/* roulang page: index */
:root{
  --bg-0:#070A16;
  --bg-1:#0E1424;
  --bg-2:#131B2E;
  --primary:#2FE0C8;
  --primary-600:#1FBFA9;
  --accent:#7A5CFF;
  --hot:#FF8A3D;
  --t1:#E8EDF7;
  --t2:#9AA6BF;
  --t3:#5E6A85;
  --line:#1B2338;
  --success:#35D07F;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-float:0 20px 48px rgba(0,0,0,.45);
  --shell:1200px;
  --dur:180ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:132px}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) ease}
a:hover{color:var(--primary-600);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;color:var(--t1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 双层导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(7,10,22,.88);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top{display:flex;align-items:center;gap:22px;height:64px;transition:height var(--dur) ease}
.site-header.scrolled .nav-top{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:32px;height:32px;border-radius:50%;
  border:1px solid rgba(47,224,200,.55);
  position:relative;flex:0 0 auto;
  background:radial-gradient(circle at 30% 30%,rgba(122,92,255,.55),transparent 62%);
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:1px solid rgba(47,224,200,.35);
}
.brand-name{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:.01em;white-space:nowrap}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-search{flex:1 1 auto;max-width:340px;position:relative}
.nav-search input{
  width:100%;height:38px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  padding:0 14px 0 38px;
  font-size:14px;color:var(--t1);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.nav-search input::placeholder{color:var(--t3)}
.nav-search input:focus{outline:none;border-color:rgba(47,224,200,.6);box-shadow:0 0 0 3px rgba(47,224,200,.18)}
.nav-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--t3);fill:none;stroke-width:1.8}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-link-plain{font-size:14px;color:var(--t2);text-decoration:none}
.nav-link-plain:hover{color:var(--primary);text-decoration:none}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
}
.menu-btn span{display:block;width:16px;height:2px;background:var(--t1);position:relative;border-radius:2px}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--t1);border-radius:2px}
.menu-btn span::before{top:-5px}
.menu-btn span::after{top:5px}
.nav-tabs{border-top:1px solid var(--line)}
.nav-tabs-inner{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-tabs-inner::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;
  padding:0 15px;border-radius:999px;
  border:1px solid transparent;background:transparent;
  color:var(--t2);font-size:14px;line-height:1;
  transition:color var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.tab:hover{color:var(--t1);background:rgba(255,255,255,.05);text-decoration:none}
.tab.active{
  color:var(--primary);
  border-color:rgba(47,224,200,.5);
  background:rgba(47,224,200,.08);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  white-space:nowrap;text-decoration:none;
  transition:transform var(--dur) ease,filter var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(135deg,#FFA35F,#FF7A28);
  color:#1A0E04;
  box-shadow:0 0 0 1px rgba(255,138,61,.45),0 8px 28px rgba(255,138,61,.26);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#1A0E04}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,61,.3),0 4px 14px rgba(255,138,61,.18)}
.btn-ghost{
  background:var(--glass);border-color:var(--glass-line);color:var(--t1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:rgba(47,224,200,.5);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;filter:none}
.btn-pill{border-radius:999px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:linear-gradient(180deg,rgba(14,20,36,.6),rgba(7,10,22,0))}
.section-head{margin-bottom:28px;max-width:960px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--primary);margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:rgba(47,224,200,.6)}
.section-title{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700}
.section-desc{color:var(--t2);font-size:15px;line-height:1.8;margin-top:10px;max-width:760px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);text-decoration:none}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;transform:scale(1.02)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,10,22,.96) 0%,rgba(7,10,22,.86) 42%,rgba(7,10,22,.58) 100%);
}
.hero-glow{
  position:absolute;width:640px;height:640px;right:-160px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.28),transparent 66%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:72px 0;width:100%}
.hero-copy{max-width:660px}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  font-size:13px;color:var(--t2);
}
.hero-badge b{color:var(--primary);font-weight:600}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.15;font-weight:700;
  letter-spacing:-0.01em;
}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.4vw,18px);color:var(--t2);line-height:1.8;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;margin-top:44px;
  border-top:1px solid var(--line);padding-top:24px;
}
.stat{padding:0 30px;border-left:1px solid var(--line)}
.stat:first-child{padding-left:0;border-left:0}
.stat-num{font-size:22px;font-weight:700;color:var(--t1);line-height:1.3}
.stat-label{font-size:13px;color:var(--t3);margin-top:4px}

/* ---------- 权益编号列表 ---------- */
.benefit-list{border-top:1px solid var(--line)}
.benefit{
  display:grid;grid-template-columns:96px 1.1fr 1.5fr;gap:24px;
  padding:28px 8px;border-bottom:1px solid var(--line);
  transition:background var(--dur) ease;
}
.benefit:hover{background:linear-gradient(90deg,rgba(47,224,200,.07),rgba(47,224,200,0) 70%)}
.benefit-num{
  font-size:28px;font-weight:700;line-height:1.2;
  color:transparent;-webkit-text-stroke:1px rgba(47,224,200,.65);
  font-variant-numeric:tabular-nums;
}
.benefit h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:6px}
.benefit p{color:var(--t2);font-size:14px;line-height:1.8}
.benefit-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(122,92,255,.14);color:#B7A6FF;border:1px solid rgba(122,92,255,.3);
}
.chip-green{background:rgba(47,224,200,.12);color:var(--primary);border-color:rgba(47,224,200,.3)}
.chip-orange{background:rgba(255,138,61,.12);color:#FFB07A;border-color:rgba(255,138,61,.3)}

/* ---------- 三步上手 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:8px}
.steps::before{
  content:"";position:absolute;top:38px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,0),rgba(47,224,200,.55),rgba(122,92,255,.4),rgba(47,224,200,0));
}
.step{position:relative;padding-right:12px}
.step-num{
  font-size:48px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(47,224,200,.7);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;margin-top:18px}
.step p{color:var(--t2);font-size:14px;line-height:1.8;margin-top:8px;max-width:320px}
.step-note{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-top:14px}
.step-note i{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block}

/* ---------- 案例卡（2×2 交错） ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-bottom:48px}
.case-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.case-card:nth-child(even){margin-top:48px}
.case-card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);box-shadow:var(--shadow-card)}
.case-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.case-card:hover .case-thumb img{transform:scale(1.03)}
.case-industry{
  position:absolute;top:12px;left:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(7,10,22,.72);border:1px solid var(--glass-line);color:var(--t1);
  backdrop-filter:blur(10px);
}
.case-body{padding:22px 20px 24px}
.case-body h3{font-size:18px;font-weight:600;line-height:1.45}
.case-body p{color:var(--t2);font-size:14px;line-height:1.8;margin-top:10px}
.case-result{
  display:flex;align-items:baseline;gap:10px;margin-top:16px;
  padding-top:16px;border-top:1px solid var(--line);
}
.case-result strong{font-size:20px;font-weight:700;color:var(--hot);font-variant-numeric:tabular-nums}
.case-result span{font-size:13px;color:var(--t3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--dur) ease,background var(--dur) ease;
}
.faq-item[open]{border-color:rgba(47,224,200,.35);background:var(--bg-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:14px 20px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(47,224,200,.4);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;line-height:1;
  transition:transform var(--dur) ease,background var(--dur) ease;
}
.faq-item[open] .faq-icon{transform:rotate(135deg);background:rgba(47,224,200,.12)}
.faq-answer{padding:0 20px 20px;color:var(--t2);font-size:15px;line-height:1.8;max-width:640px}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0B1220 0%,#080F1E 60%,#0A0F1C 100%);
  border:1px solid var(--line);border-radius:20px;
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.22),transparent 68%);
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
.cta-copy p{color:var(--t2);font-size:15px;margin-top:12px;line-height:1.8}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;text-decoration:none;color:inherit;
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);box-shadow:var(--shadow-card);text-decoration:none;color:inherit}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-badge{
  position:absolute;top:12px;left:12px;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(47,224,200,.16);border:1px solid rgba(47,224,200,.4);color:var(--primary);
  backdrop-filter:blur(8px);
}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.news-meta time{font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;text-align:center;
  background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state svg{width:36px;height:36px;stroke:var(--t3);fill:none;stroke-width:1.4}
.empty-state p{color:var(--t2);font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:#05080F;border-top:1px solid var(--line);padding-top:64px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--t2);font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1)}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{color:var(--t2);font-size:14px;text-decoration:none}
.footer-col a:hover{color:var(--primary);text-decoration:none}
.footer-qr{
  width:96px;height:96px;border-radius:12px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(47,224,200,.12),rgba(122,92,255,.12));
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--t3);text-align:center;line-height:1.5;padding:8px;margin-top:14px;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--t3);font-size:13px}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--t2);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  transition:color var(--dur) ease,border-color var(--dur) ease,background var(--dur) ease;
}
.to-top:hover{color:var(--primary);border-color:rgba(47,224,200,.45);background:rgba(47,224,200,.07)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:78vw;max-width:360px;
  background:rgba(14,20,36,.97);
  backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--line);
  transform:translateX(101%);
  transition:transform .24s ease;
  z-index:90;padding:24px;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,10,22,.72);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
  z-index:85;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer h4{font-size:13px;color:var(--t3);font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin:22px 0 12px}
.drawer-nav a{
  display:block;padding:12px 14px;border-radius:10px;
  color:var(--t1);font-size:15px;text-decoration:none;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);text-decoration:none}
.drawer-nav a.active{color:var(--primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.08)}
.drawer-search input{
  width:100%;height:40px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  padding:0 14px;font-size:14px;color:var(--t1);
}
.drawer-search input::placeholder{color:var(--t3)}
.drawer .btn{width:100%;margin-top:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-bg{background-position:60% center}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-search{max-width:240px}
  .benefit{grid-template-columns:72px 1fr;gap:18px}
  .benefit p{grid-column:2 / -1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-copy{max-width:560px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .site-header.scrolled .nav-top{height:56px}
  .nav-top{gap:14px;height:56px}
  .nav-search{display:none}
  .nav-link-plain{display:none}
  .nav-actions .btn{display:none}
  .menu-btn{display:inline-flex}
  .nav-tabs-inner{height:44px}
  .hero{min-height:420px}
  .hero-inner{padding:48px 0 40px}
  .hero-copy{max-width:100%}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 auto}
  .hero-stats{margin-top:32px;padding-top:20px}
  .stat{padding:0 16px;flex:1 1 50%;border-left:0;border-top:1px solid var(--line);padding-top:12px;margin-top:12px}
  .stat:first-child{border-top:0;margin-top:0;padding-top:0}
  .steps{grid-template-columns:1fr;gap:0}
  .steps::before{left:9px;right:auto;top:16px;bottom:16px;width:1px;height:auto;
    background:linear-gradient(180deg,rgba(47,224,200,0),rgba(47,224,200,.5),rgba(47,224,200,0))}
  .step{padding-left:32px;padding-right:0;padding-bottom:36px}
  .step-num{font-size:38px}
  .step p{max-width:100%}
  .case-grid{grid-template-columns:1fr;padding-bottom:0}
  .case-card:nth-child(even){margin-top:0}
  .cta-band{padding:36px 24px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:559px){
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .section-head-row{flex-direction:column;align-items:flex-start}
  .benefit{grid-template-columns:1fr;gap:8px}
  .benefit p{grid-column:auto}
  .benefit-num{font-size:22px}
  .btn{width:100%}
  .hero-cta .btn{flex:1 1 100%}
  .nav-actions{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-0:#070A16;
  --bg-1:#0E1424;
  --bg-2:#131B2E;
  --primary:#2FE0C8;
  --primary-600:#1FBFA9;
  --accent:#7A5CFF;
  --hot:#FF8A3D;
  --t1:#E8EDF7;
  --t2:#9AA6BF;
  --t3:#5E6A85;
  --t-body:#C9D3E6;
  --line:#1B2338;
  --success:#35D07F;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --sh-card:0 12px 32px rgba(0,0,0,.35);
  --sh-float:0 20px 48px rgba(0,0,0,.45);
  --wrap:1200px;
  --tr:180ms ease;
  --header-h:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:var(--header-h);scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--tr),background-color var(--tr),border-color var(--tr),opacity var(--tr)}
a:hover{color:#5CEEDA}
ul,ol{margin:0;padding:0}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{margin:0;font-size:clamp(24px,3vw,36px);line-height:1.25;letter-spacing:-.01em}
.section-head p{margin:10px 0 0;color:var(--t2);font-size:15px;max-width:640px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.link-more:hover{gap:10px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:300;
  background:rgba(7,10,22,.88);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-main-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height var(--tr)}
.site-header.is-scrolled .header-main-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:700;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:var(--t1)}
.brand-mark{width:22px;height:22px;border-radius:50%;position:relative;flex:0 0 auto;background:radial-gradient(circle at 30% 30%,#8CF3E1,#2FE0C8 45%,#7A5CFF 100%);box-shadow:0 0 16px rgba(47,224,200,.55)}
.brand-mark::after{content:"";position:absolute;inset:6px;border:1px solid rgba(7,10,22,.85);border-radius:50%}
.brand-name em{font-style:normal;color:var(--primary)}
.header-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:360px;margin-left:auto}
.header-search input{
  width:100%;height:40px;padding:0 78px 0 38px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--t1);font-size:14px;outline:none;
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.header-search input::placeholder{color:var(--t3)}
.header-search input:focus{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.18);background:rgba(255,255,255,.06)}
.search-icon{position:absolute;left:13px;color:var(--t3);font-size:15px;line-height:1;pointer-events:none}
.header-search button{
  position:absolute;right:4px;height:32px;padding:0 14px;border:0;border-radius:9px;
  background:rgba(47,224,200,.14);color:var(--primary);font-size:13px;font-weight:600;
  transition:background-color var(--tr),color var(--tr);
}
.header-search button:hover{background:rgba(47,224,200,.24);color:#8CF3E1}
.header-actions{display:flex;align-items:center;gap:14px}
.header-link{color:var(--t2);font-size:14px;white-space:nowrap}
.header-link:hover{color:var(--primary)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:11px;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--glass-line);color:var(--t1);font-size:16px;
}
.menu-toggle:hover{border-color:rgba(47,224,200,.4);color:var(--primary)}
.menu-toggle:active{transform:translateY(1px)}

.nav-tabs{background:rgba(14,20,36,.72);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid var(--line)}
.nav-tabs-inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-tabs-inner::-webkit-scrollbar{display:none}
.tab{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--t2);border:1px solid transparent;white-space:nowrap;
  transition:color var(--tr),background-color var(--tr),border-color var(--tr);
}
.tab:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.tab.active{color:var(--primary);border-color:rgba(47,224,200,.45);background:rgba(47,224,200,.08)}

/* ---------- 抽屉菜单 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,10,22,.72);z-index:390;
  opacity:0;pointer-events:none;transition:opacity 220ms ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:78vw;max-width:340px;z-index:400;
  background:rgba(14,20,36,.96);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--line);
  padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);
  transition:transform 260ms ease;
  box-shadow:var(--sh-float);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:36px;height:36px;border-radius:10px;background:var(--glass);border:1px solid var(--glass-line);color:var(--t2)}
.drawer-close:hover{color:var(--primary);border-color:rgba(47,224,200,.4)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{display:block;padding:12px 14px;border-radius:12px;color:var(--t2);font-size:15px;border:1px solid transparent}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1);border-color:var(--line)}
.drawer-nav a.active{color:var(--primary);background:rgba(47,224,200,.08);border-color:rgba(47,224,200,.35)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform var(--tr),box-shadow var(--tr),filter var(--tr),background-color var(--tr),border-color var(--tr),color var(--tr);
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:999px}
.btn-hot{
  background:linear-gradient(135deg,#FFA96B,#FF8A3D 58%,#F2761F);
  color:#1A0E04;
  box-shadow:0 0 0 1px rgba(255,138,61,.45),0 8px 28px rgba(255,138,61,.26);
}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-1px);color:#1A0E04;box-shadow:0 0 0 1px rgba(255,138,61,.55),0 12px 34px rgba(255,138,61,.34)}
.btn-hot:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,61,.35),0 4px 14px rgba(255,138,61,.2)}
.btn-ghost{background:var(--glass);border-color:var(--glass-line);color:var(--t1)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(47,224,200,.4);color:#fff}
.btn-ghost:active{transform:translateY(1px)}

/* ---------- 面包屑与文章头 ---------- */
.page-head{
  position:relative;
  padding:40px 0 42px;
  background-image:linear-gradient(180deg,rgba(7,10,22,.70),rgba(7,10,22,.94)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--t3)}
.breadcrumb .current{color:var(--t3);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:900px}
.article-head h1{
  margin:0 0 18px;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--t3)}
.article-meta .divider{width:1px;height:12px;background:var(--line)}
.meta-item{font-variant-numeric:tabular-nums;display:inline-flex;align-items:center}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1;
}
.badge-primary{background:rgba(47,224,200,.12);color:var(--primary);border:1px solid rgba(47,224,200,.35)}
.badge-accent{background:rgba(122,92,255,.14);color:#B6A5FF;border:1px solid rgba(122,92,255,.38)}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;color:var(--t2);background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color var(--tr),border-color var(--tr),background-color var(--tr);
}
.chip:hover{color:var(--primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.07)}

/* ---------- 正文 ---------- */
.article-wrap{padding:56px 0 72px}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:16px;line-height:1.85;color:var(--t-body);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#8CF3E1}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);line-height:1.4;color:var(--t1);
  margin:46px 0 16px;padding-left:14px;border-left:3px solid var(--primary);font-weight:700;
}
.article-body h3{font-size:20px;line-height:1.45;color:var(--t1);margin:34px 0 12px;font-weight:600}
.article-body h4{font-size:17px;line-height:1.5;color:var(--t1);margin:26px 0 10px;font-weight:600}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body ul li,.article-body ol li{margin-bottom:8px}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:rgba(47,224,200,.06);
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t3);margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:38px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;max-width:100%}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-2);color:var(--t1);font-weight:600}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body pre{
  background:#0A0F1E;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;margin:24px 0;overflow-x:auto;
  font-size:14px;line-height:1.7;
  font-family:"JetBrains Mono",Consolas,"Courier New",monospace;
}
.article-body code{
  font-family:"JetBrains Mono",Consolas,"Courier New",monospace;
  font-size:.92em;background:rgba(47,224,200,.10);color:#7BF0DC;
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:var(--t-body);font-size:inherit}
.article-body strong{color:var(--t1)}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,224,200,.08);border:1px solid rgba(47,224,200,.35);
  color:var(--primary);font-size:22px;
}
.empty-state p{margin:0 0 22px;color:var(--t2);font-size:15px}

/* ---------- 文末 ---------- */
.article-foot{max-width:760px;margin:48px auto 0;padding-top:28px;border-top:1px solid var(--line)}
.article-tags{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tags-label{font-size:13px;color:var(--t3);letter-spacing:.04em;margin-right:2px}
.read-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.next-item{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.next-item:hover{border-color:rgba(47,224,200,.35);transform:translateY(-2px);box-shadow:var(--sh-card)}
.next-item .next-label{display:block;font-size:12px;color:var(--t3);letter-spacing:.04em;margin-bottom:8px}
.next-item .next-title{display:block;font-size:15px;font-weight:600;color:var(--t1);line-height:1.5}
.next-item .next-desc{display:block;font-size:13px;color:var(--t2);margin-top:8px;line-height:1.7}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);box-shadow:var(--sh-card)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;top:12px;left:12px}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,22,.15),rgba(7,10,22,.55))}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.card-title{
  margin:0 0 10px;font-size:17px;font-weight:600;line-height:1.5;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  margin:0 0 16px;font-size:14px;line-height:1.7;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:72px 0;
  background:
    radial-gradient(600px 240px at 12% 20%,rgba(47,224,200,.12),transparent 70%),
    radial-gradient(520px 220px at 88% 80%,rgba(255,138,61,.10),transparent 70%),
    linear-gradient(120deg,#080D1C,#131B2E 55%,#080D1C);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-inner h2{margin:0 0 10px;font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.01em}
.cta-inner p{margin:0;color:var(--t2);font-size:15px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#080C19,#070A16);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px 32px}
.footer-brand p{margin:16px 0 0;color:var(--t2);font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:600;color:var(--t1);letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:var(--t2);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-col span{display:block;color:var(--t2);font-size:14px;line-height:1.7}
.footer-qr{
  margin-top:16px;width:112px;height:112px;border-radius:14px;
  border:1px dashed rgba(47,224,200,.4);background:rgba(47,224,200,.05);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;line-height:1.6;color:var(--t2);
}
.footer-bottom{
  margin-top:48px;padding:20px 0 24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--t3)}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);color:var(--t2);
  font-size:13px;transition:color var(--tr),border-color var(--tr),background-color var(--tr);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.07)}
.to-top:active{transform:translateY(1px)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  :root{--header-h:104px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .header-main-inner{height:60px;gap:12px}
  .header-search{display:none}
  .header-link{display:none}
  .menu-toggle{display:inline-flex}
  .nav-tabs-inner{height:46px}
  .page-head{padding:30px 0 32px}
  .breadcrumb{margin-bottom:16px}
  .breadcrumb .current{max-width:70vw}
  .article-wrap{padding:40px 0 56px}
  .article-body h2{margin-top:36px}
  .read-next{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:56px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{margin-top:36px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .brand{font-size:16px}
  .brand-mark{width:20px;height:20px}
  .btn{padding:11px 18px;font-size:14px}
  .btn-lg{padding:14px 24px;font-size:15px}
  .article-head h1{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-0:#070A16;
  --bg-1:#0E1424;
  --bg-2:#131B2E;
  --primary:#2FE0C8;
  --primary-600:#1FBFA9;
  --accent:#7A5CFF;
  --hot:#FF8A3D;
  --t1:#E8EDF7;
  --t2:#9AA6BF;
  --t3:#5E6A85;
  --line:#1B2338;
  --success:#35D07F;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --r-pill:999px;
  --s-card:0 12px 32px rgba(0,0,0,.35);
  --s-float:0 20px 48px rgba(0,0,0,.45);
  --s-hot:0 0 0 1px rgba(255,138,61,.45), 0 8px 28px rgba(255,138,61,.26);
  --ease:180ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(122,92,255,.16), transparent 62%),
    radial-gradient(760px 460px at 94% 4%, rgba(47,224,200,.10), transparent 64%);
}
header,main,footer{position:relative;z-index:1;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color var(--ease),border-color var(--ease),background var(--ease);}
a:hover{color:var(--primary-600);}
button{font-family:inherit;}
input,button,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700;color:var(--t1);}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0;}
ol,ul{margin:0;padding:0;list-style:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,200,.28);}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.skip-link{position:absolute;left:16px;top:-60px;background:var(--bg-2);color:var(--t1);padding:10px 18px;border-radius:var(--r-btn);z-index:300;transition:top var(--ease);}
.skip-link:focus{top:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),filter var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease),background var(--ease);
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#FF9C57,#FF7A26);color:#221005;box-shadow:var(--s-hot);}
.btn-primary:hover{color:#221005;filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,61,.35),0 4px 14px rgba(255,138,61,.18);}
.btn-ghost{background:var(--glass);border-color:var(--glass-line);color:var(--t1);backdrop-filter:blur(14px) saturate(140%);}
.btn-ghost:hover{color:var(--primary);border-color:rgba(47,224,200,.45);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

.link-plain{color:var(--t2);font-size:14px;border-bottom:1px solid transparent;}
.link-plain:hover{color:var(--primary);border-bottom-color:rgba(47,224,200,.5);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,10,22,.88);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-main-inner{
  display:flex;align-items:center;gap:20px;
  height:64px;transition:height var(--ease);
}
.site-header.is-compact .nav-main-inner{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:50%;
  background:radial-gradient(circle at 32% 30%, #9AF3E5 0%, var(--primary) 38%, rgba(122,92,255,.85) 100%);
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 0 16px rgba(47,224,200,.35);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:1px solid rgba(7,10,22,.55);
}
.brand-name{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:-.01em;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}
.nav-search{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;max-width:320px;
  height:38px;padding:0 6px 0 16px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.14);}
.nav-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
  color:var(--t1);font-size:14px;
}
.nav-search input::placeholder{color:var(--t3);}
.nav-search button{
  flex:0 0 auto;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(47,224,200,.12);border:1px solid rgba(47,224,200,.32);
  color:var(--primary);font-size:13px;font-weight:600;cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.nav-search button:hover{background:rgba(47,224,200,.2);}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto;}
.nav-link{color:var(--t2);font-size:14px;border-bottom:1px solid transparent;}
.nav-link:hover{color:var(--primary);border-bottom-color:rgba(47,224,200,.5);}
.nav-toggle{
  display:none;align-items:center;gap:6px;
  height:36px;padding:0 14px;border-radius:10px;
  background:var(--glass);border:1px solid var(--glass-line);color:var(--t1);
  font-size:14px;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(47,224,200,.45);color:var(--primary);}

.nav-tabs{border-top:1px solid var(--line);background:rgba(14,20,36,.7);}
.nav-tabs-inner{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--t2);
  border:1px solid transparent;
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.tab:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.tab.active{
  color:var(--primary);
  border-color:rgba(47,224,200,.45);
  background:rgba(47,224,200,.08);
  font-weight:600;
}

/* ---------- 抽屉菜单 ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:200;
  background:rgba(7,10,22,.72);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:210;
  width:78vw;max-width:340px;
  padding:22px 20px 28px;
  background:rgba(19,27,46,.94);
  border-left:1px solid var(--glass-line);
  backdrop-filter:blur(18px) saturate(140%);
  transform:translateX(102%);
  transition:transform 220ms ease;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;
  background:var(--glass);border:1px solid var(--glass-line);color:var(--t1);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(47,224,200,.45);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--t2);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.drawer-nav a.active{color:var(--primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.08);}
.drawer-note{color:var(--t3);font-size:13px;line-height:1.7;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;position:relative;}
.section-tight{padding:40px 0;}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--t2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent);}
.badge{
  display:inline-block;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:rgba(47,224,200,.1);
  border:1px solid rgba(47,224,200,.3);
}
.badge-accent{color:#CBBEFF;background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.36);}
.badge-hot{color:#FFC79B;background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.34);}
.num{font-variant-numeric:tabular-nums;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-banner-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  filter:saturate(115%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(7,10,22,.95) 8%, rgba(7,10,22,.82) 48%, rgba(7,10,22,.62) 100%);
}
.page-banner-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;max-width:1200px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px;}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--primary);}
.crumb span[aria-hidden]{color:var(--t3);}
.crumb-current{color:var(--t3);}
.page-banner h1{max-width:22ch;margin-bottom:16px;}
.page-banner .lead{color:var(--t2);font-size:17px;max-width:640px;line-height:1.7;}
.banner-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:24px;}
.meta-item{font-size:13px;color:var(--t2);font-variant-numeric:tabular-nums;}
.meta-item strong{color:var(--t1);font-weight:600;}
.meta-divider{width:1px;height:14px;background:var(--line);}

/* ---------- 筛选 chip ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:16px 18px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
}
.filter-label{font-size:13px;color:var(--t3);margin-right:6px;letter-spacing:.04em;}
.chip{
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--t2);font-size:14px;cursor:pointer;
  transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease);
}
.chip:hover{color:var(--t1);border-color:rgba(47,224,200,.35);}
.chip.active{
  color:var(--primary);background:rgba(47,224,200,.1);
  border-color:rgba(47,224,200,.45);font-weight:600;
}
.filter-note{margin-top:14px;font-size:13px;color:var(--t3);}

/* ---------- 大图 + 列表 ---------- */
.feature-split{
  display:grid;grid-template-columns:1.08fr 1fr;gap:32px;align-items:start;
}
.feature-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--s-card);
  background:var(--bg-1);
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 400ms ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:38px 20px 18px;
  font-size:13px;color:var(--t2);
  background:linear-gradient(180deg,rgba(7,10,22,0),rgba(7,10,22,.9));
}
.feature-list{display:flex;flex-direction:column;gap:8px;}
.feature-list li{
  padding:20px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.feature-list li:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);background:var(--bg-2);}
.feature-list .num{
  display:block;font-size:24px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,224,200,.7);
  margin-bottom:10px;
}
.feature-list h3{margin-bottom:6px;font-size:17px;}
.feature-list p{color:var(--t2);font-size:14px;line-height:1.75;}

/* ---------- 亮点交错卡 ---------- */
.spot-section{padding-top:60px;}
.spot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.spot-card{
  padding:26px 24px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(19,27,46,.92),rgba(14,20,36,.92));
  border:1px solid var(--line);
  box-shadow:var(--s-card);
  transition:transform var(--ease),border-color var(--ease);
}
.spot-card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);}
.spot-card .badge{margin-bottom:14px;}
.spot-card h3{margin-bottom:10px;}
.spot-card p{color:var(--t2);font-size:14px;line-height:1.8;}
.spot-metric{
  display:flex;align-items:baseline;gap:8px;margin-top:16px;
  font-variant-numeric:tabular-nums;color:var(--t1);
}
.spot-metric strong{font-size:26px;line-height:1;font-weight:700;color:var(--primary);}
.spot-metric span{font-size:13px;color:var(--t3);}
.spot-grid .spot-card:nth-child(even){transform:translateY(28px);}
.spot-grid .spot-card:nth-child(even):hover{transform:translateY(26px);}
.spot-section{padding-bottom:116px;}

/* ---------- 流程 ---------- */
.flow-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start;}
.flow-intro{position:sticky;top:140px;}
.flow-intro p{color:var(--t2);margin-top:14px;font-size:15px;}
.flow-list{position:relative;padding-left:28px;}
.flow-list::before{
  content:"";position:absolute;left:5px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(47,224,200,.55),rgba(122,92,255,.35),rgba(47,224,200,0));
}
.flow-item{position:relative;padding:0 0 30px 0;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-28px;top:9px;
  width:11px;height:11px;border-radius:50%;
  background:var(--bg-0);border:1px solid rgba(47,224,200,.7);
  box-shadow:0 0 0 4px rgba(47,224,200,.08);
}
.flow-item h3{display:flex;align-items:baseline;gap:10px;margin-bottom:8px;}
.flow-item .num{font-size:14px;color:var(--primary);font-weight:700;letter-spacing:.06em;}
.flow-item p{color:var(--t2);font-size:14px;line-height:1.8;max-width:640px;}

/* ---------- FAQ ---------- */
.faq-section{padding-top:40px;}
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item[open]{border-color:rgba(47,224,200,.35);background:var(--bg-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(47,224,200,.45);color:var(--primary);
  font-size:14px;line-height:1;transition:transform var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;max-width:640px;color:var(--t2);font-size:15px;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-inner{
  position:relative;overflow:hidden;
  border-radius:24px;
  padding:56px 40px;
  background:linear-gradient(120deg,#0B1220 0%,#131B2E 52%,#1A1233 100%);
  border:1px solid rgba(255,138,61,.22);
  box-shadow:var(--s-float);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-inner::after{
  content:"";position:absolute;top:-120px;right:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.24),transparent 68%);
}
.cta-content{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-text{max-width:560px;}
.cta-text h2{margin-bottom:12px;font-size:clamp(22px,2.6vw,30px);}
.cta-text p{color:var(--t2);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,20,36,.6),rgba(7,10,22,1));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand p{color:var(--t2);font-size:14px;line-height:1.8;margin-top:18px;max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t1);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{color:var(--t2);font-size:14px;}
.footer-col a{color:var(--t2);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{
  margin-top:18px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--t3);
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding-top:24px;
}
.footer-bottom p{color:var(--t3);font-size:13px;line-height:1.7;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--glass-line);color:var(--t2);
  font-size:13px;cursor:pointer;transition:color var(--ease),border-color var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,224,200,.45);}
.to-top span{font-size:14px;line-height:1;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:36px 0;}
  .feature-split{grid-template-columns:1fr;gap:24px;}
  .flow-wrap{grid-template-columns:1fr;gap:28px;}
  .flow-intro{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .spot-section{padding-bottom:88px;}
  .cta-band{padding-bottom:72px;}
}
@media (max-width:768px){
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-link{display:none;}
  .page-banner{min-height:240px;}
  .page-banner-inner{padding-top:40px;padding-bottom:40px;}
  .page-banner .lead{font-size:15px;}
  .spot-grid{grid-template-columns:1fr;}
  .spot-grid .spot-card:nth-child(even){transform:none;}
  .spot-grid .spot-card:nth-child(even):hover{transform:translateY(-2px);}
  .cta-inner{padding:40px 24px;}
  .cta-content{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:28px 0;}
  .brand-name{font-size:16px;}
  .page-banner{min-height:220px;}
  .page-banner h1{max-width:none;}
  .banner-meta{gap:10px;}
  .meta-divider{display:none;}
  .filter-bar{padding:14px;}
  .chip{font-size:13px;padding:7px 14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .cta-actions{width:100%;}
  .cta-actions .link-plain{width:100%;}
}

/* roulang page: category2 */
:root{
  --bg-0:#070A16;
  --bg-1:#0E1424;
  --bg-2:#131B2E;
  --primary:#2FE0C8;
  --primary-600:#1FBFA9;
  --accent:#7A5CFF;
  --hot:#FF8A3D;
  --t1:#E8EDF7;
  --t2:#9AA6BF;
  --t3:#5E6A85;
  --line:#1B2338;
  --success:#35D07F;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-float:0 20px 48px rgba(0,0,0,.45);
  --shadow-hot:0 0 0 1px rgba(255,138,61,.45),0 8px 28px rgba(255,138,61,.26);
  --dur:180ms;
  --nav-h:112px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-padding-top:124px;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color var(--dur) ease,border-color var(--dur) ease,background-color var(--dur) ease;}
a:hover{color:var(--primary-600);text-decoration:underline;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;line-height:1.25;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(7,10,22,.88);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color var(--dur) ease;
}
.site-header.scrolled{background:rgba(5,8,17,.96);}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height var(--dur) ease;}
.site-header.scrolled .nav-top-inner{height:56px;}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);flex:0 0 auto;}
.brand:hover{color:var(--t1);text-decoration:none;}
.brand-mark{
  width:26px;height:26px;border-radius:50%;
  background:radial-gradient(circle at 32% 30%,var(--primary) 0%,rgba(122,92,255,.95) 58%,rgba(7,10,22,0) 74%);
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 0 18px rgba(47,224,200,.35);
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}

.nav-search{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;max-width:320px;
  height:40px;padding:0 6px 0 14px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-btn);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.nav-search:focus-within{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.18);}
.nav-search input{
  flex:1 1 auto;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--t1);
}
.nav-search input::placeholder{color:var(--t3);}
.nav-search button{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  color:var(--t2);font-size:13px;transition:color var(--dur) ease,background-color var(--dur) ease;
}
.nav-search button:hover{color:var(--primary);background:rgba(47,224,200,.10);}

.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.nav-link{font-size:14px;color:var(--t2);}
.nav-link:hover{color:var(--primary);text-decoration:none;}
.nav-search-toggle{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--glass-line);color:var(--t2);place-items:center;}
.nav-search-toggle:hover{color:var(--primary);border-color:rgba(47,224,200,.4);}

.nav-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--glass-line);padding:10px 9px;flex-direction:column;justify-content:space-between;}
.nav-burger span{display:block;height:2px;border-radius:2px;background:var(--t1);transition:background-color var(--dur) ease;}
.nav-burger:hover span{background:var(--primary);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:filter var(--dur) ease,transform var(--dur) ease,box-shadow var(--dur) ease,background-color var(--dur) ease,border-color var(--dur) ease,color var(--dur) ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;}
.btn-hot{background:linear-gradient(180deg,#FF9B57,#FF8A3D);color:#170D03;box-shadow:var(--shadow-hot);}
.btn-hot:hover{filter:brightness(1.08);color:#170D03;}
.btn-hot:active{box-shadow:0 0 0 1px rgba(255,138,61,.30),0 4px 14px rgba(255,138,61,.20);}
.btn-ghost{background:var(--glass);border-color:var(--glass-line);color:var(--t1);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);}
.btn-ghost:hover{border-color:rgba(47,224,200,.40);background:rgba(47,224,200,.08);color:var(--t1);}
.btn-primary{background:rgba(47,224,200,.14);border-color:rgba(47,224,200,.45);color:var(--primary);}
.btn-primary:hover{background:rgba(47,224,200,.20);color:var(--primary);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:999px;}
.btn-pill{border-radius:999px;}

.nav-tabs{border-top:1px solid rgba(255,255,255,.04);}
.nav-tabs-inner{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  -ms-overflow-style:none;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.nav-tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--t2);
  border:1px solid transparent;transition:all var(--dur) ease;
}
.tab:hover{color:var(--t1);background:rgba(255,255,255,.04);text-decoration:none;}
.tab.active{color:var(--primary);border-color:rgba(47,224,200,.45);background:rgba(47,224,200,.08);}

/* ---------- 抽屉菜单 ---------- */
.channel-drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:78vw;max-width:360px;height:100%;
  background:rgba(14,20,36,.96);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--glass-line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);
  transition:transform 240ms ease;
  overflow-y:auto;
}
.channel-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--glass-line);color:var(--t2);font-size:20px;line-height:1;display:grid;place-items:center;}
.drawer-close:hover{color:var(--primary);border-color:rgba(47,224,200,.4);}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);
  outline:none;font-size:14px;
}
.drawer-search input::placeholder{color:var(--t3);}
.drawer-search input:focus{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.18);}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--t2);transition:all var(--dur) ease;}
.drawer-nav a:hover{color:var(--t1);background:rgba(255,255,255,.05);text-decoration:none;}
.drawer-nav a.active{color:var(--primary);background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.35);}
.drawer-cta{margin-top:auto;width:100%;}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(7,10,22,.72);
  opacity:0;visibility:hidden;transition:opacity 240ms ease,visibility 240ms ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;display:flex;align-items:flex-end;
  min-height:260px;background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(7,10,22,.95) 0%,rgba(7,10,22,.78) 48%,rgba(7,10,22,.58) 100%);
}
.page-hero .container{position:relative;z-index:1;padding-top:38px;padding-bottom:38px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--t3);}
.breadcrumb span[aria-hidden]{color:var(--t3);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--primary);
}
.eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--primary),rgba(47,224,200,0));}
.page-hero h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.15;
  margin:12px 0 0;
}
.hero-sub{margin-top:12px;color:var(--t2);font-size:16px;max-width:620px;}

.stat-strip{border-bottom:1px solid var(--line);background:var(--bg-1);}
.stat-strip-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.stat-item{
  padding:22px 24px;display:flex;flex-direction:column;gap:6px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:0;}
.stat-k{font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--primary);}
.stat-v{font-size:14px;color:var(--t2);line-height:1.6;}

/* ---------- 筛选 chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0;border-bottom:1px solid var(--line);}
.chip{
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--t2);font-size:14px;
  transition:all var(--dur) ease;
}
.chip:hover{color:var(--t1);border-color:rgba(47,224,200,.35);background:rgba(255,255,255,.05);}
.chip.active{color:var(--primary);border-color:rgba(47,224,200,.50);background:rgba(47,224,200,.10);}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:linear-gradient(180deg,var(--bg-0),var(--bg-1) 40%,var(--bg-0));}
.section-head{max-width:760px;margin-bottom:28px;}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;margin-top:10px;}
.section-desc{margin-top:12px;color:var(--t2);font-size:15px;max-width:760px;}

/* ---------- 编号条目列表 ---------- */
.num-list{display:grid;gap:14px;}
.num-item{
  display:grid;grid-template-columns:88px 1fr;gap:22px;align-items:flex-start;
  padding:26px 24px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);box-shadow:var(--shadow-card);
  transition:transform var(--dur) ease,border-color var(--dur) ease,background-color var(--dur) ease;
}
.num-item:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);background:var(--bg-2);}
.num-index{
  font-size:46px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(47,224,200,.55);
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.num-body h3{font-size:18px;font-weight:600;}
.num-body p{margin-top:6px;color:var(--t2);font-size:14.5px;line-height:1.7;}
.num-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(122,92,255,.14);color:#C6B9FF;border:1px solid rgba(122,92,255,.30);
}
.tag.is-cyan{background:rgba(47,224,200,.12);color:#8DF3E4;border-color:rgba(47,224,200,.30);}
.tag.is-hot{background:rgba(255,138,61,.14);color:#FFC79A;border-color:rgba(255,138,61,.30);}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;}
.stack{display:grid;gap:24px;}
.info-card{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);box-shadow:var(--shadow-card);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
}
.info-card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);}
.info-card:focus-within{border-color:rgba(47,224,200,.45);}
.card-media{position:relative;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9;}
.info-card.tall .card-media{aspect-ratio:16/10;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.info-card:hover .card-media img{transform:scale(1.03);}
.badge{
  position:absolute;left:12px;top:12px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(7,10,22,.72);border:1px solid rgba(47,224,200,.40);color:var(--primary);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.45;}
.card-body p{color:var(--t2);font-size:14.5px;line-height:1.7;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}
.card-foot .meta{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;}
.card-link{font-size:14px;font-weight:600;color:var(--primary);}
.card-link:hover{text-decoration:none;color:var(--primary-600);}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.split-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.check-list{display:grid;gap:16px;margin-top:22px;}
.check-list li{display:grid;grid-template-columns:24px 1fr;gap:14px;font-size:15px;line-height:1.7;color:var(--t2);}
.check-list .dot{
  width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(47,224,200,.45);color:var(--primary);font-size:11px;margin-top:4px;
}
.check-list b{display:block;color:var(--t1);font-weight:600;font-size:15.5px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.5fr .5fr;gap:32px;align-items:center;
  padding:52px 48px;border-radius:22px;
  background:linear-gradient(118deg,#080C18 0%,#0F1730 58%,#0A1020 100%);
  border:1px solid rgba(47,224,200,.18);
  box-shadow:var(--shadow-float);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.18),rgba(47,224,200,0) 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.cta-band p{margin-top:12px;color:var(--t2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;position:relative;z-index:1;}
.cta-actions .link-more{font-size:14px;color:var(--t2);}
.cta-actions .link-more:hover{color:var(--primary);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;display:grid;gap:12px;}
.faq details{
  border:1px solid var(--line);border-radius:14px;background:var(--bg-1);
  transition:border-color var(--dur) ease,background-color var(--dur) ease;
}
.faq details:hover{border-color:rgba(47,224,200,.28);}
.faq details[open]{border-color:rgba(47,224,200,.35);background:var(--bg-2);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:15px;line-height:1;
  color:var(--primary);border:1px solid rgba(47,224,200,.40);
  transition:transform var(--dur) ease,background-color var(--dur) ease;
}
.faq details[open] summary .sign{transform:rotate(135deg);background:rgba(47,224,200,.12);}
.faq .answer{padding:0 20px 20px;max-width:640px;color:var(--t2);font-size:15px;line-height:1.8;}

/* ---------- 入口卡 ---------- */
.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#050811;border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-name{font-size:18px;}
.footer-brand p{margin-top:14px;color:var(--t2);font-size:14px;line-height:1.7;max-width:340px;}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{color:var(--t2);font-size:14px;}
.footer-col a:hover{color:var(--primary);text-decoration:none;}
.footer-qr{
  margin-top:16px;width:104px;height:104px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--t3);line-height:1.5;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;color:var(--t3);font-size:13px;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:999px;border:1px solid var(--line);
  color:var(--t2);font-size:13px;transition:all var(--dur) ease;
}
.to-top:hover{color:var(--primary);border-color:rgba(47,224,200,.40);transform:translateY(-2px);}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .section{padding:80px 0;}
  .split{gap:32px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .stack{grid-template-columns:1fr 1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media{order:-1;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{flex-direction:row;align-items:center;flex-wrap:wrap;gap:18px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:767px){
  :root{--nav-h:104px;}
  .container{padding:0 16px;}
  .nav-search{display:none;}
  .nav-search-toggle{display:grid;}
  .nav-link{display:none;}
  .nav-burger{display:flex;}
  .site-header.scrolled .nav-top-inner{height:56px;}
  .page-hero{min-height:220px;}
  .page-hero .container{padding-top:30px;padding-bottom:30px;}
  .stat-strip-inner{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .section{padding:56px 0;}
  .num-item{grid-template-columns:1fr;gap:10px;padding:22px 18px;}
  .num-index{font-size:36px;}
  .stack{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:559px){
  body{font-size:15px;}
  .brand-name{font-size:17px;}
  .btn{padding:11px 18px;font-size:14px;}
  .btn-lg{padding:14px 24px;font-size:15px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (min-width:768px){
  .channel-drawer,.drawer-mask{display:none;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#070A16;
  --bg-1:#0E1424;
  --bg-2:#131B2E;
  --primary:#2FE0C8;
  --primary-600:#1FBFA9;
  --accent:#7A5CFF;
  --hot:#FF8A3D;
  --t1:#E8EDF7;
  --t2:#9AA6BF;
  --t3:#5E6A85;
  --line:#1B2338;
  --success:#35D07F;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --glass-bg:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-float:0 20px 48px rgba(0,0,0,.45);
  --shadow-hot:0 0 0 1px rgba(255,138,61,.45),0 8px 28px rgba(255,138,61,.26);
  --ease:180ms ease;
  --nav-h:112px;
}

/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:124px;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;color:var(--t1);
  background:
    radial-gradient(900px 520px at 10% -10%,rgba(47,224,200,.10),transparent 60%),
    radial-gradient(760px 440px at 94% 2%,rgba(122,92,255,.10),transparent 62%),
    var(--bg-0);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.25}
ul,ol{padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--primary-600)}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,224,200,.28)}
.num,.metric-num,.step-num{font-variant-numeric:tabular-nums}

/* ============ 容器与通用 ============ */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--bg-2);color:var(--t1);padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}
.section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:28px}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700}
.section-desc{margin-top:14px;color:var(--t2);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--primary);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent)}
.lead{color:var(--t2);font-size:16px;line-height:1.85}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--ease),filter var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-hot{background:linear-gradient(180deg,#FFA05E,#FF8A3D);color:#1A1005;box-shadow:var(--shadow-hot)}
.btn-hot:hover{filter:brightness(1.08);transform:translateY(-1px);color:#1A1005}
.btn-hot:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,61,.35),0 4px 14px rgba(255,138,61,.18)}
.btn-ghost{background:var(--glass-bg);border-color:var(--glass-line);color:var(--t1);backdrop-filter:blur(14px) saturate(140%)}
.btn-ghost:hover{border-color:rgba(47,224,200,.42);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:60}
.header-top{background:rgba(7,10,22,.9);border-bottom:1px solid var(--line);backdrop-filter:blur(14px) saturate(140%)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height var(--ease)}
.site-header.scrolled .header-top-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:26px;height:26px;border-radius:50%;position:relative;flex:none;
  border:2px solid var(--primary);box-shadow:0 0 14px rgba(47,224,200,.45),inset 0 0 10px rgba(47,224,200,.25);
}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--primary);opacity:.75}
.brand-name{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:-.01em}
.brand-name em{font-style:normal;color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:14px}
.text-link{font-size:14px;color:var(--t2);font-weight:500}
.text-link:hover{color:var(--primary)}
.site-search{position:relative;display:flex;align-items:center}
.search-input{
  width:228px;height:40px;border-radius:var(--radius-btn);
  background:rgba(7,10,22,.85);border:1px solid var(--line);
  padding:0 14px 0 38px;font-size:14px;color:var(--t1);transition:border-color var(--ease),box-shadow var(--ease);
}
.search-input::placeholder{color:var(--t3)}
.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,224,200,.2)}
.search-toggle{position:absolute;left:6px;width:30px;height:30px;display:none;align-items:center;justify-content:center;background:none;border:none;color:var(--t3);font-size:17px}
.search-toggle:hover{color:var(--primary)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-btn);background:var(--glass-bg);border:1px solid var(--glass-line);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1)}

/* 频道 Tabs */
.nav-tabs{background:rgba(14,20,36,.88);border-bottom:1px solid var(--line);backdrop-filter:blur(14px) saturate(140%)}
.nav-tabs-inner{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-tabs-inner::-webkit-scrollbar{display:none}
.tab{
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--t2);
  border:1px solid transparent;flex:none;
}
.tab:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.tab.active{color:var(--primary);background:rgba(47,224,200,.08);border-color:rgba(47,224,200,.45)}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(7,10,22,.72);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:78vw;max-width:360px;z-index:95;
  background:rgba(14,20,36,.96);border-left:1px solid var(--glass-line);
  backdrop-filter:blur(18px) saturate(150%);
  transform:translateX(102%);transition:transform 220ms ease;
  padding:20px;display:flex;flex-direction:column;gap:22px;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:10px;background:var(--glass-bg);border:1px solid var(--glass-line);color:var(--t1);font-size:18px;line-height:1}
.drawer-close:hover{color:var(--primary);border-color:rgba(47,224,200,.4)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:12px 14px;border-radius:12px;color:var(--t2);font-size:15px;font-weight:600}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1)}
.drawer-nav a.active{color:var(--primary);background:rgba(47,224,200,.08);border:1px solid rgba(47,224,200,.35)}
.drawer-cta{margin-top:auto}

/* ============ 横幅 ============ */
.page-banner{
  position:relative;height:260px;display:flex;align-items:flex-end;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg,rgba(7,10,22,.94) 0%,rgba(7,10,22,.6) 52%,rgba(7,10,22,.86) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover,cover;background-position:center,center;background-repeat:no-repeat;
}
.banner-inner{padding-bottom:32px}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  background:rgba(47,224,200,.12);border:1px solid rgba(47,224,200,.32);
  color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.banner-sub{margin-top:12px;color:var(--t2);font-size:15px;max-width:640px}

/* ============ 页头 ============ */
.page-head{padding:52px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);flex-wrap:wrap}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--t3)}
.page-title{margin-top:18px;font-size:clamp(28px,3.6vw,44px);font-weight:700}
.page-sub{margin-top:16px;color:var(--t2);font-size:16px;max-width:760px}
.metrics{display:flex;flex-wrap:wrap;margin-top:32px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric{flex:1 1 200px;padding:20px 24px;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric-num{font-size:24px;font-weight:700;color:var(--t1)}
.metric-num span{color:var(--primary)}
.metric-label{margin-top:6px;font-size:13px;color:var(--t3)}

/* ============ 筛选 chips ============ */
.support-filter{padding:34px 0 0}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;
  background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--t2);
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.chip:hover{color:var(--t1);border-color:rgba(47,224,200,.35)}
.chip.active{color:var(--primary);background:rgba(47,224,200,.1);border-color:rgba(47,224,200,.45)}

/* ============ 双列图文 + 步骤卡 ============ */
.split-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.split-body h3{font-size:20px;font-weight:600;margin-top:26px}
.split-body h3:first-child{margin-top:0}
.split-body p{margin-top:12px}
.figure{margin-top:28px}
.figure img{width:100%;border-radius:var(--radius-img);border:1px solid var(--line)}
.figure-cap{margin-top:10px;font-size:13px;color:var(--t3);text-align:center}
.step-list{display:flex;flex-direction:column}
.step-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step-item:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);box-shadow:var(--shadow-card)}
.step-num{
  font-size:48px;font-weight:800;line-height:.9;flex:none;
  color:transparent;-webkit-text-stroke:1.5px rgba(47,224,200,.6);
}
.step-title{font-size:18px;font-weight:600}
.step-text{margin-top:8px;font-size:14px;line-height:1.7;color:var(--t2)}
.step-connector{width:1px;height:20px;margin-left:34px;background:linear-gradient(180deg,rgba(47,224,200,.5),rgba(47,224,200,.05))}

/* ============ 卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  border-radius:var(--radius-card);overflow:hidden;background:var(--bg-1);
  border:1px solid var(--line);display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.info-card:hover{transform:translateY(-2px);border-color:rgba(47,224,200,.35);box-shadow:var(--shadow-card)}
.card-grid > .info-card:nth-child(2),
.card-grid > .info-card:nth-child(4){margin-top:36px}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.info-card:hover .card-media img{transform:scale(1.03)}
.badge{
  position:absolute;top:12px;left:12px;padding:5px 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(7,10,22,.78);border:1px solid rgba(47,224,200,.35);color:var(--primary);
  backdrop-filter:blur(8px);
}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17px;font-weight:600}
.card-text{margin-top:8px;font-size:14px;line-height:1.7;color:var(--t2)}
.card-tags{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.tag{
  font-size:12px;font-weight:600;letter-spacing:.04em;padding:5px 10px;border-radius:999px;
  background:rgba(122,92,255,.12);border:1px solid rgba(122,92,255,.3);color:#B9A9FF;
}

/* ============ CTA 带 ============ */
.cta-band{padding:0 0 8px}
.cta-inner{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(47,224,200,.22);
  background-image:
    linear-gradient(115deg,rgba(11,16,30,.96) 0%,rgba(19,27,46,.86) 55%,rgba(7,10,22,.94) 100%),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover,cover;background-position:center,center;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-float);
}
.cta-title{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.cta-text{margin-top:10px;color:var(--t2);font-size:15px;max-width:520px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-link{font-size:15px;font-weight:600}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--bg-1);overflow:hidden;transition:border-color var(--ease)}
.faq-item[open]{border-color:rgba(47,224,200,.32)}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:none;color:var(--primary);font-size:20px;line-height:1;transition:transform var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--t2);max-width:640px}

/* ============ 表单 ============ */
.apply-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:start}
.apply-points{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.apply-points li{display:flex;gap:10px;font-size:14px;color:var(--t2);line-height:1.7}
.apply-points li::before{content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--primary)}
.form-panel{
  padding:28px;border-radius:var(--radius-card);
  background:var(--glass-bg);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--shadow-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;color:var(--t2)}
.field input,.field textarea{
  background:rgba(7,10,22,.75);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;font-size:15px;color:var(--t1);width:100%;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,224,200,.2)}
.field.error input,.field.error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,92,92,.16)}
.field-error{font-size:14px;color:var(--danger);display:none}
.field.error .field-error{display:block}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-note{font-size:13px;color:var(--t3);max-width:340px}
.form-status{margin-top:14px;font-size:14px;color:var(--success);display:none}
.form-status.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--t2);font-size:14px;line-height:1.8;max-width:360px}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{color:var(--t2);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-qr{
  width:112px;height:112px;margin-top:16px;border-radius:12px;
  border:1px dashed var(--line);display:grid;place-items:center;
  font-size:12px;color:var(--t3);text-align:center;line-height:1.5;
  background:rgba(255,255,255,.02);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:24px 0;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;background:transparent;
  border:1px solid var(--line);color:var(--t2);font-size:13px;
  transition:color var(--ease),border-color var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,224,200,.4)}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .split-layout{gap:36px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .split-layout{grid-template-columns:1fr;gap:32px}
  .apply-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{padding:0 16px}
  .text-link{display:none}
  .search-input{display:none;width:min(78vw,300px)}
  .search-toggle{display:inline-flex}
  .site-search.open .search-input{
    display:block;position:absolute;right:0;top:calc(100% + 10px);z-index:80;
    padding-left:14px;box-shadow:var(--shadow-float);
  }
  .site-search.open .search-toggle{left:auto;right:8px}
  .menu-toggle{display:flex}
  .page-banner{height:224px}
  .metrics{flex-direction:column}
  .metric{padding:16px 0;border-right:none;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:none}
  .card-grid{grid-template-columns:1fr}
  .card-grid > .info-card:nth-child(2),
  .card-grid > .info-card:nth-child(4){margin-top:0}
  .cta-inner{padding:32px 22px}
  .faq-list{max-width:100%}
  .form-panel{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px;margin-top:56px}
}
@media (max-width:560px){
  .page-title{font-size:28px}
  .banner-sub{font-size:14px}
  .form-row{grid-template-columns:1fr}
  .btn{width:100%;padding:0 18px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:12px}
  .cta-link{text-align:center}
  .step-item{padding:18px}
  .step-num{font-size:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}