/* roulang page: index */
:root{
  --bg-1:#0A1420;
  --bg-2:#0C1A28;
  --bg-card:#12212F;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);
  --brand:#16E0A3;
  --brand-soft:rgba(22,224,163,.12);
  --amber:#FF8A3D;
  --amber-soft:rgba(255,138,61,.12);
  --text:#E8F1F8;
  --text-2:#A7B8C8;
  --text-3:#6E8298;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 10px 28px rgba(0,0,0,.38);
  --shadow-2:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(22,224,163,.55) inset, 0 10px 26px rgba(22,224,163,.25);
  --mono:"Inter","DIN Alternate","HarmonyOS Sans SC",ui-monospace,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:#5CF5C6;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
button,input,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
.container,.container-fluid{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:88px 0;position:relative;}
.section-tight{padding:64px 0;}
.bg-alt{background:var(--bg-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;}
.section-head p{color:var(--text-2);max-width:640px;margin:10px 0 0;font-size:15.5px;}
.link-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.link-more i{transition:transform .2s ease;}
.link-more:hover i{transform:translateX(4px);}
.glass{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;transition:background .25s ease,box-shadow .25s ease;}
.brand-bar{background:var(--bg-1);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease;}
.site-header.is-stuck .brand-bar{
  background:rgba(10,20,32,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{display:flex;flex-direction:column;justify-content:center;gap:3px;width:30px;height:30px;flex:0 0 30px;}
.brand-mark span{display:block;height:3px;border-radius:999px;background:linear-gradient(90deg,var(--brand),rgba(22,224,163,.25));}
.brand-mark span:nth-child(1){width:22px;}
.brand-mark span:nth-child(2){width:30px;}
.brand-mark span:nth-child(3){width:16px;}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search-box{display:flex;align-items:center;gap:9px;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-md);padding:8px 14px;transition:border-color .2s ease,box-shadow .2s ease;}
.search-box i{color:var(--text-3);font-size:14px;}
.search-box input{background:transparent;border:0;outline:none;width:170px;font-size:14.5px;color:var(--text);}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:rgba(22,224,163,.6);box-shadow:0 0 0 3px rgba(22,224,163,.14);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#04211A;font-weight:700;font-size:15px;
  padding:11px 22px;border-radius:var(--radius-md);border:0;cursor:pointer;
  box-shadow:var(--glow);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{color:#04211A;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(22,224,163,.6) inset,0 14px 32px rgba(22,224,163,.34);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand);font-weight:600;font-size:15px;
  padding:11px 22px;border-radius:var(--radius-md);
  border:1px solid rgba(22,224,163,.4);cursor:pointer;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost:hover{color:var(--brand);background:rgba(22,224,163,.08);border-color:rgba(22,224,163,.75);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.channel-bar{border-bottom:1px solid var(--line);background:var(--bg-2);}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:0 20px;height:54px;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;color:var(--text-2);font-size:15px;font-weight:600;
  padding:8px 16px;border-radius:999px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.channel-link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.channel-link.active{background:var(--brand-soft);color:var(--brand);}
.channel-link.active::after{
  content:"";position:absolute;left:50%;bottom:-14px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(22,224,163,.85);
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:78px 0 86px;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,20,32,.97) 0%,rgba(10,20,32,.88) 44%,rgba(10,20,32,.55) 100%);
}
.hero-ring{
  position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(22,224,163,.16);opacity:.6;pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.85fr);gap:52px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border:1px solid rgba(22,224,163,.28);
  border-radius:999px;padding:7px 16px;margin-bottom:24px;
}
.hero h1{font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.25;letter-spacing:.01em;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{color:var(--text-2);font-size:17px;max-width:640px;margin:20px 0 32px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-facts{display:flex;gap:26px;margin-top:38px;flex-wrap:wrap;}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact strong{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
.hero-fact span{font-size:13.5px;color:var(--text-3);}
.hero-panel{border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-2);}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero-panel-head h2{font-size:16px;font-weight:700;letter-spacing:.02em;}
.hero-panel-head span{font-size:12.5px;color:var(--amber);background:var(--amber-soft);border-radius:999px;padding:4px 12px;}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.stat-item{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-md);padding:16px 14px;}
.stat-item b{display:block;font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;}
.stat-item small{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}

/* ---------- 主张条 ---------- */
.claims{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.claim{padding:32px 26px;border-right:1px solid var(--line);}
.claim:last-child{border-right:0;}
.claim i{font-size:20px;color:var(--brand);margin-bottom:14px;display:block;}
.claim h3{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.claim p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.75;}

/* ---------- 故事区 ---------- */
.story{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.story + .story{margin-top:72px;}
.story-media{
  border-radius:16px;overflow:hidden;position:relative;box-shadow:var(--shadow-2);
  aspect-ratio:16/11;background:var(--bg-card);
}
.story-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.72) saturate(1.05);}
.story h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:18px;}
.story p.lead{color:var(--text-2);font-size:16px;margin-bottom:26px;}
.step-list{display:flex;flex-direction:column;gap:20px;}
.step{display:flex;gap:16px;align-items:flex-start;}
.step b{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand);opacity:.85;line-height:1.1;min-width:44px;}
.step h4{font-size:16px;font-weight:600;margin-bottom:4px;}
.step p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.75;}

/* ---------- 精选卡片 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.card:hover{border-color:rgba(22,224,163,.28);transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card-media{overflow:hidden;aspect-ratio:4/3;background:#12212F;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;}
.card-body h3{font-size:18px;font-weight:600;margin-bottom:10px;transition:color .2s ease;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;line-height:1.75;}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);}
.badge-cat{display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:3px 12px;}
.time-amber{color:var(--amber);font-family:var(--mono);font-size:12.5px;}
.card-wide{grid-column:span 2;}
.card-wide .card-media{aspect-ratio:16/10;}
.card-wide .card-body h3{font-size:22px;}
.hbar-list{grid-column:span 3;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.hbar{display:flex;gap:16px;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow-1);transition:border-color .22s ease,transform .22s ease;}
.hbar:hover{border-color:rgba(22,224,163,.28);transform:translateY(-3px);}
.hbar img{width:104px;height:78px;object-fit:cover;border-radius:12px;flex:0 0 104px;}
.hbar h4{font-size:16px;font-weight:600;margin-bottom:6px;line-height:1.5;}
.hbar:hover h4{color:var(--brand);}
.hbar span{font-size:12.5px;color:var(--text-3);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.news-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);transition:border-color .22s ease,transform .22s ease;
}
.news-card:hover{border-color:rgba(22,224,163,.28);transform:translateY(-3px);}
.news-card-link{display:block;padding:22px 24px;color:var(--text);}
.news-card-link:hover{color:var(--text);}
.news-title{font-size:18px;font-weight:600;margin:12px 0 10px;line-height:1.55;transition:color .2s ease;}
.news-card:hover .news-title{color:var(--brand);}
.news-summary{font-size:14.5px;color:var(--text-2);margin-bottom:16px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px;}
.news-more{font-size:13.5px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:7px;}
.news-more i{transition:transform .2s ease;}
.news-card:hover .news-more i{transform:translateX(4px);}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;background:var(--bg-card);border:1px dashed var(--line-strong);
  border-radius:var(--radius-lg);padding:36px 24px;grid-column:span 2;
}
.empty-state i{font-size:26px;color:var(--text-3);}
.empty-state p{color:var(--text-2);margin:0;font-size:15px;}

/* ---------- 信任背书 ---------- */
.proof-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 30px;box-shadow:var(--shadow-1);
}
.proof-item b{display:block;font-family:var(--mono);font-size:30px;font-weight:700;color:var(--brand);line-height:1.15;}
.proof-item span{display:block;color:var(--text-2);font-size:14.5px;margin-top:6px;}
.tag-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.tag-pill{
  font-size:13.5px;color:var(--text-2);border:1px solid var(--line);
  background:rgba(255,255,255,.04);border-radius:999px;padding:7px 16px;
  transition:color .2s ease,border-color .2s ease;
}
.tag-pill:hover{color:var(--brand);border-color:rgba(22,224,163,.4);}

/* ---------- FAQ ---------- */
.faq-wrap{border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow-2);}
.faq-accordion .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;
}
.faq-accordion .accordion-item:last-child{border-bottom:0;}
.faq-accordion .accordion-button{
  position:relative;background:transparent;box-shadow:none;color:var(--text);
  font-size:16.5px;font-weight:600;padding:20px 44px 20px 22px;border-radius:0;
}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--text-3);width:auto;height:auto;transform:none;
  position:absolute;right:20px;transition:transform .22s ease,color .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand);}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-body{color:var(--text-2);font-size:15px;padding:0 22px 22px;line-height:1.85;}

/* ---------- CTA 表单 ---------- */
.cta-card{
  border-radius:var(--radius-lg);padding:44px 44px;box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-card p{color:var(--text-2);font-size:15.5px;margin:0;}
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.form-input{
  width:100%;background:rgba(10,20,32,.72);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:13px 16px;color:var(--text);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-input::placeholder{color:var(--text-3);}
.form-input:focus{border-color:rgba(22,224,163,.7);box-shadow:0 0 0 4px rgba(22,224,163,.14);}
.pref-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.pref{position:relative;}
.pref input{position:absolute;opacity:0;width:0;height:0;}
.pref span{
  display:inline-block;font-size:13.5px;color:var(--text-2);cursor:pointer;
  border:1px solid var(--line);border-radius:999px;padding:7px 15px;
  transition:all .2s ease;
}
.pref input:checked + span{background:var(--brand-soft);border-color:rgba(22,224,163,.55);color:var(--brand);}
.pref input:focus-visible + span{outline:2px solid var(--brand);outline-offset:2px;}
.form-tip{font-size:14px;margin-top:14px;min-height:20px;}
.form-tip.is-error{color:var(--amber);}
.form-tip.is-ok{color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding-top:64px;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(22,224,163,.35) 0 14px,transparent 14px 28px);
  opacity:.35;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;color:var(--text);}
.footer-brand:hover{color:var(--text);}
.footer-about{color:var(--text-2);font-size:14.5px;line-height:1.85;margin:0 0 14px;max-width:340px;}
.footer-col h4{font-size:15.5px;font-weight:700;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:var(--text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-col p{color:var(--text-2);font-size:14.5px;margin-bottom:10px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom span{display:inline-block;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(22,224,163,.5);background:rgba(10,20,32,.88);color:var(--brand);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 0 0 1px rgba(22,224,163,.3) inset,0 10px 26px rgba(22,224,163,.22);
  opacity:0;visibility:hidden;transition:opacity .25s ease,transform .25s ease;
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-panel{max-width:640px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .card-wide{grid-column:span 2;}
  .hbar-list{grid-column:span 2;grid-template-columns:1fr;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .claims{grid-template-columns:repeat(2,1fr);}
  .claim{border-bottom:1px solid var(--line);}
  .claim:nth-child(2){border-right:0;}
  .story{grid-template-columns:1fr;gap:30px;}
  .story.reverse .story-media{order:2;}
  .proof-band{grid-template-columns:repeat(2,1fr);}
  .cta-card{grid-template-columns:1fr;padding:34px 28px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .search-box input{width:130px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .hero{padding:52px 0 60px;min-height:auto;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-panel{padding:20px;overflow-x:auto;}
  .stat-list{grid-template-columns:repeat(2,minmax(140px,1fr));}
  .claims{grid-template-columns:1fr;}
  .claim{border-right:0;}
  .feature-grid{grid-template-columns:1fr;}
  .card-wide,.hbar-list{grid-column:span 1;}
  .news-grid{grid-template-columns:1fr;}
  .empty-state{grid-column:span 1;}
  .proof-band{grid-template-columns:1fr 1fr;gap:20px;padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .brand-text{font-size:16px;}
  .search-box{display:none;}
  .brand-inner{height:62px;}
  .channel-inner{height:50px;padding:0 16px;}
  .hbar img{width:88px;height:66px;flex:0 0 88px;}
  .faq-accordion .accordion-button{font-size:15.5px;padding:18px 40px 18px 18px;}
}
@media (max-width:520px){
  .container,.container-fluid{padding-left:16px;padding-right:16px;}
  .hero-facts{gap:18px;}
  .hero-fact strong{font-size:19px;}
  .to-top{right:16px;bottom:18px;}
  .cta-card{padding:26px 20px;}
}

/* roulang page: article */
:root{
  --brand:#16E0A3;
  --brand-hover:#4ff0bd;
  --brand-soft:rgba(22,224,163,.12);
  --brand-line:rgba(22,224,163,.40);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --bg-1:#0A1420;
  --bg-2:#0C1A28;
  --card:#12212F;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.10);
  --line-hover:rgba(22,224,163,.28);
  --text:#E8F1F8;
  --text-2:#A7B8C8;
  --text-3:#6E8298;
  --radius:18px;
  --radius-lg:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 10px 28px rgba(0,0,0,.38);
  --shadow-hover:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(22,224,163,.55) inset,0 10px 26px rgba(22,224,163,.25);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Inter","DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg-1);
  color:var(--text);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-hover)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--text)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(22,224,163,.3)}
.container{width:100%;max-width:1240px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
@media (min-width:1200px){.container{max-width:1240px}}
@media (min-width:1400px){.container{max-width:1320px}}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,20,32,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:background .3s ease}
.site-header.is-scrolled{background:rgba(10,20,32,.96);box-shadow:0 8px 30px rgba(0,0,0,.45)}
.brand-bar{padding:12px 0}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:30px;width:34px;padding:4px 5px;border-radius:10px;background:linear-gradient(150deg,rgba(22,224,163,.22),rgba(22,224,163,.04));border:1px solid rgba(22,224,163,.35)}
.brand-mark span{display:block;width:4px;border-radius:3px;background:var(--brand);box-shadow:0 0 10px rgba(22,224,163,.6)}
.brand-mark span:nth-child(1){height:10px;opacity:.7}
.brand-mark span:nth-child(2){height:17px}
.brand-mark span:nth-child(3){height:13px;opacity:.85}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:9px;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-pill);padding:8px 16px;transition:border-color .2s,box-shadow .2s}
.search-box i{color:var(--text-3);font-size:13px}
.search-box input{background:transparent;border:0;color:var(--text);width:170px;outline:none;font-size:14.5px}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--brand-line);box-shadow:0 0 0 3px rgba(22,224,163,.12)}
.btn-main{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#04231A;font-weight:700;font-size:14.5px;padding:10px 20px;border-radius:var(--radius-sm);border:0;white-space:nowrap;box-shadow:var(--glow);transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out}
.btn-main:hover{background:var(--brand-hover);color:#04231A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,163,.65) inset,0 16px 34px rgba(22,224,163,.32)}
.btn-main:active{transform:translateY(-1px)}
.channel-bar{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding-top:6px;padding-bottom:6px}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;flex:0 0 auto;font-size:15px;font-weight:600;color:var(--text-2);padding:9px 14px;border-radius:var(--radius-pill);transition:color .2s,background .2s}
.channel-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.channel-link.active{color:#04231A;background:var(--brand);box-shadow:0 6px 18px rgba(22,224,163,.28)}

/* ===== 页面横幅 ===== */
.page-banner{position:relative;padding:44px 0 52px;background:linear-gradient(120deg,rgba(10,20,32,.96) 12%,rgba(10,20,32,.72) 58%,rgba(10,20,32,.92) 100%),url(/assets/images/backpic/back-2.webp) center/cover no-repeat;background-color:var(--bg-2);border-bottom:1px solid var(--line)}
.page-banner::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,224,163,.5),transparent);opacity:.6}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .current{color:var(--text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-head h1{font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.28;letter-spacing:.01em;max-width:900px;margin-bottom:20px}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:14px;color:var(--text-2)}
.pill{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand);border-radius:var(--radius-pill);padding:4px 13px;font-size:13px;font-weight:600;border:1px solid rgba(22,224,163,.22)}
.pill-time{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--accent);border-radius:var(--radius-pill);padding:4px 13px;font-size:13px;font-weight:600;border:1px solid rgba(255,138,61,.22)}
.meta-num{font-family:var(--mono);color:var(--accent);font-weight:600}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto}
.share-group a,.share-group button{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;font-size:14px;cursor:pointer;transition:all .2s ease-out}
.share-group a:hover,.share-group button:hover{color:var(--brand);border-color:var(--brand-line);transform:translateY(-2px)}

/* ===== 正文布局 ===== */
.main-wrap{padding:56px 0 84px;background:var(--bg-1)}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:40px;align-items:start}
.article-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 38px 40px}
.notice-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px 24px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);margin-bottom:34px}
.notice-card h2{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.notice-card h2 i{color:var(--brand)}
.notice-card ul li{position:relative;padding-left:18px;color:var(--text-2);font-size:15px;margin-bottom:6px;line-height:1.7}
.notice-card ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(22,224,163,.7)}
.article-body{max-width:820px}
.article-body h2{position:relative;padding-left:18px;font-size:clamp(20px,2.1vw,25px);font-weight:700;margin:44px 0 18px}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:.95em;border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(22,224,163,.65)}
.article-body h3{font-size:19px;font-weight:700;margin:32px 0 14px;color:var(--text);display:flex;align-items:center;gap:9px}
.article-body h3::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(22,224,163,.8);flex:0 0 auto}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px;color:var(--text-2)}
.article-body p{margin:0 0 1.32em;color:var(--text-2);font-size:16.5px;line-height:1.9}
.article-body strong{color:var(--text);font-weight:700}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.4em}
.article-body ul{list-style:none;padding-left:18px}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:.6em;color:var(--text-2);line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:.6em;color:var(--text-2)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body img{border-radius:var(--radius-lg);margin:26px auto;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-body blockquote{background:var(--glass);border-left:3px solid var(--brand);border-radius:var(--radius-sm);padding:16px 22px;margin:26px 0;color:var(--text-2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;color:var(--text-2)}
.article-body th{background:var(--card);color:var(--text);font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.empty-state{text-align:center;padding:70px 20px;color:var(--text-2)}
.empty-state i{font-size:38px;color:var(--text-3);margin-bottom:16px;display:block}
.empty-state p{font-size:17px;margin-bottom:20px}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--brand-line);color:var(--brand);font-weight:600;font-size:14.5px;padding:10px 22px;border-radius:var(--radius-sm);transition:all .2s ease-out}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);transform:translateY(-2px)}

/* ===== 侧栏 ===== */
.side-col{display:flex;flex-direction:column;gap:24px;position:sticky;top:108px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 22px 24px;transition:border-color .22s ease-out,box-shadow .22s ease-out}
.side-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.side-title{display:flex;align-items:center;justify-content:space-between;font-size:16.5px;font-weight:700;margin-bottom:16px}
.side-title span{display:flex;align-items:center;gap:8px}
.side-title i{color:var(--brand);font-size:14px}
.side-title a{font-size:13px;color:var(--text-3);font-weight:500}
.side-title a:hover{color:var(--brand)}
.hot-list li{border-bottom:1px dashed rgba(255,255,255,.08);padding:11px 0}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list a{display:flex;gap:10px;font-size:14.8px;color:var(--text-2);line-height:1.6}
.hot-list a:hover{color:var(--brand)}
.hot-list .idx{font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:700;flex:0 0 auto;padding-top:2px}
.mini-card{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px;margin-bottom:12px;background:rgba(255,255,255,.02);transition:border-color .22s,transform .22s}
.mini-card:last-child{margin-bottom:0}
.mini-card:hover{border-color:var(--line-hover);transform:translateY(-2px)}
.mini-card img{width:78px;height:58px;border-radius:10px;flex:0 0 auto;background:var(--card)}
.mini-card h4{font-size:14.5px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:4px}
.mini-card:hover h4{color:var(--brand)}
.mini-card p{font-size:12.5px;color:var(--text-3);margin:0}

/* ===== 文末 ===== */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag-list span{background:var(--brand-soft);color:var(--brand);border:1px solid rgba(22,224,163,.2);border-radius:var(--radius-pill);padding:5px 14px;font-size:13px;font-weight:600}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:26px}
.pn-card{display:block;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;transition:all .22s ease-out}
.pn-card:hover{border-color:var(--line-hover);transform:translateY(-2px);background:rgba(255,255,255,.05)}
.pn-card small{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:6px}
.pn-card span{font-size:15px;font-weight:600;color:var(--text);line-height:1.55}
.pn-card:hover span{color:var(--brand)}

/* ===== 相关推荐 ===== */
.related{padding:64px 0 12px;background:var(--bg-2);border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.5vw,30px);font-weight:700}
.sec-head p{color:var(--text-3);font-size:14.5px;margin:8px 0 0}
.sec-link{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-weight:600;font-size:14.5px}
.sec-link i{transition:transform .2s ease-out}
.sec-link:hover i{transform:translateX(3px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:border-color .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;height:100%}
.news-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.news-card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--card)}
.news-card .thumb img{width:100%;height:100%;transition:transform .35s ease-out}
.news-card:hover .thumb img{transform:scale(1.03)}
.news-card .badge-tag{position:absolute;left:12px;top:12px;background:rgba(10,20,32,.82);backdrop-filter:blur(8px);color:var(--brand);font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);border:1px solid rgba(22,224,163,.28)}
.news-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-card h3{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:10px;transition:color .22s ease-out}
.news-card:hover h3{color:var(--brand)}
.news-card p{color:var(--text-3);font-size:14.5px;line-height:1.75;margin-bottom:16px;flex:1}
.news-card .foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.news-card .foot .date{color:var(--accent);font-family:var(--mono)}

/* ===== CTA ===== */
.cta-band{padding:72px 0 84px;background:var(--bg-2)}
.cta-card{display:grid;grid-template-columns:1.35fr 1fr;gap:34px;align-items:center;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:38px 40px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow)}
.cta-card h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;margin-bottom:14px}
.cta-card p{color:var(--text-2);font-size:15.5px;margin-bottom:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.btn-lg-main{display:inline-flex;align-items:center;gap:9px;background:var(--brand);color:#04231A;font-weight:700;font-size:15.5px;padding:14px 28px;border-radius:var(--radius-sm);box-shadow:var(--glow);transition:transform .2s ease-out,background .2s ease-out}
.btn-lg-main:hover{background:var(--brand-hover);color:#04231A;transform:translateY(-2px)}
.btn-lg-ghost{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--brand-line);color:var(--brand);font-weight:600;font-size:15.5px;padding:14px 26px;border-radius:var(--radius-sm);background:transparent;transition:all .2s ease-out}
.btn-lg-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:60px 0 26px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:repeating-linear-gradient(90deg,rgba(22,224,163,.35) 0 18px,transparent 18px 36px);opacity:.45}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:38px}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);margin-bottom:18px}
.footer-brand:hover{color:var(--text)}
.footer-brand .brand-text{font-size:18px}
.footer-about{color:var(--text-3);font-size:14.3px;line-height:1.85;margin-bottom:12px;max-width:420px}
.footer-col h4{font-size:15.5px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{color:var(--text-2);font-size:14.5px}
.footer-col ul a:hover{color:var(--brand)}
.footer-col p{color:var(--text-3);font-size:14.3px;line-height:1.8;margin-bottom:10px}
.footer-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--text-3);font-size:13.5px}

/* ===== 返回顶部 ===== */
.back-top{position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;border:1px solid var(--brand-line);background:rgba(18,33,47,.92);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(12px);transition:all .3s ease-out;z-index:70;box-shadow:0 0 0 1px rgba(22,224,163,.25) inset,0 10px 26px rgba(22,224,163,.22)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--brand);color:#04231A}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:30px}
  .article-panel{padding:30px 28px 34px}
}
@media (max-width:991px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static;top:auto}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-card{grid-template-columns:1fr;padding:32px 28px}
  .cta-actions{justify-content:flex-start}
  .search-box input{width:120px}
}
@media (max-width:767px){
  body{font-size:16px}
  .brand-text{font-size:16.5px}
  .brand-mark{height:26px;width:30px}
  .search-box{display:none}
  .btn-main{padding:9px 15px;font-size:13.5px}
  .page-banner{padding:30px 0 38px}
  .crumb .current{max-width:180px}
  .share-group{margin-left:0;width:100%}
  .main-wrap{padding:40px 0 56px}
  .article-panel{padding:24px 20px 28px;border-radius:var(--radius-sm)}
  .notice-card{padding:16px 18px;margin-bottom:26px}
  .article-body p{font-size:16px;line-height:1.86}
  .prev-next{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .related{padding:48px 0 8px}
  .cta-band{padding:52px 0 60px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:16px;bottom:18px;width:44px;height:44px}
}
@media (max-width:520px){
  .banner-head h1{font-size:23px}
  .btn-lg-main,.btn-lg-ghost{width:100%;justify-content:center}
  .cta-actions{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#16E0A3;
  --primary-bright:#4DF0BD;
  --primary-soft:rgba(22,224,163,.12);
  --primary-line:rgba(22,224,163,.40);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --bg-1:#0A1420;
  --bg-2:#0C1A28;
  --bg-3:#12212F;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.22);
  --text:#E8F1F8;
  --text-2:#A7B8C8;
  --text-3:#6E8298;
  --r-card:18px;
  --r-media:16px;
  --r-ctrl:12px;
  --shadow-card:0 10px 28px rgba(0,0,0,.38);
  --shadow-hover:0 18px 44px rgba(0,0,0,.50);
  --shadow-glow:0 0 0 1px rgba(22,224,163,.55) inset,0 10px 26px rgba(22,224,163,.25);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate","SFMono-Regular",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary-bright)}
h1,h2,h3,h4,h5{margin:0;color:var(--text);letter-spacing:.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
input,button,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.brand-bar{
  background:rgba(10,20,32,.95);
  border-bottom:1px solid transparent;
  transition:background .28s ease-out,border-color .28s ease-out,backdrop-filter .28s ease-out;
}
.site-header.is-scrolled .brand-bar{
  background:rgba(10,20,32,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:800;font-size:19px;white-space:nowrap}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px}
.brand-mark span{display:block;width:4px;border-radius:3px;background:var(--primary);box-shadow:0 0 8px rgba(22,224,163,.55)}
.brand-mark span:nth-child(1){height:9px;opacity:.55}
.brand-mark span:nth-child(2){height:20px}
.brand-mark span:nth-child(3){height:13px;opacity:.8}
.brand-text{letter-spacing:.01em}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 16px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-box i{color:var(--text-3);font-size:13px}
.search-box input{
  width:150px;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--primary-line);box-shadow:0 0 0 3px rgba(22,224,163,.14)}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#062018;
  font-weight:700;font-size:14.5px;line-height:1;
  padding:13px 22px;border-radius:var(--r-ctrl);
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.btn-main:hover{background:#31efb5;color:#062018;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,163,.7) inset,0 14px 32px rgba(22,224,163,.34)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--primary);
  border:1px solid var(--primary-line);
  font-weight:700;font-size:14.5px;line-height:1;
  padding:12px 22px;border-radius:var(--r-ctrl);
  transition:background .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-bright);border-color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}

.channel-bar{background:var(--bg-2);border-bottom:1px solid var(--line)}
.channel-inner{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;scroll-snap-align:start;
  padding:15px 16px;
  color:var(--text-2);font-size:15px;font-weight:600;white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.channel-link:hover{color:var(--text)}
.channel-link.active{color:var(--primary);border-bottom-color:var(--primary);text-shadow:0 0 14px rgba(22,224,163,.45)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:86px 0 66px;
  background:linear-gradient(105deg,rgba(10,20,32,.94) 0%,rgba(10,20,32,.82) 45%,rgba(10,20,32,.55) 100%),
             url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,163,.35),transparent);
}
.hero-glow{
  position:absolute;width:520px;height:520px;right:-160px;top:-220px;
  background:radial-gradient(circle,rgba(22,224,163,.16),transparent 68%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.18fr .82fr;gap:52px;align-items:center}
.pill-label{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-soft);color:var(--primary);
  border:1px solid rgba(22,224,163,.22);
  border-radius:999px;padding:7px 15px;
  font-size:13.5px;font-weight:600;letter-spacing:.02em;
}
.page-title{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;line-height:1.25;letter-spacing:.01em;
  margin:20px 0 18px;max-width:820px;
}
.page-lede{color:var(--text-2);font-size:16.5px;max-width:760px;margin-bottom:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

.hero-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.hero-card h2{font-size:15px;font-weight:600;color:var(--text-2);margin-bottom:16px;letter-spacing:.02em}
.hero-card-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 14px}
.hero-stat{border-left:2px solid rgba(22,224,163,.45);padding-left:12px}
.hero-stat b{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--primary);line-height:1.2}
.hero-stat span{display:block;font-size:13px;color:var(--text-3);margin-top:2px}

.anchor-tags{
  display:flex;gap:10px;margin-top:36px;
  overflow-x:auto;padding-bottom:6px;
  -ms-overflow-style:none;scrollbar-width:none;
}
.anchor-tags::-webkit-scrollbar{display:none}
.tag-pill{
  flex:0 0 auto;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);
  border-radius:999px;padding:8px 16px;
  font-size:13.5px;font-weight:600;white-space:nowrap;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.tag-pill:hover{color:var(--primary);border-color:var(--primary-line);background:var(--primary-soft)}

/* ---------- 板块 ---------- */
.section{padding:84px 0}
.section-alt{background:var(--bg-2)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px;margin-bottom:0}
.eyebrow{
  display:inline-block;color:var(--primary);font-size:13.5px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px;
}

/* ---------- 卖点条 ---------- */
.feature-strip{display:grid;grid-template-columns:repeat(4,1fr)}
.feature-item{padding:4px 24px;border-left:1px solid var(--line)}
.feature-item:first-child{border-left:0;padding-left:0}
.feature-item i{font-size:19px;color:var(--primary);margin-bottom:14px;display:block}
.feature-item h3{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.5}
.feature-item p{color:var(--text-2);font-size:14.5px;line-height:1.8;margin:0}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card-x{
  display:flex;flex-direction:column;
  background:var(--bg-3);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.card-x:hover{transform:translateY(-4px);border-color:var(--primary-line);box-shadow:var(--shadow-hover)}
.card-media{overflow:hidden;background:var(--bg-3)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .28s ease-out}
.card-x:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.badge-x{
  display:inline-flex;align-items:center;
  background:var(--primary-soft);color:var(--primary);
  border-radius:999px;padding:4px 12px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-time{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--accent);
  border-radius:999px;padding:4px 12px;
  font-size:12.5px;font-weight:600;
}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:14px 0 10px;transition:color .22s ease-out}
.card-x:hover .card-body h3{color:var(--primary)}
.card-body p{color:var(--text-2);font-size:14.5px;line-height:1.78;margin:0}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:16px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.text-link i{transition:transform .2s ease-out;font-size:12px}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-media);box-shadow:var(--shadow-card)}
.split-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-media);
  background:linear-gradient(160deg,rgba(10,20,32,.10),rgba(10,20,32,.55));
  pointer-events:none;
}
.split h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;margin-bottom:16px}
.split p{color:var(--text-2);font-size:16px}
.check-list{margin-top:24px;display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;color:var(--text-2);font-size:15.5px}
.check-list i{color:var(--primary);font-size:13px;margin-top:8px}

/* ---------- 步骤 ---------- */
.step-list{display:grid;gap:0;max-width:860px}
.step{display:grid;grid-template-columns:auto 1fr;gap:24px;position:relative;padding-bottom:36px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:22px;top:52px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(22,224,163,.45),rgba(22,224,163,.06));
}
.step:last-child::before{display:none}
.step-num{
  position:relative;z-index:1;
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(22,224,163,.28);
  color:var(--primary);font-family:var(--font-num);font-size:17px;font-weight:700;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:8px}
.step p{color:var(--text-2);font-size:15.5px;margin:0}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--bg-3);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:34px 32px;
  box-shadow:var(--shadow-card);
}
.stat-item{border-left:1px solid var(--line);padding-left:24px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-item b{display:block;font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-item span{display:block;font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:8px 24px;
}
.faq-wrap .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-button{
  background:transparent;color:var(--text);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:22px 0 22px 14px;border-left:3px solid transparent;
  box-shadow:none;
}
.faq-wrap .accordion-button:not(.collapsed){
  background:transparent;color:var(--primary);
  border-left-color:var(--primary);
  box-shadow:none;
}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent;border-left-color:var(--primary)}
.faq-wrap .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;margin-left:auto;
  font-size:12px;color:var(--text-3);
  transition:transform .22s ease-out,color .22s ease-out;
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--primary)}
.faq-wrap .accordion-body{color:var(--text-2);font-size:15.5px;line-height:1.85;padding:0 0 22px 14px;max-width:820px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:center;
  background:linear-gradient(135deg,rgba(22,224,163,.10),rgba(255,138,61,.06)),var(--bg-3);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:42px 40px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;line-height:1.4;margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:15.5px;margin-bottom:0}
.cta-form{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
}
.field-row{display:flex;gap:10px;flex-wrap:wrap}
.field-row input{
  flex:1 1 200px;min-width:0;
  background:rgba(10,20,32,.72);
  border:1px solid var(--line);
  border-radius:var(--r-ctrl);
  padding:13px 16px;font-size:14.5px;color:var(--text);
  outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field-row input::placeholder{color:var(--text-3)}
.field-row input:focus{border-color:var(--primary-line);box-shadow:0 0 0 3px rgba(22,224,163,.14)}
.form-note{margin:14px 0 0;font-size:13px;color:var(--text-3);line-height:1.7}
.form-note.is-error{color:var(--accent)}
.pref-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pref-tags label{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;
  font-size:13px;color:var(--text-2);cursor:pointer;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.pref-tags input{accent-color:var(--primary);margin:0}
.pref-tags label:hover{border-color:var(--primary-line);color:var(--text)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);margin-top:20px}
.footer-divider{
  height:6px;
  background-image:repeating-linear-gradient(90deg,rgba(22,224,163,.22) 0 14px,transparent 14px 28px);
  opacity:.6;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:60px 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:800;font-size:18px;margin-bottom:18px}
.footer-brand:hover{color:var(--text)}
.footer-about{color:var(--text-3);font-size:14px;line-height:1.85;max-width:420px;margin-bottom:14px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:12px}
.footer-col li a{color:var(--text-2);font-size:14.5px;transition:color .2s ease-out}
.footer-col li a:hover{color:var(--primary)}
.footer-col p{color:var(--text-3);font-size:14px;line-height:1.85;margin-bottom:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  color:var(--text-3);font-size:13.5px;
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#062018;
  box-shadow:var(--shadow-glow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s ease-out,transform .26s ease-out,visibility .26s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:#31efb5;color:#062018}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .feature-strip{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .feature-item:nth-child(3){border-left:0;padding-left:0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-card{max-width:560px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .page-hero{padding:68px 0 52px}
  .split{grid-template-columns:1fr;gap:32px}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .cta-band{grid-template-columns:1fr;padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-box{display:none}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:48px 0}
  .page-hero{padding:56px 0 44px}
  .section-head{margin-bottom:32px}
  .brand-text{font-size:17px}
  .brand-inner{height:62px}
  .channel-link{padding:13px 12px;font-size:14.5px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .feature-strip{grid-template-columns:1fr;gap:0}
  .feature-item{border-left:0;padding:20px 0;border-top:1px solid var(--line)}
  .feature-item:first-child{border-top:0;padding-top:0}
  .card-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr;padding:26px 22px}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:20px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .faq-wrap{padding:8px 18px}
  .faq-wrap .accordion-button{font-size:15.5px;padding:18px 0 18px 12px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:519.98px){
  .hero-stat b{font-size:22px}
  .hero-card-grid{gap:14px 12px}
  .cta-band{padding:26px 20px}
  .btn-main,.btn-ghost{padding-left:18px;padding-right:18px}
}

/* roulang page: category2 */
:root{
  --brand:#16E0A3;
  --brand-strong:#4ff0bd;
  --brand-soft:rgba(22,224,163,.12);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --bg-1:#0A1420;
  --bg-2:#0C1A28;
  --card:#12212F;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#E8F1F8;
  --text-2:#A7B8C8;
  --text-3:#6E8298;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:16px;
  --shadow:0 10px 28px rgba(0,0,0,.38);
  --shadow-hover:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(22,224,163,.55) inset,0 10px 26px rgba(22,224,163,.25);
  --ease:.22s ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-strong);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-family:"Inter","DIN Alternate","SF Mono",ui-monospace,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,20,32,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(10,20,32,.92);box-shadow:0 8px 30px rgba(0,0,0,.45);}
.brand-bar{display:flex;align-items:center;min-height:72px;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;width:30px;height:30px;flex:0 0 30px;}
.brand-mark span{flex:1;border-radius:2px;background:var(--brand);}
.brand-mark span:nth-child(1){height:38%;opacity:.55;}
.brand-mark span:nth-child(2){height:68%;opacity:.8;}
.brand-mark span:nth-child(3){height:100%;box-shadow:0 0 10px rgba(22,224,163,.6);}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:16px;}
.search-box{
  display:flex;align-items:center;gap:9px;
  padding:9px 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-box:focus-within{border-color:rgba(22,224,163,.6);box-shadow:0 0 0 3px rgba(22,224,163,.14);background:rgba(255,255,255,.07);}
.search-box input{
  width:150px;background:transparent;border:0;outline:none;color:var(--text);
  font-size:14px;
}
.search-box input::placeholder{color:var(--text-3);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);
  background:var(--brand);color:#06170F;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  box-shadow:var(--glow);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
  white-space:nowrap;
}
.btn-main:hover{color:#06170F;background:#31e9b1;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,163,.8) inset,0 16px 34px rgba(22,224,163,.35);}
.btn-main:active{transform:translateY(-1px);}
.channel-bar{background:rgba(255,255,255,.028);border-top:1px solid rgba(255,255,255,.06);}
.channel-inner{display:flex;align-items:center;gap:26px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-block;
  padding:14px 2px;
  color:var(--text-2);font-size:15px;font-weight:600;white-space:nowrap;
  transition:color var(--ease);
}
.channel-link:hover{color:var(--text);}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 12px rgba(22,224,163,.85);
}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:84px 0 92px;
  background-image:linear-gradient(102deg,rgba(10,20,32,.95) 0%,rgba(10,20,32,.82) 44%,rgba(10,20,32,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,163,.18) 0%,rgba(22,224,163,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.eyebrow i{font-size:11px;}
.hero h1{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;line-height:1.25;letter-spacing:.01em;
  margin-bottom:6px;
}
.hero h1 .h1-sub{
  display:block;margin-top:12px;
  font-size:clamp(15px,2vw,21px);
  font-weight:600;color:var(--brand);letter-spacing:.02em;line-height:1.5;
}
.hero-lead{
  max-width:640px;margin-top:20px;
  color:var(--text-2);font-size:16px;line-height:1.9;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);
  background:transparent;color:var(--brand);
  border:1px solid rgba(22,224,163,.42);
  font-size:14px;font-weight:600;
  transition:background var(--ease),border-color var(--ease),transform var(--ease),color var(--ease);
}
.btn-ghost:hover{color:var(--brand-strong);background:rgba(22,224,163,.10);border-color:rgba(22,224,163,.75);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}

.hero-card{
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.hero-card-title{
  font-size:13px;font-weight:600;color:var(--text-3);
  letter-spacing:.1em;margin-bottom:18px;
}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px 18px;}
.hero-stat{border-left:2px solid rgba(22,224,163,.35);padding-left:14px;}
.hero-stat .num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;}
.hero-stat .unit{font-size:13px;color:var(--text-2);margin-left:4px;}
.hero-stat p{font-size:13px;color:var(--text-3);margin-top:6px;line-height:1.6;}

/* ============ 锚点标签 ============ */
.anchor-bar{
  background:var(--bg-2);
  border-bottom:1px solid rgba(255,255,255,.05);
  padding:18px 0;
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-2);font-size:14px;font-weight:600;white-space:nowrap;
  transition:all var(--ease);
}
.anchor-pill:hover{color:var(--brand);border-color:rgba(22,224,163,.55);background:var(--brand-soft);transform:translateY(-1px);}
.anchor-pill i{font-size:12px;color:var(--brand);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.alt{background:var(--bg-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;line-height:1.35;letter-spacing:.01em;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.9;max-width:820px;}

/* ============ 频道构成 4 段 ============ */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.pillar{padding:4px 26px;border-left:1px solid var(--line);}
.pillar:first-child{border-left:0;padding-left:0;}
.pillar:last-child{padding-right:0;}
.pillar-icon{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;
  margin-bottom:16px;
}
.pillar h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.pillar p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding:6px 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(22,224,163,0),rgba(22,224,163,.55) 10%,rgba(22,224,163,.35) 90%,rgba(22,224,163,0));
}
.tl-item{
  display:grid;
  grid-template-columns:1fr 92px 1fr;
  align-items:center;
  margin-bottom:40px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  grid-row:1;grid-column:2;
  justify-self:center;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-1);
  border:2px solid rgba(22,224,163,.55);
  color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 0 7px rgba(22,224,163,.06);
}
.tl-item.left .tl-card{grid-row:1;grid-column:1;margin-right:28px;}
.tl-item.right .tl-card{grid-row:1;grid-column:3;margin-left:28px;}
.tl-item.left .tl-node,.tl-item.right .tl-node{grid-row:1;grid-column:2;}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(22,224,163,.5);box-shadow:var(--shadow-hover);}
.tl-media{aspect-ratio:16/9;overflow:hidden;background:var(--card);}
.tl-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.tl-card:hover .tl-media img{transform:scale(1.03);}
.tl-body{padding:22px;}
.tl-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:12px;}
.tl-period{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-live{background:var(--brand-soft);color:var(--brand);}
.badge-done{background:rgba(255,255,255,.06);color:var(--text-3);}
.badge-time{background:var(--accent-soft);color:var(--accent);}
.tl-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;transition:color var(--ease);}
.tl-card:hover .tl-body h3{color:var(--brand);}
.tl-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.tl-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);}
.link-more i{transition:transform var(--ease);font-size:12px;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 跟踪方式 ============ */
.how-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.step{display:flex;gap:20px;margin-bottom:28px;}
.step:last-child{margin-bottom:0;}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:var(--brand);
  min-width:54px;opacity:.92;
  font-family:"Inter","DIN Alternate",ui-monospace,Menlo,monospace;
}
.step h3{font-size:17.5px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
.how-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:var(--card);
}
.how-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.how-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,20,32,.15),rgba(10,20,32,.72));
}
.how-visual-cap{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
}
.how-visual-cap strong{display:block;font-size:16px;font-weight:700;margin-bottom:6px;}
.how-visual-cap span{font-size:13.5px;color:var(--text-2);}

/* ============ 数据带 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:30px 24px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.stat-cell{text-align:center;border-left:1px solid var(--line);}
.stat-cell:first-child{border-left:0;}
.stat-cell .num{display:block;font-size:30px;font-weight:800;color:var(--brand);line-height:1.15;}
.stat-cell p{font-size:13.5px;color:var(--text-3);margin-top:8px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--brand);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--brand);font-size:14px;transition:transform var(--ease);flex:0 0 auto;}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary i{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}

/* ============ CTA ============ */
.cta-band{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:44px 40px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(22,224,163,.10),rgba(255,255,255,.03) 55%),var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);font-weight:700;line-height:1.4;margin-bottom:14px;}
.cta-band p{color:var(--text-2);font-size:15.5px;line-height:1.9;}
.form-card{
  padding:24px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.form-label{display:block;font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:10px;}
.form-input{
  width:100%;padding:13px 16px;
  border-radius:var(--radius-sm);
  background:rgba(10,20,32,.65);
  border:1px solid var(--line);
  color:var(--text);font-size:15px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-input::placeholder{color:var(--text-3);}
.form-input:focus{border-color:rgba(22,224,163,.75);box-shadow:0 0 0 3px rgba(22,224,163,.15);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 20px;}
.chip{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-2);font-size:13.5px;font-weight:600;
  cursor:pointer;transition:all var(--ease);
  user-select:none;
}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip:hover{border-color:rgba(22,224,163,.5);color:var(--text);}
.chip input:checked + span{color:var(--brand);}
.chip:has(input:checked){background:var(--brand-soft);border-color:rgba(22,224,163,.6);color:var(--brand);}
.form-msg{font-size:13.5px;color:var(--accent);margin-top:12px;min-height:20px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(22,224,163,0),rgba(22,224,163,.5),rgba(255,138,61,.35),rgba(22,224,163,0));
  opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);margin-bottom:18px;}
.footer-brand:hover{color:var(--text);}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;margin-bottom:12px;max-width:400px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:var(--text-3);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.85;margin-bottom:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--text-3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#06170F;font-size:16px;
  box-shadow:var(--glow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:#06170F;background:#31e9b1;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-card{max-width:560px;}
  .how-grid{grid-template-columns:1fr;gap:38px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .pillars{grid-template-columns:1fr 1fr;gap:32px 0;}
  .pillar:nth-child(3){border-left:0;padding-left:0;}
  .pillar:nth-child(2n){padding-right:0;}
  .stat-band{grid-template-columns:1fr 1fr;gap:26px;}
  .stat-cell:nth-child(3){border-left:0;}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .brand-bar{min-height:64px;}
  .brand-text{font-size:16px;}
  .search-box{display:none;}
  .brand-actions .btn-main{padding:9px 16px;font-size:13px;}
  .hero{padding:56px 0 60px;}
  .hero-lead{font-size:15.5px;}
  .hero-btns{gap:12px;}
  .hero-btns .btn-main,.hero-btns .btn-ghost{width:100%;}
  .hero-card{padding:22px 18px;}
  .hero-stats{gap:18px 14px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .pillars{grid-template-columns:1fr;gap:0;}
  .pillar{border-left:0;padding:18px 0;border-top:1px solid var(--line);}
  .pillar:first-child{border-top:0;padding-top:0;}
  .pillar:nth-child(3){border-left:0;}
  .pillar:last-child{padding-bottom:0;}
  .timeline::before{left:22px;transform:none;}
  .tl-item{grid-template-columns:44px 1fr;align-items:start;margin-bottom:24px;}
  .tl-item.left .tl-card,
  .tl-item.right .tl-card{grid-row:1;grid-column:2;margin:0 0 0 16px;}
  .tl-item.left .tl-node,
  .tl-item.right .tl-node{grid-row:1;grid-column:1;justify-self:start;width:36px;height:36px;font-size:11px;}
  .tl-body{padding:18px;}
  .how-grid{gap:30px;}
  .step{gap:14px;}
  .step-num{font-size:26px;min-width:42px;}
  .stat-band{grid-template-columns:1fr 1fr;padding:24px 18px;}
  .stat-cell .num{font-size:24px;}
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:26px 20px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-grid > div:last-child{grid-column:auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .to-top{right:16px;bottom:16px;width:42px;height:42px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-stat .num{font-size:24px;}
  .tl-body h3{font-size:17px;}
  .stat-band{grid-template-columns:1fr 1fr;gap:18px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A1420;
  --bg-2:#0C1A28;
  --card:#12212F;
  --primary:#16E0A3;
  --primary-soft:rgba(22,224,163,.12);
  --primary-line:rgba(22,224,163,.40);
  --amber:#FF8A3D;
  --amber-soft:rgba(255,138,61,.12);
  --text:#E8F1F8;
  --muted:#A7B8C8;
  --dim:#6E8298;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.22);
  --glass:rgba(255,255,255,.05);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-card:0 10px 28px rgba(0,0,0,.38);
  --sh-hover:0 18px 44px rgba(0,0,0,.50);
  --sh-glow:0 0 0 1px rgba(22,224,163,.55) inset,0 10px 26px rgba(22,224,163,.25);
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"Inter","DIN Alternate","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 420px at 82% -8%,rgba(22,224,163,.10),transparent 62%),
    radial-gradient(620px 380px at 6% 22%,rgba(255,138,61,.06),transparent 60%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#4dffc4}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(22,224,163,.30)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1;
  border-radius:var(--r-md);
  padding:14px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-main{
  background:var(--primary);
  color:#062018;
  box-shadow:var(--sh-glow);
}
.btn-main:hover{background:#22f0b1;color:#062018;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,224,163,.65) inset,0 16px 34px rgba(22,224,163,.32)}
.btn-main:active{transform:translateY(-1px)}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary-line);
}
.btn-ghost:hover{background:var(--primary-soft);color:#4dffc4;transform:translateY(-2px)}
.btn-text{
  padding:6px 0;background:none;border:none;color:var(--primary);
}
.btn-text i{transition:transform .2s ease}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:13.5px;font-weight:600;line-height:1.6;
  border:1px solid rgba(22,224,163,.20);
}
.tag-amber{
  background:var(--amber-soft);color:var(--amber);
  border-color:rgba(255,138,61,.22);
}
.tag-line{background:transparent;color:var(--muted);border-color:var(--line)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  backdrop-filter:blur(0px);
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(10,20,32,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.brand-bar{background:rgba(10,20,32,.55);border-bottom:1px solid var(--line)}
.site-header.is-scrolled .brand-bar{background:transparent;border-bottom-color:transparent}
.brand-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:70px;
}
.brand{display:inline-flex;align-items:center;gap:11px}
.brand-mark{
  position:relative;display:inline-flex;align-items:flex-end;gap:3px;
  width:34px;height:30px;flex:0 0 34px;
}
.brand-mark span{
  display:block;width:5px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(22,224,163,.35));
}
.brand-mark span:nth-child(1){height:14px}
.brand-mark span:nth-child(2){height:24px;background:linear-gradient(180deg,#4dffc4,rgba(22,224,163,.5))}
.brand-mark span:nth-child(3){height:19px;background:linear-gradient(180deg,var(--amber),rgba(255,138,61,.35))}
.brand-mark::after{
  content:"";position:absolute;left:-3px;right:-3px;bottom:-5px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--primary),rgba(255,138,61,.7));opacity:.7;
}
.brand-text{font-size:19px;font-weight:800;color:var(--text);letter-spacing:.02em;white-space:nowrap}
.brand:hover .brand-text{color:#fff}
.brand-actions{display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:8px 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box i{color:var(--dim);font-size:13px}
.search-box input{
  background:none;border:none;outline:none;
  width:150px;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--dim)}
.search-box:focus-within{border-color:var(--primary-line);box-shadow:0 0 0 3px rgba(22,224,163,.14);background:rgba(22,224,163,.05)}

.channel-bar{background:var(--bg-2);border-bottom:1px solid var(--line)}
.site-header.is-scrolled .channel-bar{background:rgba(12,26,40,.55);border-bottom-color:transparent}
.channel-inner{
  display:flex;align-items:center;gap:8px;
  min-height:52px;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--muted);
  scroll-snap-align:start;white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.channel-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.channel-link.active{background:var(--primary);color:#062018;box-shadow:0 8px 20px rgba(22,224,163,.25)}
.channel-link.active:hover{background:#22f0b1;color:#062018}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:76px 0 68px;
  background-image:
    linear-gradient(104deg,#0A1420 6%,rgba(10,20,32,.90) 45%,rgba(10,20,32,.52) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;
  border:1px solid rgba(22,224,163,.10);border-radius:50%;
  box-shadow:0 0 0 60px rgba(22,224,163,.03),0 0 0 140px rgba(22,224,163,.02);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.25fr .95fr;gap:48px;align-items:center;
}
.crumb{font-size:13.5px;color:var(--dim);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb span{color:var(--dim);margin:0 8px}
.hero h1{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;line-height:1.25;letter-spacing:.01em;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{
  max-width:640px;color:var(--muted);font-size:17px;line-height:1.85;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-note{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13.5px;color:var(--dim)}

.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);
  padding:24px;
}
.dash-card h2{
  font-size:15px;font-weight:600;color:var(--muted);
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:18px;
}
.dash-card h2 .dot-live{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--primary);
}
.dot-live::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(22,224,163,.18);animation:pulse 1.9s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-item{
  background:rgba(18,33,47,.65);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px 16px 14px;
}
.stat-item b{
  display:block;font-family:var(--mono);font-size:26px;font-weight:700;
  color:var(--primary);letter-spacing:.01em;line-height:1.2;
}
.stat-item span{display:block;font-size:13.5px;color:var(--dim);margin-top:6px}
.dash-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--muted);
}

/* ---------- anchor pills ---------- */
.anchor-bar{
  background:var(--bg-2);
  border-bottom:1px solid var(--line);
  padding:16px 0;
}
.anchor-inner{
  display:flex;gap:10px;align-items:center;
  overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);font-size:14px;font-weight:600;
  transition:all .2s ease;
}
.anchor-inner a:hover{border-color:var(--primary-line);color:var(--primary);background:var(--primary-soft)}

/* ---------- sections ---------- */
.section{padding:88px 0;position:relative;z-index:1}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:820px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--primary);
  letter-spacing:.06em;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px;line-height:1.85;margin:0}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- capability cards ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cap-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  height:100%;
}
.cap-card:hover{transform:translateY(-4px);border-color:rgba(22,224,163,.28);box-shadow:var(--sh-hover)}
.cap-icon{
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;
  border:1px solid rgba(22,224,163,.20);margin-bottom:18px;
}
.cap-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.cap-card p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
.cap-card:hover h3{color:var(--primary)}

/* ---------- split media ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split.rev{grid-template-columns:.95fr 1.05fr}
.media-card{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);
  background:var(--card);box-shadow:var(--sh-card);position:relative;
}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--card);transition:transform .35s ease}
.media-card:hover img{transform:scale(1.03)}
.media-badge{
  position:absolute;left:16px;top:16px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(10,20,32,.72);backdrop-filter:blur(10px);
  border:1px solid rgba(22,224,163,.28);color:var(--primary);
  font-size:13px;font-weight:600;
}
.metric-list{margin-top:26px;display:grid;gap:14px}
.metric-item{
  display:flex;align-items:flex-start;gap:14px;
  background:rgba(18,33,47,.55);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;
  transition:border-color .2s ease,background-color .2s ease;
}
.metric-item:hover{border-color:rgba(22,224,163,.28);background:rgba(18,33,47,.85)}
.metric-item i{color:var(--primary);font-size:16px;margin-top:4px}
.metric-item h4{font-size:16px;font-weight:600;margin-bottom:4px}
.metric-item p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.75}
.num-amber{font-family:var(--mono);color:var(--amber);font-weight:700}

/* ---------- scenario ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.scene-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-card);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(22,224,163,.28);box-shadow:var(--sh-hover)}
.scene-idx{
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--primary);
  line-height:1;padding-top:4px;min-width:38px;
}
.scene-card h3{font-size:18.5px;font-weight:600;margin-bottom:8px}
.scene-card p{color:var(--muted);font-size:15px;margin:0 0 12px;line-height:1.8}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- steps ---------- */
.step-list{position:relative;padding-left:4px}
.step-list li{
  position:relative;padding:0 0 34px 68px;
}
.step-list li:last-child{padding-bottom:0}
.step-list li::before{
  content:"";position:absolute;left:22px;top:44px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(22,224,163,.45),rgba(22,224,163,.06));
}
.step-list li:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;
  width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:16px;font-weight:700;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(22,224,163,.24);
}
.step-list h3{font-size:19px;font-weight:600;margin-bottom:8px}
.step-list p{color:var(--muted);font-size:15.5px;margin:0;line-height:1.8}
.side-note h3{font-size:17px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-note h3 i{color:var(--primary)}
.note-list{display:grid;gap:12px}
.note-list li{
  font-size:14.5px;color:var(--muted);line-height:1.8;
  padding-left:18px;position:relative;
}
.note-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 3px rgba(22,224,163,.14);
}

/* ---------- proof band ---------- */
.proof{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-card);
}
.proof-item{text-align:center;position:relative}
.proof-item+.proof-item::before{
  content:"";position:absolute;left:-10px;top:12%;height:76%;width:1px;background:var(--line);
}
.proof-item b{
  display:block;font-family:var(--mono);font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;
}
.proof-item span{display:block;font-size:14px;color:var(--muted);margin-top:8px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;justify-content:center}

/* ---------- faq ---------- */
.faq-wrap{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);padding:12px 10px;
}
.faq-wrap .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-button{
  background:transparent;color:var(--text);
  font-size:16.5px;font-weight:600;
  padding:22px 22px 22px 26px;
  box-shadow:none;border-radius:0;
  position:relative;
}
.faq-wrap .accordion-button::before{
  content:"";position:absolute;left:10px;top:24px;bottom:24px;width:3px;
  border-radius:3px;background:var(--primary);opacity:0;transition:opacity .2s ease;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--primary)}
.faq-wrap .accordion-button:not(.collapsed)::before{opacity:1}
.faq-wrap .accordion-button::after{
  filter:invert(1) sepia(1) saturate(4) hue-rotate(110deg);
  opacity:.7;
}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary-line);outline-offset:-4px}
.faq-wrap .accordion-body{
  color:var(--muted);font-size:15.5px;line-height:1.85;
  padding:0 22px 24px 26px;max-width:820px;
}

/* ---------- cta ---------- */
.cta-band{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  background:
    linear-gradient(120deg,rgba(10,20,32,.94),rgba(10,20,32,.72)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:44px;
  box-shadow:var(--sh-card);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(255,138,61,.14);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-band p{color:var(--muted);margin-bottom:18px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.form-card{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);backdrop-filter:blur(18px);
  padding:26px;position:relative;z-index:2;
}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--dim);margin-bottom:18px}
.field{
  width:100%;background:rgba(10,20,32,.72);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:13px 16px;font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field::placeholder{color:var(--dim)}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,224,163,.16)}
.field.error{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,138,61,.16)}
.form-error{color:var(--amber);font-size:13.5px;margin-top:8px;min-height:20px}
.prefs{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0 20px}
.pref{
  position:relative;cursor:pointer;
}
.pref input{position:absolute;opacity:0;width:0;height:0}
.pref span{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--muted);font-size:13.5px;font-weight:600;
  transition:all .2s ease;
}
.pref input:checked+span{
  background:var(--primary-soft);border-color:var(--primary-line);color:var(--primary);
}
.pref input:focus-visible+span{outline:2px solid var(--primary);outline-offset:2px}
.form-note{font-size:13px;color:var(--dim);margin-top:12px}
.form-ok{color:var(--primary);font-size:13.5px;margin-top:8px;min-height:20px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  position:relative;z-index:1;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:repeating-linear-gradient(90deg,rgba(22,224,163,.35) 0 18px,transparent 18px 36px);
  opacity:.5;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:36px;
  padding-bottom:38px;
}
.footer-brand{display:inline-flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-about{color:var(--muted);font-size:14.5px;line-height:1.85;margin-bottom:12px;max-width:420px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li a,.footer-col p{color:var(--muted);font-size:14.5px;line-height:1.8}
.footer-col li a:hover{color:var(--primary)}
.footer-col p{margin-bottom:10px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--dim);font-size:13.5px;
}

/* ---------- back to top ---------- */
.totop{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#062018;border:none;cursor:pointer;
  box-shadow:0 0 0 1px rgba(22,224,163,.5) inset,0 12px 28px rgba(22,224,163,.28);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.totop.show{opacity:1;visibility:visible;transform:translateY(0)}
.totop:hover{background:#22f0b1}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split,.split.rev{grid-template-columns:1fr;gap:32px}
  .split.rev .media-card{order:-1}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .proof{grid-template-columns:repeat(2,1fr);gap:26px 20px}
  .proof-item:nth-child(3)::before{display:none}
  .scene-grid{grid-template-columns:1fr}
  .search-box input{width:110px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:48px 0}
  .brand-inner{min-height:64px;gap:12px}
  .brand-text{font-size:17px}
  .search-box{display:none}
  .btn-main,.btn-ghost{padding:13px 18px;font-size:14.5px}
  .brand-actions .btn-main{padding:11px 16px;font-size:14px}
  .hero{padding:44px 0 48px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center}
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat-item b{font-size:22px}
  .cap-grid{grid-template-columns:1fr}
  .channel-inner{min-height:48px;padding-right:8px;mask-image:linear-gradient(90deg,#000 86%,transparent)}
  .faq-wrap .accordion-button{font-size:15.5px;padding:18px 16px 18px 22px}
  .faq-wrap .accordion-body{padding:0 16px 20px 22px;font-size:15px}
  .step-list li{padding-left:58px}
  .step-num{width:38px;height:38px;border-radius:12px;font-size:14px}
  .step-list li::before{left:19px;top:38px}
  .proof{padding:24px 18px}
  .proof-item+.proof-item::before{display:none}
  .cta-band{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .totop{right:16px;bottom:18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .stat-grid{grid-template-columns:1fr}
  .scene-card{flex-direction:column;gap:12px}
  .scene-idx{min-width:auto}
  .proof{grid-template-columns:1fr;text-align:left}
  .proof-item{text-align:left}
}

/* roulang page: category4 */
:root{
  --brand:#16E0A3;
  --brand-soft:rgba(22,224,163,.12);
  --brand-line:rgba(22,224,163,.4);
  --amber:#FF8A3D;
  --amber-soft:rgba(255,138,61,.12);
  --bg-1:#0A1420;
  --bg-2:#0C1A28;
  --card:#12212F;
  --text:#E8F1F8;
  --text-2:#A7B8C8;
  --text-3:#6E8298;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.24);
  --glass:rgba(255,255,255,.05);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 28px rgba(0,0,0,.38);
  --shadow-hover:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(22,224,163,.55) inset, 0 10px 26px rgba(22,224,163,.25);
  --t:220ms ease-out;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:#5CF0C2;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#06231A;font-weight:700;font-size:15px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  box-shadow:var(--glow);transition:all var(--t);white-space:nowrap;
}
.btn-main:hover{transform:translateY(-2px);color:#06231A;filter:brightness(1.08);box-shadow:0 0 0 1px rgba(22,224,163,.7) inset,0 14px 32px rgba(22,224,163,.34);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--brand);font-weight:600;font-size:15px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid var(--brand-line);
  transition:all var(--t);white-space:nowrap;
}
.btn-ghost:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.btn-text i{transition:transform var(--t);}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(10,20,32,.92);transition:background var(--t),box-shadow var(--t),border-color var(--t);border-bottom:1px solid transparent;}
.site-header.scrolled{background:rgba(10,20,32,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 12px 30px rgba(0,0,0,.42);}
.brand-bar{height:70px;display:flex;align-items:center;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px;}
.brand-mark span{width:4px;border-radius:3px;background:var(--brand);display:block;}
.brand-mark span:nth-child(1){height:9px;opacity:.55;}
.brand-mark span:nth-child(2){height:15px;opacity:.78;}
.brand-mark span:nth-child(3){height:22px;}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:999px;padding:8px 16px;transition:all var(--t);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,224,163,.16);}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{background:transparent;border:0;outline:none;width:150px;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:var(--text-3);}
.channel-bar{border-top:1px solid var(--line);background:rgba(255,255,255,.02);}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  padding:13px 16px;font-size:15px;font-weight:600;color:var(--text-2);
  white-space:nowrap;transition:color var(--t);
}
.channel-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform var(--t);box-shadow:0 0 10px rgba(22,224,163,.7);
}
.channel-link:hover{color:var(--text);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{transform:scaleX(1);}

/* ============ 通用板块 ============ */
.section{padding:84px 0;}
.section-alt{background:var(--bg-2);}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(22,224,163,.22);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}
.lead{color:var(--text-2);}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:700;
  padding:4px 12px;border-radius:999px;
}
.badge-time{background:var(--amber-soft);color:var(--amber);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(90deg,rgba(10,20,32,.94) 0%,rgba(10,20,32,.78) 45%,rgba(10,20,32,.42) 100%),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat, var(--card);
  padding:72px 0 64px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 88% 12%,rgba(22,224,163,.16),transparent 46%);
  opacity:.9;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.crumb{font-size:13.5px;color:var(--text-3);margin-bottom:18px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{margin:0 8px;color:var(--text-3);}
.hero h1{font-size:clamp(28px,4.2vw,44px);font-weight:800;line-height:1.25;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{max-width:640px;color:var(--text-2);font-size:17px;margin-bottom:16px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.anchor-chip{
  font-size:14px;font-weight:600;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  padding:7px 15px;border-radius:999px;transition:all var(--t);
}
.anchor-chip:hover{color:var(--brand);border-color:var(--brand-line);background:var(--brand-soft);transform:translateY(-2px);}
.hero-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:26px;box-shadow:var(--shadow);
}
.hero-card h3{font-size:17px;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:9px;}
.hero-card h3 i{color:var(--brand);font-size:15px;}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.stat-item{border-left:2px solid rgba(22,224,163,.35);padding-left:14px;}
.stat-num{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-size:26px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:2px;}

/* ============ 支持能力卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:all var(--t);height:100%;
}
.info-card:hover{border-color:var(--brand-line);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.info-card .ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:19px;margin-bottom:18px;
}
.info-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.info-card p{color:var(--text-2);font-size:15px;margin:0 0 14px;}
.info-card ul li{color:var(--text-3);font-size:14px;padding-left:16px;position:relative;margin-bottom:6px;}
.info-card ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand);}

/* ============ 场景横条卡 ============ */
.scene-list{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.scene-card{
  display:flex;gap:20px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;transition:all var(--t);
}
.scene-card:hover{border-color:var(--brand-line);box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.scene-thumb{
  flex:0 0 150px;height:112px;border-radius:14px;overflow:hidden;background:var(--card);
}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.scene-card:hover .scene-thumb img{transform:scale(1.05);}
.scene-body h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.scene-body p{font-size:14.5px;color:var(--text-2);margin:0 0 10px;}

/* ============ 流程 + 表单 ============ */
.step-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;}
.step-item{position:relative;padding:0 0 34px 58px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:19px;top:42px;bottom:-4px;width:2px;
  background:linear-gradient(180deg,rgba(22,224,163,.5),rgba(22,224,163,.05));
}
.step-item:last-child::before{display:none;}
.step-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-size:18px;font-weight:700;
  color:var(--brand);background:rgba(22,224,163,.1);border:1px solid rgba(22,224,163,.3);
}
.step-item h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-item p{color:var(--text-2);font-size:15px;margin:0;}
.form-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:28px;box-shadow:var(--shadow);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.form-card .form-note{font-size:14px;color:var(--text-3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(10,20,32,.7);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;font-size:15px;outline:none;
  transition:all var(--t);color:var(--text);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,224,163,.15);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field textarea{resize:vertical;min-height:104px;}
.form-msg{font-size:13.5px;color:var(--amber);min-height:20px;margin-top:10px;}
.form-card .btn-main{width:100%;justify-content:center;margin-top:6px;}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:12px 26px;max-width:920px;margin:0 auto;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:22px 34px 22px 18px;font-size:17px;font-weight:600;color:var(--text);
  cursor:pointer;position:relative;transition:color var(--t);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity var(--t);
}
.faq-q::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--text-3);
  transition:transform var(--t),color var(--t);
}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(180deg);color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms ease;}
.faq-a p{padding:0 40px 22px 18px;margin:0;color:var(--text-2);font-size:15px;}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(115deg,rgba(22,224,163,.14),rgba(255,138,61,.07) 62%,rgba(255,255,255,.02)),
             var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,163,.18),transparent 68%);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px;position:relative;}
.cta-band p{color:var(--text-2);margin:0;max-width:620px;font-size:15.5px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;}
.contact-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px;}
.contact-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;gap:14px;align-items:flex-start;transition:all var(--t);
}
.contact-item:hover{border-color:var(--brand-line);transform:translateY(-3px);}
.contact-item i{color:var(--brand);font-size:18px;margin-top:5px;}
.contact-item h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.contact-item p{font-size:14px;color:var(--text-2);margin:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(22,224,163,.35) 0 14px,transparent 14px 28px);
  opacity:.4;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:var(--text);margin-bottom:18px;}
.footer-brand:hover{color:var(--text);}
.footer-about{font-size:14.5px;color:var(--text-3);line-height:1.9;margin-bottom:10px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--text-2);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-col p{font-size:14.5px;color:var(--text-2);margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:26px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--brand-line);background:rgba(22,224,163,.14);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;
  opacity:0;visibility:hidden;transition:all var(--t);z-index:900;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--brand);color:#06231A;box-shadow:0 10px 26px rgba(22,224,163,.35);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .card-grid{grid-template-columns:1fr 1fr;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .step-layout{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .scene-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px;}
  .contact-strip{grid-template-columns:1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .hero{padding:52px 0 46px;}
  .brand-actions .search-box{display:none;}
  .brand-text{font-size:17px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .stat-list{grid-template-columns:1fr 1fr;}
  .scene-card{flex-direction:column;}
  .scene-thumb{flex:none;width:100%;height:170px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-wrap{padding:6px 18px;}
  .faq-q{font-size:16px;padding-right:30px;}
  .faq-a p{padding-right:20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;}
  .stat-list{grid-template-columns:1fr;}
  .brand-actions .btn-main{padding:9px 14px;font-size:13.5px;}
  .anchor-row{gap:8px;}
  .anchor-chip{font-size:13px;padding:6px 12px;}
}