:root{
  --main:#059669;
  --accent:#14b8a6;
  --bg:#f0fdfa;
  --text:#134e4a;
  --card:#ffffff;
  --muted:#4b7c74;
  --line:rgba(5,150,105,.16);
  --shadow-soft:0 10px 34px -12px rgba(5,150,105,.24), 0 4px 14px -8px rgba(20,184,166,.18);
  --shadow-hover:0 22px 50px -16px rgba(5,150,105,.36), 0 8px 22px -10px rgba(20,184,166,.26);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --mono:'SFMono-Regular',ui-monospace,'Menlo','Consolas',monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  background-color:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.65;
  background-image:
    linear-gradient(rgba(5,150,105,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5,150,105,.055) 1px, transparent 1px);
  background-size:26px 26px, 26px 26px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,.brand-title{font-weight:900;letter-spacing:-.02em;color:var(--text)}
p{margin-bottom:.55rem}
a{text-decoration:none;color:var(--main)}
a:hover{color:var(--accent)}
.container-x{max-width:1180px;margin:0 auto;padding:0 20px}

/* 滚动进度条 */
#readbar{
  position:fixed;top:0;left:0;height:4px;width:0;
  background:linear-gradient(90deg,var(--main),var(--accent));
  z-index:2000;border-radius:0 4px 4px 0;
  box-shadow:0 0 12px rgba(20,184,166,.6);
}

/* 导航 */
.nav-shell{
  position:sticky;top:0;z-index:1500;
  background:rgba(240,253,250,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.navbar-custom{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 0;gap:14px;
}
.brand-title{
  display:inline-flex;align-items:center;gap:8px;
  font-size:20px;font-weight:900;color:var(--text);
  padding:6px 14px;border-radius:999px;
  background:linear-gradient(135deg,rgba(5,150,105,.12),rgba(20,184,166,.1));
  border:1px solid var(--line);
  transition:.28s;
}
.brand-title:hover{transform:translateY(-1px);box-shadow:var(--shadow-soft);color:var(--text)}
.brand-title i{color:var(--main);font-size:17px}
.nav-links{
  display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:wrap;
}
.nav-links a{
  display:inline-block;padding:7px 13px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:.24s;white-space:nowrap;
}
.nav-links a:hover{color:var(--main);background:#fff;border-color:var(--line);box-shadow:var(--shadow-soft)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,var(--main),var(--accent));box-shadow:0 8px 20px -8px rgba(5,150,105,.65)}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);color:var(--main);
  width:40px;height:40px;border-radius:12px;font-size:16px;cursor:pointer;box-shadow:var(--shadow-soft);
}
@media(max-width:860px){
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;left:16px;right:16px;top:calc(100% + 8px);
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    padding:10px;box-shadow:var(--shadow-hover);display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 14px;border-radius:10px}
  .nav-inner{position:relative}
}

/* 通用区块 */
section{padding:44px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--main);background:rgba(5,150,105,.09);
  padding:5px 12px;border-radius:999px;border:1px solid var(--line);
}
.section-head{margin-bottom:26px}
.section-head h2{font-size:26px;margin:10px 0 6px;line-height:1.25}
.section-head p{color:var(--muted);font-size:13px;max-width:720px;margin:0}
@media(min-width:768px){.section-head h2{font-size:31px}}

/* 动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* HERO */
.hero{
  padding:40px 0 30px;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 320px at 12% 0%,rgba(20,184,166,.18),transparent 70%),
             radial-gradient(520px 300px at 88% 20%,rgba(5,150,105,.14),transparent 72%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.hero h1{
  font-size:clamp(28px,5.2vw,46px);line-height:1.14;margin:14px 0 12px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--main),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{color:var(--muted);font-size:14px;max-width:660px;margin-bottom:18px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;
}
.stat-pill{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:9px 15px;box-shadow:var(--shadow-soft);min-width:120px;
  transition:.26s;
}
.stat-pill:hover{transform:translateY(-2px);border-color:var(--accent)}
.stat-pill b{display:block;font-family:var(--mono);font-size:19px;color:var(--main);line-height:1.2}
.stat-pill span{font-size:11px;color:var(--muted);letter-spacing:.03em}

/* 关键词标签云 */
.cloud{
  display:flex;flex-wrap:wrap;gap:8px;padding:16px;
  background:rgba(255,255,255,.7);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);
  backdrop-filter:blur(6px);
}
.cloud .tag{
  font-size:12px;font-weight:600;color:var(--muted);
  padding:6px 13px;border-radius:999px;background:#fff;
  border:1px solid var(--line);transition:.24s;cursor:default;
  animation:floaty 5.5s ease-in-out infinite;
}
.cloud .tag:hover{color:#fff;background:linear-gradient(135deg,var(--main),var(--accent));border-color:transparent;transform:translateY(-3px) scale(1.05)}
.cloud .tag.big{font-size:15px;font-weight:800;color:var(--main);background:rgba(5,150,105,.08)}
.cloud .tag.mid{font-size:13px;color:var(--text)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}

/* 特色卡片 + 标签页 */
.tabs-bar{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;
}
.tab-btn{
  border:1px solid var(--line);background:#fff;color:var(--muted);
  padding:9px 18px;border-radius:999px;font-size:13px;font-weight:700;
  cursor:pointer;transition:.24s;box-shadow:0 4px 14px -10px rgba(5,150,105,.5);
}
.tab-btn:hover{border-color:var(--accent);color:var(--main)}
.tab-btn.active{
  color:#fff;background:linear-gradient(135deg,var(--main),var(--accent));
  border-color:transparent;box-shadow:0 10px 24px -12px rgba(5,150,105,.8);
}
.tab-pane{display:none}
.tab-pane.active{display:block;animation:fadeUp .5s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.card-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:14px}
@media(min-width:600px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.card-grid{grid-template-columns:repeat(3,1fr)}}

.mcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:16px;box-shadow:var(--shadow-soft);transition:.3s cubic-bezier(.2,.7,.3,1);
  display:flex;gap:13px;align-items:flex-start;
}
.mcard:hover{transform:scale(1.022) translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover)}
.mcard .thumb{
  flex:0 0 54px;height:70px;border-radius:var(--radius-sm);
  background:linear-gradient(140deg,rgba(5,150,105,.9),rgba(20,184,166,.7));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.mcard h4{font-size:14px;margin:0 0 3px;font-weight:800}
.mcard .meta{font-family:var(--mono);font-size:11px;color:var(--main);margin-bottom:4px}
.mcard p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}
.mcard .chip{
  display:inline-block;font-size:10px;font-weight:700;letter-spacing:.05em;
  padding:2px 8px;border-radius:999px;background:rgba(20,184,166,.13);color:var(--accent);margin-top:6px;
}

/* 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),rgba(20,184,166,.15));
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:18px}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--main);box-shadow:0 0 0 4px rgba(5,150,105,.1);
  transition:.25s;
}
.tl-item:hover::before{border-color:var(--accent);box-shadow:0 0 0 6px rgba(20,184,166,.16)}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:14px 16px;box-shadow:var(--shadow-soft);transition:.28s;
}
.tl-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.tl-step{
  font-family:var(--mono);font-size:11px;font-weight:700;color:var(--accent);
  letter-spacing:.1em;margin-bottom:3px;
}
.tl-card h4{font-size:14px;margin:0 0 5px;font-weight:800}
.tl-card p{font-size:12.5px;color:var(--muted);margin:0}

.longread{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-soft);
}
.longread h3{font-size:17px;margin:18px 0 8px;font-weight:800}
.longread h3:first-child{margin-top:0}
.longread p{font-size:13px;color:var(--muted);line-height:1.8}
.longread .kv{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:14px 0;
}
@media(min-width:640px){.longread .kv{grid-template-columns:repeat(4,1fr)}}
.kv div{
  background:linear-gradient(160deg,rgba(5,150,105,.07),rgba(20,184,166,.05));
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px 12px;
}
.kv b{display:block;font-family:var(--mono);font-size:17px;color:var(--main);line-height:1.25}
.kv span{font-size:11px;color:var(--muted)}

/* FAQ */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:10px;overflow:hidden;box-shadow:var(--shadow-soft);transition:.26s;
}
.faq-item:hover{border-color:var(--accent)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:14px 16px;font-size:13.5px;font-weight:700;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-q i{color:var(--main);transition:.3s;font-size:12px;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 16px 14px;margin:0;font-size:12.5px;color:var(--muted);line-height:1.75}
.faq-item.open .faq-a{max-height:340px}

/* CTA */
.cta-box{
  background:linear-gradient(135deg,var(--main),var(--accent));
  border-radius:var(--radius-lg);padding:30px 24px;color:#fff;
  box-shadow:0 26px 60px -22px rgba(5,150,105,.7);
  position:relative;overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-box h2{color:#fff;font-size:24px;margin:0 0 8px}
.cta-box p{color:rgba(255,255,255,.9);font-size:13px;max-width:560px;margin-bottom:16px}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--main);font-weight:800;font-size:13.5px;
  padding:11px 22px;border-radius:999px;border:0;transition:.26s;
  box-shadow:0 12px 26px -12px rgba(0,0,0,.4);
}
.btn-cta:hover{transform:translateY(-2px) scale(1.03);color:var(--main);box-shadow:0 18px 34px -14px rgba(0,0,0,.5)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.16);color:#fff;font-weight:700;font-size:13.5px;
  padding:11px 22px;border-radius:999px;border:1px solid rgba(255,255,255,.5);transition:.26s;
}
.btn-ghost:hover{background:rgba(255,255,255,.28);color:#fff;transform:translateY(-2px)}

/* 友情链接 & 页脚 */
.friend-links{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:18px 20px;box-shadow:var(--shadow-soft);
}
.friend-links h3{font-size:14px;margin:0 0 8px;font-weight:800}
.friend-links .fl-body{font-size:12.5px;color:var(--muted);line-height:1.9}
footer.site-footer{
  border-top:1px solid var(--line);background:rgba(255,255,255,.6);padding:26px 0 30px;margin-top:14px;
}
.footer-grid{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:flex-start}
.footer-brand{font-size:16px;font-weight:900;color:var(--text)}
.footer-brand i{color:var(--main);margin-right:6px}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12.5px}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--main)}
.copyright{font-size:11.5px;color:var(--muted);margin-top:14px;font-family:var(--mono)}

/* --- 子页面追加 --- */
.page-head {padding:56px 0 18px;}
.page-head h1 {font-size:clamp(1.7rem,4vw,2.6rem);font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:10px 0 14px;}
.page-head h1 em {font-style:normal;color:var(--main);}
.page-head p.lead {color:var(--muted);max-width:720px;font-size:1.02rem;line-height:1.85;}
.board-wrap {padding:14px 0 26px;}
.board-toolbar {display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:22px;}
.board-filters {display:flex;flex-wrap:wrap;gap:8px;}
.filter-chip {font-size:.86rem;font-weight:600;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);cursor:pointer;transition:.22s;font-family:inherit;}
.filter-chip:hover {color:var(--main);border-color:var(--main);}
.filter-chip.active {background:var(--main);color:#fff;border-color:var(--main);box-shadow:var(--shadow-soft);}
.board-updated {font-size:.82rem;color:var(--muted);font-family:var(--mono);}
.rank-card {background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-soft);padding:22px 22px 20px;height:100%;display:flex;flex-direction:column;gap:14px;transition:.26s;position:relative;overflow:hidden;}
.rank-card::before {content:"";position:absolute;inset:0 auto 0 0;width:5px;background:linear-gradient(180deg,var(--main),var(--accent));opacity:.9;}
.rank-card:hover {transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.rank-top {display:flex;align-items:center;gap:14px;}
.rank-no {font-family:var(--mono);font-size:1.5rem;font-weight:800;line-height:1;min-width:46px;text-align:center;padding:10px 4px;border-radius:12px;background:rgba(5,150,105,.08);color:var(--main);}
.rank-no.top1 {background:linear-gradient(135deg,#059669,#14b8a6);color:#fff;}
.rank-no.top2 {background:rgba(20,184,166,.18);color:#0f766e;}
.rank-no.top3 {background:rgba(5,150,105,.14);color:#065f46;}
.rank-title {font-size:1.06rem;font-weight:700;line-height:1.4;margin:0;}
.rank-genre {font-size:.76rem;color:var(--muted);margin-top:3px;}
.rank-desc {color:var(--muted);font-size:.9rem;line-height:1.75;margin:0;flex:1;}
.rank-meta {display:flex;flex-wrap:wrap;gap:8px;border-top:1px dashed var(--line);padding-top:12px;}
.rank-tag {font-size:.74rem;font-weight:600;color:var(--main);background:rgba(5,150,105,.08);padding:5px 11px;border-radius:999px;font-family:var(--mono);}
.rank-tag.heat {color:#b45309;background:rgba(245,158,11,.13);}
.rank-tag.score {color:#0f766e;background:rgba(20,184,166,.15);}
.board-note {margin-top:26px;background:linear-gradient(135deg,rgba(5,150,105,.06),rgba(20,184,166,.08));border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 22px;font-size:.88rem;color:var(--muted);line-height:1.8;}
.board-note strong {color:var(--text);}
.rule-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:22px;}
.rule-item {background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:20px 20px 18px;box-shadow:var(--shadow-soft);transition:.24s;}
.rule-item:hover {transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.rule-item i {font-size:1.15rem;color:var(--main);background:rgba(5,150,105,.1);width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.rule-item h3 {font-size:1rem;font-weight:700;margin:0 0 8px;}
.rule-item p {font-size:.87rem;color:var(--muted);line-height:1.75;margin:0;}
.faq-list {margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.faq-item h3 {font-size:.97rem;font-weight:700;margin:0;padding:16px 20px;display:flex;align-items:center;gap:10px;cursor:pointer;}
.faq-item h3 i.fa-angle-down {margin-left:auto;color:var(--muted);transition:.25s;}
.faq-item.open h3 i.fa-angle-down {transform:rotate(180deg);color:var(--main);}
.faq-body {max-height:0;overflow:hidden;transition:.3s ease;padding:0 20px;}
.faq-item.open .faq-body {max-height:320px;padding-bottom:16px;}
.faq-body p {font-size:.88rem;color:var(--muted);line-height:1.8;margin:0;}
.cta-band {margin:40px 0 10px;background:linear-gradient(135deg,var(--main),var(--accent));border-radius:var(--radius-lg);padding:38px 30px;text-align:center;color:#fff;box-shadow:var(--shadow-soft);}
.cta-band h2 {font-size:clamp(1.2rem,3vw,1.6rem);font-weight:800;margin:0 0 10px;}
.cta-band p {opacity:.92;font-size:.94rem;margin:0 auto 20px;max-width:560px;line-height:1.8;}
.cta-btns {display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.btn-main {background:#fff;color:var(--main);font-weight:700;font-size:.92rem;padding:11px 26px;border-radius:999px;text-decoration:none;transition:.22s;}
.btn-main:hover {transform:translateY(-2px);box-shadow:0 12px 26px -10px rgba(0,0,0,.35);color:var(--main);}
.rank-card {padding:18px 16px;}
.rank-no {min-width:40px;font-size:1.25rem;}

/* --- 子页面追加 --- */
.about-page {padding:64px 0 24px;}
.about-hero {position:relative;overflow:hidden;background:linear-gradient(160deg,#ffffff 0%,#f0fdfa 62%,#e3fbf5 100%);border:1px solid var(--line);border-radius:var(--radius-lg);padding:54px 42px;box-shadow:var(--shadow-soft);}
.about-hero::after {content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(20,184,166,.24),rgba(5,150,105,.05) 70%,transparent 72%);pointer-events:none;}
.about-hero h1 {font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800;color:var(--text);line-height:1.28;margin:14px 0 16px;letter-spacing:-.5px;}
.about-hero h1 em {font-style:normal;color:var(--main);}
.about-hero p {color:var(--muted);font-size:1.02rem;line-height:1.9;max-width:760px;margin:0;}
.ab-stat-row {display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.ab-stat {flex:1 1 150px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow-soft);}
.ab-stat strong {display:block;font-size:1.5rem;font-weight:800;color:var(--main);line-height:1.2;}
.ab-stat span {font-size:.85rem;color:var(--muted);}
.ab-block {margin-top:56px;}
.ab-block h2 {font-size:clamp(1.3rem,2.4vw,1.72rem);font-weight:800;color:var(--text);margin:0 0 10px;letter-spacing:-.3px;}
.ab-block h2 .dot {color:var(--accent);}
.ab-sub {color:var(--muted);font-size:.97rem;line-height:1.85;margin:0 0 26px;max-width:820px;}
.ab-card {background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:26px 24px;height:100%;box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease;}
.ab-card:hover {transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.ab-ico {width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.15rem;color:#fff;background:linear-gradient(135deg,var(--main),var(--accent));margin-bottom:16px;}
.ab-card h3 {font-size:1.06rem;font-weight:700;color:var(--text);margin:0 0 10px;}
.ab-card p {font-size:.92rem;line-height:1.8;color:var(--muted);margin:0;}
.ab-list {list-style:none;padding:0;margin:0;}
.ab-list li {display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);color:var(--muted);font-size:.94rem;line-height:1.75;}
.ab-list li:last-child {border-bottom:none;}
.ab-list li i {color:var(--main);margin-top:4px;flex:0 0 auto;}
.ab-list li b {color:var(--text);font-weight:600;}
.ab-panel {background:linear-gradient(160deg,#ffffff,#f2fdfa);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 30px;box-shadow:var(--shadow-soft);}
.ab-quote {border-left:4px solid var(--accent);padding:6px 0 6px 18px;color:var(--text);font-size:1rem;line-height:1.9;font-weight:500;}
.ab-faq {border:1px solid var(--line);border-radius:var(--radius-md);background:var(--card);box-shadow:var(--shadow-soft);overflow:hidden;}
.ab-faq details {padding:20px 24px;border-bottom:1px solid var(--line);}
.ab-faq details:last-child {border-bottom:none;}
.ab-faq summary {cursor:pointer;font-weight:600;color:var(--text);font-size:.98rem;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;}
.ab-faq summary::-webkit-details-marker {display:none;}
.ab-faq summary::after {content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;color:var(--accent);transition:transform .25s ease;}
.ab-faq details[open] summary::after {transform:rotate(180deg);}
.ab-faq p {margin:12px 0 0;color:var(--muted);font-size:.92rem;line-height:1.85;}
.ab-cta {margin-top:56px;background:linear-gradient(135deg,var(--main),var(--accent));border-radius:var(--radius-lg);padding:44px 36px;color:#fff;box-shadow:var(--shadow-hover);text-align:center;}
.ab-cta h2 {font-size:clamp(1.3rem,2.6vw,1.8rem);font-weight:800;margin:0 0 12px;color:#fff;}
.ab-cta p {margin:0 auto 24px;max-width:640px;color:rgba(255,255,255,.9);font-size:.96rem;line-height:1.85;}
.ab-cta .ab-btn {display:inline-flex;align-items:center;gap:9px;background:#fff;color:var(--main);font-weight:700;padding:13px 30px;border-radius:999px;text-decoration:none;font-size:.95rem;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 10px 26px -12px rgba(0,0,0,.4);}
.ab-cta .ab-btn:hover {transform:translateY(-3px);color:var(--main);}
.ab-meta {display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.ab-tag {font-family:var(--mono);font-size:.76rem;color:var(--main);background:rgba(5,150,105,.08);border:1px solid var(--line);border-radius:999px;padding:5px 13px;}
.about-page {padding:36px 0 16px;}
.about-hero {padding:34px 22px;}
.ab-panel {padding:24px 20px;}
.ab-cta {padding:32px 20px;}
.ab-block {margin-top:42px;}

/* --- 子页面追加 --- */
.policy-hero {
    padding:64px 0 34px;
    position:relative;
    overflow:hidden;
  }
.policy-hero::after {
    content:"";
    position:absolute;
    inset:auto -10% -60% -10%;
    height:260px;
    background:radial-gradient(60% 100% at 50% 0%,rgba(20,184,166,.16),transparent 70%);
    pointer-events:none;
  }
.policy-hero h1 {
    font-size:clamp(1.7rem,4vw,2.6rem);
    font-weight:800;
    letter-spacing:-.02em;
    margin:14px 0 14px;
    line-height:1.25;
  }
.policy-hero h1 em {
    font-style:normal;
    color:var(--main);
  }
.policy-meta {
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:18px;
  }
.meta-chip {
    display:inline-flex;
    align-items:center;
    gap:7px;
    font-size:.82rem;
    color:var(--muted);
    background:var(--card);
    border:1px solid var(--line);
    padding:7px 14px;
    border-radius:999px;
    box-shadow:var(--shadow-soft);
  }
.meta-chip i {color:var(--accent);}
.policy-layout {
    display:grid;
    grid-template-columns:250px 1fr;
    gap:34px;
    align-items:start;
    padding-bottom:70px;
  }
.policy-toc {
    position:sticky;
    top:24px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:20px 18px;
    box-shadow:var(--shadow-soft);
  }
.policy-toc h4 {
    font-size:.78rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--muted);
    margin:0 0 12px;
    font-weight:700;
  }
.policy-toc ul {list-style:none;margin:0;padding:0;}
.policy-toc li {margin-bottom:2px;}
.policy-toc a {
    display:block;
    font-size:.9rem;
    color:var(--text);
    text-decoration:none;
    padding:8px 11px;
    border-radius:10px;
    border-left:2px solid transparent;
    transition:.2s;
  }
.policy-toc a:hover {
    background:rgba(5,150,105,.07);
    border-left-color:var(--main);
    color:var(--main);
  }
.policy-body {
    display:flex;
    flex-direction:column;
    gap:22px;
  }
.policy-card {
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:28px 30px;
    box-shadow:var(--shadow-soft);
  }
.policy-card h2 {
    font-size:1.22rem;
    font-weight:800;
    margin:0 0 6px;
    letter-spacing:-.01em;
    display:flex;
    align-items:center;
    gap:11px;
  }
.policy-card h2 .num {
    flex:none;
    width:30px;height:30px;
    display:inline-grid;place-items:center;
    font-size:.85rem;
    font-weight:800;
    color:#fff;
    border-radius:10px;
    background:linear-gradient(135deg,var(--main),var(--accent));
    font-family:var(--mono);
  }
.policy-card h3 {
    font-size:1rem;
    font-weight:700;
    margin:20px 0 8px;
    color:var(--main);
  }
.policy-card p {
    margin:10px 0;
    color:var(--text);
    font-size:.95rem;
  }
.policy-card p.lead-note {
    color:var(--muted);
    font-size:.9rem;
  }
.policy-card ul {
    margin:10px 0;
    padding-left:0;
    list-style:none;
  }
.policy-card ul li {
    position:relative;
    padding-left:24px;
    margin:9px 0;
    font-size:.95rem;
  }
.policy-card ul li::before {
    content:"\f00c";
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    position:absolute;
    left:2px;
    top:2px;
    font-size:.72rem;
    color:var(--accent);
  }
.data-table {
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    margin:16px 0 6px;
    font-size:.9rem;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    overflow:hidden;
  }
.data-table th {
    background:rgba(5,150,105,.08);
    color:var(--text);
    text-align:left;
    padding:12px 14px;
    font-weight:700;
    font-size:.85rem;
    border-bottom:1px solid var(--line);
  }
.data-table td {
    padding:12px 14px;
    border-bottom:1px solid var(--line);
    color:var(--muted);
    vertical-align:top;
  }
.data-table tr:last-child td {border-bottom:none;}
.data-table td strong {color:var(--text);font-weight:600;}
.rights-grid {
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
    gap:14px;
    margin-top:16px;
  }
.right-item {
    background:rgba(20,184,166,.06);
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    padding:16px 16px 14px;
  }
.right-item i {
    color:var(--main);
    font-size:1.05rem;
    margin-bottom:8px;
    display:block;
  }
.right-item h5 {
    font-size:.92rem;
    font-weight:700;
    margin:0 0 5px;
  }
.right-item p {
    margin:0;
    font-size:.82rem;
    color:var(--muted);
    line-height:1.6;
  }
.highlight-box {
    margin-top:18px;
    background:linear-gradient(135deg,rgba(5,150,105,.08),rgba(20,184,166,.06));
    border:1px solid var(--line);
    border-left:3px solid var(--main);
    border-radius:var(--radius-sm);
    padding:16px 18px;
    font-size:.9rem;
    color:var(--text);
  }
.highlight-box strong {color:var(--main);}
.contact-row {
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:16px;
  }
.contact-pill {
    display:inline-flex;
    align-items:center;
    gap:9px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:999px;
    padding:9px 18px;
    font-size:.88rem;
    color:var(--text);
    box-shadow:var(--shadow-soft);
  }
.contact-pill i {color:var(--accent);}
.policy-footer-note {
    text-align:center;
    color:var(--muted);
    font-size:.83rem;
    padding:0 0 60px;
  }
.policy-layout {grid-template-columns:1fr;gap:22px;}
.policy-toc {position:static;}
.policy-card {padding:22px 20px;}