/* roulang page: index */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --ink-3:#8A8DA8;
  --line:#E4E5F0;
  --line-dark:#262350;
  --on-dark:#EDEEF7;
  --on-dark-2:#A7A9C4;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-sm:0 10px 30px rgba(12,10,32,.08);
  --shadow-md:0 18px 44px rgba(12,10,32,.14);
  --shadow-dark:0 18px 44px rgba(0,0,0,.45);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:120;padding:16px 18px 0;pointer-events:none}
.nav-shell{max-width:1160px;margin:0 auto}
.nav{
  position:relative;pointer-events:auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 20px;border-radius:var(--radius-pill);
  background:rgba(12,10,32,.74);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 14px 36px rgba(6,4,20,.36);
  transition:padding .25s ease,box-shadow .25s ease,max-width .25s ease;
}
.nav.is-scrolled{padding-top:6px;padding-bottom:6px;box-shadow:0 20px 48px rgba(6,4,20,.55)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;font-size:15px;font-weight:900;color:#0C0A20;
}
.brand-text{font-size:17px;line-height:1.2}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;color:#C9CBE4;transition:background .18s ease,color .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.3)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{height:40px;padding:0 20px;font-size:14px;flex:none}
.nav-toggle{
  display:none;width:44px;height:40px;margin-left:auto;border-radius:12px;
  background:rgba(255,255,255,.08);place-items:center;gap:4px;flex-direction:column;
  border:1px solid rgba(255,255,255,.12);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#EDEEF7;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,filter .18s ease,border-color .18s ease;
}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 26px rgba(108,75,255,.34)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(108,75,255,.44);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(143,118,255,.65);color:#fff}
.btn-ghost:hover{background:rgba(143,118,255,.16);transform:translateY(-2px);color:#fff}
.btn-outline{background:transparent;border-color:rgba(108,75,255,.45);color:var(--primary)}
.btn-outline:hover{background:rgba(108,75,255,.08);transform:translateY(-2px);color:var(--primary)}
.btn-accent{background:linear-gradient(135deg,var(--signal),#FF9C5E);color:#2A1206;box-shadow:0 12px 30px rgba(255,122,47,.34)}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-2px);color:#2A1206}
.btn-accent:active{transform:translateY(0);filter:brightness(.95)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;margin-top:-88px;padding:184px 0 96px;
  background:
    radial-gradient(circle at 16% 26%,rgba(108,75,255,.34),transparent 46%),
    radial-gradient(circle at 86% 10%,rgba(22,224,168,.16),transparent 42%),
    radial-gradient(circle at 62% 92%,rgba(108,75,255,.22),transparent 50%),
    var(--bg-deep);
  color:var(--on-dark);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(to bottom,#000,transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,#000,transparent 78%);
}
.hero::after{
  content:"";position:absolute;left:-12%;bottom:-42%;width:130%;height:420px;
  border-radius:50%;border-top:1px solid rgba(22,224,168,.35);pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;
  border-radius:var(--radius-pill);font-size:13px;
  color:var(--accent);background:rgba(22,224,168,.1);
  border:1px solid rgba(22,224,168,.32);
}
.hero-title{
  margin-top:22px;font-size:clamp(30px,4.2vw,48px);font-weight:800;
  line-height:1.2;letter-spacing:-.5px;color:#fff;
}
.hero-sub{margin-top:18px;font-size:18px;font-weight:600;color:var(--accent)}
.hero-desc{margin-top:14px;max-width:540px;font-size:16px;color:var(--on-dark-2);line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px}
.hero-points li{position:relative;padding-left:22px;font-size:14px;color:var(--on-dark-2)}
.hero-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px rgba(22,224,168,.18);
}
.hero-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 18px 44px rgba(0,0,0,.45);
  aspect-ratio:16/10;background:linear-gradient(135deg,var(--bg-deep-2),#241C63);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--bg-deep);padding-bottom:72px;color:var(--on-dark)}
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:28px 24px;border-radius:var(--radius-card);
  background:rgba(21,18,64,.72);border:1px solid var(--line-dark);
  box-shadow:var(--shadow-dark);
}
.stat{text-align:center;position:relative}
.stat + .stat::before{
  content:"";position:absolute;left:-12px;top:12%;height:76%;width:1px;
  background:linear-gradient(to bottom,transparent,rgba(255,255,255,.16),transparent);
}
.stat-num{display:block;font-family:var(--mono);font-size:34px;font-weight:800;color:var(--accent);line-height:1.2}
.stat-label{display:block;margin-top:4px;font-size:14px;color:var(--on-dark-2)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-light{background:var(--bg-light)}
.section-white{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.5px;line-height:1.3}
.section-title::after{
  content:"";display:block;width:44px;height:4px;border-radius:2px;margin-top:14px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.section-desc{margin-top:14px;font-size:15px;color:var(--ink-2);max-width:620px}
.section-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--primary);white-space:nowrap;
}
.section-more::after{content:"›";font-size:20px;line-height:1;transform:translateY(-1px)}
.section-more:hover{color:var(--primary-2)}

/* ---------- 玩法步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;left:26px;right:26px;top:27px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(108,75,255,.4) 0 8px,transparent 8px 16px);
}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(108,75,255,.3)}
.step-num{
  position:relative;z-index:2;display:grid;place-items:center;width:54px;height:54px;
  border-radius:50%;background:var(--surface);border:2px solid var(--primary);
  font-family:var(--mono);font-size:17px;font-weight:800;color:var(--primary);
  margin-bottom:18px;
}
.step-title{font-size:18px;font-weight:600;line-height:1.5}
.step-text{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- 奖励预览 ---------- */
.section-dark{background:var(--bg-deep);color:var(--on-dark);position:relative;overflow:hidden}
.section-dark .section-title{color:#fff}
.section-dark .section-desc{color:var(--on-dark-2)}
.section-dark::before{
  content:"";position:absolute;right:-16%;top:-30%;width:60%;height:70%;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.28),transparent 68%);pointer-events:none;
}
.reward-track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.reward-track::-webkit-scrollbar{display:none}
.reward-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:linear-gradient(160deg,rgba(21,18,64,.95),rgba(12,10,32,.95));
  border:1px solid var(--line-dark);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-dark);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(22,224,168,.4);box-shadow:0 24px 52px rgba(0,0,0,.55)}
.reward-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.4px;
  background:var(--signal);color:#2A1206;
}
.reward-badge.alt{background:transparent;border:1px solid rgba(22,224,168,.55);color:var(--accent)}
.reward-icon{
  width:64px;height:64px;border-radius:var(--radius-img);margin:20px 0 18px;
  display:grid;place-items:center;font-size:26px;
  border:1px solid rgba(143,118,255,.4);
  background:linear-gradient(135deg,rgba(108,75,255,.28),rgba(22,224,168,.14));
}
.reward-name{font-size:19px;font-weight:600;color:#fff;line-height:1.5}
.reward-cond{margin-top:10px;font-size:13px;color:var(--on-dark-2);line-height:1.7}
.track-dots{display:flex;justify-content:center;gap:8px}
.track-dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.22)}
.track-dots span.on{width:24px;border-radius:4px;background:var(--accent)}

/* ---------- 任务进度 ---------- */
.progress-list{display:grid;gap:20px;max-width:920px}
.progress-item{
  display:grid;grid-template-columns:220px 1fr 76px;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 22px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.progress-item:hover{border-color:rgba(108,75,255,.3);box-shadow:var(--shadow-md)}
.progress-name{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600}
.done-badge{
  display:grid;place-items:center;width:20px;height:20px;border-radius:50%;flex:none;
  background:var(--accent);color:#0C0A20;font-size:12px;font-weight:900;
}
.progress-bar{height:8px;border-radius:8px;background:#EDEEF5;overflow:hidden}
.progress-fill{height:100%;border-radius:8px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.progress-val{
  text-align:right;font-family:var(--mono);font-size:15px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--bg-deep-2);color:#fff;
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-140%;transform:translateX(-50%);
  width:1100px;height:1100px;border-radius:50%;
  border:1px solid rgba(22,224,168,.24);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:6%;bottom:-40%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.26),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-title{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.5px;line-height:1.35}
.cta-note{margin-top:16px;font-size:14px;color:var(--on-dark-2)}
.cta-actions{margin-top:30px;display:flex;justify-content:center;flex-wrap:wrap;gap:14px}

/* ---------- 分类导览 ---------- */
.cat-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.cat-card{
  display:flex;gap:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cat-card:hover{transform:translateY(-2px);border-color:rgba(108,75,255,.35);box-shadow:var(--shadow-md)}
.cat-card:nth-child(odd){flex-direction:row}
.cat-media{flex:0 0 42%;background:linear-gradient(135deg,var(--bg-deep-2),#2A2170);position:relative}
.cat-media img{width:100%;height:100%;object-fit:cover;min-height:200px}
.cat-body{padding:26px 24px;display:flex;flex-direction:column;gap:10px}
.cat-tag{
  align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:700;
  color:var(--primary);background:rgba(108,75,255,.1);
}
.cat-name{font-size:20px;font-weight:700;line-height:1.45}
.cat-text{font-size:14px;color:var(--ink-2);line-height:1.8}
.cat-go{margin-top:auto;font-size:14px;font-weight:600;color:var(--accent)}
.cat-card.wide{grid-column:1 / -1}
.cat-card.wide .cat-media{flex:0 0 46%}
.cat-card.wide .cat-name{font-size:24px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(108,75,255,.3);box-shadow:var(--shadow-md)}
.news-link{display:block;height:100%}
.news-media{aspect-ratio:16/9;background:linear-gradient(135deg,var(--bg-deep-2),#312A7E);overflow:hidden}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-body{padding:20px 22px 24px}
.news-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:8px;
  font-size:12px;font-weight:700;color:#0B6A50;background:rgba(22,224,168,.16);
}
.news-title{
  margin-top:14px;font-size:17px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-title{color:var(--primary)}
.news-excerpt{
  margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{display:block;margin-top:14px;font-family:var(--mono);font-size:13px;color:var(--ink-3)}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-icon{font-size:30px;color:var(--primary-2);display:block;margin-bottom:12px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;
  transition:background .18s ease,color .18s ease;
}
.faq-q:hover{background:rgba(108,75,255,.05);color:var(--primary)}
.faq-q .icon{
  flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(108,75,255,.4);color:var(--primary);font-size:16px;line-height:1;
  transition:transform .22s ease;
}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:var(--on-dark-2);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand-block .brand-text{font-size:17px}
.footer-brand-block .brand{color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;max-width:280px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-list li + li{margin-top:10px}
.footer-list a{font-size:14px;color:var(--on-dark-2)}
.footer-list a:hover{color:var(--accent)}
.footer-contact li{font-size:14px;line-height:1.8}
.footer-contact li + li{margin-top:10px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom .mono{color:var(--ink-3)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:var(--primary);color:#fff;font-size:18px;
  box-shadow:0 12px 30px rgba(108,75,255,.42);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,filter .18s ease;
  z-index:90;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{filter:brightness(1.08);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1239px){
  .hero-grid{gap:40px}
  .cat-grid{grid-template-columns:1fr 1fr}
  .cat-card.wide{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    padding:10px;border-radius:18px;
    background:rgba(12,10,32,.97);border:1px solid var(--line-dark);
    box-shadow:0 24px 50px rgba(4,3,16,.6);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:14px 16px;border-radius:12px;font-size:15px}
  .nav-link + .nav-link{border-top:1px solid rgba(255,255,255,.07)}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .hero{padding:158px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{max-width:560px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .site-header{padding:12px 14px 0}
  .nav{padding:8px 10px 8px 16px;gap:12px}
  .brand-text{font-size:15px}
  .hero{margin-top:-76px;padding:132px 0 60px}
  .hero-sub{font-size:16px}
  .hero-visual{max-width:100%}
  .stats{grid-template-columns:repeat(2,1fr);gap:18px;padding:22px 18px}
  .stat + .stat::before{display:none}
  .stat-num{font-size:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .steps{grid-template-columns:1fr}
  .reward-card{flex:0 0 78vw}
  .progress-item{grid-template-columns:1fr;gap:12px;padding:18px}
  .progress-val{text-align:left}
  .news-grid{grid-template-columns:1fr}
  .cat-card{flex-direction:column !important}
  .cat-media{flex:none}
  .cat-media img{min-height:180px;aspect-ratio:16/9}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
}
@media (max-width:519px){
  .hero-title{font-size:28px}
  .hero-actions .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .reward-card{flex:0 0 82vw}
}

/* roulang page: article */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --line:#E4E5F0;
  --line-deep:#262350;
  --text-on-deep:#EDEEF7;
  --text-on-deep-2:#A7A9C4;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-soft:0 10px 30px rgba(12,10,32,.08);
  --shadow-lift:0 18px 44px rgba(12,10,32,.16);
  --shadow-deep:0 18px 44px rgba(0,0,0,.45);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-light);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary-2);}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.5px;line-height:1.28;font-weight:800;}
p{margin:0 0 1.05em;}
ul,ol{margin:0;padding:0;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:16px 24px 0;pointer-events:none;}
.nav-shell{max-width:1160px;margin:0 auto;pointer-events:auto;}
.nav{
  display:flex;align-items:center;gap:20px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(12,10,32,.72);
  border:1px solid rgba(237,238,247,.14);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 34px rgba(12,10,32,.28);
  transition:padding .25s ease,box-shadow .25s ease,max-width .25s ease;
}
.nav.is-scrolled{box-shadow:0 18px 44px rgba(12,10,32,.5);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-on-deep);font-weight:700;}
.brand:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#0C0A20;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px rgba(108,75,255,.45);
}
.brand-text{font-size:16px;letter-spacing:.2px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:6px;list-style:none;margin-left:auto;}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--radius-pill);
  color:var(--text-on-deep-2);font-size:15px;font-weight:500;position:relative;
}
.nav-link:hover{color:#fff;background:rgba(237,238,247,.08);}
.nav-link.is-active{color:#fff;background:rgba(22,224,168,.14);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:2px;width:16px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(237,238,247,.2);background:rgba(237,238,247,.06);cursor:pointer;margin-left:auto;}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--text-on-deep);border-radius:2px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.35);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(108,75,255,.42);}
.btn-primary:active{transform:translateY(0);filter:brightness(.97);}
.btn-ghost{background:transparent;border-color:rgba(108,75,255,.5);color:var(--primary);}
.btn-ghost:hover{background:rgba(108,75,255,.08);color:var(--primary);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#08221A;box-shadow:0 10px 26px rgba(22,224,168,.32);}
.btn-accent:hover{color:#08221A;filter:brightness(1.05);transform:translateY(-2px);}
.btn-lg{height:54px;padding:0 30px;font-size:16px;}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--bg-deep);padding:104px 0 34px;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;list-style:none;font-size:13.5px;color:var(--text-on-deep-2);}
.crumb-list a{color:var(--text-on-deep-2);}
.crumb-list a:hover{color:var(--accent);}
.crumb-list .sep{opacity:.5;}
.crumb-list .current{color:var(--text-on-deep);font-weight:600;}

/* ============ 文章主体 ============ */
.article-wrap{background:linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-light) 260px);padding-bottom:88px;}
.article-card{
  background:var(--surface);border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);
  padding:44px 48px 40px;
}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(22,224,168,.14);color:#0B8F6A;
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
}
.article-title{font-size:clamp(24px,3.4vw,34px);line-height:1.35;margin:18px 0 16px;font-weight:800;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;color:var(--ink-2);font-size:14px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.article-cover{margin:26px 0 8px;}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;background:linear-gradient(135deg,#1B1745,#3A2E8A);}
.cover-cap{font-size:13px;color:var(--ink-2);margin-top:10px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.prose{
  max-width:820px;margin:34px auto 0;
  font-size:17px;line-height:1.85;color:#222441;
}
.prose h2{
  font-size:26px;font-weight:700;margin:2em 0 .7em;padding-left:14px;position:relative;color:var(--ink);
}
.prose h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--primary),var(--accent));}
.prose h3{font-size:20px;font-weight:600;margin:1.6em 0 .6em;color:var(--ink);}
.prose h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ink);}
.prose p{margin:0 0 1.15em;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em;}
.prose li{margin:.5em 0;line-height:1.8;}
.prose ul li::marker{color:var(--accent);}
.prose ol li::marker{color:var(--primary);font-weight:700;}
.prose blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--primary);
  background:#F4F2FF;border-radius:0 12px 12px 0;color:#33355A;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;margin:1.4em auto;background:linear-gradient(135deg,#221C58,#4A3AB0);}
.prose figure{margin:1.6em 0;}
.prose figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px;}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.prose a:hover{color:var(--primary-2);}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;font-size:15px;}
.prose thead th{background:var(--bg-deep-2);color:var(--text-on-deep);font-weight:600;text-align:left;}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line);}
.prose tbody tr:nth-child(even){background:#FAFAFF;}
.prose code{background:#F1F0FA;padding:2px 6px;border-radius:6px;font-size:14px;font-family:ui-monospace,Menlo,Consolas,monospace;}

/* 侧栏目录 */
.toc{display:none;}
.toc-inner{position:sticky;top:110px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 18px;box-shadow:var(--shadow-soft);}
.toc-title{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--ink-2);margin-bottom:12px;}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;font-size:14px;color:var(--ink-2);padding:6px 8px;border-radius:8px;border-left:2px solid transparent;line-height:1.5;}
.toc-list a:hover{background:#F4F2FF;color:var(--primary);border-left-color:var(--primary);}

/* 空态 */
.empty-state{
  max-width:620px;margin:48px auto;text-align:center;
  padding:56px 32px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(108,75,255,.14),rgba(22,224,168,.18));color:var(--primary);font-size:26px;font-weight:800;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;}

/* 标签行 */
.tag-row{max-width:820px;margin:40px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row .label{font-size:13px;color:var(--ink-2);letter-spacing:1px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  background:#F1F0FA;color:var(--ink-2);font-size:13.5px;transition:all .2s ease;
}
.tag:hover{background:rgba(108,75,255,.12);color:var(--primary);}

/* 相邻内容 */
.pager{max-width:820px;margin:34px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.pager-item{
  display:block;padding:18px 20px;background:var(--surface);
  border:1px solid var(--line);border-radius:16px;transition:all .2s ease;
}
.pager-item:hover{border-color:rgba(108,75,255,.45);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.pager-item .pager-k{font-size:12.5px;color:var(--ink-2);letter-spacing:1px;}
.pager-item .pager-t{font-size:15.5px;font-weight:600;color:var(--ink);margin-top:6px;line-height:1.5;}
.pager-item:hover .pager-t{color:var(--primary);}

/* 相关推荐 */
.section{padding:88px 0;}
.section-light{background:var(--bg-light);}
.section-deep{background:var(--bg-deep);color:var(--text-on-deep);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head p{color:var(--ink-2);font-size:15px;margin:8px 0 0;}
.section-deep .section-head p{color:var(--text-on-deep-2);}
.link-more{font-size:15px;font-weight:600;color:var(--primary);white-space:nowrap;}
.link-more:hover{color:var(--primary-2);}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:rgba(108,75,255,.4);}
.rec-thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#1B1745,#3A2E8A);overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:18px 20px 22px;}
.rec-body .badge{margin-bottom:10px;}
.rec-body h3{font-size:18px;line-height:1.45;color:var(--ink);}
.rec-card:hover .rec-body h3{color:var(--primary);}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-pill);background:rgba(22,224,168,.14);color:#0B8F6A;font-size:12px;font-weight:700;}
.badge-purple{background:rgba(108,75,255,.12);color:var(--primary);}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--bg-deep);padding:80px 0;}
.cta-band::before{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.5),rgba(108,75,255,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-220px;width:600px;height:600px;border-radius:50%;
  border:1px solid rgba(22,224,168,.22);
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto;}
.cta-inner h2{color:#fff;font-size:clamp(24px,3.4vw,36px);margin-bottom:16px;}
.cta-inner p{color:var(--text-on-deep-2);font-size:15.5px;margin-bottom:28px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--bg-deep);color:var(--text-on-deep-2);padding:72px 0 26px;border-top:1px solid var(--line-deep);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand-block .brand{margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.8;color:var(--text-on-deep-2);max-width:280px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-list{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-list a{color:var(--text-on-deep-2);}
.footer-list a:hover{color:var(--accent);}
.footer-contact li{line-height:1.7;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-deep);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-on-deep-2);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;width:48px;height:48px;border-radius:50%;
  border:1px solid rgba(108,75,255,.4);background:var(--surface);color:var(--primary);
  font-size:18px;font-weight:700;cursor:pointer;box-shadow:var(--shadow-soft);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary);color:#fff;}

/* 响应式 */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,820px) 244px;justify-content:center;gap:40px;}
  .prose{margin-left:0;margin-right:0;max-width:none;}
  .toc{display:block;}
}
@media (max-width:991px){
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 12px);
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(12,10,32,.96);border:1px solid rgba(237,238,247,.14);
    border-radius:18px;padding:8px;display:none;box-shadow:var(--shadow-deep);
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{padding:0 16px;height:48px;line-height:48px;border-radius:12px;}
  .nav-link.is-active::after{display:none;}
  .nav-link + .nav-link{}
  .nav-menu li + li{border-top:1px solid rgba(237,238,247,.08);}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .nav{position:relative;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .site-header{padding:10px 12px 0;}
  .brand-text{font-size:15px;}
  .crumb-bar{padding:86px 0 26px;}
  .article-card{padding:28px 20px 26px;border-radius:16px;}
  .article-wrap{background:linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-light) 200px);padding-bottom:56px;}
  .prose{font-size:16px;line-height:1.8;margin-top:26px;}
  .prose h2{font-size:22px;}
  .prose h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;gap:18px;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-band{padding:58px 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .article-meta{gap:12px;font-size:13px;}
  .brand-mark{width:30px;height:30px;font-size:15px;}
  .btn-lg{height:50px;width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --ink-on-dark:#EDEEF7;
  --ink-on-dark-2:#A7A9C4;
  --line:#E4E5F0;
  --line-dark:#262350;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 10px 30px rgba(12,10,32,.08);
  --shadow-2:0 18px 44px rgba(12,10,32,.16);
  --shadow-dark:0 18px 44px rgba(0,0,0,.45);
  --container:1240px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,opacity .2s ease,filter .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.28)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(108,75,255,.36)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid rgba(108,75,255,.5)}
.btn-ghost:hover{background:rgba(108,75,255,.08);transform:translateY(-2px);border-color:var(--primary)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark-ghost{background:transparent;color:var(--accent);border:1px solid rgba(22,224,168,.6)}
.btn-dark-ghost:hover{background:rgba(22,224,168,.12);transform:translateY(-2px)}
.btn-signal{background:linear-gradient(135deg,var(--signal),#FF9B5E);color:#fff;box-shadow:0 12px 28px rgba(255,122,47,.3)}
.btn-signal:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-signal:active{transform:translateY(0)}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-accent{background:rgba(22,224,168,.14);color:#08a87c}
.badge-primary{background:rgba(108,75,255,.12);color:var(--primary)}
.badge-dark{background:rgba(22,224,168,.16);color:var(--accent);border:1px solid rgba(22,224,168,.35)}
.badge-signal{background:rgba(255,122,47,.16);color:#d9560d}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;padding:16px 24px 0;transition:padding .25s ease}
.site-header.is-scrolled{padding-top:8px}
.site-header.is-scrolled .nav{padding:6px 10px 6px 14px;box-shadow:var(--shadow-dark)}
.nav-shell{max-width:1160px;margin:0 auto}
.nav{
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(12,10,32,.72);
  border:1px solid rgba(255,255,255,.13);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:padding .25s ease,box-shadow .25s ease;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#0C0A20;font-weight:800;font-size:16px;
  box-shadow:0 6px 16px rgba(108,75,255,.35);
}
.brand-text{color:var(--ink-on-dark);font-size:16px;font-weight:700;letter-spacing:-.3px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--radius-pill);
  color:var(--ink-on-dark-2);font-size:14.5px;font-weight:500;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-link.is-active{color:var(--accent)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--accent);
}
.nav-cta{flex:0 0 auto;height:40px;padding:0 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  border-radius:12px;border:1px solid rgba(255,255,255,.16);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-on-dark);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 页头 ---------- */
.page-hero{position:relative;background:var(--bg-deep);color:var(--ink-on-dark);padding:120px 0 110px;overflow:hidden}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(12,10,32,.78),rgba(12,10,32,.95)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.6;
}
.page-hero-dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);
  background-size:34px 34px;opacity:.28;
}
.page-hero-arc{
  position:absolute;left:50%;bottom:-520px;transform:translateX(-50%);
  width:1240px;height:1240px;border-radius:50%;
  border:1px solid rgba(22,224,168,.3);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-on-dark-2);margin-bottom:26px}
.breadcrumb a{color:var(--ink-on-dark-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:var(--ink-on-dark)}
.page-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.page-hero-copy h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.2;letter-spacing:-.5px;
  margin:18px 0 18px;
}
.page-hero-copy .lead{font-size:17px;color:var(--ink-on-dark-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.page-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:var(--shadow-dark);
}

/* ---------- 数据带 ---------- */
.stat-band{position:relative;z-index:5;margin-top:-58px}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--surface);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);border:1px solid var(--line);
  padding:28px 32px;
}
.stat-item{text-align:left;padding-right:16px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;letter-spacing:-1px}
.stat-num small{font-size:14px;font-weight:600;margin-left:2px;color:var(--primary-2)}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--ink-2)}

/* ---------- 双栏主体 + 目录 ---------- */
.rules-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 236px;
  gap:52px;padding-top:88px;padding-bottom:8px;
  align-items:start;
}
.rules-main{display:flex;flex-direction:column;gap:76px}
.section-title{
  font-size:26px;font-weight:700;letter-spacing:-.4px;
}
.story{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;scroll-margin-top:120px}
.story-copy h2{
  position:relative;padding-left:16px;
  font-size:26px;font-weight:700;line-height:1.3;letter-spacing:-.4px;
}
.story-copy h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.story-copy p{margin-top:16px;color:var(--ink-2);font-size:16px;line-height:1.85}
.story-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.story-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2)}
.story-points li::before{
  content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.story-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow-1);
}
.story.is-reverse .story-media{order:-1}

.sticky-toc{
  position:sticky;top:112px;align-self:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px 18px;
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--ink-2);text-transform:uppercase;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:var(--ink-2);border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--primary);background:rgba(108,75,255,.07);border-left-color:var(--primary)}
.toc-list a.is-current{color:var(--primary);font-weight:600;border-left-color:var(--primary);background:rgba(108,75,255,.08)}

/* ---------- 核对清单 ---------- */
.check-section{scroll-margin-top:120px}
.check-section .section-title{margin-bottom:10px}
.check-section .section-sub{color:var(--ink-2);font-size:15px;max-width:640px;margin-bottom:28px}
.checklist{
  display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:26px 28px;
}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink)}
.check-mark{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:50%;margin-top:3px;
  background:rgba(22,224,168,.2);color:#067a5b;font-size:12px;font-weight:800;
}

/* ---------- CTA ---------- */
.cta-section{position:relative;background:var(--bg-deep);color:var(--ink-on-dark);overflow:hidden;margin-top:88px}
.cta-section::before{
  content:"";position:absolute;left:50%;top:-560px;transform:translateX(-50%);
  width:1180px;height:1180px;border-radius:50%;
  border:1px solid rgba(22,224,168,.22);
}
.cta-inner{
  position:relative;z-index:2;padding:84px 0;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:18px;
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.5px}
.cta-inner p{color:var(--ink-on-dark-2);font-size:15px;max-width:560px}
.cta-inner .btn{margin-top:8px}

/* ---------- 互链卡 ---------- */
.cross-section{padding:88px 0 0}
.cross-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.cross-head p{color:var(--ink-2);font-size:15px;margin-top:8px}
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(108,75,255,.4)}
.cross-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cross-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.cross-body h3{font-size:19px;font-weight:600;letter-spacing:-.3px}
.cross-card:hover h3{color:var(--primary)}
.cross-body p{font-size:14.5px;color:var(--ink-2);flex:1}
.cross-more{font-size:14px;font-weight:600;color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:var(--ink-on-dark-2);margin-top:0;padding:72px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand-block .brand{margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:var(--ink-on-dark-2);max-width:280px}
.footer-title{font-size:15px;font-weight:700;color:var(--ink-on-dark);margin-bottom:16px;letter-spacing:-.2px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:var(--ink-on-dark-2)}
.footer-list a:hover{color:var(--accent)}
.footer-contact li{font-size:14px;color:var(--ink-on-dark-2)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  font-size:13px;color:var(--ink-on-dark-2);
}
.footer-bottom .mono{color:#6f7196}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;z-index:80;
  width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;
  box-shadow:0 12px 28px rgba(108,75,255,.35);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{filter:brightness(1.06)}

/* ---------- 响应式 ---------- */
@media (max-width:1239px){
  .rules-layout{grid-template-columns:minmax(0,1fr) 210px;gap:36px}
}
@media (max-width:1024px){
  .page-hero{padding:104px 0 96px}
  .page-hero-inner{grid-template-columns:1fr;gap:36px}
  .page-hero-media img{max-height:280px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:24px}
  .stat-item:nth-child(2){border-right:0}
  .rules-layout{grid-template-columns:minmax(0,1fr);padding-top:64px}
  .sticky-toc{display:none}
  .cross-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    background:rgba(12,10,32,.97);
    border:1px solid rgba(255,255,255,.13);border-radius:18px;
    padding:10px;display:none;box-shadow:var(--shadow-dark);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu li + li{border-top:1px solid rgba(255,255,255,.08)}
  .nav-link{display:block;padding:0 14px;line-height:48px;border-radius:10px;font-size:15px}
  .nav-link.is-active::after{display:none}
  .nav{position:relative;border-radius:18px;padding:10px 12px}
  .site-header{padding:12px 18px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero{padding:96px 0 84px}
  .page-hero-copy h1{margin:14px 0 14px}
  .page-hero-copy .lead{font-size:16px}
  .stat-band{margin-top:-46px}
  .stat-grid{grid-template-columns:repeat(2,1fr);padding:20px}
  .stat-item{border-right:0;padding-right:0}
  .stat-num{font-size:25px}
  .rules-layout{padding-top:52px}
  .rules-main{gap:56px}
  .story{grid-template-columns:1fr;gap:22px}
  .story.is-reverse .story-media{order:0}
  .story-media img{aspect-ratio:16/10}
  .checklist{grid-template-columns:1fr;padding:20px 20px}
  .cta-inner{padding:64px 0}
  .cross-section{padding:64px 0 0}
  .cross-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:36px}
  .to-top{right:18px;bottom:18px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .nav-cta{display:none}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .stat-item{padding-bottom:14px;border-bottom:1px solid var(--line)}
  .stat-item:last-child{padding-bottom:0;border-bottom:0}
  .section-title{font-size:22px}
  .story-copy h2{font-size:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --ink-inv:#EDEEF7;
  --ink-inv-2:#A7A9C4;
  --line:#E4E5F0;
  --line-deep:#262350;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --shadow-card:0 10px 30px rgba(12,10,32,.08);
  --shadow-card-hover:0 18px 40px rgba(12,10,32,.16);
  --shadow-deep:0 18px 44px rgba(0,0,0,.45);
  --container:1240px;
  --sec-gap:88px;
  --font: "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono: ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--primary-2)}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer}
input,textarea{font-family:inherit;font-size:inherit}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:16px;z-index:60;padding:0 0 4px}
.nav-shell{max-width:1160px;margin:0 auto;padding:0 18px}
.nav{
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(12,10,32,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 12px 32px rgba(12,10,32,.30);
  transition:padding .25s ease,box-shadow .25s ease,background .25s ease;
}
.nav.is-scrolled{padding:7px 10px 7px 16px;box-shadow:0 16px 40px rgba(12,10,32,.42);background:rgba(12,10,32,.86)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-inv)}
.brand:hover{color:#fff}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;color:#0C0A20;
  background:linear-gradient(135deg,var(--accent),#7BF3CE);
  box-shadow:0 0 0 1px rgba(22,224,168,.35),0 6px 18px rgba(22,224,168,.25);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto}
.nav-link{
  display:block;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-inv-2);position:relative;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:#fff;background:rgba(22,224,168,.14);box-shadow:inset 0 0 0 1px rgba(22,224,168,.32)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:2px;width:16px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-toggle{display:none;width:42px;height:42px;border-radius:14px;margin-left:auto;padding:11px 10px;background:rgba(255,255,255,.07)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-inv);margin:4px 0;transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.34)}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(108,75,255,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:transparent;color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary)}
.btn-ghost:hover{color:var(--primary-2);box-shadow:inset 0 0 0 1px var(--primary-2);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#0C0A20;box-shadow:0 10px 24px rgba(22,224,168,.28)}
.btn-accent:hover{color:#0C0A20;filter:brightness(1.05);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:var(--ink-inv);box-shadow:inset 0 0 0 1px rgba(237,238,247,.45)}
.btn-outline-light:hover{color:#fff;box-shadow:inset 0 0 0 1px var(--accent);transform:translateY(-2px)}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.nav-cta{flex:0 0 auto;height:40px;padding:0 18px}

/* ---------- 页头 KV ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg-deep);
  padding:96px 0 84px;
  margin-top:-58px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 220px at 12% 10%,rgba(108,75,255,.32),transparent 70%),
    radial-gradient(520px 260px at 88% 90%,rgba(22,224,168,.18),transparent 72%),
    linear-gradient(180deg,rgba(12,10,32,.62),rgba(12,10,32,.94));
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,52px);font-weight:800;
  letter-spacing:-.5px;line-height:1.2;max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.page-hero .hero-lead{
  margin-top:18px;color:var(--ink-inv-2);font-size:17px;max-width:640px;
}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.fact{
  display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
  color:var(--ink-inv);font-size:14px;
}
.fact b{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--accent);font-size:15px}
.hero-visual{
  margin-top:44px;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-deep);
  box-shadow:0 18px 44px rgba(0,0,0,.45),inset 0 0 0 1px rgba(255,255,255,.10);
  aspect-ratio:16/6;position:relative;
  background:linear-gradient(135deg,#151240,#0C0A20);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.92}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:13.5px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#B9BBD1}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding-top:var(--sec-gap)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.5px;line-height:1.3;
}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:rgba(108,75,255,.10);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  background:var(--surface);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:44px 44px 20px;
}
.timeline{position:relative;padding-left:70px}
.timeline::before{
  content:"";position:absolute;left:25px;top:10px;bottom:36px;width:1px;
  background:linear-gradient(180deg,var(--primary),rgba(22,224,168,.55));
}
.tl-item{position:relative;padding:0 0 40px}
.tl-node{
  position:absolute;left:-70px;top:0;
  width:50px;height:50px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;
  color:var(--primary);background:var(--surface);
  box-shadow:inset 0 0 0 1.5px rgba(108,75,255,.45),0 6px 18px rgba(12,10,32,.08);
}
.tl-item.is-current .tl-node{
  color:#0C0A20;background:var(--accent);box-shadow:0 0 0 6px rgba(22,224,168,.16),0 10px 24px rgba(22,224,168,.28);
  width:56px;height:56px;left:-73px;font-size:16px;
}
.tl-body h3{font-size:19px;font-weight:600;letter-spacing:-.2px}
.tl-body>p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:720px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--ink-2);
  background:var(--bg-light);border-radius:var(--r-pill);
  padding:5px 13px;box-shadow:inset 0 0 0 1px var(--line);
}
.tag.is-accent{color:#0B7F62;background:rgba(22,224,168,.12);box-shadow:inset 0 0 0 1px rgba(22,224,168,.35)}
.tl-photo{
  margin-top:18px;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/7;background:linear-gradient(135deg,#151240,#0C0A20);
}
.tl-photo img{width:100%;height:100%;object-fit:cover}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prep-card{
  background:var(--surface);border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.prep-card h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}
.check-dot{
  width:22px;height:22px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,224,168,.18);color:#0B7F62;font-size:13px;font-weight:700;
}
.prep-card p{margin-top:10px;color:var(--ink-2);font-size:14.5px}

/* ---------- 阶段节奏（深色面板） ---------- */
.rhythm{
  border-radius:var(--r-card);padding:44px 40px;color:var(--ink-inv);
  background:
    radial-gradient(420px 200px at 88% 8%,rgba(108,75,255,.42),transparent 70%),
    radial-gradient(360px 200px at 6% 96%,rgba(22,224,168,.16),transparent 72%),
    var(--bg-deep);
  box-shadow:0 18px 44px rgba(0,0,0,.35);
  position:relative;overflow:hidden;
}
.rhythm::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(22,224,168,.22);
}
.rhythm h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.4px}
.rhythm .rhythm-sub{margin-top:12px;color:var(--ink-inv-2);font-size:15px;max-width:620px}
.rhythm-list{position:relative;z-index:2;margin-top:32px;display:grid;gap:14px}
.rhythm-row{
  display:grid;grid-template-columns:150px 1fr 96px;align-items:center;gap:18px;
  padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.09);
}
.rhythm-row .r-name{font-size:15px;font-weight:600;color:#fff}
.rhythm-row .r-desc{font-size:14px;color:var(--ink-inv-2)}
.rhythm-row .r-time{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:15px;color:var(--accent);text-align:right;white-space:nowrap;
}

/* ---------- 自查要点 ---------- */
.selfcheck{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border-radius:var(--r-card);
  padding:22px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.check-item .idx{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;
  color:var(--primary);background:rgba(108,75,255,.10);
  border-radius:8px;padding:4px 9px;flex:0 0 auto;
}
.check-item h3{font-size:16px;font-weight:600}
.check-item p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:background .18s ease;
  border-radius:10px;
}
.faq-q:hover{background:rgba(108,75,255,.05)}
.faq-icon{
  position:relative;width:20px;height:20px;flex:0 0 auto;
  transition:transform .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 4px 22px;color:var(--ink-2);font-size:15px;line-height:1.8;max-width:720px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--bg-deep);color:var(--ink-inv);
  padding:64px 48px;text-align:center;
  box-shadow:0 20px 50px rgba(12,10,32,.35);
}
.cta-band::before{
  content:"";position:absolute;left:-160px;bottom:-220px;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(22,224,168,.25);
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-180px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(108,75,255,.42),transparent 68%);
}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.5px}
.cta-band p{margin-top:14px;color:var(--ink-inv-2);font-size:15.5px}
.cta-actions{margin-top:30px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:18px;font-size:13px;color:#8A8CA8}

/* ---------- 分类互链 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cross-card{
  display:block;background:var(--surface);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);color:var(--ink);
  transition:transform .2s ease,box-shadow .2s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);color:var(--ink)}
.cross-card .thumb{aspect-ratio:16/9;background:linear-gradient(135deg,#151240,#0C0A20);position:relative;overflow:hidden}
.cross-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cross-card:hover .thumb img{transform:scale(1.04)}
.cross-card .body{padding:20px 22px 24px}
.cross-card h3{font-size:17px;font-weight:600}
.cross-card p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}
.cross-card .arrow{margin-top:14px;font-size:14px;font-weight:600;color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec-gap);
  background:var(--bg-deep);color:var(--ink-inv-2);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand-block .brand{margin-bottom:16px}
.footer-brand-block .brand-text{color:#fff}
.footer-about{font-size:14px;line-height:1.8;max-width:300px;color:var(--ink-inv-2)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.2px}
.footer-list li{margin-bottom:10px;font-size:14px}
.footer-list a{color:var(--ink-inv-2)}
.footer-list a:hover{color:var(--accent)}
.footer-contact li{color:var(--ink-inv-2);font-size:14px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-deep);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8A8CA8;
}
.footer-bottom .mono{color:#8A8CA8}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(108,75,255,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{filter:brightness(1.08);color:#fff}

img.is-broken{background:linear-gradient(135deg,#151240,#0C0A20)}

/* ---------- 响应式 ---------- */
@media (max-width:1240px){
  .nav-menu{margin-left:0}
  .nav-link{padding:8px 11px;font-size:14.5px}
}
@media (max-width:991px){
  .site-header{top:10px}
  .nav{flex-wrap:wrap;border-radius:18px;padding:10px 12px}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .nav-menu{
    order:3;flex:1 0 100%;flex-direction:column;align-items:stretch;gap:0;
    margin:10px 0 0;padding:6px 0 0;border-top:1px solid rgba(255,255,255,.10);
    display:none;
  }
  .nav.is-open .nav-menu{display:flex}
  .nav-link{padding:13px 14px;font-size:15px;border-radius:12px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(22,224,168,.14)}
  .page-hero{padding:80px 0 64px;margin-top:-52px}
  .prep-grid{grid-template-columns:repeat(2,1fr)}
  .cross-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .timeline-wrap{padding:32px 26px 12px}
  .rhythm{padding:34px 26px}
  .rhythm-row{grid-template-columns:130px 1fr 90px}
}
@media (max-width:767px){
  :root{--sec-gap:52px}
  .container{padding:0 18px}
  .nav-shell{padding:0 12px}
  body{font-size:16px;line-height:1.8}
  .page-hero{padding:70px 0 52px}
  .page-hero .hero-lead{font-size:15.5px}
  .hero-visual{aspect-ratio:16/9;margin-top:30px}
  .timeline{padding-left:52px}
  .timeline::before{left:19px}
  .tl-node{left:-52px;width:40px;height:40px;font-size:13.5px}
  .tl-item.is-current .tl-node{width:44px;height:44px;left:-54px}
  .prep-grid{grid-template-columns:1fr}
  .selfcheck{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .rhythm-row{grid-template-columns:1fr;gap:8px}
  .rhythm-row .r-time{text-align:left}
  .cta-band{padding:44px 24px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
  .timeline-wrap{padding:26px 18px 8px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .section-head h2{font-size:22px}
  .tl-body h3{font-size:17px}
}

/* roulang page: category2 */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --accent-ink:#0E9E77;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --line:#E4E5F0;
  --line-dark:#262350;
  --text-on-dark:#EDEEF7;
  --text-on-dark-2:#A7A9C4;
  --warning:#FFB020;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(12,10,32,.08);
  --shadow-card-hover:0 18px 40px rgba(12,10,32,.16);
  --shadow-dark:0 18px 44px rgba(0,0,0,.45);
  --container:1240px;
  --section:88px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* 容器 */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.32);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(108,75,255,.42);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:transparent;border-color:rgba(108,75,255,.45);color:var(--primary);}
.btn-ghost:hover{background:rgba(108,75,255,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(108,75,255,.14);}
.btn-accent{background:var(--accent);color:#06231A;box-shadow:0 12px 28px rgba(22,224,168,.28);}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 36px rgba(22,224,168,.36);}
.btn-accent:active{transform:translateY(0);filter:brightness(.96);}
.btn-outline-light{background:transparent;border-color:rgba(237,238,247,.35);color:var(--text-on-dark);}
.btn-outline-light:hover{background:rgba(237,238,247,.1);transform:translateY(-2px);}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:90;padding:16px 18px 0;}
.nav-shell{max-width:1160px;margin:0 auto;}
.nav{
  display:flex;align-items:center;gap:10px;
  background:rgba(12,10,32,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(237,238,247,.14);
  border-radius:var(--radius-pill);
  padding:10px 12px 10px 18px;
  transition:padding .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled .nav{box-shadow:0 18px 40px rgba(0,0,0,.38);padding:8px 10px 8px 16px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;order:1;margin-right:auto;}
.brand-mark{
  width:34px;height:34px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-size:16px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 6px 16px rgba(108,75,255,.4);
}
.brand-text{font-size:15px;letter-spacing:.2px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;order:2;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-on-dark-2);transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.32);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{order:3;height:40px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;order:2;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(237,238,247,.18);background:rgba(255,255,255,.05);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-on-dark);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);}

/* 面包屑 */
.crumb{padding:20px 0 0;font-size:13px;color:var(--ink-2);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:#B9BBD0;}
.crumb a{color:var(--ink-2);transition:color .2s ease;}
.crumb a:hover{color:var(--primary);}
.crumb .current{color:var(--ink);font-weight:600;}

/* 页头 */
.page-hero{position:relative;margin-top:18px;border-radius:26px;overflow:hidden;background:var(--bg-deep);color:var(--text-on-dark);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(12,10,32,.97) 0%,rgba(12,10,32,.82) 52%,rgba(21,18,64,.6) 100%);
}
.page-hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  padding-top:64px;padding-bottom:64px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:5px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(22,224,168,.42);color:var(--accent);
  font-size:13px;letter-spacing:1.6px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.22;font-weight:800;letter-spacing:-.5px;
}
.page-hero-sub{margin-top:16px;font-size:17px;color:var(--text-on-dark-2);max-width:32em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(237,238,247,.14);}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* 板块 */
.section{padding:var(--section) 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,3.2vw,32px);font-weight:700;letter-spacing:-.4px;}
.section-head p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:56em;}
.link-more{color:var(--primary);font-weight:600;font-size:15px;border-bottom:1px solid rgba(108,75,255,.35);padding-bottom:2px;transition:border-color .2s ease,color .2s ease;}
.link-more:hover{color:var(--primary-2);border-color:var(--primary-2);}

/* 筛选胶囊 */
.filter-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.pill{
  height:40px;padding:0 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.pill:hover{border-color:rgba(108,75,255,.5);color:var(--primary);transform:translateY(-2px);}
.pill.is-on{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(108,75,255,.3);}
.pill.is-on:hover{color:#fff;transform:translateY(-2px);}

/* 项目卡网格 */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.proj-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.proj-card:hover{transform:translateY(-2px);border-color:rgba(108,75,255,.55);box-shadow:var(--shadow-card-hover);}
.proj-thumb{
  position:relative;display:block;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,#151240,#0C0A20);
}
.proj-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.proj-card:hover .proj-thumb img{transform:scale(1.05);}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.4px;
}
.badge-float{position:absolute;top:12px;left:12px;z-index:1;box-shadow:0 6px 16px rgba(12,10,32,.22);}
.badge-accent{background:var(--accent);color:#06231A;}
.badge-primary{background:var(--primary);color:#fff;}
.badge-signal{background:var(--signal);color:#fff;}
.badge-soft{background:rgba(108,75,255,.12);color:var(--primary);}
.proj-body{display:flex;flex-direction:column;gap:10px;padding:18px 18px 20px;flex:1;}
.proj-body h3{font-size:19px;font-weight:600;letter-spacing:-.2px;transition:color .2s ease;}
.proj-card:hover .proj-body h3{color:var(--primary);}
.proj-desc{
  color:var(--ink-2);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.proj-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.proj-meta li{
  font-size:13px;color:var(--ink-2);background:var(--bg-light);
  border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 11px;
  font-variant-numeric:tabular-nums;
}

/* 数据条带 */
.band{position:relative;overflow:hidden;background:var(--bg-deep);color:var(--text-on-dark);padding:58px 0;}
.band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(237,238,247,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.32;
}
.band::after{
  content:"";position:absolute;left:-12%;top:-140%;width:70%;height:280%;
  border-radius:50%;border:1px solid rgba(22,224,168,.28);
  transform:rotate(-8deg);
}
.stats-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:18px 20px;border-radius:var(--radius-card);border:1px solid var(--line-dark);background:rgba(21,18,64,.55);}
.stat-num{display:block;font-family:var(--mono);font-size:32px;font-weight:700;color:var(--accent);line-height:1.2;}
.stat-label{display:block;margin-top:6px;font-size:14px;color:var(--text-on-dark-2);}

/* 选择建议 */
.tips{display:grid;grid-template-columns:.88fr 1.12fr;gap:48px;align-items:center;}
.tips-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);}
.tips-media img{width:100%;aspect-ratio:1/1;object-fit:cover;}
.tip-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);}
.tip-item:first-child{padding-top:0;}
.tip-item:last-child{border-bottom:0;padding-bottom:0;}
.tip-num{
  flex:0 0 40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:15px;font-weight:700;
  color:var(--primary);background:rgba(108,75,255,.08);border:1px solid rgba(108,75,255,.35);
}
.tip-body h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.tip-body p{color:var(--ink-2);font-size:15px;line-height:1.75;}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto;}
.acc{border-top:1px solid var(--line);}
.acc-item{border-bottom:1px solid var(--line);}
.acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 6px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.acc-btn:hover{background:rgba(108,75,255,.05);color:var(--primary);}
.acc-icon{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.acc-icon::before{width:11px;height:1.6px;}
.acc-icon::after{width:1.6px;height:11px;}
.acc-btn[aria-expanded="true"] .acc-icon{transform:rotate(45deg);border-color:var(--primary);background:rgba(108,75,255,.1);}
.acc-btn[aria-expanded="true"] .acc-icon::before,
.acc-btn[aria-expanded="true"] .acc-icon::after{background:var(--primary);}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.acc-panel p{padding:0 6px 20px;color:var(--ink-2);font-size:15px;line-height:1.8;}

/* CTA */
.cta-band{position:relative;overflow:hidden;background:var(--bg-deep);color:var(--text-on-dark);padding:84px 0;text-align:center;}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-560px;transform:translateX(-50%);
  width:880px;height:880px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.42),transparent 66%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:18px;}
.cta-inner h2{font-size:clamp(24px,3.6vw,34px);font-weight:800;letter-spacing:-.4px;}
.cta-inner p{color:var(--text-on-dark-2);font-size:16px;max-width:34em;}
.cta-note{font-size:13px;color:var(--text-on-dark-2);}

/* 互链 */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-card{
  display:flex;flex-direction:column;gap:10px;padding:26px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cross-card:hover{transform:translateY(-2px);border-color:rgba(108,75,255,.55);box-shadow:var(--shadow-card-hover);}
.cross-card h3{font-size:18px;font-weight:600;}
.cross-card p{color:var(--ink-2);font-size:14.5px;line-height:1.7;}
.cross-card .go{color:var(--primary);font-weight:600;font-size:14px;margin-top:4px;}

/* 页脚 */
.site-footer{background:var(--bg-deep);color:var(--text-on-dark-2);padding:64px 0 24px;border-top:1px solid var(--line-dark);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.site-footer .brand{margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.8;max-width:30em;}
.footer-title{font-size:15px;font-weight:600;color:var(--text-on-dark);margin-bottom:14px;}
.footer-list li{margin-bottom:10px;font-size:14px;}
.footer-list a{color:var(--text-on-dark-2);transition:color .2s ease;}
.footer-list a:hover{color:var(--accent);}
.footer-contact li{line-height:1.7;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(237,238,247,.1);
  font-size:13px;color:var(--text-on-dark-2);
}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:48px;height:48px;border-radius:50%;cursor:pointer;
  border:1px solid rgba(108,75,255,.35);background:var(--surface);color:var(--primary);
  display:grid;place-items:center;
  box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .25s ease;
}
.to-top:hover{transform:translateY(-3px);}
.to-top.is-show{opacity:1;visibility:visible;}

@media (max-width:1239px){
  .container{padding:0 22px;}
  .section{padding:76px 0;}
}
@media (max-width:991px){
  .nav{flex-wrap:wrap;gap:10px;padding:10px 14px;border-radius:18px;}
  .nav-toggle{display:flex;}
  .brand{order:1;}
  .nav-toggle{order:2;}
  .nav-cta{order:3;margin-left:auto;}
  .nav-menu{
    order:4;flex:1 0 100%;flex-direction:column;gap:0;margin:8px 0 0;
    border-top:1px solid rgba(237,238,247,.12);
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu li{border-bottom:1px solid rgba(237,238,247,.1);}
  .nav-menu li:last-child{border-bottom:0;}
  .nav-link{display:flex;align-items:center;height:48px;padding:0 6px;border-radius:0;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:transparent;color:var(--accent);}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding-top:48px;padding-bottom:48px;}
  .hero-media img{aspect-ratio:16/9;}
  .proj-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .tips{grid-template-columns:1fr;gap:30px;}
  .tips-media img{aspect-ratio:16/9;}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:60px 0;}
}
@media (max-width:767px){
  .proj-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .band{padding:44px 0;}
  .cta-band{padding:60px 0;}
  .acc-btn{font-size:16px;padding:18px 4px;}
  .section-head{margin-bottom:26px;}
}
@media (max-width:559px){
  .container{padding:0 18px;}
  .site-header{padding:12px 12px 0;}
  .brand-text{font-size:14px;}
  .nav-cta{height:36px;padding:0 14px;font-size:13px;}
  .page-hero{border-radius:20px;}
  .page-hero-inner{padding-top:38px;padding-bottom:38px;}
  .hero-actions .btn{width:100%;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .stat{padding:14px;}
  .stat-num{font-size:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .to-top{right:16px;bottom:16px;}
}

/* roulang page: category4 */
:root{
  --bg-deep:#0C0A20;
  --bg-deep-2:#151240;
  --bg-light:#F5F6FB;
  --surface:#FFFFFF;
  --primary:#6C4BFF;
  --primary-2:#8F76FF;
  --accent:#16E0A8;
  --signal:#FF7A2F;
  --ink:#12132B;
  --ink-2:#5A5D78;
  --ink-3:#8A8DA8;
  --line:#E4E5F0;
  --line-deep:#262350;
  --on-deep:#EDEEF7;
  --on-deep-2:#A7A9C4;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(12,10,32,.08);
  --shadow-card-hover:0 18px 40px rgba(12,10,32,.14);
  --shadow-deep:0 18px 44px rgba(0,0,0,.45);
  --shell:1240px;
  --gap:24px;
  --sect:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0}
.nav-shell{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.nav{
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(12,10,32,.72);
  border:1px solid rgba(167,169,196,.22);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 10px 30px rgba(12,10,32,.28);
  transition:box-shadow .25s ease,transform .25s ease,background .25s ease;
}
.site-header.is-scrolled .nav{box-shadow:0 16px 40px rgba(12,10,32,.45);background:rgba(12,10,32,.88)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--on-deep);font-weight:700;letter-spacing:-.2px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:17px;font-weight:800;flex:0 0 auto;
}
.brand-text{font-size:16px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:block;padding:9px 14px;border-radius:var(--radius-pill);
  color:var(--on-deep-2);font-size:15px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--on-deep);background:rgba(143,118,255,.18)}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.32);box-shadow:inset 0 -2px 0 var(--accent)}
.nav-cta{flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:14px;margin-left:auto;border:1px solid rgba(167,169,196,.28);flex-direction:column;justify-content:center;align-items:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--on-deep);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.32)}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 16px 30px rgba(108,75,255,.4)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{border:1px solid rgba(143,118,255,.6);color:var(--primary-2)}
.btn-ghost:hover{background:rgba(143,118,255,.14);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--bg-deep)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.3)}
.btn-solid-accent{background:var(--accent);color:#062b23}
.btn-solid-accent:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-lg{height:54px;padding:0 34px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:26px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--line);font-size:12px}
.crumb .now{color:var(--ink)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;margin-top:22px;overflow:hidden;
  background:var(--bg-deep);color:var(--on-deep);
  border-radius:26px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 22%,rgba(143,118,255,.28),transparent 42%),
    radial-gradient(circle at 82% 78%,rgba(22,224,168,.18),transparent 46%);
  opacity:.9;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:-14%;bottom:-58%;width:128%;height:260px;
  border-top:1px solid rgba(22,224,168,.34);border-radius:50%;pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:56px 48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(22,224,168,.42);color:var(--accent);
  font-size:13px;letter-spacing:.4px;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.2;font-weight:800;letter-spacing:-.5px;
  margin-bottom:18px;
}
.page-hero .lede{color:var(--on-deep-2);font-size:16px;line-height:1.8;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-media{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line-deep);
  box-shadow:var(--shadow-deep);aspect-ratio:4/3;background:linear-gradient(140deg,#1d1956,#0d0b26);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(167,169,196,.2)}
.hero-facts div{min-width:110px}
.hero-facts b{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.5px}
.hero-facts span{font-size:13px;color:var(--on-deep-2)}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sect) 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.5px;line-height:1.3}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.section-head .bar{display:block;width:52px;height:4px;border-radius:2px;background:var(--primary);margin-bottom:18px}
.on-deep{background:var(--bg-deep);color:var(--on-deep)}
.on-deep .section-head h2{color:#fff}
.on-deep .section-head p{color:var(--on-deep-2)}

/* ---------- 对比表 ---------- */
.compare-wrap{
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow-card);
}
.table-scroll{overflow-x:auto}
table.compare{min-width:720px;font-size:15px}
table.compare thead th{
  background:var(--bg-deep-2);color:#fff;font-weight:600;
  text-align:left;padding:18px 22px;font-size:14.5px;letter-spacing:.3px;
}
table.compare thead th:first-child{width:26%}
table.compare thead th .tag{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:var(--radius-pill);
  font-size:11.5px;font-weight:600;letter-spacing:.2px;vertical-align:middle;
}
.tag-view{background:rgba(167,169,196,.22);color:#D7D8E8}
.tag-join{background:rgba(22,224,168,.18);color:var(--accent)}
table.compare tbody th{
  text-align:left;font-weight:600;color:var(--ink);
  padding:16px 22px;background:#FBFBFE;border-top:1px solid var(--line);
}
table.compare tbody td{padding:16px 22px;color:var(--ink-2);border-top:1px solid var(--line)}
table.compare tbody tr:nth-child(even) td,table.compare tbody tr:nth-child(even) th{background:#F7F8FC}
table.compare tbody tr:nth-child(even) th{background:#F4F5FB}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:rgba(108,75,255,.055)}
table.compare td.strong{color:var(--ink);font-weight:600}
.table-note{margin-top:16px;font-size:13.5px;color:var(--ink-3)}

/* ---------- 选择建议双卡 ---------- */
.pick-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);margin-top:34px}
.pick-card{
  position:relative;padding:28px 26px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(108,75,255,.4)}
.pick-card h3{font-size:19px;font-weight:600;margin-bottom:12px}
.pick-card p{color:var(--ink-2);font-size:15px}
.pick-card ul{margin-top:16px;display:grid;gap:10px}
.pick-card li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2)}
.pick-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.pick-card .badge{
  position:absolute;top:22px;right:22px;padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;background:rgba(22,224,168,.16);color:#0c8f6d;
}
.pick-card.accent-side .badge{background:rgba(108,75,255,.14);color:var(--primary)}

/* ---------- FAQ ---------- */
.faq-section{background:var(--bg-light)}
.faq-list{max-width:820px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F7F8FC}
.faq-q{flex:1;font-size:16.5px;font-weight:600;color:var(--ink);letter-spacing:-.1px}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 auto;border-radius:50%;background:rgba(108,75,255,.12)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:transform .22s ease,opacity .22s ease}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item[open] summary{background:#F7F8FC}
.faq-a{padding:0 24px 22px 24px;color:var(--ink-2);font-size:15px;line-height:1.85}
.faq-a p{max-width:680px}
.faq-cta{margin-top:22px;font-size:14.5px;color:var(--ink-3)}
.faq-cta a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--bg-deep-2);color:var(--on-deep);border-radius:26px;padding:60px 48px;text-align:center}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-160px;width:900px;height:900px;margin-left:-450px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.34),transparent 62%);
}
.cta-band::after{
  content:"";position:absolute;left:-10%;right:-10%;bottom:-120px;height:240px;
  border-top:1px solid rgba(22,224,168,.3);border-radius:50%;
}
.cta-inner{position:relative;z-index:1}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
.cta-band p{color:var(--on-deep-2);font-size:15.5px;max-width:600px;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:18px;font-size:13px;color:var(--on-deep-2);opacity:.8}

/* ---------- 分类互链 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.cross-card{
  display:block;border-radius:var(--radius-card);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(108,75,255,.4)}
.cross-card .thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#241f63,#0d0b26)}
.cross-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.cross-card:hover .thumb img{transform:scale(1.04)}
.cross-body{padding:20px 22px 24px}
.cross-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.cross-body p{font-size:14.5px;color:var(--ink-2)}
.cross-more{display:inline-block;margin-top:14px;font-size:14px;color:var(--primary);font-weight:600}
.cross-card:hover .cross-more{text-decoration:underline;text-underline-offset:3px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sect);background:var(--bg-deep);color:var(--on-deep);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand-block .brand{margin-bottom:16px}
.footer-about{color:var(--on-deep-2);font-size:14px;line-height:1.8;max-width:300px}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-list{display:grid;gap:10px}
.footer-list a{color:var(--on-deep-2);font-size:14px;transition:color .2s ease}
.footer-list a:hover{color:var(--accent)}
.footer-contact li{color:var(--on-deep-2);font-size:14px;line-height:1.7}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-deep);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--on-deep-2);
}
.footer-bottom .mono{color:var(--on-deep-2);opacity:.85}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;
  display:grid;place-items:center;box-shadow:0 12px 28px rgba(108,75,255,.38);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{filter:brightness(1.08)}
.to-top svg{width:20px;height:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1239px){
  .hero-inner{padding:48px 36px;gap:34px}
}
@media (max-width:991px){
  .nav{padding:10px 12px}
  .nav-toggle{display:flex}
  .nav-menu{
    position:absolute;left:20px;right:20px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:rgba(12,10,32,.97);border:1px solid var(--line-deep);
    border-radius:18px;padding:8px;box-shadow:var(--shadow-deep);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu li + li{border-top:1px solid var(--line-deep)}
  .nav-link{padding:0 16px;line-height:48px;border-radius:12px;font-size:15.5px}
  .nav-cta{display:none}
  .hero-inner{grid-template-columns:1fr;padding:40px 28px}
  .hero-media{max-width:560px;aspect-ratio:16/9}
  .pick-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  :root{--sect:64px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .nav-shell{padding:0 14px}
  .page-hero{border-radius:20px}
  .hero-inner{padding:32px 22px}
  .hero-facts{gap:20px}
  .hero-facts b{font-size:20px}
  .cta-band{padding:44px 22px;border-radius:20px}
  .cross-grid{grid-template-columns:1fr}
  .faq-item summary{padding:18px 18px;gap:12px}
  .faq-a{padding:0 18px 20px}
  .faq-q{font-size:15.5px}
}
@media (max-width:519px){
  :root{--sect:52px}
  .brand-text{font-size:14.5px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:18px;width:44px;height:44px}
  .table-scroll{padding-bottom:4px}
}