:root{
  --main:#0891b2;
  --accent:#0ea5e9;
  --bg:#ecfeff;
  --text:#083344;
  --line:rgba(8,145,178,.22);
  --soft:rgba(8,145,178,.07);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--main);text-decoration:none;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}

/* 阅读进度条 */
#readProgress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--main),var(--accent));
  z-index:2000;
  transition:width .08s linear;
}

/* 导航 */
.nav-shell{
  position:sticky;top:0;z-index:1500;
  background:rgba(236,254,255,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;
}
.brand{
  font-weight:900;
  font-size:1.35rem;
  letter-spacing:.02em;
  color:var(--text);
  display:flex;align-items:center;gap:10px;
}
.brand:hover{color:var(--main);}
.brand .cp{
  width:9px;height:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--main),var(--accent));
  flex:0 0 auto;
}
.nav-links{
  display:flex;align-items:center;gap:34px;
  list-style:none;margin:0;padding:0;
}
.nav-links a{
  color:var(--text);
  font-size:.94rem;
  font-weight:600;
  position:relative;
  padding-bottom:3px;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--main);
  transition:width .28s ease;
}
.nav-links a:hover::after{width:100%;}
.nav-links a:hover{color:var(--main);}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line);
  color:var(--text);border-radius:10px;padding:7px 12px;font-size:1.05rem;
}

/* Hero 杂志封面式 */
.hero{
  position:relative;
  max-width:1240px;
  margin:44px auto 0;
  padding:0 24px;
}
.hero-frame{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  border:1px solid var(--line);
  min-height:clamp(420px,58vh,620px);
  display:flex;align-items:flex-end;
  isolation:isolate;
}
.hero-frame img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:-2;
  filter:saturate(.92);
}
.hero-frame::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,51,68,.18) 0%,rgba(8,51,68,.62) 58%,rgba(8,51,68,.88) 100%);
}
.hero-glow{
  position:absolute;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,165,233,.55),transparent 68%);
  filter:blur(60px);
  z-index:-1;
  top:-120px;right:-80px;
  pointer-events:none;
}
.hero-copy{
  padding:clamp(30px,5vw,64px);
  color:#f0fdff;
  max-width:840px;
}
.hero-eyebrow{
  display:inline-block;
  font-size:.76rem;font-weight:700;letter-spacing:.24em;
  text-transform:uppercase;
  color:#a5f3fc;
  border:1px solid rgba(165,243,252,.5);
  padding:6px 14px;border-radius:100px;
  margin-bottom:26px;
}
.hero-title{
  font-size:clamp(2.4rem,5.6vw,4rem);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.02em;
  margin:0 0 22px;
}
.hero-title em{
  font-style:normal;
  color:#67e8f9;
}
.hero-lead{
  font-size:clamp(1rem,1.6vw,1.12rem);
  font-weight:300;
  color:rgba(240,253,255,.88);
  max-width:620px;
  margin:0 0 30px;
}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);
  color:#fff;font-weight:700;
  padding:13px 28px;border-radius:100px;
  border:1px solid transparent;
  transition:.28s ease;
}
.hero-cta:hover{
  background:transparent;border-color:#a5f3fc;color:#a5f3fc;
  transform:translateX(3px);
}

/* 通用区块 */
.section{
  max-width:1180px;
  margin:0 auto;
  padding:clamp(64px,9vw,110px) 24px;
}
.sec-head{
  border-top:1px solid var(--line);
  padding-top:30px;
  margin-bottom:48px;
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;
}
.sec-title{
  font-size:clamp(1.8rem,3.4vw,2.6rem);
  font-weight:800;
  letter-spacing:-.02em;
  margin:0;
}
.sec-note{
  font-size:.86rem;font-weight:500U;
  color:rgba(8,51,68,.55);
  letter-spacing:.14em;text-transform:uppercase;
  margin:0;
}

/* 特色卡片 + 标签页 */
.tabs{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-bottom:40px;
}
.tab-btn{
  font-family:inherit;
  background:transparent;
  border:1px solid var(--line);
  color:var(--text);
  font-weight:600;font-size:.9rem;
  padding:10px 22px;border-radius:100px;
  cursor:pointer;
  transition:.25s ease;
}
.tab-btn:hover{border-color:var(--accent);color:var(--main);}
.tab-btn.active{
  background:var(--main);
  border-color:var(--main);
  color:#f0fdff;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(258px,1fr));
  gap:26px;
}
.f-card{
  border:1px solid var(--line);
  border-radius:18px;
  padding:32px 28px;
  background:transparent;
  transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.f-card:hover{
  transform:scale(1.025);
  border-color:var(--accent);
  background:var(--soft);
}
.f-icon{
  font-size:1.4rem;
  color:var(--main);
  margin-bottom:20px;
  display:block;
}
.f-card h3{
  font-size:1.14rem;font-weight:800;
  margin:0 0 12px;
  letter-spacing:-.01em;
}
.f-card p{
  margin:0;
  font-size:.92rem;
  font-weight:300;
  color:rgba(8,51,68,.78);
}
.tab-panel{display:none;}
.tab-panel.active{display:block; animation:fadeUp .5s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}

/* 长文 + 时间线 */
.longtext{
  display:grid;
  grid-template-columns:1fr 1.5fr;
  gap:clamp(34px,6vw,80px);
}
.lt-aside h2{
  font-size:clamp(2rem,4vw,3rem);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.03em;
  margin:0 0 24px;
}
.lt-aside p{
  font-weight:300;
  color:rgba(8,51,68,.75);
  font-size:.96rem;
}
.lt-body p{
  font-size:1rem;
  font-weight:300;
  color:rgba(8,51,68,.85);
  margin:0 0 22px;
}
.lt-body p strong{font-weight:700;color:var(--text);}
.timeline{
  position:relative;
  margin-top:46px;
  padding-left:34px;
  border-left:1px solid var(--line);
}
.tl-item{
  position:relative;
  padding-bottom:38px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;left:-39px;top:8px;
  width:9px;height:9px;border-radius:50%;
  background:var(--bg);
  border:2px solid var(--main);
}
.tl-year{
  font-size:.78rem;font-weight:800;
  letter-spacing:.2em;
  color:var(--main);
  display:block;margin-bottom:6px;
}
.tl-item h4{
  font-size:1.05rem;font-weight:700;margin:0 0 8px;
}
.tl-item p{
  margin:0;font-size:.92rem;font-weight:300;
  color:rgba(8,51,68,.76);
}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  background:none;border:none;
  font-family:inherit;
  text-align:left;
  font-size:1.02rem;font-weight:700;
  color:var(--text);
  padding:24px 44px 24px 0;
  position:relative;
  cursor:pointer;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--main);}
.faq-q::after{
  content:"\002B";
  position:absolute;right:6px;top:50%;
  transform:translateY(-50%);
  font-size:1.3rem;font-weight:300;
  color:var(--main);
  transition:transform .3s ease;
}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .38s ease;
}
.faq-a p{
  margin:0;padding:0 40px 26px 0;
  font-weight:300;font-size:.95rem;
  color:rgba(8,51,68,.8);
}

/* CTA */
.cta-band{
  max-width:1180px;
  margin:0 auto 0;
  padding:0 24px;
}
.cta-inner{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:26px;
  padding:clamp(52px,8vw,92px) clamp(26px,5vw,72px);
  text-align:center;
  isolation:isolate;
}
.cta-inner::before{
  content:"";
  position:absolute;z-index:-1;
  width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,165,233,.38),transparent 66%);
  filter:blur(70px);
  left:-140px;bottom:-260px;
}
.cta-inner h2{
  font-size:clamp(1.9rem,4.4vw,3rem);
  font-weight:900;letter-spacing:-.03em;
  line-height:1.1;margin:0 0 18px;
}
.cta-inner p{
  font-weight:300;font-size:1rem;
  color:rgba(8,51,68,.78);
  max-width:560px;margin:0 auto 32px;
}
.cta-btn{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--main);
  color:var(--main);
  font-weight:700;font-size:.96rem;
  padding:14px 34px;border-radius:100px;
  transition:.28s ease;
}
.cta-btn:hover{
  background:var(--main);color:#f0fdff;
  transform:translateY(-2px);
}

/* 友链 */
.friendzone{
  max-width:1180px;margin:0 auto;
  padding:clamp(56px,7vw,86px) 24px 40px;
}
.friendzone h3{
  font-size:.82rem;font-weight:800;
  letter-spacing:.24em;text-transform:uppercase;
  color:rgba(8,51,68,.55);
  margin:0 0 18px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.friendlinks{
  font-size:.92rem;font-weight:400;
  color:rgba(8,51,68,.72);
  word-break:break-all;
}

/* 页脚 */
footer{
  border-top:1px solid var(--line);
  margin-top:30px;
}
.foot-inner{
  max-width:1180px;margin:0 auto;
  padding:48px 24px 56px;
  display:flex;flex-wrap:wrap;
  justify-content:space-between;align-items:flex-start;gap:36px;
}
.foot-brand{
  font-weight:900;font-size:1.12rem;
  letter-spacing:.01em;
  display:flex;align-items:center;gap:9px;
}
.foot-brand .cp{
  width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--main),var(--accent));
}
.foot-desc{
  font-weight:300;font-size:.86rem;
  color:rgba(8,51,68,.62);
  margin-top:12px;max-width:340px;
}
.foot-nav{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  font-size:.88rem;font-weight:600;
}
.foot-nav a{color:var(--text);}
.foot-nav a:hover{color:var(--main);}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:22px 24px 34px;
  text-align:center;
  font-size:.82rem;font-weight:300;
  color:rgba(8,51,68,.6);
}

/* 滚动渐显 */
.reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .7s ease,transform .7s ease;
  will-change:opacity,transform;
}
.reveal.show{opacity:1;transform:none;}

/* 响应式 */
@media(max-width:900px){
  .longtext{grid-template-columns:1fr;}
}
@media(max-width:780px){
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background:rgba(236,254,255,.98);
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;
    transition:max-height .35s ease;
  }
  .nav-links.open{max-height:420px;}
  .nav-links li{width:100%;}
  .nav-links a{display:block;padding:15px 24px;border-top:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-inner{position:relative;padding:16px 20px;}
  .hero{margin-top:24px;}
  .hero-frame{border-radius:18px;}
}

/* --- 子页面追加 --- */
.guide-steps {
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:18px;
    margin-top:26px;
  }
.guide-step {
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    padding:22px 20px;
    position:relative;
    transition:transform .25s ease, box-shadow .25s ease;
  }
.guide-step:hover {
    transform:translateY(-4px);
    box-shadow:0 14px 30px rgba(8,145,178,.14);
  }
.guide-step .num {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;height:34px;
    border-radius:50%;
    background:var(--main);
    color:#fff;
    font-weight:800;
    font-size:.95rem;
    margin-bottom:12px;
  }
.guide-step h3 {
    font-size:1.05rem;
    font-weight:700;
    margin:0 0 8px;
    color:var(--text);
  }
.guide-step p {
    margin:0;
    font-size:.9rem;
    line-height:1.7;
    color:rgba(8,51,68,.78);
  }
.guide-note {
    margin-top:22px;
    background:var(--soft);
    border-left:4px solid var(--main);
    border-radius:0 12px 12px 0;
    padding:16px 20px;
    font-size:.92rem;
    line-height:1.8;
    color:rgba(8,51,68,.85);
  }
.schedule-table {
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    margin-top:24px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
    font-size:.93rem;
  }
.schedule-table thead th {
    background:var(--main);
    color:#fff;
    font-weight:600;
    padding:14px 16px;
    text-align:left;
    white-space:nowrap;
  }
.schedule-table tbody td {
    padding:13px 16px;
    border-top:1px solid var(--line);
    color:rgba(8,51,68,.85);
    vertical-align:top;
  }
.schedule-table tbody tr:nth-child(even) {
    background:rgba(8,145,178,.04);
  }
.schedule-table tbody tr:hover {
    background:rgba(8,145,178,.09);
  }
.tag-pill {
    display:inline-block;
    padding:2px 10px;
    border-radius:999px;
    background:var(--soft);
    color:var(--main);
    font-size:.78rem;
    font-weight:600;
    margin-right:6px;
    white-space:nowrap;
  }
.faq-item h3 {
    font-size:1rem;
    font-weight:700;
    margin:0 0 10px;
    display:flex;
    gap:10px;
    align-items:flex-start;
    color:var(--text);
  }
.faq-item h3 i {
    color:var(--accent);
    margin-top:3px;
    font-size:.9rem;
  }
.faq-item p {
    margin:0;
    font-size:.92rem;
    line-height:1.85;
    color:rgba(8,51,68,.8);
  }
.guide-cta {
    margin-top:40px;
    text-align:center;
    padding:36px 24px;
    border-radius:18px;
    background:linear-gradient(135deg, rgba(8,145,178,.12), rgba(14,165,233,.08));
    border:1px solid var(--line);
  }
.guide-cta p {
    margin:0 0 18px;
    font-size:1rem;
    color:rgba(8,51,68,.85);
  }
.guide-steps {grid-template-columns:repeat(2,1fr);}
.guide-steps {grid-template-columns:1fr;}
.schedule-table {font-size:.86rem;}
.schedule-table thead th,
    .schedule-table tbody td {padding:11px 12px;}

/* --- 子页面追加 --- */
.about-hero {padding:56px 0 20px}
.about-hero .hero-copy {max-width:820px}
.stat-row {display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.stat-box {background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.stat-box b {display:block;font-size:26px;font-weight:800;color:var(--main);line-height:1.2}
.stat-box span {font-size:13px;color:var(--text);opacity:.75}
.about-long p {line-height:1.95;margin:0 0 16px}
.about-long h3 {font-size:19px;font-weight:700;margin:28px 0 10px;color:var(--text)}
.about-long h3 .em {color:var(--main)}
.about-long ul {margin:0 0 18px;padding-left:20px}
.about-long li {line-height:1.9;margin-bottom:6px}
.faq-q i {color:var(--main);transition:transform .25s ease}
.faq-item.open .faq-q i {transform:rotate(180deg)}
.faq-item.open .faq-a {display:block}
.mini-card {background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;height:100%}
.mini-card .f-icon {color:var(--main);font-size:22px;margin-bottom:12px}
.mini-card h4 {font-size:16px;font-weight:700;margin:0 0 8px;color:var(--text)}
.mini-card p {margin:0;font-size:14px;line-height:1.85;color:var(--text);opacity:.82}
.stat-row {grid-template-columns:1fr}
.about-hero {padding:36px 0 10px}

/* --- 子页面追加 --- */
.rank-tabs {display:flex;flex-wrap:wrap;gap:.6rem;margin:1.6rem 0 1.8rem}
.rank-btn {font:inherit;font-size:.92rem;font-weight:600;cursor:pointer;padding:.55rem 1.15rem;border-radius:999px;border:1px solid var(--line);background:var(--soft);color:var(--text);transition:.2s}
.rank-btn:hover {border-color:var(--main);color:var(--main)}
.rank-btn.is-active {background:var(--main);border-color:var(--main);color:#fff}
.rank-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.1rem}
.rank-item {display:flex;gap:1rem;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem 1.15rem;transition:.22s}
.rank-item:hover {transform:translateY(-3px);border-color:var(--main);box-shadow:0 12px 28px rgba(8,145,178,.12)}
.rank-no {flex:0 0 44px;height:44px;display:grid;place-items:center;border-radius:12px;font-weight:800;font-size:1.05rem;background:var(--soft);color:var(--main)}
.rank-item:nth-child(1) .rank-no {background:linear-gradient(135deg,#0891b2,#0ea5e9);color:#fff}
.rank-item:nth-child(2) .rank-no {background:rgba(14,165,233,.22);color:var(--main)}
.rank-item:nth-child(3) .rank-no {background:rgba(8,145,178,.14);color:var(--main)}
.rank-body {min-width:0}
.rank-title {font-weight:700;font-size:1.02rem;margin:0 0 .3rem;color:var(--text)}
.rank-meta {font-size:.8rem;color:var(--main);font-weight:600;margin-bottom:.35rem;letter-spacing:.02em}
.rank-desc {margin:0;font-size:.9rem;line-height:1.65;color:var(--text);opacity:.82}
.rank-badge {display:inline-block;font-size:.72rem;font-weight:700;padding:.12rem .5rem;border-radius:6px;background:var(--soft);color:var(--main);margin-left:.4rem;vertical-align:middle}
.rule-list {list-style:none;padding:0;margin:0;display:grid;gap:.85rem}
.rule-list li {display:flex;gap:.75rem;align-items:flex-start;font-size:.95rem;line-height:1.7}
.rule-list i {color:var(--main);margin-top:.25rem;flex:0 0 auto}
.rank-no {flex-basis:38px;height:38px;font-size:.95rem}
.rank-item {padding:.85rem}

/* --- 子页面追加 --- */
.policy-wrap {max-width:900px;margin:0 auto}
.policy-block {background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 28px;margin-bottom:20px;box-shadow:0 10px 30px -22px rgba(8,145,178,.5)}
.policy-block h2 {font-size:1.22rem;font-weight:800;color:var(--text);margin:0 0 14px;display:flex;align-items:center;gap:10px;line-height:1.35}
.policy-block h2 i {color:var(--main);font-size:1rem}
.policy-block h3 {font-size:1rem;font-weight:700;color:var(--main);margin:18px 0 8px}
.policy-block p {color:var(--text);opacity:.86;line-height:1.85;margin:0 0 12px;font-size:.96rem}
.policy-block ul {margin:0 0 12px;padding-left:0;list-style:none}
.policy-block ul li {position:relative;padding-left:22px;margin-bottom:9px;line-height:1.8;color:var(--text);opacity:.86;font-size:.96rem}
.policy-block ul li::before {content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:2px;color:var(--accent);font-size:.78rem}
.policy-meta {display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.policy-meta span {background:var(--soft);border:1px solid var(--line);color:var(--main);font-size:.82rem;font-weight:600;padding:6px 14px;border-radius:999px}
.policy-tip {background:var(--soft);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:14px 18px;margin:14px 0;font-size:.92rem;line-height:1.8;color:var(--text)}
.policy-tip strong {color:var(--main)}
.policy-table {width:100%;border-collapse:collapse;margin:12px 0 6px;font-size:.92rem}
.policy-table th,.policy-table td {text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:top;line-height:1.7}
.policy-table th {background:var(--soft);color:var(--main);font-weight:700;font-size:.88rem}
.policy-table tr:last-child td {border-bottom:none}
.policy-navlinks {display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.policy-navlinks a {display:inline-flex;align-items:center;gap:7px;background:var(--soft);border:1px solid var(--line);color:var(--main);text-decoration:none;font-size:.9rem;font-weight:600;padding:9px 16px;border-radius:999px;transition:.2s}
.policy-navlinks a:hover {background:var(--main);color:#fff;border-color:var(--main)}
.policy-block {padding:20px 18px;border-radius:14px}
.policy-block h2 {font-size:1.08rem}
.policy-table th,.policy-table td {padding:9px 10px;font-size:.85rem}