/* roulang page: index */
:root{
  --primary:#FF6A2B;
  --secondary:#6B3DFF;
  --accent:#2FD8B6;
  --alert:#FF3B5C;
  --bg-dark:#120E1F;
  --panel:#1B1430;
  --stroke-dark:rgba(255,255,255,.08);
  --light:#FAF8FF;
  --ink:#1B1430;
  --muted:#6E6885;
  --stroke-light:#E7E2F5;
  --text-invert:#F5F3FF;
  --muted-dark:#A9A3C4;
  --r-card:16px;
  --r-hero:20px;
  --r-pill:999px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  --glow:0 12px 32px rgba(255,106,43,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  background:var(--bg-dark);
  color:var(--text-invert);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
section[id],div[id]{scroll-margin-top:120px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(18,14,31,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--stroke-dark)}
.top-inner{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 18px rgba(107,61,255,.4);
}
.brand-mark svg{width:18px;height:18px;fill:#fff}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-invert);line-height:1.2}
.search-box{
  display:flex;align-items:center;flex:1;max-width:420px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--stroke-dark);
  border-radius:var(--r-pill);
  padding:4px 4px 4px 18px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.25)}
.search-box input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text-invert);font-size:14px;padding:8px 0}
.search-box input::placeholder{color:var(--muted-dark)}
.search-box button{
  flex:none;padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  background:linear-gradient(120deg,var(--primary),var(--secondary));color:#fff;
}
.top-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--stroke-dark);background:rgba(255,255,255,.05);
  place-items:center;font-size:16px;
}
.mobile-drawer{display:none;border-top:1px solid var(--stroke-dark);background:rgba(18,14,31,.98);padding:16px 0 20px}
.mobile-drawer.open{display:block}
.mobile-drawer .container{display:grid;gap:14px}
.mobile-drawer .search-box{max-width:none;width:100%}

.channel-bar{border-top:1px solid var(--stroke-dark);background:rgba(255,255,255,.02)}
.channel-scroll{
  display:flex;gap:8px;overflow-x:auto;
  padding-top:8px;padding-bottom:8px;
  scroll-snap-type:x proximity;overscroll-behavior-x:contain;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  position:relative;flex:none;padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted-dark);white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  scroll-snap-align:start;
}
.pill:hover{background:rgba(255,255,255,.10);color:var(--text-invert)}
.pill.active{
  color:#fff;font-weight:600;
  background:linear-gradient(120deg,var(--primary),var(--secondary));
  box-shadow:0 6px 18px rgba(255,106,43,.35),inset 0 -2px 0 rgba(255,255,255,.55);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.4;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,106,43,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{border:1px solid rgba(255,255,255,.24);color:var(--text-invert)}
.btn-ghost:hover{background:rgba(255,255,255,.10)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light-ghost{border:1px solid rgba(255,106,43,.4);color:var(--ink)}
.btn-light-ghost:hover{background:rgba(255,106,43,.08)}
.btn-sm{padding:9px 20px;font-size:14px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:var(--r-badge);
}
.badge-live{background:rgba(255,59,92,.18);color:#FF8A9E}
.badge-soon{background:rgba(255,106,43,.18);color:#FFB08C}
.badge-done{background:rgba(169,163,196,.16);color:var(--muted-dark)}
.badge-soft{background:rgba(107,61,255,.2);color:#BFAEFF}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--alert);animation:pulse 1.6s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,59,92,.55)}
  70%{box-shadow:0 0 0 10px rgba(255,59,92,0)}
  100%{box-shadow:0 0 0 0 rgba(255,59,92,0)}
}
@media (prefers-reduced-motion:reduce){
  .dot-live{animation:none}
  html{scroll-behavior:auto}
}

/* ============ Hero ============ */
.hero{position:relative;padding:64px 0 84px;overflow:hidden;background:var(--bg-dark)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.86) 46%,rgba(107,61,255,.38) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:40px;align-items:start}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:700;line-height:1.3;letter-spacing:0;
  margin:18px 0 16px;
}
.hero-lead{font-size:17px;color:#D9D3F5;margin-bottom:24px;max-width:640px}
.cover-frame{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  border:1px solid var(--stroke-dark);background:var(--panel);
  box-shadow:0 18px 44px rgba(10,7,20,.65);
}
.cover-frame img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-frame .badge{position:absolute;top:14px;left:14px;z-index:3;background:rgba(18,14,31,.82);backdrop-filter:blur(6px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-side{
  background:rgba(27,20,48,.78);
  border:1px solid var(--stroke-dark);
  border-radius:var(--r-hero);
  padding:26px 24px;
  box-shadow:0 0 0 1px rgba(255,255,255,.03) inset;
}
.side-title{font-size:18px;font-weight:700;margin-bottom:18px;line-height:1.45}
.hl-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 16px;margin-bottom:12px;
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.04);
  border-radius:0 12px 12px 0;
}
.hl-item:last-of-type{margin-bottom:0}
.hl-num{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.06em;line-height:1.7}
.hl-text{font-size:14px;color:#D9D3F5;line-height:1.75}
.subscribe-mini{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--stroke-dark);
}
.subscribe-mini p{font-size:13px;color:var(--muted-dark);margin-bottom:12px}
.subscribe-mini .btn{width:100%}

/* ============ 倒计时 ============ */
.countdown-wrap{padding:0 0 12px;margin-top:-40px;position:relative;z-index:5}
.countdown{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(27,20,48,.96),rgba(107,61,255,.24));
  border:1px solid var(--stroke-dark);
  border-radius:var(--r-hero);
  padding:24px 28px;
  box-shadow:0 18px 40px rgba(10,7,20,.5);
}
.countdown-label{flex:none;margin-right:auto}
.countdown-label strong{display:block;font-size:16px;font-weight:700}
.countdown-label span{font-size:13px;color:var(--muted-dark)}
.cd-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.cd-block{
  min-width:92px;padding:12px 10px;text-align:center;
  background:rgba(18,14,31,.75);
  border:1px solid var(--stroke-dark);
  border-radius:14px;
}
.cd-num{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.1;color:var(--accent);font-variant-numeric:tabular-nums}
.cd-label{font-size:12px;color:var(--muted-dark);margin-top:6px}
.cd-sep{font-size:22px;font-weight:700;color:var(--secondary);line-height:1}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section-light{background:var(--light);color:var(--ink)}
.section-dark{background:var(--bg-dark)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-title{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px;color:inherit}
.section-sub{font-size:15px;line-height:1.8;max-width:680px}
.section-dark .section-sub{color:var(--muted-dark)}
.section-light .section-sub{color:var(--muted)}
.more-link{font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap}
.more-link:hover{color:#ff834d;text-decoration:underline}

.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}

/* ============ 卡片 ============ */
.card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--stroke-dark);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--glow);border-color:rgba(255,106,43,.32)}
.card-media{position:relative}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-media .badge{position:absolute;top:12px;left:12px;background:rgba(18,14,31,.82);backdrop-filter:blur(6px)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{
  font-size:14px;line-height:1.75;color:var(--muted-dark);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--stroke-dark);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-dark);
  font-variant-numeric:tabular-nums;
}
.card.is-live{border-color:rgba(255,106,43,.55);box-shadow:0 0 0 1px rgba(255,106,43,.28),0 12px 32px rgba(255,106,43,.2)}

/* ============ 频道磁贴 ============ */
.tile-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px}
.tile{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  min-height:190px;padding:24px;
  border-radius:var(--r-card);
  border:1px solid var(--stroke-dark);
  background:linear-gradient(150deg,rgba(27,20,48,.95),rgba(107,61,255,.22));
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tile:hover{transform:translateY(-3px);box-shadow:var(--glow);border-color:rgba(255,106,43,.4)}
.tile-1,.tile-2{grid-column:span 3}
.tile-3,.tile-4,.tile-5{grid-column:span 2}
.tile-icon{
  width:44px;height:44px;border-radius:999px;display:grid;place-items:center;
  background:rgba(255,106,43,.16);color:var(--primary);font-size:18px;font-weight:700;
}
.tile-name{font-size:18px;font-weight:700;margin:18px 0 8px;line-height:1.45}
.tile-desc{font-size:14px;line-height:1.75;color:var(--muted-dark)}
.tile-more{margin-top:16px;font-size:13px;font-weight:600;color:var(--primary)}

/* ============ 图文交替 ============ */
.feature-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:center;margin-bottom:64px}
.feature-row:last-of-type{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow-light)}
.feature-title{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin-bottom:14px;color:var(--ink)}
.feature-text{font-size:15px;line-height:1.9;color:var(--muted);margin-bottom:18px}
.feature-list{display:grid;gap:10px}
.feature-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.8;color:var(--muted)}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:#fff;border:1px solid var(--stroke-light);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow-light);
}
.stat-item{text-align:center}
.stat-num{font-size:clamp(24px,2.8vw,34px);font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:2px}
.stat-label{font-size:13px;color:var(--muted);margin-top:8px}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;top:16px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(255,106,43,.5),rgba(107,61,255,.5));
}
.step{position:relative;padding-top:48px;text-align:center}
.step-dot{
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;font-size:14px;font-weight:700;
  display:grid;place-items:center;
  box-shadow:0 0 0 6px var(--light);
  font-variant-numeric:tabular-nums;
}
.step-title{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.step-text{font-size:14px;line-height:1.8;color:var(--muted)}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
details.faq{
  background:#fff;border:1px solid var(--stroke-light);border-radius:var(--r-card);
  box-shadow:var(--shadow-light);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease;
}
details.faq:hover{box-shadow:var(--shadow-light-hover)}
details.faq summary{
  cursor:pointer;list-style:none;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:color .2s ease;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"";flex:none;width:10px;height:10px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
  margin-top:-4px;
}
details.faq[open] summary{color:var(--primary)}
details.faq[open] summary::after{transform:rotate(-135deg);border-color:var(--primary);margin-top:4px}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--muted);border-top:1px solid var(--stroke-light);margin-top:0;padding-top:16px}

/* ============ 资讯列表 ============ */
.news-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--stroke-dark);
  border-radius:var(--r-card);padding:22px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--glow);border-color:rgba(255,106,43,.32)}
.news-tag{
  align-self:flex-start;font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:var(--r-badge);
  background:rgba(107,61,255,.22);color:#BFAEFF;margin-bottom:14px;
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-text{
  font-size:14px;line-height:1.75;color:var(--muted-dark);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--stroke-dark);
  font-size:13px;color:var(--muted-dark);font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--panel);border:1px dashed var(--stroke-dark);border-radius:var(--r-card);
}
.empty-state svg{width:64px;height:64px;margin:0 auto 18px;stroke:var(--muted-dark);fill:none;stroke-width:1.5}
.empty-state p{font-size:15px;color:var(--muted-dark);margin-bottom:18px}

/* ============ 订阅 CTA ============ */
.cta-section{position:relative;padding:96px 0;overflow:hidden;background:var(--bg-dark)}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.30;
}
.cta-section::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,14,31,.95),rgba(18,14,31,.78));
}
.cta-section .container{position:relative;z-index:2}
.cta-card{
  background:var(--light);color:var(--ink);
  border-radius:var(--r-hero);
  padding:44px 40px;
  box-shadow:0 24px 60px rgba(10,7,20,.55);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:44px;align-items:center;
}
.cta-card h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;margin-bottom:14px;color:var(--ink)}
.cta-card p{font-size:15px;line-height:1.85;color:var(--muted)}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.pill-option{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--stroke-light);background:#fff;
  font-size:14px;color:var(--muted);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.pill-option:hover{border-color:rgba(255,106,43,.45);color:var(--ink)}
.pill-option input{accent-color:var(--primary);margin:0}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row input[type="email"]{
  flex:1;min-width:220px;height:48px;padding:0 18px;
  border-radius:var(--r-input);border:1px solid var(--stroke-light);
  background:#fff;color:var(--ink);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input[type="email"]::placeholder{color:#A9A3C4}
.form-row input[type="email"]:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,106,43,.16)}
.form-note{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-note input{accent-color:var(--primary);margin-top:5px}
.hint-error{font-size:13px;color:var(--alert);margin-top:12px}
.hint-ok{
  font-size:13px;color:#0F7A66;background:rgba(47,216,182,.14);
  border-radius:10px;padding:10px 14px;margin-top:14px;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);border-top:1px solid var(--stroke-dark);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted-dark);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-invert);margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted-dark);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--stroke-dark);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-dark);
}
.to-top{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;display:grid;place-items:center;
  position:fixed;right:24px;bottom:24px;z-index:40;
  box-shadow:0 10px 26px rgba(255,106,43,.35);
  transition:transform .2s ease,filter .2s ease;
}
.to-top:hover{transform:translateY(-3px);filter:brightness(1.08)}
.to-top svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2.2}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{padding:48px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tile-1,.tile-2,.tile-3,.tile-4,.tile-5{grid-column:span 1}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps::before{display:none}
  .step{padding-top:0;text-align:left;padding-left:52px}
  .step-dot{left:0;transform:none;top:2px;box-shadow:none}
  .feature-row{grid-template-columns:1fr;gap:28px;margin-bottom:48px}
  .feature-row.reverse .feature-media{order:0}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:36px 28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:768px){
  .search-box{display:none}
  .nav-toggle{display:grid}
  .top-actions .btn{display:none}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}
  .countdown{padding:20px}
  .cd-block{min-width:76px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .grid-3,.grid-2,.faq-grid,.steps,.tile-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero{padding:36px 0 60px}
  .hero-cta .btn{width:100%}
  .countdown{flex-direction:column;align-items:stretch}
  .countdown-label{margin-right:0}
  .cd-list{justify-content:center}
  .cd-sep{display:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px;width:40px;height:40px}
}

/* roulang page: article */
:root{
  --primary:#FF6A2B;
  --secondary:#6B3DFF;
  --accent:#2FD8B6;
  --alert:#FF3B5C;
  --dark:#120E1F;
  --panel:#1B1430;
  --line:rgba(255,255,255,.08);
  --light:#FAF8FF;
  --ink:#1B1430;
  --muted:#6E6885;
  --light-line:#E7E2F5;
  --inv:#F5F3FF;
  --sub-inv:#A9A3C4;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#6B3DFF 100%);
  --r-card:16px;
  --r-hero:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  --shadow-glow:0 12px 32px rgba(255,106,43,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  background:var(--dark);
  color:var(--inv);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:rgba(255,106,43,.35);}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(18,14,31,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar{display:flex;align-items:center;gap:20px;padding-top:14px;padding-bottom:14px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 6px 18px rgba(107,61,255,.32);
}
.brand-mark svg{width:18px;height:18px;fill:#fff;}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em;white-space:nowrap;}
.search{
  flex:1 1 auto;max-width:430px;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:5px 5px 5px 16px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.22);background:rgba(255,255,255,.09);}
.search input{flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:var(--inv);}
.search input::placeholder{color:var(--sub-inv);}
.search button{
  flex:0 0 auto;border:0;cursor:pointer;background:var(--grad);color:#fff;
  font-size:13px;font-weight:600;padding:9px 18px;border-radius:var(--r-btn);
  transition:filter .2s ease,transform .2s ease;
}
.search button:hover{filter:brightness(1.08);transform:translateY(-1px);}
.top-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 28px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(255,106,43,.26);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-glow);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:var(--inv);}
.btn-ghost:hover{background:rgba(255,255,255,.10);transform:translateY(-1px);}
.btn-light-ghost{background:transparent;border-color:rgba(255,106,43,.40);color:var(--primary);}
.btn-light-ghost:hover{background:rgba(255,106,43,.08);transform:translateY(-1px);}
.btn svg{width:16px;height:16px;flex:0 0 auto;fill:currentColor;}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.06);cursor:pointer;place-items:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--inv);border-radius:2px;margin:3px auto;transition:.25s;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:rgba(18,14,31,.98);
  padding:16px 0 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .search{max-width:100%;margin-bottom:12px;}
.mobile-drawer .btn{width:100%;}

/* ---------- 频道 Tabs ---------- */
.channel-bar{border-top:1px solid var(--line);}
.channel-scroll{
  display:flex;gap:10px;overflow-x:auto;overflow-y:hidden;
  padding-top:10px;padding-bottom:10px;
  scroll-snap-type:x proximity;overscroll-behavior-x:contain;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;
  font-size:14px;color:var(--sub-inv);
  padding:8px 16px;border-radius:var(--r-btn);
  border:1px solid transparent;transition:.22s ease;white-space:nowrap;
}
.pill:hover{background:rgba(255,255,255,.10);color:#fff;}
.pill.active{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.30);}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding-top:24px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--sub-inv);}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .cur{color:var(--primary);font-weight:600;}

/* ---------- 主布局 ---------- */
.page-main{padding:32px 0 0;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start;}
.article-aside{position:relative;}

.article-card{
  background:var(--light);color:var(--ink);
  border-radius:var(--r-hero);padding:48px;
  box-shadow:var(--shadow-light);
}
.article-head h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.3;color:var(--ink);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:14px;line-height:1.7;color:var(--muted);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFC7E6;display:inline-block;}
.divider{height:1px;background:var(--light-line);margin:24px 0 32px;border:0;}

.article-content{max-width:780px;font-size:16px;line-height:1.9;color:var(--ink);letter-spacing:.01em;}
.article-content h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:var(--ink);
  margin:48px 0 20px;scroll-margin-top:120px;
}
.article-content h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink);margin:32px 0 14px;scroll-margin-top:120px;}
.article-content p{margin:0 0 1.2em;}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:22px;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:8px;}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;border-left:4px solid var(--primary);
  background:#F3EEFF;color:#3B3355;border-radius:0 12px 12px 0;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:16px;margin:24px auto;height:auto;}
.article-content figure{margin:24px 0;}
.article-content figure img{margin:0 auto;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(255,106,43,.35);transition:.2s ease;}
.article-content a:hover{border-bottom-color:var(--primary);}
.article-content code{background:#F0EBFF;color:#5A3BD0;padding:2px 6px;border-radius:6px;font-size:14px;word-break:break-word;}
.article-content pre{background:#1B1430;color:#EDE9FF;padding:18px 20px;border-radius:14px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7;}
.article-content pre code{background:transparent;color:inherit;padding:0;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--light-line);text-align:left;}
.article-content thead th{background:#F2EDFF;font-weight:600;color:#3B3355;}
.article-content tbody tr:nth-child(even){background:#F7F4FF;}
.article-content hr{border:0;height:1px;background:var(--light-line);margin:32px 0;}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--light-line);}
.tag-label{font-size:13px;color:var(--muted);align-self:center;margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;font-size:13px;color:#574BB0;
  background:#F1ECFF;border:1px solid var(--light-line);
  padding:7px 14px;border-radius:var(--r-btn);transition:.2s ease;
}
a.tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);}

/* 空态 */
.empty-state{text-align:center;padding:56px 0;}
.empty-state svg{width:76px;height:76px;margin:0 auto 18px;stroke:#C8BFE4;fill:none;stroke-width:1.4;}
.empty-state p{font-size:16px;color:var(--muted);margin-bottom:22px;}

/* 目录 */
.toc{
  position:sticky;top:132px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;
}
.toc h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:.02em;}
.toc-list a{
  display:block;font-size:14px;line-height:1.7;color:var(--sub-inv);
  padding:6px 0 6px 12px;border-left:2px solid transparent;transition:.2s ease;
}
.toc-list a.lv3{padding-left:26px;font-size:13px;}
.toc-list a:hover{color:#fff;}
.toc-list a.active{color:var(--accent);border-left-color:var(--accent);}
.toc-mobile{display:none;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:14px 18px;margin-bottom:20px;}
.toc-mobile summary{cursor:pointer;font-size:14px;font-weight:600;color:#fff;list-style:none;}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"▾";float:right;color:var(--sub-inv);}
.toc-mobile[open] summary::after{content:"▴";}
.toc-mobile .toc-list{margin-top:10px;}

/* ---------- 版块通用 ---------- */
.section{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:#fff;}
.section-head p{font-size:15px;color:var(--sub-inv);margin-top:8px;max-width:640px;}
.link-more{font-size:14px;color:var(--primary);border-bottom:1px solid rgba(255,106,43,.35);transition:.2s ease;white-space:nowrap;}
.link-more:hover{border-bottom-color:var(--primary);}

/* ---------- 频道推荐卡 ---------- */
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.reco-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.reco-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow);border-color:rgba(255,106,43,.35);}
.reco-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.reco-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.reco-body h3{font-size:18px;font-weight:600;line-height:1.45;color:#fff;}
.reco-body p{font-size:14px;color:var(--sub-inv);line-height:1.8;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(107,61,255,.18);color:#C7B6FF;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--secondary);}
.reco-meta{font-size:13px;color:var(--sub-inv);}

/* ---------- 返回导航 ---------- */
.back-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:40px;}
.back-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;transition:.25s ease;
}
.back-card:hover{border-color:rgba(255,106,43,.35);box-shadow:var(--shadow-glow);transform:translateY(-2px);}
.back-card strong{display:block;font-size:16px;color:#fff;margin-bottom:6px;}
.back-card span{font-size:14px;color:var(--sub-inv);}
.back-card svg{width:20px;height:20px;fill:var(--primary);flex:0 0 auto;}

/* ---------- CTA 区 ---------- */
.cta-section{padding:96px 0 0;}
.cta-card{
  background:var(--light);color:var(--ink);
  border-radius:var(--r-hero);padding:48px;
  box-shadow:0 18px 44px rgba(0,0,0,.34);
  display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:14px;}
.cta-card p{font-size:15px;color:var(--muted);line-height:1.9;}
.subscribe-form{display:flex;flex-direction:column;gap:14px;}
.field{display:flex;gap:10px;flex-wrap:wrap;}
.field input[type="email"]{
  flex:1 1 220px;height:48px;border-radius:var(--r-input);
  border:1px solid var(--light-line);background:#fff;color:var(--ink);
  padding:0 16px;font-size:15px;outline:none;transition:.2s ease;
}
.field input[type="email"]::placeholder{color:#A79FC2;}
.field input[type="email"]:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,106,43,.15);}
.field .btn{padding:0 26px;height:48px;}
.pill-group{display:flex;gap:10px;flex-wrap:wrap;}
.pill-choice{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#4A4368;
  border:1px solid var(--light-line);background:#fff;border-radius:var(--r-btn);
  padding:8px 16px;cursor:pointer;transition:.2s ease;
}
.pill-choice:hover{border-color:rgba(255,106,43,.45);}
.pill-choice input{accent-color:var(--primary);margin:0;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7;}
.check input{margin-top:4px;accent-color:var(--primary);}
.form-error{display:none;font-size:13px;color:var(--alert);margin-top:-6px;}
.form-ok{display:none;font-size:13px;color:#12856C;background:rgba(47,216,182,.16);border-radius:10px;padding:10px 14px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:#0D0A18;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--sub-inv);line-height:1.9;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--sub-inv);display:inline-block;transition:.2s ease;}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7C769A;
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:60;
  width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(255,106,43,.34);
  transition:transform .2s ease,filter .2s ease;
}
.to-top:hover{transform:translateY(-2px);filter:brightness(1.08);}
.to-top svg{width:18px;height:18px;fill:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding-top:64px;}
  .cta-section{padding-top:64px;}
  .article-card{padding:36px;}
  .cta-card{padding:36px;grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .layout{grid-template-columns:minmax(0,1fr);gap:24px;}
  .article-aside{order:-1;}
  .toc{display:none;}
  .toc-mobile{display:block;}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .search{display:none;}
  .top-actions .btn-primary{display:none;}
  .hamburger{display:grid;}
  .reco-grid{grid-template-columns:minmax(0,1fr);}
  .back-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:640px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding-top:48px;}
  .cta-section{padding-top:48px;}
  .article-card{padding:24px;border-radius:16px;}
  .cta-card{padding:24px;border-radius:16px;}
  .article-content h2{margin:32px 0 14px;}
  .article-head h1{font-size:clamp(24px,6.4vw,30px);}
  .breadcrumb{font-size:13px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category1 */
:root{
  --primary:#FF6A2B;
  --secondary:#6B3DFF;
  --accent:#2FD8B6;
  --alert:#FF3B5C;
  --ink-dark:#120E1F;
  --panel:#1B1430;
  --line-dark:rgba(255,255,255,.08);
  --paper:#FAF8FF;
  --ink:#1B1430;
  --muted:#6E6885;
  --line-light:#E7E2F5;
  --on-dark:#F5F3FF;
  --on-dark-muted:#A9A3C4;
  --r-card:16px;
  --r-hero:20px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-dark:0 8px 24px rgba(0,0,0,.35);
  --shadow-glow:0 12px 32px rgba(255,106,43,.22);
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--on-dark);
  background:var(--ink-dark);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-light{background:var(--paper);color:var(--ink)}
.section-dark{background:var(--ink-dark)}
section[id],div[id]{scroll-margin-top:120px}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(18,14,31,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark)}
.header-top{display:flex;align-items:center;gap:20px;padding-top:14px;padding-bottom:14px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--on-dark);flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:grid;place-items:center;box-shadow:0 6px 18px rgba(255,106,43,.28);flex:0 0 auto}
.brand-mark svg{width:18px;height:18px;fill:#fff}
.brand-text{letter-spacing:.02em}
.search-box{flex:1 1 auto;max-width:520px;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);border-radius:999px;padding:5px 5px 5px 18px;transition:border-color .2s,box-shadow .2s}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.30)}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:0;font-size:14px;height:34px}
.search-box input::placeholder{color:var(--on-dark-muted)}
.search-box button{border:0;cursor:pointer;border-radius:999px;padding:8px 18px;font-size:14px;background:rgba(255,255,255,.10);transition:background .2s,color .2s}
.search-box button:hover{background:rgba(255,255,255,.20)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-dark);background:rgba(255,255,255,.06);cursor:pointer;place-items:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--on-dark);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--on-dark);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.channel-bar{border-top:1px solid var(--line-dark)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scroll-snap-type:x proximity;overscroll-behavior-x:contain;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{position:relative;flex:0 0 auto;scroll-snap-align:start;white-space:nowrap;padding:8px 18px;border-radius:999px;font-size:14px;color:var(--on-dark-muted);border:1px solid transparent;transition:background .2s,color .2s,box-shadow .2s}
.pill:hover{background:rgba(255,255,255,.10);color:var(--on-dark)}
.pill.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:600;box-shadow:0 6px 18px rgba(107,61,255,.30)}
.pill.active::after{content:"";position:absolute;left:20px;right:20px;bottom:4px;height:2px;border-radius:2px;background:rgba(255,255,255,.85)}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:60;background:rgba(9,7,16,.72);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(330px,88vw);background:var(--panel);border-left:1px solid var(--line-dark);padding:26px 22px;display:flex;flex-direction:column;gap:18px;transform:translateX(14px);transition:transform .25s}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-panel .search-box{max-width:none;display:flex}
.drawer-close{align-self:flex-end;background:transparent;border:1px solid var(--line-dark);border-radius:10px;width:38px;height:38px;cursor:pointer;font-size:18px;line-height:1}
.drawer-note{font-size:13px;color:var(--on-dark-muted)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-size:15px;font-weight:600;padding:12px 28px;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,filter .2s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 8px 22px rgba(255,106,43,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 14px 32px rgba(255,106,43,.34)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:var(--on-dark)}
.btn-ghost:hover{background:rgba(255,255,255,.10);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,106,43,.42);color:var(--primary)}
.btn-outline-light:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px)}
.btn-sm{padding:9px 20px;font-size:14px}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--on-dark-muted)}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{margin:0 8px;opacity:.55}
.breadcrumb .current{color:var(--primary)}

/* ============ Hero ============ */
.hero{position:relative;padding:48px 0 80px;background-image:linear-gradient(100deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.86) 48%,rgba(18,14,31,.55) 100%),url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;border-bottom:1px solid var(--line-dark)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);background:rgba(47,216,182,.12);border:1px solid rgba(47,216,182,.30);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:20px}
.hero h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.3;letter-spacing:0;margin-bottom:20px}
.hero .lead{font-size:16px;line-height:1.9;color:var(--on-dark-muted);max-width:640px;margin-bottom:28px}
.hero-points{display:grid;gap:14px;margin-bottom:32px}
.hero-points li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--on-dark)}
.hero-points .idx{flex:0 0 auto;font-variant-numeric:tabular-nums;font-weight:700;font-size:13px;color:var(--primary);border-left:3px solid var(--primary);padding-left:10px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--line-dark);box-shadow:0 26px 60px rgba(0,0,0,.55)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-media .media-tag{position:absolute;left:16px;top:16px;font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);background:rgba(255,106,43,.92);color:#fff}
.hero-media .media-foot{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;background:linear-gradient(180deg,rgba(18,14,31,0) 0%,rgba(18,14,31,.92) 100%);font-size:13px;color:var(--on-dark-muted)}

/* ============ 通用标题 ============ */
.section-head{max-width:760px;margin-bottom:40px}
.section-head .kicker{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.06em;margin-bottom:12px;display:block}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:16px}
.section-head p{font-size:15px;color:var(--on-dark-muted);line-height:1.9}
.section-light .section-head p{color:var(--muted)}

/* ============ 步骤卡 ============ */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{background:var(--panel);border:1px solid var(--line-dark);border-radius:var(--r-card);padding:26px 24px;transition:transform .2s,box-shadow .2s,border-color .2s}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow);border-color:rgba(255,106,43,.35)}
.step-num{font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.08em;display:block;margin-bottom:14px}
.step-card h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px}
.step-card p{font-size:14px;line-height:1.85;color:var(--on-dark-muted)}

/* ============ 图文两栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:80px}
.split.reverse .split-media{order:2}
.split-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-dark);box-shadow:0 20px 48px rgba(0,0,0,.42)}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split-body h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:18px}
.split-body .desc{font-size:15px;line-height:1.9;color:var(--on-dark-muted);margin-bottom:22px}
.check-list{display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--on-dark)}
.check-list .dot{flex:0 0 auto;width:20px;height:20px;border-radius:999px;background:rgba(47,216,182,.16);color:var(--accent);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:5px}

/* ============ 对照清单 ============ */
.compare{border:1px solid var(--line-light);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-light)}
.compare-row{display:grid;grid-template-columns:.85fr 1.15fr;gap:0;border-bottom:1px solid var(--line-light);transition:background .2s}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:#F5F2FF}
.compare-key{padding:20px 24px;font-size:15px;font-weight:600;color:var(--ink);border-right:1px solid var(--line-light)}
.compare-val{padding:20px 24px;font-size:14px;line-height:1.85;color:var(--muted)}
.compare-head{background:#F2EEFF;font-size:13px;font-weight:700;color:var(--secondary);letter-spacing:.04em}
.compare-head .compare-key,.compare-head .compare-val{color:var(--secondary);font-weight:700;font-size:13px}

/* ============ 排查列表 ============ */
.tip-list{display:grid;gap:18px}
.tip-item{display:grid;grid-template-columns:56px 1fr;gap:20px;background:#fff;border:1px solid var(--line-light);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--shadow-light);transition:transform .2s,box-shadow .2s,border-color .2s}
.tip-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-light-hover);border-color:rgba(255,106,43,.40)}
.tip-index{font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.4}
.tip-item h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.5}
.tip-item p{font-size:14px;line-height:1.85;color:var(--muted)}
.tip-item p + p{margin-top:8px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-card);padding:18px 22px;box-shadow:var(--shadow-light);transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:rgba(255,106,43,.45);box-shadow:var(--shadow-light-hover)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open] summary{color:var(--primary)}
.faq-arrow{flex:0 0 auto;transition:transform .25s;color:var(--muted);font-size:12px}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-body{padding-top:12px;font-size:14.5px;line-height:1.9;color:var(--muted)}

/* ============ CTA ============ */
.cta{padding:0 0 88px}
.cta-card{position:relative;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--line-dark);padding:56px;background-image:linear-gradient(100deg,rgba(18,14,31,.96) 0%,rgba(27,20,48,.86) 60%,rgba(43,24,80,.72) 100%),url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:16px}
.cta-copy p{font-size:15px;line-height:1.9;color:var(--on-dark-muted);margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.subscribe-card{background:var(--paper);color:var(--ink);border-radius:var(--r-card);padding:30px;box-shadow:0 20px 44px rgba(0,0,0,.32)}
.subscribe-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.subscribe-card .hint{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.pill-option{position:relative;display:inline-flex;align-items:center;gap:8px;font-size:13px;border:1px solid var(--line-light);border-radius:999px;padding:8px 16px;cursor:pointer;background:#fff;transition:border-color .2s,color .2s,background .2s}
.pill-option input{position:absolute;opacity:0;pointer-events:none}
.pill-option:hover{border-color:rgba(255,106,43,.45);color:var(--primary)}
.pill-option:has(input:checked){background:rgba(255,106,43,.10);border-color:var(--primary);color:var(--primary);font-weight:600}
.field{display:grid;gap:8px;margin-bottom:14px}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field input[type="text"],.field input[type="email"]{height:48px;border-radius:var(--r-input);border:1px solid var(--line-light);background:#fff;padding:0 16px;font-size:14px;color:var(--ink);transition:border-color .2s,box-shadow .2s}
.field input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,106,43,.18)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:18px}
.consent input{margin-top:4px;accent-color:var(--primary);width:16px;height:16px}
.form-status{font-size:13px;border-radius:var(--r-badge);padding:10px 14px;margin-top:12px;display:none}
.form-status.error{display:block;background:rgba(255,59,92,.10);color:#C7203D;border:1px solid rgba(255,59,92,.35)}
.form-status.ok{display:block;background:rgba(47,216,182,.14);color:#0E7A63;border:1px solid rgba(47,216,182,.42)}
.subscribe-card .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{background:#0D0A18;border-top:1px solid var(--line-dark);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--on-dark-muted);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--on-dark);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--on-dark-muted);display:inline-block;transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);font-size:13px;color:var(--on-dark-muted)}
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:999px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 10px 26px rgba(255,106,43,.36);z-index:40;transition:transform .2s,filter .2s}
.to-top:hover{transform:translateY(-2px);filter:brightness(1.08)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .split,.cta-inner{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .split + .split{margin-top:56px}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  a,button,section[id],div[id]{scroll-margin-top:96px}
}
@media (max-width:900px){
  .search-box.top-search{display:none}
  .header-actions .btn-primary{display:none}
  .menu-toggle{display:grid}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .brand{font-size:16px}
  .brand-mark{width:32px;height:32px;border-radius:9px}
  .steps-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr}
  .compare-key{border-right:0;border-bottom:1px solid var(--line-light);padding-bottom:12px}
  .compare-val{padding-top:14px}
  .tip-item{grid-template-columns:1fr;gap:10px;padding:20px}
  .cta-card{padding:32px 22px}
  .subscribe-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb{font-size:12px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --primary:#FF6A2B;
  --primary-deep:#C4460F;
  --secondary:#6B3DFF;
  --accent:#2FD8B6;
  --alert:#FF3B5C;
  --ink-bg:#120E1F;
  --panel:#1B1430;
  --line-dark:rgba(255,255,255,.08);
  --paper:#FAF8FF;
  --ink:#1B1430;
  --ink-2:#6E6885;
  --line-light:#E7E2F5;
  --text-light:#F5F3FF;
  --text-dim:#A9A3C4;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-input:12px;
  --radius-badge:6px;
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  --shadow-glow:0 12px 32px rgba(255,106,43,.22);
  --font-cjk:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cjk);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--ink-bg);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
[id]{scroll-margin-top:120px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(18,14,31,.96);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-dark);
}
.nav-top-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(107,61,255,.35);
}
.brand-mark svg{width:17px;height:17px;fill:#fff;}
.nav-search{
  flex:1;max-width:420px;display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  border-radius:999px;padding:4px 4px 4px 16px;
  transition:border-color .2s,box-shadow .2s;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.28);}
.nav-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text-light);font-size:14px;padding:8px 0;
}
.nav-search input::placeholder{color:var(--text-dim);}
.nav-search button{
  border:0;cursor:pointer;border-radius:999px;
  background:rgba(255,255,255,.10);color:var(--text-light);
  font-size:13px;padding:8px 16px;transition:background .2s;
}
.nav-search button:hover{background:rgba(255,255,255,.18);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.06);
  cursor:pointer;color:var(--text-light);place-items:center;
}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;}

.channel-bar{border-top:1px solid var(--line-dark);}
.channel-scroll{
  display:flex;gap:8px;overflow-x:auto;
  padding-top:10px;padding-bottom:10px;
  scroll-snap-type:x proximity;
  overscroll-behavior-x:contain;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:999px;
  font-size:14px;color:var(--text-dim);
  transition:background .2s,color .2s,box-shadow .2s;
}
.pill:hover{background:rgba(255,255,255,.10);color:#fff;}
.pill.active{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;font-weight:600;
  box-shadow:0 6px 18px rgba(255,106,43,.30);
}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:60;display:none;
  background:rgba(18,14,31,.86);backdrop-filter:blur(4px);
}
.drawer.open{display:block;}
.drawer-panel{
  max-width:340px;margin-left:auto;height:100%;
  background:var(--panel);border-left:1px solid var(--line-dark);
  padding:28px 24px;display:flex;flex-direction:column;gap:20px;
}
.drawer-panel .field-label{color:var(--text-dim);font-size:13px;}
.drawer-panel input{
  width:100%;height:48px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
  color:var(--text-light);padding:0 16px;font-size:14px;outline:none;
}
.drawer-panel input:focus{border-color:var(--primary);}
.drawer-list{display:flex;flex-direction:column;gap:4px;}
.drawer-list a{
  padding:12px 14px;border-radius:12px;color:var(--text-light);font-size:15px;
  transition:background .2s;
}
.drawer-list a:hover,.drawer-list a.active{background:rgba(255,255,255,.08);}
.drawer-list a.active{color:var(--primary);}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid var(--line-dark);
  color:var(--text-light);cursor:pointer;font-size:18px;line-height:1;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:0;cursor:pointer;
  font-size:15px;font-weight:600;padding:12px 28px;
  transition:transform .22s,filter .22s,box-shadow .22s,background .22s,color .22s;
}
.btn svg{width:16px;height:16px;fill:currentColor;flex:0 0 auto;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;box-shadow:0 8px 22px rgba(255,106,43,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 32px rgba(255,106,43,.36);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:transparent;color:var(--text-light);
  border:1px solid rgba(255,255,255,.24);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);transform:translateY(-1px);}
.btn-outline{
  background:transparent;color:var(--primary);
  border:1px solid rgba(255,106,43,.40);
}
.btn-outline:hover{background:rgba(255,106,43,.08);transform:translateY(-1px);}
.btn-sm{padding:9px 20px;font-size:14px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 84px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.88) 42%,rgba(27,20,48,.62) 100%);
}
.hero::after{
  content:"";position:absolute;right:-10%;top:-30%;width:620px;height:620px;
  background:radial-gradient(circle,rgba(107,61,255,.35),transparent 65%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-dim);margin-bottom:22px;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--primary);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--accent);
  background:rgba(47,216,182,.10);
  border:1px solid rgba(47,216,182,.28);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--alert);animation:pulse 1.6s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.82);}}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.3;
  color:#fff;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text-light);font-weight:600;margin-bottom:14px;}
.hero-text{font-size:15px;line-height:1.9;color:var(--text-dim);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:var(--radius-hero);
  border:1px solid var(--line-dark);
  object-fit:cover;aspect-ratio:16/10;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--panel);border:1px solid var(--line-dark);
  border-radius:14px;padding:14px 18px;
  color:var(--text-light);font-size:13px;
  box-shadow:0 16px 36px rgba(0,0,0,.5);
}
.hero-visual .float-card strong{display:block;color:var(--accent);font-size:20px;font-variant-numeric:tabular-nums;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-dark{background:var(--ink-bg);color:var(--text-light);}
.section-panel{background:var(--panel);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);}
.section-paper{background:var(--paper);color:var(--ink);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:14px;}
.section-head p{font-size:15px;color:var(--ink-2);}
.section-dark .section-head p,.section-panel .section-head p{color:var(--text-dim);}
.section-dark .section-head h2,.section-panel .section-head h2{color:#fff;}

/* ============ 筛选 chips ============ */
.chip-bar{
  display:flex;gap:10px;overflow-x:auto;
  padding-bottom:8px;margin-bottom:34px;
  scroll-snap-type:x proximity;overscroll-behavior-x:contain;
  scrollbar-width:none;
}
.chip-bar::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  border:1px solid var(--line-light);background:#fff;color:var(--ink-2);
  border-radius:999px;padding:9px 20px;font-size:14px;cursor:pointer;
  transition:all .2s;
}
.chip:hover{border-color:rgba(255,106,43,.45);color:var(--primary);}
.chip.active{
  background:var(--panel);border-color:var(--panel);color:#fff;font-weight:600;
  box-shadow:0 8px 20px rgba(27,20,48,.18);
}

/* ============ 功能卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line-light);
  border-radius:var(--radius-card);padding:26px;
  display:flex;flex-direction:column;gap:14px;
  box-shadow:var(--shadow-light);
  transition:transform .24s,box-shadow .24s,border-color .24s;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-light-hover);border-color:rgba(255,106,43,.35);}
.feature-icon{
  width:46px;height:46px;border-radius:14px;
  background:rgba(107,61,255,.10);color:var(--secondary);
  display:grid;place-items:center;
}
.feature-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{font-size:18px;font-weight:600;line-height:1.45;}
.feature-card p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-badge);
  background:rgba(255,106,43,.12);color:var(--primary-deep);
}
.badge-violet{background:rgba(107,61,255,.12);color:var(--secondary);}
.badge-cyan{background:rgba(47,216,182,.16);color:#12745F;}
.feature-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line-light);
}
.feature-meta span{font-size:13px;color:var(--ink-2);}
.feature-link{
  font-size:13.5px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.feature-link:hover{gap:10px;}
.feature-link svg{width:14px;height:14px;fill:currentColor;}
.empty-hint{
  display:none;flex-direction:column;align-items:center;gap:14px;
  padding:56px 0;color:var(--ink-2);font-size:14.5px;
}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(255,106,43,.55),rgba(107,61,255,.45),rgba(47,216,182,.4));
}
.step{position:relative;display:flex;flex-direction:column;gap:12px;}
.step-dot{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;font-weight:700;font-size:16px;
  display:grid;place-items:center;
  box-shadow:0 10px 24px rgba(255,106,43,.28);
}
.step h3{font-size:17px;font-weight:600;color:#fff;}
.step p{font-size:14px;line-height:1.8;color:var(--text-dim);}

/* ============ 图文交替 ============ */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:36px 0;
}
.alt-row + .alt-row{border-top:1px solid var(--line-light);margin-top:24px;}
.alt-row.reverse .alt-media{order:2;}
.alt-media img{
  width:100%;border-radius:var(--radius-card);
  object-fit:cover;aspect-ratio:4/3;
  border:1px solid var(--line-light);
  box-shadow:var(--shadow-light);
}
.alt-body h3{font-size:20px;font-weight:600;margin-bottom:14px;}
.alt-body > p{font-size:15px;line-height:1.9;color:var(--ink-2);margin-bottom:20px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14.5px;line-height:1.8;color:var(--ink);
}
.check-list li svg{
  width:20px;height:20px;flex:0 0 auto;margin-top:3px;
  fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.check-list li b{font-weight:600;color:var(--ink);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
.faq-item{
  background:#fff;border:1px solid var(--line-light);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:rgba(255,106,43,.35);box-shadow:var(--shadow-light-hover);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.faq-item summary .arrow{
  flex:0 0 auto;width:22px;height:22px;
  display:grid;place-items:center;
  transition:transform .25s;
}
.faq-item summary .arrow svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.faq-item[open] summary .arrow{transform:rotate(180deg);}
.faq-body{padding:0 24px 22px;font-size:14.5px;line-height:1.9;color:var(--ink-2);}

.quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.quick-tags a{
  font-size:13.5px;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line-light);color:var(--ink-2);
  transition:all .2s;
}
.quick-tags a:hover{background:var(--panel);border-color:var(--panel);color:#fff;}

/* ============ CTA ============ */
.cta-band{
  background:var(--panel);
  border-top:1px solid var(--line-dark);
  padding:88px 0;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-8%;bottom:-40%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,106,43,.22),transparent 65%);
}
.cta-card{
  position:relative;z-index:2;
  background:var(--paper);border-radius:var(--radius-hero);
  padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:48px;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:14px;}
.cta-card > div > p{font-size:15px;line-height:1.9;color:var(--ink-2);}
.subscribe-form{display:flex;flex-direction:column;gap:18px;}
.field-label{font-size:13.5px;font-weight:600;color:var(--ink);display:block;margin-bottom:10px;}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;}
.choice{
  border:1px solid var(--line-light);background:#fff;color:var(--ink-2);
  border-radius:999px;padding:9px 20px;font-size:14px;cursor:pointer;
  transition:all .2s;
}
.choice:hover{border-color:rgba(255,106,43,.45);color:var(--primary);}
.choice.active{background:var(--panel);border-color:var(--panel);color:#fff;font-weight:600;}
.input-row{display:flex;gap:12px;}
.input-row input{
  flex:1;min-width:0;height:48px;border-radius:var(--radius-input);
  border:1px solid var(--line-light);background:#fff;
  padding:0 16px;font-size:14.5px;color:var(--ink);outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.input-row input::placeholder{color:#A8A3BC;}
.input-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,106,43,.15);}
.form-hint{font-size:13px;color:var(--ink-2);margin-top:10px;}
.form-hint.error{color:var(--alert);}
.check{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:var(--ink-2);line-height:1.7;
}
.check input{margin-top:4px;width:16px;height:16px;accent-color:var(--primary);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-bg);
  border-top:1px solid var(--line-dark);
  padding:64px 0 28px;
  color:var(--text-dim);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--text-dim);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;color:var(--text-dim);
  transition:color .2s,transform .2s;display:inline-block;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  align-items:center;
  border-top:1px solid var(--line-dark);
  padding-top:24px;font-size:13px;color:var(--text-dim);
}

/* 回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:40;
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(255,106,43,.32);
  transition:transform .2s,filter .2s;
}
.to-top:hover{transform:translateY(-2px);filter:brightness(1.08);}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .header-cta{display:none;}
  .menu-toggle{display:grid;}
  .nav-search{display:none;}
  .hero{padding:44px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-visual .float-card{left:0;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
  .alt-row{grid-template-columns:1fr;gap:28px;}
  .alt-row.reverse .alt-media{order:0;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{padding:64px 0;}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .nav-top-inner{height:64px;gap:12px;}
  .brand{font-size:15.5px;}
  .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .hero h1{font-size:26px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{flex:1 1 auto;justify-content:center;}
  .cta-card{padding:26px 20px;}
  .input-row{flex-direction:column;}
  .input-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .to-top{right:16px;bottom:16px;}
  [id]{scroll-margin-top:96px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --primary:#FF6A2B;
  --secondary:#6B3DFF;
  --accent:#2FD8B6;
  --alert:#FF3B5C;
  --dark:#120E1F;
  --panel:#1B1430;
  --line:rgba(255,255,255,.08);
  --light:#FAF8FF;
  --ink:#1B1430;
  --muted:#6E6885;
  --light-line:#E7E2F5;
  --on-dark:#F5F3FF;
  --on-dark-muted:#A9A3C4;
  --r-card:16px;
  --r-hero:20px;
  --r-input:12px;
  --shadow-dark:0 12px 32px rgba(9,6,18,.55);
  --shadow-glow:0 12px 32px rgba(255,106,43,.22);
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  --grad:linear-gradient(135deg,#FF6A2B 0%,#6B3DFF 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--on-dark);
  background:var(--dark);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(255,106,43,.32);}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:639px){.container{padding:0 16px;}}

/* ================= 头部与导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(18,14,31,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:20px;
  padding:14px 0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(107,61,255,.35);
  flex:none;
}
.brand-mark svg{width:20px;height:20px;fill:#fff;}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  color:#fff;
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--primary);}
.search-box{
  flex:1 1 auto;
  max-width:460px;
  display:flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 6px 6px 18px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,216,182,.28);
}
.search-box input{
  flex:1 1 auto;
  min-width:0;
  background:transparent;
  border:0;
  outline:none;
  font-size:14px;
  color:var(--on-dark);
}
.search-box input::placeholder{color:var(--on-dark-muted);}
.search-box button{
  flex:none;
  border:0;
  cursor:pointer;
  border-radius:999px;
  padding:8px 18px;
  font-size:13px;
  font-weight:600;
  color:#fff;
  background:rgba(255,255,255,.12);
  transition:background-color .2s ease;
}
.search-box button:hover{background:var(--primary);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.hamburger{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  cursor:pointer;
  place-items:center;
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  background:#fff;
  border-radius:2px;
  position:relative;
}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,border-color .2s ease,filter .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 22px rgba(255,106,43,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-glow);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.24);
  color:var(--on-dark);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);}
.btn-ghost-dark{
  background:transparent;
  border-color:rgba(255,106,43,.4);
  color:var(--primary);
}
.btn-ghost-dark:hover{background:rgba(255,106,43,.10);}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

.channel-bar{border-top:1px solid var(--line);background:rgba(27,20,48,.55);}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 32px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  overscroll-behavior-x:contain;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
@media (max-width:1023px){.channel-scroll{padding:10px 24px;}}
@media (max-width:639px){.channel-scroll{padding:10px 16px;}}
.pill{
  flex:none;
  scroll-snap-align:start;
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  color:var(--on-dark-muted);
  background:transparent;
  border:1px solid transparent;
  position:relative;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.pill:hover{background:rgba(255,255,255,.10);color:#fff;}
.pill.active{
  background:var(--grad);
  color:#fff;
  font-weight:600;
  box-shadow:0 8px 20px rgba(107,61,255,.28);
}
.pill.active::after{
  content:"";
  position:absolute;
  left:18px;right:18px;bottom:-10px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(255,106,43,.9);
}
@media (max-width:1023px){
  .search-box{display:none;}
  .header-actions .btn{display:none;}
  .hamburger{display:grid;}
  .pill.active::after{bottom:-8px;}
}
.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(18,14,31,.98);
  padding:18px 0 22px;
}
.drawer.open{display:block;}
.drawer .search-box{max-width:none;margin-bottom:14px;}
.drawer-links{display:grid;gap:10px;margin-bottom:16px;}
.drawer-links a{
  padding:12px 16px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:15px;
}
.drawer-links a:hover{background:rgba(255,255,255,.10);}

/* ================= 通用板块节奏 ================= */
.section{padding:88px 0;}
.section-dark{background:var(--dark);}
.section-panel{background:var(--panel);}
.section-light{background:var(--light);color:var(--ink);}
@media (max-width:1023px){.section{padding:64px 0;}}
@media (max-width:639px){.section{padding:48px 0;}}

.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{color:var(--on-dark-muted);font-size:15px;}
.section-light .section-head p{color:var(--muted);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:20px;height:2px;border-radius:2px;background:var(--primary);
}

/* ================= 面包屑 ================= */
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--on-dark-muted);
  padding:22px 0 0;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(255,255,255,.24);}
.crumb .current{color:var(--primary);}
@media (max-width:639px){.crumb .hide-sm{display:none;}}

/* ================= Hero ================= */
.hero{
  position:relative;
  padding:52px 0 72px;
  background-image:
    linear-gradient(100deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.86) 46%,rgba(18,14,31,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(107,61,255,.34),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;gap:36px;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);align-items:start;}
@media (max-width:1023px){.hero-inner{grid-template-columns:1fr;gap:28px;}}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:700;
  line-height:1.3;
  color:#fff;
  margin-bottom:18px;
}
.hero h1 .accent{color:var(--primary);}
.hero-sub{
  font-size:16px;
  color:var(--on-dark-muted);
  max-width:640px;
  margin-bottom:26px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  font-size:13px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--on-dark);
}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hot-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-hero);
  padding:24px;
  box-shadow:var(--shadow-dark);
}
.hot-panel h2{
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:6px;
}
.hot-panel p{font-size:13px;color:var(--on-dark-muted);margin-bottom:16px;}
.hot-list{display:flex;flex-wrap:wrap;gap:10px;}
.hot-list a{
  font-size:13px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--on-dark);
}
.hot-list a:hover{background:rgba(255,106,43,.16);border-color:rgba(255,106,43,.45);color:#fff;}

/* ================= 数字统计条 ================= */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:34px;
}
.stat{
  border-radius:var(--r-card);
  border:1px solid var(--light-line);
  background:#fff;
  padding:20px 22px;
  box-shadow:var(--shadow-light);
}
.stat .value{font-size:28px;font-weight:700;color:var(--ink);line-height:1.2;}
.stat .value small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat .label{font-size:13px;color:var(--muted);margin-top:6px;}
@media (max-width:639px){.stat-bar{grid-template-columns:1fr;}}

/* ================= FAQ ================= */
.faq-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(0,1fr);gap:32px;align-items:start;}
@media (max-width:1023px){.faq-layout{grid-template-columns:1fr;}}
.faq-grid{display:grid;gap:14px;}
@media (min-width:768px){.faq-grid{grid-template-columns:1fr 1fr;}}
.faq-group{
  grid-column:1 / -1;
  font-size:14px;
  font-weight:700;
  color:var(--secondary);
  letter-spacing:.04em;
  padding-top:12px;
}
.faq-group:first-child{padding-top:0;}
.faq-item{
  border:1px solid var(--light-line);
  background:#fff;
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-light);border-color:rgba(107,61,255,.28);}
.faq-item[open]{border-color:rgba(255,106,43,.45);box-shadow:var(--shadow-light-hover);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:16px 18px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.faq-arrow{
  margin-left:auto;
  flex:none;
  width:20px;height:20px;
  margin-top:2px;
  color:var(--muted);
  transition:transform .25s ease,color .2s ease;
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-body{
  padding:0 18px 18px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--muted);
}
.faq-body strong{color:var(--ink);font-weight:600;}

/* ================= 侧栏 ================= */
.side-card{
  position:sticky;
  top:132px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  color:var(--on-dark);
}
@media (max-width:1023px){.side-card{position:static;}}
.side-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px;}
.side-card p{font-size:14px;color:var(--on-dark-muted);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--on-dark-muted);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;
  border-radius:var(--r-input);
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  padding:12px 14px;
  font-size:14px;
  color:var(--on-dark);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input{height:48px;padding:0 14px;}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(169,163,196,.75);}
.field input:focus,.field textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,216,182,.24);
}
.field .error-text{display:none;font-size:12.5px;color:var(--alert);margin-top:8px;}
.field.has-error input,.field.has-error textarea{border-color:var(--alert);}
.field.has-error .error-text{display:block;}
.side-note{
  margin-top:16px;
  font-size:13px;
  color:var(--on-dark-muted);
  border-top:1px solid var(--line);
  padding-top:14px;
  line-height:1.8;
}
.side-note b{color:var(--accent);font-weight:600;}

/* ================= 自查流程 ================= */
.check-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:36px;
  align-items:center;
}
@media (max-width:1023px){.check-wrap{grid-template-columns:1fr;gap:26px;}}
.check-figure{
  border-radius:var(--r-hero);
  overflow:hidden;
  border:1px solid var(--light-line);
  box-shadow:var(--shadow-light);
  background:#fff;
}
.check-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.check-figure figcaption{
  font-size:13px;
  color:var(--muted);
  padding:12px 16px;
  text-align:center;
  border-top:1px solid var(--light-line);
}
.check-steps{display:grid;gap:14px;}
.step{
  display:flex;
  gap:16px;
  padding:18px 20px;
  border-radius:var(--r-card);
  background:#fff;
  border:1px solid var(--light-line);
  box-shadow:var(--shadow-light);
  transition:transform .2s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-light-hover);}
.step .idx{
  flex:none;
  width:34px;height:34px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:14px;
  font-weight:700;
  color:#fff;
  background:var(--grad);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px;}
.step p{font-size:14px;color:var(--muted);}

/* ================= 频道行列表 ================= */
.channel-rows{border-top:1px solid var(--line);}
.channel-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:18px;
  align-items:center;
  padding:22px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.channel-row:hover{background:rgba(255,255,255,.04);padding-left:12px;}
.channel-row h3{font-size:17px;font-weight:600;color:#fff;margin-bottom:6px;}
.channel-row p{font-size:14px;color:var(--on-dark-muted);}
.channel-row .tag{
  display:inline-block;
  font-size:12px;
  padding:3px 10px;
  border-radius:6px;
  background:rgba(47,216,182,.14);
  color:var(--accent);
  margin-left:10px;
  vertical-align:middle;
  font-weight:600;
}
.channel-row .go{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  white-space:nowrap;
}
@media (max-width:639px){
  .channel-row{grid-template-columns:1fr;gap:10px;}
}

/* ================= CTA 订阅 ================= */
.cta-band{
  position:relative;
  background-image:
    linear-gradient(180deg,rgba(18,14,31,.96) 0%,rgba(18,14,31,.86) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
}
.cta-card{
  background:var(--light);
  color:var(--ink);
  border-radius:var(--r-hero);
  padding:40px;
  box-shadow:0 24px 60px rgba(9,6,18,.55);
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:36px;
  align-items:center;
}
@media (max-width:1023px){.cta-card{grid-template-columns:1fr;padding:30px;gap:24px;}}
.cta-card h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin-bottom:12px;}
.cta-card p{font-size:14.5px;color:var(--muted);}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0;}
.pill-option{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--light-line);
  background:#fff;
  font-size:13.5px;
  color:var(--muted);
  cursor:pointer;
  transition:all .2s ease;
}
.pill-option:hover{border-color:rgba(255,106,43,.5);color:var(--primary);}
.pill-option input{position:absolute;opacity:0;pointer-events:none;}
.pill-option:has(input:checked){
  background:var(--grad);
  border-color:transparent;
  color:#fff;
  font-weight:600;
  box-shadow:0 8px 20px rgba(255,106,43,.24);
}
.cta-form-row{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form-row input{
  flex:1 1 220px;
  height:48px;
  border-radius:var(--r-input);
  border:1px solid var(--light-line);
  background:#fff;
  padding:0 16px;
  font-size:14px;
  color:var(--ink);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form-row input::placeholder{color:#A9A3C4;}
.cta-form-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,106,43,.18);}
.agree{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
}
.agree input{width:16px;height:16px;margin-top:5px;accent-color:#FF6A2B;}
.success-bar{
  display:none;
  margin-top:14px;
  padding:10px 14px;
  border-radius:10px;
  background:rgba(47,216,182,.16);
  border:1px solid rgba(47,216,182,.4);
  color:#12866F;
  font-size:13.5px;
}
.success-bar.show{display:block;}

/* ================= 页脚 ================= */
.site-footer{
  background:var(--dark);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:36px;
  padding-bottom:44px;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{
  font-size:14px;
  color:var(--on-dark-muted);
  margin-top:16px;
  max-width:340px;
}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;
  color:var(--on-dark-muted);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--on-dark-muted);
}
.to-top{
  position:fixed;
  right:22px;bottom:22px;
  width:46px;height:46px;
  border-radius:50%;
  background:var(--grad);
  display:grid;place-items:center;
  color:#fff;
  box-shadow:0 10px 26px rgba(255,106,43,.32);
  z-index:40;
  transition:transform .2s ease,filter .2s ease;
}
.to-top:hover{transform:translateY(-3px);filter:brightness(1.08);}
.to-top svg{width:18px;height:18px;fill:#fff;}

[id]{scroll-margin-top:120px;}
@media (max-width:1023px){[id]{scroll-margin-top:96px;}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --primary:#FF6A2B;--secondary:#6B3DFF;--accent:#2FD8B6;--alert:#FF3B5C;
  --deep:#120E1F;--panel:#1B1430;--line-dark:rgba(255,255,255,.08);
  --light:#FAF8FF;--ink:#1B1430;--muted:#6E6885;--line-light:#E7E2F5;
  --text-inv:#F5F3FF;--dim:#A9A3C4;
  --r-card:16px;--r-hero:20px;--r-btn:999px;--r-input:12px;--r-badge:6px;
  --shadow-light:0 8px 24px rgba(27,20,48,.08);
  --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  --glow:0 12px 32px rgba(255,106,43,.22);
  --maxw:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--deep);color:var(--text-inv);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:.01em;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,transform .2s ease}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
[id]{scroll-margin-top:120px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(18,14,31,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark)}
.header-top{display:flex;align-items:center;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:grid;place-items:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px;fill:#fff}
.brand-text{font-size:18px;font-weight:700;color:var(--text-inv);white-space:nowrap}
.brand:hover .brand-text{color:var(--primary)}
.search{position:relative;flex:1 1 auto;max-width:380px}
.search input{width:100%;height:42px;border-radius:var(--r-btn);background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:var(--text-inv);padding:0 46px 0 18px;font-size:14px;transition:border-color .2s,box-shadow .2s}
.search input::placeholder{color:var(--dim)}
.search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.35)}
.search button{position:absolute;right:5px;top:5px;width:32px;height:32px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:grid;place-items:center;font-size:13px}
.search button:hover{filter:brightness(1.08)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);color:var(--text-inv);font-size:17px}
.burger:hover{background:rgba(255,255,255,.10)}

.channel-bar{background:rgba(27,20,48,.62);border-top:1px solid var(--line-dark)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scroll-snap-type:x proximity;overscroll-behavior-x:contain;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{flex:0 0 auto;padding:8px 18px;border-radius:var(--r-btn);font-size:14px;color:var(--dim);border:1px solid transparent;scroll-snap-align:start;white-space:nowrap}
.pill:hover{background:rgba(255,255,255,.10);color:var(--text-inv)}
.pill.active{position:relative;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:600}
.pill.active::after{content:"";position:absolute;left:18px;right:18px;bottom:-11px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 10px rgba(47,216,182,.85)}

/* ============ DRAWER ============ */
.drawer{position:fixed;inset:0;z-index:70;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(9,7,16,.72)}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(330px,88vw);background:var(--panel);border-left:1px solid var(--line-dark);padding:22px;overflow-y:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head strong{font-size:16px;color:var(--text-inv)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);color:var(--text-inv)}
.drawer-nav a{display:block;padding:12px 14px;border-radius:12px;color:var(--dim);font-size:15px;border:1px solid transparent}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:var(--text-inv)}
.drawer-nav a.active{background:linear-gradient(135deg,rgba(255,106,43,.9),rgba(107,61,255,.9));color:#fff;font-weight:600}
.drawer-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-dark)}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;line-height:1.4;transition:transform .2s,box-shadow .2s,filter .2s,background .2s,color .2s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,106,43,.35);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{border-color:rgba(255,255,255,.24);color:var(--text-inv);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff}
.btn-outline{border-color:rgba(255,106,43,.40);color:var(--primary);background:#fff}
.btn-outline:hover{background:rgba(255,106,43,.08);transform:translateY(-1px)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;padding:28px 0 84px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.90) 42%,rgba(18,14,31,.60) 100%)}
.hero>.container{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px;color:var(--dim);padding:6px 0 34px}
.crumb a{color:var(--dim)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .current{color:var(--primary);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-badge);background:rgba(255,106,43,.14);color:var(--primary);font-size:13px;font-weight:600;margin-bottom:20px}
.eyebrow i{font-size:12px}
.hero h1{font-size:clamp(28px,4.2vw,44px);line-height:1.3;color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--accent);font-weight:600;margin-bottom:16px}
.hero-lead{font-size:16px;color:var(--dim);max-width:640px;margin-bottom:26px}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.quick-tags a{font-size:13px;padding:7px 15px;border-radius:var(--r-btn);border:1px solid var(--line-dark);color:var(--dim);background:rgba(255,255,255,.04)}
.quick-tags a:hover{color:#fff;background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;padding-top:24px;border-top:1px solid var(--line-dark)}
.hero-stats div span{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.2}
.hero-stats div small{font-size:13px;color:var(--dim)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-hero);border:1px solid var(--line-dark);box-shadow:0 24px 60px rgba(0,0,0,.5)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 10px;border-radius:var(--r-badge);font-weight:600}
.badge-live{position:absolute;top:14px;left:14px;background:rgba(255,59,92,.18);color:#FF7A90}
.badge-live::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--alert);animation:pulse 1.6s infinite}
.badge-soon{background:rgba(255,106,43,.18);color:#FFA37A}
.badge-plan{background:rgba(107,61,255,.20);color:#B9A6FF}
.badge-done{background:rgba(255,255,255,.10);color:var(--dim)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,59,92,.65)}70%{box-shadow:0 0 0 9px rgba(255,59,92,0)}100%{box-shadow:0 0 0 0 rgba(255,59,92,0)}}
@media (prefers-reduced-motion:reduce){.badge-live::before{animation:none}}

/* ============ SECTIONS ============ */
.section{padding:88px 0}
.section-dark{background:var(--deep)}
.section-light{background:var(--light);color:var(--ink)}
.section-light h2,.section-light h3,.section-light h4{color:var(--ink)}
.section-light p{color:var(--muted)}
.section-head{max-width:780px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--primary);background:rgba(255,106,43,.12);padding:5px 12px;border-radius:var(--r-badge);margin-bottom:16px}
.section-light .section-tag{background:rgba(255,106,43,.12);color:#D4531A}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.section-head p{font-size:16px;color:var(--dim)}
.section-light .section-head p{color:var(--muted)}

/* ============ COMPARE LIST ============ */
.compare{border-top:1px solid var(--line-light)}
.compare-row{display:grid;grid-template-columns:300px 1fr;gap:36px;padding:26px 14px;border-bottom:1px solid var(--line-light);transition:background .2s,transform .2s}
.compare-row:hover{background:#fff;transform:translateX(2px)}
.compare-key{display:flex;gap:12px;align-items:flex-start}
.compare-key .k-num{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:4px}
.compare-key strong{font-size:17px;font-weight:700;color:var(--ink);line-height:1.6}
.compare-val{font-size:15.5px;color:var(--muted)}
.compare-val b{color:var(--ink);font-weight:600}

/* ============ TIPS GRID ============ */
.tips-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.tip-card{background:var(--panel);border:1px solid var(--line-dark);border-radius:var(--r-card);padding:28px;transition:transform .22s,box-shadow .22s,border-color .22s}
.tip-card:hover{transform:translateY(-2px);border-color:rgba(255,106,43,.45);box-shadow:var(--glow)}
.tip-num{font-size:30px;font-weight:700;color:var(--primary);letter-spacing:.02em;line-height:1}
.tip-card h3{font-size:19px;color:var(--text-inv);margin:14px 0 10px}
.tip-card p{font-size:15px;color:var(--dim)}

/* ============ FEATURE ROWS ============ */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.feature+.feature{margin-top:72px}
.feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-hero);box-shadow:var(--shadow-light)}
.feature.reverse .feature-media{order:2}
.feature-body h3{font-size:clamp(20px,2vw,24px);margin-bottom:14px}
.feature-list{margin-top:20px;display:grid;gap:12px}
.feature-list li{display:flex;gap:11px;align-items:flex-start;font-size:15.5px;color:var(--muted)}
.feature-list li i{color:var(--primary);font-size:14px;margin-top:6px}
.feature-note{margin-top:22px;padding:14px 18px;border-left:4px solid var(--primary);background:#fff;border-radius:0 12px 12px 0;font-size:14.5px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{background:rgba(255,255,255,.04);border:1px solid var(--line-dark);border-radius:var(--r-card);overflow:hidden;transition:border-color .22s,background .22s}
.faq-item:hover{border-color:rgba(255,106,43,.4)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--text-inv);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{flex:0 0 auto;color:var(--dim);transition:transform .25s,color .25s}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary)}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--dim)}
.faq-body a{color:var(--accent)}
.faq-body a:hover{color:var(--primary)}

/* ============ CTA ============ */
.cta-wrap{position:relative;padding:88px 0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat}
.cta-wrap::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,14,31,.90),rgba(18,14,31,.95))}
.cta-wrap>.container{position:relative;z-index:1}
.cta-card{background:var(--light);color:var(--ink);border-radius:var(--r-hero);padding:44px;box-shadow:0 26px 64px rgba(0,0,0,.42);display:grid;grid-template-columns:1.02fr .98fr;gap:44px}
.cta-card h2{font-size:clamp(22px,2.3vw,28px);margin-bottom:12px}
.cta-card p{color:var(--muted);font-size:15.5px}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--muted)}
.cta-points li i{color:var(--accent);margin-top:6px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input[type=email]{width:100%;height:48px;border-radius:var(--r-input);border:1px solid var(--line-light);background:#fff;color:var(--ink);padding:0 16px;transition:border-color .2s,box-shadow .2s}
.field input[type=email]::placeholder{color:#A9A3C4}
.field input[type=email]:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,216,182,.35)}
.pill-group{display:flex;flex-wrap:wrap;gap:10px}
.choice{position:relative;display:inline-flex}
.choice input{position:absolute;opacity:0;width:0;height:0}
.choice span{display:inline-block;padding:9px 18px;border-radius:var(--r-btn);border:1px solid var(--line-light);background:#fff;color:var(--muted);font-size:14px;transition:.2s}
.choice input:checked+span{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-color:transparent;font-weight:600}
.choice input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin:6px 0 20px}
.agree input{margin-top:5px;accent-color:var(--primary);width:16px;height:16px}
.agree a{color:var(--primary)}
.form-tip{margin-top:14px;font-size:14px;display:none}
.form-tip.ok{display:block;color:#0E7A63;background:rgba(47,216,182,.16);border-radius:10px;padding:11px 14px}
.form-tip.err{display:block;color:var(--alert)}

/* ============ FOOTER ============ */
.site-footer{background:var(--deep);border-top:1px solid var(--line-dark);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--dim);margin-top:16px;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-inv);margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--dim);display:inline-block}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding:22px 0 32px;border-top:1px solid var(--line-dark);font-size:13px;color:var(--dim)}
.to-top{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:0 12px 28px rgba(255,106,43,.35);opacity:0;visibility:hidden;transition:.25s;z-index:40}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px)}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero{padding-bottom:64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{max-width:620px}
  .cta-card{grid-template-columns:1fr;padding:34px}
  .tips-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .header-top{padding:12px 0}
  .search{display:none}
  .header-actions .btn{display:none}
  .burger{display:grid;place-items:center}
  [id]{scroll-margin-top:96px}
  .hero{padding:18px 0 48px}
  .crumb{padding-bottom:22px;font-size:13px}
  .hero-cta .btn{flex:1 1 100%}
  .hero-stats{gap:22px}
  .hero-stats div span{font-size:20px}
  .compare-row{grid-template-columns:1fr;gap:10px;padding:20px 4px}
  .feature{grid-template-columns:1fr;gap:24px}
  .feature.reverse .feature-media{order:0}
  .feature+.feature{margin-top:44px}
  .cta-wrap{padding:56px 0}
  .cta-card{padding:26px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .hero-sub{font-size:15.5px}
  .quick-tags a{font-size:12.5px;padding:6px 12px}
  .cta-card h2{font-size:21px}
}

/* roulang page: category4 */
:root{
    --primary:#FF6A2B;
    --secondary:#6B3DFF;
    --accent:#2FD8B6;
    --alert:#FF3B5C;
    --dark:#120E1F;
    --panel:#1B1430;
    --line-dark:rgba(255,255,255,.08);
    --light:#FAF8FF;
    --ink:#1B1430;
    --muted:#6E6885;
    --line-light:#E7E2F5;
    --on-dark:#F5F3FF;
    --on-dark-muted:#A9A3C4;
    --radius-card:16px;
    --radius-hero:20px;
    --radius-pill:999px;
    --shadow-dark:0 12px 32px rgba(255,106,43,.22);
    --shadow-light:0 8px 24px rgba(27,20,48,.08);
    --shadow-light-hover:0 16px 36px rgba(27,20,48,.12);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.9;
    letter-spacing:.01em;
    color:var(--ink);
    background:var(--light);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul{list-style:none;padding:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
  .container{max-width:1200px;margin:0 auto;padding:0 32px}
  .num{font-variant-numeric:tabular-nums}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(18,14,31,.94);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line-dark);
  }
  .nav-main{display:flex;align-items:center;gap:24px;height:74px}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    display:grid;place-items:center;
    box-shadow:0 6px 18px rgba(255,106,43,.28);
  }
  .brand-mark svg{width:18px;height:18px;fill:#fff}
  .brand-text{font-size:17px;font-weight:700;color:var(--on-dark);letter-spacing:.02em}
  .nav-search{position:relative;flex:1;max-width:420px}
  .nav-search input{
    width:100%;height:44px;border-radius:var(--radius-pill);
    border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.06);
    color:var(--on-dark);padding:0 104px 0 18px;
    transition:border-color .2s, box-shadow .2s, background .2s;
  }
  .nav-search input::placeholder{color:var(--on-dark-muted)}
  .nav-search input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(47,216,182,.28);
    background:rgba(255,255,255,.09);
  }
  .nav-search button{
    position:absolute;right:4px;top:4px;height:36px;
    padding:0 18px;border:0;border-radius:var(--radius-pill);
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    color:#fff;font-size:14px;font-weight:600;cursor:pointer;
    transition:filter .2s, transform .2s;
  }
  .nav-search button:hover{filter:brightness(1.08)}
  .nav-search button:active{transform:translateY(1px)}
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border:0;cursor:pointer;border-radius:var(--radius-pill);
    font-size:15px;font-weight:600;padding:12px 28px;
    transition:transform .2s, box-shadow .2s, filter .2s, background .2s, border-color .2s, color .2s;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    color:#fff;
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-dark)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98)}
  .btn-ghost{
    background:transparent;color:var(--on-dark);
    border:1px solid rgba(255,255,255,.24);
  }
  .btn-ghost:hover{background:rgba(255,255,255,.10)}
  .btn-ghost-light{
    background:transparent;color:var(--ink);
    border:1px solid rgba(255,106,43,.40);
  }
  .btn-ghost-light:hover{background:rgba(255,106,43,.08);border-color:var(--primary)}
  .btn svg{width:16px;height:16px;fill:currentColor}
  .nav-burger{
    display:none;width:44px;height:44px;border-radius:12px;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
    cursor:pointer;place-items:center;
  }
  .nav-burger span{display:block;width:18px;height:2px;background:var(--on-dark);border-radius:2px;position:relative}
  .nav-burger span::before,.nav-burger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--on-dark);border-radius:2px;
  }
  .nav-burger span::before{top:-6px}
  .nav-burger span::after{top:6px}

  .channel-bar{background:rgba(27,20,48,.94);border-top:1px solid var(--line-dark)}
  .channel-scroll{
    display:flex;align-items:center;gap:10px;height:54px;
    overflow-x:auto;flex-wrap:nowrap;
    scroll-snap-type:x proximity;overscroll-behavior-x:contain;
    scrollbar-width:none;
  }
  .channel-scroll::-webkit-scrollbar{display:none}
  .pill{
    flex:0 0 auto;scroll-snap-align:start;
    display:inline-flex;align-items:center;
    padding:8px 18px;border-radius:var(--radius-pill);
    font-size:14px;font-weight:500;color:var(--on-dark-muted);
    border:1px solid transparent;position:relative;
    transition:background .2s,color .2s,box-shadow .2s;
  }
  .pill:hover{background:rgba(255,255,255,.10);color:var(--on-dark)}
  .pill.active{
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    color:#fff;font-weight:600;
  }
  .pill.active::after{
    content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2px;
    border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(255,106,43,.9);
  }

  .drawer{
    display:none;background:var(--panel);border-top:1px solid var(--line-dark);
    padding:20px 0 26px;
  }
  .drawer.open{display:block}
  .drawer .nav-search{max-width:none;margin-bottom:14px}
  .drawer .btn{width:100%}

  /* ============ Hero ============ */
  .hero{
    position:relative;overflow:hidden;
    background:var(--dark);color:var(--on-dark);
    padding:68px 0 76px;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;opacity:.34;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(18,14,31,.97) 0%,rgba(18,14,31,.80) 46%,rgba(107,61,255,.24) 100%);
  }
  .hero .container{position:relative;z-index:2}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:14px;color:var(--on-dark-muted);margin-bottom:26px;
  }
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.5}
  .breadcrumb .current{color:var(--primary);font-weight:600}
  .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:#FFD9C4;
    background:rgba(255,106,43,.16);border:1px solid rgba(255,106,43,.36);
    border-radius:6px;padding:5px 12px;margin-bottom:20px;
  }
  .hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
  .hero h1{
    font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.3;
    color:#fff;letter-spacing:0;
  }
  .hero h1 em{font-style:normal;color:var(--primary)}
  .hero-sub{
    margin-top:18px;font-size:17px;color:#D6D1E8;max-width:560px;line-height:1.85;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px}
  .hero-meta div{font-size:14px;color:var(--on-dark-muted)}
  .hero-meta strong{display:block;font-size:20px;font-weight:700;color:var(--on-dark);line-height:1.4}
  .hero-card{
    background:var(--panel);border:1px solid var(--line-dark);
    border-radius:var(--radius-hero);overflow:hidden;
    box-shadow:0 20px 50px rgba(0,0,0,.35);
  }
  .hero-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .hero-card-body{padding:22px 24px 26px}
  .hero-card-body h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:8px}
  .hero-card-body p{font-size:14px;color:var(--on-dark-muted);line-height:1.8}
  .hero-card-row{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    margin-top:18px;padding-top:16px;border-top:1px solid var(--line-dark);
    font-size:14px;color:var(--on-dark-muted);
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px;
  }
  .badge-live{background:rgba(255,59,92,.16);color:#FF8FA3}
  .badge-soon{background:rgba(255,106,43,.16);color:#FFB183}
  .badge-done{background:rgba(255,255,255,.08);color:var(--on-dark-muted)}
  .pulse{
    width:8px;height:8px;border-radius:50%;background:var(--alert);
    animation:beat 1.6s infinite;
  }
  @keyframes beat{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
  @media (prefers-reduced-motion:reduce){.pulse{animation:none}}

  /* ============ 通用板块 ============ */
  .section{padding:88px 0}
  .section-dark{background:var(--dark);color:var(--on-dark)}
  .section-light{background:var(--light);color:var(--ink)}
  .section-head{max-width:760px;margin-bottom:44px}
  .eyebrow{
    display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--primary);margin-bottom:12px;
  }
  .section-head h2{
    font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;
  }
  .section-dark .section-head h2{color:#fff}
  .section-head p{margin-top:14px;font-size:16px;line-height:1.9}
  .section-dark .section-head p{color:var(--on-dark-muted)}
  .section-light .section-head p{color:var(--muted)}

  .stat-bar{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    padding:24px 28px;border-radius:var(--radius-card);
    background:var(--panel);border:1px solid var(--line-dark);
  }
  .stat-bar div{border-left:3px solid rgba(255,106,43,.55);padding-left:16px}
  .stat-bar span{display:block;font-size:13px;color:var(--on-dark-muted)}
  .stat-bar strong{display:block;font-size:24px;font-weight:700;color:var(--on-dark);line-height:1.5}
  .stat-bar em{font-style:normal;font-size:13px;color:var(--on-dark-muted);margin-left:4px}

  /* ============ 时间轴 ============ */
  .filter-bar{
    display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;
    scroll-snap-type:x proximity;scrollbar-width:none;margin-bottom:34px;
  }
  .filter-bar::-webkit-scrollbar{display:none}
  .filter{
    flex:0 0 auto;scroll-snap-align:start;cursor:pointer;
    padding:8px 18px;border-radius:var(--radius-pill);font-size:14px;
    background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
    color:var(--on-dark-muted);transition:background .2s,color .2s,border-color .2s;
  }
  .filter:hover{background:rgba(255,255,255,.12);color:var(--on-dark)}
  .filter.active{
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    color:#fff;border-color:transparent;font-weight:600;
  }
  .timeline{position:relative;padding-top:6px}
  .timeline::before{
    content:"";position:absolute;left:15px;top:14px;bottom:20px;width:2px;
    background:linear-gradient(180deg,rgba(255,106,43,.75),rgba(107,61,255,.4),rgba(255,255,255,0));
  }
  .tl-item{position:relative;padding-left:56px;margin-bottom:26px}
  .tl-node{
    position:absolute;left:6px;top:26px;width:20px;height:20px;border-radius:50%;
    background:var(--dark);border:2px solid var(--primary);
    box-shadow:0 0 0 4px rgba(255,106,43,.14);
  }
  .tl-node.major{background:linear-gradient(135deg,var(--primary),var(--secondary));border-color:transparent;box-shadow:0 0 0 4px rgba(107,61,255,.20)}
  .tl-card{
    background:var(--panel);border:1px solid var(--line-dark);
    border-radius:var(--radius-card);padding:24px 26px;
    transition:transform .25s, box-shadow .25s, border-color .25s;
  }
  .tl-card:hover{transform:translateY(-2px);border-color:rgba(255,106,43,.42);box-shadow:0 12px 32px rgba(255,106,43,.20)}
  .tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
  .tl-ver{font-size:20px;font-weight:700;color:#fff}
  .tl-date{font-size:14px;color:var(--on-dark-muted)}
  .tl-note{margin-top:10px;font-size:15px;color:#CFC9E4;line-height:1.85}
  .tl-list{margin-top:14px;display:grid;gap:10px}
  .tl-list li{display:flex;gap:10px;font-size:15px;line-height:1.8;color:#D9D5EA}
  .tag{
    flex:0 0 auto;align-self:flex-start;font-size:12px;font-weight:600;
    padding:2px 8px;border-radius:6px;margin-top:5px;white-space:nowrap;
  }
  .tag-new{background:rgba(47,216,182,.14);color:var(--accent)}
  .tag-opt{background:rgba(107,61,255,.22);color:#C0AEFF}
  .tag-fix{background:rgba(255,106,43,.16);color:#FFB183}

  /* ============ 图文两栏 ============ */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
  .split.reverse .split-media{order:2}
  .split-media img{
    width:100%;aspect-ratio:16/9;object-fit:cover;
    border-radius:var(--radius-card);box-shadow:var(--shadow-light);
  }
  .split-media figcaption{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}
  .split-body h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35}
  .split-body p{margin-top:16px;color:var(--muted);font-size:16px}
  .def-list{margin-top:26px;display:grid;gap:18px}
  .def-item{
    border-left:3px solid var(--primary);padding:4px 0 4px 18px;
  }
  .def-item h3{font-size:17px;font-weight:600;color:var(--ink)}
  .def-item p{margin-top:6px;font-size:15px;color:var(--muted);line-height:1.8}
  .def-item.sub{border-left-color:var(--secondary)}
  .def-item.acc{border-left-color:var(--accent)}

  /* ============ FAQ ============ */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .qa{
    background:#fff;border:1px solid var(--line-light);border-radius:14px;
    padding:18px 22px;box-shadow:var(--shadow-light);
    transition:box-shadow .25s, border-color .25s;
  }
  .qa:hover{box-shadow:var(--shadow-light-hover)}
  .qa[open]{border-color:rgba(255,106,43,.35)}
  .qa summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;
    justify-content:space-between;gap:14px;
    font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  }
  .qa summary::-webkit-details-marker{display:none}
  .qa[open] summary{color:var(--primary)}
  .qa .arrow{flex:0 0 auto;width:18px;height:18px;margin-top:4px;transition:transform .25s;fill:var(--muted)}
  .qa[open] .arrow{transform:rotate(180deg);fill:var(--primary)}
  .qa p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}

  /* ============ CTA ============ */
  .cta{
    position:relative;overflow:hidden;background:var(--dark);color:var(--on-dark);
    padding:82px 0;
  }
  .cta::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-3.png");
    background-size:cover;background-position:center;opacity:.28;
  }
  .cta::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(18,14,31,.94),rgba(27,20,48,.88));
  }
  .cta .container{position:relative;z-index:2}
  .cta-box{
    background:rgba(27,20,48,.86);border:1px solid var(--line-dark);
    border-radius:var(--radius-hero);padding:48px 52px;text-align:center;
  }
  .cta-box h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;line-height:1.35}
  .cta-box p{margin:16px auto 0;max-width:640px;color:var(--on-dark-muted);font-size:16px}
  .cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:30px}
  .cta-hint{margin-top:20px;font-size:13px;color:var(--on-dark-muted)}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--dark);border-top:1px solid var(--line-dark);padding:64px 0 28px;color:var(--on-dark-muted)}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
  .footer-brand .brand{margin-bottom:16px}
  .footer-brand p{font-size:14px;line-height:1.85;color:var(--on-dark-muted);max-width:320px}
  .footer-col h4{font-size:14px;font-weight:700;color:var(--on-dark);margin-bottom:16px}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{
    font-size:14px;color:var(--on-dark-muted);
    display:inline-block;transition:color .2s, transform .2s;
  }
  .footer-col a:hover{color:var(--primary);transform:translateX(2px)}
  .footer-bottom{
    margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--on-dark-muted);
  }
  .to-top{
    position:fixed;right:24px;bottom:24px;z-index:60;
    width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    display:grid;place-items:center;box-shadow:0 10px 26px rgba(255,106,43,.34);
    transition:transform .2s, filter .2s;
  }
  .to-top:hover{transform:translateY(-2px);filter:brightness(1.08)}
  .to-top svg{width:18px;height:18px;fill:#fff}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .container{padding:0 24px}
    .section{padding:64px 0}
    .hero{padding:56px 0 64px}
    .hero-grid{grid-template-columns:1fr;gap:36px}
    .split{grid-template-columns:1fr;gap:32px}
    .split.reverse .split-media{order:0}
    .stat-bar{grid-template-columns:repeat(2,1fr);gap:18px}
    .faq-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-box{padding:40px 32px}
  }
  @media (max-width:900px){
    .nav-search{display:none}
    .nav-actions .btn-primary{display:none}
    .nav-burger{display:grid}
  }
  @media (max-width:640px){
    .container{padding:0 16px}
    .section{padding:48px 0}
    .hero{padding:44px 0 54px}
    .channel-scroll{height:50px}
    .stat-bar{grid-template-columns:1fr;padding:20px}
    .tl-item{padding-left:44px}
    .timeline::before{left:11px}
    .tl-node{left:2px;width:18px;height:18px}
    .tl-card{padding:20px 18px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:8px}
    .cta-box{padding:32px 20px}
    .hero-actions .btn{width:100%}
  }