-md);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;}
.doc-cta h3 {font-family:var(--song);font-size:19px;margin:0 0 6px;font-weight:700;}
.doc-cta p {margin:0;font-size:14px;opacity:.9;line-height:1.7;}
.doc-cta a.btn-pill {background:#fff;color:var(--main);font-weight:700;padding:11px 24px;border-radius:999px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;box-shadow:var(--shadow-sm);transition:transform .2s;}
.doc-cta a.btn-pill:hover {transform:translateY(-2px);}
.doc-index {display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.doc-index a {font-size:13.5px;color:var(--main);background:rgba(37,99,235,.08);border:1px solid var(--line);padding:7px 14px;border-radius:999px;text-decoration:none;transition:.2s;}
.doc-index a:hover {background:var(--main);color:#fff;border-color:var(--main);}
.page-hero {padding:44px 0 34px;}
.doc-card {padding:22px 18px;border-radius:14px;}
.doc-cta {padding:24px 20px;}

/* --- 子页面追加 --- */
.privacy-wrap {padding:44px 0 70px;}
.privacy-main {background:var(--card);border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--shadow-sm);padding:clamp(22px,3.6vw,44px);}
.privacy-main h2 {font-family:var(--song);font-size:clamp(1.15rem,2.2vw,1.45rem);font-weight:800;
    color:var(--ink);margin:38px 0 14px;padding-left:14px;border-left:5px solid var(--main);line-height:1.45;}
.privacy-main h2:first-of-type {margin-top:6px;}
.privacy-main h3 {font-size:1.02rem;font-weight:700;color:var(--main);margin:22px 0 10px;}
.privacy-main p {color:var(--muted);line-height:1.95;font-size:.95rem;margin:0 0 14px;}
.privacy-main ul {color:var(--muted);line-height:1.95;font-size:.95rem;padding-left:22px;margin:0 0 16px;}
.privacy-main li {margin-bottom:8px;}
.privacy-main strong {color:var(--ink);font-weight:700;}
.privacy-main a {color:var(--main);text-decoration:none;font-weight:600;}
.privacy-main a:hover {color:var(--accent);}
.side-card {background:var(--card);border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--shadow-sm);padding:22px;margin-bottom:20px;}
.side-card h3 {font-size:.98rem;font-weight:800;color:var(--ink);margin:0 0 14px;
    display:flex;align-items:center;gap:8px;}
.side-card h3 i {color:var(--accent);}
.side-card ul {list-style:none;margin:0;padding:0;}
.side-card li {margin-bottom:10px;}
.side-card li a {color:var(--muted);text-decoration:none;font-size:.9rem;display:flex;
    align-items:center;gap:8px;transition:.2s;}
.side-card li a:hover {color:var(--main);transform:translateX(3px);}
.side-card li a i {font-size:.7rem;color:var(--accent);}
.side-note {background:linear-gradient(150deg,rgba(37,99,235,.9),rgba(6,182,212,.85));
    color:#fff;border:none;}
.side-note h3 {color:#fff;}
.side-note h3 i {color:#fff;}
.side-note p {color:rgba(255,255,255,.9);font-size:.88rem;line-height:1.85;margin:0;}
.update-bar {display:flex;flex-wrap:wrap;gap:10px 24px;background:rgba(37,99,235,.06);
    border:1px dashed var(--line);border-radius:14px;padding:14px 18px;margin-bottom:26px;font-size:.86rem;color:var(--muted);}
.update-bar span i {color:var(--main);margin-right:6px;}
.side-col {margin-top:26px;}