/* roulang page: index */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --glass:rgba(255,255,255,0.04);
  --glass-strong:rgba(255,255,255,0.07);
  --line:rgba(255,255,255,0.09);
  --line-soft:rgba(255,255,255,0.08);
  --primary:#2BE0A8;
  --primary-dark:#17B78A;
  --primary-soft:rgba(43,224,168,0.10);
  --accent:#6C8CFF;
  --accent-soft:rgba(108,140,255,0.14);
  --warn:#FFC24B;
  --warn-soft:rgba(255,194,75,0.10);
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,0.45);
  --glow:0 0 0 1px rgba(43,224,168,0.20), 0 0 24px rgba(43,224,168,0.18);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --sec:120px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:var(--primary);text-decoration:none;transition:color .22s ease-out,opacity .22s ease-out}
a:hover{color:#5CF0C2}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0;position:relative}
.section-alt{background:var(--bg-3)}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{font-size:34px;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--primary),var(--primary-dark))}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--primary);background:var(--primary-soft);border:1px solid rgba(43,224,168,0.24);border-radius:999px;padding:4px 12px;margin-bottom:14px}
.mono{font-family:var(--mono)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 26px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#3BEFB6,#17B78A);color:#04231A;box-shadow:0 8px 24px rgba(43,224,168,0.28)}
.btn-primary:hover{color:#04231A;transform:translateY(-2px);box-shadow:0 12px 30px rgba(43,224,168,0.42)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{background:rgba(255,255,255,0.03);color:var(--text);border-color:var(--line)}
.btn-secondary:hover{color:var(--text);border-color:rgba(43,224,168,0.45);box-shadow:0 0 18px rgba(43,224,168,0.16);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--primary);padding:0 4px;height:auto}
.btn-ghost:hover{color:#5CF0C2}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:999px;font-size:12px;line-height:1;border:1px solid transparent}
.badge-blue{background:var(--accent-soft);color:#A9BAFF;border-color:rgba(108,140,255,0.28)}
.badge-green{background:var(--primary-soft);color:var(--primary);border-color:rgba(43,224,168,0.26)}
.badge-warn{background:var(--warn-soft);color:var(--warn);border-color:rgba(255,194,75,0.32)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(6,12,20,0.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:background .24s ease-out,border-color .24s ease-out}
.site-header.is-scrolled{background:rgba(6,12,20,0.94);border-bottom-color:rgba(43,224,168,0.28);box-shadow:0 8px 28px rgba(0,0,0,0.5)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;transition:height .24s ease-out}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(43,224,168,0.22),rgba(108,140,255,0.18));border:1px solid rgba(43,224,168,0.55);box-shadow:0 0 14px rgba(43,224,168,0.25);font-family:var(--mono);font-weight:700;font-size:14px;color:var(--primary);letter-spacing:-.5px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;color:var(--text)}
.brand-sub{font-size:11px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{position:relative;display:inline-block;padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:8px;transition:color .2s ease-out,background .2s ease-out}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,0.04)}
.nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:transparent;transition:background .2s ease-out}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{background:var(--primary)}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-status{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-2);background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:999px;height:28px;padding:0 12px}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);animation:pulse 2s ease-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,0.05);border:1px solid var(--line);color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.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}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:620px;display:flex;align-items:center;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;z-index:-3}
.hero-mask{position:absolute;inset:0;z-index:-2;background:linear-gradient(100deg,rgba(6,12,20,0.96) 0%,rgba(6,12,20,0.88) 42%,rgba(6,12,20,0.62) 100%)}
.hero-mask::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.045) 1px,transparent 1px);background-size:56px 56px;opacity:.5}
.hero-glow{position:absolute;z-index:-1;width:620px;height:620px;right:-140px;top:-90px;border-radius:50%;background:radial-gradient(circle,rgba(43,224,168,0.22) 0%,rgba(43,224,168,0) 68%);pointer-events:none}
.hero-inner{position:relative;padding:120px 0 96px;max-width:840px}
.hero h1{font-size:52px;line-height:1.24;margin:18px 0 0}
.hero-sub{margin-top:20px;font-size:18px;color:var(--text-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:30px}
.hero-count{margin-top:24px;display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:999px;padding:7px 16px}
.hero-count .mono{color:var(--warn);font-weight:700;font-size:15px;letter-spacing:.04em;animation:breathe 2s ease-in-out infinite}
@keyframes breathe{0%,100%{text-shadow:0 0 6px rgba(255,194,75,0.35)}50%{text-shadow:0 0 16px rgba(255,194,75,0.7)}}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:44px}
.stat{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.stat-num{font-family:var(--mono);font-size:24px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-label{font-size:12.5px;color:var(--text-3);margin-top:6px}

/* ---------- 信任条 ---------- */
.trust{margin-top:-38px;position:relative;z-index:5}
.trust-bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;background:rgba(10,19,32,0.86);border:1px solid var(--line);border-radius:var(--radius);padding:16px 24px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow)}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2)}
.trust-item i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(43,224,168,0.7);display:inline-block}

/* ---------- 权益对比 ---------- */
.compare-wrap{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-grid{min-width:820px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr}
.cg-cell{padding:16px 20px;border-bottom:1px solid var(--line-soft);font-size:14.5px;color:var(--text-2);display:flex;align-items:center;min-height:56px}
.cg-head{background:rgba(255,255,255,0.055);flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;padding-top:20px;padding-bottom:20px;min-height:112px}
.cg-head .plan-name{font-size:17px;font-weight:700;color:var(--text)}
.cg-head .plan-price{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text)}
.cg-head .plan-price small{font-family:var(--font);font-size:12px;color:var(--text-3);font-weight:400;margin-left:2px}
.cg-head .plan-note{font-size:12px;color:var(--text-3)}
.cg-group{grid-column:1 / -1;background:rgba(43,224,168,0.06);color:var(--primary);font-size:13px;font-weight:600;padding:10px 20px;letter-spacing:.04em}
.cg-feature{color:var(--text)}
.cg-col-recommend{background:rgba(255,194,75,0.055);border-left:1px solid rgba(255,194,75,0.28);border-right:1px solid rgba(255,194,75,0.28)}
.cg-col-recommend.cg-head{position:relative}
.cg-col-recommend.cg-head::before{content:"推荐";position:absolute;top:0;left:50%;transform:translateX(-50%);background:var(--warn);color:#2A1B00;font-size:11px;font-weight:700;padding:2px 12px;border-radius:0 0 8px 8px;letter-spacing:.06em}
.cg-yes{color:var(--primary);font-weight:600}
.cg-no{color:var(--text-3)}
.compare-actions{padding:22px 20px 26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;border-top:1px solid var(--line-soft);background:rgba(255,255,255,0.02)}
.compare-actions p{font-size:13px;color:var(--text-3)}

/* ---------- 等级卡 ---------- */
.grid-x{display:flex;flex-wrap:wrap;width:100%}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.cell{flex:0 0 auto;min-width:0;width:100%}
.level-card{position:relative;height:100%;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 22px;overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.level-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--primary-dark));transition:box-shadow .22s ease-out}
.level-card.lv2::before{background:linear-gradient(90deg,#2BE0A8,#6C8CFF)}
.level-card.lv3::before{background:linear-gradient(90deg,#6C8CFF,#9AAEC0)}
.level-card.lv4::before{background:linear-gradient(90deg,#FFC24B,#6C8CFF)}
.level-card:hover{transform:translateY(-2px);border-color:rgba(43,224,168,0.28);box-shadow:var(--glow)}
.level-card:hover::before{box-shadow:0 0 18px rgba(43,224,168,0.6)}
.level-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.level-icon{width:40px;height:40px;border-radius:12px;background:var(--primary-soft);border:1px solid rgba(43,224,168,0.24);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.level-name{font-size:19px;font-weight:700}
.level-card ul{margin-top:6px;display:flex;flex-direction:column;gap:10px}
.level-card li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.75}
.level-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(43,224,168,0.6)}
.level-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);font-size:12.5px;color:var(--text-3)}

/* ---------- 专属内容卡 ---------- */
.content-card{display:block;height:100%;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;color:inherit}
.content-card:hover{transform:translateY(-2px);border-color:rgba(43,224,168,0.28);box-shadow:var(--glow);color:inherit}
.cc-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.cc-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease-out}
.content-card:hover .cc-media img{transform:scale(1.04)}
.cc-lock{position:absolute;inset:0;background:rgba(6,12,20,0.55);display:flex;align-items:center;justify-content:center;color:var(--warn)}
.cc-body{padding:18px 18px 20px}
.cc-title{font-size:16.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:49px}
.cc-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:12px;color:var(--text-3)}
.cc-hover{color:var(--primary);font-size:12.5px;opacity:0;transition:opacity .22s ease-out}
.content-card:hover .cc-hover{opacity:1}

/* ---------- 资讯列表 ---------- */
.news-list{border-top:1px solid var(--line-soft)}
.news-item{display:flex;gap:24px;padding:24px 0;border-bottom:1px solid var(--line-soft);align-items:flex-start}
.news-thumb{flex:0 0 200px;width:200px;height:130px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line)}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out}
.news-item:hover .news-thumb img{transform:scale(1.05)}
.news-body{flex:1 1 auto;min-width:0}
.news-title{font-size:18px;font-weight:600;line-height:1.55}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--primary)}
.news-summary{margin-top:8px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:12.5px;color:var(--text-3)}
.empty-state{padding:56px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius);background:rgba(255,255,255,0.02)}
.empty-state svg{color:var(--text-3);margin-bottom:14px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;padding:18px 4px;background:transparent;border:0;color:var(--text);font-size:16px;font-weight:600;text-align:left;cursor:pointer;transition:color .2s ease-out}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;position:relative;transition:transform .24s ease-out,border-color .24s ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:opacity .24s ease-out,transform .24s ease-out}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(43,224,168,0.5)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{max-width:720px;padding:0 4px 22px;font-size:14.5px;color:var(--text-2);line-height:1.9}

/* ---------- CTA 大区块 ---------- */
.cta-block{position:relative;background:linear-gradient(135deg,rgba(43,224,168,0.10),rgba(108,140,255,0.07));border:1px solid var(--line);border-radius:24px;padding:56px 48px;overflow:hidden;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow);text-align:center}
.cta-block::after{content:"";position:absolute;width:520px;height:520px;right:-160px;bottom:-220px;border-radius:50%;background:radial-gradient(circle,rgba(43,224,168,0.20) 0%,rgba(43,224,168,0) 70%);pointer-events:none}
.cta-block h2{font-size:32px;position:relative}
.cta-block p{margin-top:16px;color:var(--text-2);font-size:16px;max-width:660px;margin-left:auto;margin-right:auto}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:16px;justify-content:center;position:relative}
.cta-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:center;position:relative}
.cta-tag{font-size:12.5px;color:var(--text-2);background:rgba(255,255,255,0.05);border:1px solid var(--line);border-radius:999px;padding:6px 14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-3);max-width:320px;line-height:1.9}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:var(--text-3)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:80;pointer-events:none;opacity:0;transition:opacity .24s ease-out}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,12,0.7);backdrop-filter:blur(4px)}
.drawer-panel{position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--bg-2);border-left:1px solid var(--line);padding:24px;display:flex;flex-direction:column;gap:6px;transform:translateX(100%);transition:transform .26s ease-out;overflow-y:auto}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-panel a{padding:13px 12px;border-radius:10px;color:var(--text-2);font-size:15px}
.drawer-panel a:hover,.drawer-panel a.is-active{background:rgba(255,255,255,0.05);color:var(--text)}
.drawer-panel .btn{margin-top:18px}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,0.05);border:1px solid var(--line);color:var(--text);cursor:pointer}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
}
@media (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-6{width:50%}
  .large-8{width:66.6667%}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .nav-links{display:none}
  .nav-status{display:none}
  .nav-toggle{display:flex}
  .hero h1{font-size:38px}
  .section-head h2{font-size:29px}
  .compare-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 16px}
  .hero{min-height:460px}
  .hero-inner{padding:76px 0 64px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head h2{font-size:25px}
  .news-item{flex-direction:column;gap:14px}
  .news-thumb{width:100%;flex:0 0 auto;height:170px}
  .cta-block{padding:38px 22px}
  .cta-block h2{font-size:24px}
  .compare-actions{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .trust-bar{padding:14px 18px;justify-content:flex-start;gap:14px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .hero-count{font-size:12px;padding:7px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn:hover,.content-card:hover,.level-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --glass:rgba(255,255,255,.04);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.08);
  --primary:#2BE0A8;
  --primary-deep:#17B78A;
  --primary-soft:rgba(43,224,168,.10);
  --accent:#6C8CFF;
  --amber:#FFC24B;
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(43,224,168,.18);
  --container:1200px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:12px;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:var(--text);}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:.01em;color:var(--text);line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(43,224,168,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-3);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#3AEFB8 0%,var(--primary) 45%,var(--primary-deep) 100%);
  color:#04140E;
  box-shadow:0 6px 20px rgba(43,224,168,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(43,224,168,.4);color:#04140E;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--glass);color:var(--text);border-color:var(--line);
  backdrop-filter:blur(18px);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(43,224,168,.4);color:var(--text);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;line-height:1;letter-spacing:.04em;
}
.badge-blue{background:rgba(108,140,255,.14);color:#A9BCFF;border:1px solid rgba(108,140,255,.3);}
.badge-green{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(43,224,168,.32);}
.badge-amber{background:rgba(255,194,75,.12);color:var(--amber);border:1px solid rgba(255,194,75,.32);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,12,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-soft);
  transition:background .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(5,10,17,.94);
  box-shadow:0 1px 0 rgba(43,224,168,.22),0 10px 28px rgba(0,0,0,.5);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:16px;font-weight:700;letter-spacing:-.02em;
  color:var(--primary);
  background:linear-gradient(150deg,rgba(43,224,168,.16),rgba(108,140,255,.08));
  border:1px solid rgba(43,224,168,.42);
  box-shadow:0 0 16px rgba(43,224,168,.22) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.08em;}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:12px;flex:1;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 2px;
  transition:color .2s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,168,0));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);
  padding:6px 12px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid var(--line);
}
.dot-live{
  width:7px;height:7px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 8px rgba(43,224,168,.9);animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .2s ease-out;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 面包屑 ---------- */
.crumbs{background:var(--bg-3);border-bottom:1px solid var(--line-soft);}
.crumbs ol{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:16px 0;font-size:14px;color:var(--text-3);}
.crumbs li{display:inline-flex;align-items:center;gap:10px;min-width:0;}
.crumbs li+li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .current{
  color:var(--primary);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:
    radial-gradient(900px 320px at 12% 0%,rgba(43,224,168,.14),transparent 62%),
    radial-gradient(700px 300px at 88% 10%,rgba(108,140,255,.12),transparent 60%),
    linear-gradient(180deg,var(--bg-2),var(--bg));
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(600px 300px at 20% 20%,#000 0%,transparent 80%);
  -webkit-mask-image:radial-gradient(600px 300px at 20% 20%,#000 0%,transparent 80%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:56px;}
.article-head{max-width:880px;}
.article-head h1{
  font-size:clamp(30px,4vw,48px);line-height:1.32;letter-spacing:.01em;
  margin:18px 0 20px;
}
.article-lead{
  font-size:17px;color:var(--text-2);line-height:1.9;max-width:760px;
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:26px;font-size:14px;color:var(--text-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-row .meta-item strong{color:var(--text-2);font-weight:500;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;}

/* ---------- 文章主体布局 ---------- */
.article-main{padding:64px 0 88px;background:var(--bg);}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start;}
.article-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px 44px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.article-body{max-width:840px;font-size:16.5px;line-height:1.95;color:#D8E5F0;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 22px;}
.article-body h2{
  font-size:clamp(24px,2.4vw,30px);margin:44px 0 18px;padding-left:14px;
  border-left:3px solid var(--primary);line-height:1.45;
}
.article-body h3{font-size:21px;margin:34px 0 14px;color:var(--text);}
.article-body h4{font-size:18px;margin:26px 0 12px;color:var(--text-2);}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:22px;}
.article-body ul li{position:relative;padding-left:16px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.82em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(43,224,168,.6);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:10px;padding-left:6px;}
.article-body ol li::marker{color:var(--primary);font-family:var(--mono);}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(43,224,168,.36);}
.article-body a:hover{color:#7BF3CE;border-bottom-color:rgba(43,224,168,.7);}
.article-body strong{color:#fff;font-weight:600;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:var(--primary-soft);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:26px 0;border-radius:12px;border:1px solid var(--line);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body code{
  font-family:var(--mono);font-size:14px;color:var(--amber);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  margin:24px 0;padding:18px 20px;overflow-x:auto;
  background:#050A11;border:1px solid var(--line);border-radius:12px;
}
.article-body pre code{background:none;border:none;padding:0;color:#C9D8E6;font-size:14px;line-height:1.8;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600;}
.article-body td{color:var(--text-2);}
.article-body hr{border:none;border-top:1px solid var(--line-soft);margin:34px 0;}

/* ---------- 空状态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--glass);
}
.empty-mark{
  width:56px;height:56px;margin:0 auto 20px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:24px;color:var(--amber);
  background:rgba(255,194,75,.1);border:1px solid rgba(255,194,75,.3);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--text-2);margin-bottom:26px;}

/* ---------- 文末标签与继续浏览 ---------- */
.article-foot{margin-top:44px;border-top:1px solid var(--line-soft);padding-top:28px;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px;}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.tag:hover{border-color:rgba(43,224,168,.45);color:var(--primary);transform:translateY(-2px);}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.post-nav-item{
  display:block;padding:18px 20px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-nav-item:hover{transform:translateY(-2px);border-color:rgba(43,224,168,.45);box-shadow:var(--glow);color:var(--text);}
.pn-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:6px;}
.pn-title{display:block;font-size:15px;font-weight:600;color:var(--text);}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:16px;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(43,224,168,.7);}
.side-card p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:18px;}
.side-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.side-list li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-3);}
.side-list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);margin-top:8px;flex:0 0 5px;opacity:.8;}
.toc-list{display:flex;flex-direction:column;gap:8px;}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);padding-left:14px;position:relative;line-height:1.7;
}
.toc-list a::before{
  content:"";position:absolute;left:0;top:.75em;width:6px;height:1px;background:var(--text-3);
}
.toc-list a:hover{color:var(--primary);}

/* ---------- 相关推荐 ---------- */
.related{padding:80px 0;background:var(--bg-3);border-top:1px solid var(--line-soft);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(22px,2.4vw,28px);position:relative;padding-left:14px;}
.sec-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:22px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(43,224,168,.7);}
.sec-head p{font-size:14px;color:var(--text-3);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);color:var(--text);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(43,224,168,.4);box-shadow:var(--shadow-card),var(--glow);color:var(--text);}
.rel-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.rel-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,12,20,.1),rgba(6,12,20,.72));}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.6;}
.rel-body p{font-size:13.5px;color:var(--text-2);line-height:1.8;}
.rel-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3);}
.rel-more{color:var(--primary);font-size:13px;font-weight:600;}

/* ---------- 返回入口 ---------- */
.back-band{padding:0 0 96px;background:var(--bg-3);}
.back-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:30px 32px;border-radius:var(--radius-card);
  background:linear-gradient(120deg,rgba(43,224,168,.09),rgba(108,140,255,.07));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.back-inner h2{font-size:20px;margin-bottom:6px;}
.back-inner p{font-size:14px;color:var(--text-2);}
.back-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:360px;}
.footer-col h3{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .article-grid{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
  .article-panel{padding:32px 30px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;margin:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 24px 22px;
    background:rgba(5,10,17,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(0,0,0,.55);
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .2s ease-out,transform .2s ease-out;
  }
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line-soft);font-size:16px;}
  .nav-links a::after{display:none;}
  .site-header.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto;}
  .nav-toggle{display:inline-flex;}
  .nav-status{display:none;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-side .side-card{flex:1 1 300px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .article-hero .container{padding-top:40px;padding-bottom:36px;}
  .article-main{padding:40px 0 64px;}
  .article-panel{padding:24px 18px;border-radius:14px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:23px;margin:34px 0 14px;}
  .article-body h3{font-size:19px;}
  .post-nav{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .nav-right .btn-sm{display:none;}
  .site-header.nav-open .nav-right .btn-sm{display:inline-flex;}
  .related{padding:56px 0;}
  .back-band{padding-bottom:64px;}
  .back-inner{padding:24px 20px;}
  .back-actions{width:100%;}
  .back-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .crumbs .current{max-width:24ch;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --primary:#2BE0A8;
  --primary-dark:#17B78A;
  --primary-dim:rgba(43,224,168,0.10);
  --accent:#6C8CFF;
  --amber:#FFC24B;
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --line:rgba(255,255,255,0.08);
  --glass:rgba(255,255,255,0.04);
  --glass-2:rgba(255,255,255,0.07);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,0.45);
  --glow:0 0 24px rgba(43,224,168,0.18);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(680px 420px at 78% -6%, rgba(43,224,168,0.10), transparent 62%),
    radial-gradient(560px 360px at 6% 12%, rgba(108,140,255,0.09), transparent 60%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:#7CF0C8;}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.35;letter-spacing:0.005em;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04140E;
  box-shadow:0 8px 22px rgba(23,183,138,0.28),0 0 0 1px rgba(43,224,168,0.28) inset;
}
.btn-primary:hover{
  color:#03110C;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(23,183,138,0.38),0 0 24px rgba(43,224,168,0.30);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--glass);
  color:var(--text);
  border-color:rgba(255,255,255,0.14);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{
  color:#fff;
  border-color:rgba(43,224,168,0.5);
  transform:translateY(-2px);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:48px;padding:0 32px;font-size:16px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,12,20,0.72);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .24s ease-out,border-color .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(5,10,17,0.92);
  border-bottom-color:rgba(43,224,168,0.28);
  box-shadow:0 1px 0 rgba(43,224,168,0.20),0 10px 30px rgba(0,0,0,0.45);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
  transition:height .24s ease-out;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);
  font-size:17px;font-weight:700;letter-spacing:-0.5px;
  color:var(--primary);
  border-radius:12px;
  background:linear-gradient(150deg,rgba(43,224,168,0.16),rgba(108,140,255,0.10));
  border:1px solid rgba(43,224,168,0.42);
  box-shadow:0 0 16px rgba(43,224,168,0.18) inset,0 0 14px rgba(43,224,168,0.14);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:0.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:0.06em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1;}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,0.05);}
.nav-links a.is-active{color:var(--primary);background:rgba(43,224,168,0.08);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,168,0));border-radius:2px;
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--text-2);
  padding:5px 12px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
}
.dot-live{
  width:7px;height:7px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 3px rgba(43,224,168,0.16);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.45;}}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);border-radius:2px;
  transform:translateX(-50%);transition:transform .22s ease-out,opacity .22s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

/* ---------- 分类页首屏 ---------- */
.hero-cat{
  position:relative;
  padding:88px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.32;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,12,20,0.62) 0%,rgba(6,12,20,0.92) 68%,var(--bg) 100%),
    linear-gradient(90deg,rgba(6,12,20,0.92) 0%,rgba(6,12,20,0.45) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(600px 380px at 30% 40%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(600px 380px at 30% 40%,#000 20%,transparent 78%);
}
.hero-inner{position:relative;max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;margin-bottom:22px;
  font-size:12px;letter-spacing:0.08em;
  color:var(--primary);
  background:rgba(43,224,168,0.10);
  border:1px solid rgba(43,224,168,0.32);
  border-radius:999px;
}
.hero-cat h1{
  font-size:48px;
  font-weight:700;
  line-height:1.22;
  margin-bottom:18px;
  letter-spacing:-0.01em;
}
.hero-cat h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),#8FF3D2);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px;}
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.stat{
  background:rgba(10,19,32,0.72);
  padding:18px 20px;
}
.stat b{
  display:block;
  font-family:var(--mono);
  font-size:24px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:-0.02em;
  margin-bottom:4px;
}
.stat span{font-size:12.5px;color:var(--text-3);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0;border-bottom:1px solid var(--line);background:var(--bg-3);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-style:normal;color:var(--text-3);}
.crumb .current{color:var(--primary);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section.alt{background:var(--bg-3);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:32px;
  padding-left:16px;
  position:relative;
  margin-bottom:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(43,224,168,0.15));
  box-shadow:0 0 14px rgba(43,224,168,0.4);
}
.section-head p{color:var(--text-2);font-size:16px;}

/* ---------- 说明段 ---------- */
.intro-block{
  display:grid;
  grid-template-columns:120px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.intro-mark{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:0.2em;
  color:var(--text-3);
  padding-top:8px;
  border-top:1px solid rgba(43,224,168,0.4);
}
.intro-text{max-width:860px;font-size:17px;color:var(--text-2);line-height:1.95;}
.intro-text strong{color:var(--text);font-weight:600;}

/* ---------- 双列图文块 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:88px;}
.split.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-2);
}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:0;
  transition:transform .5s ease-out;
}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,20,0.05) 40%,rgba(6,12,20,0.72) 100%);
  pointer-events:none;
}
.split-media:hover img{transform:scale(1.03);}
.split-media .media-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(43,224,168,0.16);
  border:1px solid rgba(43,224,168,0.42);
  color:var(--primary);
  backdrop-filter:blur(8px);
}
.split-media .media-badge.blue{background:rgba(108,140,255,0.16);border-color:rgba(108,140,255,0.42);color:#A9BAFF;}
.split-media .media-badge.amber{background:rgba(255,194,75,0.16);border-color:rgba(255,194,75,0.42);color:var(--amber);}
.split-body h3{
  font-size:22px;
  margin-bottom:14px;
}
.split-body .lead{
  font-size:16px;
  color:var(--primary);
  font-weight:600;
  margin-bottom:14px;
}
.split-body p{color:var(--text-2);font-size:15.5px;}
.point-list{margin-top:20px;display:grid;gap:10px;}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(43,224,168,0.7);
}
.point-list li b{color:var(--text);font-weight:600;}

/* ---------- 指标网格 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.spec-card{
  position:relative;
  padding:28px 26px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.spec-card:hover{
  transform:translateY(-2px);
  border-color:rgba(43,224,168,0.28);
  box-shadow:var(--shadow),var(--glow);
}
.spec-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  border-radius:var(--radius) var(--radius) 0 0;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,168,0));
}
.spec-card.blue::before{background:linear-gradient(90deg,var(--accent),rgba(108,140,255,0));}
.spec-card.amber::before{background:linear-gradient(90deg,var(--amber),rgba(255,194,75,0));}
.spec-card h3{font-size:19px;margin-bottom:6px;}
.spec-card .price{
  font-family:var(--mono);
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.spec-card .price b{color:var(--amber);font-size:16px;margin-right:2px;}
.spec-rows{display:grid;gap:12px;}
.spec-rows div{
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  padding-bottom:11px;
  border-bottom:1px solid var(--line);
}
.spec-rows div:last-child{border-bottom:0;padding-bottom:0;}
.spec-rows span{color:var(--text-3);flex-shrink:0;}
.spec-rows b{color:var(--text);font-weight:600;text-align:right;font-family:var(--mono);font-size:13.5px;}
.tag-recommend{
  position:absolute;top:-11px;right:20px;
  height:24px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  color:#1A1204;
  background:linear-gradient(135deg,var(--amber),#FFD87E);
  box-shadow:0 6px 18px rgba(255,194,75,0.28);
}

/* ---------- 核对顺序（无卡片外框） ---------- */
.fit-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}
.fit-item{border-top:1px solid rgba(43,224,168,0.35);padding-top:18px;}
.fit-item b{
  display:block;
  font-family:var(--mono);
  font-size:13px;
  color:var(--primary);
  letter-spacing:0.14em;
  margin-bottom:10px;
}
.fit-item h3{font-size:17px;margin-bottom:8px;}
.fit-item p{font-size:14.5px;color:var(--text-2);margin:0;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:18px 4px;
  background:none;
  border:0;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--primary);}
.faq-q .mark{
  flex:0 0 26px;
  width:26px;height:26px;
  position:relative;
  border-radius:50%;
  border:1px solid rgba(43,224,168,0.35);
  background:rgba(43,224,168,0.08);
  transition:transform .24s ease-out,background .24s ease-out;
}
.faq-q .mark::before,
.faq-q .mark::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .mark::before{width:11px;height:1.6px;}
.faq-q .mark::after{width:1.6px;height:11px;transition:opacity .24s ease-out;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-q .mark{transform:rotate(180deg);background:rgba(43,224,168,0.16);}
.faq-item.is-open .faq-q .mark::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease-out;
}
.faq-a p{
  max-width:720px;
  padding:0 4px 22px;
  color:var(--text-2);
  font-size:15px;
  margin:0;
}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 100px;}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  padding:56px 48px;
  background:linear-gradient(135deg,rgba(43,224,168,0.10),rgba(108,140,255,0.07));
  border:1px solid rgba(43,224,168,0.26);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,168,0.22),transparent 68%);
  pointer-events:none;
}
.cta-card h2{font-size:30px;margin-bottom:14px;}
.cta-card p{color:var(--text-2);font-size:15.5px;max-width:560px;}
.cta-side{display:flex;flex-direction:column;gap:16px;align-items:flex-start;}
.cta-side .btn{width:100%;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 13px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
}
.pill i{font-style:normal;color:var(--primary);font-size:11px;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-3);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--text-2);font-size:14px;max-width:340px;line-height:1.85;}
.footer-col h3{
  font-size:14px;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:0.04em;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:0;
    padding:14px 24px 20px;
    background:rgba(6,12,20,0.98);
    border-bottom:1px solid rgba(43,224,168,0.22);
    backdrop-filter:blur(18px);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-links a{height:46px;padding:0 12px;font-size:15px;}
  .nav-links a.is-active{background:rgba(43,224,168,0.10);}
  .nav-links a.is-active::after{left:12px;right:12px;}
  .nav-toggle{display:block;}
  .nav-status{display:none;}
  .nav-right .btn-primary{display:none;}
  .hero-cat h1{font-size:38px;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:minmax(0,1fr);gap:30px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:64px;}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fit-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-card{grid-template-columns:minmax(0,1fr);padding:44px 32px;}
  .section{padding:72px 0;}
  .hero-cat{padding:64px 0 56px;}
  .intro-block{grid-template-columns:minmax(0,1fr);gap:16px;}
  .intro-mark{border-top:0;padding-top:0;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  body{font-size:15.5px;line-height:1.9;}
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .hero-cat h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .spec-grid{grid-template-columns:minmax(0,1fr);}
  .fit-grid{grid-template-columns:minmax(0,1fr);gap:22px;}
  .split-media img{aspect-ratio:16/10;}
  .split-body h3{font-size:20px;}
  .faq-q{font-size:15.5px;min-height:58px;}
  .cta-card{padding:34px 22px;}
  .cta-card h2{font-size:23px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .crumb{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
  .split-media:hover img{transform:none;}
  .spec-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --glass:rgba(255,255,255,.04);
  --glass-line:rgba(255,255,255,.09);
  --primary:#2BE0A8;
  --primary-deep:#17B78A;
  --primary-soft:rgba(43,224,168,.10);
  --signal:#6C8CFF;
  --amber:#FFC24B;
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --line:rgba(255,255,255,.08);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(43,224,168,.18);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --gap-s:16px;
  --gap-m:24px;
  --gap-l:32px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:#5CF0C0;}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-2);}
.section-deep{background:var(--bg-3);}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,12,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,12,20,.94);
  border-bottom-color:rgba(43,224,168,.28);
  box-shadow:0 8px 30px rgba(0,0,0,.5);
}
.nav-wrap{display:flex;align-items:center;gap:var(--gap-m);height:68px;transition:height .22s ease-out;}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:-.5px;
  color:#04231A;background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 0 1px rgba(43,224,168,.55),0 0 18px rgba(43,224,168,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:700;color:var(--text);}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transform:scaleX(.4);transition:opacity .2s ease-out,transform .2s ease-out;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{opacity:.45;transform:scaleX(1);}
.nav-links a.is-active{color:var(--text);font-weight:600;}
.nav-links a.is-active::after{opacity:1;transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-status{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-2);
  padding:5px 12px;border-radius:999px;background:var(--glass);border:1px solid var(--glass-line);
}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(43,224,168,.9);animation:breathe 2s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1;}50%{opacity:.35;}}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-line);
  background:var(--glass);position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--text);border-radius:2px;transform:translate(-50%,-50%);
}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  color:#04231A;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 6px 22px rgba(43,224,168,.28),0 0 0 1px rgba(43,224,168,.4) inset;
}
.btn-primary:hover{color:#04231A;transform:translateY(-2px);box-shadow:0 10px 30px rgba(43,224,168,.42),0 0 22px rgba(43,224,168,.32);}
.btn-ghost{
  color:var(--text);background:var(--glass);border-color:var(--glass-line);
}
.btn-ghost:hover{color:var(--text);border-color:rgba(43,224,168,.5);box-shadow:var(--shadow-glow);transform:translateY(-2px);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:600;font-size:15px;
}
.btn-link:hover{gap:12px;}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-lg{height:48px;padding:0 32px;font-size:16px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.3px;line-height:1;
}
.badge-primary{color:var(--primary);background:var(--primary-soft);border:1px solid rgba(43,224,168,.32);}
.badge-signal{color:#B6C4FF;background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.3);}
.badge-amber{color:var(--amber);background:rgba(255,194,75,.1);border:1px solid rgba(255,194,75,.32);}
.badge-plain{color:var(--text-2);background:var(--glass);border:1px solid var(--glass-line);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;padding:168px 0 72px;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 8%,rgba(43,224,168,.16),transparent 62%),
    radial-gradient(700px 380px at 88% 90%,rgba(108,140,255,.13),transparent 66%),
    linear-gradient(180deg,rgba(6,12,20,.86),rgba(6,12,20,.96));
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:820px;}
.hero-eyebrow{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.28;letter-spacing:-.5px;margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:17px;color:var(--text-2);max-width:680px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;}
.hero-meta-item{display:flex;flex-direction:column;gap:2px;}
.hero-meta-num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--primary);line-height:1.2;}
.hero-meta-label{font-size:13px;color:var(--text-3);}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--bg-3);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--text-2);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);opacity:.7;}
.crumb .current{color:var(--primary);font-weight:600;}

/* ---------- generic blocks ---------- */
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head h2{
  position:relative;font-size:clamp(24px,3vw,34px);padding-left:16px;margin-bottom:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.sec-head p{color:var(--text-2);font-size:16px;}
.intro-text{max-width:880px;color:var(--text-2);}
.intro-text p+p{margin-top:16px;}

/* ---------- timeline ---------- */
.timeline{margin-top:8px;}
.tl-item{position:relative;display:grid;grid-template-columns:88px minmax(0,1fr);padding-bottom:44px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:43px;top:64px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(43,224,168,.45),rgba(43,224,168,.05));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  width:56px;height:56px;margin-left:15px;border-radius:16px;display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--primary);
  background:rgba(43,224,168,.08);border:1px solid rgba(43,224,168,.3);
  box-shadow:0 0 0 6px rgba(43,224,168,.04);
}
.tl-body{padding-top:4px;}
.tl-body h3{font-size:21px;margin-bottom:10px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tl-body p{color:var(--text-2);max-width:760px;}
.tl-points{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;}
.tl-points li{
  font-size:13px;color:var(--text-2);padding:6px 12px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-line);
}
.tl-figure{margin-top:20px;max-width:720px;position:relative;border-radius:var(--r-img);overflow:hidden;}
.tl-figure img{width:100%;height:270px;object-fit:cover;}
.tl-figure::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);
  background:linear-gradient(180deg,rgba(6,12,20,.05),rgba(6,12,20,.5));
  border:1px solid var(--line);
}
.tl-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:14px 18px;font-size:13px;color:#CFDCE8;
}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap-m);
  padding:32px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow-card);
}
.stat{padding-left:18px;border-left:2px solid rgba(43,224,168,.35);}
.stat-num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;}
.stat-name{font-size:14px;color:var(--text);margin-top:4px;}
.stat-note{font-size:12px;color:var(--text-3);}

/* ---------- split (growth sources) ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-card);}
.split-media img{width:100%;height:380px;object-fit:cover;}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,12,20,.1),rgba(6,12,20,.55));}
.rule-list li{
  display:grid;grid-template-columns:26px minmax(0,1fr);gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
}
.rule-list li:last-child{border-bottom:0;}
.rule-mark{
  width:22px;height:22px;border-radius:50%;margin-top:9px;
  background:var(--primary-soft);border:1px solid rgba(43,224,168,.4);
  position:relative;
}
.rule-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:7px;height:7px;border-radius:50%;
  background:var(--primary);transform:translate(-50%,-50%);
}
.rule-list strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
.rule-list span{font-size:14px;color:var(--text-2);}

/* ---------- faq ---------- */
.faq{margin-top:8px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:18px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--primary);}
.faq-ico{
  position:relative;flex-shrink:0;width:24px;height:24px;border-radius:8px;
  border:1px solid var(--glass-line);background:var(--glass);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:11px;height:2px;}
.faq-ico::after{width:2px;height:11px;transition:transform .2s ease-out,opacity .2s ease-out;}
.faq-item.is-open .faq-ico{border-color:rgba(43,224,168,.5);}
.faq-item.is-open .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{max-width:720px;padding:0 0 22px;color:var(--text-2);font-size:15px;}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:24px;
  padding:64px 56px;background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 85% 10%,rgba(43,224,168,.16),transparent 65%),
             radial-gradient(420px 220px at 5% 100%,rgba(108,140,255,.14),transparent 70%);
}
.cta-inner{position:relative;z-index:2;max-width:700px;}
.cta-panel h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px;}
.cta-panel p{color:var(--text-2);margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-3);border-top:1px solid var(--line);padding:72px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-2);max-width:340px;}
.footer-col h3{font-size:15px;margin-bottom:18px;letter-spacing:.3px;}
.footer-col li+li{margin-top:12px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-status{display:none;}
  .site-header.drawer-open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    position:absolute;left:0;right:0;top:100%;
    padding:16px 24px 24px;background:rgba(6,12,20,.98);
    border-bottom:1px solid rgba(43,224,168,.25);
  }
  .site-header.drawer-open .nav-links a{width:100%;padding:12px 0;font-size:15px;border-bottom:1px solid var(--line);}
  .site-header.drawer-open .nav-links a::after{display:none;}
  .drawer-cta{display:block;width:100%;margin-top:8px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media img{height:300px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{padding:48px 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .page-hero{padding:132px 0 56px;}
  .hero-meta{gap:20px;}
  .timeline .tl-item{grid-template-columns:56px minmax(0,1fr);padding-bottom:34px;}
  .timeline .tl-item::before{left:27px;top:52px;}
  .tl-num{width:44px;height:44px;margin-left:5px;border-radius:14px;font-size:15px;}
  .tl-body h3{font-size:18px;}
  .tl-figure img{height:200px;}
  .stat-strip{grid-template-columns:1fr;padding:24px;}
  .cta-panel{padding:36px 22px;border-radius:18px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .brand-sub{display:none;}
  .btn-sm{padding:0 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .btn:hover,.btn-primary:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --primary:#2BE0A8;
  --primary-deep:#17B78A;
  --primary-soft:rgba(43,224,168,.10);
  --accent:#6C8CFF;
  --accent-soft:rgba(108,140,255,.12);
  --amber:#FFC24B;
  --amber-soft:rgba(255,194,75,.12);
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(43,224,168,.18);
  --gap:24px;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(43,224,168,.10), transparent 62%),
    radial-gradient(680px 400px at 92% 4%, rgba(108,140,255,.09), transparent 64%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:#5cf0c0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--bg-3)}
.section-head{max-width:800px;margin-bottom:48px}
.section-head h2{
  font-size:34px;
  position:relative;
  padding-left:16px;
  margin-bottom:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 12px rgba(43,224,168,.5);
}
.section-head p{color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--primary-soft);
  border:1px solid rgba(43,224,168,.28);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:18px;
  line-height:1.6;
}
.eyebrow.is-amber{color:var(--amber);background:var(--amber-soft);border-color:rgba(255,194,75,.3)}
.eyebrow.is-accent{color:var(--accent);background:var(--accent-soft);border-color:rgba(108,140,255,.3)}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(6,12,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,12,20,.94);
  border-bottom-color:rgba(43,224,168,.32);
  box-shadow:0 1px 0 rgba(43,224,168,.12);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
  transition:height .22s ease-out;
}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(43,224,168,.22),rgba(108,140,255,.16));
  border:1px solid rgba(43,224,168,.55);
  box-shadow:0 0 14px rgba(43,224,168,.28) inset,0 0 16px rgba(43,224,168,.16);
  font-family:var(--font-mono);
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:17px;font-weight:700;color:var(--text)}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(43,224,168,.7)}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:var(--text-2);
  padding:5px 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--glass);
}
.dot-live{
  width:7px;height:7px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(43,224,168,.16);
  animation:pulse 1.9s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(43,224,168,.16)}
  50%{box-shadow:0 0 0 7px rgba(43,224,168,.06)}
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:var(--glass);
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span::before{transform:translate(-50%,-7px)}
.nav-toggle span::after{transform:translate(-50%,7px)}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translate(-50%,0) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translate(-50%,0) rotate(-45deg)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:50px;padding:0 32px;font-size:16px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;
  box-shadow:0 8px 24px rgba(43,224,168,.26);
}
.btn-primary:hover{
  color:#04140F;
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(43,224,168,.36),0 0 0 1px rgba(43,224,168,.25);
}
.btn-primary:active{transform:translateY(-1px)}
.btn-secondary{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-secondary:hover{
  color:var(--text);
  border-color:rgba(43,224,168,.5);
  background:rgba(43,224,168,.07);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border-color:transparent;
  padding:0 6px;
  height:40px;
}
.btn-ghost:hover{color:#5cf0c0;transform:translateX(2px)}

/* ===== Hero (narrow) ===== */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(6,12,20,.86),rgba(6,12,20,.97)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset: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:56px 56px;
  mask-image:radial-gradient(circle at 30% 30%,#000 10%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 30%,#000 10%,transparent 72%);
  pointer-events:none;
}
.page-hero .container{max-width:1000px}
.page-hero h1{
  font-size:46px;
  line-height:1.28;
  margin-bottom:20px;
  letter-spacing:-.01em;
}
.page-hero .lead{
  font-size:18px;
  color:var(--text-2);
  max-width:760px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}

/* ===== Breadcrumb ===== */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-3);
  padding:24px 0 0;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--primary)}

/* ===== Intro ===== */
.intro-block{
  max-width:900px;
  color:var(--text-2);
  font-size:17px;
}
.intro-block p + p{margin-top:18px}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:36px;
}
.stat-cell{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform .2s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.stat-cell:hover{
  transform:translateY(-2px);
  border-color:rgba(43,224,168,.34);
  box-shadow:var(--shadow-glow);
}
.stat-cell .num{
  font-family:var(--font-mono);
  font-size:28px;
  font-weight:700;
  color:var(--primary);
  display:block;
  line-height:1.3;
}
.stat-cell .lbl{font-size:13px;color:var(--text-3)}

/* ===== Wide media ===== */
.wide-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  margin-top:8px;
}
.wide-media img{
  width:100%;
  height:400px;
  object-fit:cover;
  border-radius:0;
}
.wide-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,12,20,.18),rgba(6,12,20,.86));
}
.media-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:32px;
  z-index:2;
}
.media-caption h3{font-size:22px;margin-bottom:10px}
.media-caption p{color:var(--text-2);font-size:15px;max-width:700px}
.media-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  line-height:1;
  border:1px solid transparent;
}
.tag-green{color:var(--primary);background:var(--primary-soft);border-color:rgba(43,224,168,.28)}
.tag-blue{color:var(--accent);background:var(--accent-soft);border-color:rgba(108,140,255,.3)}
.tag-amber{color:var(--amber);background:var(--amber-soft);border-color:rgba(255,194,75,.3)}

/* ===== Topic cards (3 columns) ===== */
.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:44px;
}
.topic-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px 28px 28px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  display:flex;
  flex-direction:column;
}
.topic-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:4px;
  border-radius:16px 16px 0 0;
  background:linear-gradient(90deg,var(--primary),rgba(43,224,168,0));
}
.topic-card.is-blue::before{background:linear-gradient(90deg,var(--accent),rgba(108,140,255,0))}
.topic-card.is-amber::before{background:linear-gradient(90deg,var(--amber),rgba(255,194,75,0))}
.topic-card:hover{
  transform:translateY(-2px);
  border-color:rgba(43,224,168,.34);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.topic-card.is-blue:hover{border-color:rgba(108,140,255,.4);box-shadow:var(--shadow-card),0 0 24px rgba(108,140,255,.18)}
.topic-card.is-amber:hover{border-color:rgba(255,194,75,.4);box-shadow:var(--shadow-card),0 0 24px rgba(255,194,75,.16)}
.topic-icon{
  width:48px;height:48px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);
  border:1px solid rgba(43,224,168,.3);
  color:var(--primary);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  margin-bottom:20px;
}
.topic-card.is-blue .topic-icon{background:var(--accent-soft);border-color:rgba(108,140,255,.32);color:var(--accent)}
.topic-card.is-amber .topic-icon{background:var(--amber-soft);border-color:rgba(255,194,75,.32);color:var(--amber)}
.topic-card h3{font-size:20px;margin-bottom:12px}
.topic-card p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.topic-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.topic-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.topic-list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(43,224,168,.6);
}
.topic-card.is-blue .topic-list li::before{background:var(--accent);box-shadow:0 0 8px rgba(108,140,255,.6)}
.topic-card.is-amber .topic-list li::before{background:var(--amber);box-shadow:0 0 8px rgba(255,194,75,.6)}
.topic-meta{
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--text-3);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

/* ===== Flow steps ===== */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:44px;
}
.flow-step{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform .2s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.flow-step:hover{transform:translateY(-2px);border-color:rgba(43,224,168,.32);box-shadow:var(--shadow-glow)}
.flow-num{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--primary);
  letter-spacing:.1em;
  display:block;
  margin-bottom:12px;
}
.flow-step h3{font-size:17px;margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--text-2)}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin-top:8px}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .22s ease-out,background .22s ease-out;
}
.faq-item[open] summary::after{
  content:"−";
  transform:rotate(180deg);
  background:var(--primary-soft);
  border-color:rgba(43,224,168,.4);
}
.faq-answer{
  max-width:720px;
  padding:0 0 24px;
  color:var(--text-2);
  font-size:15px;
}

/* ===== CTA ===== */
.cta-panel{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(43,224,168,.10),rgba(108,140,255,.07) 55%,rgba(255,255,255,.03));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:56px 48px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:32px;margin-bottom:16px}
.cta-panel p{color:var(--text-2);max-width:640px;margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta-tags span{
  display:inline-flex;align-items:center;
  height:26px;padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:12px;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{
  color:var(--text-2);
  font-size:14px;
  margin-top:20px;
  max-width:360px;
}
.footer-col h3{
  font-size:14px;
  color:var(--text);
  margin-bottom:18px;
  font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:var(--text-2);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .nav-links{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px 24px 24px;
    background:rgba(6,12,20,.98);
    border-bottom:1px solid rgba(43,224,168,.24);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{padding:14px 12px;font-size:15px;border-radius:10px}
  .nav-links a::after{display:none}
  .nav-links a.is-active{background:var(--primary-soft)}
  .nav-toggle{display:block}
  .nav-status{display:none}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:130px 0 64px}
  .page-hero h1{font-size:38px}
  .section{padding:72px 0}
  .wide-media img{height:320px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topic-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .page-hero h1{font-size:30px}
  .page-hero .lead{font-size:16px}
  .section-head h2{font-size:26px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .cta-panel{padding:36px 24px}
  .cta-panel h2{font-size:24px}
  .media-caption{padding:22px}
  .wide-media img{height:260px}
  .footer-bottom{flex-direction:column;gap:8px}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  .brand-sub{display:none}
  .footer-grid{grid-template-columns:1fr}
  .page-hero{padding:118px 0 56px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .btn:hover,.topic-card:hover,.stat-cell:hover,.flow-step:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --bg:#060C14;
  --bg-2:#0A1320;
  --bg-3:#070F1A;
  --glass:rgba(255,255,255,0.04);
  --glass-strong:rgba(255,255,255,0.07);
  --glass-border:rgba(255,255,255,0.09);
  --primary:#2BE0A8;
  --primary-dark:#17B78A;
  --primary-10:rgba(43,224,168,0.10);
  --accent:#6C8CFF;
  --amber:#FFC24B;
  --text:#E8F1F8;
  --text-2:#9AAEC0;
  --text-3:#64798C;
  --line:rgba(255,255,255,0.08);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,0.45);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.4,.14,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--primary);text-decoration:none;background:none;transition:color .2s var(--ease);}
a:hover{color:#5CF0C0;}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0.01em;color:var(--text);}
p{margin:0;}
ul,ol,dl,dd{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:104px 0;position:relative;}
.section--alt{background:var(--bg-3);}
.section--tight{padding-top:64px;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{
  font-size:32px;
  position:relative;
  padding-left:16px;
  margin-bottom:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  box-shadow:0 0 14px rgba(43,224,168,.45);
}
.section-head p{color:var(--text-2);font-size:16px;max-width:720px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04201A;
  box-shadow:0 8px 24px rgba(43,224,168,.26);
}
.btn-primary:hover{
  color:#04201A;
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(43,224,168,.36),0 0 0 1px rgba(43,224,168,.35) inset;
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--glass-border);
  color:var(--text);
  backdrop-filter:blur(18px);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:rgba(43,224,168,.45);
  transform:translateY(-2px);
  box-shadow:0 0 22px rgba(43,224,168,.18);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;
}
.badge-primary{background:rgba(43,224,168,.12);color:var(--primary);border-color:rgba(43,224,168,.32);}
.badge-accent{background:rgba(108,140,255,.12);color:#A4B6FF;border-color:rgba(108,140,255,.32);}
.badge-amber{background:rgba(255,194,75,.13);color:var(--amber);border-color:rgba(255,194,75,.34);}
.badge-mute{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--glass-border);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,12,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,10,18,.92);
  border-bottom-color:rgba(43,224,168,.28);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:16px;font-weight:700;letter-spacing:.02em;
  color:var(--primary);
  background:linear-gradient(150deg,rgba(43,224,168,.18),rgba(108,140,255,.10));
  border:1px solid rgba(43,224,168,.5);
  box-shadow:0 0 14px rgba(43,224,168,.28) inset,0 0 16px rgba(43,224,168,.16);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;
  color:var(--text-2);
  font-size:15px;
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-dark));
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(43,224,168,.5);}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:var(--text-2);
  padding:5px 12px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-border);
}
.dot-live{
  width:7px;height:7px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 10px rgba(43,224,168,.9);
  animation:pulse 1.9s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  background:var(--glass);border:1px solid var(--glass-border);
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);
}
.nav-toggle span{top:50%;margin-top:-1px;transition:background .2s var(--ease);}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--text-3);
  padding-top:24px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{width:10px;height:1px;background:var(--text-3);opacity:.6;display:inline-block;}
.breadcrumb .current{color:var(--primary);}

/* 窄版 Hero */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 76px;
  background:var(--bg-2);
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 18% 22%,rgba(43,224,168,.20),transparent 58%),
    linear-gradient(180deg,rgba(6,12,20,.72),rgba(6,12,20,.94)),
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 44px);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{
  font-size:48px;
  line-height:1.24;
  margin:18px 0 16px;
  max-width:820px;
}
.page-hero .lead{
  font-size:18px;color:var(--text-2);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;
}

/* 说明段 */
.intro-block{max-width:820px;}
.intro-block p{color:var(--text-2);font-size:16px;}
.intro-block p + p{margin-top:16px;}

/* 通栏图 */
.wide-figure{margin:0;position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--glass-border);}
.wide-figure img{width:100%;height:340px;object-fit:cover;border-radius:0;}
.wide-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,20,.10),rgba(6,12,20,.78));
}
.wide-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 28px;
  color:var(--text-2);font-size:14px;
  z-index:2;
}
.wide-figure figcaption strong{display:block;color:var(--text);font-size:18px;margin-bottom:6px;}

/* 对比清单 */
.spec-groups{display:flex;flex-direction:column;gap:56px;}
.spec-group h3{
  font-size:22px;
  display:flex;align-items:center;gap:12px;
  margin-bottom:8px;
}
.spec-group h3 .idx{
  font-family:var(--font-mono);font-size:13px;color:var(--primary);
  padding:3px 10px;border-radius:999px;
  background:var(--primary-10);border:1px solid rgba(43,224,168,.3);
}
.spec-group .group-note{color:var(--text-3);font-size:14px;margin-bottom:20px;}
.spec-list{border-top:1px solid var(--line);}
.spec-row{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:32px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.spec-row:hover{background:linear-gradient(90deg,rgba(43,224,168,.06),transparent 70%);padding-left:14px;}
.spec-row dt{
  display:flex;align-items:flex-start;gap:10px;
  font-size:17px;font-weight:600;color:var(--text);
}
.spec-row dt::before{
  content:"";flex:0 0 auto;
  width:7px;height:7px;margin-top:.62em;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(43,224,168,.7);
}
.spec-row dd{color:var(--text-2);font-size:15.5px;}
.spec-row dd .inline-tag{
  display:inline-block;margin-left:8px;padding:1px 9px;border-radius:999px;
  font-size:12px;color:var(--amber);
  background:rgba(255,194,75,.12);border:1px solid rgba(255,194,75,.3);
  vertical-align:middle;
}
.spec-row dd .inline-tag.tag-accent{color:#A4B6FF;background:rgba(108,140,255,.12);border-color:rgba(108,140,255,.3);}

/* 情景提示条 */
.note-strip{
  display:flex;flex-wrap:wrap;gap:14px;
  padding:20px 24px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-border);
  backdrop-filter:blur(18px);
  margin-top:40px;
}
.note-strip span{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px;}
.note-strip span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* CTA 大区块 */
.cta-block{
  position:relative;
  border-radius:var(--radius-card);
  padding:56px 48px;
  background:
    radial-gradient(circle at 82% 18%,rgba(43,224,168,.16),transparent 58%),
    linear-gradient(140deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-block h2{font-size:32px;margin-bottom:16px;}
.cta-block p{color:var(--text-2);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* 页脚 */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:18px;max-width:340px;}
.footer-col h3{
  font-size:15px;font-weight:600;color:var(--text);
  margin-bottom:18px;letter-spacing:.04em;
}
.footer-col ul li + li{margin-top:12px;}
.footer-col ul a{color:var(--text-2);font-size:14.5px;}
.footer-col ul a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:56px;padding-top:24px;
  border-top:1px solid var(--line);
  color:var(--text-3);font-size:13px;
}

/* 响应式 */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .page-hero{padding:56px 0 60px;}
  .page-hero h1{font-size:36px;}
  .section-head h2{font-size:28px;}
  .cta-block{padding:40px 28px;}
  .cta-block h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-links{
    position:fixed;left:0;right:0;top:68px;
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 26px;
    background:rgba(6,12,20,.97);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 68px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links a::after{display:none;}
  .nav-links a.is-active{color:var(--primary);}
  .nav-toggle{display:inline-block;}
  .nav-status{display:none;}
  .spec-row{grid-template-columns:1fr;gap:10px;}
}
@media (max-width:640px){
  body{font-size:15.5px;line-height:1.88;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .page-hero h1{font-size:29px;margin:14px 0 12px;}
  .page-hero .lead{font-size:16px;}
  .section-head h2{font-size:24px;}
  .wide-figure img{height:220px;}
  .wide-figure figcaption{padding:16px 18px;}
  .spec-group h3{font-size:19px;}
  .spec-row{padding:18px 0;}
  .spec-row:hover{padding-left:0;background:none;}
  .cta-block{padding:32px 20px;}
  .cta-block h2{font-size:23px;}
  .btn{width:100%;}
  .cta-actions .btn,.hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .btn:hover{transform:none;}
  .spec-row:hover{padding-left:0;}
}