/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg:#06101F;
  --bg-2:#0B1B33;
  --panel:#0C1B31;
  --panel-2:#0E2140;
  --glass:rgba(10,25,47,.72);
  --line:rgba(120,180,255,.18);
  --line-soft:rgba(120,180,255,.10);
  --line-strong:rgba(0,212,255,.42);
  --primary:#1E6BFF;
  --cyan:#00D4FF;
  --green:#B6FF3B;
  --orange:#FF7A3D;
  --text:#EAF2FF;
  --muted:#9FB0CB;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-card:0 12px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,212,255,.12);
  --shadow-glow:0 0 24px rgba(0,212,255,.35);
  --sec-y:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(30,107,255,.20), transparent 60%),
    radial-gradient(900px 520px at 92% 4%, rgba(0,212,255,.12), transparent 62%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--cyan);}
img{max-width:100%;display:block;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;color:#fff;line-height:1.25;letter-spacing:.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;}
::selection{background:rgba(0,212,255,.3);}
.grid-container{max-width:1280px;}
.section{padding:var(--sec-y) 0;}
.section-alt{background:linear-gradient(180deg,rgba(11,27,51,.72),rgba(6,16,31,.2));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-tag{
  display:inline-block;padding:5px 14px;margin-bottom:16px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;color:var(--cyan);
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.28);
}
.section-head h2{font-size:34px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#1E6BFF 0%,#00D4FF 100%);
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 34px rgba(0,212,255,.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:rgba(0,212,255,.10);border-color:var(--line-strong);color:#fff;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;}
.link-inline{color:var(--muted);font-size:14px;}
.link-inline:hover{color:var(--cyan);}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan);
}
.arrow-link i{transition:transform .2s ease;}
.arrow-link:hover i{transform:translateX(3px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,31,.84);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(30,107,255,.9),rgba(0,212,255,.85));
  color:#fff;font-size:18px;box-shadow:0 0 18px rgba(0,212,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-main{font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px;white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--cyan);letter-spacing:.18em;}
.brand-row-actions{display:flex;align-items:center;gap:12px;}
.search-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--muted);
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s ease;
}
.search-btn:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(0,212,255,.08);}
.header-cta{height:40px;padding:0 20px;font-size:14px;}
.channel-row{
  display:flex;align-items:center;gap:4px;height:54px;overflow-x:auto;
  scrollbar-width:none;border-top:1px solid var(--line-soft);
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;padding:0 16px;height:54px;display:inline-flex;align-items:center;
  font-size:15px;color:var(--muted);white-space:nowrap;flex:0 0 auto;
}
.channel-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:12px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));opacity:0;transition:opacity .2s ease;
}
.channel-link:hover{color:#fff;}
.channel-link:hover::after{opacity:.55;}
.channel-link.is-active{color:#fff;font-weight:600;}
.channel-link.is-active::after{opacity:1;box-shadow:0 0 12px rgba(0,212,255,.75);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:84px 0 88px;}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;transform:scale(1.04);
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,16,31,.72) 0%,rgba(6,16,31,.9) 62%,var(--bg) 100%),
    linear-gradient(90deg,rgba(6,16,31,.94) 0%,rgba(6,16,31,.45) 60%,rgba(6,16,31,.85) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;opacity:.28;
  background-image:linear-gradient(rgba(120,180,255,.10) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,180,255,.10) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.hero-inner{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:20px;
  border-radius:var(--r-pill);font-size:13px;color:var(--cyan);
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.28);
}
.hero h1{font-size:46px;line-height:1.2;margin-bottom:20px;max-width:14em;}
.hero-sub{font-size:17px;color:var(--muted);max-width:34em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}
.badge-stat{
  display:flex;align-items:center;gap:10px;padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13px;color:var(--muted);
}
.badge-stat b{color:#fff;font-size:15px;font-variant-numeric:tabular-nums;}
.badge-stat i{color:var(--green);}

/* 玻璃卡 */
.glass-card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-lg);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.6),transparent);
}
.login-card{padding:28px 26px 26px;max-width:420px;margin-left:auto;}
.login-title{font-size:22px;margin-bottom:8px;}
.login-hint{font-size:13px;color:var(--muted);margin-bottom:22px;}
.login-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:16px;}
.login-form input[type=text],
.login-form input[type=password]{
  width:100%;height:46px;margin-top:8px;padding:0 14px;border-radius:12px;
  background:rgba(4,12,24,.75);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.login-form input::placeholder{color:rgba(159,176,203,.6);}
.login-form input:focus{
  outline:none;border-color:var(--cyan);background:rgba(4,12,24,.9);
  box-shadow:0 0 0 3px rgba(0,212,255,.16),0 0 18px rgba(0,212,255,.25);
}
.login-form input.is-error{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,122,61,.16);}
.login-form input.is-ok{border-color:var(--green);box-shadow:0 0 0 3px rgba(182,255,59,.14);}
.login-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;font-size:13px;color:var(--muted);}
.check{display:flex;align-items:center;gap:8px;cursor:pointer;}
.check input{width:15px;height:15px;accent-color:#00D4FF;}
.form-note{margin:16px 0 0;font-size:12px;color:var(--muted);line-height:1.7;}

/* ============ 功能 bento ============ */
.bento-card{
  height:100%;padding:26px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.bento-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;font-size:18px;color:var(--cyan);
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.24);
}
.bento-card h3{font-size:20px;margin-bottom:10px;}
.bento-card p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.bento-lg{padding:32px;}
.bento-lg h3{font-size:24px;}
.bento-lg p{margin-bottom:20px;}
.bento-figure{margin-top:22px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.bento-figure img{width:100%;height:180px;object-fit:cover;}

/* ============ 权益滑轨 ============ */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 6px 20px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:rgba(0,212,255,.35);border-radius:6px;}
.rail-card{
  flex:0 0 calc((100% - 60px)/4);scroll-snap-align:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.rail-cover{height:140px;overflow:hidden;}
.rail-cover img{width:100%;height:100%;object-fit:cover;}
.rail-body{padding:20px;}
.rail-body h3{font-size:17px;margin-bottom:8px;}
.rail-body p{font-size:14px;color:var(--muted);margin-bottom:14px;}
.badge{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;
  color:var(--cyan);background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.25);
}
.badge-green{color:var(--green);background:rgba(182,255,59,.10);border-color:rgba(182,255,59,.28);}
.badge-orange{color:var(--orange);background:rgba(255,122,61,.10);border-color:rgba(255,122,61,.28);}

/* ============ 数据卡 ============ */
.metric{
  padding:26px;border-radius:var(--r-lg);height:100%;
  background:var(--glass);border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.metric-value{font-size:32px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
.metric-value span{font-size:14px;color:var(--muted);margin-left:6px;font-weight:400;}
.metric-label{font-size:14px;color:var(--muted);margin-top:6px;}
.metric-bar{height:6px;border-radius:6px;background:rgba(120,180,255,.14);margin-top:18px;overflow:hidden;}
.metric-bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--cyan),var(--green));}

/* ============ 步骤条 ============ */
.steps{position:relative;display:flex;gap:18px;}
.steps::before{
  content:"";position:absolute;left:8px;right:8px;top:19px;height:2px;
  background:linear-gradient(90deg,rgba(0,212,255,.55),rgba(182,255,59,.35),rgba(120,180,255,.18));
}
.step{flex:1 1 0;position:relative;z-index:1;text-align:left;}
.step-dot{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--muted);
  background:#0A1830;border:1px solid var(--line);margin-bottom:16px;
}
.step.is-done .step-dot{color:var(--bg);background:var(--green);border-color:var(--green);}
.step.is-current .step-dot{
  color:#fff;background:linear-gradient(135deg,var(--primary),var(--cyan));
  border-color:transparent;box-shadow:0 0 22px rgba(0,212,255,.55);
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 资讯列表 ============ */
.news-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.news-cover{display:block;height:170px;overflow:hidden;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body .badge{align-self:flex-start;margin-bottom:12px;}
.news-title{font-size:18px;line-height:1.5;margin-bottom:10px;}
.news-title a{color:#fff;}
.news-title a:hover{color:var(--cyan);}
.news-sum{
  font-size:14px;color:var(--muted);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line-soft);
}
.empty-state{
  text-align:center;padding:64px 28px;border-radius:var(--r-lg);
  background:var(--panel);border:1px dashed var(--line);
}
.empty-state i{font-size:30px;color:var(--muted);margin-bottom:18px;display:block;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-accordion{border:none;background:transparent;}
.faq-accordion .accordion-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-accordion .accordion-item.is-active{border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;gap:14px;padding:20px 24px;
  font-size:18px;color:#fff;border:none;background:transparent;
}
.faq-accordion .accordion-title:hover{background:rgba(0,212,255,.05);color:#fff;}
.faq-num{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--cyan);background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.24);
}
.faq-accordion .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:static;margin-left:auto;font-size:13px;color:var(--muted);transition:color .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"\f068";color:var(--cyan);}
.faq-accordion .accordion-content{padding:0 24px 22px 68px;color:var(--muted);font-size:15.5px;line-height:1.8;border:none;background:transparent;}
.faq-accordion .accordion-content p:last-child{margin-bottom:0;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,#08152B 0%,#0D2A55 58%,#0A1F3D 100%);
  border:1px solid rgba(0,212,255,.22);
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(0,0,0,.4);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(115deg,rgba(0,212,255,.14) 0 2px,transparent 2px 46px);
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{font-size:28px;margin-bottom:12px;}
.cta-copy p{color:var(--muted);margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(5,13,26,.9);padding:64px 0 28px;margin-top:0;}
.footer-brand p{color:var(--muted);font-size:14px;margin:16px 0 0;max-width:30em;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:#fff;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact{font-size:14px;color:var(--muted);}
.footer-contact span{display:block;margin-bottom:8px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .rail-card{flex:0 0 calc((100% - 40px)/3);}
}
@media screen and (max-width:1023px){
  :root{--sec-y:72px;}
  .site-header{position:static;}
  .hero{padding:64px 0 68px;}
  .hero h1{font-size:38px;}
  .login-card{margin:32px 0 0;max-width:100%;}
  .steps{flex-direction:column;gap:26px;}
  .steps::before{left:19px;right:auto;top:10px;bottom:10px;width:2px;height:auto;
    background:linear-gradient(180deg,rgba(0,212,255,.55),rgba(120,180,255,.18));}
  .rail-card{flex:0 0 calc((100% - 20px)/2);}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .faq-accordion .accordion-content{padding-left:24px;}
}
@media screen and (max-width:639px){
  :root{--sec-y:52px;}
  body{font-size:15.5px;}
  .brand-main{font-size:15px;}
  .brand-sub{letter-spacing:.12em;}
  .header-cta{display:none;}
  .channel-row{
    mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent);
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent);
  }
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .section-head h2{font-size:26px;}
  .section-head{margin-bottom:34px;}
  .hero-actions .btn{width:100%;}
  .rail-card{flex:0 0 82%;}
  .bento-lg{padding:24px;}
  .cta-band{padding:32px 24px;}
  .footer-col{margin-top:28px;}
  .faq-accordion .accordion-title{font-size:16px;padding:16px 18px;}
  .metric-value{font-size:26px;}
}

/* roulang page: article */
:root{
  --blue:#1E6BFF;
  --cyan:#00D4FF;
  --green:#B6FF3B;
  --orange:#FF7A3D;
  --bg:#06101F;
  --bg-2:#0B1B33;
  --surface:rgba(10,25,47,.72);
  --panel:#0D1E38;
  --panel-2:#122743;
  --line:rgba(120,180,255,.18);
  --line-strong:rgba(120,180,255,.36);
  --text:#EAF2FF;
  --muted:#9FB0CB;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-card:0 12px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,212,255,.12);
  --shadow-glow:0 0 24px rgba(0,212,255,.35);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(30,107,255,.20), transparent 60%),
    radial-gradient(900px 520px at 88% 6%, rgba(0,212,255,.12), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 58%,var(--bg) 100%);
  background-attachment:fixed;
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--muted);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--cyan);}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
h1,h2,h3,h4{margin:0 0 .6em;color:#fff;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0 0 1.1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.grid-container{max-width:1280px;}
@media screen and (min-width:1280px){
  .grid-container:not(.fluid){max-width:1280px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--blue) 0%,var(--cyan) 100%);
  color:#04121F;box-shadow:0 8px 24px rgba(30,107,255,.32),var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 12px 32px rgba(30,107,255,.38),0 0 32px rgba(0,212,255,.45);color:#04121F;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--cyan);color:#fff;}
.btn-small{padding:9px 18px;font-size:13.5px;}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,31,.82);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04121F;font-size:17px;box-shadow:0 0 20px rgba(0,212,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-main{font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px;}
.brand-sub{font-size:12px;color:var(--cyan);letter-spacing:3px;}
.brand-row-actions{display:flex;align-items:center;gap:12px;}
.search-btn{
  width:40px;height:40px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--muted);font-size:15px;transition:all .2s ease;
}
.search-btn:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(255,255,255,.08);}
.channel-row{
  display:flex;align-items:center;gap:6px;height:52px;
  overflow-x:auto;overflow-y:hidden;scrollbar-width:none;
  border-top:1px solid rgba(120,180,255,.10);
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;padding:0 14px;height:52px;display:inline-flex;align-items:center;
  font-size:14.5px;color:var(--muted);white-space:nowrap;transition:color .2s ease;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.channel-link:hover{color:#fff;}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:#fff;font-weight:600;}
.channel-link.is-active::after{transform:scaleX(1);box-shadow:0 0 14px rgba(0,212,255,.65);}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;padding:56px 0 44px;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(6,16,31,.94) 0%,rgba(11,27,51,.86) 55%,rgba(6,16,31,.94) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
.article-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb i{font-size:10px;opacity:.6;}
.breadcrumb .current{color:#C9DBF5;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-tagline{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.4px;
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.32);color:#8FE8FF;
}
.article-hero h1{
  font-size:clamp(28px,4vw,46px);max-width:900px;margin-bottom:18px;line-height:1.22;
}
.article-meta{display:flex;flex-wrap:wrap;gap:22px;font-size:13.5px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--cyan);}

/* ---------- 正文布局 ---------- */
.article-section{padding:64px 0 84px;}
.article-layout{display:flex;flex-wrap:wrap;}
.article-main{max-width:820px;}
.article-content{
  font-size:17.5px;line-height:1.9;color:#DCE7F8;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:34px 38px;box-shadow:var(--shadow-card);
}
.article-content > *:first-child{margin-top:0;}
.article-content h2{
  font-size:26px;margin:40px 0 16px;padding-left:16px;position:relative;scroll-margin-top:130px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--blue));box-shadow:0 0 14px rgba(0,212,255,.5);
}
.article-content h3{font-size:21px;margin:30px 0 12px;color:#EAF2FF;scroll-margin-top:130px;}
.article-content p{margin:0 0 1.2em;}
.article-content a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:#fff;}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-content li{margin-bottom:.5em;}
.article-content strong{color:#fff;}
.article-content blockquote{
  margin:24px 0;padding:16px 20px 16px 22px;position:relative;
  background:rgba(0,212,255,.06);border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:#C9DBF5;
}
.article-content blockquote::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--green));box-shadow:0 0 14px rgba(0,212,255,.55);
}
.article-content img{border-radius:var(--radius-m);margin:22px 0;border:1px solid var(--line);}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;
}
.article-content thead{background:rgba(30,107,255,.16);}
.article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-content tbody tr:nth-child(even){background:rgba(255,255,255,.025);}
.article-content thead th{position:sticky;top:0;color:#fff;font-weight:600;}
.article-content code{
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.18);
  padding:2px 7px;border-radius:6px;font-size:14.5px;color:#9EEBFF;
}
.article-content pre{
  background:#08172B;border:1px solid var(--line);border-radius:var(--radius-m);
  padding:18px;overflow:auto;margin:22px 0;
}
.article-content pre code{background:none;border:0;padding:0;color:#BFE6FF;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.glass-card{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-l);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:24px;
  position:relative;overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.side-title{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title i{color:var(--cyan);}
.toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--line);}
.toc-list li{margin:0;}
.toc-list a{
  display:block;padding:7px 0 7px 14px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;margin-left:-1px;transition:all .18s ease;
}
.toc-list a:hover,.toc-list a.active{color:var(--cyan);border-left-color:var(--cyan);background:linear-gradient(90deg,rgba(0,212,255,.10),transparent);}
.side-info{list-style:none;margin:0;padding:0;font-size:14px;}
.side-info li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(120,180,255,.16);}
.side-info li:last-child{border-bottom:0;}
.side-info span:first-child{color:var(--muted);}
.side-info span:last-child{color:#EAF2FF;font-weight:600;}
.side-cta{margin-top:18px;}

/* ---------- 内容未找到 ---------- */
.empty-state{
  text-align:center;padding:64px 28px;
  background:var(--panel);border:1px dashed var(--line-strong);border-radius:var(--radius-l);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--cyan);
  background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.28);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 88px;}
.section-head{margin-bottom:30px;}
.section-head .eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:8px;}
.section-head p{color:var(--muted);margin:0;font-size:15px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-m);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,16,31,.72));}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.rel-badge{
  align-self:flex-start;font-size:12px;padding:3px 10px;border-radius:999px;margin-bottom:10px;
  color:#8FE8FF;background:rgba(0,212,255,.10);border:1px solid rgba(0,212,255,.28);
}
.rel-body h3{font-size:17px;line-height:1.45;margin-bottom:10px;}
.rel-body p{font-size:14px;color:var(--muted);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.rel-link{margin-top:auto;font-size:14px;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;}
.rel-link i{transition:transform .2s ease;}
.rel-card:hover .rel-link i{transform:translateX(4px);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-l);
  background:linear-gradient(120deg,rgba(30,107,255,.24),rgba(0,212,255,.12)),#081729;
  border:1px solid var(--line-strong);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
  margin-bottom:88px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(120,180,255,.10) 1px,transparent 1px);
  background-size:42px 100%;
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-band p{color:#C4D6F0;margin:0;font-size:15px;}
.cta-band .cta-action{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,16,31,.6),rgba(6,16,31,.98));
  padding:64px 0 26px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:360px;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8FAB;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .article-main{max-width:100%;}
  .article-layout{flex-direction:column;}
  .article-side{order:-1;margin-bottom:24px;}
  .toc-card .toc-list{max-height:220px;overflow:auto;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .article-section{padding:48px 0 64px;}
  .cta-band{margin-bottom:64px;}
  .related-section{padding-bottom:64px;}
}
@media screen and (max-width:767px){
  .site-header{position:static;}
  .brand-main{font-size:15px;}
  .brand-sub{letter-spacing:2px;}
  .header-cta{display:none;}
  .channel-row{
    mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);
  }
  .article-hero{padding:38px 0 32px;}
  .article-content{padding:24px 20px;font-size:16.5px;border-radius:var(--radius-m);}
  .article-content h2{font-size:22px;}
  .article-content h3{font-size:19px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;border-radius:var(--radius-m);}
  .cta-band .cta-action{width:100%;}
  .cta-band .cta-action .btn{flex:1;}
  .site-footer{padding:48px 0 22px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media screen and (max-width:519px){
  .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;font-size:15px;}
  .search-btn{width:36px;height:36px;}
  .breadcrumb .current{max-width:200px;}
  .article-meta{gap:14px;font-size:12.5px;}
  .btn{padding:11px 18px;font-size:14px;}
}

/* roulang page: category1 */
:root{
  --blue:#1E6BFF;
  --cyan:#00D4FF;
  --green:#B6FF3B;
  --orange:#FF7A3D;
  --bg-1:#06101F;
  --bg-2:#0B1B33;
  --panel:rgba(10,25,47,.86);
  --glass:rgba(10,25,47,.62);
  --line:rgba(120,180,255,.18);
  --line-soft:rgba(120,180,255,.10);
  --text:#EAF2FF;
  --muted:#9FB0CB;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-p:999px;
  --sh-card:0 12px 30px rgba(0,0,0,.28);
  --sh-hover:0 18px 48px rgba(0,212,255,.12);
  --sh-glow:0 0 24px rgba(0,212,255,.35);
  --gap-section:96px;
  --container:1280px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1100px 600px at 85% -8%, rgba(30,107,255,.20), transparent 62%),
    radial-gradient(900px 520px at 5% 12%, rgba(0,212,255,.10), transparent 60%),
    linear-gradient(180deg,var(--bg-1) 0%, var(--bg-2) 55%, #050C18 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--muted);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--cyan);}
h1,h2,h3,h4{margin:0 0 .6em;color:#fff;font-weight:700;line-height:1.25;letter-spacing:.01em;}
h1{font-size:clamp(30px,4.3vw,52px);}
h2{font-size:clamp(24px,2.8vw,34px);}
h3{font-size:clamp(19px,1.9vw,24px);}
h4{font-size:18px;}
p{margin:0 0 1.1em;color:var(--muted);}
ul{margin:0 0 1.1em;padding-left:1.1em;color:var(--muted);}
li{margin-bottom:.45em;}
button,input{font-family:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px;}
.grid-x>.cell{padding-left:0;padding-right:0;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,16,31,.82);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:68px;
  padding:10px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#04101F;
  font-size:19px;
  box-shadow:0 8px 20px rgba(0,212,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:18px;font-weight:700;color:#fff;letter-spacing:.02em;}
.brand-sub{font-size:12px;color:var(--cyan);letter-spacing:.16em;}
.brand-row-actions{display:flex;align-items:center;gap:12px;}
.search-btn{
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.search-btn:hover{color:var(--cyan);border-color:rgba(0,212,255,.5);background:rgba(0,212,255,.08);}

.channel-row{
  display:flex;
  align-items:center;
  gap:6px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
  border-top:1px solid var(--line-soft);
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  flex:0 0 auto;
  padding:12px 16px;
  font-size:15px;
  color:var(--muted);
  border-bottom:2px solid transparent;
  white-space:nowrap;
}
.channel-link:hover{color:#fff;border-bottom-color:rgba(0,212,255,.4);}
.channel-link.is-active{color:#fff;font-weight:600;border-bottom-color:var(--cyan);box-shadow:0 10px 22px -14px rgba(0,212,255,.9);}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--r-p);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#03101F;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{color:#03101F;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 32px rgba(0,212,255,.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{color:#fff;background:rgba(0,212,255,.1);border-color:rgba(0,212,255,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.header-cta{padding:10px 20px;font-size:14px;}

/* ============ hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 68px;
  border-bottom:1px solid var(--line-soft);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,16,31,.72) 0%,rgba(6,16,31,.92) 62%,var(--bg-1) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(0,212,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 78%);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--cyan);}
.crumb span.dot{color:rgba(159,176,203,.5);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-p);
  background:rgba(0,212,255,.10);
  border:1px solid rgba(0,212,255,.32);
  color:var(--cyan);
  font-size:13px;letter-spacing:.06em;
  margin-bottom:18px;
}
.page-hero h1{max-width:16em;margin-bottom:.35em;}
.hero-lead{max-width:640px;font-size:17px;line-height:1.85;color:#C7D7F0;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

.status-card{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-l);
  box-shadow:var(--sh-card);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
}
.status-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.7),transparent);
}
.status-card h3{font-size:17px;margin-bottom:14px;}
.status-line{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(120,180,255,.14);
  font-size:14px;
}
.status-line:last-of-type{border-bottom:0;}
.status-line .k{color:var(--muted);}
.status-line .v{color:#fff;font-weight:600;}
.dot-state{display:inline-flex;align-items:center;gap:7px;}
.dot-state i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px rgba(182,255,59,.7);}
.dot-state.cyan i{background:var(--cyan);box-shadow:0 0 10px rgba(0,212,255,.7);}
.dot-state.orange i{background:var(--orange);box-shadow:0 0 10px rgba(255,122,61,.7);}
.status-note{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.8;}

/* ============ sections ============ */
.section{padding:var(--gap-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--cyan);
  margin-bottom:12px;text-transform:uppercase;
}
.section-head p{margin-bottom:0;font-size:16px;}

/* filter chips */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:18px 20px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-soft);
  border-radius:var(--r-m);
}
.filter-label{font-size:13px;color:var(--muted);margin-right:6px;letter-spacing:.08em;}
.filter-chip{
  padding:8px 16px;border-radius:var(--r-p);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:14px;
  transition:all .2s ease;
}
.filter-chip:hover{color:#fff;border-color:rgba(0,212,255,.45);background:rgba(0,212,255,.07);}
.filter-chip.is-active{
  background:linear-gradient(135deg,rgba(30,107,255,.28),rgba(0,212,255,.22));
  border-color:rgba(0,212,255,.6);
  color:#fff;
  box-shadow:0 0 18px rgba(0,212,255,.18);
}

/* focus card */
.focus-card{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:0;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.focus-card:hover{transform:translateY(-4px);border-color:rgba(0,212,255,.45);box-shadow:var(--sh-hover);}
.focus-media{position:relative;min-height:300px;}
.focus-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.focus-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,16,31,.05),rgba(6,16,31,.75));
}
.focus-body{padding:38px 40px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-p);
  font-size:12px;letter-spacing:.08em;
  background:rgba(30,107,255,.18);
  border:1px solid rgba(30,107,255,.42);
  color:#BBD5FF;
  margin-bottom:16px;
}
.badge.green{background:rgba(182,255,59,.12);border-color:rgba(182,255,59,.4);color:var(--green);}
.badge.cyan{background:rgba(0,212,255,.12);border-color:rgba(0,212,255,.4);color:var(--cyan);}
.focus-body h3{font-size:clamp(21px,2.1vw,27px);margin-bottom:.5em;}
.focus-body p{font-size:15.5px;margin-bottom:1.4em;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{color:#fff;}
.link-arrow:hover i{transform:translateX(4px);}

/* content cards */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.content-card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line-soft);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.content-card:hover{transform:translateY(-5px);border-color:rgba(0,212,255,.42);box-shadow:var(--sh-hover);}
.content-card.offset{margin-top:44px;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0E2444,#08152B);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.content-card:hover .card-media img{transform:scale(1.05);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,31,0) 40%,rgba(6,16,31,.85) 100%);
}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:20px;margin-bottom:.5em;}
.card-body p{font-size:15px;margin-bottom:1.2em;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line-soft);}
.card-foot .date{font-size:13px;color:var(--muted);}
.card-foot .link-arrow{font-size:14px;}

/* checklist */
.checklist{
  border:1px solid var(--line-soft);
  border-radius:var(--r-l);
  background:rgba(255,255,255,.02);
  overflow:hidden;
}
.checklist-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 26px;
  border-bottom:1px solid var(--line-soft);
  transition:background .2s ease;
}
.checklist-item:last-child{border-bottom:0;}
.checklist-item:hover{background:rgba(0,212,255,.05);}
.checklist-item .idx{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(0,212,255,.10);
  border:1px solid rgba(0,212,255,.32);
  color:var(--cyan);font-size:14px;font-weight:700;
}
.checklist-item h4{margin:0 0 4px;font-size:16px;}
.checklist-item p{margin:0;font-size:14.5px;line-height:1.75;}

/* faq */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line-soft);
  border-radius:var(--r-m);
  background:rgba(255,255,255,.025);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item.is-open{border-color:rgba(0,212,255,.4);background:rgba(0,212,255,.05);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  background:transparent;border:0;
  color:#fff;font-size:18px;font-weight:600;text-align:left;
  line-height:1.6;
}
.faq-q .num{color:var(--cyan);font-size:14px;letter-spacing:.06em;flex:0 0 auto;}
.faq-q .sign{margin-left:auto;flex:0 0 auto;color:var(--cyan);font-size:18px;transition:transform .2s ease;}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);}
.faq-a{
  display:none;
  padding:0 24px 22px 62px;
  font-size:15.5px;line-height:1.9;color:var(--muted);
}
.faq-item.is-open .faq-a{display:block;}

/* cta band */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid rgba(0,212,255,.28);
  background:linear-gradient(120deg,rgba(30,107,255,.30),rgba(0,212,255,.14) 55%,rgba(6,16,31,.6) 100%),var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-card);
  padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;right:-10%;top:-60%;width:70%;height:220%;
  background:repeating-linear-gradient(115deg,rgba(0,212,255,.10) 0 2px,transparent 2px 26px);
  transform:rotate(6deg);
  pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:.4em;}
.cta-band p{margin:0;font-size:15.5px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* footer */
.site-footer{
  margin-top:24px;
  padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(6,16,31,0) 0%,rgba(4,11,22,.92) 32%);
  border-top:1px solid var(--line-soft);
}
.footer-brand p{font-size:14.5px;line-height:1.85;margin-top:18px;max-width:380px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff;letter-spacing:.04em;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.7;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--muted);
}
.footer-brand .brand{margin-bottom:4px;}

/* ============ responsive ============ */
@media screen and (max-width:1023px){
  :root{--gap-section:72px;}
  .page-hero{padding:56px 0 52px;}
  .focus-card{grid-template-columns:1fr;}
  .focus-media{min-height:230px;position:relative;}
  .focus-body{padding:30px 28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .content-card.offset{margin-top:0;}
  .site-header{position:static;}
  .channel-row{position:static;}
}
@media screen and (max-width:767px){
  :root{--gap-section:56px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:17px;}
  .header-cta{display:none;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .page-hero h1{max-width:none;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .filter-bar{padding:14px;}
  .faq-q{font-size:16.5px;padding:18px 18px;gap:12px;}
  .faq-a{padding:0 18px 20px 48px;font-size:15px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  h1{font-size:28px;}
  .section{padding:44px 0;}
  .focus-body{padding:24px 20px;}
  .card-body{padding:20px;}
  .checklist-item{padding:16px 18px;gap:12px;}
  .status-card{padding:20px 18px;}
}

/* roulang page: category2 */
:root{
  --blue:#1E6BFF;
  --cyan:#00D4FF;
  --green:#B6FF3B;
  --orange:#FF7A3D;
  --bg:#06101F;
  --bg-2:#0B1B33;
  --panel:rgba(12,28,52,.92);
  --panel-soft:rgba(14,32,58,.72);
  --glass:rgba(10,25,47,.72);
  --line:rgba(120,180,255,.18);
  --line-strong:rgba(0,212,255,.42);
  --text:#EAF2FF;
  --muted:#9FB0CB;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow:0 12px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,212,255,.12);
  --glow:0 0 24px rgba(0,212,255,.35);
  --mono:"DIN Alternate","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --section-y:96px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;scroll-padding-top:150px;}

body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(30,107,255,.18), transparent 62%),
    radial-gradient(820px 480px at 92% 0%, rgba(0,212,255,.12), transparent 58%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  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 .2s ease;}

button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}

h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  font-weight:700;
  line-height:1.24;
  letter-spacing:.2px;
  color:var(--text);
}

p{margin:0 0 1.1em;}

ul,ol{margin:0;padding:0;list-style:none;}

input,textarea,select{font-family:inherit;}

::selection{background:rgba(0,212,255,.32);color:#fff;}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 容器 ---------- */
.grid-container{
  max-width:1280px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.3px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}

.btn-primary{
  background:linear-gradient(135deg,#1E6BFF 0%,#00A8FF 60%,#00D4FF 100%);
  color:#fff;
  box-shadow:0 0 24px rgba(0,212,255,.35);
}

.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.08);
  box-shadow:0 0 34px rgba(0,212,255,.5);
  color:#fff;
}

.btn-primary:active{transform:translateY(1px);}

.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(120,180,255,.28);
  color:var(--text);
  backdrop-filter:blur(10px);
}

.btn-ghost:hover{
  background:rgba(0,212,255,.1);
  border-color:var(--line-strong);
  color:#fff;
  transform:translateY(-1px);
}

.btn-sm{padding:9px 18px;font-size:14px;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--muted);
  border-bottom:1px solid transparent;
}

.text-link:hover{color:var(--cyan);border-bottom-color:rgba(0,212,255,.5);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
  border:1px solid var(--line);
  background:rgba(120,180,255,.08);
  color:var(--muted);
}

.badge-cyan{border-color:rgba(0,212,255,.4);background:rgba(0,212,255,.12);color:#7FE6FF;}
.badge-green{border-color:rgba(182,255,59,.35);background:rgba(182,255,59,.1);color:#CFFF7A;}
.badge-orange{border-color:rgba(255,122,61,.38);background:rgba(255,122,61,.12);color:#FFA982;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,16,31,.86);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}

.brand-row{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}

.brand{display:flex;align-items:center;gap:12px;}

.brand-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#fff;
  font-size:17px;
  box-shadow:0 0 18px rgba(0,212,255,.35);
  flex:0 0 auto;
}

.brand-text{display:flex;flex-direction:column;line-height:1.15;}

.brand-main{font-size:17px;font-weight:700;letter-spacing:.4px;}

.brand-sub{font-size:12px;letter-spacing:4px;color:var(--cyan);}

.brand-row-actions{display:flex;align-items:center;gap:12px;}

.search-btn{
  width:38px;
  height:38px;
  border-radius:50%;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  transition:all .22s ease;
}

.search-btn:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(0,212,255,.1);}

.channel-row{
  display:flex;
  align-items:center;
  gap:6px;
  padding:0 0 10px;
  overflow-x:auto;
  scrollbar-width:none;
}

.channel-row::-webkit-scrollbar{display:none;}

.channel-link{
  position:relative;
  padding:8px 14px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:10px;
  white-space:nowrap;
  transition:all .22s ease;
}

.channel-link:hover{color:#DFEEFF;background:rgba(120,180,255,.08);}

.channel-link.is-active{color:#fff;font-weight:600;}

.channel-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  box-shadow:0 0 12px rgba(0,212,255,.7);
}

/* ---------- 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:.34;
}

.hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(6,16,31,.97) 0%,rgba(6,16,31,.88) 46%,rgba(6,16,31,.74) 100%);
}

.hero-grid-lines{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(120,180,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.06) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 30%,#000 0%,transparent 78%);
  mask-image:radial-gradient(ellipse at 30% 30%,#000 0%,transparent 78%);
}

.hero-inner{
  position:relative;
  z-index:2;
  padding:74px 0 78px;
}

.hero-copy h1{
  font-size:46px;
  line-height:1.22;
  letter-spacing:.5px;
  margin-bottom:20px;
}

.hero-copy h1 .accent{
  background:linear-gradient(120deg,#00D4FF,#B6FF3B);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero-copy p.lead{
  font-size:17px;
  color:#C6D6EE;
  max-width:600px;
  margin-bottom:26px;
}

.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}

.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}

.hero-badges .badge{padding:7px 14px;font-size:12.5px;}

.hero-side{
  display:flex;
  justify-content:flex-end;
}

.channel-status{
  width:100%;
  max-width:380px;
  padding:26px;
  border-radius:var(--radius-l);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 18px 48px rgba(0,0,0,.4);
  position:relative;
  overflow:hidden;
}

.channel-status::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.7),transparent);
}

.channel-status h2{
  font-size:19px;
  margin-bottom:6px;
}

.channel-status .status-sub{
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:20px;
}

.status-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(120,180,255,.16);
  font-size:14px;
}

.status-list li:last-child{border-bottom:0;}

.status-list .label{color:var(--muted);}

.status-list .value{color:#EAF2FF;font-weight:600;}

.status-progress{
  margin-top:18px;
  height:6px;
  border-radius:999px;
  background:rgba(120,180,255,.16);
  overflow:hidden;
}

.status-progress span{
  display:block;
  height:100%;
  width:72%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--cyan),var(--green));
  box-shadow:0 0 14px rgba(0,212,255,.6);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}

.section-alt{
  background:linear-gradient(180deg,rgba(11,27,51,.55) 0%,rgba(6,16,31,0) 100%);
  border-top:1px solid rgba(120,180,255,.08);
  border-bottom:1px solid rgba(120,180,255,.08);
}

.section-head{max-width:760px;margin-bottom:46px;}

.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:2px;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:12px;
}

.section-head h2{
  font-size:33px;
  margin-bottom:14px;
}

.section-head p{
  color:var(--muted);
  font-size:16px;
  margin-bottom:0;
}

/* ---------- 目录 + 时间线 ---------- */
.guide-layout{position:relative;}

.toc-panel{
  position:sticky;
  top:148px;
  padding:22px;
  border-radius:var(--radius-m);
  background:var(--panel-soft);
  border:1px solid var(--line);
}

.toc-panel h3{
  font-size:15px;
  letter-spacing:1px;
  color:var(--muted);
  font-weight:600;
  margin-bottom:14px;
}

.toc-toggle{
  display:none;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 14px;
  margin-bottom:0;
  border-radius:var(--radius-s);
  border:1px solid var(--line);
  background:rgba(120,180,255,.06);
  font-size:14.5px;
  font-weight:600;
}

.toc-toggle i{transition:transform .25s ease;}

.toc-toggle.is-open i{transform:rotate(45deg);}

.toc-list{display:flex;flex-direction:column;gap:2px;}

.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 10px;
  border-radius:var(--radius-s);
  font-size:14px;
  color:var(--muted);
  border-left:2px solid transparent;
}

.toc-list a:hover{
  color:#fff;
  background:rgba(0,212,255,.08);
  border-left-color:var(--cyan);
}

.toc-list a span.num{
  font-family:var(--mono);
  font-size:12px;
  color:rgba(0,212,255,.75);
}

.timeline{
  position:relative;
  padding-left:46px;
  margin:0;
}

.timeline::before{
  content:"";
  position:absolute;
  left:16px;
  top:16px;
  bottom:16px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(0,212,255,.85),rgba(182,255,59,.5) 55%,rgba(120,180,255,.1));
}

.step{position:relative;margin-bottom:22px;}

.step:last-child{margin-bottom:0;}

.step-index{
  position:absolute;
  left:-46px;
  top:20px;
  width:34px;
  height:34px;
  border-radius:50%;
  display:grid;
  place-items:center;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--cyan);
  background:#0B1B33;
  border:1px solid rgba(0,212,255,.5);
  box-shadow:0 0 16px rgba(0,212,255,.28);
  z-index:2;
}

.step.is-done .step-index{
  color:var(--green);
  border-color:rgba(182,255,59,.55);
  box-shadow:0 0 16px rgba(182,255,59,.3);
}

.step-card{
  padding:22px 24px;
  border-radius:var(--radius-m);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}

.step-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}

.step-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  margin-bottom:8px;
}

.step-head h3{
  font-size:20px;
  margin:0;
}

.step-card p{
  color:var(--muted);
  font-size:15.5px;
  margin-bottom:12px;
}

.step-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

.step-meta .hint{
  font-size:13px;
  color:rgba(159,176,203,.8);
}

/* ---------- 功能 bento ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}

.bento-item{
  padding:26px;
  border-radius:var(--radius-m);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}

.bento-item:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}

.bento-item.wide{grid-column:span 2;}

.bento-icon{
  width:46px;
  height:46px;
  border-radius:14px;
  display:grid;
  place-items:center;
  font-size:18px;
  color:#fff;
  background:linear-gradient(135deg,rgba(30,107,255,.95),rgba(0,212,255,.85));
  box-shadow:0 0 20px rgba(0,212,255,.28);
  margin-bottom:16px;
}

.bento-item h3{font-size:19px;margin-bottom:8px;}

.bento-item p{color:var(--muted);font-size:15px;margin-bottom:0;}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:44px;
  align-items:center;
  margin-bottom:56px;
}

.feature-row:last-child{margin-bottom:0;}

.feature-row.reverse .feature-media{order:2;}

.feature-media{
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
}

.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}

.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,16,31,0) 45%,rgba(6,16,31,.55) 100%);
  pointer-events:none;
}

.feature-text h3{font-size:24px;margin-bottom:12px;}

.feature-text p{color:var(--muted);font-size:15.5px;}

.check-list{margin-top:6px;}

.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:7px 0;
  font-size:15px;
  color:#D3E1F5;
}

.check-list li i{color:var(--green);font-size:13px;margin-top:7px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}

.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  background:var(--panel);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}

.faq-item:hover{border-color:rgba(120,180,255,.32);}

.faq-item.is-open{
  border-color:var(--line-strong);
  box-shadow:0 14px 40px rgba(0,212,255,.1);
}

.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--text);
}

.faq-q .faq-num{
  font-family:var(--mono);
  font-size:13px;
  color:var(--cyan);
  flex:0 0 auto;
}

.faq-q .faq-title{flex:1;}

.faq-q i{
  color:var(--muted);
  font-size:14px;
  transition:transform .22s ease,color .22s ease;
}

.faq-item.is-open .faq-q i{color:var(--cyan);transform:rotate(45deg);}

.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
}

.faq-a-inner{
  padding:0 22px 22px 60px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}

.faq-a-inner p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-strip{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-l);
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  background:
    linear-gradient(120deg,rgba(30,107,255,.22),rgba(0,212,255,.1) 55%,rgba(182,255,59,.08)),
    var(--bg-2);
  border:1px solid rgba(120,180,255,.24);
  box-shadow:0 20px 56px rgba(0,0,0,.42);
}

.cta-strip::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(120,180,255,.07) 0 2px,transparent 2px 46px);
  pointer-events:none;
}

.cta-copy{position:relative;z-index:2;max-width:640px;}

.cta-copy h2{font-size:27px;margin-bottom:10px;}

.cta-copy p{color:#C4D5EE;font-size:15.5px;margin-bottom:0;}

.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(6,16,31,0) 0%,rgba(11,27,51,.85) 40%,rgba(6,16,31,1) 100%);
  border-top:1px solid var(--line);
}

.footer-brand .brand{margin-bottom:16px;}

.footer-brand p{color:var(--muted);font-size:14.5px;max-width:360px;}

.footer-col h4{
  font-size:15px;
  letter-spacing:.5px;
  margin-bottom:16px;
  color:#EAF2FF;
}

.footer-col ul li{margin-bottom:10px;}

.footer-col ul li a{
  font-size:14.5px;
  color:var(--muted);
}

.footer-col ul li a:hover{color:var(--cyan);}

.footer-contact{display:flex;flex-direction:column;gap:10px;}

.footer-contact span{
  font-size:14px;
  color:var(--muted);
  padding-left:16px;
  position:relative;
}

.footer-contact span::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(0,212,255,.7);
}

.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(120,180,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(159,176,203,.75);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  :root{--section-y:80px;}
  .grid-container{max-width:1120px;}
  .hero-copy h1{font-size:40px;}
}

@media screen and (max-width:1023px){
  :root{--section-y:64px;}
  .site-header{position:static;}
  .hero-inner{padding:56px 0 60px;}
  .hero-copy h1{font-size:34px;}
  .hero-side{justify-content:flex-start;margin-top:34px;}
  .channel-status{max-width:none;}
  .section-head h2{font-size:28px;}
  .toc-panel{position:static;padding:16px;margin-bottom:26px;}
  .toc-toggle{display:flex;}
  .toc-list{
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
    margin-top:0;
  }
  .toc-list.is-open{max-height:520px;margin-top:12px;}
  .feature-row{grid-template-columns:1fr;gap:26px;}
  .feature-row.reverse .feature-media{order:0;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:34px 26px;}
}

@media screen and (max-width:639px){
  :root{--section-y:48px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  .brand-row{height:62px;}
  .brand-main{font-size:15.5px;}
  .brand-sub{font-size:11px;letter-spacing:3px;}
  .header-cta{padding:9px 14px;font-size:13px;}
  .search-btn{display:none;}
  .channel-row{
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
    padding-bottom:8px;
  }
  .channel-link{padding:7px 11px;font-size:13.5px;}
  .hero-copy h1{font-size:29px;}
  .hero-copy p.lead{font-size:15.5px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{width:100%;}
  .section-head h2{font-size:24px;}
  .bento{grid-template-columns:1fr;}
  .bento-item.wide{grid-column:span 1;}
  .timeline{padding-left:38px;}
  .timeline::before{left:14px;}
  .step-index{left:-38px;width:30px;height:30px;font-size:12px;}
  .step-card{padding:18px;}
  .step-head{flex-direction:column;gap:8px;}
  .step-head h3{font-size:17.5px;}
  .faq-q{font-size:16px;padding:16px;gap:12px;}
  .faq-a-inner{padding:0 16px 18px 16px;font-size:15px;}
  .cta-copy h2{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1E6BFF;
  --c-cyan:#00D4FF;
  --c-green:#B6FF3B;
  --c-warn:#FF7A3D;
  --bg-0:#06101F;
  --bg-1:#0B1B33;
  --bg-2:#0E2440;
  --glass:rgba(10,25,47,.72);
  --panel:#0C1E38;
  --line:rgba(120,180,255,.18);
  --line-strong:rgba(0,212,255,.42);
  --text:#EAF2FF;
  --muted:#9FB0CB;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-p:999px;
  --sh-card:0 12px 30px rgba(0,0,0,.28);
  --sh-hover:0 18px 48px rgba(0,212,255,.12);
  --glow:0 0 24px rgba(0,212,255,.35);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 82% -12%, rgba(30,107,255,.20), transparent 62%),
    radial-gradient(760px 480px at 6% 12%, rgba(0,212,255,.10), transparent 60%),
    var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-s)}
a{color:var(--muted);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-cyan)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.28}
h1{font-size:46px;letter-spacing:.01em}
h2{font-size:32px}
h3{font-size:23px}
h4{font-size:18px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
.section{padding:var(--sec) 0}
.section-tight{padding:calc(var(--sec) * .62) 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--c-cyan);text-transform:uppercase;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-cyan));border-radius:2px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-p);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#1E6BFF 0%,#0FA9F5 100%);
  color:#fff;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 32px rgba(0,212,255,.5);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{background:rgba(0,212,255,.10);border-color:var(--c-cyan);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--c-cyan)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{color:#fff}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 标签 / 徽章 / 状态 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-p);
  font-size:12.5px;letter-spacing:.04em;
  border:1px solid var(--line);background:rgba(120,180,255,.08);color:var(--muted);
}
.badge-cyan{border-color:rgba(0,212,255,.4);background:rgba(0,212,255,.12);color:#8FE9FF}
.badge-green{border-color:rgba(182,255,59,.35);background:rgba(182,255,59,.12);color:#D6FF8A}
.badge-warn{border-color:rgba(255,122,61,.4);background:rgba(255,122,61,.12);color:#FFB391}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex:0 0 auto}
.dot-green{background:var(--c-green);box-shadow:0 0 10px rgba(182,255,59,.7)}
.dot-warn{background:var(--c-warn);box-shadow:0 0 10px rgba(255,122,61,.6)}
.dot-muted{background:#5C7396}
.status{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;white-space:nowrap}
.status.is-warn{color:#FFB391}
.status.is-green{color:#D6FF8A}
.status.is-muted{color:var(--muted)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,16,31,.84);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-cyan));
  color:#fff;font-size:16px;box-shadow:var(--glow);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--c-cyan);letter-spacing:.24em}
.brand-row-actions{display:flex;align-items:center;gap:12px}
.search-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--muted);cursor:pointer;display:grid;place-items:center;
  transition:all .2s ease;
}
.search-btn:hover{color:var(--c-cyan);border-color:var(--c-cyan);background:rgba(0,212,255,.1)}
.search-btn:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px}
.channel-row{
  display:flex;align-items:center;gap:6px;height:52px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  border-top:1px solid rgba(120,180,255,.1);
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  height:52px;padding:0 14px;font-size:15px;color:var(--muted);white-space:nowrap;
}
.channel-link:hover{color:var(--text)}
.channel-link.is-active{color:#fff;font-weight:600}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-cyan));
  border-radius:2px;box-shadow:0 0 12px rgba(0,212,255,.85);
}
.channel-link:not(.is-active):hover::after{
  content:"";position:absolute;left:14px;right:14px;bottom:9px;height:1px;
  background:rgba(0,212,255,.5);border-radius:2px;
}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li::after{content:"/";color:rgba(159,176,203,.5)}
.crumb li:last-child::after{display:none}
.crumb a{color:var(--muted)}
.crumb .is-current{color:var(--text)}

/* ---------- 频道 Hero ---------- */
.cat-hero{
  position:relative;margin-top:20px;
  padding:64px 0 56px;
  background-image:linear-gradient(180deg,rgba(6,16,31,.74),rgba(6,16,31,.95)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,180,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.cat-hero .grid-container{position:relative;z-index:2}
.hero-inner{align-items:center}
.hero-tag{margin-bottom:16px}
.hero-title{max-width:820px}
.hero-title h1{font-size:44px;line-height:1.22}
.hero-lead{margin-top:18px;max-width:680px;color:#C4D3EA;font-size:17px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-panel{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-l);
  padding:26px 24px;
  box-shadow:var(--sh-card);
  position:relative;
  overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.65),transparent);
}
.hero-panel h3{font-size:18px;margin-bottom:6px}
.hero-panel .panel-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed rgba(120,180,255,.16);font-size:14.5px;
}
.panel-list li:last-child{border-bottom:0}
.panel-list .k{color:var(--muted)}
.panel-list .v{color:var(--text);font-weight:600}

/* ---------- 筛选标签条 ---------- */
.filter-bar{
  border-bottom:1px solid var(--line);
  background:rgba(11,27,51,.62);
  backdrop-filter:blur(10px);
}
.filter-scroll{
  display:flex;align-items:center;gap:10px;
  padding:14px 0;overflow-x:auto;scrollbar-width:none;
}
.filter-scroll::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--r-p);
  font-size:13.5px;color:var(--muted);white-space:nowrap;
  border:1px solid var(--line);background:rgba(120,180,255,.05);
  transition:all .2s ease;cursor:pointer;
}
.chip:hover{color:#fff;border-color:var(--c-cyan);background:rgba(0,212,255,.10)}
.chip.is-on{color:#05121F;font-weight:600;background:linear-gradient(135deg,var(--c-primary),var(--c-cyan));border-color:transparent;box-shadow:var(--glow)}

/* ---------- 准备面板 ---------- */
.prep-card{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-l);
  padding:34px 32px;
  box-shadow:var(--sh-card);
  position:relative;overflow:hidden;
}
.prep-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.6),transparent);
}
.prep-list{margin-top:24px}
.prep-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(120,180,255,.16)}
.prep-list li:last-child{border-bottom:0;padding-bottom:0}
.prep-num{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  color:#05121F;background:linear-gradient(135deg,var(--c-green),var(--c-cyan));
}
.prep-list .t{font-weight:600;font-size:16px;margin-bottom:4px;color:var(--text)}
.prep-list .d{font-size:14.5px;color:var(--muted);line-height:1.8}
.prep-side{
  border:1px solid var(--line);border-radius:var(--r-m);
  background:rgba(6,16,31,.55);padding:24px;height:100%;
  display:flex;flex-direction:column;gap:16px;
}
.prep-side .hint{
  font-size:14.5px;color:var(--muted);line-height:1.85;
  border-left:2px solid rgba(0,212,255,.55);padding-left:14px;
}

/* ---------- 对比卡 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:28px 26px;
  box-shadow:var(--sh-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  position:relative;overflow:hidden;
}
.compare-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.compare-card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
}
.compare-card.is-good::after{background:linear-gradient(180deg,var(--c-green),rgba(182,255,59,.1))}
.compare-card.is-warn::after{background:linear-gradient(180deg,var(--c-warn),rgba(255,122,61,.1))}
.compare-card h3{font-size:21px;margin-bottom:10px}
.compare-card .lead{font-size:14.5px;color:var(--muted);margin-bottom:20px;line-height:1.85}
.compare-card ul{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.compare-card ul li{display:flex;gap:10px;font-size:14.5px;color:#C4D3EA;line-height:1.75}
.compare-card ul li i{color:var(--c-cyan);margin-top:5px;font-size:12px}
.compare-cover{
  height:150px;border-radius:var(--r-s);overflow:hidden;margin-bottom:20px;
  border:1px solid var(--line);
}
.compare-cover img{width:100%;height:100%;object-fit:cover;border-radius:0}

/* ---------- 字段清单表 ---------- */
.table-wrap{
  margin-top:28px;border:1px solid var(--line);border-radius:var(--r-m);
  overflow:auto;max-height:600px;background:rgba(10,25,47,.55);
  box-shadow:var(--sh-card);
}
.spec-table{
  width:100%;min-width:780px;margin:0;border-collapse:separate;border-spacing:0;background:transparent;
}
.spec-table th,.spec-table td{
  padding:16px 20px;font-size:15px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);background:transparent;
}
.spec-table thead th{
  position:sticky;top:0;z-index:3;
  background:#0B2039;color:var(--muted);
  font-size:13px;font-weight:600;letter-spacing:.1em;
  border-bottom:1px solid var(--line-strong);
}
.spec-table tbody tr:nth-child(even) td{background:rgba(120,180,255,.03)}
.spec-table tbody tr:hover td{background:rgba(0,212,255,.06)}
.spec-table tbody td:first-child{color:var(--text);font-weight:600}
.spec-table tbody td{color:#C4D3EA}
.table-note{margin-top:14px;font-size:13.5px;color:var(--muted)}

/* ---------- 资源列表 ---------- */
.res-list{border-top:1px solid var(--line)}
.res-item{
  display:flex;align-items:center;gap:20px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .2s ease;
}
.res-item:hover{background:rgba(0,212,255,.05);padding-left:12px}
.res-index{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--r-s);
  display:grid;place-items:center;font-size:14px;font-weight:700;color:var(--c-cyan);
  border:1px solid var(--line);background:rgba(0,212,255,.06);
}
.res-body{flex:1 1 auto;min-width:0}
.res-body .t{font-size:17px;font-weight:600;color:var(--text);margin-bottom:4px}
.res-body .d{font-size:14px;color:var(--muted);line-height:1.75}
.res-go{flex:0 0 auto;color:var(--muted);font-size:15px;transition:transform .2s ease,color .2s ease}
.res-item:hover .res-go{color:var(--c-cyan);transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:940px;margin:0 auto}
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:var(--panel);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion-item:hover{border-color:rgba(0,212,255,.32)}
.accordion-item.is-active{border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.accordion-title{
  display:flex;align-items:center;gap:14px;
  padding:20px 56px 20px 22px;
  border:0;background:transparent;color:var(--text);
  font-size:18.5px;font-weight:600;line-height:1.5;
  position:relative;transition:color .2s ease;
}
.accordion-title:hover{background:rgba(0,212,255,.06);color:#fff}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-cyan);line-height:1;
}
.accordion-item.is-active .accordion-title::before{content:"−"}
.acc-num{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--c-cyan);
  letter-spacing:.08em;
}
.accordion-content{
  border-top:1px solid var(--line);
  background:rgba(6,16,31,.42);
  color:#C4D3EA;font-size:15.5px;line-height:1.85;
  padding:18px 24px 22px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:
    repeating-linear-gradient(115deg,rgba(120,180,255,.05) 0 2px,transparent 2px 26px),
    linear-gradient(120deg,rgba(30,107,255,.28),rgba(6,16,31,.9) 62%,rgba(0,212,255,.18));
  padding:38px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-card);
}
.cta-band h3{font-size:25px;margin-bottom:10px}
.cta-band p{color:#C4D3EA;font-size:15px;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,27,51,.7),rgba(6,16,31,.98));
  padding:64px 0 24px;margin-top:var(--sec);
}
.footer-brand p{margin-top:18px;font-size:14.5px;color:var(--muted);line-height:1.85;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14.5px}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14.5px;color:var(--muted)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  :root{--sec:84px}
  .grid-container{max-width:1160px}
}
@media screen and (max-width:1023px){
  :root{--sec:70px}
  .hero-title h1{font-size:38px}
  .hero-lead{font-size:16px}
  .hero-panel{margin-top:32px}
  .compare-grid{grid-template-columns:1fr}
  .spec-table{min-width:720px}
}
@media screen and (max-width:768px){
  :root{--sec:60px}
  .grid-container{padding-left:18px;padding-right:18px}
  .cat-hero{padding:48px 0 42px}
  .hero-title h1{font-size:32px}
  h2{font-size:26px}
  .prep-card{padding:26px 22px}
  .cta-band{padding:28px 22px}
  .cta-band h3{font-size:21px}
  .accordion-title{font-size:17px;padding:18px 52px 18px 18px}
}
@media screen and (max-width:639px){
  :root{--sec:48px}
  .site-header{position:static}
  .brand-row{height:62px}
  .brand-main{font-size:15px}
  .brand-sub{letter-spacing:.18em}
  .header-cta{display:none}
  .channel-row{
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
  }
  .channel-link{font-size:14px;padding:0 11px}
  .channel-link.is-active::after{left:11px;right:11px}
  .cat-hero{padding:38px 0 34px}
  .hero-title h1{font-size:28px;line-height:1.3}
  .hero-lead{font-size:15px;line-height:1.8}
  .hero-actions .btn{width:100%}
  h2{font-size:23px}
  .section-head p{font-size:15px}
  .compare-card{padding:22px 20px}
  .prep-card{padding:22px 18px}
  .res-item{gap:14px;padding:18px 2px}
  .res-body .t{font-size:15.5px}
  .spec-table{min-width:660px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}