/* roulang page: index */
:root{
  --ink:#0f1329;
  --navy:#1a1f3d;
  --navy-2:#232a52;
  --navy-3:#2d3566;
  --gold:#ffb400;
  --gold-2:#ffd76a;
  --gold-deep:#e39a00;
  --cyan:#43e8ff;
  --bg:#f4f5fb;
  --surface:#ffffff;
  --surface-2:#fafbff;
  --text:#1b2038;
  --muted:#6b7285;
  --line:#e5e8f3;
  --radius-sm:10px;
  --radius:14px;
  --radius-lg:22px;
  --radius-xl:28px;
  --shadow-xs:0 1px 3px rgba(19,24,54,.06);
  --shadow-sm:0 4px 14px rgba(19,24,54,.07);
  --shadow-md:0 14px 34px rgba(19,24,54,.10);
  --shadow-gold:0 12px 26px rgba(255,180,0,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(255,180,0,.35)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(67,232,255,.65);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,41,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));
  color:#251a00;font-weight:800;font-size:19px;
  box-shadow:0 6px 16px rgba(255,180,0,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.52);letter-spacing:.14em;margin-top:4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.74);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(255,180,0,.14)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-2),var(--gold) 62%,var(--gold-deep));
  color:#251a00;box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,180,0,.38)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.26);
}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* Hero */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--navy);
  padding:88px 0 128px;
  clip-path:polygon(0 0,100% 0,100% 93%,0 100%);
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;transform:scale(1.04)}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(90% 70% at 12% 6%,rgba(67,232,255,.20),transparent 58%),
    radial-gradient(70% 60% at 92% 22%,rgba(255,180,0,.18),transparent 60%),
    linear-gradient(158deg,rgba(15,19,41,.94),rgba(26,31,61,.90) 52%,rgba(35,42,82,.76));
}
.hero-inner{position:relative;z-index:3}
.hero-copy{max-width:940px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--gold-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.35);
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
.hero h1{
  margin-top:22px;font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.02em;
  color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.35);
}
.hero h1 span{color:var(--gold-2)}
.hero-lead{
  margin-top:20px;max-width:820px;color:rgba(255,255,255,.82);
  font-size:clamp(15px,1.2vw,17px);line-height:1.92;
}
.hero-points{
  margin-top:28px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 22px;max-width:760px;
}
.hero-points li{
  display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:12px;padding:11px 14px;
}
.hero-points li i{
  flex-shrink:0;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#2a1d00;
  font-style:normal;font-size:12px;font-weight:800;margin-top:2px;
}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-trust{
  margin-top:30px;display:flex;flex-wrap:wrap;gap:12px 26px;
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(67,232,255,.85)}

/* 数据徽章条 */
.stat-bar{position:relative;z-index:9;margin-top:-64px}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);border:1px solid var(--line);
}
.stat-cell{background:var(--surface);padding:26px 22px;text-align:center}
.stat-cell strong{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--navy);letter-spacing:-.02em}
.stat-cell strong em{font-style:normal;color:var(--gold-deep);font-size:.62em;margin-left:2px}
.stat-cell span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}

/* 板块 */
.section{padding:78px 0}
.section--alt{background:var(--surface)}
.section--dark{background:linear-gradient(165deg,var(--ink),var(--navy) 58%,var(--navy-2));color:#fff}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--gold-deep);text-transform:uppercase;margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--gold-2)}
.section-title{font-size:clamp(23px,2.7vw,33px);font-weight:800;color:var(--navy)}
.section--dark .section-title{color:#fff}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9}
.section--dark .section-desc{color:rgba(255,255,255,.74)}

/* 卡片通用 */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.35)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,180,0,.14);color:#8a5c00;border:1px solid rgba(255,180,0,.32);
}
.chip-soft{background:rgba(35,42,82,.07);color:var(--navy-2);border-color:rgba(35,42,82,.12)}
.chip-cyan{background:rgba(67,232,255,.14);color:#0a6c7d;border-color:rgba(67,232,255,.36)}

/* 机制卡组 */
.mechanic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.mechanic-card{overflow:hidden;display:flex;flex-direction:column}
.mechanic-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.mechanic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.mechanic-card:hover .mechanic-thumb img{transform:scale(1.06)}
.mechanic-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,19,41,0) 40%,rgba(15,19,41,.72))}
.mechanic-thumb .thumb-tag{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--gold-2);
}
.mechanic-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.mechanic-body h3{font-size:19px;font-weight:800;color:var(--navy)}
.mechanic-body p{font-size:14.5px;color:var(--muted);line-height:1.85}
.mechanic-meta{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px}

/* 资讯双栏 */
.split{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:32px;align-items:start}
.feed-list{display:flex;flex-direction:column;gap:18px}
.feed-item{
  display:grid;grid-template-columns:186px minmax(0,1fr);gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:16px;box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feed-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.32)}
.feed-thumb{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--surface-2)}
.feed-thumb img{width:100%;height:100%;object-fit:cover}
.feed-body{display:flex;flex-direction:column;gap:9px;min-width:0}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.feed-body h3{font-size:17px;font-weight:800;color:var(--navy);line-height:1.5}
.feed-body h3 a:hover{color:var(--gold-deep)}
.feed-body p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.link-more{font-size:13.5px;font-weight:700;color:var(--gold-deep);display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(4px)}
.empty-note{
  padding:34px 24px;border:1px dashed rgba(35,42,82,.24);border-radius:var(--radius-lg);
  background:var(--surface-2);color:var(--muted);font-size:14.5px;text-align:center;
}

/* 侧栏热榜 */
.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}
.side-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.side-head h3{font-size:16.5px;font-weight:800;color:var(--navy)}
.side-head span{font-size:12px;color:var(--muted);letter-spacing:.1em}
.rank-list{padding:8px 10px 14px}
.rank-item{display:flex;gap:12px;padding:12px 10px;border-radius:12px;transition:background .2s ease}
.rank-item:hover{background:var(--surface-2)}
.rank-no{
  flex-shrink:0;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;color:var(--navy-2);background:rgba(35,42,82,.08);
}
.rank-item:nth-child(1) .rank-no{background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#251a00}
.rank-item:nth-child(2) .rank-no{background:rgba(255,180,0,.22);color:#8a5c00}
.rank-item:nth-child(3) .rank-no{background:rgba(67,232,255,.24);color:#0a6c7d}
.rank-body{min-width:0}
.rank-body a{font-size:14.5px;font-weight:600;color:var(--text);line-height:1.6;display:block}
.rank-body a:hover{color:var(--gold-deep)}
.rank-body small{display:block;margin-top:4px;font-size:12px;color:var(--muted)}
.side-note{padding:16px 20px 20px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);line-height:1.8}

/* 专题条 */
.topic-rail{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.topic-card{
  position:relative;padding:22px 20px;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(165deg,var(--navy-2),var(--ink));
  color:#fff;border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;
}
.topic-card:hover{transform:translateY(-5px);box-shadow:0 18px 34px rgba(15,19,41,.28)}
.topic-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,0,.34),transparent 70%);
}
.topic-card span{display:inline-block;font-size:11.5px;letter-spacing:.14em;color:var(--gold-2);font-weight:700}
.topic-card h3{margin-top:10px;font-size:16.5px;font-weight:800;color:#fff;position:relative;z-index:2}
.topic-card p{margin-top:9px;font-size:13px;color:rgba(255,255,255,.66);line-height:1.75;position:relative;z-index:2}

/* 场景矩阵 */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-card{padding:24px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.scene-card i{
  display:grid;place-items:center;width:42px;height:42px;border-radius:13px;font-style:normal;
  background:linear-gradient(140deg,rgba(255,180,0,.22),rgba(67,232,255,.18));color:var(--navy);
  font-weight:800;font-size:16px;border:1px solid rgba(35,42,82,.08);
}
.scene-card h3{margin-top:16px;font-size:17px;font-weight:800;color:var(--navy)}
.scene-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.85}

/* 节奏演示 */
.demo{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center}
.demo-figure{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:4/3}
.demo-figure img{width:100%;height:100%;object-fit:cover}
.demo-figure .demo-badge{
  position:absolute;left:20px;top:20px;padding:8px 15px;border-radius:999px;
  background:rgba(15,19,41,.82);color:var(--gold-2);font-size:12.5px;font-weight:700;letter-spacing:.08em;
  border:1px solid rgba(255,180,0,.4);
}
.steps{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.step{display:flex;gap:16px;padding:16px 18px;border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--line)}
.step em{
  flex-shrink:0;font-style:normal;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#2a1d00;font-weight:800;font-size:13.5px;
}
.step h4{font-size:15.5px;font-weight:800;color:var(--navy)}
.step p{margin-top:5px;font-size:13.5px;color:var(--muted);line-height:1.8}

/* 数据条 */
.bar-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 30px;box-shadow:var(--shadow-sm)}
.bar-row{display:grid;grid-template-columns:120px minmax(0,1fr) 62px;gap:16px;align-items:center;padding:14px 0;border-bottom:1px dashed var(--line)}
.bar-row:last-child{border-bottom:none}
.bar-row strong{font-size:14px;font-weight:700;color:var(--navy)}
.bar-track{height:12px;border-radius:999px;background:rgba(35,42,82,.08);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-2),var(--gold));box-shadow:0 2px 8px rgba(255,180,0,.4)}
.bar-fill.cyan{background:linear-gradient(90deg,rgba(67,232,255,.85),#1fb9d6)}
.bar-row span{font-size:13.5px;font-weight:700;color:var(--gold-deep);text-align:right}

/* 案例卡 */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.case-card{padding:24px 22px;border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.case-top strong{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.case-card h3{margin-top:14px;font-size:16.5px;font-weight:800;color:var(--navy)}
.case-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.85}
.case-list{margin-top:14px;display:flex;flex-direction:column;gap:7px}
.case-list li{font-size:13.5px;color:var(--muted);display:flex;gap:9px}
.case-list li::before{content:"·";color:var(--gold-deep);font-weight:800}

/* 评价墙 */
.quote-wall{columns:3;column-gap:20px}
.quote-card{
  break-inside:avoid;margin-bottom:20px;padding:22px 22px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.quote-card p{font-size:14.5px;color:var(--text);line-height:1.85}
.quote-foot{margin-top:14px;display:flex;align-items:center;gap:10px}
.avatar{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:13px;font-weight:800;
  background:linear-gradient(140deg,var(--navy-2),var(--navy));color:var(--gold-2);
}
.quote-foot b{display:block;font-size:13.5px;color:var(--navy)}
.quote-foot small{display:block;font-size:12px;color:var(--muted)}

/* 档位对比 */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.tier-card{
  display:flex;flex-direction:column;padding:28px 24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.tier-card.featured{
  background:linear-gradient(168deg,var(--navy),var(--ink));
  border-color:rgba(255,180,0,.45);color:#fff;box-shadow:0 18px 38px rgba(15,19,41,.28);
  transform:translateY(-6px);
}
.tier-card.featured:hover{transform:translateY(-10px)}
.tier-name{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--gold-deep)}
.tier-card.featured .tier-name{color:var(--gold-2)}
.tier-card h3{margin-top:10px;font-size:22px;font-weight:800;color:var(--navy)}
.tier-card.featured h3{color:#fff}
.tier-card .tier-desc{margin-top:12px;font-size:13.5px;color:var(--muted);line-height:1.85}
.tier-card.featured .tier-desc{color:rgba(255,255,255,.72)}
.tier-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.tier-list li{font-size:13.5px;color:var(--muted);display:flex;gap:9px;align-items:flex-start}
.tier-list li::before{content:"✓";flex-shrink:0;color:var(--gold-deep);font-weight:800}
.tier-card.featured .tier-list li{color:rgba(255,255,255,.82)}
.tier-card.featured .tier-list li::before{color:var(--gold-2)}
.tier-foot{margin-top:auto;padding-top:22px}
.tier-foot .btn{width:100%}

/* 动态表 */
.update-table{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.update-row{
  display:grid;grid-template-columns:96px minmax(0,1fr) 120px 110px;gap:18px;align-items:center;
  padding:18px 24px;border-bottom:1px solid var(--line);transition:background .2s ease;
}
.update-row:last-child{border-bottom:none}
.update-row:hover{background:var(--surface-2)}
.update-row .u-tag{font-size:12px;font-weight:700;color:#8a5c00;background:rgba(255,180,0,.16);border:1px solid rgba(255,180,0,.3);border-radius:999px;padding:4px 10px;text-align:center}
.update-row a{font-size:15px;font-weight:700;color:var(--navy);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.update-row a:hover{color:var(--gold-deep)}
.update-row .u-cat,.update-row .u-date{font-size:13px;color:var(--muted)}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-cloud span{
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--navy-2);
  box-shadow:var(--shadow-xs);transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.tag-cloud span:hover{transform:translateY(-3px);background:rgba(255,180,0,.14);border-color:rgba(255,180,0,.4);color:#8a5c00}

/* 更新日志 */
.log-list{display:flex;flex-direction:column;gap:14px}
.log-item{display:grid;grid-template-columns:112px minmax(0,1fr);gap:20px;padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-xs)}
.log-ver{font-size:14px;font-weight:800;color:var(--gold-deep);letter-spacing:.04em}
.log-item h4{font-size:15.5px;font-weight:800;color:var(--navy)}
.log-item p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.82}

/* 频道矩阵 */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.channel-card{
  position:relative;display:block;padding:28px 24px;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(160deg,var(--navy-2),var(--ink));color:#fff;
  border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:0 22px 40px rgba(15,19,41,.3);border-color:rgba(255,180,0,.45)}
.channel-card::after{
  content:"";position:absolute;right:-30px;bottom:-40px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(67,232,255,.26),transparent 70%);
}
.channel-card span{font-size:11.5px;font-weight:700;letter-spacing:.16em;color:var(--gold-2)}
.channel-card h3{margin-top:12px;font-size:20px;font-weight:800;color:#fff;position:relative;z-index:2}
.channel-card p{margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.8;position:relative;z-index:2}
.channel-card .ch-go{
  margin-top:18px;display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;color:var(--gold-2);
  position:relative;z-index:2;
}
.channel-card:hover .ch-go::after{transform:translateX(5px)}
.channel-card .ch-go::after{content:"→";transition:transform .2s ease}

/* 精选内容 */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{display:flex;flex-direction:column;overflow:hidden}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.06)}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:16.5px;font-weight:800;color:var(--navy);line-height:1.55}
.post-body h3 a:hover{color:var(--gold-deep)}
.post-body p{font-size:13.5px;color:var(--muted);line-height:1.82;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--muted)}
.list-more-wrap{margin-top:34px;text-align:center}

/* 合作墙 */
.partner-wall{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.partner-wall span{
  padding:13px 24px;border-radius:var(--radius);font-size:14px;font-weight:600;color:var(--navy-2);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
}
.section--dark .partner-wall span{background:rgba(255,255,255,.07);color:rgba(255,255,255,.86)}

/* 订阅 */
.subscribe{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:56px 44px;color:#fff;background:var(--navy);
  box-shadow:0 24px 50px rgba(15,19,41,.3);
}
.subscribe-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.subscribe::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(15,19,41,.94),rgba(35,42,82,.82));
}
.subscribe-inner{position:relative;z-index:3;max-width:720px}
.subscribe h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:#fff}
.subscribe p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.76);line-height:1.9}
.sub-form{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.sub-form input{
  flex:1 1 260px;min-width:0;padding:14px 18px;border-radius:12px;font-size:15px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.1);color:#fff;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{background:rgba(255,255,255,.16);border-color:rgba(255,180,0,.6)}
.sub-tip{margin-top:14px;font-size:13.5px;color:var(--gold-2);min-height:20px}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.56);max-width:320px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.62);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.56)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.44);
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a:hover{color:var(--gold-2)}

/* 响应式 */
@media (max-width:1080px){
  .topic-rail{grid-template-columns:repeat(3,minmax(0,1fr))}
  .quote-wall{columns:2}
  .mechanic-grid,.scene-grid,.case-grid,.channel-grid,.post-grid,.tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .header-inner{height:66px}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;
    padding:14px 24px 20px;background:rgba(15,19,41,.98);
    border-bottom:1px solid rgba(255,255,255,.1);
    display:none;box-shadow:0 20px 40px rgba(0,0,0,.35);
  }
  .nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15.5px}
  .nav-link.is-active::after{display:none}
  .header-actions .btn-sm{display:none}
  .split{grid-template-columns:minmax(0,1fr)}
  .demo{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero{padding:64px 0 110px;clip-path:polygon(0 0,100% 0,100% 96%,0 100%)}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .update-row{grid-template-columns:84px minmax(0,1fr);grid-auto-rows:auto;row-gap:6px}
  .update-row .u-cat,.update-row .u-date{grid-column:2;font-size:12.5px}
  .subscribe{padding:40px 26px}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .mechanic-grid,.scene-grid,.case-grid,.channel-grid,.post-grid,.tier-grid{grid-template-columns:minmax(0,1fr)}
  .topic-rail{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-wall{columns:1}
  .tier-card.featured{transform:none}
  .tier-card.featured:hover{transform:translateY(-4px)}
  .feed-item{grid-template-columns:minmax(0,1fr)}
  .feed-thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .bar-row{grid-template-columns:96px minmax(0,1fr) 52px;gap:12px}
  .log-item{grid-template-columns:minmax(0,1fr);gap:8px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero-points{grid-template-columns:minmax(0,1fr)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-cell{padding:20px 14px}
  .topic-rail{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .bar-row{grid-template-columns:minmax(0,1fr) 48px;row-gap:8px}
  .bar-row .bar-track{grid-column:1 / -1;order:3}
  .subscribe{padding:32px 20px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
 --ink:#0f1329;
 --navy:#1a1f3d;
 --navy-2:#232a52;
 --navy-3:#2d3566;
 --gold:#ffb400;
 --gold-2:#ffd76a;
 --gold-deep:#e39a00;
 --cyan:#43e8ff;
 --bg:#f4f5fb;
 --surface:#ffffff;
 --surface-2:#fafbff;
 --text:#1b2038;
 --muted:#6b7285;
 --line:#e5e8f3;
 --radius-sm:10px;
 --radius:14px;
 --radius-lg:22px;
 --radius-xl:28px;
 --shadow-xs:0 1px 3px rgba(19,24,54,.06);
 --shadow-sm:0 4px 14px rgba(19,24,54,.07);
 --shadow-md:0 14px 34px rgba(19,24,54,.10);
 --shadow-gold:0 12px 26px rgba(255,180,0,.28);
 --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 background:var(--bg);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(67,232,255,.65);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* 顶部导航 */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(15,19,41,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));
 color:#251a00;font-weight:800;font-size:19px;
 box-shadow:0 6px 16px rgba(255,180,0,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.52);letter-spacing:.14em;margin-top:4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.74);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(255,180,0,.14)}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--gold),var(--gold-2));
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
 background:rgba(255,255,255,.06);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:12px;border:1px solid transparent;
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold) 62%,var(--gold-deep));color:#251a00;box-shadow:var(--shadow-gold)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,180,0,.38)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-line{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-line:hover{border-color:var(--gold);background:#fff8e6;transform:translateY(-2px)}

/* Hero */
.cat-hero{
 position:relative;overflow:hidden;color:#fff;background:var(--navy);
 padding:70px 0 92px;
}
.cat-hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;transform:scale(1.05)}
.cat-hero::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(80% 70% at 10% 4%,rgba(67,232,255,.20),transparent 58%),
 radial-gradient(70% 60% at 92% 18%,rgba(255,180,0,.20),transparent 62%),
 linear-gradient(158deg,rgba(15,19,41,.94),rgba(26,31,61,.90) 52%,rgba(35,42,82,.78));
}
.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:999px;
 font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--gold-2);
 background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.35);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
.hero-copy h1{
 margin-top:20px;font-size:clamp(28px,3.8vw,44px);font-weight:800;line-height:1.28;
 letter-spacing:-.01em;color:#fff;text-shadow:0 6px 26px rgba(0,0,0,.35);
}
.hero-copy h1 span{color:var(--gold-2)}
.hero-lead{margin-top:18px;color:rgba(255,255,255,.82);font-size:16px;line-height:1.9;max-width:640px}
.hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.chip{
 display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
 font-size:13px;color:rgba(255,255,255,.86);
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
}
.chip b{color:var(--gold-2);font-weight:700}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:13px}
.hero-panel{
 background:rgba(255,255,255,.055);
 border:1px solid rgba(255,255,255,.14);
 border-radius:var(--radius-lg);
 padding:24px;
 backdrop-filter:blur(8px);
 box-shadow:0 22px 50px rgba(5,8,24,.4);
}
.hero-panel h2{font-size:17px;color:#fff;font-weight:800;letter-spacing:.02em}
.hero-panel p{margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.6)}
.quick-grid{margin-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.quick-item{
 display:flex;flex-direction:column;gap:3px;padding:12px 13px;border-radius:12px;
 background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.quick-item:hover{background:rgba(255,180,0,.14);border-color:rgba(255,180,0,.42);transform:translateY(-2px)}
.quick-item .qi-no{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--gold-2)}
.quick-item strong{font-size:14px;color:#fff;font-weight:700}
.quick-item em{font-style:normal;font-size:12px;color:rgba(255,255,255,.55);line-height:1.5}

/* 板块 */
.section{padding:76px 0}
.section--tint{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--navy{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.section--navy::before{
 content:"";position:absolute;inset:0;
 background:radial-gradient(70% 80% at 88% 10%,rgba(255,180,0,.16),transparent 60%),
 radial-gradient(60% 70% at 8% 90%,rgba(67,232,255,.14),transparent 62%);
}
.section--navy > .container{position:relative;z-index:2}
.section-head{max-width:780px}
.section-tag{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
 letter-spacing:.16em;text-transform:uppercase;color:var(--gold-deep);
}
.section-tag::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),var(--gold-2))}
.section--navy .section-tag{color:var(--gold-2)}
.section-title{margin-top:12px;font-size:clamp(23px,2.6vw,32px);font-weight:800;line-height:1.35;letter-spacing:-.01em;color:var(--navy)}
.section--navy .section-title{color:#fff}
.section-desc{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section--navy .section-desc{color:rgba(255,255,255,.72)}

/* 网格与卡片 */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.mt-32{margin-top:32px}
.mt-40{margin-top:40px}

.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px;box-shadow:var(--shadow-xs);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.4)}
.card-no{
 display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;
 font-weight:800;font-size:15px;color:#2a1d00;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));
 box-shadow:0 8px 18px rgba(255,180,0,.3);
}
.card h3{margin-top:16px;font-size:18px;font-weight:800;color:var(--navy)}
.card p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.85}
.card .tag-list{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tag{
 display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:600;color:var(--navy-2);
 background:#eef1fa;border:1px solid #dfe4f2;
}
.tag-gold{color:#7a5200;background:#fff5da;border-color:#ffe3a3}

/* 图文两栏 */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(15,19,41,0) 42%,rgba(15,19,41,.72));
}
.media-badge{
 position:absolute;left:18px;bottom:18px;z-index:2;display:flex;gap:18px;flex-wrap:wrap;
 padding:13px 18px;border-radius:14px;background:rgba(15,19,41,.78);
 border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(6px);
}
.media-badge div{display:flex;flex-direction:column;line-height:1.3}
.media-badge b{font-size:19px;color:var(--gold-2);font-weight:800}
.media-badge span{font-size:11.5px;color:rgba(255,255,255,.65)}
.check-list{margin-top:22px;display:grid;gap:13px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.check-list li i{
 flex-shrink:0;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#2a1d00;
 font-style:normal;font-size:12px;font-weight:800;margin-top:3px;
}
.check-list li strong{color:var(--navy);font-weight:700}

/* 时间线 */
.timeline{margin-top:36px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step}
.tl-item{
 position:relative;padding:24px 20px;border-radius:var(--radius);
 background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.42)}
.tl-item::before{
 counter-increment:step;content:"0" counter(step);
 display:block;font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--gold-deep);
}
.tl-item h3{margin-top:8px;font-size:16.5px;font-weight:800;color:var(--navy)}
.tl-item p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:36px}
.stat{
 padding:22px 20px;border-radius:var(--radius-lg);
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
 transition:background .2s ease,transform .2s ease;
}
.stat:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.stat b{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:800;color:var(--gold-2);letter-spacing:-.01em}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.7}

/* 场景卡 */
.scene{
 overflow:hidden;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.4)}
.scene img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-body{padding:22px}
.scene-body h3{font-size:17.5px;font-weight:800;color:var(--navy)}
.scene-body p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.85}
.scene-body .tag-list{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}

/* 误判对照 */
.compare{display:grid;gap:14px;margin-top:34px}
.compare-row{
 display:grid;grid-template-columns:.9fr 1.1fr;gap:0;
 border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
 background:var(--surface);box-shadow:var(--shadow-xs);
}
.compare-row .wrong{padding:18px 20px;background:#fdf4f4;border-right:1px solid var(--line)}
.compare-row .right{padding:18px 20px;background:#fbfdf7}
.compare-row h3{font-size:15px;font-weight:800;display:flex;align-items:center;gap:8px}
.compare-row .wrong h3{color:#a3392f}
.compare-row .right h3{color:#2f6b2a}
.compare-row p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.8}
.badge-x,.badge-v{
 width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
 font-size:11px;font-weight:800;font-style:normal;flex-shrink:0;
}
.badge-x{background:#f7d8d4;color:#a3392f}
.badge-v{background:#dcefd7;color:#2f6b2a}

/* FAQ */
.faq{display:grid;gap:12px;margin-top:34px;max-width:920px}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow-sm)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-size:15.5px;font-weight:700;color:var(--navy);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";flex-shrink:0;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
 background:#eef1fa;color:var(--navy-2);font-weight:800;font-size:15px;transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"−";background:var(--gold);color:#2a1d00;transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.9}

/* 资讯列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:34px}
.post-card{
 display:flex;flex-direction:column;gap:10px;padding:22px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.post-tag{
 align-self:flex-start;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;
 color:#7a5200;background:#fff5da;border:1px solid #ffe3a3;
}
.post-card h3{font-size:16.5px;font-weight:800;color:var(--navy);line-height:1.55}
.post-card p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:12px;font-size:12.5px;color:#9096ab;border-top:1px dashed var(--line)}
.post-empty{
 margin-top:34px;padding:34px;text-align:center;font-size:14.5px;color:var(--muted);
 background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
}

/* 订阅 CTA */
.cta-card{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 padding:46px;color:#fff;
 background:linear-gradient(135deg,var(--navy),var(--navy-3) 62%,#3a2f6b);
 box-shadow:0 26px 60px rgba(15,19,41,.28);
}
.cta-card::after{
 content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,180,0,.34),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.4}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.76);line-height:1.85}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
 flex:1 1 200px;min-width:0;padding:13px 16px;border-radius:12px;font-size:14.5px;
 border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.09);color:#fff;
 transition:border-color .2s ease,background .2s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{border-color:var(--gold);background:rgba(255,255,255,.14)}
.sub-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55)}
.form-msg{margin-top:12px;font-size:13.5px;color:var(--gold-2);min-height:20px}

/* 页脚 */
.site-footer{background:var(--navy);color:rgba(255,255,255,.7);padding:60px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p,.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.58)}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col a{
 display:block;font-size:13.5px;color:rgba(255,255,255,.62);padding:5px 0;
 transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-bottom{
 margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
 font-size:13px;color:rgba(255,255,255,.5);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:rgba(255,255,255,.6);transition:color .2s ease}
.fb-links a:hover{color:var(--gold-2)}

/* 响应式 */
@media (max-width:1080px){
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .split{grid-template-columns:1fr;gap:30px}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
 .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-inner{grid-template-columns:1fr;gap:26px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
 .header-inner{height:66px}
 .nav{
   position:absolute;left:0;right:0;top:100%;
   flex-direction:column;align-items:stretch;gap:4px;
   margin-left:0;padding:14px 18px 18px;
   background:rgba(15,19,41,.99);
   border-bottom:1px solid rgba(255,255,255,.1);
   box-shadow:0 22px 40px rgba(5,8,24,.42);
   display:none;
 }
 .nav.is-open{display:flex}
 .nav-link{padding:12px 14px;font-size:15px}
 .nav-link.is-active::after{display:none}
 .nav-toggle{display:flex}
 .header-actions{margin-left:auto}
 .card{padding:22px}
}
@media (max-width:760px){
 .container{padding:0 18px}
 .section{padding:56px 0}
 .cat-hero{padding:52px 0 64px}
 .grid-3,.grid-4{grid-template-columns:1fr}
 .compare-row{grid-template-columns:1fr}
 .compare-row .wrong{border-right:0;border-bottom:1px solid var(--line)}
 .quick-grid{grid-template-columns:1fr}
 .post-grid{grid-template-columns:1fr}
 .cta-card{padding:30px 22px;border-radius:var(--radius-lg)}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
 .timeline{grid-template-columns:1fr}
 .stats{grid-template-columns:1fr}
 .hero-copy h1{font-size:26px}
 .brand-text{font-size:15px}
 .brand-text em{font-size:10px;letter-spacing:.1em}
 .btn{padding:12px 20px;font-size:14px}
 .header-actions .btn{display:none}
 .media-badge{left:12px;right:12px;bottom:12px;gap:12px;padding:10px 12px}
}

/* roulang page: article */
:root{
 --ink:#0f1329;
 --navy:#1a1f3d;
 --navy-2:#232a52;
 --navy-3:#2d3566;
 --gold:#ffb400;
 --gold-2:#ffd76a;
 --gold-deep:#e39a00;
 --cyan:#43e8ff;
 --bg:#f4f5fb;
 --surface:#ffffff;
 --surface-2:#fafbff;
 --text:#1b2038;
 --muted:#6b7285;
 --line:#e5e8f3;
 --radius-sm:10px;
 --radius:14px;
 --radius-lg:22px;
 --radius-xl:28px;
 --shadow-xs:0 1px 3px rgba(19,24,54,.06);
 --shadow-sm:0 4px 14px rgba(19,24,54,.07);
 --shadow-md:0 14px 34px rgba(19,24,54,.10);
 --shadow-gold:0 12px 26px rgba(255,180,0,.28);
 --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 background:var(--bg);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(67,232,255,.65);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--gold);color:#241a00;font-weight:700;padding:10px 18px;border-radius:0 0 10px 0}
.skip-link:focus{left:0}
/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(15,19,41,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));
 color:#251a00;font-weight:800;font-size:19px;
 box-shadow:0 6px 16px rgba(255,180,0,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.52);letter-spacing:.14em;margin-top:4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.74);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(255,180,0,.14)}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--gold),var(--gold-2));
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
 background:rgba(255,255,255,.06);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:12px;border:1px solid transparent;
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold) 62%,var(--gold-deep));color:#251a00;box-shadow:var(--shadow-gold)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,180,0,.38)}
.btn-gold:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,180,0,.3)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
/* ============ 文章头部 ============ */
.article-hero{
 position:relative;overflow:hidden;color:#fff;background:var(--navy);
 padding:52px 0 64px;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;transform:scale(1.04)}
.article-hero::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(80% 66% at 10% 4%,rgba(67,232,255,.20),transparent 60%),
 radial-gradient(64% 58% at 94% 12%,rgba(255,180,0,.20),transparent 62%),
 linear-gradient(158deg,rgba(15,19,41,.95),rgba(26,31,61,.92) 54%,rgba(35,42,82,.80));
}
.hero-inner{position:relative;z-index:3}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.58)}
.crumbs a{transition:color .2s ease}
.crumbs a:hover{color:var(--gold-2)}
.crumb-sep{color:rgba(255,255,255,.3)}
.article-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.tag{
 display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:.03em;
 color:var(--gold-2);background:rgba(255,180,0,.14);border:1px solid rgba(255,180,0,.34);
}
.tag-cyan{color:#9df0ff;background:rgba(67,232,255,.12);border-color:rgba(67,232,255,.34)}
.tag-line{color:rgba(255,255,255,.78);background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.18)}
.article-hero h1{
 margin-top:18px;font-size:clamp(26px,3.5vw,44px);font-weight:800;line-height:1.3;
 letter-spacing:-.015em;color:#fff;text-shadow:0 8px 32px rgba(0,0,0,.35);
}
.article-lead{margin-top:18px;max-width:880px;font-size:16px;line-height:1.95;color:rgba(255,255,255,.82)}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:26px;font-size:13.5px;color:rgba(255,255,255,.62)}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.meta-dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
/* ============ 通用板块 ============ */
.section{padding:64px 0}
.section-alt{background:linear-gradient(180deg,#ffffff,#fafbff)}
.section-head{max-width:760px;margin-bottom:32px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--gold-deep);
 padding:6px 13px;border-radius:999px;background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.28);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.section-head h2{margin-top:14px;font-size:clamp(22px,2.6vw,32px);font-weight:800;letter-spacing:-.01em;color:var(--navy)}
.section-head p{margin-top:12px;font-size:15.5px;line-height:1.92;color:var(--muted)}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);padding:26px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.42)}
.card h3{font-size:18px;font-weight:800;color:var(--navy);margin-top:16px;line-height:1.5}
.card p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--muted)}
.card-num{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--navy-3),var(--navy));color:var(--gold-2);
 font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(26,31,61,.22);
}
/* ============ 正文 ============ */
.article-wrap{max-width:900px;margin:0 auto}
.article-cover{
 border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
 box-shadow:var(--shadow-md);margin-bottom:34px;background:var(--surface);
}
.article-cover img{width:100%;height:clamp(200px,32vw,360px);object-fit:cover}
.article-body{font-size:16.5px;line-height:1.95;color:var(--text);word-break:break-word}
.article-body h2{
 font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.45;color:var(--navy);
 margin:40px 0 14px;padding-left:14px;border-left:4px solid var(--gold);
}
.article-body h3{font-size:19px;font-weight:800;color:var(--navy-2);margin:28px 0 10px}
.article-body h4{font-size:17px;font-weight:700;color:var(--navy-2);margin:22px 0 8px}
.article-body p{margin:14px 0}
.article-body ul,.article-body ol{margin:14px 0;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body a{color:var(--gold-deep);font-weight:600;border-bottom:1px dashed rgba(227,154,0,.5);transition:color .2s ease}
.article-body a:hover{color:var(--navy)}
.article-body img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm)}
.article-body blockquote{
 margin:22px 0;padding:16px 22px;background:var(--surface-2);
 border-left:4px solid var(--cyan);border-radius:0 var(--radius) var(--radius) 0;color:#4b5470;
}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--navy);color:#fff;font-weight:700}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body code{background:#eef1fa;color:var(--navy-2);padding:2px 7px;border-radius:6px;font-size:14px}
.empty-state{
 text-align:center;background:var(--surface);border:1px dashed rgba(26,31,61,.2);
 border-radius:var(--radius-lg);padding:56px 26px;box-shadow:var(--shadow-xs);
}
.empty-state h2{font-size:24px;font-weight:800;color:var(--navy)}
.empty-state p{margin:12px auto 24px;max-width:520px;color:var(--muted);font-size:15px;line-height:1.9}
/* ============ 参考表 ============ */
.table-wrap{
 overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--line);
 background:var(--surface);box-shadow:var(--shadow-sm);
}
table.ref{width:100%;border-collapse:collapse;min-width:640px;font-size:15px}
table.ref thead th{
 background:var(--navy);color:#fff;font-weight:700;text-align:left;
 padding:15px 20px;font-size:13.5px;letter-spacing:.05em;white-space:nowrap;
}
table.ref tbody td{padding:15px 20px;border-top:1px solid var(--line);color:var(--text);line-height:1.7}
table.ref tbody tr:nth-child(even){background:var(--surface-2)}
table.ref tbody tr{transition:background .2s ease}
table.ref tbody tr:hover{background:rgba(67,232,255,.08)}
table.ref .em{color:var(--gold-deep);font-weight:800}
.note-card{
 background:linear-gradient(150deg,var(--navy),var(--navy-2));color:#fff;
 border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md);
}
.note-card h3{font-size:18px;font-weight:800;color:#fff;margin:0 0 14px}
.note-card li{display:flex;gap:10px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.78);padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.note-card li:last-child{border-bottom:0}
.note-card li i{flex-shrink:0;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;background:rgba(255,180,0,.2);color:var(--gold-2);font-style:normal;font-size:11px;font-weight:800;margin-top:4px}
/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--gold),rgba(255,180,0,0))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-27px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
.tl-date{font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--gold-deep)}
.tl-item h3{font-size:17px;font-weight:800;color:var(--navy);margin-top:6px}
.tl-item p{margin-top:6px;font-size:14.5px;line-height:1.9;color:var(--muted)}
/* ============ 图文卡 ============ */
.media-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.42)}
.media-card img{width:100%;height:176px;object-fit:cover}
.media-body{padding:22px}
.media-body h3{font-size:18px;font-weight:800;color:var(--navy);line-height:1.5}
.media-body p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--muted)}
.chip{
 display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
 font-size:12px;font-weight:700;color:var(--navy-2);
 background:rgba(26,31,61,.06);border:1px solid rgba(26,31,61,.1);
}
/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px}
.faq details{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq details[open]{box-shadow:var(--shadow-sm);border-color:rgba(255,180,0,.5)}
.faq summary{
 list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;
 font-size:16px;font-weight:800;color:var(--navy);line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";flex-shrink:0;color:var(--gold-deep);font-size:22px;font-weight:700;line-height:1;
 transition:transform .2s ease;
}
.faq details[open] summary::after{content:"−";transform:rotate(180deg)}
.faq .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.92;color:var(--muted)}
/* ============ 订阅区 ============ */
.cta-band{
 position:relative;overflow:hidden;
 background:linear-gradient(135deg,var(--navy),var(--navy-2) 56%,#2a2263);
 color:#fff;padding:66px 0;
}
.cta-band::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(60% 70% at 88% 12%,rgba(255,180,0,.22),transparent 60%),
 radial-gradient(50% 60% at 6% 90%,rgba(67,232,255,.16),transparent 62%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.4}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.76)}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
 flex:1 1 210px;min-width:0;padding:14px 16px;border-radius:12px;
 border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
 color:#fff;font-size:15px;transition:border-color .2s ease,background .2s ease;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5)}
.subscribe-form input:focus{background:rgba(255,255,255,.14);border-color:rgba(255,180,0,.7)}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.8}
.form-msg{display:none;margin-top:12px;font-size:13.5px;font-weight:700;color:var(--gold-2)}
/* ============ 页脚 ============ */
.site-footer{background:#0b0e20;color:rgba(255,255,255,.7);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.92;color:rgba(255,255,255,.55);max-width:36ch}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin:0 0 14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.6);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-col p{font-size:13.5px;line-height:1.92;color:rgba(255,255,255,.5)}
.footer-bottom{
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;
 font-size:13px;color:rgba(255,255,255,.45);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a{transition:color .2s ease}
.fb-links a:hover{color:var(--gold-2)}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .section{padding:54px 0}
 .cta-inner{grid-template-columns:1fr;gap:26px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
 .header-inner{height:66px;gap:14px}
 .nav-toggle{display:flex}
 .nav{
  position:fixed;left:0;right:0;top:66px;margin-left:0;
  flex-direction:column;align-items:stretch;gap:6px;
  padding:16px 24px 24px;display:none;
  background:rgba(12,16,36,.985);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 22px 40px rgba(0,0,0,.35);
  max-height:calc(100vh - 66px);overflow-y:auto;
 }
 .nav.is-open{display:flex}
 .nav-link{width:100%;padding:12px 14px;font-size:15.5px;border-radius:10px}
 .nav-link.is-active::after{left:14px;right:auto;width:42px}
 .header-actions{margin-left:auto}
 .article-hero{padding:40px 0 52px}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .grid-2,.grid-3{grid-template-columns:1fr}
 .section{padding:46px 0}
 .article-body{font-size:16px}
 .article-body h2{margin-top:32px}
 .article-lead{font-size:15px}
 .card{padding:22px}
 .media-card img{height:190px}
 .cta-band{padding:52px 0}
 .footer-bottom{font-size:12.5px}
}
@media (max-width:520px){
 .header-actions .btn{display:none}
 .brand-text{font-size:15.5px}
 .brand-text em{font-size:10px;letter-spacing:.1em}
 .brand-mark{width:34px;height:34px;border-radius:10px;font-size:17px}
 .article-hero h1{font-size:25px}
 .article-meta{gap:8px 16px;font-size:12.5px}
 .section-head h2{font-size:22px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .subscribe-form{flex-direction:column}
 .subscribe-form .btn{width:100%}
 .faq summary{font-size:15px;padding:16px 18px}
 .faq .faq-body{padding:0 18px 18px}
 .empty-state{padding:40px 18px}
}

/* roulang page: category2 */
:root{
  --ink:#0f1329;
  --navy:#1a1f3d;
  --navy-2:#232a52;
  --navy-3:#2d3566;
  --gold:#ffb400;
  --gold-2:#ffd76a;
  --gold-deep:#e39a00;
  --cyan:#43e8ff;
  --bg:#f4f5fb;
  --surface:#ffffff;
  --surface-2:#fafbff;
  --text:#1b2038;
  --muted:#6b7285;
  --line:#e5e8f3;
  --radius-sm:10px;
  --radius:14px;
  --radius-lg:22px;
  --radius-xl:28px;
  --shadow-xs:0 1px 3px rgba(19,24,54,.06);
  --shadow-sm:0 4px 14px rgba(19,24,54,.07);
  --shadow-md:0 14px 34px rgba(19,24,54,.10);
  --shadow-gold:0 12px 26px rgba(255,180,0,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(67,232,255,.65);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,19,41,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));
  color:#251a00;font-weight:800;font-size:19px;
  box-shadow:0 6px 16px rgba(255,180,0,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.52);letter-spacing:.14em;margin-top:4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.74);
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(255,180,0,.14)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-2),var(--gold) 62%,var(--gold-deep));
  color:#251a00;box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,180,0,.38)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm);border-color:var(--navy)}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-block{width:100%}

/* 分类首屏 */
.cat-hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;padding:56px 0 78px}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.30;transform:scale(1.05)}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(80% 60% at 10% 0%,rgba(67,232,255,.18),transparent 60%),
    radial-gradient(70% 60% at 94% 18%,rgba(255,180,0,.20),transparent 62%),
    linear-gradient(152deg,rgba(15,19,41,.95),rgba(26,31,61,.9) 55%,rgba(35,42,82,.8));
}
.cat-hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:44px;align-items:start}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.78);transition:color .2s ease}
.crumb a:hover{color:var(--gold-2)}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--gold-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.35);
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
.cat-hero h1{margin-top:20px;font-size:clamp(28px,3.9vw,46px);font-weight:800;letter-spacing:-.02em;color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.35)}
.cat-hero h1 span{color:var(--gold-2)}
.cat-hero-lead{margin-top:18px;max-width:760px;color:rgba(255,255,255,.82);font-size:16px;line-height:1.92}
.hero-points{margin-top:26px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:720px}
.hero-points li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:11px 14px;
}
.hero-points li i{
  flex-shrink:0;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#2a1d00;
  font-style:normal;font-size:12px;font-weight:800;margin-top:2px;
}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-trust{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13.5px;color:rgba(255,255,255,.6)}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-trust span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan)}

/* 推荐档前置卡 */
.hero-pick{
  position:relative;border-radius:var(--radius-lg);padding:26px 24px 24px;
  background:linear-gradient(165deg,rgba(255,180,0,.16),rgba(26,31,61,.86) 46%,rgba(15,19,41,.94));
  border:1px solid rgba(255,180,0,.42);
  box-shadow:0 24px 54px rgba(0,0,0,.38),inset 0 1px 0 rgba(255,255,255,.1);
}
.pick-tag{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.08em;color:#251a00;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));box-shadow:0 6px 16px rgba(255,180,0,.3);
}
.hero-pick h2{margin-top:14px;font-size:24px;color:#fff;font-weight:800}
.hero-pick .pick-sub{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.pick-list{margin-top:18px;display:grid;gap:10px}
.pick-list li{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;color:rgba(255,255,255,.78);border-bottom:1px dashed rgba(255,255,255,.14);padding-bottom:9px}
.pick-list li b{color:var(--gold-2);font-weight:700}
.hero-pick .btn{margin-top:20px}
.pick-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.5);text-align:center}

/* 通用板块 */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,var(--surface-2),#fff)}
.section-ink{background:linear-gradient(150deg,var(--navy),var(--navy-3));color:#fff}
.section-head{max-width:760px}
.section-head.center{margin:0 auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--gold-deep);
  background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.3);
}
.section-ink .eyebrow{color:var(--gold-2);background:rgba(255,180,0,.14);border-color:rgba(255,180,0,.34)}
.section-title{margin-top:16px;font-size:clamp(23px,2.6vw,32px);font-weight:800}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9}
.section-ink .section-desc{color:rgba(255,255,255,.74)}

/* 档位对比卡 */
.tier-grid{margin-top:40px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
.tier-card{
  position:relative;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;
  box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tier-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#d6dcef}
.tier-card.is-pick{
  order:-1;border-color:rgba(255,180,0,.6);
  background:linear-gradient(180deg,#fffdf5,#fff);
  box-shadow:0 18px 40px rgba(255,180,0,.18);
}
.tier-card.is-pick::before{
  content:"推荐";position:absolute;top:-13px;left:24px;
  padding:3px 12px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.06em;
  color:#251a00;background:linear-gradient(135deg,var(--gold-2),var(--gold));box-shadow:0 8px 18px rgba(255,180,0,.32);
}
.tier-name{font-size:19px;font-weight:800;color:var(--navy)}
.tier-tagline{margin-top:8px;font-size:13.5px;color:var(--muted);min-height:46px}
.tier-meter{margin-top:18px;height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.tier-meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--gold))}
.tier-rows{margin-top:18px;display:grid;gap:10px;flex:1}
.tier-rows div{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--muted);padding-bottom:8px;border-bottom:1px dashed var(--line)}
.tier-rows div b{color:var(--text);font-weight:700}
.tier-card .btn{margin-top:22px}

/* 窗口卡 */
.window-grid{margin-top:40px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.window-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.window-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.window-num{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#251a00;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));box-shadow:0 8px 18px rgba(255,180,0,.28);
}
.window-card h3{margin-top:16px;font-size:18px;font-weight:800;color:var(--navy)}
.window-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85}
.chip-row{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--navy-2);
  background:rgba(67,232,255,.12);border:1px solid rgba(67,232,255,.32);
}

/* 场景矩阵 */
.scene-grid{margin-top:40px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.scene-card{
  display:flex;gap:18px;padding:24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.scene-card:hover{border-color:rgba(255,180,0,.45);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.scene-ico{
  flex-shrink:0;width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--navy-2),var(--navy));color:var(--gold-2);
  font-weight:800;font-size:15px;
}
.scene-card h3{font-size:17px;font-weight:800;color:var(--navy)}
.scene-card p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.85}
.scene-card .scene-do{margin-top:12px;font-size:13.5px;color:var(--gold-deep);font-weight:700}

/* 流程 */
.flow{margin-top:42px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.flow-step{
  position:relative;padding:24px 20px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.flow-step:hover{background:rgba(255,255,255,.09);border-color:rgba(255,180,0,.4);transform:translateY(-3px)}
.flow-step em{font-style:normal;font-size:12.5px;font-weight:800;letter-spacing:.12em;color:var(--gold-2)}
.flow-step h3{margin-top:10px;font-size:17px;color:#fff;font-weight:800}
.flow-step p{margin-top:9px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}

/* 证据区 */
.evidence{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:40px;align-items:center}
.evidence-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.evidence-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.evidence-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,19,41,0) 45%,rgba(15,19,41,.55));
}
.evidence-media span{
  position:absolute;left:18px;bottom:16px;z-index:2;font-size:12.5px;font-weight:700;
  color:#fff;padding:5px 12px;border-radius:999px;background:rgba(15,19,41,.6);border:1px solid rgba(255,255,255,.22);
}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-xs);
}
.stat-card b{display:block;font-size:28px;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.stat-card b i{font-style:normal;font-size:15px;color:var(--gold-deep);margin-left:3px}
.stat-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}
.evidence-copy{margin-top:22px;font-size:14.5px;color:var(--muted);line-height:1.9}

/* 误区列表 */
.mistake-list{margin-top:36px;display:grid;gap:14px}
.mistake-item{
  display:grid;grid-template-columns:auto 1fr auto 1fr;gap:16px;align-items:center;
  padding:18px 22px;border-radius:var(--radius);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,transform .2s ease;
}
.mistake-item:hover{border-color:rgba(255,180,0,.45);transform:translateX(3px)}
.mistake-item .label-bad{font-size:12.5px;font-weight:800;color:#b23a3a;background:rgba(196,74,74,.1);border:1px solid rgba(196,74,74,.26);border-radius:999px;padding:4px 11px;white-space:nowrap}
.mistake-item .label-good{font-size:12.5px;font-weight:800;color:#0f7a5a;background:rgba(31,160,120,.1);border:1px solid rgba(31,160,120,.28);border-radius:999px;padding:4px 11px;white-space:nowrap}
.mistake-item .txt{font-size:14.5px;color:var(--text)}
.mistake-item .txt.muted{color:var(--muted)}

/* 资讯列表 */
.feed-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.feed-list{margin-top:34px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.feed-item{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feed-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.feed-cat{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--navy-2);background:rgba(67,232,255,.12);border:1px solid rgba(67,232,255,.32);
  border-radius:999px;padding:3px 11px;
}
.feed-item h3{margin-top:14px;font-size:17px;font-weight:800;color:var(--navy);line-height:1.5}
.feed-item p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.85;flex:1}
.feed-item time{display:block;margin-top:16px;font-size:12.5px;color:#98a0b8}
.feed-empty{margin-top:30px;padding:26px;border-radius:var(--radius);background:var(--surface-2);border:1px dashed var(--line);color:var(--muted);text-align:center;font-size:14.5px}

/* FAQ */
.faq{margin-top:36px;max-width:900px;display:grid;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:4px 22px;box-shadow:var(--shadow-xs);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 0;font-size:16px;font-weight:700;color:var(--navy);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  font-size:17px;font-weight:700;color:var(--navy);background:rgba(255,180,0,.16);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-a{padding:0 0 20px;font-size:14.5px;color:var(--muted);line-height:1.9}

/* 订阅收口 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:52px 44px;color:#fff;
  background:linear-gradient(140deg,var(--navy),var(--navy-3));
  box-shadow:var(--shadow-md);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 80% at 8% 0%,rgba(255,180,0,.22),transparent 58%),
    radial-gradient(50% 70% at 96% 100%,rgba(67,232,255,.22),transparent 60%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff}
.cta-inner p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.76);line-height:1.9}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
  flex:1;min-width:190px;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.1);color:#fff;font-size:14.5px;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5)}
.subscribe-form input:focus{outline:3px solid rgba(67,232,255,.5);outline-offset:2px;background:rgba(255,255,255,.16)}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.52)}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.56);max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.6);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.56)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.46);
}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{color:rgba(255,255,255,.6);transition:color .2s ease}
.fb-links a:hover{color:var(--gold-2)}

/* 响应式 */
@media (max-width:1024px){
  .cat-hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-pick{max-width:520px}
  .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .window-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feed-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .evidence{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .nav{display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:6px;padding:16px 20px 22px;background:rgba(15,19,41,.98);border-bottom:1px solid rgba(255,255,255,.1);
    box-shadow:0 22px 40px rgba(0,0,0,.4)}
  .nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .cat-hero{padding:42px 0 58px}
  .hero-points{grid-template-columns:1fr}
  .tier-grid,.window-grid,.scene-grid,.flow,.feed-list,.stat-grid{grid-template-columns:1fr}
  .tier-card.is-pick{order:0}
  .mistake-item{grid-template-columns:1fr;gap:10px}
  .mistake-item .label-bad,.mistake-item .label-good{justify-self:start}
  .cta-band{padding:36px 24px}
  .header-actions .btn-sm{display:none}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .header-inner{height:66px}
  .nav{top:66px}
  .brand-text{font-size:15px}
  .brand-text em{font-size:10px;letter-spacing:.1em}
  .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
  .hero-actions .btn{width:100%}
  .section-title{font-size:22px}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .stat-card b{font-size:24px}
}

/* roulang page: category3 */
:root{
 --ink:#0f1329;
 --navy:#1a1f3d;
 --navy-2:#232a52;
 --navy-3:#2d3566;
 --gold:#ffb400;
 --gold-2:#ffd76a;
 --gold-deep:#e39a00;
 --cyan:#43e8ff;
 --bg:#f4f5fb;
 --surface:#ffffff;
 --surface-2:#fafbff;
 --text:#1b2038;
 --muted:#6b7285;
 --line:#e5e8f3;
 --radius-sm:10px;
 --radius:14px;
 --radius-lg:22px;
 --radius-xl:28px;
 --shadow-xs:0 1px 3px rgba(19,24,54,.06);
 --shadow-sm:0 4px 14px rgba(19,24,54,.07);
 --shadow-md:0 14px 34px rgba(19,24,54,.10);
 --shadow-gold:0 12px 26px rgba(255,180,0,.28);
 --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 background:var(--bg);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(67,232,255,.65);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 顶部导航 */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(15,19,41,.94);
 backdrop-filter:blur(14px);
 border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));
 color:#251a00;font-weight:800;font-size:19px;
 box-shadow:0 6px 16px rgba(255,180,0,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.52);letter-spacing:.14em;margin-top:4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:rgba(255,255,255,.74);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(255,180,0,.14)}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--gold),var(--gold-2));
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
 background:rgba(255,255,255,.06);flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:12px;border:1px solid transparent;
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-gold{
 background:linear-gradient(135deg,var(--gold-2),var(--gold) 62%,var(--gold-deep));
 color:#251a00;box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,180,0,.38)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-line{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-line:hover{border-color:var(--gold);background:rgba(255,180,0,.08);transform:translateY(-2px)}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff;background:var(--navy);padding:52px 0 68px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.32;transform:scale(1.03)}
.hero::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(85% 65% at 10% 4%,rgba(67,232,255,.20),transparent 58%),
 radial-gradient(70% 60% at 92% 20%,rgba(255,180,0,.18),transparent 62%),
 linear-gradient(158deg,rgba(15,19,41,.95),rgba(26,31,61,.91) 54%,rgba(35,42,82,.80));
}
.hero-inner{position:relative;z-index:3}
.hero-shell{
 display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:36px;align-items:center;
 background:linear-gradient(135deg,rgba(26,31,61,.86),rgba(45,53,102,.70));
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-xl);
 padding:42px 44px;
 box-shadow:0 30px 70px rgba(9,12,30,.45);
}
.hero-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.04em;
 color:var(--gold-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.35);
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.18)}
.hero h1{margin-top:20px;font-size:clamp(28px,3.6vw,44px);color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.35)}
.hero h1 span{color:var(--gold-2)}
.hero-lead{margin-top:18px;max-width:640px;color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.9}
.hero-search{
 margin-top:26px;display:flex;gap:10px;align-items:center;max-width:620px;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
 border-radius:16px;padding:8px 8px 8px 4px;
}
.hero-search input{
 flex:1;min-width:0;background:transparent;border:0;color:#fff;font-size:15px;
 padding:10px 14px;outline:none;
}
.hero-search input::placeholder{color:rgba(255,255,255,.45)}
.hero-tags{margin-top:20px;display:flex;flex-wrap:wrap;gap:9px}
.hero-tags a{
 font-size:13px;color:rgba(255,255,255,.78);padding:6px 13px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
 transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.hero-tags a:hover{background:rgba(255,180,0,.16);border-color:rgba(255,180,0,.45);color:#fff}
.hero-panel{
 background:rgba(10,14,32,.55);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-lg);padding:22px 22px 18px;
}
.hero-panel h3{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.55);font-weight:600}
.stat{margin-top:16px;padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.14)}
.stat:last-child{border-bottom:0;padding-bottom:0}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--gold-2);letter-spacing:-.02em}
.stat span{font-size:13px;color:rgba(255,255,255,.62)}

/* 通用板块 */
.section{padding:72px 0}
.section-alt{background:var(--surface)}
.section-soft{background:linear-gradient(180deg,var(--surface-2),var(--bg))}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
 display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
 color:var(--gold-deep);background:rgba(255,180,0,.12);
 padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);color:var(--navy)}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9}
.divider{height:1px;background:var(--line);margin:0}

/* 活动卡片 */
.act-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.act-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-xs);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
 display:flex;flex-direction:column;
}
.act-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.act-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.tag{
 display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
 font-size:12px;font-weight:700;color:var(--navy-3);
 background:rgba(67,232,255,.14);border:1px solid rgba(67,232,255,.32);
}
.tag-gold{color:#6a4a00;background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.45)}
.act-date{font-size:12.5px;color:var(--muted);white-space:nowrap}
.act-card h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.act-card p{font-size:14.5px;color:var(--muted);line-height:1.85;flex:1}
.act-foot{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:12px;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:3px 9px}
.empty-hint{
 margin-top:26px;padding:18px 20px;border-radius:var(--radius);
 background:rgba(255,180,0,.10);border:1px dashed rgba(255,180,0,.45);
 color:var(--gold-deep);font-size:14.5px;
}

/* 机制拆解 */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.point-list{margin-top:24px;display:grid;gap:14px}
.point{
 display:flex;gap:14px;padding:18px 20px;border-radius:var(--radius);
 background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point:hover{transform:translateX(4px);box-shadow:var(--shadow-sm);border-color:rgba(255,180,0,.4)}
.point i{
 flex-shrink:0;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
 font-style:normal;font-weight:800;font-size:14px;color:#2a1d00;
 background:linear-gradient(140deg,var(--gold-2),var(--gold));
}
.point h4{font-size:16px;color:var(--navy);margin-bottom:4px}
.point p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* 时间线 */
.timeline{position:relative;margin-top:12px;padding-left:30px}
.timeline::before{
 content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--gold),rgba(255,180,0,.15));
 border-radius:2px;
}
.tl-item{position:relative;padding:0 0 26px 6px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
 content:"";position:absolute;left:-27px;top:7px;width:14px;height:14px;border-radius:50%;
 background:var(--surface);border:3px solid var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.14);
}
.tl-item h4{font-size:16.5px;color:var(--navy)}
.tl-item span{display:inline-block;margin:6px 0 8px;font-size:12.5px;font-weight:700;color:var(--gold-deep);letter-spacing:.06em}
.tl-item p{font-size:14.5px;color:var(--muted);line-height:1.85}

/* 档位 */
.tier-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.tier{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 20px;box-shadow:var(--shadow-xs);position:relative;overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tier:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.tier::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--gold),var(--gold-2))}
.tier h4{font-size:17px;color:var(--navy)}
.tier .req{margin-top:10px;font-size:13px;color:var(--muted)}
.tier .reward{margin-top:14px;font-size:22px;font-weight:800;color:var(--gold-deep);letter-spacing:-.02em}
.tier .desc{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8}
.tier .who{margin-top:14px;display:inline-block;font-size:12px;font-weight:700;color:var(--navy-3);background:rgba(67,232,255,.13);border:1px solid rgba(67,232,255,.3);padding:4px 10px;border-radius:999px}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px;box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease;
}
.scene:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.scene .num{font-size:13px;font-weight:800;color:var(--gold-deep);letter-spacing:.14em}
.scene h4{margin-top:10px;font-size:18px;color:var(--navy)}
.scene p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85}
.scene ul{margin-top:14px;display:grid;gap:8px}
.scene ul li{font-size:14px;color:var(--text);padding-left:18px;position:relative}
.scene ul li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--gold)}

/* 精选内容 */
.topic-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.topic-strip a{
 font-size:13.5px;font-weight:600;color:var(--navy-3);background:var(--surface);
 border:1px solid var(--line);border-radius:999px;padding:8px 16px;
 transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.topic-strip a:hover{border-color:var(--gold);color:var(--gold-deep);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.feature{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-xs);transition:transform .22s ease,box-shadow .22s ease;
}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.feature figure{margin:0;overflow:hidden}
.feature img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.feature:hover img{transform:scale(1.05)}
.feature .body{padding:20px 22px 24px}
.feature h4{font-size:17px;color:var(--navy)}
.feature p{margin-top:9px;font-size:14.5px;color:var(--muted);line-height:1.85}
.feature .meta{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}

/* 内容列表 */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-item{
 display:flex;flex-direction:column;gap:10px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.post-item h3{font-size:16.5px;color:var(--navy);line-height:1.6}
.post-item p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.post-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px dashed var(--line)}
.post-meta span{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:3px 9px}
.list-empty{
 padding:26px;border-radius:var(--radius);background:var(--surface);
 border:1px dashed var(--line);color:var(--muted);font-size:14.5px;text-align:center;
}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 margin-bottom:12px;padding:0 22px;box-shadow:var(--shadow-xs);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,180,0,.45);box-shadow:var(--shadow-sm)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:19px 30px 19px 0;position:relative;
 font-size:16px;font-weight:700;color:var(--navy);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";position:absolute;right:0;top:17px;font-size:20px;font-weight:700;color:var(--gold-deep);
 transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 20px;font-size:14.5px;color:var(--muted);line-height:1.9;border-top:1px dashed var(--line);padding-top:14px}

/* 订阅 */
.cta-band{
 background:linear-gradient(135deg,var(--navy),var(--navy-3) 70%,#333d78);
 border-radius:var(--radius-xl);padding:46px 48px;color:#fff;
 display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:34px;align-items:center;
 box-shadow:0 26px 60px rgba(19,24,54,.28);position:relative;overflow:hidden;
}
.cta-band::after{
 content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,180,0,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(21px,2.4vw,29px);color:#fff}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.76);font-size:15px;line-height:1.9}
.sub-form{position:relative;z-index:2;display:flex;gap:10px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:8px}
.sub-form input{flex:1;min-width:0;background:transparent;border:0;color:#fff;font-size:15px;padding:10px 14px;outline:none}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-tip{margin-top:12px;font-size:13px;color:var(--gold-2);min-height:20px;position:relative;z-index:2}

/* 页脚 */
.site-footer{background:#0d1128;color:rgba(255,255,255,.7);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.58);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-bottom{
 margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
 font-size:13px;color:rgba(255,255,255,.45);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a:hover{color:var(--gold-2)}

/* 响应式 */
@media (max-width:1080px){
 .hero-shell{grid-template-columns:1fr;padding:36px 32px}
 .hero-panel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:start}
 .hero-panel h3{grid-column:1/-1;margin-bottom:2px}
 .stat{margin-top:0;padding-bottom:0;border-bottom:0;padding-right:12px;border-right:1px dashed rgba(255,255,255,.14)}
 .stat:last-child{border-right:0;padding-right:0}
 .split{grid-template-columns:1fr;gap:28px}
 .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .act-grid,.scene-grid,.feature-grid,.post-list{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-band{grid-template-columns:1fr;padding:38px 34px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
 .header-inner{height:66px}
 .nav{
  position:absolute;top:66px;left:0;right:0;
  background:#12172f;flex-direction:column;align-items:stretch;gap:6px;
  padding:12px 18px 20px;display:none;
  border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 18px 40px rgba(9,12,30,.5);
 }
 .nav.is-open{display:flex}
 .nav-link{padding:12px 14px;font-size:15px}
 .nav-link.is-active::after{display:none}
 .nav-toggle{display:flex}
 .header-actions .btn-sm{display:none}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .section{padding:52px 0}
 .hero{padding:34px 0 46px}
 .hero-shell{padding:28px 22px;border-radius:var(--radius-lg)}
 .hero-search{flex-wrap:wrap;padding:10px}
 .hero-search input{flex:1 1 100%}
 .hero-search .btn{width:100%}
 .act-grid,.scene-grid,.feature-grid,.post-list{grid-template-columns:1fr}
 .tier-grid{grid-template-columns:1fr}
 .hero-panel{grid-template-columns:1fr;gap:16px}
 .stat{padding-right:0;border-right:0;border-bottom:1px dashed rgba(255,255,255,.14);padding-bottom:12px}
 .stat:last-child{border-bottom:0;padding-bottom:0}
 .cta-band{padding:30px 22px;border-radius:var(--radius-lg)}
 .sub-form{flex-wrap:wrap;padding:10px}
 .sub-form input{flex:1 1 100%}
 .sub-form .btn{width:100%}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
 .hero h1{font-size:26px}
 .brand-text{font-size:15px}
 .brand-text em{font-size:10px}
 .section-head h2{font-size:21px}
 .act-card,.scene,.feature .body,.post-item{padding-left:18px;padding-right:18px}
 .faq-item{padding:0 16px}
}