/* roulang page: index */
:root{
  --brand:#7B2FF7;
  --brand-deep:#6A1FE0;
  --mint:#16E3A5;
  --gold:#FFB020;
  --ink:#16122B;
  --ink-2:#5B5570;
  --ink-3:#8C87A0;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --line:#E6E1F5;
  --dark:#120E24;
  --dark-line:rgba(255,255,255,.08);
  --soft:#FAF9FE;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,18,43,.04);
  --sh-2:0 12px 28px rgba(22,18,43,.10);
  --sh-brand:0 6px 18px rgba(123,47,247,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::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:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-card)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:16px}
::selection{background:rgba(123,47,247,.18)}
:focus-visible{outline:3px solid rgba(123,47,247,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:rgba(123,47,247,.08);
  border-radius:6px;padding:5px 10px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint)}
h2.section-title{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(22,18,43,.06)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-brand)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(22,18,43,.1)}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(123,47,247,.4)}
.btn-outline:hover{background:rgba(123,47,247,.06);transform:translateY(-2px);border-color:var(--brand)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.32)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);border-color:rgba(255,255,255,.6)}
.btn-ghost:active{transform:translateY(0)}
.btn-mint{background:var(--mint);color:#08281D}
.btn-mint:hover{background:#10CF95;transform:translateY(-2px);box-shadow:0 6px 18px rgba(22,227,165,.3)}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(22,18,43,.08);border-color:var(--line)}
.nav{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,#7B2FF7 0%,#9D5CFF 100%);
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:800;
  box-shadow:0 4px 12px rgba(123,47,247,.28);
}
.brand-text{color:var(--ink)}
.brand-text em{font-style:normal;color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-links a:hover{background:var(--soft);color:var(--ink)}
.nav-links a.is-active{background:rgba(123,47,247,.08);color:var(--brand);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s var(--ease),opacity .18s var(--ease)}
.nav-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.is-open span:nth-child(2){opacity:0}
.nav-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:var(--dark);
  padding:76px 24px 28px;display:flex;flex-direction:column;
  transform:translateX(100%);opacity:0;pointer-events:none;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0);opacity:1;pointer-events:auto}
.drawer-close{position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:12px;color:#fff;font-size:22px;display:grid;place-items:center;border:1px solid var(--dark-line)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:12px}
.drawer-nav a{
  color:#fff;font-size:22px;font-weight:700;padding:16px 4px;
  border-bottom:1px solid var(--dark-line);letter-spacing:-.01em;
}
.drawer-nav a.is-active{color:var(--mint)}
.drawer-foot{margin-top:auto;display:grid;gap:12px}
.drawer-tip{color:rgba(255,255,255,.6);font-size:13px;text-align:center}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--dark);color:#fff;overflow:hidden;
  padding:84px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(22,227,165,.12);border:1px solid rgba(22,227,165,.4);
  color:var(--mint);font-size:13px;font-weight:600;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:block}
.hero h1{
  margin-top:22px;font-size:48px;line-height:1.16;font-weight:800;letter-spacing:-.02em;
}
.hero h1 span{color:#C9A9FF}
.hero-lead{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:44px;padding-top:28px;border-top:1px solid var(--dark-line)}
.hero-stat-num{font-size:26px;font-weight:800;color:#fff;line-height:1.2}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px}
.hero-visual{position:relative}
.hero-slab{
  position:absolute;left:-6%;top:8%;width:112%;height:88%;
  background:linear-gradient(135deg,rgba(123,47,247,.55) 0%,rgba(22,227,165,.18) 100%);
  transform:skewY(-4deg);border-radius:28px;filter:blur(2px);
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none}
.hero-glow-1{width:240px;height:240px;background:rgba(123,47,247,.55);right:-8%;top:-6%}
.hero-glow-2{width:180px;height:180px;background:rgba(22,227,165,.34);left:-6%;bottom:-8%}
.hero-visual img{
  position:relative;width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.14);
  box-shadow:0 26px 60px rgba(0,0,0,.45);
}
.hero-chips{position:relative;display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-chips span{
  font-size:13px;padding:6px 12px;border-radius:6px;
  background:rgba(255,255,255,.07);border:1px solid var(--dark-line);color:rgba(255,255,255,.78);
}

/* ---------- 玩法轨道 ---------- */
.track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.track-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.track-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,47,247,.4)}
.track-item:nth-child(2){margin-top:44px}
.track-item:nth-child(3){margin-top:88px}
.track-num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.4px rgba(123,47,247,.45);
}
.track-item h3{font-size:21px;font-weight:600;margin-top:16px}
.track-item p{margin-top:12px;color:var(--ink-2);font-size:15.5px;line-height:1.8}
.track-tag{
  display:inline-block;margin-top:18px;font-size:13px;font-weight:600;
  color:var(--brand);background:rgba(123,47,247,.08);border-radius:6px;padding:4px 10px;
}

/* ---------- 奖励带 ---------- */
.reward-band{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 24px;margin:0 -4px;
  scrollbar-width:thin;
}
.reward-band::-webkit-scrollbar{height:8px}
.reward-band::-webkit-scrollbar-track{background:#EDE9F8;border-radius:999px}
.reward-band::-webkit-scrollbar-thumb{background:rgba(123,47,247,.4);border-radius:999px}
.reward-card{
  flex:0 0 calc((100% - 60px)/3.5);scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,47,247,.4)}
.reward-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;border-bottom:1px solid var(--line)}
.reward-body{padding:20px}
.reward-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.reward-body h3{font-size:18px;font-weight:600}
.badge{font-size:12px;font-weight:700;padding:3px 9px;border-radius:6px;white-space:nowrap}
.badge-common{background:rgba(154,160,180,.16);color:#6E7488}
.badge-rare{background:rgba(22,227,165,.16);color:#0E9C72}
.badge-epic{background:rgba(123,47,247,.12);color:var(--brand)}
.reward-body p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.scroll-hint{display:none;margin-top:8px;font-size:13px;color:var(--ink-3);text-align:center}

/* ---------- 进度 ---------- */
.progress-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 40px;box-shadow:var(--sh-1);
}
.progress-rail{position:relative;height:8px;border-radius:var(--r-pill);background:#EDE9F8;margin:0 12.5%;overflow:hidden}
.progress-fill{height:100%;width:66.7%;border-radius:var(--r-pill);background:linear-gradient(135deg,#7B2FF7 0%,#16E3A5 100%)}
.milestones{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-15px}
.ms{display:flex;flex-direction:column;align-items:center;text-align:center}
.ms-dot{
  width:22px;height:22px;border-radius:50%;background:#fff;
  border:3px solid #D8D2EC;display:grid;place-items:center;
  font-size:11px;font-weight:800;color:transparent;
}
.ms.is-done .ms-dot{border-color:var(--brand);background:var(--brand);color:#fff}
.ms.is-doing .ms-dot{border-color:var(--gold);background:#fff;color:var(--gold);box-shadow:0 0 0 5px rgba(255,176,32,.18)}
.ms-name{margin-top:12px;font-size:15px;font-weight:600}
.ms-state{margin-top:4px;font-size:13px;color:var(--ink-3)}
.ms.is-done .ms-state{color:#0E9C72}
.ms.is-doing .ms-state{color:#C07A00;font-weight:600}
.progress-note{
  margin-top:36px;padding:20px 24px;background:var(--soft);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  color:var(--ink-2);font-size:15px;
}
.progress-note strong{color:var(--ink)}

/* ---------- 数据看板 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.metric-num{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--brand)}
.metric-num.mint{color:#0E9C72}
.metric-num.gold{color:#C07A00}
.metric-label{margin-top:8px;font-size:15px;font-weight:600}
.metric-desc{margin-top:6px;font-size:13.5px;color:var(--ink-3);line-height:1.6}

/* ---------- 频道入口 ---------- */
.channels{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel{
  position:relative;display:block;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(123,47,247,.4)}
.channel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.channel-body{padding:24px}
.channel-body h3{font-size:20px;font-weight:600}
.channel-body p{margin-top:10px;color:var(--ink-2);font-size:15px}
.channel-more{margin-top:18px;display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.channel:hover .channel-more span{transform:translateX(4px)}
.channel-more span{transition:transform .2s var(--ease)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--dark);border-radius:var(--r-lg);color:#fff;
  padding:64px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.55) 0%,transparent 68%);
}
.cta-band > div{position:relative;max-width:640px}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.32}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:16px}
.cta-band .btn{position:relative;flex-shrink:0}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);min-height:200px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(123,47,247,.4)}
.news-card h3{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  margin-top:12px;color:var(--ink-2);font-size:14.5px;line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:10px;
  border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
}
.chip{font-size:12.5px;font-weight:600;color:var(--brand);background:rgba(123,47,247,.08);border-radius:6px;padding:3px 9px}
.news-foot .arrow{margin-left:auto;color:var(--brand);font-weight:700;transition:transform .2s var(--ease)}
.news-card:hover .news-foot .arrow{transform:translateX(4px)}
.news-empty{
  grid-column:1/-1;background:var(--card);border:1px dashed var(--line);
  border-radius:var(--r-lg);padding:56px 24px;text-align:center;
}
.news-empty-icon{
  display:grid;place-items:center;width:52px;height:52px;margin:0 auto 16px;
  border-radius:16px;background:rgba(123,47,247,.08);color:var(--brand);font-size:22px;
}
.news-empty p{color:var(--ink-2);margin-bottom:20px}
.news-more{margin-top:36px;text-align:center}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item.is-open{border-color:rgba(123,47,247,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 24px;font-size:17px;font-weight:600;line-height:1.55;position:relative;
}
.faq-q::before{
  content:"";width:3px;height:20px;border-radius:2px;background:#D8D2EC;flex-shrink:0;
  transition:background-color .2s var(--ease);
}
.faq-item.is-open .faq-q::before{background:var(--brand)}
.faq-icon{
  margin-left:auto;flex-shrink:0;width:24px;height:24px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;overflow:hidden;background:var(--soft);
  transition:max-height .32s var(--ease);
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:20px 24px;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:76px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text em{color:#C9A9FF}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.8;max-width:320px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14.5px;transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--mint)}
.footer-contact{display:grid;gap:12px;font-size:14.5px}
.footer-contact span{color:rgba(255,255,255,.86)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--dark-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:76px 0}
  .nav-links,.nav-right .btn{display:none}
  .nav-burger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:38px}
  .track{grid-template-columns:1fr;gap:18px}
  .track-item:nth-child(2),.track-item:nth-child(3){margin-top:0}
  .reward-card{flex:0 0 calc((100% - 40px)/2.4)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:48px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  h2.section-title{font-size:26px}
  .hero{padding:60px 0 68px}
  .hero h1{font-size:31px;line-height:1.25}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:24px}
  .reward-card{flex:0 0 82%}
  .scroll-hint{display:block}
  .progress-panel{padding:32px 22px}
  .milestones{grid-template-columns:repeat(2,1fr);gap:28px 16px;margin-top:28px}
  .progress-rail{margin:0}
  .channels{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .cta-band{padding:36px 24px}
  .cta-band h2{font-size:24px}
  .cta-band .btn{width:100%}
  .faq-q{font-size:16px;padding:20px 18px}
  .faq-a p{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .hero h1{font-size:27px}
  .brand-text{font-size:17px}
  .metric-num{font-size:26px}
}

/* roulang page: article */
:root{
  --primary:#7B2FF7;
  --primary-dark:#6a20e0;
  --primary-soft:rgba(123,47,247,.08);
  --accent:#16E3A5;
  --gold:#FFB020;
  --dark:#120E24;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --line:#E6E1F5;
  --line-dark:rgba(255,255,255,.08);
  --text:#16122B;
  --text-2:#5B5570;
  --text-3:#8C87A0;
  --rare-common:#9AA0B4;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(22,18,43,.04);
  --sh-2:0 12px 28px rgba(22,18,43,.10);
  --sh-primary:0 6px 18px rgba(123,47,247,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-lg);}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
::selection{background:rgba(123,47,247,.18);}
:focus-visible{outline:3px solid rgba(123,47,247,.35);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(22,18,43,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.3px;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#7B2FF7,#16E3A5 130%);
  color:#fff;font-size:17px;font-weight:800;
  box-shadow:0 6px 16px rgba(123,47,247,.28);
}
.brand-text em{font-style:normal;color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-pill);font-size:15px;color:var(--text-2);font-weight:500;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-links a:hover{background:#F1ECFD;color:var(--primary);}
.nav-links a.is-active{background:var(--primary-soft);color:var(--primary);font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;
  border-radius:var(--r-pill);font-weight:600;
  padding:0 24px;height:44px;font-size:15px;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(123,47,247,.22);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--sh-primary);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--line);}
.btn-outline:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 18px rgba(123,47,247,.16);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:20px;height:2px;background:var(--text);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--dark);
  padding:28px 24px 32px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .32s var(--ease);
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);
  background:transparent;color:#fff;font-size:22px;cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:36px;}
.drawer-nav a{
  color:#fff;font-size:22px;font-weight:700;padding:14px 4px;
  border-bottom:1px solid var(--line-dark);
}
.drawer-nav a:hover{color:var(--accent);}
.drawer-foot{margin-top:auto;}

/* ---------- article header ---------- */
.article-hero{
  background:var(--dark);color:#fff;position:relative;overflow:hidden;
  padding:56px 0 72px;
}
.article-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.55),transparent 68%);
}
.article-hero::before{
  content:"";position:absolute;left:-140px;bottom:-180px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,227,165,.30),transparent 70%);
}
.article-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);}
.crumbs a{color:rgba(255,255,255,.72);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:#fff;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:34px;font-weight:800;line-height:1.34;margin-top:24px;max-width:900px;
  letter-spacing:.3px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;
  font-size:13.5px;color:rgba(255,255,255,.72);
}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
}
.chip-primary{background:rgba(123,47,247,.20);color:#C9A8FF;border:1px solid rgba(123,47,247,.45);}
.chip-accent{background:rgba(22,227,165,.14);color:var(--accent);border:1px solid rgba(22,227,165,.4);}
.chip-gold{background:rgba(255,176,32,.14);color:var(--gold);border:1px solid rgba(255,176,32,.4);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.35);}
.meta-num{font-variant-numeric:tabular-nums;}

/* ---------- article body ---------- */
.main-wrap{padding:56px 0 88px;}
.article-panel{
  max-width:820px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px 56px;box-shadow:var(--sh-1);
}
.article-body{font-size:16.5px;line-height:1.85;color:var(--text);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:25px;font-weight:700;margin:2em 0 .7em;padding-left:14px;
  border-left:4px solid var(--primary);line-height:1.4;
}
.article-body h3{font-size:20px;font-weight:600;margin:1.6em 0 .6em;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--primary);
  background:#FAF8FF;border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.4em auto;border:1px solid var(--line);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:#F7F4FD;font-weight:600;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(123,47,247,.35);}
.article-body a:hover{color:var(--primary-dark);}
.article-body pre{
  background:var(--dark);color:#EDE9FF;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{background:#F1ECFD;color:var(--primary-dark);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body>*:first-child{margin-top:0;}
.empty-state{
  text-align:center;padding:48px 24px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:#FAF9FE;
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:24px;font-weight:800;
}
.empty-state h3{font-size:19px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* ---------- related ---------- */
.section{padding:88px 0;}
.section-tight{padding:0 0 88px;}
.section-head{margin-bottom:36px;max-width:720px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:16px;
}
.section-head h2{font-size:30px;font-weight:700;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(123,47,247,.4);}
.info-card .thumb{aspect-ratio:16/10;overflow:hidden;border-radius:0;}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;border:0;transition:transform .4s var(--ease);}
.info-card:hover .thumb img{transform:scale(1.04);}
.info-card .body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.info-card h3{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card p{
  margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.info-card .arrow{color:var(--primary);font-weight:700;transition:transform .2s var(--ease);}
.info-card:hover .arrow{transform:translateX(4px);}
.back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px;justify-content:center;}

/* ---------- cta ---------- */
.cta-band{padding:16px 0 96px;}
.cta-inner{
  background:var(--dark);border-radius:var(--r-lg);padding:52px 64px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-100px;top:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.5),transparent 70%);
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{color:#fff;font-size:27px;font-weight:700;}
.cta-text p{color:rgba(255,255,255,.72);margin-top:10px;font-size:15.5px;max-width:560px;}
.cta-inner .btn{position:relative;z-index:2;flex:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{color:#fff;font-size:18px;}
.footer-brand .brand-text em{color:var(--accent);}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px;}
.footer-title{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
body.drawer-open{overflow:hidden;}

@media (max-width:1024px){
  .nav-links{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .article-panel{padding:40px 36px;}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .article-hero{padding:40px 0 56px;}
  .article-title{font-size:26px;}
  .article-panel{padding:30px 20px;border-radius:var(--r-card);}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .main-wrap{padding:36px 0 56px;}
  .back-links .btn{width:100%;}
  .crumbs .current{max-width:200px;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .article-title{font-size:23px;}
  .article-meta{gap:10px;font-size:13px;}
  .section-head h2{font-size:22px;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --primary:#7B2FF7;
  --primary-dark:#6620D6;
  --primary-soft:rgba(123,47,247,.08);
  --primary-ring:rgba(123,47,247,.35);
  --accent:#16E3A5;
  --gold:#FFB020;
  --ink:#16122B;
  --ink-2:#5B5570;
  --ink-3:#8C87A0;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --line:#E6E1F5;
  --dark:#120E24;
  --line-dark:rgba(255,255,255,.08);
  --white-72:rgba(255,255,255,.72);
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(22,18,43,.04);
  --shadow-2:0 12px 28px rgba(22,18,43,.10);
  --shadow-btn:0 6px 18px rgba(123,47,247,.28);
  --container:1200px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
strong{font-weight:700}
:focus-visible{outline:3px solid var(--primary-ring);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}
/* ============ 布局 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
h1{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:-.02em}
h2{font-size:30px;line-height:1.34;font-weight:700;letter-spacing:-.01em}
h3{font-size:21px;line-height:1.5;font-weight:600}
.lead{color:var(--ink-2);font-size:17px;line-height:1.85}
.muted{color:var(--ink-3);font-size:14px}
.num{font-variant-numeric:tabular-nums}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
  transition:transform var(--t),background var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px rgba(22,18,43,.04)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-btn)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border:1px solid rgba(123,47,247,.35)}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-2px);border-color:var(--primary)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.24)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);border-color:rgba(255,255,255,.4)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{box-shadow:0 4px 20px rgba(22,18,43,.07);border-color:transparent}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary) 0%,#9B5BFF 100%);
  color:#fff;font-weight:800;font-size:16px;box-shadow:0 4px 12px rgba(123,47,247,.28);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--ink-2);transition:background var(--t),color var(--t);
}
.nav-links a:hover{background:#F3F0FB;color:var(--ink)}
.nav-links a.is-active{background:var(--primary-soft);color:var(--primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;place-items:center;
  border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;margin:3px auto;transition:var(--t)}
/* 移动抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,380px);background:var(--dark);z-index:90;
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:24px 24px 28px;color:#fff;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.drawer .brand-text{color:#fff}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);color:#fff;font-size:20px;display:grid;place-items:center}
.drawer-nav{display:flex;flex-direction:column;gap:8px}
.drawer-nav a{
  font-size:22px;font-weight:700;padding:14px 4px;border-bottom:1px solid var(--line-dark);
  color:rgba(255,255,255,.86);transition:color var(--t),padding-left var(--t);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent);padding-left:8px}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-mask{position:fixed;inset:0;background:rgba(18,14,36,.5);backdrop-filter:blur(2px);z-index:80;opacity:0;pointer-events:none;transition:opacity var(--t)}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
/* ============ 分类页头 ============ */
.cat-head{
  background:var(--dark);color:#fff;position:relative;overflow:hidden;padding:64px 0 0;
}
.cat-head::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.55) 0%,rgba(123,47,247,0) 68%);
}
.cat-head::before{
  content:"";position:absolute;width:320px;height:320px;left:-120px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,227,165,.32) 0%,rgba(22,227,165,0) 70%);
}
.cat-head .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--white-72);margin-bottom:22px}
.crumb a{color:var(--white-72);transition:color var(--t)}
.crumb a:hover{color:var(--accent)}
.crumb span[aria-current]{color:#fff;font-weight:600}
.cat-head h1{color:#fff;max-width:820px}
.cat-head .lead{color:var(--white-72);max-width:680px;margin-top:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:rgba(255,255,255,.08);border:1px solid var(--line-dark);color:rgba(255,255,255,.86);
}
.cat-banner{
  position:relative;z-index:2;margin-top:44px;border-radius:var(--r-lg) var(--r-lg) 0 0;overflow:hidden;
  border:1px solid var(--line-dark);border-bottom:0;box-shadow:0 -1px 0 rgba(255,255,255,.06);
}
.cat-banner img{width:100%;aspect-ratio:16/7;object-fit:cover}
.cat-banner figcaption{
  position:absolute;left:0;bottom:0;right:0;padding:14px 20px;font-size:13px;color:rgba(255,255,255,.82);
  background:linear-gradient(180deg,rgba(18,14,36,0) 0%,rgba(18,14,36,.86) 100%);
}
/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:96px}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.split-media .chip{
  position:absolute;left:18px;top:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-badge);padding:6px 12px;font-size:13px;font-weight:700;color:var(--primary);
  box-shadow:var(--shadow-1);
}
.split-body h2{margin-bottom:14px}
.split-body p{color:var(--ink-2);font-size:16px}
.split-list{margin-top:22px;display:grid;gap:12px}
.split-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.split-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(22,227,165,.14);
}
.split.reverse .split-media{order:2}
/* ============ 步骤条 ============ */
.steps-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 40px 34px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.steps-panel::before{
  content:"";position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:34px}
.step{position:relative;padding:0 20px 0 0}
.step::after{
  content:"";position:absolute;top:19px;left:46px;right:6px;height:2px;
  background:var(--line);z-index:0;
}
.step:last-child::after{display:none}
.step-dot{
  position:relative;z-index:1;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:#fff;border:2px solid var(--line);font-weight:800;font-size:15px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.step.is-done .step-dot{background:var(--primary);border-color:var(--primary);color:#fff}
.step.is-now .step-dot{background:var(--gold);border-color:var(--gold);color:#3A2600;box-shadow:0 0 0 5px rgba(255,176,32,.18)}
.step h3{font-size:18px;margin:18px 0 8px}
.step p{font-size:14px;color:var(--ink-2);padding-right:8px}
.step-status{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:700;padding:3px 10px;border-radius:var(--r-badge);
}
.is-done .step-status{background:var(--primary-soft);color:var(--primary)}
.is-now .step-status{background:rgba(255,176,32,.16);color:#9A6600}
.step.is-todo .step-status{background:#F1EFF8;color:var(--ink-3)}
/* ============ 要点清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--shadow-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(123,47,247,.4)}
.check-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:18px;font-weight:800;
  background:var(--primary-soft);color:var(--primary);margin-bottom:16px;
}
.check-card.green .check-icon{background:rgba(22,227,165,.14);color:#0E9C72}
.check-card.gold .check-icon{background:rgba(255,176,32,.16);color:#9A6600}
.check-card h3{font-size:19px;margin-bottom:8px}
.check-card p{font-size:15px;color:var(--ink-2)}
/* ============ 数据条 ============ */
.stat-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat{
  padding:26px 26px 24px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.stat:hover{border-color:rgba(123,47,247,.35);box-shadow:var(--shadow-2)}
.stat-value{font-size:34px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--ink)}
.stat-value span{font-size:16px;font-weight:700;color:var(--primary);margin-left:4px}
.stat-label{font-size:15px;font-weight:700;margin-top:8px}
.stat-desc{font-size:14px;color:var(--ink-2);margin-top:6px}
/* ============ CTA 条 ============ */
.cta{
  background:var(--dark);color:#fff;border-radius:var(--r-lg);padding:64px 64px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;width:420px;height:420px;right:-140px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.5) 0%,rgba(123,47,247,0) 70%);
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta p{color:var(--white-72);font-size:16px}
.cta .btn{position:relative;z-index:1;flex:0 0 auto}
/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.9;margin-top:16px;max-width:320px;color:var(--white-72)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t)}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:grid;gap:12px;font-size:14px;color:rgba(255,255,255,.72)}
.footer-bottom{
  margin-top:48px;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:rgba(255,255,255,.55);
}
/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms ease,transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links,.header-actions .btn{display:none}
  .nav-toggle{display:grid}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .split + .split{margin-top:64px}
  .steps{grid-template-columns:1fr;gap:26px}
  .step{padding:0}
  .step::after{display:none}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta{flex-direction:column;align-items:flex-start;padding:48px 40px}
  .cta .btn{width:100%}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section.tight{padding:48px 0}
  h1{font-size:30px;line-height:1.32}
  h2{font-size:24px}
  h3{font-size:19px}
  .lead{font-size:16px}
  .cat-head{padding:40px 0 0}
  .cat-banner{margin-top:32px}
  .cat-banner img{aspect-ratio:16/10}
  .steps-panel{padding:28px 22px 24px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 24px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta{padding:36px 24px;border-radius:var(--r-card)}
  .cta h2{font-size:23px}
  .btn{width:100%}
  .drawer-foot .btn{width:100%}
}
@media (max-width:520px){
  h1{font-size:27px}
  .brand-text{font-size:15px}
  .cat-banner figcaption{font-size:12px;padding:12px 16px}
}

/* roulang page: category2 */
:root{
  --primary:#7B2FF7;
  --primary-hover:#6F26E0;
  --primary-soft:rgba(123,47,247,.08);
  --accent:#16E3A5;
  --gold:#FFB020;
  --ink:#120E24;
  --bg:#F6F4FB;
  --card:#FFFFFF;
  --line:#E6E1F5;
  --line-dark:rgba(255,255,255,.08);
  --text:#16122B;
  --text-2:#5B5570;
  --text-3:#8C87A0;
  --rare-1:#9AA0B4;
  --rare-2:#16E3A5;
  --rare-3:#7B2FF7;
  --danger:#FF5A5F;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-sm:12px;
  --radius-badge:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(22,18,43,.04);
  --shadow-2:0 12px 28px rgba(22,18,43,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section-y:96px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::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:1.8;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:var(--radius-sm);object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(123,47,247,.35);outline-offset:2px;border-radius:8px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease),border-color .25s var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(22,18,43,.08);border-color:transparent}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#A46BFF);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;flex:none}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 16px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;color:var(--text-2)}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft)}
.nav-links a.is-active{color:var(--primary);background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;padding:0;place-items:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;margin:3px auto;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ 抽屉 ============ */
.drawer{position:fixed;inset:0;background:var(--ink);color:#fff;z-index:120;display:none;flex-direction:column;padding:20px;transform:translateX(100%);transition:transform .3s var(--ease)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line-dark)}
.drawer-head .brand-text{color:#fff;font-weight:800;font-size:17px}
.drawer-head .brand-text em{font-style:normal;color:var(--accent)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding:26px 0;flex:1}
.drawer-nav a{font-size:22px;font-weight:700;padding:14px 16px;border-radius:14px;color:rgba(255,255,255,.86)}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-nav a.is-active{background:rgba(123,47,247,.24);color:#fff}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line-dark)}
body.no-scroll{overflow:hidden}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 26px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 6px 18px rgba(123,47,247,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(123,47,247,.20)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.62);color:#fff;transform:translateY(-2px)}

/* ============ 页头 ============ */
.page-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:78px 0 68px}
.page-hero-bg{position:absolute;inset:0;background-image:linear-gradient(135deg,rgba(18,14,36,.94),rgba(18,14,36,.60)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:1}
.page-hero::after{content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(123,47,247,.55),transparent 68%);filter:blur(4px);pointer-events:none}
.page-hero::before{content:"";position:absolute;left:-120px;bottom:-160px;width:360px;height:360px;background:radial-gradient(circle,rgba(22,227,165,.28),transparent 70%);pointer-events:none}
.page-hero-inner{position:relative;z-index:2;max-width:800px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .current{color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.page-hero h1{font-size:44px;font-weight:800;line-height:1.22;margin-bottom:18px}
.page-hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line-dark)}
.hero-facts li{display:flex;flex-direction:column;gap:2px}
.hero-facts strong{font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.hero-facts span{font-size:13px;color:rgba(255,255,255,.60)}

/* ============ 板块通用 ============ */
.section{padding:var(--section-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:30px;font-weight:700;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.section-label{display:inline-block;font-size:13px;font-weight:700;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:14px}
.section-dark{background:var(--ink);color:#fff}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.70)}
.section-white{background:#fff}

/* ============ 要点网格 ============ */
.grid-points{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);position:relative;overflow:hidden}
.point-card::after{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(135deg,var(--primary),var(--accent));opacity:0;transition:opacity .2s var(--ease)}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(123,47,247,.40)}
.point-card:hover::after{opacity:1}
.point-num{font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.point-card h3{font-size:20px;font-weight:600;margin:12px 0 10px}
.point-card p{font-size:15px;color:var(--text-2);line-height:1.75}
.point-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-badge);background:var(--bg);color:var(--text-2);border:1px solid var(--line)}
.tag-accent{background:rgba(22,227,165,.12);color:#0E9C72;border-color:rgba(22,227,165,.30)}
.tag-gold{background:rgba(255,176,32,.14);color:#A86E00;border-color:rgba(255,176,32,.34)}
.tag-brand{background:var(--primary-soft);color:var(--primary);border-color:rgba(123,47,247,.24)}

/* ============ 档位卡 ============ */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tier-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px 28px;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(123,47,247,.40)}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.tier-name{font-size:20px;font-weight:700}
.rarity{font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--radius-badge);color:#fff;letter-spacing:.04em}
.rarity-common{background:var(--rare-1)}
.rarity-rare{background:var(--rare-2);color:#08301F}
.rarity-epic{background:var(--rare-3)}
.tier-meta{font-size:13px;color:var(--text-3);margin-bottom:6px}
.tier-threshold{font-size:24px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;margin-bottom:16px}
.tier-threshold small{font-size:13px;font-weight:600;color:var(--text-3);margin-left:4px}
.tier-list{display:flex;flex-direction:column;gap:9px;margin-bottom:22px}
.tier-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2);line-height:1.7}
.tier-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:3px;background:var(--primary);opacity:.85}
.tier-card .btn{margin-top:auto}
.tier-bar{height:6px;border-radius:var(--radius-pill);background:var(--bg);overflow:hidden;margin-bottom:20px}
.tier-bar i{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(135deg,var(--primary),#A46BFF)}
.tier-card.rare .tier-bar i{background:linear-gradient(135deg,#0E9C72,var(--accent))}
.tier-card.epic .tier-bar i{background:linear-gradient(135deg,#5A18C6,var(--primary))}
.tier-note{margin-top:28px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:22px 24px;font-size:15px;color:var(--text-2)}
.tier-note strong{color:var(--text)}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:72px}
.split.reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{width:100%;height:340px;border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.split-media::after{content:"";position:absolute;left:-16px;bottom:-16px;width:120px;height:120px;border-radius:24px;background:linear-gradient(135deg,rgba(123,47,247,.20),rgba(22,227,165,.16));z-index:-1}
.split-text h2{font-size:28px;margin-bottom:16px}
.split-text p{color:var(--text-2);font-size:16px;margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);line-height:1.75}
.check-list li::before{content:"✓";flex:none;width:22px;height:22px;border-radius:50%;background:rgba(22,227,165,.16);color:#0E9C72;font-size:13px;font-weight:800;display:grid;place-items:center;margin-top:3px}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item.is-open{border-color:rgba(123,47,247,.40);box-shadow:var(--shadow-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;padding:20px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;cursor:pointer;position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;background:var(--line);transition:background-color .2s var(--ease)}
.faq-item.is-open .faq-q::before{background:var(--primary)}
.faq-q span:first-child{padding-left:14px}
.faq-icon{position:relative;flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);transition:transform .3s var(--ease),border-color .2s var(--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:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(123,47,247,.40)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);background:#FAF9FE}
.faq-a-inner{padding:18px 24px 22px 36px;font-size:15px;color:var(--text-2);line-height:1.85;border-top:1px solid var(--line)}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 var(--section-y)}
.cta-band{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:52px 64px;display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(123,47,247,.55),transparent 68%);pointer-events:none}
.cta-band-text{position:relative;z-index:2;max-width:640px}
.cta-band-text h2{font-size:28px;margin-bottom:12px}
.cta-band-text p{color:rgba(255,255,255,.72);font-size:16px}
.cta-band .btn{position:relative;z-index:2;flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line-dark)}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text em{font-style:normal;color:var(--accent)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(255,255,255,.68)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.50)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .page-hero h1{font-size:40px}
}
@media (max-width:1024px){
  .nav-links,.header-actions .btn{display:none}
  .nav-toggle{display:grid}
  .drawer{display:flex}
  .grid-points,.tier-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 40px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  :root{--section-y:60px}
  .site-header .header-inner{height:56px}
  .page-hero{padding:52px 0 48px}
  .page-hero h1{font-size:30px}
  .page-hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:26px;margin-top:32px}
  .hero-facts strong{font-size:22px}
  .grid-points,.tier-grid{grid-template-columns:1fr}
  .section-head h2{font-size:24px}
  .split-text h2{font-size:22px}
  .split-media img{height:230px}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a-inner{padding:16px 20px 20px 30px}
  .cta-band{padding:34px 24px;border-radius:16px}
  .cta-band-text h2{font-size:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .hero-facts{gap:20px;width:100%}
  .hero-facts li{flex:1 1 40%}
}