/* roulang page: index */
:root{
  --bg:#060a13;
  --bg-2:#0a1120;
  --panel:rgba(18,28,48,.70);
  --panel-soft:rgba(20,32,54,.55);
  --text:#eaf1fb;
  --muted:#93a6c4;
  --line:rgba(150,190,255,.14);
  --line-strong:rgba(51,225,210,.42);
  --orange:#ff8a2b;
  --orange-2:#ffb15c;
  --cyan:#33e1d2;
  --danger:#ff6b6b;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --max:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(255,138,43,.10), transparent 60%),
    radial-gradient(900px 560px at 88% 4%, rgba(51,225,210,.10), transparent 62%),
    var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:var(--orange-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{margin-bottom:32px;}
.section-head.center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--cyan);
  border:1px solid rgba(51,225,210,.28);
  background:rgba(51,225,210,.06);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}
h1{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.01em;}
h2{font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
h3{font-size:20px;font-weight:700;line-height:1.45;}
.lead{color:var(--muted);font-size:17px;line-height:1.9;}
.muted{color:var(--muted);}
.small{font-size:13.5px;color:var(--muted);}
.accent-o{color:var(--orange);}
.accent-c{color:var(--cyan);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,22,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.brand-bar{border-bottom:1px solid rgba(150,190,255,.08);}
.brand-row{
  display:flex;align-items:center;gap:18px;
  min-height:68px;
}
.logo{
  display:inline-flex;align-items:center;gap:12px;
  font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap;
}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:linear-gradient(135deg,var(--orange),#ff5f2e 55%,var(--cyan));
  display:inline-flex;align-items:center;justify-content:center;
  color:#08111f;font-size:16px;font-weight:900;
  box-shadow:0 8px 24px rgba(255,138,43,.30);
}
.nav-spacer{flex:1 1 auto;}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(12,20,36,.85);
  border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;min-width:240px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.header-search:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(51,225,210,.12);}
.header-search i{color:var(--muted);font-size:13px;}
.header-search input{
  background:transparent;border:0;outline:none;width:100%;font-size:14px;
}
.header-search input::placeholder{color:rgba(147,166,196,.75);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;padding:0 20px;height:46px;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),#ff6a1f);
  color:#141017;
  box-shadow:0 10px 28px rgba(255,122,24,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,138,43,.45);color:#141017;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--cyan);transform:translateY(-2px);}
.btn-lg{height:52px;padding:0 26px;font-size:16px;}
.btn-block{width:100%;}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text);font-size:17px;
}
.burger:hover{border-color:var(--line-strong);color:var(--cyan);}

.channel-bar{overflow:hidden;}
.channel-row{
  display:flex;align-items:center;gap:6px;
  min-height:50px;overflow-x:auto;scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;padding:14px 16px 15px;
  font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;
}
.channel-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--orange),var(--cyan));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.channel-link:hover{color:var(--text);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.active{color:var(--text);}
.channel-link.active::after{transform:scaleX(1);}
.channel-link .dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);margin-left:8px;vertical-align:middle;
  box-shadow:0 0 10px rgba(51,225,210,.9);
}

.drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(8,13,24,.97);padding:14px 20px 22px;
}
.drawer.open{display:block;}
.drawer-title{font-size:13px;letter-spacing:.14em;color:var(--muted);margin:10px 0 8px;}
.drawer a{
  display:block;padding:12px 4px;font-size:17px;font-weight:700;
  border-bottom:1px solid rgba(150,190,255,.08);
}
.drawer .btn{margin-top:16px;width:100%;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.44;
}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,10,19,.72),rgba(6,10,19,.94)),
    linear-gradient(90deg,rgba(6,10,19,.92),rgba(6,10,19,.45));
}
.hero-grid{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(150,190,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(150,190,255,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 70% at 60% 40%,#000,transparent 85%);
  -webkit-mask-image:radial-gradient(70% 70% at 60% 40%,#000,transparent 85%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  padding:92px 0 84px;
}
.hero h1{margin:14px 0 18px;}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--orange),var(--orange-2) 55%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:620px;font-size:17px;color:#c3d1e6;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:38px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats div strong{
  display:block;font-size:24px;font-weight:800;color:var(--orange-2);
  font-variant-numeric:tabular-nums;
}
.hero-stats div span{font-size:13.5px;color:var(--muted);}
.hero-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:20px;
  padding:26px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.hero-panel h3{font-size:18px;margin-bottom:6px;}
.hero-search{
  display:flex;gap:10px;margin:18px 0 20px;
}
.hero-search input{
  flex:1 1 auto;min-width:0;height:46px;border-radius:12px;
  background:rgba(9,15,28,.9);border:1px solid var(--line);
  padding:0 14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.hero-search input:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(51,225,210,.12);}
.quick-list li+li{margin-top:10px;}
.quick-list a{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:14px;
  background:var(--panel-soft);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.quick-list a:hover{transform:translateX(4px);border-color:var(--line-strong);background:rgba(51,225,210,.07);}
.quick-list i{color:var(--cyan);width:18px;text-align:center;}
.quick-list strong{display:block;font-size:15px;font-weight:700;}
.quick-list em{font-style:normal;font-size:13px;color:var(--muted);}

/* ===== 服务区 ===== */
.services-layout{
  display:grid;grid-template-columns:1.35fr 1fr;gap:24px;
}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,138,43,.42);}
.card-body{padding:26px;}
.card-lg .card-media{position:relative;overflow:hidden;border-radius:16px 16px 0 0;}
.card-lg .card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.card-lg:hover .card-media img{transform:scale(1.03);}
.card-lg .card-body h3{font-size:24px;margin:12px 0 10px;}
.card-stack{display:grid;gap:24px;}
.card-sm .card-body{padding:22px;}
.card-sm i.ico{color:var(--cyan);font-size:20px;}
.card-sm h3{margin:10px 0 8px;font-size:19px;}
.ribbon{
  margin-top:24px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(255,138,43,.08),rgba(51,225,210,.06));
  overflow:hidden;
}
.ribbon div{
  padding:22px 24px;border-right:1px solid var(--line);
}
.ribbon div:last-child{border-right:0;}
.ribbon strong{display:block;font-size:16px;font-weight:700;margin-bottom:6px;}
.ribbon span{font-size:13.5px;color:var(--muted);}
.card-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;color:var(--orange-2);margin-top:16px;}
.card-link i{transition:transform .2s ease;}
.card-link:hover i{transform:translateX(4px);}

/* ===== 数据区 ===== */
.stats-band{
  background:
    radial-gradient(700px 340px at 20% 0%,rgba(255,138,43,.10),transparent 70%),
    linear-gradient(180deg,rgba(10,17,32,.9),rgba(8,13,24,.6));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat-card{
  padding:28px 24px;border-radius:var(--radius);
  background:var(--panel-soft);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.stat-card .num{
  font-size:38px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  color:var(--orange-2);text-shadow:0 0 26px rgba(255,138,43,.35);
}
.stat-card .num span{font-size:18px;margin-left:4px;color:var(--muted);text-shadow:none;}
.stat-card p{margin-top:10px;font-size:15px;color:#c3d1e6;}
.stat-card em{display:block;font-style:normal;font-size:13.5px;color:var(--muted);margin-top:6px;}

/* ===== 专题/案例 ===== */
.feature-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;
  padding:28px;border-radius:20px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.feature-row+.feature-row{margin-top:26px;}
.feature-row.reverse{grid-template-columns:.95fr 1.05fr;}
.feature-row.reverse .feature-media{order:2;}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;}
.feature-body h3{font-size:26px;margin:14px 0 12px;}
.feature-body p{color:var(--muted);}
.feature-points{margin:18px 0 6px;}
.feature-points li{position:relative;padding-left:22px;font-size:15px;color:#c3d1e6;margin-top:8px;}
.feature-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--orange),var(--cyan));
}
.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(51,225,210,.35);color:var(--cyan);
  background:rgba(51,225,210,.08);
}
.badge.orange{border-color:rgba(255,138,43,.4);color:var(--orange-2);background:rgba(255,138,43,.1);}

/* ===== 资讯列表（CMS） ===== */
.news-toolbar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.03);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover,.tag.current{border-color:rgba(255,138,43,.5);color:var(--orange-2);background:rgba(255,138,43,.09);}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(51,225,210,.42);}
.news-card .thumb{overflow:hidden;}
.news-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .thumb img{transform:scale(1.03);}
.news-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-card h3{font-size:18px;margin:12px 0 10px;}
.news-card:hover h3{color:var(--orange-2);}
.news-card p{font-size:14.5px;color:var(--muted);flex:1 1 auto;}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--panel-soft);color:var(--muted);
}

/* ===== 方案/入口频道区 ===== */
.entry-block{
  background:linear-gradient(180deg,rgba(10,17,32,.85),rgba(6,10,19,.4));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.entry-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start;}
.entry-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.entry-card{
  padding:24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(255,138,43,.45);background:rgba(255,138,43,.06);}
.entry-card i{font-size:20px;color:var(--orange);}
.entry-card h3{font-size:19px;margin:12px 0 8px;}
.entry-card p{font-size:14.5px;color:var(--muted);}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:960px;margin:0 auto;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .22s ease;
}
.faq-item.open{border-color:rgba(51,225,210,.42);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:18px;font-weight:700;color:var(--text);
}
.faq-q:hover{color:var(--orange-2);}
.faq-q i{color:var(--cyan);transition:transform .22s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
}
.faq-a p{
  padding:0 24px 22px;font-size:15px;color:var(--muted);
  border-top:1px solid rgba(150,190,255,.1);padding-top:16px;margin:0 24px 0;
  padding-left:0;padding-right:0;
}

/* ===== 联系区 ===== */
.contact-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;}
.form-card{padding:30px;border-radius:20px;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:#c3d1e6;}
.field input,.field select,.field textarea{
  width:100%;border-radius:12px;padding:12px 14px;
  background:rgba(9,15,28,.9);border:1px solid var(--line);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(51,225,210,.12);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(147,166,196,.6);}
.field .err{display:none;font-size:13px;color:var(--danger);margin-top:6px;}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:rgba(255,107,107,.6);}
.field.invalid .err{display:block;}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;border-radius:12px;font-size:14.5px;
  border:1px solid rgba(51,225,210,.4);background:rgba(51,225,210,.09);color:#c7fff8;
}
.form-ok.show{display:block;}
.contact-side{display:grid;gap:20px;align-content:start;}
.info-card{
  padding:24px;border-radius:var(--radius);
  background:var(--panel-soft);border:1px solid var(--line);
}
.info-card h3{font-size:18px;margin-bottom:12px;}
.info-card li{display:flex;gap:12px;font-size:14.5px;color:var(--muted);margin-top:10px;}
.info-card i{color:var(--orange);width:18px;text-align:center;margin-top:4px;}

/* ===== CTA 条 ===== */
.cta-band{
  border-radius:20px;padding:34px 36px;
  background:linear-gradient(120deg,rgba(255,138,43,.14),rgba(51,225,210,.10));
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band h3{font-size:22px;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(9,15,28,.9),rgba(5,9,17,.98));
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  padding:64px 0 40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--muted);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#c3d1e6;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--orange-2);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:68px 0 60px;}
  .services-layout{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ribbon{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ribbon div:nth-child(2){border-right:0;}
  .ribbon div:nth-child(1),.ribbon div:nth-child(2){border-bottom:1px solid var(--line);}
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;}
  .feature-row.reverse .feature-media{order:0;}
  .entry-layout{grid-template-columns:1fr;gap:28px;}
  .contact-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:48px 0 32px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .header-search{display:none;}
}
@media (max-width:768px){
  .brand-row .btn-primary{display:none;}
  .burger{display:inline-flex;align-items:center;justify-content:center;}
  .channel-bar{display:none;}
  .hero-stats{gap:22px;}
  .stat-card .num{font-size:32px;}
  .cta-band{padding:26px 22px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .section{padding:54px 0;}
  .container{padding:0 16px;}
  .news-grid{grid-template-columns:1fr;}
  .entry-cards{grid-template-columns:1fr;}
  .ribbon{grid-template-columns:1fr;}
  .ribbon div{border-right:0;border-bottom:1px solid var(--line);}
  .ribbon div:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .hero-search{flex-direction:column;}
  .hero-search .btn{width:100%;}
  .faq-q{font-size:16.5px;padding:16px 18px;}
  .faq-a p{margin:0 18px;}
  .form-card{padding:22px;}
}

/* roulang page: article */
:root{
  --bg-base:#060a16;
  --bg-deep:#04070f;
  --bg-soft:#0a1122;
  --panel:rgba(18,26,48,.70);
  --panel-soft:rgba(14,21,40,.55);
  --panel-strong:rgba(22,32,58,.86);
  --text:#e9eefb;
  --text-strong:#f7f9ff;
  --muted:#96a4c6;
  --muted-2:#7b8aab;
  --orange:#ff8a1f;
  --orange-2:#ffb547;
  --orange-deep:#e5700b;
  --cyan:#35e6ff;
  --cyan-soft:rgba(53,230,255,.55);
  --border:rgba(122,170,255,.16);
  --border-strong:rgba(122,190,255,.34);
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.30);
  --glow-orange:0 0 0 1px rgba(255,138,31,.35),0 12px 34px rgba(255,138,31,.28);
  --glow-cyan:0 0 0 1px rgba(53,230,255,.35),0 12px 34px rgba(53,230,255,.16);
  --max:1200px;
  --nav-h:66px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(53,230,255,.10), transparent 62%),
    radial-gradient(900px 560px at 88% 4%, rgba(255,138,31,.10), transparent 60%),
    var(--bg-base);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  min-height:100%;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--orange-2)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text-strong);font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 顶部阅读进度 */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--orange),var(--cyan));z-index:1200;box-shadow:0 0 12px rgba(53,230,255,.6)}

/* 头部 */
.site-header{position:sticky;top:0;z-index:1100;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);background:rgba(7,11,24,.78);border-bottom:1px solid var(--border)}
.brand-bar{border-bottom:1px solid rgba(122,170,255,.10)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:12px;font-weight:800;font-size:18px;color:var(--text-strong);white-space:nowrap}
.logo:hover{color:var(--text-strong)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:linear-gradient(140deg,var(--orange),var(--orange-deep));color:#1a0d02;font-weight:900;font-size:18px;box-shadow:0 8px 22px rgba(255,138,31,.34)}
.brand-actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;padding:0 14px;height:42px;border-radius:var(--radius-pill);background:var(--panel-soft);border:1px solid var(--border);min-width:250px}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{background:transparent;border:0;outline:none;width:100%;font-size:14px;color:var(--text)}
.nav-search input::placeholder{color:var(--muted-2)}
.nav-search:focus-within{border-color:var(--cyan-soft);box-shadow:0 0 0 3px rgba(53,230,255,.12)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-pill);font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .2s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,var(--orange),var(--orange-2));color:#221000;box-shadow:0 10px 26px rgba(255,138,31,.30)}
.btn-primary:hover{transform:translateY(-2px);color:#221000;box-shadow:var(--glow-orange)}
.btn-ghost{background:rgba(15,24,44,.55);border-color:var(--border-strong);color:var(--text)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan-soft);color:var(--cyan);box-shadow:var(--glow-cyan)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--panel-soft);border:1px solid var(--border);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 频道行 */
.channel-bar{background:rgba(9,14,28,.62)}
.channel-row{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:0 16px;height:52px;font-size:15px;font-weight:600;color:var(--muted);white-space:nowrap;border-bottom:2px solid transparent}
.channel-link:hover{color:var(--text-strong)}
.channel-link:hover::after{content:"";position:absolute;left:16px;right:16px;bottom:14px;height:2px;border-radius:2px;background:var(--cyan);opacity:.6}
.channel-link.active{color:var(--text-strong)}
.channel-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--orange),var(--orange-2));box-shadow:0 0 14px rgba(255,138,31,.8)}
.channel-link .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.mobile-drawer{display:none;padding:14px 0 22px;border-top:1px solid var(--border);background:rgba(8,13,26,.96)}
.mobile-drawer.open{display:block}
.mobile-drawer .drawer-title{font-size:13px;letter-spacing:.18em;color:var(--muted-2);margin:6px 0 10px}
.mobile-drawer a{display:block;padding:13px 16px;border-radius:var(--radius-sm);font-size:17px;font-weight:700;color:var(--text);background:var(--panel-soft);border:1px solid var(--border);margin-bottom:10px}
.mobile-drawer a:hover{border-color:var(--cyan-soft);color:var(--cyan)}

/* 内页 banner */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);background-image:linear-gradient(180deg,rgba(6,10,22,.72),rgba(6,10,22,.94)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;padding:44px 0 40px}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(122,170,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(122,170,255,.055) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted-2);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{opacity:.45}
.crumb .current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;background:rgba(53,230,255,.10);border:1px solid rgba(53,230,255,.32);color:var(--cyan)}
.tag.tag-orange{background:rgba(255,138,31,.12);border-color:rgba(255,138,31,.34);color:var(--orange-2)}
.article-h1{font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.22;letter-spacing:-.02em;max-width:960px}
.meta-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;font-size:14px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--cyan);font-size:13px}

/* 主体布局 */
.page-body{padding:56px 0 84px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:40px;align-items:start}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.article-main{padding:38px 40px}
.article-body{max-width:100%;font-size:17px;line-height:1.9;color:#dde5f7}
.article-body > * + *{margin-top:1.15em}
.article-body p{color:#dde5f7}
.article-body h2{font-size:clamp(21px,2.4vw,28px);margin-top:1.9em;padding-left:14px;border-left:3px solid var(--orange);color:var(--text-strong)}
.article-body h3{font-size:20px;margin-top:1.6em;color:var(--text-strong)}
.article-body h4{font-size:17px;margin-top:1.4em;color:var(--orange-2)}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(53,230,255,.38)}
.article-body a:hover{color:var(--orange-2);border-color:rgba(255,138,31,.5)}
.article-body ul,.article-body ol{padding-left:1.35em}
.article-body ul li{list-style:none;position:relative;padding-left:18px;margin:.5em 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(53,230,255,.7)}
.article-body ol{counter-reset:li}
.article-body ol li{list-style:none;position:relative;padding-left:30px;margin:.55em 0;counter-increment:li}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:.18em;width:21px;height:21px;border-radius:7px;background:rgba(255,138,31,.15);border:1px solid rgba(255,138,31,.35);color:var(--orange-2);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:rgba(53,230,255,.07);border-left:3px solid var(--cyan);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#cfe6f5}
.article-body img{border-radius:var(--radius-sm);margin:1.6em auto;box-shadow:var(--shadow-soft)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--muted-2);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.7em 0;overflow:hidden;border-radius:var(--radius-sm)}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--border);text-align:left}
.article-body th{background:rgba(53,230,255,.09);color:var(--text-strong);font-weight:700}
.article-body tr:nth-child(even) td{background:rgba(12,19,36,.5)}
.article-body pre{background:rgba(5,9,20,.86);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;color:#c8e6ff}
.article-body code{font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:.92em;background:rgba(53,230,255,.10);border:1px solid rgba(53,230,255,.2);border-radius:6px;padding:2px 6px;color:#9fe9ff}
.article-body pre code{background:none;border:0;padding:0;color:inherit}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-strong),transparent);margin:2.4em 0}

/* 空态 */
.empty-state{padding:64px 20px;text-align:center}
.empty-state .ico{width:66px;height:66px;margin:0 auto 20px;border-radius:20px;display:flex;align-items:center;justify-content:center;background:rgba(255,138,31,.12);border:1px solid rgba(255,138,31,.3);color:var(--orange-2);font-size:26px}
.empty-state h2{font-size:24px;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:26px}

/* 侧栏 */
.side{display:grid;gap:22px;position:sticky;top:96px}
.side-card{padding:24px 22px}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--cyan);font-size:14px}
.toc-list li{margin-bottom:10px}
.toc-list a{display:block;font-size:14px;color:var(--muted);padding-left:12px;border-left:2px solid rgba(122,170,255,.18);line-height:1.6}
.toc-list a:hover{color:var(--cyan);border-color:var(--cyan)}
.toc-list li.lv3 a{padding-left:24px;font-size:13px}
.toc-list a.active{color:var(--orange-2);border-color:var(--orange)}
.side-links li + li{margin-top:10px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:var(--radius-sm);background:rgba(12,19,36,.5);border:1px solid var(--border);font-size:14px;font-weight:600;color:var(--text)}
.side-links a:hover{border-color:var(--cyan-soft);color:var(--cyan)}
.side-links a i{font-size:12px;color:var(--muted-2)}
.side-cta{background:linear-gradient(150deg,rgba(255,138,31,.16),rgba(53,230,255,.10));border:1px solid rgba(255,138,31,.28)}
.side-cta p{font-size:14px;color:#e4d9c9;margin-bottom:16px;line-height:1.75}

/* 相关推荐 */
.related{margin-top:44px}
.sec-head{margin-bottom:26px}
.sec-head h2{font-size:clamp(22px,2.8vw,30px)}
.sec-head p{color:var(--muted);font-size:15px;margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);border-color:rgba(255,138,31,.5);box-shadow:0 22px 56px rgba(0,0,0,.5)}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-badge{position:absolute;left:12px;top:12px;padding:4px 11px;border-radius:var(--radius-pill);font-size:12px;font-weight:700;background:rgba(8,13,26,.8);border:1px solid rgba(53,230,255,.35);color:var(--cyan);backdrop-filter:blur(8px)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;transition:color .2s ease}
.card:hover .card-body h3{color:var(--orange-2)}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7}
.card-meta{margin-top:auto;display:flex;gap:14px;font-size:12.5px;color:var(--muted-2)}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.card-link{position:absolute;inset:0;z-index:3}

/* 页尾 CTA 条 */
.cta-bar{margin-top:46px;padding:30px 34px;border-radius:var(--radius);background:linear-gradient(120deg,rgba(255,138,31,.16),rgba(53,230,255,.10));border:1px solid rgba(255,138,31,.26);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;box-shadow:var(--shadow)}
.cta-bar h3{font-size:20px;margin-bottom:6px}
.cta-bar p{color:#dfe6f6;font-size:14.5px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{margin-top:0;border-top:1px solid var(--border);background:linear-gradient(180deg,rgba(6,10,22,.6),rgba(4,7,15,.96));padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-strong)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--cyan)}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:var(--muted-2)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a{color:var(--muted-2)}
.footer-bottom .links a:hover{color:var(--cyan)}

@media (max-width:1100px){
  .layout{grid-template-columns:1fr;gap:30px}
  .side{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1000px){
  .nav-search{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:820px){
  .nav-toggle{display:flex}
  .brand-actions .btn-primary{display:none}
  .article-main{padding:26px 22px}
  .article-body{font-size:16.5px;line-height:1.88}
  .page-body{padding:40px 0 68px}
  .cta-bar{padding:24px 22px}
}
@media (max-width:640px){
  .brand-row{min-height:60px}
  .logo{font-size:16px}
  .logo-mark{width:32px;height:32px;font-size:16px}
  .article-h1{font-size:26px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .crumb .current{max-width:200px}
  .cta-actions .btn{width:100%}
  .back-row .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#070b16;
  --bg-soft:#0a1020;
  --panel:rgba(18,28,50,.68);
  --panel-strong:rgba(13,21,40,.88);
  --line:rgba(150,190,255,.16);
  --line-cyan:rgba(63,227,255,.40);
  --line-orange:rgba(255,138,31,.45);
  --text:#eaf1ff;
  --text-dim:#9fb0cd;
  --text-mute:#7488a8;
  --orange:#ff8a1f;
  --orange-deep:#ff6400;
  --cyan:#3fe3ff;
  --cyan-soft:rgba(63,227,255,.14);
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:22px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.28);
  --container:1240px;
  --gap:24px;
  --section:clamp(46px,6.4vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(63,227,255,.10), transparent 62%),
    radial-gradient(760px 480px at 92% 6%, rgba(255,138,31,.10), transparent 60%),
    linear-gradient(180deg,#070b16 0%,#080d1c 48%,#060a13 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,170,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
  z-index:-1;
  pointer-events:none;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#8df0ff}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{color:#fff;margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(255,138,31,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:var(--section) 0}
.section-tight{padding:clamp(34px,4.4vw,64px) 0}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(7,11,22,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.01em}
.logo:hover{color:#fff}
.logo-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:19px;font-weight:800;color:#150a00;background:linear-gradient(135deg,var(--orange),#ffb257);box-shadow:0 8px 22px rgba(255,138,31,.34)}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;padding:7px 14px;min-width:230px}
.search-box i{color:var(--cyan);font-size:13px}
.search-box input{background:transparent;border:0;color:var(--text);outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:var(--text-mute)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:0 20px;height:44px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-deep));color:#1a0c00;box-shadow:0 10px 26px rgba(255,120,20,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,138,31,.48);color:#1a0c00}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-cyan);background:rgba(63,227,255,.10);color:#fff;transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 15px;font-size:14px}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center;font-size:17px;cursor:pointer}
.hamburger:hover{border-color:var(--line-cyan);color:var(--cyan)}

.channel-bar{border-top:1px solid rgba(150,190,255,.08);background:rgba(9,14,28,.62)}
.channel-row{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;gap:7px;padding:14px 15px;font-size:15px;font-weight:600;color:var(--text-dim);white-space:nowrap;border-bottom:2px solid transparent}
.channel-link:hover{color:#fff}
.channel-link:hover::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;border-radius:2px;background:var(--cyan);transform:translateX(-50%)}
.channel-link.active{color:#fff;border-bottom-color:var(--orange)}
.channel-link .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);box-shadow:0 0 10px rgba(255,138,31,.9);display:inline-block}

.drawer{display:none;border-top:1px solid var(--line);background:var(--panel-strong);backdrop-filter:blur(16px);padding:16px 0 22px}
.drawer.open{display:block}
.drawer h5{margin:6px 0 10px;font-size:13px;color:var(--text-mute);letter-spacing:.14em;font-weight:600}
.drawer a{display:block;padding:12px 14px;border-radius:12px;font-size:17px;font-weight:700;color:var(--text);border:1px solid transparent}
.drawer a:hover,.drawer a.active{background:rgba(255,138,31,.12);border-color:var(--line-orange);color:#fff}

/* ===== breadcrumb ===== */
.crumb-wrap{border-bottom:1px solid rgba(150,190,255,.08);background:rgba(9,14,28,.45)}
.crumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;padding:13px 0;font-size:13.5px;color:var(--text-mute)}
.crumb a{color:var(--text-dim)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(150,190,255,.32)}
.crumb .current{color:var(--text)}

/* ===== hero ===== */
.page-hero{position:relative;overflow:hidden;padding:clamp(48px,6vw,86px) 0 clamp(40px,5vw,66px);border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,11,22,.94) 8%,rgba(7,11,22,.70) 52%,rgba(7,11,22,.42) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;z-index:-1}
.page-hero::after{content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(63,227,255,.16),transparent 68%);z-index:-1}
.hero-inner{max-width:820px}
.tag-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;color:var(--cyan);background:var(--cyan-soft);border:1px solid rgba(63,227,255,.30);margin-bottom:20px}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.16}
.hero-sub{margin-top:20px;font-size:clamp(15.5px,1.6vw,18px);color:var(--text-dim);line-height:1.9;max-width:720px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.stat-chip{display:flex;flex-direction:column;gap:2px;padding:12px 20px;border-radius:14px;background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(14px);min-width:132px}
.stat-chip strong{font-size:22px;font-weight:800;color:var(--orange);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-chip span{font-size:12.5px;color:var(--text-mute)}

/* ===== quick bar ===== */
.quick-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:-28px;position:relative;z-index:5;box-shadow:var(--shadow)}
.quick-item{background:rgba(11,18,36,.92);padding:20px 22px;display:flex;gap:13px;align-items:flex-start}
.quick-item i{color:var(--cyan);font-size:17px;margin-top:5px}
.quick-item h3{font-size:15.5px;font-weight:700;margin-bottom:5px}
.quick-item p{font-size:13px;color:var(--text-mute);line-height:1.7}

/* ===== section head ===== */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(25px,3.2vw,38px);font-weight:800;line-height:1.25}
.sec-head p{margin-top:12px;color:var(--text-dim);font-size:15.5px;max-width:680px}
.sec-eyebrow{display:block;font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--orange);margin-bottom:12px}

/* ===== layout ===== */
.cat-layout{display:grid;grid-template-columns:268px minmax(0,1fr);gap:34px;align-items:start}
.side-panel{position:sticky;top:158px;display:grid;gap:20px}
.filter-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;backdrop-filter:blur(16px);box-shadow:var(--shadow-soft)}
.filter-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.filter-card h3 i{color:var(--cyan);font-size:14px}
.filter-list{display:flex;flex-direction:column;gap:6px}
.filter-list a{display:flex;align-items:center;justify-content:space-between;padding:10px 13px;border-radius:10px;font-size:14.5px;color:var(--text-dim);border:1px solid transparent;transition:.2s ease}
.filter-list a:hover{background:rgba(255,255,255,.05);color:#fff;border-color:var(--line)}
.filter-list a.is-active{background:rgba(255,138,31,.14);border-color:var(--line-orange);color:#fff;font-weight:700}
.filter-list a span{font-size:12px;color:var(--text-mute)}
.filter-list a.is-active span{color:var(--orange)}
.side-note{background:linear-gradient(160deg,rgba(63,227,255,.10),rgba(18,28,50,.72));border:1px solid rgba(63,227,255,.24);border-radius:var(--radius);padding:20px;backdrop-filter:blur(14px)}
.side-note h4{font-size:15px;margin-bottom:10px}
.side-note p{font-size:13.5px;color:var(--text-dim);line-height:1.8}
.side-note a{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:700}

/* ===== cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.entry-card{position:relative;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;backdrop-filter:blur(16px);box-shadow:var(--shadow-soft);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.entry-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:0 22px 54px rgba(0,0,0,.5)}
.entry-card:hover h3{color:var(--orange)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0b1224}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;opacity:.9}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.05) 40%,rgba(7,11,22,.78) 100%)}
.badge{position:absolute;left:12px;top:12px;z-index:2;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(7,11,22,.72);border:1px solid var(--line-orange);color:var(--orange);backdrop-filter:blur(8px)}
.entry-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:11px;flex:1}
.entry-body h3{font-size:19px;font-weight:700;line-height:1.45;transition:color .2s ease}
.entry-body p{font-size:14.5px;color:var(--text-dim);line-height:1.8}
.entry-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--text-mute);margin-top:auto;padding-top:6px}
.entry-meta i{color:var(--cyan);font-size:12px;margin-right:5px}
.entry-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--cyan);margin-top:4px}
.entry-link i{transition:transform .2s ease}
.entry-card:hover .entry-link i{transform:translateX(4px)}
.card-overlay{position:absolute;inset:0;z-index:3;font-size:0;text-indent:-9999px}

/* ===== flow ===== */
.flow-wrap{background:linear-gradient(180deg,rgba(11,18,36,.72),rgba(9,14,28,.36));border-top:1px solid rgba(150,190,255,.08);border-bottom:1px solid rgba(150,190,255,.08)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:flow}
.flow-item{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;backdrop-filter:blur(14px);transition:transform .22s ease,border-color .22s ease}
.flow-item:hover{transform:translateY(-4px);border-color:var(--line-cyan)}
.flow-no{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-weight:800;font-size:15px;color:#150a00;background:linear-gradient(135deg,var(--cyan),#7ef0ff);margin-bottom:16px;font-variant-numeric:tabular-nums}
.flow-item h3{font-size:17px;margin-bottom:9px}
.flow-item p{font-size:14px;color:var(--text-dim);line-height:1.8}
.flow-item::after{content:"";position:absolute;right:-13px;top:40px;width:26px;height:1px;background:linear-gradient(90deg,var(--line-cyan),transparent)}
.flow-item:last-child::after{display:none}

/* ===== faq ===== */
.faq-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;max-width:940px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);backdrop-filter:blur(14px);overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:var(--line-orange)}
.faq-q{width:100%;background:transparent;border:0;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 22px;font-size:17px;font-weight:700;text-align:left;cursor:pointer;transition:color .2s ease}
.faq-q:hover{color:var(--orange)}
.faq-q i{color:var(--cyan);font-size:14px;transition:transform .22s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg);color:var(--orange)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--text-dim);line-height:1.85;border-top:1px solid rgba(150,190,255,.10);padding-top:16px;margin:0 22px 20px;padding-left:0;padding-right:0}

/* ===== cta banner ===== */
.cta-banner{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line-orange);background:linear-gradient(120deg,rgba(255,138,31,.16),rgba(63,227,255,.10)),var(--panel-strong);backdrop-filter:blur(16px);padding:clamp(32px,4vw,54px);display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;box-shadow:var(--shadow)}
.cta-banner::after{content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(255,138,31,.22),transparent 68%)}
.cta-banner h2{font-size:clamp(23px,2.9vw,32px);font-weight:800;margin-bottom:12px}
.cta-banner p{color:var(--text-dim);font-size:15px;max-width:580px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ===== footer ===== */
.site-footer{margin-top:var(--section);background:linear-gradient(180deg,rgba(9,14,28,.6),rgba(6,10,19,.96));border-top:1px solid var(--line);padding:clamp(44px,5vw,70px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-mute);line-height:1.85;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-dim)}
.footer-col a:hover{color:var(--cyan);padding-left:3px}
.footer-bottom{margin-top:44px;padding:20px 0 28px;border-top:1px solid rgba(150,190,255,.10);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer-bottom span{font-size:13px;color:var(--text-mute)}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{font-size:13px;color:var(--text-mute)}
.footer-bottom .links a:hover{color:var(--cyan)}

/* ===== responsive ===== */
@media screen and (max-width:1024px){
  .cat-layout{grid-template-columns:1fr;gap:26px}
  .side-panel{position:static;grid-template-columns:1fr 1fr}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-item::after{display:none}
  .quick-bar{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:860px){
  .search-box{display:none}
  .brand-actions .btn-primary{display:none}
  .hamburger{display:inline-flex}
}
@media screen and (max-width:768px){
  body{font-size:16px}
  .page-hero{padding-top:44px}
  .section{padding:clamp(38px,9vw,56px) 0}
  .card-grid{grid-template-columns:1fr}
  .side-panel{grid-template-columns:1fr}
  .cta-banner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .hero-stats .stat-chip{flex:1 1 44%}
}
@media screen and (max-width:520px){
  .quick-bar{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-bar{min-height:64px}
  .logo{font-size:16.5px}
  .logo-mark{width:34px;height:34px;font-size:17px}
  .btn{width:100%}
  .brand-actions{width:auto}
  .hamburger{width:42px;height:42px}
  .entry-body{padding:18px}
}

/* roulang page: category2 */
:root{
  --bg:#05070e;
  --bg-soft:#080d19;
  --panel:rgba(17,26,46,.68);
  --panel-strong:rgba(12,20,37,.84);
  --line:rgba(150,190,235,.16);
  --line-strong:rgba(120,220,255,.38);
  --text:#e9eefb;
  --muted:#93a4c2;
  --orange:#ff8a1f;
  --orange-2:#ffbd6b;
  --cyan:#3fe3ff;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-hover:0 24px 60px rgba(0,0,0,.5);
  --maxw:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 10% -12%, rgba(63,227,255,.10), transparent 62%),
    radial-gradient(900px 520px at 96% 2%, rgba(255,138,31,.13), transparent 58%),
    var(--bg);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;color:#fff}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .24s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#2a1201;box-shadow:0 10px 26px rgba(255,138,31,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,138,31,.42);color:#2a1201}
.btn-ghost{background:rgba(255,255,255,.045);border-color:var(--line);color:var(--text);backdrop-filter:blur(10px)}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(63,227,255,.09);color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;
}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:rgba(5,9,18,.74);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;gap:16px;height:70px}
.logo{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:.2px;color:#fff}
.logo-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--orange),#ffd79a);color:#2a1201;font-weight:900;font-size:18px;
  box-shadow:0 8px 20px rgba(255,138,31,.35);
}
.logo:hover{color:#fff}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:9px;height:42px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);min-width:230px;
  transition:border-color .2s ease,background-color .2s ease;
}
.search-box:focus-within{border-color:var(--line-strong);background:rgba(63,227,255,.08)}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:14px}
.search-box input::placeholder{color:#7e8fa9}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-strong);color:#fff}
.channel-bar{border-top:1px solid rgba(150,190,235,.09);background:rgba(8,13,25,.55)}
.channel-row{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:13px 15px;font-size:15px;color:var(--muted);white-space:nowrap;
}
.channel-link:hover{color:#fff}
.channel-link:hover::after{content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;background:var(--cyan);opacity:.6}
.channel-link.active{color:#fff;font-weight:700}
.channel-link.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--orange),var(--orange-2));
  box-shadow:0 0 12px rgba(255,138,31,.75);
}
.channel-link .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.drawer{
  display:none;border-top:1px solid var(--line);background:rgba(6,11,22,.97);padding:18px 0 26px;
}
.drawer.open{display:block}
.drawer h4{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:1px;margin-bottom:10px}
.drawer-links{display:grid;gap:6px;margin-bottom:18px}
.drawer-links a{
  display:block;padding:14px 16px;border-radius:var(--radius-sm);font-size:17px;font-weight:700;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:#eef4ff;
}
.drawer-links a:hover{border-color:var(--line-strong)}
.drawer-links a.active{border-color:rgba(255,138,31,.6);color:#fff;background:rgba(255,138,31,.12)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;padding:64px 0 56px;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(5,8,16,.94) 0%,rgba(5,8,16,.80) 46%,rgba(5,8,16,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,190,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,190,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 78%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#d7e2f7}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--orange-2);background:rgba(255,138,31,.12);border:1px solid rgba(255,138,31,.35);
  margin-bottom:18px;
}
.page-hero h1{font-size:clamp(30px,4.6vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.4px;max-width:900px}
.page-hero h1 .accent{
  background:linear-gradient(120deg,var(--orange),var(--orange-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;max-width:760px;color:#c3d0e6;font-size:17px;line-height:1.9}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;border-radius:999px;
  font-size:13.5px;color:#c8d6ec;background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.pill i{color:var(--cyan);font-size:12px}
.pill:hover{border-color:var(--line-strong);color:#fff}

/* ---------- 板块 ---------- */
.section{padding:84px 0}
.section-tight{padding:60px 0}
.section-alt{background:linear-gradient(180deg,rgba(12,20,38,.55),rgba(6,10,20,.15));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3.2vw,36px);letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* ---------- 分组标签 ---------- */
.topic-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.topic-tag{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;
  font-size:14px;color:#c8d6ec;background:rgba(255,255,255,.045);border:1px solid var(--line);
}
.topic-tag i{font-size:12px;color:var(--cyan)}
.topic-tag:hover{border-color:var(--line-strong);color:#fff;transform:translateY(-1px)}
.topic-tag.is-active{color:#2a1201;background:linear-gradient(135deg,var(--orange),var(--orange-2));border-color:transparent;font-weight:700}
.topic-tag.is-active i{color:#2a1201}

/* ---------- 卡片 ---------- */
.grid-x{margin-left:-14px;margin-right:-14px;display:flex;flex-wrap:wrap}
.grid-x > .cell{padding-left:14px;padding-right:14px;width:100%;margin-bottom:28px}
@media (min-width:768px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
}
@media (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-5{width:41.6666%}
  .large-6{width:50%}
  .large-7{width:58.3333%}
}
@media (max-width:767px){
  .small-6{width:50%}
}
.card{
  position:relative;height:100%;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(63,227,255,.42);box-shadow:var(--shadow-hover)}
.card-media{position:relative;overflow:hidden;background:#0b1120}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,16,.05),rgba(5,8,16,.72))}
.card-feature .card-media{aspect-ratio:16/9}
.card-mini .card-media{aspect-ratio:4/3}
.badge{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#2a1201;background:linear-gradient(135deg,var(--orange),var(--orange-2));
  box-shadow:0 6px 16px rgba(0,0,0,.35);
}
.badge-cyan{background:linear-gradient(135deg,#2fd0f2,#9bf1ff);color:#04222c}
.badge-soft{background:rgba(9,15,28,.78);color:#d7e6ff;border:1px solid var(--line);backdrop-filter:blur(8px)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:20px;line-height:1.45}
.card-feature .card-body h3{font-size:22px}
.card:hover .card-body h3{color:var(--orange-2)}
.card-body p{color:var(--muted);font-size:14.8px;line-height:1.85}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:#8595b1}
.meta i{margin-right:5px;color:var(--cyan);font-size:12px}
.stretched-link{position:absolute;inset:0;z-index:3}
.card-link{font-size:14px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:6px}
.card:hover .card-link i{transform:translateX(4px)}
.card-link i{transition:transform .2s ease}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--orange),rgba(63,227,255,.55),transparent)}
.tl-item{position:relative;padding:0 0 30px 8px}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:14px;height:14px;border-radius:50%;
  background:#0a1020;border:2px solid var(--cyan);box-shadow:0 0 12px rgba(63,227,255,.6);
}
.tl-item:nth-child(odd)::before{border-color:var(--orange);box-shadow:0 0 12px rgba(255,138,31,.6)}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{color:var(--muted);font-size:15px}
.tl-day{display:inline-block;font-size:12.5px;color:var(--orange-2);letter-spacing:1px;margin-bottom:8px}

/* ---------- 数据卡 ---------- */
.stat-card{
  height:100%;padding:26px 22px;border-radius:var(--radius);text-align:left;
  background:var(--panel-strong);border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(255,138,31,.45)}
.stat-num{
  font-family:"SFMono-Regular",Menlo,Consolas,"Noto Sans SC",monospace;
  font-size:30px;font-weight:800;letter-spacing:-.5px;color:#fff;
  text-shadow:0 0 22px rgba(63,227,255,.45);
}
.stat-num em{font-style:normal;font-size:15px;color:var(--orange-2);margin-left:4px;letter-spacing:0}
.stat-label{margin-top:10px;font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);
  backdrop-filter:blur(14px);overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item.open{border-color:rgba(63,227,255,.42);background:rgba(17,28,50,.78)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;color:#fff;font-size:17px;font-weight:700;
  text-align:left;cursor:pointer;
}
.faq-q:hover{color:var(--orange-2)}
.faq-q .sign{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:rgba(63,227,255,.12);color:var(--cyan);font-size:14px;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.open .faq-q .sign{transform:rotate(180deg);background:rgba(255,138,31,.16);color:var(--orange-2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- CTA 横幅 ---------- */
.cta-band{padding:0 0 84px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid rgba(255,138,31,.32);
  background:linear-gradient(120deg,rgba(255,138,31,.16),rgba(63,227,255,.10) 55%,rgba(12,20,38,.9));
  box-shadow:var(--shadow);padding:44px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,31,.32),transparent 68%);
}
.cta-inner h2{font-size:clamp(22px,3vw,32px);position:relative;z-index:2}
.cta-inner p{margin-top:12px;color:#c8d6ec;font-size:15.5px;max-width:620px;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ---------- 联系区 ---------- */
.contact-wrap{display:grid;gap:28px;grid-template-columns:1fr;align-items:start}
@media (min-width:1024px){
  .contact-wrap{grid-template-columns:1.15fr .85fr}
}
.form-card{
  padding:30px;border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.form-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){
  .form-grid{grid-template-columns:1fr 1fr}
  .form-grid .full{grid-column:1 / -1}
}
.field label{display:block;font-size:14px;color:#cfdaee;margin-bottom:8px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(6,11,22,.72);border:1px solid var(--line);color:var(--text);
  font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#6f809a}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(63,227,255,.14)}
.field select option{background:#0b1220;color:#e9eefb}
.form-note{font-size:13px;color:#8394af;margin-top:16px}
.info-card{
  padding:28px;border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--panel-strong);backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.info-card h3{font-size:20px;margin-bottom:16px}
.info-list{display:grid;gap:16px}
.info-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:#c6d3e8}
.info-list i{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:rgba(63,227,255,.12);color:var(--cyan);font-size:14px;
}
.info-list span{display:block;color:var(--muted);font-size:13.5px;margin-top:3px}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,25,.86),rgba(4,7,14,.98));
  padding:66px 0 26px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14.5px;max-width:360px;line-height:1.9}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:#7f90ab;
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a{color:#8fa1bd}
.footer-bottom .links a:hover{color:var(--cyan)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:52px 0 46px}
  .cta-inner{padding:34px 26px}
}
@media (max-width:900px){
  .search-box{display:none}
}
@media (max-width:767px){
  .topbar{height:64px}
  .nav-toggle{display:grid;place-items:center}
  .topbar-actions .btn-sm{display:none}
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  .page-hero{padding:40px 0 38px;background-position:62% center}
  .hero-lead{font-size:15.5px}
  .card-body{padding:18px 18px 20px}
  .card-body h3{font-size:18px}
  .card-feature .card-body h3{font-size:19px}
  .cta-band{padding:0 0 52px}
  .form-card,.info-card{padding:22px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:15.5px}
  .hero-meta .pill{width:100%;justify-content:center}
  .card-mini .card-media{aspect-ratio:16/9}
  .stat-num{font-size:26px}
  .timeline{padding-left:22px}
}