/* roulang page: index */
:root{
  --bg:#05080F;
  --bg-2:#0A101B;
  --card:#0E1726;
  --mint:#22E0B4;
  --violet:#5B7CFA;
  --amber:#FFC24B;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --grad:linear-gradient(135deg,#5B7CFA 0%,#22E0B4 100%);
  --glow-mint:0 8px 28px rgba(34,224,180,.22);
  --glow-violet:0 10px 40px rgba(91,124,250,.18);
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Barlow",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.site-body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
::selection{background:rgba(34,224,180,.28);color:#fff}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:var(--mint);color:#04120D;padding:10px 18px;border-radius:0 0 12px 0;font-size:14px}
.skip-link:focus{left:0}

/* 容器 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1024px){.container{padding:0 40px}}
@media (max-width:640px){.container{padding:0 20px}}

/* 排版类 */
.h1{font-size:56px;line-height:1.15;font-weight:800;letter-spacing:.01em}
.h2{font-size:36px;line-height:1.25;font-weight:700;position:relative;padding-left:16px}
.h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--mint);box-shadow:0 0 12px rgba(34,224,180,.65)}
.h3{font-size:22px;line-height:1.4;font-weight:600}
.section-sub{color:var(--text-2);font-size:15px;line-height:1.7;margin-top:12px;max-width:640px}
.num{font-family:var(--font-num);font-weight:800;letter-spacing:.02em}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:72px;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.45) 45%,rgba(91,124,250,.35) 70%,transparent);
}
.site-header.is-scrolled{background:rgba(5,8,15,.92);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;color:var(--mint);border:1px solid rgba(34,224,180,.4);border-radius:10px;background:rgba(34,224,180,.08);box-shadow:0 0 16px rgba(34,224,180,.18)}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:10px 2px;transition:color .18s ease}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 12px rgba(34,224,180,.85);
}
.nav-link.is-active{color:var(--mint);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px rgba(34,224,180,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:4px;background:rgba(255,255,255,.03)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:background .2s ease}
.nav-toggle:hover span{background:var(--mint)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.btn-primary{background:var(--mint);color:#04120D;box-shadow:var(--glow-mint)}
.btn-primary:hover{background:var(--grad);color:#04120D;box-shadow:0 12px 32px rgba(34,224,180,.35);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--mint);border:1px solid rgba(34,224,180,.55)}
.btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn-pill{border-radius:999px;padding:0 32px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--mint);font-weight:600;transition:color .18s ease}
.link-arrow span{display:inline-block;transition:transform .22s ease}
.link-arrow:hover span{transform:translateX(4px)}
.link-arrow:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}

/* 标签胶囊 */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;line-height:1;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.tag-mint{color:var(--mint);border-color:rgba(34,224,180,.35);background:rgba(34,224,180,.08)}
.tag-amber{color:var(--amber);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.08)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--mint);border:1px solid rgba(34,224,180,.45);background:rgba(34,224,180,.08);
}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px rgba(34,224,180,.9)}

/* Hero */
.hero{
  position:relative;min-height:82vh;display:flex;align-items:center;
  padding:140px 0 88px;
  background-image:linear-gradient(105deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.78) 46%,rgba(5,8,15,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-120px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,124,250,.28),transparent 70%);filter:blur(80px);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.5),transparent);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:center}
.hero-copy .h1{margin:22px 0 18px;max-width:14em}
.hero-sub{font-size:18px;color:var(--text-2);line-height:1.7;max-width:26em}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);max-width:520px}
.hero-stats > div{position:relative;padding-right:28px}
.hero-stats > div:not(:last-child)::after{content:"";position:absolute;right:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.hero-stats dt{font-family:var(--font-num);font-size:32px;font-weight:800;line-height:1;color:var(--mint)}
.hero-stats dd{margin:8px 0 0;font-size:13px;color:var(--text-3)}

/* 玻璃面板 */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.hero-panel{padding:28px;animation:floaty 12s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.panel-head{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);letter-spacing:.04em}
.panel-dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px rgba(34,224,180,.9)}
.panel-num{font-family:var(--font-num);font-size:64px;font-weight:800;line-height:1;color:var(--text);margin:14px 0 6px}
.panel-num span{font-size:26px;color:var(--text-2);margin-left:4px}
.panel-desc{font-size:13px;color:var(--text-3);margin-bottom:16px}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;position:relative}
.progress-fill{height:100%;border-radius:999px;background:var(--grad);position:relative;transition:width .6s cubic-bezier(.4,0,.2,1)}
.progress-fill::after{content:"";position:absolute;right:0;top:50%;transform:translate(50%,-50%);width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 0 12px rgba(255,255,255,.9)}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 0 22px;font-size:14px;color:var(--text-2)}
.panel-row strong{font-family:var(--font-num);font-size:17px;color:var(--amber);letter-spacing:.03em}

/* 通用板块 */
.section{padding:96px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}

/* 玩法卡 */
.play-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.play-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),border-color .22s ease;
}
.play-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.4)}
.play-card-lg{grid-column:span 2;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:stretch}
.play-card-wide{grid-column:span 2}
.play-card img{width:100%;height:100%;object-fit:cover;min-height:200px}
.play-card-lg img{min-height:100%}
.play-body{padding:26px;position:relative}
.play-num{
  font-family:var(--font-num);font-size:44px;font-weight:800;line-height:1;
  color:rgba(34,224,180,.22);display:block;margin-bottom:10px;
}
.play-body .h3{margin-bottom:10px}
.play-body p{font-size:15px;color:var(--text-2);line-height:1.75;margin-bottom:18px}

/* 奖励 bento */
.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(148px,auto);gap:20px}
.bento-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-direction:column;justify-content:space-between;gap:14px;
  box-shadow:var(--shadow-card);
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),border-color .22s ease;
}
.bento-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.4)}
.bento-main{
  grid-column:span 2;grid-row:span 2;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-color:rgba(34,224,180,.28);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(34,224,180,.08) inset;
}
.bento-main::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);pointer-events:none;
  background:radial-gradient(420px 220px at 100% 0%,rgba(34,224,180,.14),transparent 70%);
}
.bento-a,.bento-b{grid-column:span 2}
.bento-title{font-size:16px;font-weight:600;color:var(--text)}
.bento-desc{font-size:13px;color:var(--text-3);line-height:1.6}
.bento-value{font-family:var(--font-num);font-size:44px;font-weight:800;line-height:1;color:var(--amber)}
.bento-main .bento-value{font-size:72px}
.bento-value small{font-size:16px;color:var(--text-2);margin-left:6px;font-family:var(--font-cn);font-weight:600}
.bento-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* 任务进度 */
.task-layout{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:56px;align-items:start}
.task-intro{position:sticky;top:104px}
.check-list{margin:26px 0 30px;display:flex;flex-direction:column;gap:14px}
.check-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 10px rgba(34,224,180,.7);
}
.task-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.task-item{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:18px;padding:24px 26px}
.task-item + .task-item{border-top:1px solid var(--line)}
.task-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(34,224,180,.08);border:1px solid rgba(34,224,180,.25);color:var(--mint);flex-shrink:0;
}
.task-name{font-size:16px;font-weight:600;margin-bottom:10px}
.task-item .progress{height:6px}
.task-status{font-size:13px;white-space:nowrap}

/* CTA 通栏 */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:40px 44px;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(34,224,180,.24);
  box-shadow:var(--shadow-card),0 0 40px rgba(34,224,180,.12);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(135deg,rgba(91,124,250,.10),rgba(34,224,180,.08));
}
.cta-title{position:relative;font-size:28px;line-height:1.35;font-weight:700;z-index:1}
.cta-inner .btn{position:relative;z-index:1}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.4)}
.news-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:40%;
  background:linear-gradient(to top,rgba(5,8,15,.85),transparent);
}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:18px;line-height:1.45;font-weight:600}
.news-title a{transition:color .18s ease}
.news-title a:hover{color:var(--mint)}
.news-desc{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);padding-top:8px;border-top:1px solid var(--line)}
.news-feature{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-card);margin-bottom:24px;
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s cubic-bezier(.4,0,.2,1),border-color .22s ease;
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.4)}
.news-feature .news-cover{aspect-ratio:21/9;height:100%}
.news-feature .news-cover::after{background:linear-gradient(to right,transparent,rgba(14,23,38,.9))}
.news-feature .news-body{padding:34px;justify-content:center}
.news-feature .news-title{font-size:24px;line-height:1.4}
.empty-state{
  min-height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:32px 20px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background:rgba(255,255,255,.02);text-align:center;
}
.empty-state svg{opacity:.4;color:var(--mint)}
.empty-state p{font-size:14px;color:var(--text-3)}

/* 信任区 */
.trust-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.trust-layout p{color:var(--text-2);font-size:16px;line-height:1.85;margin-top:18px;max-width:38em}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.stat-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;overflow:hidden;box-shadow:var(--shadow-card);
}
.stat-card::before{content:"";position:absolute;left:24px;right:24px;top:0;height:2px;border-radius:2px;background:var(--grad)}
.stat-num{font-family:var(--font-num);font-size:56px;font-weight:800;line-height:1;color:var(--mint)}
.stat-num small{font-size:16px;color:var(--text-2);margin-left:6px;font-family:var(--font-cn);font-weight:600}
.stat-label{margin-top:10px;font-size:14px;color:var(--text-3)}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;background:var(--card);overflow:hidden;transition:border-color .2s ease}
.faq-item:hover{border-color:rgba(34,224,180,.3)}
.faq-item.is-open{border-color:rgba(34,224,180,.45);box-shadow:0 0 0 1px rgba(34,224,180,.12)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--text);
  min-height:44px;
}
.faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-2px}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;transition:transform .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--mint);border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .2s ease,opacity .2s 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;transition:max-height .3s cubic-bezier(.4,0,.2,1)}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px;margin-top:-1px}

/* 页脚 */
.site-footer{position:relative;background:var(--bg);border-top:1px solid var(--line);padding:72px 0 0}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:1px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.8;max-width:26em}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-3);transition:color .18s ease}
.footer-links a:hover{color:var(--mint)}
.footer-links a:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:4px}
.footer-note{font-size:14px;color:var(--text-3);line-height:1.85}
.footer-note strong{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-2);font-size:13px;transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.to-top:hover{border-color:rgba(34,224,180,.45);color:var(--mint);background:rgba(34,224,180,.08)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:rgba(5,8,15,.98);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{width:44px;height:44px;font-size:28px;line-height:1;color:var(--text-2);border:1px solid var(--line);border-radius:12px}
.drawer-close:hover{color:var(--mint)}
.drawer-nav{display:flex;flex-direction:column;margin-top:28px;flex:1}
.drawer-nav a{
  display:flex;align-items:center;gap:16px;height:56px;font-size:20px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color .2s ease;
}
.drawer-nav a span{font-family:var(--font-num);font-size:14px;color:var(--mint);opacity:.7}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--mint)}
.drawer-cta{width:100%;margin-top:24px;flex-shrink:0}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease,transform .4s ease}
.reveal.is-in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1024px){
  .h1{font-size:40px}
  .h2{font-size:28px}
  .section{padding:64px 0}
  .hero{padding:120px 0 64px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy .h1{max-width:none}
  .play-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .play-card-lg{grid-column:span 2;grid-template-columns:1fr}
  .play-card-wide{grid-column:span 2}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-main{grid-column:span 2;grid-row:span 1}
  .bento-a,.bento-b{grid-column:span 1}
  .bento-main .bento-value{font-size:56px}
  .task-layout{grid-template-columns:1fr;gap:32px}
  .task-intro{position:static}
  .trust-layout{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-feature{grid-template-columns:1fr}
  .news-feature .news-cover{aspect-ratio:16/9}
  .news-feature .news-body{padding:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding-bottom:64px}
}
@media (max-width:768px){
  .site-header{height:60px}
  .nav-wrap{height:60px}
  .nav-menu{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .h1{font-size:36px}
  .h2{font-size:26px}
  .hero{padding:104px 0 56px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:20px}
  .hero-stats > div{padding-right:20px}
  .hero-stats dt{font-size:26px}
  .panel-num{font-size:52px}
  .cta-inner{padding:28px 24px}
  .cta-title{font-size:22px}
  .stat-num{font-size:44px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:640px){
  .h1{font-size:32px}
  .h2{font-size:24px}
  .section{padding:48px 0}
  .play-grid{grid-template-columns:1fr}
  .play-card-lg,.play-card-wide{grid-column:span 1}
  .bento{grid-template-columns:1fr}
  .bento-main,.bento-a,.bento-b{grid-column:span 1}
  .bento-main .bento-value{font-size:52px}
  .bento-value{font-size:38px}
  .stat-grid{grid-template-columns:1fr}
  .stat-num{font-size:38px}
  .task-item{grid-template-columns:auto minmax(0,1fr);padding:20px}
  .task-status{grid-column:2;justify-self:start}
  .btn{width:100%}
  .btn-sm{width:auto}
  .hero-btns .btn,.cta-inner .btn,.task-intro .btn{width:100%}
  .section-head{align-items:flex-start}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-panel{animation:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --bg:#05080F;
  --bg-soft:#0A101B;
  --card:#0E1726;
  --primary:#22E0B4;
  --secondary:#5B7CFA;
  --amber:#FFC24B;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --glow-primary:0 8px 28px rgba(34,224,180,.22);
  --glow-blue:0 10px 40px rgba(91,124,250,.18);
  --grad:linear-gradient(135deg,#5B7CFA 0%,#22E0B4 100%);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow","Barlow Condensed",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
::selection{background:rgba(34,224,180,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1024px){.container{padding:0 40px}}
@media (max-width:640px){.container{padding:0 20px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.45),rgba(91,124,250,.3),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:10px;
  border:1px solid rgba(34,224,180,.45);color:var(--primary);
  background:rgba(34,224,180,.08);box-shadow:var(--glow-primary);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(34,224,180,.8);
  transform:scaleX(0);transform-origin:left center;transition:transform .18s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active::before{
  content:"";position:absolute;top:3px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);cursor:pointer;transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:rgba(34,224,180,.5);background:rgba(34,224,180,.1)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s,background .22s,border-color .22s,color .22s;
}
.btn-primary{background:var(--primary);color:#04120D;box-shadow:var(--glow-primary)}
.btn-primary:hover{background-image:var(--grad);transform:translateY(-1px);box-shadow:0 12px 32px rgba(34,224,180,.34)}
.btn-ghost{background:transparent;border-color:rgba(34,224,180,.5);color:var(--primary)}
.btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:15px;font-weight:600;background:none;border:0;padding:0;cursor:pointer;
  transition:color .18s;
}
.btn-text .arrow{transition:transform .18s ease}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn:focus-visible,.btn-text:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;
}

/* ============ 移动抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;
  padding:22px 22px 28px;background:rgba(5,8,15,.98);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transform:translateY(-102%);opacity:0;pointer-events:none;
  transition:transform .28s cubic-bezier(.4,0,.2,1),opacity .28s;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  font-size:22px;line-height:1;cursor:pointer;
}
.drawer-links{display:flex;flex-direction:column;padding-top:16px;flex:1}
.drawer-links a{
  display:flex;align-items:center;gap:14px;min-height:56px;font-size:20px;font-weight:600;
  color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);
}
.drawer-links a .idx{font-family:var(--font-num);font-size:14px;color:var(--primary);width:24px}
.drawer-links a.is-active{color:var(--primary)}
.drawer-foot{padding-top:20px}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:24px 0 16px;font-size:14px;color:var(--text-2);
}
.crumbs a{color:var(--text-2);transition:color .18s}
.crumbs a:hover{color:var(--text)}
.crumbs .sep{color:var(--text-3)}
.crumbs .current{color:var(--primary);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-hero{position:relative;padding:8px 0 40px}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(5,8,15,.72),rgba(5,8,15,.96)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.5;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 92%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 92%);
}
.hero-inner{position:relative;z-index:1;max-width:860px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;line-height:1;color:var(--text-2);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line-strong);
}
.tag-accent{color:var(--primary);border-color:rgba(34,224,180,.38);background:rgba(34,224,180,.08)}
.tag-amber{color:var(--amber);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.08)}
.article-title{
  font-size:40px;line-height:1.2;font-weight:800;letter-spacing:.01em;
  color:var(--text);margin:0 0 20px;
  overflow-wrap:break-word;word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:14px;color:var(--text-3);padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}
.article-meta strong{color:var(--text-2);font-weight:500}

/* ============ 封面 ============ */
.article-cover{
  position:relative;margin:34px 0 0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:21/9;background:var(--card);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0) 45%,rgba(5,8,15,.85) 100%);
  pointer-events:none;
}
.cover-caption{
  position:absolute;left:20px;bottom:16px;z-index:2;
  font-size:13px;color:var(--text-2);letter-spacing:.01em;
}

/* ============ 正文 ============ */
.article-main{padding:48px 0 8px}
.article-layout{max-width:820px;margin:0 auto}
.back-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.article-body{
  max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--text-2);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em;line-height:1.9;color:var(--text-2)}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:26px;line-height:1.35;font-weight:700;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:999px;
  background:var(--primary);box-shadow:0 0 14px rgba(34,224,180,.5);
}
.article-body h3{margin:32px 0 12px;font-size:19px;line-height:1.5;font-weight:600;color:var(--text)}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--text)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(34,224,180,.35);transition:border-color .2s}
.article-body a:hover{border-color:var(--primary)}
.article-body strong{color:var(--text);font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;margin-bottom:.55em;padding-left:22px;line-height:1.85;color:var(--text-2);
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(34,224,180,.45);
}
.article-body ol{counter-reset:item}
.article-body ol li{padding-left:28px}
.article-body ol li::before{
  counter-increment:item;content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--font-num);font-size:14px;
  color:var(--primary);font-weight:700;letter-spacing:.04em;
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--primary);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  background:rgba(34,224,180,.08);color:var(--text);
  font-size:15px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;color:var(--text)}
.article-body img{border-radius:var(--radius-md);margin:24px 0 10px;border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:13px;color:var(--text-3);line-height:1.7}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  background:var(--card);border-radius:var(--radius-md);overflow:hidden;
}
.article-body thead th{
  text-align:left;padding:14px 16px;font-weight:600;color:var(--text);
  border-bottom:1px solid rgba(34,224,180,.45);background:rgba(255,255,255,.03);
}
.article-body tbody td{padding:13px 16px;color:var(--text-2);border:0}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body pre{
  margin:24px 0;padding:18px;border-radius:var(--radius-md);overflow-x:auto;
  background:#070C15;border:1px solid var(--line);font-size:14px;line-height:1.7;color:var(--text-2);
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:var(--primary)}
.article-body hr{margin:36px 0;border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,224,180,.4),transparent)}

/* ============ 空态 ============ */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;padding:36px 20px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);background:rgba(255,255,255,.02);
}
.empty-state .empty-icon{color:rgba(34,224,180,.4)}
.empty-state p{font-size:14px;color:var(--text-3);margin:0}
.empty-state .btn{margin-top:6px}

/* ============ 标签组 ============ */
.tag-block{
  max-width:760px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.tag-block .label{font-size:14px;color:var(--text-3);margin-right:4px}
.tag-chip{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  font-size:13px;color:var(--text-2);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);transition:color .2s,border-color .2s,background .2s;
}
.tag-chip:hover{color:var(--primary);border-color:rgba(34,224,180,.45);background:rgba(34,224,180,.08)}

/* ============ 相关推荐 ============ */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-title{
  position:relative;padding-left:16px;font-size:30px;line-height:1.3;font-weight:700;color:var(--text);
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:999px;
  background:var(--primary);box-shadow:0 0 14px rgba(34,224,180,.5);
}
.section-sub{margin-top:10px;padding-left:16px;font-size:14px;color:var(--text-3);max-width:520px}
.related-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:stretch}
.related-side{display:grid;gap:24px;align-content:start}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s,border-color .22s;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover),0 0 0 1px rgba(34,224,180,.35)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A101B}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:42%;
  background:linear-gradient(180deg,rgba(5,8,15,0),rgba(5,8,15,.85));pointer-events:none;
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-kicker{font-size:13px;color:var(--primary);letter-spacing:.02em}
.card-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--text);margin:0}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-3);margin:0}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-lg .card-media{aspect-ratio:16/10}
.card-lg .card-title{font-size:20px}
.card-sm{flex-direction:row}
.card-sm .card-media{width:140px;flex-shrink:0;aspect-ratio:4/3}
.card-sm .card-media::after{display:none}
.card-sm .card-body{padding:18px}
.card-sm .card-title{font-size:16px}

/* ============ CTA 通栏 ============ */
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 40px;border-radius:var(--radius-lg);
  border:1px solid rgba(34,224,180,.28);
  background:linear-gradient(135deg,rgba(91,124,250,.1),rgba(34,224,180,.08));
  box-shadow:var(--glow-blue);
}
.cta-banner::before{
  content:"";position:absolute;right:-90px;bottom:-110px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,180,.22),transparent 68%);filter:blur(40px);pointer-events:none;
}
.cta-banner h2{position:relative;z-index:1;font-size:26px;line-height:1.4;font-weight:700;color:var(--text);margin:0 0 8px}
.cta-banner p{position:relative;z-index:1;margin:0;font-size:14px;color:var(--text-3);max-width:520px}
.cta-banner .btn{position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:64px;padding:64px 0 28px;
  background:var(--bg);border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.6),rgba(91,124,250,.45),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px;margin:0}
.footer-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s}
.footer-links a:hover{color:var(--primary)}
.footer-note{font-size:14px;line-height:1.85;color:var(--text-3);margin:0}
.footer-note strong{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{color:var(--text-2);transition:color .18s}
.to-top:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .article-title{font-size:32px}
  .section-title{font-size:26px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .site-header .header-inner{height:60px;gap:14px}
  .header-actions .btn-sm{display:none}
  .article-hero{padding:4px 0 28px}
  .article-title{font-size:28px}
  .section{padding:48px 0}
  .article-main{padding:36px 0 0}
  .article-body h2{font-size:22px;margin:36px 0 14px}
  .article-body h3{font-size:18px;margin:26px 0 10px}
  .cta-banner{padding:26px 22px}
  .cta-banner h2{font-size:21px}
  .cta-banner .btn{width:100%}
  .card-sm{flex-direction:column}
  .card-sm .card-media{width:100%;aspect-ratio:16/9}
  .article-cover{aspect-ratio:16/9}
}
@media (max-width:520px){
  .article-title{font-size:24px}
  .section-title{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .crumbs .current{max-width:100%}
  .tag-block{gap:8px}
  .article-body table{font-size:13px}
  .article-body thead th,.article-body tbody td{padding:10px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#05080F;
  --bg-soft:#0A101B;
  --card:#0E1726;
  --mint:#22E0B4;
  --violet:#5B7CFA;
  --amber:#FFC24B;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.05);
  --grad:linear-gradient(135deg,#5B7CFA 0%,#22E0B4 100%);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --mint-glow:0 8px 28px rgba(34,224,180,.22);
  --violet-glow:0 10px 40px rgba(91,124,250,.18);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Barlow","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.5;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol,li{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.25;font-weight:700}
main{position:relative;z-index:1}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
@media(max-width:1024px){.section{padding:64px 0}}
@media(max-width:640px){.section{padding:48px 0}.wrap{padding-left:20px;padding-right:20px}}
.num{font-family:var(--font-num);font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.55) 40%,rgba(34,224,180,.55) 60%,transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;
  color:var(--mint);border:1px solid rgba(34,224,180,.45);
  background:radial-gradient(circle at 30% 20%,rgba(34,224,180,.22),rgba(34,224,180,0));
  box-shadow:0 0 18px rgba(34,224,180,.18);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:1px;
  background:rgba(234,242,255,.4);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--mint)}
.nav-link.is-active::before{
  content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 10px var(--mint);
}
.nav-link.is-active::after{
  transform:scaleX(1);height:2px;bottom:6px;background:var(--mint);
  box-shadow:0 0 12px rgba(34,224,180,.9);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);color:var(--text);
  transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:rgba(34,224,180,.4);color:var(--mint)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s,background .22s,border-color .22s,color .22s;
}
.btn-primary{background:var(--mint);color:#04120D;box-shadow:0 8px 24px rgba(34,224,180,.18)}
.btn-primary:hover{background-image:var(--grad);transform:translateY(-1px);box-shadow:0 10px 30px rgba(34,224,180,.34)}
.btn-ghost{border:1px solid rgba(34,224,180,.45);color:var(--mint);background:transparent}
.btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px)}
.btn-soft{border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.04)}
.btn-soft:hover{border-color:rgba(34,224,180,.35);color:var(--mint)}
.btn-pill{border-radius:999px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.btn:disabled{opacity:.4;transform:none;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--mint);font-size:14px;font-weight:600}
.link-arrow i{display:inline-block;transition:transform .2s ease;font-style:normal}
.link-arrow:hover i{transform:translateX(4px)}
.link-arrow:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  display:flex;flex-direction:column;
  background:rgba(5,8,15,.98);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transform:translateY(-100%);visibility:hidden;
  transition:transform .32s cubic-bezier(.4,0,.2,1),visibility .32s;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);font-size:22px;line-height:1;color:var(--text);
}
.drawer-close:hover{border-color:rgba(34,224,180,.4);color:var(--mint)}
.drawer-nav{padding:16px 20px;display:flex;flex-direction:column;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;height:56px;font-size:20px;
  color:var(--text-2);border-bottom:1px solid var(--line-soft);
}
.drawer-nav a span{font-family:var(--font-num);font-size:14px;color:var(--mint);opacity:.85;width:22px}
.drawer-nav a.is-active{color:var(--mint)}
.drawer-cta{margin:16px 20px 30px;width:calc(100% - 40px);border-radius:999px}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding-top:24px;padding-bottom:16px;font-size:14px;color:var(--text-2);
  margin-top:72px;
}
.crumbs a{transition:color .18s}
.crumbs a:hover{color:var(--text)}
.crumbs .sep{color:var(--text-3)}
.crumbs .current{color:var(--mint)}

/* ---------- 顶部通栏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  display:flex;align-items:center;
  min-height:320px;
  padding:56px 0;
  background-image:linear-gradient(100deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.78) 45%,rgba(5,8,15,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:rgba(34,224,180,.3);
}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;border:1px solid rgba(34,224,180,.45);
  color:var(--mint);font-size:13px;background:rgba(34,224,180,.08);
}
.hero-label b{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);display:inline-block}
.page-hero h1{font-size:40px;font-weight:800;line-height:1.15;letter-spacing:.01em;margin:18px 0 14px}
.page-hero h1 em{font-style:normal;color:var(--mint)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px}
.hero-note{margin-top:14px;font-size:14px;color:var(--text-3);max-width:640px}

/* ---------- 筛选条 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-btn{
  height:38px;padding:0 18px;border-radius:999px;font-size:14px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s,border-color .2s,background .2s,box-shadow .2s;
}
.filter-btn:hover{color:var(--text);border-color:rgba(34,224,180,.35)}
.filter-btn.is-active{
  color:#04120D;background:var(--mint);border-color:transparent;
  font-weight:600;box-shadow:0 6px 18px rgba(34,224,180,.26);
}
.filter-btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}

/* ---------- 区块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.sec-title{position:relative;padding-left:16px;font-size:32px;font-weight:700;line-height:1.25}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;
  border-radius:2px;background:var(--mint);box-shadow:0 0 12px rgba(34,224,180,.7);
}
.sec-desc{margin-top:8px;font-size:15px;color:var(--text-2);padding-left:16px;max-width:640px}
@media(max-width:640px){.sec-title{font-size:24px}.sec-title::before{top:3px;height:19px}}

/* ---------- 时间轴 ---------- */
.timeline-wrap{max-width:860px;margin:0 auto}
.timeline{position:relative;padding:8px 0 0}
.timeline::before{
  content:"";position:absolute;left:11px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(34,224,180,.75),rgba(91,124,250,.4) 55%,rgba(91,124,250,0));
  border-radius:2px;
}
.tl-item{position:relative;padding-left:46px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:4px;top:26px;width:16px;height:16px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 0 4px rgba(34,224,180,.14),0 0 16px rgba(34,224,180,.6);
}
.tl-item[data-state="finished"] .tl-dot{background:transparent;border:2px solid var(--text-3);box-shadow:none}
.tl-item[data-state="upcoming"] .tl-dot{background:var(--amber);box-shadow:0 0 0 4px rgba(255,194,75,.14),0 0 14px rgba(255,194,75,.45)}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-time{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--mint);line-height:1;letter-spacing:.02em}
.tl-item[data-state="finished"] .tl-time{color:var(--text-2)}
.tl-item[data-state="upcoming"] .tl-time{color:var(--amber)}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--shadow);
  transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s,border-color .22s;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.32)}
.tl-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.75}
.tl-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tl-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft)}
.tl-state{font-size:13px;color:var(--text-3)}
.tl-card--featured{display:grid;grid-template-columns:1fr 220px;gap:20px;align-items:center}
.tl-card--featured .tl-thumb{border-radius:var(--r-md);overflow:hidden;position:relative;aspect-ratio:16/9}
.tl-card--featured .tl-thumb img{width:100%;height:100%;object-fit:cover}
.tl-card--featured .tl-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,8,15,.85) 100%);
}
@media(max-width:720px){
  .tl-card--featured{grid-template-columns:1fr}
  .tl-card--featured .tl-thumb{order:-1}
  .tl-item{padding-left:34px}
  .timeline::before{left:9px}
  .tl-dot{left:2px;width:14px;height:14px}
  .tl-time{font-size:24px}
}

/* ---------- 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);
  color:var(--text-2);white-space:nowrap;
}
.chip-mint{color:var(--mint);border-color:rgba(34,224,180,.35);background:rgba(34,224,180,.08)}
.chip-amber{color:var(--amber);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.08)}
.chip-muted{color:var(--text-3);border-color:rgba(255,255,255,.08);background:rgba(255,255,255,.03)}
.live-dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mint);
  margin-right:6px;box-shadow:0 0 8px var(--mint);animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

/* ---------- 更多按钮 ---------- */
.more-row{display:flex;justify-content:center;margin-top:40px}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(255,255,255,.02);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s,background .2s;
}
.faq-item:hover{border-color:rgba(34,224,180,.3)}
.faq-item.is-open{border-color:rgba(34,224,180,.38);background:rgba(34,224,180,.04)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-2px}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid rgba(34,224,180,.4);color:var(--mint);font-size:16px;line-height:1;
  transition:transform .2s ease,background .2s;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(34,224,180,.14)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s cubic-bezier(.4,0,.2,1)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a .inner{
  padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-top:1px solid var(--line-soft);margin-top:0;padding-top:14px;
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:36px;
  border-radius:var(--r-lg);
  border:1px solid rgba(34,224,180,.25);
  background:linear-gradient(120deg,rgba(34,224,180,.1),rgba(91,124,250,.08));
  box-shadow:var(--mint-glow);
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35}
.cta-band p{margin-top:8px;font-size:15px;color:var(--text-2)}
@media(max-width:640px){.cta-band{padding:24px}.cta-band h2{font-size:21px}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg);margin-top:24px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--grad);opacity:.65;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-2);max-width:300px}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s,transform .18s}
.footer-links a:hover{color:var(--mint);transform:translateX(2px)}
.footer-note{font-size:14px;line-height:1.85;color:var(--text-2)}
.footer-note strong{color:var(--text);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.to-top{color:var(--text-2);transition:color .2s}
.to-top:hover{color:var(--mint)}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- 响应式导航 ---------- */
@media(max-width:900px){
  .nav-link{padding:0 10px;font-size:14px}
}
@media(max-width:768px){
  .site-header{height:60px}
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .crumbs{margin-top:60px}
  .page-hero{padding:40px 0;min-height:260px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
}

/* ---------- 渐入 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease,transform .4s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
    --bg:#05080F;
    --bg-2:#0A101B;
    --card:#0E1726;
    --mint:#22E0B4;
    --violet:#5B7CFA;
    --amber:#FFC24B;
    --text:#EAF2FF;
    --text-2:#9FB0C8;
    --text-3:#6C7C93;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --r-lg:18px;
    --r-md:14px;
    --r-sm:12px;
    --shadow:0 8px 24px rgba(0,0,0,.35);
    --shadow-hover:0 16px 40px rgba(0,0,0,.45);
    --glow-mint:0 8px 28px rgba(34,224,180,.22);
    --glow-violet:0 10px 40px rgba(91,124,250,.18);
    --ease:cubic-bezier(.4,0,.2,1);
    --font-num:"Barlow Condensed","Barlow","PingFang SC","HarmonyOS Sans SC","Noto Sans SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  body::after{
    content:"";
    position:fixed;
    top:-160px;right:-140px;
    width:380px;height:380px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(91,124,250,.22),transparent 68%);
    filter:blur(80px);
    pointer-events:none;
    z-index:0;
  }
  body.lock{overflow:hidden;}
  h1,h2,h3,h4,p,figure,blockquote{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  ::selection{background:rgba(34,224,180,.28);color:#fff;}
  :focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 40px;
  }
  .section{padding:96px 0;position:relative;z-index:1;}
  .section-tight{padding:64px 0;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;
    border:1px solid transparent;border-radius:var(--r-sm);
    font-size:15px;font-weight:600;line-height:1;
    cursor:pointer;
    transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .btn-primary{
    background:var(--mint);
    color:#04120D;
    box-shadow:var(--glow-mint);
  }
  .btn-primary:hover{
    background:linear-gradient(135deg,#5B7CFA,#22E0B4);
    transform:translateY(-1px);
    box-shadow:0 12px 34px rgba(34,224,180,.3);
  }
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:rgba(255,255,255,.02);
    border-color:rgba(34,224,180,.45);
    color:var(--mint);
  }
  .btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px);}
  .btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:999px;}
  .btn-pill{border-radius:999px;}
  .btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--mint);
    transition:color .2s var(--ease);
  }
  .link-arrow .arw{transition:transform .2s var(--ease);}
  .link-arrow:hover .arw{transform:translateX(4px);}

  /* ---------- 标签 ---------- */
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 11px;
    border-radius:999px;
    border:1px solid var(--line-strong);
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    font-size:13px;line-height:1;color:var(--text-2);
    white-space:nowrap;
  }
  .tag-mint{color:var(--mint);border-color:rgba(34,224,180,.35);}
  .tag-amber{color:var(--amber);border-color:rgba(255,194,75,.35);}
  .tag-sm{height:23px;font-size:12px;padding:0 9px;}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(6,10,18,.72);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(34,224,180,.55) 45%,transparent);
    pointer-events:none;
  }
  .header-inner{display:flex;align-items:center;gap:28px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    display:grid;place-items:center;
    color:var(--mint);
    border:1px solid rgba(34,224,180,.45);
    background:rgba(34,224,180,.08);
    box-shadow:0 0 18px rgba(34,224,180,.16);
  }
  .brand-text{font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--text);}
  .nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto;}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    height:44px;padding:0 13px;
    font-size:15px;color:var(--text-2);
    transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:13px;right:13px;bottom:6px;height:2px;
    border-radius:2px;background:var(--mint);
    opacity:0;transform:scaleX(.5);
    transition:opacity .18s var(--ease),transform .18s var(--ease);
  }
  .nav-link:hover{color:var(--text);}
  .nav-link:hover::after{opacity:.45;transform:scaleX(1);}
  .nav-link.is-active{color:var(--mint);}
  .nav-link.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px #22E0B4;}
  .nav-link.is-active::before{
    content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);
    width:4px;height:4px;border-radius:50%;
    background:var(--mint);box-shadow:0 0 10px #22E0B4;
  }
  .header-actions{display:flex;align-items:center;gap:12px;flex:none;}
  .nav-toggle{
    display:none;width:44px;height:44px;
    align-items:center;justify-content:center;
    background:rgba(255,255,255,.03);
    border:1px solid var(--line-strong);
    border-radius:12px;color:var(--text);
    cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}

  /* ---------- 移动抽屉 ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;
    display:none;flex-direction:column;
    padding:16px 24px 28px;
    background:rgba(5,8,15,.97);
    backdrop-filter:blur(10px);
  }
  .mobile-drawer.is-open{display:flex;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;}
  .drawer-close{
    width:44px;height:44px;display:grid;place-items:center;
    background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
    border-radius:12px;color:var(--text);font-size:22px;line-height:1;cursor:pointer;
  }
  .drawer-nav{display:flex;flex-direction:column;margin-top:18px;}
  .drawer-link{
    display:flex;align-items:center;gap:14px;
    height:56px;font-size:20px;color:var(--text-2);
    border-bottom:1px solid var(--line);
    transition:color .18s var(--ease);
  }
  .drawer-link .idx{font-family:var(--font-num);font-size:15px;color:var(--text-3);width:24px;flex:none;}
  .drawer-link.is-active{color:var(--mint);}
  .drawer-link.is-active .idx{color:var(--mint);}
  .drawer-cta{margin-top:auto;padding-top:24px;}
  .drawer-cta .btn{width:100%;height:48px;}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;
    padding:24px 0 16px;
    font-size:14px;color:var(--text-2);
    position:relative;z-index:1;
  }
  .breadcrumb a{transition:color .18s var(--ease);}
  .breadcrumb a:hover{color:var(--text);}
  .breadcrumb .sep{color:var(--text-3);}
  .breadcrumb .current{color:var(--mint);}

  /* ---------- 窄标题带 ---------- */
  .hero-band{
    position:relative;overflow:hidden;
    padding:52px 0 48px;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:
      linear-gradient(135deg,rgba(91,124,250,.10),rgba(34,224,180,.10)),
      var(--bg-2);
  }
  .hero-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px),
      linear-gradient(to bottom,rgba(255,255,255,.045) 1px,transparent 1px);
    background-size:40px 40px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  }
  .hero-band .container{position:relative;z-index:1;min-height:200px;display:flex;align-items:center;}
  .hero-copy{max-width:820px;}
  .hero-copy h1{
    margin-top:16px;
    font-size:52px;line-height:1.15;font-weight:800;letter-spacing:.01em;
  }
  .hero-copy h1 .kw{color:var(--mint);}
  .hero-sub{
    margin-top:16px;
    font-size:18px;color:var(--text-2);line-height:1.7;
    max-width:640px;
  }

  /* ---------- 板块标题 ---------- */
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
  .sec-title{position:relative;padding-left:16px;font-size:34px;line-height:1.25;font-weight:700;}
  .sec-title::before{
    content:"";position:absolute;left:0;top:8px;
    width:4px;height:22px;border-radius:999px;background:var(--mint);
    box-shadow:0 0 12px rgba(34,224,180,.6);
  }
  .sec-desc{margin-top:12px;padding-left:16px;font-size:15px;color:var(--text-2);max-width:560px;}

  /* ---------- 步骤布局 ---------- */
  .steps-section{padding-top:64px;}
  .steps-layout{
    display:grid;
    grid-template-columns:240px minmax(0,1fr);
    gap:56px;
    margin-top:44px;
  }
  .steps-toc{
    position:sticky;top:96px;
    align-self:start;
    padding-left:18px;
    border-left:1px solid var(--line);
  }
  .toc-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;}
  .toc-link{
    display:flex;align-items:center;gap:10px;
    padding:9px 10px;
    margin-left:-19px;padding-left:17px;
    border-left:2px solid transparent;
    font-size:14px;color:var(--text-2);
    border-radius:0 10px 10px 0;
    transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
  }
  .toc-link .n{font-family:var(--font-num);font-size:14px;color:var(--text-3);width:20px;flex:none;transition:color .18s var(--ease);}
  .toc-link:hover{color:var(--text);background:rgba(255,255,255,.03);}
  .toc-link.is-active{color:var(--mint);border-left-color:var(--mint);background:rgba(34,224,180,.07);}
  .toc-link.is-active .n{color:var(--mint);}

  .steps-body{min-width:0;}
  .step-card{
    padding:34px 0;
    border-bottom:1px solid var(--line);
    scroll-margin-top:96px;
  }
  .step-card:first-of-type{padding-top:0;}
  .step-card:last-of-type{border-bottom:none;padding-bottom:0;}
  .step-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;}
  .step-num{
    font-family:var(--font-num);
    font-size:44px;font-weight:800;line-height:1;
    color:rgba(34,224,180,.9);
    letter-spacing:.02em;
    flex:none;
  }
  .step-title{font-size:22px;line-height:1.4;font-weight:600;color:var(--text);}
  .step-tags{display:flex;gap:8px;flex-wrap:wrap;margin-left:auto;}
  .step-desc{margin-top:14px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:660px;}
  .step-points{margin-top:14px;display:grid;gap:9px;max-width:660px;}
  .step-points li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--text-2);}
  .step-points li::before{
    content:"";position:absolute;left:0;top:9px;
    width:6px;height:6px;border-radius:2px;background:var(--mint);opacity:.8;
  }
  .step-figure{margin-top:22px;max-width:660px;}
  .step-figure img{
    width:100%;aspect-ratio:16/9;object-fit:cover;
    border-radius:var(--r-md);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .step-figcap{margin-top:10px;font-size:13px;color:var(--text-3);}

  /* ---------- 相关分类 ---------- */
  .rel-block{margin-top:56px;}
  .rel-block h2{
    position:relative;padding-left:14px;
    font-size:22px;line-height:1.4;font-weight:600;
  }
  .rel-block h2::before{
    content:"";position:absolute;left:0;top:5px;
    width:4px;height:20px;border-radius:999px;background:var(--mint);
  }
  .rel-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px;}
  .rel-card{
    display:flex;align-items:center;gap:16px;
    padding:16px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--shadow);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .rel-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(34,224,180,.35);
  }
  .rel-card img{
    width:96px;height:72px;object-fit:cover;border-radius:10px;flex:none;
    border:1px solid var(--line);
  }
  .rel-card h3{font-size:17px;font-weight:600;color:var(--text);}
  .rel-card p{margin-top:4px;font-size:13px;line-height:1.6;color:var(--text-2);}
  .rel-card .arw{margin-left:auto;color:var(--mint);font-size:18px;transition:transform .2s var(--ease);}
  .rel-card:hover .arw{transform:translateX(4px);}

  /* ---------- FAQ ---------- */
  .faq-section{border-top:1px solid var(--line);}
  .faq-list{display:grid;gap:12px;max-width:860px;margin-top:36px;}
  .faq-item{
    border:1px solid var(--line);
    border-radius:var(--r-md);
    background:var(--card);
    overflow:hidden;
    transition:border-color .2s var(--ease);
  }
  .faq-item:hover{border-color:rgba(34,224,180,.3);}
  .faq-item.is-open{border-color:rgba(34,224,180,.4);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;
    background:none;border:0;cursor:pointer;
    font-size:17px;font-weight:600;color:var(--text);text-align:left;
    line-height:1.5;
  }
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:8px;
    display:grid;place-items:center;
    border:1px solid rgba(34,224,180,.3);
    color:var(--mint);font-size:16px;line-height:1;
    transition:transform .2s var(--ease),background .2s var(--ease);
  }
  .faq-item.is-open .faq-icon{background:rgba(34,224,180,.14);transform:rotate(180deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
  .faq-a-inner{
    padding:0 22px 20px;
    font-size:15px;line-height:1.8;color:var(--text-2);
  }
  .faq-a-inner::before{
    content:"";display:block;height:1px;background:var(--line);margin-bottom:14px;
  }

  /* ---------- CTA ---------- */
  .cta-section{padding-top:0;}
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    padding:36px 40px;
    border-radius:var(--r-lg);
    border:1px solid rgba(34,224,180,.22);
    background:linear-gradient(135deg,rgba(91,124,250,.12),rgba(34,224,180,.12));
    box-shadow:var(--glow-violet);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .cta-band h2{font-size:26px;line-height:1.3;font-weight:700;}
  .cta-band p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:520px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    background:#05080F;
    padding-top:0;
    z-index:1;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(34,224,180,.6),rgba(91,124,250,.45),transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.3fr;
    gap:40px;
    padding:64px 0 44px;
  }
  .footer-desc{
    margin-top:16px;
    font-size:14px;line-height:1.85;color:var(--text-2);
    max-width:30ch;
  }
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
  .footer-links{display:grid;gap:10px;}
  .footer-links a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease);}
  .footer-links a:hover{color:var(--mint);}
  .footer-note{font-size:13px;line-height:1.9;color:var(--text-3);}
  .footer-note strong{color:var(--text-2);font-weight:600;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:20px 0 32px;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }
  .to-top{color:var(--text-2);transition:color .18s var(--ease);}
  .to-top:hover{color:var(--mint);}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
  .reveal.is-visible{opacity:1;transform:none;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .container{padding:0 32px;}
  }
  @media (max-width:1024px){
    .header-inner{gap:16px;}
    .nav-menu{gap:0;}
    .nav-link{padding:0 10px;font-size:14px;}
    .hero-copy h1{font-size:42px;}
    .sec-title{font-size:28px;}
    .steps-layout{grid-template-columns:1fr;gap:32px;}
    .steps-toc{
      position:relative;top:0;
      display:flex;gap:8px;
      overflow-x:auto;
      padding:0 0 16px;
      border-left:none;
      border-bottom:1px solid var(--line);
      scrollbar-width:none;
    }
    .steps-toc::-webkit-scrollbar{display:none;}
    .toc-title{display:none;}
    .toc-link{
      flex:none;
      margin-left:0;padding:8px 12px;
      border-left:none;
      border-bottom:2px solid transparent;
      border-radius:10px;
      white-space:nowrap;
    }
    .toc-link.is-active{border-bottom-color:var(--mint);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .cta-band{padding:28px;}
  }
  @media (max-width:768px){
    .container{padding:0 20px;}
    .nav-menu{display:none;}
    .header-actions .btn{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-inner{height:60px;}
    .site-header{position:sticky;}
    .section{padding:64px 0;}
    .section-tight{padding:48px 0;}
    .hero-band{padding:36px 0 32px;}
    .hero-band .container{min-height:0;}
    .hero-copy h1{font-size:32px;}
    .hero-sub{font-size:16px;}
    .sec-title{font-size:24px;}
    .sec-title::before{top:5px;height:18px;}
    .steps-section{padding-top:48px;}
    .step-card{padding:28px 0;scroll-margin-top:80px;}
    .step-num{font-size:34px;}
    .step-title{font-size:19px;}
    .step-desc{font-size:15px;}
    .step-tags{margin-left:0;width:100%;}
    .rel-grid{grid-template-columns:1fr;}
    .cta-band{padding:24px;gap:20px;}
    .cta-band h2{font-size:21px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;}
    .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;padding:18px 0 28px;}
  }
  @media (max-width:520px){
    .hero-copy h1{font-size:28px;}
    .rel-card{flex-wrap:wrap;}
    .rel-card img{width:100%;height:132px;}
    .rel-card .arw{margin-left:0;}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .reveal{opacity:1;transform:none;transition:none;}
    *{animation:none!important;transition-duration:.01ms!important;}
  }

/* roulang page: category3 */
:root{
    --bg:#05080F;
    --bg-2:#0A101B;
    --card:#0E1726;
    --mint:#22E0B4;
    --blue:#5B7CFA;
    --amber:#FFC24B;
    --text:#EAF2FF;
    --muted:#9FB0C8;
    --weak:#6C7C93;
    --line:rgba(255,255,255,.08);
    --radius-lg:18px;
    --radius-sm:14px;
    --shadow:0 8px 24px rgba(0,0,0,.35);
    --shadow-hover:0 16px 40px rgba(0,0,0,.45);
    --glow-mint:0 8px 28px rgba(34,224,180,.22);
    --glow-blue:0 10px 40px rgba(91,124,250,.18);
    --ease:cubic-bezier(.4,0,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  body.nav-lock{overflow:hidden}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  p{margin:0 0 1.1em}
  p:last-child{margin-bottom:0}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  @media (min-width:1024px){.container{padding:0 40px}}
  @media (max-width:640px){.container{padding:0 20px}}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(6,10,18,.72);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(34,224,180,.55),rgba(91,124,250,.35),transparent);
  }
  .header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em;color:var(--text)}
  .brand-mark{
    width:34px;height:34px;display:grid;place-items:center;border-radius:10px;
    color:var(--mint);border:1px solid rgba(34,224,180,.45);
    background:rgba(34,224,180,.08);box-shadow:var(--glow-mint);
  }
  .brand-text{font-size:17px;font-weight:800}
  .nav-menu{display:flex;align-items:center;gap:4px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    min-height:44px;padding:0 14px;font-size:15px;color:var(--muted);
    border-radius:10px;transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
    background:var(--mint);opacity:0;transform:scaleX(.35);transform-origin:center;
    transition:opacity .18s var(--ease),transform .18s var(--ease);
  }
  .nav-link:hover{color:var(--text)}
  .nav-link:hover::after{opacity:.55;transform:scaleX(1)}
  .nav-link.is-active{color:var(--mint)}
  .nav-link.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(34,224,180,.9)}
  .nav-link.is-active::before{
    content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);
    width:4px;height:4px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .nav-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.04);
    color:var(--text);transition:border-color .18s var(--ease),background .18s var(--ease);
  }
  .nav-toggle:hover{border-color:rgba(34,224,180,.45);background:rgba(34,224,180,.10)}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:12px;
    font-size:15px;font-weight:600;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  }
  .btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
  .btn-primary{background:var(--mint);color:#04120D;box-shadow:var(--glow-mint)}
  .btn-primary:hover{background:linear-gradient(135deg,#5B7CFA,#22E0B4);color:#04160F;transform:translateY(-1px);box-shadow:0 14px 34px rgba(34,224,180,.34)}
  .btn-ghost{background:transparent;border-color:rgba(34,224,180,.45);color:var(--mint)}
  .btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px)}
  .btn-pill{border-radius:999px}
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px}
  .btn:disabled{opacity:.4;transform:none;cursor:not-allowed}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--mint);font-size:14px;font-weight:600;background:none;border:0;padding:4px 0;
    transition:color .18s var(--ease);
  }
  .btn-link::after{content:"→";display:inline-block;transition:transform .2s var(--ease)}
  .btn-link:hover{color:#6ff3d5}
  .btn-link:hover::after{transform:translateX(4px)}
  .btn-link:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}

  /* ---------- 标签 / 胶囊 ---------- */
  .pill{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
    font-size:13px;line-height:1;border-radius:999px;
    border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--mint);
    white-space:nowrap;
  }
  .pill-amber{color:var(--amber);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.08)}
  .pill-muted{color:var(--muted);border-color:var(--line);background:rgba(255,255,255,.04)}
  .pill-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:24px 0 16px;font-size:14px;color:var(--muted)}
  .breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
  .breadcrumb a:hover{color:var(--text)}
  .breadcrumb .sep{color:var(--weak)}
  .breadcrumb .current{color:var(--mint)}

  /* ---------- Hero 标题带 ---------- */
  .hero-band{
    position:relative;overflow:hidden;
    padding:64px 0 128px;
    background-image:
      linear-gradient(100deg,rgba(5,8,15,.95) 0%,rgba(5,8,15,.80) 48%,rgba(5,8,15,.58) 100%),
      url("/assets/images/backpic/back-2.webp");
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .hero-band::before{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:60px 60px;
    pointer-events:none;
  }
  .hero-band::after{
    content:"";position:absolute;right:-90px;bottom:-140px;width:380px;height:380px;border-radius:50%;
    background:radial-gradient(circle,rgba(91,124,250,.30),transparent 68%);
    filter:blur(80px);pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;max-width:760px}
  .hero-title{font-size:56px;line-height:1.15;font-weight:800;letter-spacing:.01em;margin:18px 0 16px}
  .hero-sub{font-size:17px;color:var(--muted);max-width:34em;margin-bottom:28px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
  .hero-meta{margin-top:24px;font-size:13px;color:var(--weak);letter-spacing:.02em}
  @media (max-width:1024px){.hero-title{font-size:40px}}
  @media (max-width:640px){
    .hero-band{padding:48px 0 104px}
    .hero-title{font-size:32px}
    .hero-sub{font-size:15px}
  }

  /* ---------- 总览条 ---------- */
  .overview-wrap{position:relative;z-index:3;margin-top:-64px}
  .glass{
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow);
  }
  .overview{padding:28px}
  .overview-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
  .overview-label{font-size:13px;color:var(--weak);letter-spacing:.08em}
  .overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .stat{border-top:2px solid transparent;border-image:linear-gradient(90deg,#5B7CFA,#22E0B4) 1;padding-top:16px}
  .stat-num{
    font-family:"Barlow Condensed","Barlow","DIN Alternate",system-ui,sans-serif;
    font-size:64px;line-height:1;font-weight:800;letter-spacing:-.01em;color:var(--mint);
    font-variant-numeric:tabular-nums;
  }
  .stat-num .unit{font-size:18px;font-weight:600;color:var(--muted);margin-left:6px;letter-spacing:.04em}
  .stat-desc{font-size:14px;color:var(--muted);margin-top:10px}
  .overview-track{margin-top:24px}
  .track-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--weak);margin-bottom:10px}
  .progress{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;position:relative}
  .progress-fill{position:relative;height:100%;border-radius:999px;background:linear-gradient(135deg,#5B7CFA,#22E0B4);min-width:6px}
  .progress-fill::after{
    content:"";position:absolute;right:-1px;top:50%;transform:translateY(-50%);
    width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 0 14px rgba(34,224,180,.9);
  }
  @media (max-width:900px){
    .overview-grid{grid-template-columns:repeat(2,1fr)}
    .stat-num{font-size:44px}
    .overview-grid .stat:last-child{grid-column:span 2}
  }
  @media (max-width:640px){
    .overview-wrap{margin-top:-40px}
    .overview{padding:20px}
    .overview-grid{grid-template-columns:1fr;gap:16px}
    .overview-grid .stat:last-child{grid-column:auto}
    .stat-num{font-size:36px}
  }
  .stat-num-amber{color:var(--amber)}

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
  .sec-title{display:flex;align-items:center;gap:12px;font-size:36px;line-height:1.25;font-weight:700}
  .sec-title .bar{width:4px;height:22px;border-radius:2px;background:var(--mint);flex:none}
  .sec-desc{font-size:15px;color:var(--muted);margin-top:12px;max-width:38em}
  @media (max-width:1024px){
    .section{padding:64px 0}
    .sec-title{font-size:28px}
  }
  @media (max-width:640px){
    .section{padding:48px 0}
    .sec-title{font-size:24px}
    .sec-head{margin-bottom:24px}
  }

  /* ---------- Bento 奖励网格 ---------- */
  .bento{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;grid-auto-flow:dense}
  .reward-card{
    position:relative;display:flex;flex-direction:column;gap:14px;
    padding:24px;border-radius:var(--radius-lg);
    background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .reward-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(34,224,180,.35)}
  .reward-card.span-2{grid-column:span 2}
  .reward-card.is-feature{
    grid-column:span 2;grid-row:span 2;
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-color:rgba(34,224,180,.28);
    box-shadow:var(--glow-mint);
    padding:28px;
    gap:16px;
  }
  .reward-card.is-feature:hover{border-color:rgba(34,224,180,.55)}
  .feature-img{
    width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;
    border:1px solid rgba(255,255,255,.08);
  }
  .reward-name{font-size:18px;font-weight:600;line-height:1.4}
  .is-feature .reward-name{font-size:22px;font-weight:700}
  .reward-value{
    font-family:"Barlow Condensed","Barlow","DIN Alternate",system-ui,sans-serif;
    font-size:40px;line-height:1;font-weight:800;color:var(--amber);
    font-variant-numeric:tabular-nums;
  }
  .is-feature .reward-value{font-size:72px}
  .reward-value .unit{font-size:15px;color:var(--muted);font-weight:600;margin-left:6px}
  .reward-desc{font-size:14px;color:var(--muted);line-height:1.7}
  .is-feature .reward-desc{font-size:15px}
  .reward-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
  .reward-foot-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--weak)}
  .reward-card .progress{height:6px}
  .reward-card .progress-fill::after{width:10px;height:10px}
  .feature-nodes{display:flex;justify-content:space-between;gap:8px;margin-top:2px}
  .node{display:flex;flex-direction:column;align-items:center;gap:6px;flex:1;font-size:12px;color:var(--weak)}
  .node-dot{width:10px;height:10px;border-radius:50%;border:1px solid rgba(255,255,255,.22);background:transparent}
  .node.done .node-dot{background:var(--mint);border-color:var(--mint);box-shadow:0 0 10px rgba(34,224,180,.85)}
  .node.done{color:var(--mint)}
  @media (max-width:1024px){
    .bento{grid-template-columns:repeat(2,1fr)}
    .reward-card.is-feature{grid-column:span 2;grid-row:auto}
    .reward-card.span-2{grid-column:span 2}
    .is-feature .reward-value{font-size:56px}
  }
  @media (max-width:640px){
    .bento{grid-template-columns:1fr;gap:16px}
    .reward-card,.reward-card.is-feature,.reward-card.span-2{grid-column:span 1;grid-row:auto;padding:20px}
    .is-feature .reward-value{font-size:44px}
    .reward-value{font-size:34px}
  }

  /* ---------- 流程 ---------- */
  .section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .step-card{
    padding:26px;border-radius:var(--radius-lg);background:var(--card);
    border:1px solid var(--line);box-shadow:var(--shadow);
    transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .step-card:hover{transform:translateY(-3px);border-color:rgba(34,224,180,.32);box-shadow:var(--shadow-hover)}
  .step-num{
    font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;
    font-size:44px;line-height:1;font-weight:800;color:rgba(34,224,180,.22);
  }
  .step-title{font-size:18px;font-weight:600;margin:8px 0 8px}
  .step-text{font-size:14px;color:var(--muted);line-height:1.75}
  @media (max-width:900px){.steps{grid-template-columns:1fr}}
  @media (max-width:640px){.step-card{padding:20px}}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:900px}
  .faq-item{
    border:1px solid var(--line);border-radius:var(--radius-sm);
    background:var(--card);margin-bottom:12px;overflow:hidden;
    transition:border-color .2s var(--ease);
  }
  .faq-item:hover{border-color:rgba(34,224,180,.30)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:none;border:0;text-align:left;
    font-size:17px;font-weight:600;color:var(--text);min-height:44px;
  }
  .faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-3px}
  .faq-icon{flex:none;color:var(--mint);transition:transform .2s var(--ease);font-size:20px;line-height:1}
  .faq-item.is-open .faq-icon{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
  .faq-item.is-open .faq-a{max-height:420px}
  .faq-a p{
    margin:0;padding:16px 20px 20px;border-top:1px solid var(--line);
    font-size:15px;line-height:1.8;color:var(--muted);
  }

  /* ---------- CTA ---------- */
  .cta-wrap{padding:0 0 96px}
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    padding:40px;border-radius:22px;
    background:linear-gradient(135deg,rgba(91,124,250,.14),rgba(34,224,180,.10));
    border:1px solid rgba(34,224,180,.22);
    box-shadow:var(--glow-blue);
  }
  .cta-title{font-size:28px;font-weight:700;line-height:1.35}
  .cta-text{font-size:15px;color:var(--muted);margin-top:10px;max-width:36em}
  @media (max-width:900px){
    .cta-wrap{padding-bottom:64px}
    .cta-band{padding:28px}
    .cta-title{font-size:22px}
    .cta-band .btn{width:100%}
  }
  @media (max-width:640px){.cta-wrap{padding-bottom:48px}}

  /* ---------- 页脚 ---------- */
  .site-footer{position:relative;background:#05080F;padding:64px 0 0;border-top:1px solid var(--line)}
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--mint),rgba(91,124,250,.6),transparent);
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
  .footer-desc{font-size:14px;color:var(--weak);line-height:1.8;margin-top:16px;max-width:26em}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.02em}
  .footer-links{display:flex;flex-direction:column}
  .footer-links a{
    display:inline-flex;align-items:center;min-height:36px;font-size:14px;color:var(--muted);
    transition:color .18s var(--ease);
  }
  .footer-links a:hover{color:var(--mint)}
  .footer-note{font-size:14px;color:var(--weak);line-height:1.8}
  .footer-note strong{color:var(--muted);font-weight:600}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding:24px 0;border-top:1px solid var(--line);
    font-size:13px;color:var(--weak);
  }
  .to-top{color:var(--mint);transition:opacity .18s var(--ease)}
  .to-top:hover{opacity:.75}
  @media (max-width:900px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .site-footer{padding-top:48px}
  }
  @media (max-width:560px){
    .footer-grid{grid-template-columns:1fr;gap:28px}
  }

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
  .reveal.is-in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .reveal{opacity:1;transform:none;transition:none}
    *{animation:none!important;transition:none!important}
  }

  /* ---------- 移动端导航 ---------- */
  @media (max-width:900px){
    .header-inner{height:60px}
    .nav-toggle{display:inline-flex}
    .header-actions .btn-header{display:none}
    .nav-menu{
      position:fixed;left:0;right:0;top:60px;bottom:0;z-index:58;
      flex-direction:column;align-items:stretch;gap:0;
      padding:16px 20px 120px;
      background:rgba(5,8,15,.98);
      -webkit-backdrop-filter:blur(20px);
      backdrop-filter:blur(20px);
      border-top:1px solid var(--line);
      overflow-y:auto;
      opacity:0;visibility:hidden;transform:translateY(-8px);
      transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
    }
    .nav-menu.is-open{opacity:1;visibility:visible;transform:none}
    .nav-link{
      font-size:20px;line-height:56px;min-height:56px;padding:0 8px;border-radius:0;
      border-bottom:1px solid var(--line);color:var(--text);
    }
    .nav-link::after{left:8px;right:auto;width:22px;bottom:0}
    .nav-link.is-active::before{display:none}
    .nav-menu::after{
      content:"进入奖励中心";display:flex;align-items:center;justify-content:center;
      margin-top:24px;height:48px;border-radius:999px;
      background:var(--mint);color:#04120D;font-weight:700;font-size:16px;
      box-shadow:var(--glow-mint);
    }
    .nav-menu::after{pointer-events:none}
    @media (hover:hover){
      .reward-card:hover,.step-card:hover{transform:none}
    }
  }

/* roulang page: category4 */
:root{
  --bg:#05080F;
  --bg2:#0A101B;
  --card:#0E1726;
  --mint:#22E0B4;
  --violet:#5B7CFA;
  --amber:#FFC24B;
  --danger:#FF5A7A;
  --text:#EAF2FF;
  --text2:#9FB0C8;
  --text3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --glow-mint:0 8px 28px rgba(34,224,180,.22);
  --glow-violet:0 10px 40px rgba(91,124,250,.18);
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-card-hover:0 16px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.4,0,.2,1);
  --maxw:1240px;
  --num-font:"Barlow Condensed","Barlow","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{list-style:none;padding:0;}
::selection{background:rgba(34,224,180,.28);color:#04120D;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

/* 容器 */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
}

/* 顶部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  height:72px;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.45),transparent);
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  height:72px;
  padding:0 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  border:1px solid rgba(34,224,180,.36);
  background:rgba(34,224,180,.09);
  color:var(--mint);
  box-shadow:0 0 18px rgba(34,224,180,.14);
}
.brand-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--text);
  white-space:nowrap;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text2);
  border-radius:10px;
  transition:color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:9px;
  height:2px;
  border-radius:2px;
  background:var(--mint);
  opacity:0;
  transform:scaleX(.55);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.03);}
.nav-link:hover::after{opacity:.5;transform:scaleX(1);}
.nav-link.is-active{color:var(--mint);}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(34,224,180,.9);}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  top:7px;left:50%;
  transform:translateX(-50%);
  width:4px;height:4px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 8px var(--mint);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  border:1px solid transparent;
  text-align:center;
}
.btn-primary{
  background:var(--mint);
  color:#04120D;
  border-radius:999px;
  box-shadow:var(--glow-mint);
}
.btn-primary:hover{
  background:linear-gradient(135deg,#5B7CFA,#22E0B4);
  color:#04120D;
  transform:translateY(-1px);
  box-shadow:0 12px 32px rgba(34,224,180,.34);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(34,224,180,.24);}
.btn-ghost{
  background:transparent;
  color:var(--mint);
  border:1px solid rgba(34,224,180,.55);
  border-radius:999px;
}
.btn-ghost:hover{
  background:rgba(34,224,180,.12);
  border-color:var(--mint);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--mint);
  font-size:14px;
  font-weight:600;
  transition:color .18s var(--ease);
}
.link-arrow span.arr{transition:transform .18s var(--ease);display:inline-block;}
.link-arrow:hover{color:#5B7CFA;}
.link-arrow:hover span.arr{transform:translateX(4px);}

/* 移动导航 */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:rgba(5,8,15,.97);
  backdrop-filter:blur(12px);
  display:flex;
  flex-direction:column;
  padding:88px 24px 32px;
  transform:translateX(100%);
  opacity:0;
  visibility:hidden;
  transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s;
}
.nav-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible;}
.drawer-close{
  position:absolute;
  top:18px;right:20px;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:22px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;
  align-items:center;
  gap:14px;
  height:56px;
  font-size:20px;
  color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-nav a .idx{
  font-family:var(--num-font);
  font-size:15px;
  color:var(--mint);
  letter-spacing:.06em;
}
.drawer-nav a.is-active{color:var(--mint);}
.drawer-cta{margin-top:auto;width:100%;}

/* 主体骨架 */
main{padding-top:72px;}
section{position:relative;}

/* 面包屑 */
.crumb-wrap{padding:24px 0 16px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text2);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text2);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--text);}
.breadcrumb .sep{color:var(--text3);}
.breadcrumb .current{color:var(--mint);}

/* 页面标题带 */
.page-banner{
  position:relative;
  overflow:hidden;
  padding:44px 0 48px;
  background:linear-gradient(135deg,rgba(91,124,250,.10),rgba(34,224,180,.08));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-90px;bottom:-140px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,180,.22),transparent 70%);
  filter:blur(80px);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:1;max-width:780px;}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(34,224,180,.4);
  background:rgba(255,255,255,.04);
  color:var(--mint);
  font-size:13px;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.banner-tag .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 8px var(--mint);
}
.page-banner h1{
  font-size:44px;
  line-height:1.15;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.page-banner h1 em{
  font-style:normal;
  color:var(--mint);
}
.banner-sub{
  font-size:16px;
  line-height:1.75;
  color:var(--text2);
  max-width:42ch;
}

/* 栏目标题 */
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:28px;
  line-height:1.25;
  font-weight:700;
  margin-bottom:10px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:22px;
  border-radius:2px;
  background:var(--mint);
  box-shadow:0 0 14px rgba(34,224,180,.6);
}
.sec-desc{
  font-size:14px;
  color:var(--text2);
  padding-left:16px;
  margin-bottom:28px;
}

/* 公告 + 数据面板双栏 */
.bulletin-section{padding:56px 0 72px;}
.bulletin-grid{
  display:grid;
  grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:24px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  color:var(--text2);
  font-size:13px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(34,224,180,.4);}
.chip.is-active{
  color:#04120D;
  background:var(--mint);
  border-color:var(--mint);
  font-weight:600;
  box-shadow:0 6px 18px rgba(34,224,180,.22);
}
.notice-list{
  border-top:1px solid var(--line);
}
.notice-item{
  display:grid;
  grid-template-columns:92px minmax(0,1fr);
  gap:24px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.notice-item:hover{background:rgba(255,255,255,.02);}
.notice-date{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-top:2px;
}
.notice-date .d{
  font-family:var(--num-font);
  font-size:24px;
  font-weight:700;
  color:var(--text);
  line-height:1.1;
  letter-spacing:.02em;
}
.notice-date .t{
  font-family:var(--num-font);
  font-size:13px;
  color:var(--text3);
  letter-spacing:.04em;
}
.notice-body h3{
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  margin:8px 0 8px;
  color:var(--text);
  transition:color .18s var(--ease);
}
.notice-item:hover .notice-body h3{color:var(--mint);}
.notice-body p{
  font-size:15px;
  line-height:1.75;
  color:var(--text2);
  margin-bottom:12px;
  max-width:44ch;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  font-size:13px;
  color:var(--text2);
  white-space:nowrap;
}
.tag-mint{color:var(--mint);border-color:rgba(34,224,180,.35);background:rgba(34,224,180,.07);}
.tag-amber{color:var(--amber);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.07);}
.tag-violet{color:#9DAEFF;border-color:rgba(91,124,250,.4);background:rgba(91,124,250,.1);}
.load-more-wrap{display:flex;justify-content:center;margin-top:32px;}

/* 右侧数据面板 */
.side-col{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.glass-panel{
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:26px;
  box-shadow:var(--shadow-card);
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:20px;
}
.panel-head h2{
  font-size:18px;
  font-weight:600;
}
.panel-live{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--mint);
  border:1px solid rgba(34,224,180,.35);
  border-radius:999px;
  padding:3px 10px;
}
.panel-live .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 8px var(--mint);
  animation:pulse 2.4s infinite ease-in-out;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.82);}
}
.stat-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.stat-cell{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--card);
  padding:16px 14px;
  position:relative;
  overflow:hidden;
}
.stat-cell::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,#5B7CFA,#22E0B4);
  opacity:.75;
}
.stat-num{
  font-family:var(--num-font);
  font-size:36px;
  font-weight:800;
  line-height:1;
  color:var(--mint);
  letter-spacing:.01em;
}
.stat-num small{
  font-size:14px;
  font-weight:600;
  margin-left:3px;
  color:var(--text2);
}
.stat-label{
  display:block;
  font-size:13px;
  color:var(--text2);
  line-height:1.5;
  margin-top:8px;
}
.mini-progress-wrap{margin-top:22px;}
.mini-progress-head{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  font-size:13px;
  color:var(--text2);
  margin-bottom:8px;
}
.mini-progress-head strong{
  font-family:var(--num-font);
  font-size:18px;
  color:var(--amber);
  letter-spacing:.02em;
}
.track{
  position:relative;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  overflow:visible;
}
.track .fill{
  position:absolute;
  left:0;top:0;bottom:0;
  border-radius:999px;
  background:linear-gradient(135deg,#5B7CFA,#22E0B4);
  width:0;
  transition:width 1.1s var(--ease);
}
.track .fill::after{
  content:"";
  position:absolute;
  right:-4px;top:50%;
  transform:translateY(-50%);
  width:12px;height:12px;
  border-radius:50%;
  background:#fff;
  box-shadow:0 0 12px rgba(255,255,255,.85);
}
.panel-foot{
  margin-top:18px;
  font-size:13px;
  color:var(--text3);
  line-height:1.7;
}
.panel-btn{margin-top:18px;}

/* 批次卡 */
.batch-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--card);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.batch-card h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
}
.batch-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:14px;
  color:var(--text2);
}
.batch-row:last-child{border-bottom:none;padding-bottom:0;}
.batch-row b{
  font-family:var(--num-font);
  font-size:17px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.02em;
}

/* 横向信息条 */
.info-strip{
  padding:0 0 72px;
}
.strip-inner{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  overflow:hidden;
}
.strip-item{
  display:flex;
  gap:14px;
  padding:24px 26px;
  border-right:1px solid var(--line);
}
.strip-item:last-child{border-right:none;}
.strip-icon{
  flex-shrink:0;
  width:38px;height:38px;
  border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(34,224,180,.32);
  background:rgba(34,224,180,.08);
  color:var(--mint);
}
.strip-item h3{
  font-size:15px;
  font-weight:600;
  margin-bottom:4px;
}
.strip-item p{
  font-size:13px;
  line-height:1.7;
  color:var(--text2);
}

/* 数据说明板块 */
.explain-section{
  padding:0 0 80px;
}
.explain-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:40px;
  align-items:center;
}
.explain-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
}
.explain-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.explain-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(5,8,15,.85),transparent 55%);
}
.explain-media .media-cap{
  position:absolute;
  left:22px;right:22px;bottom:18px;
  z-index:1;
  font-size:14px;
  color:var(--text);
}
.explain-list{
  display:flex;
  flex-direction:column;
  gap:16px;
  margin-top:20px;
}
.explain-list li{
  display:flex;
  gap:12px;
  padding:16px 18px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--card);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.explain-list li:hover{
  border-color:rgba(34,224,180,.35);
  transform:translateY(-3px);
  box-shadow:var(--shadow-card-hover);
}
.explain-list .idx{
  font-family:var(--num-font);
  font-size:20px;
  font-weight:800;
  color:rgba(34,224,180,.55);
  line-height:1.3;
  flex-shrink:0;
}
.explain-list h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:4px;
}
.explain-list p{
  font-size:14px;
  color:var(--text2);
  line-height:1.7;
}

/* FAQ */
.faq-section{padding:0 0 80px;}
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:860px;
}
.faq-item{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--card);
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:rgba(34,224,180,.3);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  text-align:left;
  color:var(--text);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--mint);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid rgba(34,224,180,.4);
  color:var(--mint);
  font-size:14px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(34,224,180,.14);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px;
  border-top:1px solid var(--line);
  margin-top:0;
  padding-top:16px;
  font-size:15px;
  line-height:1.8;
  color:var(--text2);
}

/* CTA 通栏 */
.cta-section{padding:0 0 88px;}
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(34,224,180,.28);
  background:linear-gradient(135deg,rgba(34,224,180,.1),rgba(91,124,250,.1));
  padding:38px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:0 0 0 1px rgba(34,224,180,.06) inset;
}
.cta-banner::after{
  content:"";
  position:absolute;
  right:-70px;top:-90px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,180,.22),transparent 70%);
  filter:blur(70px);
  pointer-events:none;
}
.cta-banner h2{
  font-size:24px;
  font-weight:700;
  line-height:1.35;
  margin-bottom:6px;
}
.cta-banner p{
  font-size:14px;
  color:var(--text2);
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* 表单 */
.form-card{
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1/-1;}
.field label{font-size:14px;color:var(--text2);}
.field input,.field textarea{
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:15px;
  line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:112px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text3);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--mint);
  box-shadow:0 0 0 3px rgba(34,224,180,.15);
  background:rgba(255,255,255,.06);
}
.form-hint{font-size:13px;color:var(--text3);line-height:1.7;margin-top:12px;}
.form-msg{font-size:14px;color:var(--mint);margin-top:14px;min-height:22px;}

/* 页脚 */
.site-footer{
  position:relative;
  background:var(--bg);
  padding-top:0;
}
.site-footer::before{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.55),rgba(91,124,250,.4),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text2);
  max-width:30em;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text2);
  transition:color .18s var(--ease),transform .18s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--mint);transform:translateX(3px);}
.footer-note{
  font-size:13px;
  line-height:1.9;
  color:var(--text2);
}
.footer-note strong{color:var(--text);font-weight:600;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 32px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text3);
  flex-wrap:wrap;
}
.to-top{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  color:var(--text2);
  font-size:13px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.to-top:hover{color:var(--mint);border-color:rgba(34,224,180,.4);background:rgba(34,224,180,.08);}

/* 动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1200px){
  .nav-link{padding:0 11px;font-size:14px;}
}
@media (max-width:1024px){
  .container{padding-left:28px;padding-right:28px;}
  .header-inner{padding:0 28px;}
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .page-banner h1{font-size:36px;}
  .bulletin-grid{grid-template-columns:1fr;gap:32px;}
  .side-col{position:static;top:auto;}
  .strip-inner{grid-template-columns:1fr;}
  .strip-item{border-right:none;border-bottom:1px solid var(--line);}
  .strip-item:last-child{border-bottom:none;}
  .explain-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-banner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  .site-header{height:60px;}
  .header-inner{height:60px;padding:0 20px;}
  main{padding-top:60px;}
  .container{padding-left:20px;padding-right:20px;}
  .header-actions .btn-sm{display:none;}
  .page-banner{padding:34px 0 36px;}
  .page-banner h1{font-size:32px;}
  .banner-sub{font-size:15px;}
  .bulletin-section{padding:40px 0 56px;}
  .sec-title{font-size:24px;}
  .notice-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .notice-date{flex-direction:row;align-items:baseline;gap:8px;}
  .notice-date .d{font-size:20px;}
  .notice-body p{max-width:none;}
  .stat-grid{gap:12px;}
  .stat-num{font-size:32px;}
  .info-strip{padding-bottom:56px;}
  .explain-section{padding-bottom:56px;}
  .faq-section{padding-bottom:56px;}
  .cta-section{padding-bottom:64px;}
  .cta-banner{padding:28px 22px;}
  .cta-banner h2{font-size:20px;}
  .cta-actions .btn{width:100%;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
  .glass-panel,.form-card{padding:22px;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .page-banner h1{font-size:28px;}
  .sec-title{font-size:22px;padding-left:14px;}
  .sec-title::before{height:18px;top:5px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-actions{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category5 */
:root{
  --bg:#05080F;
  --bg-2:#0A101B;
  --card:#0E1726;
  --mint:#22E0B4;
  --violet:#5B7CFA;
  --amber:#FFC24B;
  --text:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.05);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-card-hover:0 16px 40px rgba(0,0,0,.45);
  --glow-mint:0 8px 28px rgba(34,224,180,.22);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
.page-body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-align:left;
  overflow-x:hidden;
}
.page-body.no-scroll{overflow:hidden}
.num{font-family:"Barlow Condensed","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.02em}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:40px;padding-right:40px}
@media (max-width:1024px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:640px){.container{padding-left:20px;padding-right:20px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-soft);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,180,.4),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border:1px solid rgba(34,224,180,.45);border-radius:10px;
  color:var(--mint);background:rgba(34,224,180,.08);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.brand:hover .brand-mark{box-shadow:0 0 18px rgba(34,224,180,.35);border-color:rgba(34,224,180,.75)}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:26px 2px;line-height:1;transition:color .18s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:1px;
  background:rgba(34,224,180,.55);
}
.nav-link.is-active{color:var(--mint)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 12px rgba(34,224,180,.85);
}
.nav-link.is-active::before{
  content:"";position:absolute;left:50%;bottom:29px;width:4px;height:4px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 10px rgba(34,224,180,.9);transform:translateX(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(34,224,180,.5);background:rgba(34,224,180,.08)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s var(--ease),opacity .18s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-cta{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--mint);color:#04120D;box-shadow:var(--glow-mint)}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--violet),var(--mint));
  color:#04120D;transform:translateY(-1px);
  box-shadow:0 14px 34px rgba(34,224,180,.3);
}
.btn-ghost{background:transparent;border-color:rgba(34,224,180,.55);color:var(--mint)}
.btn-ghost:hover{background:rgba(34,224,180,.12);transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.btn:disabled{opacity:.4;transform:none;cursor:not-allowed}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ 通用标题 ============ */
.section{padding:96px 0}
@media (max-width:1024px){.section{padding:64px 0}}
@media (max-width:640px){.section{padding:48px 0}}
.section-head{margin-bottom:40px}
.section-title{display:flex;align-items:center;gap:12px;font-size:36px;font-weight:700;line-height:1.25;color:var(--text)}
.section-title::before{
  content:"";width:4px;height:22px;border-radius:99px;background:var(--mint);
  box-shadow:0 0 12px rgba(34,224,180,.6);flex:0 0 auto;
}
.section-note{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px}
@media (max-width:1024px){.section-title{font-size:28px}}
@media (max-width:640px){.section-title{font-size:24px}}

.pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;border:1px solid rgba(34,224,180,.4);
  background:rgba(34,224,180,.08);color:var(--mint);
  font-size:13px;font-weight:600;line-height:1;
}
.pill-dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px var(--mint)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;padding-top:24px;padding-bottom:16px}
.breadcrumb a{color:var(--text-2);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--text)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--mint)}

/* ============ 帮助中心首屏 ============ */
.help-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:
    linear-gradient(135deg,rgba(91,124,250,.12),rgba(34,224,180,.07)),
    var(--bg-2);
  padding-bottom:56px;
}
.help-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:46px 46px;
  pointer-events:none;
}
.hero-glow{
  position:absolute;right:-80px;bottom:-140px;width:360px;height:360px;
  border-radius:50%;filter:blur(80px);
  background:rgba(91,124,250,.28);pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-title{font-size:44px;line-height:1.15;font-weight:800;letter-spacing:.01em;margin-top:18px}
.hero-title .kw{color:var(--mint)}
.hero-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:38em}
.search-bar{display:flex;gap:10px;max-width:600px;margin-top:28px}
.search-bar input{
  flex:1;height:52px;border-radius:999px;padding:0 22px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-bar input::placeholder{color:var(--text-3)}
.search-bar input:focus{
  outline:none;border-color:var(--mint);
  box-shadow:0 0 0 3px rgba(34,224,180,.15);
}
.quick-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px}
.quick-label{font-size:13px;color:var(--text-3)}
.tag-btn{
  height:28px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:13px;line-height:1;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.tag-btn:hover{color:var(--mint);border-color:rgba(34,224,180,.5);background:rgba(34,224,180,.1)}
.tag-btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
@media (max-width:1024px){
  .hero-title{font-size:36px}
  .help-hero{padding-bottom:40px}
}
@media (max-width:640px){
  .hero-title{font-size:30px}
  .search-bar{flex-direction:column}
  .search-bar .btn{width:100%}
}

/* ============ 主体两栏 ============ */
.help-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start}
.anchor-card{
  position:sticky;top:96px;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:20px;
}
.anchor-caption{font-size:13px;color:var(--text-3);margin-bottom:12px;letter-spacing:.04em}
.anchor-list{display:flex;flex-direction:column;gap:6px}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);
  border-left:2px solid transparent;
  font-size:15px;color:var(--text-2);
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.anchor-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.anchor-list a.is-active{
  color:var(--mint);background:rgba(34,224,180,.08);border-left-color:var(--mint);
}
.anchor-list .idx{font-size:13px;color:var(--text-3);min-width:18px}
.anchor-list a.is-active .idx{color:var(--mint)}
.anchor-list .count{margin-left:auto;font-size:12px;color:var(--text-3)}

.faq-group{margin-bottom:40px}
.faq-group:last-child{margin-bottom:0}
.group-title{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:600;color:var(--text);line-height:1.4}
.group-title::before{
  content:"";width:4px;height:20px;border-radius:99px;background:var(--mint);
  box-shadow:0 0 10px rgba(34,224,180,.55);flex:0 0 auto;
}
.group-note{margin:8px 0 18px;font-size:14px;color:var(--text-3)}

.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--card);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(34,224,180,.3)}
.faq-item.is-open{border-color:rgba(34,224,180,.45);box-shadow:0 10px 26px rgba(0,0,0,.35)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid var(--mint);outline-offset:-3px}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  display:grid;place-items:center;color:var(--mint);
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0;transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{
  padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:14px;margin:0 20px 18px;padding-left:0;padding-right:0;
}
.faq-item.is-open .faq-a{max-height:420px}

.empty-state{
  display:none;height:96px;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line);border-radius:var(--radius-md);
  color:var(--text-3);font-size:14px;text-align:center;
}
.empty-state.is-visible{display:flex}

@media (max-width:1024px){
  .help-layout{grid-template-columns:1fr;gap:28px}
  .anchor-card{position:static;padding:16px}
  .anchor-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .anchor-list a{
    white-space:nowrap;border-left:0;border:1px solid var(--line);
    border-radius:999px;padding:8px 14px;font-size:14px;
  }
  .anchor-list .count{display:none}
  .anchor-list a.is-active{border-color:rgba(34,224,180,.5)}
}

/* ============ 服务信息条 ============ */
.info-bar{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--bg-2);padding:26px 28px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
}
.info-cell{display:flex;align-items:flex-start;gap:12px;padding-right:24px}
.info-cell + .info-cell{padding-left:24px;border-left:1px solid var(--line);padding-right:24px}
.info-icon{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(34,224,180,.3);background:rgba(34,224,180,.08);color:var(--mint);
}
.info-title{font-size:15px;font-weight:600;color:var(--text)}
.info-text{margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.6}
@media (max-width:768px){
  .info-bar{grid-template-columns:1fr;padding:20px;gap:16px}
  .info-cell{padding:0}
  .info-cell + .info-cell{border-left:0;border-top:1px solid var(--line);padding:16px 0 0}
}

/* ============ 提交问题区 ============ */
.ask-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:40px;align-items:start}
.ask-copy h3{font-size:24px;font-weight:600;line-height:1.4}
.ask-copy p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:32em}
.ask-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.ask-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.ask-points li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:2px;margin-top:9px;
  background:var(--mint);box-shadow:0 0 8px rgba(34,224,180,.6);
}
.ask-figure{
  margin-top:28px;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--line);position:relative;
}
.ask-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ask-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,8,15,.85));
  pointer-events:none;
}
.ask-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:12px;z-index:2;
  font-size:13px;color:var(--text-2);
}

.form-card{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.field label .req{color:var(--mint)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input,.field select{height:48px;padding:0 14px}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px;background-repeat:no-repeat}
.field textarea{min-height:130px;padding:14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--mint);
  box-shadow:0 0 0 3px rgba(34,224,180,.15);
}
.field.is-error input,.field.is-error textarea,.field.is-error select{border-color:#FF5A7A}
.err-msg{display:none;margin-top:6px;font-size:13px;color:#FF5A7A}
.field.is-error .err-msg{display:block}
.form-hint{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.6}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(34,224,180,.4);background:rgba(34,224,180,.1);
  color:var(--mint);font-size:14px;
}
.form-success.is-visible{display:block}
@media (max-width:1024px){
  .ask-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:640px){
  .form-row{grid-template-columns:1fr;gap:0}
  .form-card{padding:22px}
}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 96px}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  border:1px solid rgba(34,224,180,.28);
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(91,124,250,.1),rgba(34,224,180,.1));
  padding:32px 36px;
  box-shadow:0 10px 40px rgba(91,124,250,.18);
  flex-wrap:wrap;
}
.cta-title{font-size:24px;font-weight:700;line-height:1.35}
.cta-text{margin-top:8px;font-size:14px;color:var(--text-2)}
@media (max-width:640px){
  .cta-band{padding-bottom:48px}
  .cta-inner{padding:24px}
  .cta-title{font-size:20px}
  .cta-inner .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(34,224,180,.55),transparent) 1;
  padding:64px 0 28px;
}
@supports not (border-image:linear-gradient(90deg,#000,#fff) 1){
  .site-footer{border-top:1px solid var(--line)}
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:26em}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--mint)}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.8}
.footer-note strong{color:var(--text-2);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-3);flex-wrap:wrap;
}
.to-top{color:var(--text-2);transition:color .18s var(--ease)}
.to-top:hover{color:var(--mint)}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .site-footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition:none !important}
}

/* ============ 移动端导航 ============ */
@media (max-width:768px){
  .header-inner{height:60px;gap:16px}
  .header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-menu{
    position:fixed;top:60px;left:0;right:0;bottom:0;z-index:75;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:24px 24px 120px;
    background:rgba(5,8,15,.98);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
    overflow-y:auto;
    counter-reset:navitem;
  }
  .nav-menu.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav-link{
    font-size:20px;line-height:56px;padding:0;color:var(--text);
    display:flex;align-items:center;gap:14px;
    border-bottom:1px solid var(--line-soft);
    counter-increment:navitem;
  }
  .nav-link::before{
    content:counter(navitem,decimal-leading-zero);
    font-family:"Barlow Condensed",sans-serif;font-size:14px;
    color:var(--text-3);min-width:22px;
  }
  .nav-link.is-active::before{color:var(--mint)}
  .nav-link:hover::after,.nav-link.is-active::after{display:none}
  .nav-link.is-active::before{
    left:auto;bottom:auto;transform:none;width:auto;height:auto;
    background:none;box-shadow:none;border-radius:0;position:static;
  }
  .drawer-cta{
    display:inline-flex;position:fixed;left:24px;right:24px;bottom:24px;
    width:auto;height:52px;
  }
}
@media (max-width:400px){
  .hero-title{font-size:26px}
  .search-bar input{height:48px}
}