/* roulang page: index */
:root{
  --primary:#6D28D9;
  --accent:#22D3EE;
  --hot:#F97316;
  --pink:#EC4899;
  --bg:#0E0E14;
  --bg-soft:#17171F;
  --card:#1D1D26;
  --text:#F3F4F6;
  --text-dim:#9CA3AF;
  --border:rgba(255,255,255,.08);
  --radius-lg:1rem;
  --radius-xl:1.5rem;
  --shadow:0 10px 30px rgba(0,0,0,.3);
  --gradient:linear-gradient(135deg,#6D28D9 0%,#22D3EE 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .3s ease}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
ul,ol{list-style:none}
.container{width:min(1200px,92%);margin-inline:auto}
.section{padding:clamp(3rem,7vw,5.5rem) 0;position:relative}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1.5rem;margin-bottom:2rem}
.section-title{font-size:clamp(1.5rem,3vw,2.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.2}
.section-link{font-size:.875rem;color:var(--text-dim);white-space:nowrap;padding-bottom:.4rem;border-bottom:1px solid transparent;transition:all .3s ease}
.section-link:hover{color:var(--accent);border-color:var(--accent)}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== Dock Navigation ===== */
.dock-header{position:fixed;top:1.25rem;left:50%;transform:translateX(-50%);z-index:50;width:min(92%,72rem)}
.dock-nav{
  display:flex;align-items:center;justify-content:space-between;gap:.75rem;
  background:rgba(10,10,16,.72);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.08);border-radius:999px;
  padding:.55rem .7rem .55rem 1.1rem;box-shadow:0 8px 32px rgba(0,0,0,.4);
}
.brand-logo{display:flex;align-items:center;gap:.4rem;font-weight:800;font-size:1.1rem;letter-spacing:-.01em;white-space:nowrap}
.brand-logo .brand-strong{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-logo .brand-tag{font-size:.7rem;font-weight:500;color:var(--text-dim);background:rgba(255,255,255,.06);border:1px solid var(--border);padding:.15rem .5rem;border-radius:999px}
.nav-links{display:none;align-items:center;gap:.15rem}
.nav-link{
  position:relative;padding:.5rem .85rem;border-radius:999px;font-size:.875rem;font-weight:500;
  color:var(--text-dim);transition:all .3s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.active{color:#fff;background:rgba(109,40,217,.35)}
.nav-link.active::after{
  content:'';position:absolute;bottom:.3rem;left:50%;transform:translateX(-50%);
  width:.35rem;height:.35rem;border-radius:50%;background:var(--accent);
}
.gradient-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:var(--gradient);color:#fff;font-weight:700;font-size:.875rem;
  border-radius:999px;padding:.55rem 1.3rem;border:0;white-space:nowrap;
  box-shadow:0 4px 18px rgba(109,40,217,.4);transition:all .3s ease;line-height:1.4;
}
.gradient-btn:hover{filter:brightness(1.15);transform:translateY(-1px);box-shadow:0 6px 24px rgba(109,40,217,.55)}
.gradient-btn:active{transform:scale(.98);filter:brightness(1)}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:2.35rem;height:2.35rem;
  background:rgba(255,255,255,.06);border:1px solid var(--border);border-radius:50%;
  color:var(--text);transition:all .3s ease;padding:0;
}
.menu-btn:hover{background:rgba(255,255,255,.12)}
.mobile-menu-panel{
  position:fixed;top:5rem;left:50%;transform:translateX(-50%) translateY(-12px);
  width:min(92%,20rem);z-index:49;background:rgba(15,15,22,.96);backdrop-filter:blur(24px);
  border:1px solid var(--border);border-radius:1.5rem;padding:1rem;
  box-shadow:0 20px 50px rgba(0,0,0,.5);opacity:0;visibility:hidden;
  transition:all .35s cubic-bezier(.4,0,.2,1);
}
.mobile-menu-panel.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mobile-menu-panel a{display:block;padding:.85rem 1rem;border-radius:1rem;font-weight:500;color:var(--text-dim);font-size:.95rem;transition:all .3s ease}
.mobile-menu-panel a:hover{color:#fff;background:rgba(255,255,255,.06)}
.mobile-menu-panel a.active{color:#fff;background:rgba(109,40,217,.3)}

/* ===== Hero ===== */
.hero{
  min-height:clamp(680px,80vh,900px);display:flex;align-items:center;justify-content:center;text-align:center;
  background:linear-gradient(to bottom,rgba(14,14,20,.55) 0%,rgba(14,14,20,.7) 50%,var(--bg) 100%),
              url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:7rem 1.25rem 4rem;position:relative;overflow:hidden;
}
.hero::before{content:'';position:absolute;top:-20%;right:-10%;width:38rem;height:38rem;background:radial-gradient(circle,rgba(109,40,217,.25),transparent 65%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-15%;left:-8%;width:30rem;height:30rem;background:radial-gradient(circle,rgba(34,211,238,.14),transparent 65%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:55rem;margin:0 auto}
.hero-badge{
  display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:.4rem .95rem;
  font-size:.8rem;color:#d1d5db;margin-bottom:1.6rem;backdrop-filter:blur(8px);
}
.hero-badge .dot{width:.45rem;height:.45rem;border-radius:50%;background:var(--accent);animation:pulse-dot 2s infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:clamp(2.1rem,5vw,3.75rem);font-weight:900;line-height:1.2;letter-spacing:-.03em;margin-bottom:1.2rem}
.hero-sub{font-size:clamp(1rem,1.5vw,1.25rem);color:var(--text-dim);max-width:38rem;margin:0 auto 2.2rem;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-bottom:2.5rem}
.ghost-btn{
  display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.22);color:#fff;font-weight:600;font-size:.9rem;
  border-radius:999px;padding:.6rem 1.4rem;transition:all .3s ease;line-height:1.4;
}
.ghost-btn:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);transform:translateY(-1px)}
.ghost-btn:active{transform:scale(.98)}
.hero-search{
  display:flex;align-items:center;gap:.5rem;max-width:32rem;margin:0 auto;
  background:rgba(0,0,0,.45);border:1px solid rgba(255,255,255,.12);border-radius:999px;
  padding:.35rem .35rem .35rem 1.2rem;backdrop-filter:blur(12px);transition:border-color .3s ease,box-shadow .3s ease;
}
.hero-search:focus-within{border-color:rgba(109,40,217,.7);box-shadow:0 0 0 4px rgba(109,40,217,.2)}
.hero-search input{flex:1;background:transparent;border:0;outline:0;color:var(--text);font-size:.9rem;padding:.55rem 0}
.hero-search input::placeholder{color:var(--text-dim)}
.hero-search button{
  background:var(--gradient);color:#fff;font-weight:700;font-size:.85rem;border:0;
  border-radius:999px;padding:.55rem 1.25rem;white-space:nowrap;transition:all .3s ease;
}
.hero-search button:hover{filter:brightness(1.15)}
.hero-search button:active{transform:scale(.97)}

/* ===== Stats Badges ===== */
.stats-section{margin-top:-3.5rem;position:relative;z-index:10}
.stats-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.stat-badge{
  background:linear-gradient(135deg,rgba(29,29,38,.95),rgba(17,17,24,.95));
  border:1px solid var(--border);border-radius:1.25rem;padding:1.25rem 1.5rem;
  display:flex;flex-direction:column;gap:.25rem;align-items:center;text-align:center;
  box-shadow:0 8px 30px rgba(0,0,0,.35);transition:all .3s ease;
}
.stat-badge:hover{transform:translateY(-3px);border-color:rgba(109,40,217,.4)}
.stat-num{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:900;color:var(--accent);letter-spacing:-.02em}
.stat-num.orange{color:var(--hot)}
.stat-label{font-size:.82rem;color:var(--text-dim)}

/* ===== Cards ===== */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:1.5rem;overflow:hidden;
  transition:all .3s ease;box-shadow:0 8px 24px rgba(0,0,0,.25);
}
.card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(109,40,217,.18);border-color:rgba(109,40,217,.35)}
.card-img-wrap{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-img-wrap img{transform:scale(1.05)}
.card-img-wrap::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(14,14,20,.65),transparent 45%)}
.card-body{padding:1.15rem 1.25rem 1.3rem}
.card-cat{
  display:inline-block;background:rgba(109,40,217,.22);color:#c4b5fd;font-size:.72rem;font-weight:600;
  border-radius:999px;padding:.2rem .65rem;margin-bottom:.6rem;
}
.card-title{font-size:1.02rem;font-weight:700;line-height:1.45;margin-bottom:.4rem;transition:color .3s ease}
.card:hover .card-title{color:#e9d5ff}
.card-desc{font-size:.84rem;color:var(--text-dim);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:.8rem;font-size:.78rem;color:var(--text-dim)}
.heat-tag{background:rgba(249,115,22,.16);color:#fdba74;font-weight:700;font-size:.72rem;padding:.2rem .6rem;border-radius:999px}

/* Horizontal scroll */
.hscroll{display:flex;gap:1.1rem;overflow-x:auto;padding:0.5rem 0.25rem 1.25rem;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:rgba(109,40,217,.6) rgba(255,255,255,.04)}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:999px}
.hscroll::-webkit-scrollbar-thumb{background:linear-gradient(90deg,#6D28D9,#22D3EE);border-radius:999px}
.hscroll .card{flex:0 0 clamp(200px,26vw,270px);scroll-snap-align:start}

/* Grid cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:1.25rem}

/* ===== Playlist Tabs ===== */
.tabs-wrap{display:flex;gap:.5rem;margin-bottom:2rem;flex-wrap:wrap}
.tab-btn{
  background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--text-dim);
  border-radius:999px;padding:.55rem 1.4rem;font-size:.88rem;font-weight:600;transition:all .3s ease;
}
.tab-btn:hover{color:var(--text);background:rgba(255,255,255,.08)}
.tab-btn.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 4px 16px rgba(109,40,217,.4)}
.tab-panel.hidden{display:none !important}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(135deg,rgba(109,40,217,.92) 0%,rgba(34,211,238,.82) 100%),
              url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius:2rem;padding:clamp(2.8rem,6vw,4.5rem) clamp(1.5rem,4vw,3.5rem);
  text-align:center;position:relative;overflow:hidden;box-shadow:0 18px 50px rgba(109,40,217,.35);
}
.cta-section::before{content:'';position:absolute;top:-4rem;right:-2rem;width:16rem;height:16rem;background:rgba(255,255,255,.08);border-radius:50%}
.cta-section::after{content:'';position:absolute;bottom:-5rem;left:-2rem;width:14rem;height:14rem;background:rgba(0,0,0,.12);border-radius:50%}
.cta-content{position:relative;z-index:2;max-width:42rem;margin:0 auto}
.cta-title{font-size:clamp(1.6rem,3.4vw,2.6rem);font-weight:900;color:#fff;line-height:1.3;margin-bottom:.9rem;letter-spacing:-.02em}
.cta-sub{color:rgba(255,255,255,.88);font-size:clamp(.95rem,1.4vw,1.1rem);margin-bottom:2rem;line-height:1.7}
.cta-btn{
  display:inline-flex;align-items:center;gap:.5rem;background:#fff;color:var(--primary);
  font-weight:800;font-size:.95rem;border-radius:999px;padding:.8rem 2rem;line-height:1.5;
  box-shadow:0 8px 24px rgba(0,0,0,.2);transition:all .3s ease;border:0;
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.28)}
.cta-btn:active{transform:scale(.97)}

/* ===== News List (CMS) ===== */
.news-list{display:flex;flex-direction:column;gap:.9rem}
.news-item{
  display:flex;align-items:center;gap:1rem;background:var(--card);
  border:1px solid var(--border);border-radius:1.25rem;padding:1.1rem 1.3rem;
  transition:all .3s ease;box-shadow:0 4px 16px rgba(0,0,0,.2);
}
.news-item:hover{transform:translateY(-2px);border-color:rgba(109,40,217,.4);box-shadow:0 10px 28px rgba(109,40,217,.14)}
.news-cat{flex-shrink:0;background:rgba(109,40,217,.2);color:#c4b5fd;font-size:.72rem;font-weight:700;padding:.3rem .7rem;border-radius:999px;white-space:nowrap}
.news-body{flex:1;min-width:0}
.news-body h3{font-size:.98rem;font-weight:700;line-height:1.4;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-body p{font-size:.82rem;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-time{flex-shrink:0;font-size:.76rem;color:var(--text-dim);white-space:nowrap}
.news-empty{
  background:var(--card);border:1px dashed rgba(255,255,255,.15);border-radius:1.25rem;
  padding:2.5rem;text-align:center;color:var(--text-dim);font-size:.95rem;
}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:.75rem;max-width:48rem;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:1.25rem;overflow:hidden;transition:all .3s ease}
.faq-item:hover{border-color:rgba(109,40,217,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1.2rem 1.4rem;font-weight:600;font-size:.98rem;color:var(--text);transition:background .3s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:''}
.faq-item summary .faq-icon{
  flex-shrink:0;width:1.6rem;height:1.6rem;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(109,40,217,.25);color:#c4b5fd;font-size:1rem;font-weight:700;transition:all .3s ease;
}
.faq-item[open] summary .faq-icon{background:var(--gradient);color:#fff;transform:rotate(180deg)}
.faq-item[open] summary{background:rgba(109,40,217,.07)}
.faq-answer{padding:0 1.4rem 1.3rem;color:var(--text-dim);font-size:.88rem;line-height:1.8}

/* ===== Footer ===== */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:4rem 0 1.5rem;margin-top:2rem}
.footer-grid{display:grid;grid-template-columns:1fr;gap:2.5rem;margin-bottom:3rem}
.footer-brand .brand-logo{margin-bottom:1rem}
.footer-brand p{color:var(--text-dim);font-size:.88rem;line-height:1.8;max-width:22rem}
.footer-head{font-size:.95rem;font-weight:700;margin-bottom:1.1rem;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:.65rem}
.footer-links a{color:var(--text-dim);font-size:.88rem;transition:all .3s ease}
.footer-links a:hover{color:#fff;padding-left:.35rem}
.footer-divider{height:1px;background:var(--gradient);opacity:.35;border:0;margin-bottom:1.5rem}
.footer-copy{color:var(--text-dim);font-size:.8rem;text-align:center;line-height:1.8}
.footer-domain{color:#c4b5fd;font-weight:600}

/* ===== Responsive ===== */
@media (min-width:640px){
  .stats-wrap{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  .nav-links{display:flex}
  .menu-btn{display:none}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .news-item{padding:1.25rem 1.6rem}
}
@media (max-width:520px){
  .hero{padding-top:6rem}
  .hero-actions{gap:.7rem;flex-direction:column;align-items:center}
  .hero-actions .gradient-btn,.hero-actions .ghost-btn{width:100%;max-width:16rem;justify-content:center}
  .stat-badge{padding:1rem .8rem;border-radius:1rem}
  .news-item{flex-wrap:wrap;gap:.6rem}
  .news-time{width:100%;text-align:left;padding-left:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:.4rem}
  .cta-title{font-size:1.4rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: category1 */
:root {
      --primary: #6D28D9;
      --secondary: #22D3EE;
      --accent: #F97316;
      --pink: #EC4899;
      --bg: #0E0E14;
      --bg-card: #1D1D26;
      --text: #F3F4F6;
      --text-muted: #9CA3AF;
      --border: rgba(255, 255, 255, 0.08);
      --radius-lg: 1.5rem;
      --radius-md: 1rem;
      --gradient: linear-gradient(135deg, #6D28D9 0%, #22D3EE 100%);
      --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.45);
      --shadow-glow: 0 12px 30px rgba(109, 40, 217, 0.35);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button {
      font-family: inherit;
    }

    .container {
      width: min(1200px, 92%);
      margin: 0 auto;
    }

    /* ===== Dock Nav ===== */
    .dock-header {
      position: fixed;
      top: 1rem;
      left: 50%;
      transform: translateX(-50%);
      z-index: 100;
      width: min(92%, 64rem);
    }
    .dock-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      background: rgba(0, 0, 0, 0.65);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      padding: 0.625rem 1rem 0.625rem 1.25rem;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .brand-logo {
      display: flex;
      align-items: baseline;
      gap: 0.4rem;
      font-weight: 800;
      line-height: 1;
      white-space: nowrap;
    }
    .brand-strong {
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      font-size: 1.1rem;
      letter-spacing: 0.01em;
    }
    .brand-tag {
      color: var(--text-muted);
      font-size: 0.82rem;
      font-weight: 400;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0.25rem;
    }
    .nav-link {
      padding: 0.5rem 1rem;
      border-radius: 999px;
      color: var(--text-muted);
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.3s ease;
      line-height: 1.4;
    }
    .nav-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(109, 40, 217, 0.65), rgba(34, 211, 238, 0.35));
      font-weight: 600;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    .gradient-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
      padding: 0.5rem 1.25rem;
      border-radius: 999px;
      background: var(--gradient);
      color: #fff;
      font-weight: 700;
      font-size: 0.875rem;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-glow);
      white-space: nowrap;
      line-height: 1.4;
    }
    .gradient-btn:hover {
      filter: brightness(1.1);
      transform: translateY(-1px);
      box-shadow: 0 14px 35px rgba(109, 40, 217, 0.45);
    }
    .gradient-btn:active {
      transform: scale(0.98);
    }
    .menu-btn {
      display: none;
      background: none;
      border: none;
      color: var(--text);
      padding: 0.4rem;
      border-radius: 999px;
      align-items: center;
      justify-content: center;
      transition: background 0.3s;
    }
    .menu-btn:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    #desktopCta {
      display: none;
    }

    /* mobile menu */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(14, 14, 20, 0.98);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      z-index: 99;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 0.5rem;
      padding: 2rem;
    }
    .mobile-menu.open {
      display: flex;
    }
    .mobile-menu .nav-link {
      font-size: 1.25rem;
      padding: 0.9rem 2rem;
      color: var(--text);
      transition: 0.3s;
    }
    .mobile-menu .nav-link.active {
      background: var(--gradient);
      color: #fff;
      font-weight: 700;
    }
    .mobile-menu .mobile-cta {
      margin-top: 1.5rem;
      width: 100%;
      max-width: 320px;
    }
    .mobile-menu .close-btn {
      position: absolute;
      top: 1.5rem;
      right: 1.5rem;
      background: none;
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--text);
      width: 44px;
      height: 44px;
      border-radius: 999px;
      font-size: 1.4rem;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s;
    }
    .mobile-menu .close-btn:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: rotate(90deg);
    }

    /* ===== Category Hero ===== */
    .category-hero {
      position: relative;
      min-height: 62vh;
      display: flex;
      align-items: center;
      padding: 7rem 0 4rem;
      background:
        linear-gradient(100deg, rgba(14, 14, 20, 0.95) 0%, rgba(14, 14, 20, 0.75) 48%, rgba(14, 14, 20, 0.4) 100%),
        url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
      border-bottom: 1px solid var(--border);
    }
    .category-hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 120px;
      background: linear-gradient(to bottom, transparent, var(--bg));
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(109, 40, 217, 0.25);
      border: 1px solid rgba(34, 211, 238, 0.3);
      color: #a5b4fc;
      font-size: 0.8rem;
      font-weight: 600;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      margin-bottom: 1.25rem;
      backdrop-filter: blur(8px);
    }
    .hero-title {
      font-size: clamp(2rem, 4vw, 3.2rem);
      font-weight: 900;
      line-height: 1.15;
      color: var(--text);
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }
    .hero-title .highlight {
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: rgba(243, 244, 246, 0.75);
      max-width: 540px;
      margin-bottom: 2rem;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      align-items: center;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
      padding: 0.75rem 1.75rem;
      border-radius: 999px;
      background: var(--gradient);
      color: #fff;
      font-weight: 700;
      font-size: 0.9rem;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-glow);
      border: none;
      cursor: pointer;
      line-height: 1.4;
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      transform: translateY(-2px);
      box-shadow: 0 16px 40px rgba(109, 40, 217, 0.45);
    }
    .btn-primary:active {
      transform: scale(0.97);
    }
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
      padding: 0.75rem 1.75rem;
      border-radius: 999px;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
      transition: all 0.3s ease;
      cursor: pointer;
      line-height: 1.4;
    }
    .btn-ghost:hover {
      border-color: rgba(255, 255, 255, 0.5);
      background: rgba(255, 255, 255, 0.05);
    }
    .btn-ghost:active {
      transform: scale(0.97);
    }

    .hero-card-wrap {
      position: relative;
      z-index: 2;
    }
    .hero-card {
      border-radius: 1.5rem;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      position: relative;
      background: var(--bg-card);
    }
    .hero-card img {
      width: 100%;
      aspect-ratio: 4/3;
      object-fit: cover;
      opacity: 0.85;
    }
    .hero-card::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.4), transparent 40%);
      pointer-events: none;
    }
    .hero-card .play-tag {
      position: absolute;
      bottom: 1rem;
      left: 1rem;
      z-index: 2;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.3rem 0.8rem;
      border-radius: 999px;
    }

    /* ===== Section common ===== */
    .section {
      padding: 4.5rem 0;
    }
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 1rem;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
    }
    .section-title {
      font-size: clamp(1.5rem, 2.5vw, 2rem);
      font-weight: 800;
      color: var(--text);
      line-height: 1.25;
      position: relative;
      padding-left: 1rem;
    }
    .section-title::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0.15rem;
      bottom: 0.15rem;
      width: 4px;
      border-radius: 999px;
      background: var(--gradient);
    }
    .section-sub {
      color: var(--text-muted);
      font-size: 0.95rem;
      max-width: 600px;
    }
    .section-title-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      margin-bottom: 2rem;
      flex-wrap: wrap;
    }

    /* ===== Topic Cards ===== */
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .topic-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .topic-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 24px 48px rgba(109, 40, 217, 0.2);
      border-color: rgba(109, 40, 217, 0.4);
    }
    .topic-card .card-img {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16/10;
    }
    .topic-card .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .topic-card:hover .card-img img {
      transform: scale(1.05);
    }
    .card-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.45) 100%);
      pointer-events: none;
    }
    .card-tag {
      position: absolute;
      top: 0.9rem;
      left: 0.9rem;
      z-index: 2;
      background: rgba(109, 40, 217, 0.7);
      backdrop-filter: blur(8px);
      color: #d8b4fe;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 0.25rem 0.7rem;
      border-radius: 999px;
      border: 1px solid rgba(167, 139, 250, 0.3);
      letter-spacing: 0.02em;
    }
    .card-hot {
      position: absolute;
      top: 0.9rem;
      right: 0.9rem;
      z-index: 2;
      background: rgba(249, 115, 22, 0.75);
      backdrop-filter: blur(8px);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 0.25rem 0.7rem;
      border-radius: 999px;
    }
    .card-body {
      padding: 1.25rem 1.25rem 1.5rem;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.45rem;
      line-height: 1.4;
      transition: color 0.3s;
    }
    .topic-card:hover .card-title {
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .card-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-meta {
      margin-top: 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .card-link {
      color: var(--secondary);
      font-weight: 600;
      font-size: 0.82rem;
      transition: all 0.3s;
      display: inline-flex;
      align-items: center;
      gap: 0.2rem;
    }
    .card-link:hover {
      color: #fff;
      gap: 0.5rem;
    }

    /* ===== intro stats ===== */
    .intro-bar {
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      background: rgba(29, 29, 38, 0.5);
      backdrop-filter: blur(12px);
    }
    .intro-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1.75rem 0;
      flex-wrap: wrap;
    }
    .intro-text {
      flex: 1;
      min-width: 260px;
      color: rgba(243, 244, 246, 0.7);
      font-size: 0.95rem;
    }
    .stat-list {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
    }
    .stat-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 0.5rem 1rem;
      border-radius: 1rem;
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid var(--border);
      min-width: 84px;
    }
    .stat-num {
      font-size: 1.4rem;
      font-weight: 800;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.72rem;
      color: var(--text-muted);
      margin-top: 0.15rem;
    }

    /* ===== Features ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .feature-item {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 2rem 1.75rem;
      transition: all 0.35s ease;
      position: relative;
      overflow: hidden;
    }
    .feature-item::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--gradient);
      transform: scaleX(0);
      transition: transform 0.4s ease;
      transform-origin: left;
    }
    .feature-item:hover::before {
      transform: scaleX(1);
    }
    .feature-item:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
      border-color: rgba(109, 40, 217, 0.3);
    }
    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 1rem;
      background: rgba(109, 40, 217, 0.15);
      border: 1px solid rgba(34, 211, 238, 0.2);
      color: var(--secondary);
    }
    .feature-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: var(--text);
    }
    .feature-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* ===== CTA block ===== */
    .cta-block {
      position: relative;
      border-radius: 2rem;
      background: linear-gradient(135deg, rgba(109, 40, 217, 0.9) 0%, rgba(34, 211, 238, 0.7) 100%);
      padding: 3.5rem 3rem;
      text-align: center;
      overflow: hidden;
    }
    .cta-block::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -30%;
      width: 60%;
      height: 200%;
      background: rgba(255, 255, 255, 0.08);
      transform: rotate(15deg);
      pointer-events: none;
    }
    .cta-block h2 {
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      font-weight: 800;
      color: #fff;
      margin-bottom: 0.75rem;
      position: relative;
      z-index: 1;
    }
    .cta-block p {
      color: rgba(255, 255, 255, 0.85);
      max-width: 560px;
      margin: 0 auto 1.75rem;
      position: relative;
      z-index: 1;
      font-size: 1rem;
      line-height: 1.7;
    }
    .cta-block .btn-primary {
      background: #fff;
      color: #6b21a8;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
      position: relative;
      z-index: 1;
    }
    .cta-block .btn-primary:hover {
      background: #f0f0f0;
      transform: translateY(-2px);
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 0.75rem;
      transition: all 0.3s ease;
      overflow: hidden;
    }
    .faq-item:hover {
      border-color: rgba(109, 40, 217, 0.35);
    }
    .faq-item[open] {
      border-color: rgba(34, 211, 238, 0.3);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    .faq-item summary {
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      padding: 1.15rem 1.35rem;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text);
      transition: background 0.3s;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary:hover {
      background: rgba(255, 255, 255, 0.03);
    }
    .faq-item summary h3 {
      font-size: 0.95rem;
      font-weight: 600;
      margin: 0;
      color: var(--text);
    }
    .faq-icon {
      width: 24px;
      height: 24px;
      flex-shrink: 0;
      border-radius: 999px;
      background: rgba(109, 40, 217, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary);
      font-size: 1.1rem;
      line-height: 1;
      transition: transform 0.3s ease;
    }
    .faq-item[open] .faq-icon {
      transform: rotate(45deg);
    }
    .faq-item .faq-body {
      padding: 0 1.35rem 1.25rem;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.7;
      border-top: 1px solid var(--border);
      padding-top: 1rem;
      margin-top: 0;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #0a0a0f;
      border-top: 1px solid var(--border);
      padding: 3.5rem 0 2rem;
      margin-top: 3rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 2.5rem;
      margin-bottom: 2.5rem;
    }
    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      max-width: 360px;
      margin-top: 1rem;
      line-height: 1.6;
    }
    .footer-head {
      font-size: 0.9rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.85rem;
      transition: all 0.3s;
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 0.25rem;
    }
    .footer-divider {
      border: none;
      border-top: 1px solid var(--border);
      background: none;
      margin: 0 0 1.5rem;
    }
    .footer-copy {
      font-size: 0.78rem;
      color: rgba(156, 163, 175, 0.6);
      line-height: 1.6;
      text-align: center;
    }
    .footer-domain {
      color: rgba(156, 163, 175, 0.4);
    }

    /* ===== Responsive ===== */
    @media (min-width: 769px) {
      #desktopCta {
        display: inline-flex;
      }
    }
    @media (max-width: 1024px) {
      .topic-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .dock-nav {
        padding: 0.5rem 0.75rem 0.5rem 1rem;
      }
      .nav-links {
        display: none;
      }
      .menu-btn {
        display: inline-flex;
      }
      .category-hero {
        min-height: auto;
        padding: 6rem 0 3rem;
      }
      .section {
        padding: 3rem 0;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
      }
      .intro-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .stat-list {
        width: 100%;
        justify-content: flex-start;
        gap: 0.75rem;
      }
      .stat-item {
        flex: 1;
        min-width: 72px;
        padding: 0.6rem 0.5rem;
      }
      .feature-grid {
        grid-template-columns: 1fr;
      }
      .cta-block {
        padding: 2.25rem 1.5rem;
      }
    }
    @media (max-width: 520px) {
      .topic-grid {
        grid-template-columns: 1fr;
      }
      .hero-actions .btn-primary,
      .hero-actions .btn-ghost {
        width: 100%;
      }
      .brand-tag {
        display: none;
      }
    }

/* roulang page: article */
:root {
    --primary: #6D28D9;
    --secondary: #22D3EE;
    --orange: #F97316;
    --pink: #EC4899;
    --bg: #0E0E14;
    --bg-soft: #17171F;
    --card: #1D1D26;
    --text: #F3F4F6;
    --muted: #9CA3AF;
    --border: rgba(255, 255, 255, 0.08);
    --gradient: linear-gradient(135deg, #6D28D9 0%, #22D3EE 100%);
    --radius: 1.25rem;
    --radius-sm: 0.75rem;
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }
section[id] { scroll-margin-top: 90px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }

/* Dock 导航 */
.dock-header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: 100%;
    max-width: 980px;
    padding: 0 1rem;
}
.dock-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    padding: 0.5rem 0.75rem;
    box-shadow: var(--shadow);
}
.brand-logo { display: flex; align-items: center; gap: 0.5rem; min-width: 0; }
.brand-strong {
    font-weight: 900;
    font-size: 1.1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    white-space: nowrap;
}
.brand-tag {
    font-size: 0.7rem;
    color: var(--muted);
    background: rgba(255, 255, 255, 0.08);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 0.2rem; }
.nav-link {
    padding: 0.5rem 0.9rem;
    font-size: 0.88rem;
    color: #D1D5DB;
    border-radius: 999px;
    transition: all 0.3s ease-out;
    white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav-link.active { color: #fff; background: rgba(109, 40, 217, 0.55); }
.gradient-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
    background: var(--gradient);
    color: #fff;
    font-weight: 700;
    font-size: 0.88rem;
    transition: all 0.3s ease-out;
    box-shadow: 0 4px 20px rgba(109, 40, 217, 0.35);
    white-space: nowrap;
}
.gradient-btn:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 6px 25px rgba(109, 40, 217, 0.45); }
.gradient-btn:active { transform: scale(0.98); }
.outline-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #E5E7EB;
    font-weight: 600;
    font-size: 0.88rem;
    transition: all 0.3s ease-out;
    background: transparent;
}
.outline-btn:hover { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.4); }
.menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: #D1D5DB;
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.3s ease-out;
}
.menu-btn:hover { background: rgba(255, 255, 255, 0.12); }
.mobile-menu-panel {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(14, 14, 20, 0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 99;
    padding: 6rem 2rem 2rem;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-out;
}
.mobile-menu-panel.open { opacity: 1; pointer-events: auto; }
.mobile-link {
    display: block;
    padding: 0.9rem 1.2rem;
    color: #D1D5DB;
    font-size: 1.05rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.3s ease-out;
    border-radius: 0.75rem;
}
.mobile-link:hover { color: #fff; background: rgba(255, 255, 255, 0.04); }
.mobile-link.active { color: #fff; border-left-color: var(--secondary); background: rgba(109, 40, 217, 0.2); }
.mobile-panel-cta { margin: 1.2rem 1.2rem; }

/* 文章 Hero */
.article-hero {
    background:
        linear-gradient(to bottom, rgba(14, 14, 20, 0.78) 0%, rgba(14, 14, 20, 0.55) 60%, var(--bg) 100%),
        url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    padding: 8rem 0 3rem;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.breadcrumb a { color: #D1D5DB; transition: color 0.3s; }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--secondary); }
.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: rgba(109, 40, 217, 0.2);
    color: #C4B5FD;
    border: 1px solid rgba(109, 40, 217, 0.3);
    padding: 0.25rem 0.9rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.article-head h1 {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.35;
    margin: 0.75rem 0 1rem;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    flex-wrap: wrap;
    font-size: 0.82rem;
    color: var(--muted);
}
.meta-item { display: inline-flex; align-items: center; gap: 0.4rem; }
.meta-item svg { flex-shrink: 0; }

/* 正文区 */
.article-main { padding: 3rem 0 2rem; }
.article-content { max-width: 780px; margin: 0 auto; }
.article-content h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin: 2rem 0 1rem;
    padding-left: 0.9rem;
    border-left: 3px solid var(--secondary);
}
.article-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 1.6rem 0 0.8rem;
    color: #E5E7EB;
}
.article-content p {
    margin-bottom: 1.1rem;
    font-size: 1rem;
    line-height: 1.85;
    color: #D1D5DB;
}
.article-content img {
    border-radius: 1rem;
    margin: 1.5rem 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}
.article-content blockquote {
    border-left: 3px solid var(--primary);
    background: rgba(109, 40, 217, 0.08);
    padding: 1rem 1.3rem;
    margin: 1.5rem 0;
    border-radius: 0 0.75rem 0.75rem 0;
    color: #C4B5FD;
}
.article-content ul,
.article-content ol {
    margin: 0 0 1.2rem 1.3rem;
    color: #D1D5DB;
}
.article-content li { margin-bottom: 0.4rem; }
.article-content a {
    color: var(--secondary);
    border-bottom: 1px solid rgba(34, 211, 238, 0.3);
}
.article-content a:hover { color: #fff; border-bottom-color: rgba(255, 255, 255, 0.4); }
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}
.article-content th,
.article-content td {
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.6rem 0.8rem;
}
.article-content th { background: rgba(255, 255, 255, 0.04); font-weight: 700; }
.article-empty {
    text-align: center;
    padding: 4rem 1rem;
    max-width: 600px;
    margin: 0 auto;
}
.article-empty h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 0.5rem; }
.article-empty p { color: var(--muted); margin-bottom: 1.5rem; }
.article-back-btn { text-align: center; padding: 1rem 0 3rem; }

/* 延伸阅读 */
.related-section {
    padding: 3.5rem 0 4rem;
    background: var(--bg-soft);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.75rem;
}
.section-head h2 { font-size: 1.5rem; font-weight: 800; }
.view-all {
    font-size: 0.85rem;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.3s;
}
.view-all:hover { color: var(--secondary); }
.related-card {
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.04);
}
.related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(109, 40, 217, 0.18);
}
.related-card .card-img {
    overflow: hidden;
    aspect-ratio: 16 / 10;
}
.related-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease-out;
}
.related-card:hover .card-img img { transform: scale(1.06); }
.related-card .card-body { padding: 1rem; }
.related-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.5;
    transition: color 0.3s;
}
.related-card:hover h3 { color: var(--secondary); }
.related-card .card-tag {
    display: inline-block;
    background: rgba(34, 211, 238, 0.12);
    color: #67E8F9;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    margin-bottom: 0.6rem;
    letter-spacing: 0.02em;
}

/* CTA */
.cta-section {
    padding: 4.5rem 0;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
}
.cta-inner { position: relative; text-align: center; max-width: 620px; margin: 0 auto; padding: 0 1.25rem; }
.cta-inner h2 { font-size: 1.9rem; font-weight: 900; color: #fff; margin-bottom: 0.75rem; line-height: 1.3; }
.cta-inner p { color: rgba(255, 255, 255, 0.85); margin-bottom: 1.8rem; }
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: #fff;
    color: var(--primary);
    font-weight: 800;
    padding: 0.75rem 2rem;
    border-radius: 999px;
    transition: all 0.3s ease-out;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(0, 0, 0, 0.25); }
.cta-btn:active { transform: scale(0.98); }

/* 页脚 */
.site-footer { background: #0A0A0F; border-top: 1px solid rgba(255, 255, 255, 0.05); padding: 3.5rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; }
.footer-brand p { margin-top: 1rem; font-size: 0.88rem; color: var(--muted); max-width: 380px; }
.footer-head { font-size: 0.9rem; font-weight: 700; color: #E5E7EB; margin-bottom: 1rem; letter-spacing: 0.04em; }
.footer-links { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-links a { color: var(--muted); font-size: 0.88rem; transition: all 0.3s; }
.footer-links a:hover { color: #fff; transform: translateX(3px); }
.footer-divider { border: none; border-top: 1px solid rgba(255, 255, 255, 0.06); margin: 2.5rem 0 1.5rem; }
.footer-copy { font-size: 0.8rem; color: #6B7280; text-align: center; line-height: 1.8; }
.footer-domain { color: #9CA3AF; }

@media (max-width: 1024px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-btn { display: flex; }
    .article-hero { padding-top: 6.5rem; }
    .article-head h1 { font-size: 1.5rem; }
    .article-meta { gap: 0.75rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 520px) {
    .related-grid { grid-template-columns: 1fr; }
    .cta-inner h2 { font-size: 1.5rem; }
    .brand-tag { display: none; }
}

/* roulang page: category3 */
:root{
  --brand:#6D28D9;
  --cyan:#22D3EE;
  --hot:#F97316;
  --pink:#EC4899;
  --bg:#0E0E14;
  --card:#1D1D26;
  --text:#F3F4F6;
  --muted:#9CA3AF;
  --border:rgba(255,255,255,.08);
  --grad:linear-gradient(135deg,#6D28D9 0%,#22D3EE 100%);
  --radius:1.25rem;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .3s ease-out}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}

.container{max-width:1200px;margin:0 auto;padding:0 1.25rem}

/* ===== 浮动 Dock 导航 ===== */
.dock-header{
  position:fixed;top:1rem;left:50%;transform:translateX(-50%);z-index:60;
  width:calc(100% - 1.5rem);max-width:880px;
}
.dock-nav{
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(10,10,18,.72);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.08);
  border-radius:999px;
  padding:.55rem .6rem .55rem 1.25rem;
  box-shadow:0 12px 40px rgba(0,0,0,.5);
}
.brand-logo{
  display:inline-flex;align-items:baseline;gap:.35rem;white-space:nowrap;
}
.brand-strong{
  font-weight:800;font-size:1.15rem;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-tag{
  font-size:.75rem;color:var(--muted);font-weight:400;
}
.nav-links{
  display:flex;align-items:center;gap:.15rem;
}
.nav-link{
  padding:.5rem .8rem;border-radius:999px;
  font-size:.86rem;font-weight:500;color:#cbd5e1;
  transition:background .3s ease,color .3s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{
  background:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 4px 18px rgba(109,40,217,.35);
}
.gradient-btn{
  display:inline-flex;align-items:center;gap:.4rem;
  background:var(--grad);color:#fff;font-weight:600;
  padding:.55rem 1.2rem;border-radius:999px;font-size:.86rem;
  box-shadow:0 6px 20px rgba(109,40,217,.4);
  transition:transform .3s ease,box-shadow .3s ease,filter .3s ease;
  white-space:nowrap;
}
.gradient-btn:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 8px 26px rgba(34,211,238,.35)}
.gradient-btn:active{transform:scale(.97)}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  align-items:center;justify-content:center;transition:background .3s;
}
.menu-btn:hover{background:rgba(255,255,255,.12)}
.mobile-panel{
  display:none;position:fixed;top:80px;left:1rem;right:1rem;z-index:59;
  background:rgba(12,12,20,.96);backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.08);border-radius:1.5rem;
  padding:1rem;box-shadow:0 20px 60px rgba(0,0,0,.6);
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;padding:.85rem 1rem;border-radius:1rem;
  font-size:1rem;color:#e2e8f0;font-weight:500;
  transition:background .3s;
}
.mobile-panel a:hover{background:rgba(255,255,255,.07)}
.mobile-panel a.current{background:var(--grad);color:#fff}

/* ===== 分类 Hero ===== */
.cat-hero{
  position:relative;min-height:62vh;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:7rem 1.25rem 3rem;
  background:linear-gradient(180deg,rgba(14,14,20,.82) 0%,rgba(14,14,20,.55) 60%,var(--bg) 100%),
  url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 30% 20%,rgba(109,40,217,.35),transparent 60%),
  radial-gradient(ellipse at 75% 75%,rgba(34,211,238,.22),transparent 55%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto}
.cat-hero .hero-badge{
  display:inline-flex;align-items:center;gap:.4rem;
  background:rgba(109,40,217,.25);border:1px solid rgba(109,40,217,.4);
  color:#c4b5fd;font-size:.8rem;font-weight:600;
  padding:.35rem .9rem;border-radius:999px;margin-bottom:1.25rem;
  backdrop-filter:blur(6px);
}
.cat-hero h1{
  font-size:2.4rem;line-height:1.22;font-weight:800;letter-spacing:-.02em;
  margin-bottom:1.1rem;
}
.cat-hero h1 .grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero p.lead{
  font-size:1.05rem;color:#cbd5e1;line-height:1.8;max-width:640px;margin:0 auto 1.6rem;
}
.hero-ctas{display:flex;gap:.85rem;justify-content:center;flex-wrap:wrap}
.ghost-btn{
  display:inline-flex;align-items:center;gap:.45rem;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.25);
  color:#fff;font-weight:600;padding:.6rem 1.4rem;border-radius:999px;
  font-size:.92rem;transition:all .3s ease;
}
.ghost-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4)}

/* ===== 简介条 ===== */
.intro-strip{
  background:rgba(29,29,38,.6);border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
  backdrop-filter:blur(10px);
  padding:2rem 0;
}
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;text-align:center}
.intro-item .num{
  font-size:1.8rem;font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;line-height:1.2;
}
.intro-item .label{font-size:.85rem;color:var(--muted);margin-top:.3rem}

/* ===== 大卡 + 侧栏 ===== */
.feed-section{padding:4rem 0 2rem}
.feed-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:2rem;
}
.section-title{
  font-size:1.6rem;font-weight:800;margin-bottom:.4rem;letter-spacing:-.01em;
}
.section-sub{color:var(--muted);font-size:.92rem;margin-bottom:1.6rem}
.feature-card{
  background:var(--card);border-radius:1.5rem;overflow:hidden;
  border:1px solid rgba(255,255,255,.05);
  display:flex;flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
  margin-bottom:1.5rem;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(109,40,217,.16)}
.feature-card .fc-cover{position:relative;height:230px;overflow:hidden}
.feature-card .fc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.feature-card:hover .fc-cover img{transform:scale(1.05)}
.feature-card .fc-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(14,14,20,.85) 100%);
}
.badge-tag{
  position:absolute;top:1rem;left:1rem;z-index:2;
  background:rgba(109,40,217,.85);color:#fff;font-size:.75rem;font-weight:600;
  padding:.25rem .7rem;border-radius:999px;backdrop-filter:blur(4px);
}
.badge-hot{
  position:absolute;top:1rem;right:1rem;z-index:2;
  background:rgba(249,115,22,.9);color:#fff;font-size:.72rem;font-weight:700;
  padding:.25rem .6rem;border-radius:999px;
}
.fc-body{padding:1.4rem 1.5rem 1.6rem}
.fc-body h3{
  font-size:1.15rem;font-weight:700;margin-bottom:.5rem;line-height:1.45;
}
.fc-body h3 a{transition:color .3s}
.fc-body h3 a:hover{color:#a78bfa}
.fc-body p{font-size:.9rem;color:var(--muted);line-height:1.7;margin-bottom:1rem}
.fc-meta{
  display:flex;align-items:center;gap:.9rem;font-size:.8rem;color:#6b7280;
  border-top:1px solid rgba(255,255,255,.05);padding-top:.85rem;
}
.fc-meta i{margin-right:.2rem}

/* 侧栏 */
.side-card{
  background:var(--card);border-radius:1.25rem;border:1px solid rgba(255,255,255,.05);
  padding:1.4rem;margin-bottom:1.5rem;
}
.side-card h3{
  font-size:1rem;font-weight:700;margin-bottom:1rem;
  display:flex;align-items:center;gap:.5rem;
}
.side-card h3 i{color:#22D3EE}
.timeline{list-style:none}
.timeline li{
  position:relative;padding:0 0 1rem 1.2rem;border-left:2px solid rgba(109,40,217,.3);
  margin-left:.35rem;
}
.timeline li::before{
  content:'';position:absolute;left:-5px;top:.4rem;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.6);
}
.timeline li:last-child{padding-bottom:0}
.timeline .tl-date{font-size:.72rem;color:#6b7280;display:block;margin-bottom:.15rem}
.timeline .tl-title{font-size:.88rem;font-weight:600;color:#e2e8f0;line-height:1.4}
.timeline .tl-title:hover{color:#a78bfa}
.tag-cloud{display:flex;flex-wrap:wrap;gap:.5rem}
.tag-cloud a{
  font-size:.78rem;background:rgba(109,40,217,.15);color:#c4b5fd;
  padding:.3rem .75rem;border-radius:999px;transition:all .3s;
}
.tag-cloud a:hover{background:rgba(109,40,217,.35);color:#fff}
.subscribe-box{
  background:linear-gradient(135deg,rgba(109,40,217,.25),rgba(34,211,238,.15));
  border:1px solid rgba(109,40,217,.3);border-radius:1.25rem;padding:1.4rem;
}
.subscribe-box p{font-size:.82rem;color:#cbd5e1;margin-bottom:.9rem;line-height:1.6}
.subscribe-input{
  width:100%;background:rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.1);
  border-radius:999px;padding:.55rem 1rem;color:#fff;font-size:.85rem;
  outline:none;transition:border-color .3s,box-shadow .3s;margin-bottom:.7rem;
}
.subscribe-input:focus{border-color:rgba(109,40,217,.6);box-shadow:0 0 0 3px rgba(109,40,217,.25)}
.subscribe-box .gradient-btn{width:100%;justify-content:center}

/* ===== 双列小卡片 ===== */
.mini-cards{padding:3rem 0}
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.mini-card{
  background:var(--card);border-radius:1.1rem;border:1px solid rgba(255,255,255,.05);
  padding:1.3rem;display:flex;gap:1rem;align-items:center;
  transition:transform .3s ease,border-color .3s ease;
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(109,40,217,.4)}
.mini-card .mc-icon{
  width:48px;height:48px;border-radius:14px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(109,40,217,.3),rgba(34,211,238,.25));
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#fff;
}
.mini-card h4{font-size:.95rem;font-weight:700;margin-bottom:.15rem}
.mini-card p{font-size:.8rem;color:var(--muted);line-height:1.5}

/* ===== CTA 区块 ===== */
.section-cta{
  background:var(--grad);border-radius:2rem;overflow:hidden;
  padding:3.5rem 2.5rem;text-align:center;position:relative;
  margin:4rem 0;
}
.section-cta::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.15),transparent 55%),
  radial-gradient(circle at 80% 80%,rgba(0,0,0,.2),transparent 45%);
}
.section-cta h2{font-size:2rem;font-weight:800;color:#fff;margin-bottom:.6rem;position:relative;z-index:2}
.section-cta p{color:rgba(255,255,255,.9);margin-bottom:1.6rem;max-width:560px;margin-left:auto;margin-right:auto;position:relative;z-index:2}
.white-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  background:#fff;color:#1e1b4b;font-weight:700;padding:.7rem 1.6rem;
  border-radius:999px;font-size:.95rem;box-shadow:0 8px 30px rgba(0,0,0,.2);
  transition:transform .3s ease,box-shadow .3s ease;position:relative;z-index:2;
}
.white-btn:hover{transform:translateY(-2px);box-shadow:0 12px 35px rgba(0,0,0,.3)}

/* ===== FAQ ===== */
.faq-section{padding:2rem 0 4rem}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid rgba(255,255,255,.06);
  border-radius:1rem;margin-bottom:.8rem;overflow:hidden;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1.1rem 1.3rem;cursor:pointer;list-style:none;font-weight:600;font-size:.96rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:rgba(109,40,217,.2);display:flex;align-items:center;justify-content:center;
  color:#c4b5fd;font-size:.8rem;font-weight:700;transition:transform .3s ease;
}
.faq-item[open] summary .icon{transform:rotate(45deg)}
.faq-item .faq-body{
  padding:0 1.3rem 1.2rem;color:var(--muted);font-size:.88rem;line-height:1.75;
}

/* ===== 页脚 ===== */
.site-footer{
  background:#0a0a10;border-top:1px solid rgba(255,255,255,.06);
  padding:3rem 0 1.5rem;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:2.5rem;margin-bottom:2rem;
}
.footer-brand p{font-size:.88rem;color:var(--muted);margin-top:.8rem;line-height:1.7;max-width:320px}
.footer-head{font-size:.95rem;font-weight:700;margin-bottom:1rem;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:.5rem}
.footer-links a{font-size:.87rem;color:var(--muted);transition:color .3s}
.footer-links a:hover{color:#fff}
.footer-divider{border:none;border-top:1px solid rgba(255,255,255,.06);margin:1.5rem 0}
.footer-copy{font-size:.8rem;color:#6b7280;text-align:center;line-height:1.7}
.footer-domain{color:#4b5563}

/* ===== 响应式 ===== */
@media(max-width:968px){
  .feed-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media(max-width:768px){
  .nav-links{display:none}
  .menu-btn{display:flex}
  .dock-nav #desktopCta{display:none!important}
  .cat-hero{min-height:70vh;padding-top:6rem}
  .cat-hero h1{font-size:1.8rem}
  .intro-grid{gap:1rem}
  .intro-item .num{font-size:1.4rem}
  .feature-card .fc-cover{height:190px}
  .mini-grid{grid-template-columns:1fr}
  .section-cta{padding:2.5rem 1.5rem;border-radius:1.5rem}
  .section-cta h2{font-size:1.5rem}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:1.5rem}
  .dock-nav{padding:.5rem .5rem .5rem 1rem}
  .brand-tag{display:none}
  .cat-hero{padding:5.5rem 1rem 2.5rem}
  .hero-ctas .gradient-btn,.hero-ctas .ghost-btn{width:100%;justify-content:center}
  .intro-grid{grid-template-columns:1fr 1fr}
  .intro-item:nth-child(3){grid-column:span 2}
}

/* roulang page: category2 */
:root {
  --primary: #6D28D9;
  --accent: #22D3EE;
  --hot: #F97316;
  --pink: #EC4899;
  --bg: #0E0E14;
  --bg-soft: #17171F;
  --card: #1D1D26;
  --text: #F3F4F6;
  --muted: #9CA3AF;
  --border: rgba(255,255,255,0.08);
  --radius: 1rem;
  --radius-full: 9999px;
  --grad: linear-gradient(135deg, #6D28D9 0%, #22D3EE 100%);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }

/* ===== 浮动 Dock 导航 ===== */
.dock-header { position: fixed; top: 1rem; left: 50%; transform: translateX(-50%); z-index: 50; width: calc(100% - 2rem); max-width: 62rem; }
.dock-nav { display: flex; align-items: center; justify-content: space-between; background: rgba(8,8,14,0.78); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-full); padding: 0.55rem 1.1rem; box-shadow: 0 14px 44px rgba(0,0,0,0.55); }
.brand-logo { display: flex; align-items: baseline; gap: 0.35rem; }
.brand-strong { font-size: 1.08rem; font-weight: 900; background: linear-gradient(135deg, #c4b5fd 0%, #22d3ee 100%); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: 0.02em; white-space: nowrap; }
.brand-tag { font-size: 0.72rem; font-weight: 600; color: var(--muted); white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 0.2rem; }
.nav-link { display: inline-flex; align-items: center; padding: 0.42rem 0.9rem; border-radius: var(--radius-full); font-size: 0.85rem; font-weight: 500; color: #d1d5db; transition: color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease; white-space: nowrap; }
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active { color: #fff; font-weight: 700; background: linear-gradient(135deg, rgba(109,40,217,0.55), rgba(34,211,238,0.35)); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12); }
.menu-btn { display: none; background: transparent; border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-full); padding: 0.45rem 0.65rem; color: #f3f4f6; transition: background 0.3s ease; }
.menu-btn:hover { background: rgba(255,255,255,0.1); }
.gradient-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; background: var(--grad); color: #fff; font-weight: 700; font-size: 0.88rem; padding: 0.55rem 1.4rem; border-radius: var(--radius-full); transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease; box-shadow: 0 8px 22px rgba(109,40,217,0.35); white-space: nowrap; }
.gradient-btn:hover { filter: brightness(1.15); transform: translateY(-1px); box-shadow: 0 12px 28px rgba(109,40,217,0.5); }
.gradient-btn:active { transform: scale(0.98); }

/* ===== Hero ===== */
.category-hero { position: relative; min-height: 58vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 7.5rem 1.5rem 4rem; background-size: cover; background-position: center; }
.category-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(14,14,20,0.55) 0%, rgba(14,14,20,0.8) 60%, #0e0e14 100%); }
.hero-inner { position: relative; z-index: 2; max-width: 56rem; margin: 0 auto; }
.hero-kicker { display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: #67e8f9; background: rgba(34,211,238,0.12); border: 1px solid rgba(34,211,238,0.25); border-radius: var(--radius-full); padding: 0.35rem 1rem; margin-bottom: 1.2rem; }
.hero-title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; line-height: 1.2; letter-spacing: -0.01em; }
.hero-title .grad-text { background: linear-gradient(135deg, #c4b5fd 0%, #22d3ee 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 1rem; color: #cbd5e1; max-width: 40rem; margin: 1.2rem auto 0; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem; margin-top: 1.8rem; }
.btn-ghost { display: inline-flex; align-items: center; gap: 0.4rem; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.25); color: #f3f4f6; font-weight: 600; font-size: 0.88rem; padding: 0.55rem 1.4rem; border-radius: var(--radius-full); transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.4); transform: translateY(-1px); }
.btn-ghost:active { transform: scale(0.98); }

/* ===== 板块通用 ===== */
.section-block { padding: 4.5rem 0; position: relative; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-title { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; line-height: 1.3; }
.section-title .grad-text { background: linear-gradient(135deg, #a78bfa 0%, #22d3ee 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.section-sub { color: var(--muted); font-size: 0.9rem; margin-top: 0.4rem; line-height: 1.7; }
.section-more { color: #93c5fd; font-size: 0.85rem; font-weight: 600; transition: color 0.3s ease; }
.section-more:hover { color: #fff; }

/* ===== 数据徽章 ===== */
.stat-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.9rem; margin-top: -2.2rem; position: relative; z-index: 5; padding: 0 1.5rem; }
.stat-pill { display: inline-flex; align-items: center; gap: 0.5rem; background: #1b1b24; border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-full); padding: 0.7rem 1.3rem; font-size: 0.85rem; color: #cbd5e1; box-shadow: 0 8px 24px rgba(0,0,0,0.35); backdrop-filter: blur(12px); }
.stat-num { font-weight: 900; font-size: 1.2rem; color: #22d3ee; }
.stat-unit { color: var(--muted); font-size: 0.78rem; }

/* ===== 多行紧凑榜单列表 ===== */
.rank-wrap { display: grid; grid-template-columns: 1fr; gap: 1.2rem; }
.rank-list { display: flex; flex-direction: column; gap: 0.7rem; }
.rank-item { display: flex; align-items: center; gap: 0.9rem; padding: 0.85rem 1rem; background: var(--card); border: 1px solid rgba(255,255,255,0.06); border-radius: 1rem; transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; }
.rank-item:hover { transform: translateY(-2px); border-color: rgba(139,92,246,0.45); box-shadow: 0 10px 26px rgba(109,40,217,0.18); }
.rank-num { font-size: 1.4rem; font-weight: 900; min-width: 2rem; text-align: center; color: #6b7280; font-style: italic; }
.rank-item:nth-child(1) .rank-num { color: #f97316; }
.rank-item:nth-child(2) .rank-num { color: #d1d5db; }
.rank-item:nth-child(3) .rank-num { color: #b45309; }
.rank-thumb { width: 4.2rem; height: 3rem; border-radius: 0.5rem; object-fit: cover; flex-shrink: 0; background: #2a2a35; }
.rank-info { flex: 1; min-width: 0; }
.rank-title { font-weight: 700; font-size: 0.93rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-desc { font-size: 0.8rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 0.12rem; }
.rank-meta { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }
.tag-badge { display: inline-flex; align-items: center; padding: 0.2rem 0.6rem; border-radius: var(--radius-full); font-size: 0.7rem; font-weight: 600; background: rgba(139,92,246,0.2); color: #c4b5fd; white-space: nowrap; }
.tag-badge.hot { background: rgba(249,115,22,0.18); color: #fb923c; }
.tag-badge.cyan { background: rgba(34,211,238,0.15); color: #67e8f9; }
.score-badge { font-weight: 800; font-size: 0.92rem; color: #22d3ee; min-width: 1.8rem; text-align: right; }

/* ===== 榜单分组 ===== */
.rank-group { background: linear-gradient(145deg, rgba(109,40,217,0.06), rgba(34,211,238,0.03)); border: 1px solid rgba(255,255,255,0.06); border-radius: 1.5rem; padding: 1.8rem 1.5rem; }
.rank-group-head { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 1.2rem; }
.rank-group-icon { display: inline-flex; align-items: center; justify-content: center; width: 2.4rem; height: 2.4rem; border-radius: 0.75rem; background: linear-gradient(135deg, #6d28d9, #22d3ee); color: #fff; font-size: 1.1rem; }
.rank-group-title { font-size: 1.2rem; font-weight: 800; }
.rank-group-desc { font-size: 0.82rem; color: var(--muted); margin-top: 0.1rem; }

/* ===== CTA ===== */
.cta-band { position: relative; overflow: hidden; background: linear-gradient(135deg, #6d28d9 0%, #4c1d95 55%, #22d3ee 130%); border-radius: 2rem; padding: 3.5rem 2rem; text-align: center; }
.cta-band::before { content: ""; position: absolute; top: -40%; right: -10%; width: 60%; height: 120%; background: rgba(255,255,255,0.08); border-radius: 50%; filter: blur(60px); }
.cta-band .cta-title { font-size: clamp(1.6rem, 4vw, 2.5rem); font-weight: 900; color: #fff; position: relative; z-index: 1; }
.cta-band .cta-sub { color: rgba(255,255,255,0.88); margin-top: 0.7rem; font-size: 1rem; position: relative; z-index: 1; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem; margin-top: 1.6rem; position: relative; z-index: 1; }
.cta-btn-white { display: inline-flex; align-items: center; gap: 0.4rem; background: #fff; color: #6d28d9; font-weight: 800; font-size: 0.9rem; padding: 0.65rem 1.6rem; border-radius: var(--radius-full); transition: transform 0.3s ease, box-shadow 0.3s ease; box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.cta-btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.28); }
.cta-btn-white:active { transform: scale(0.98); }
.cta-btn-ghost { display: inline-flex; align-items: center; gap: 0.4rem; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.4); color: #fff; font-weight: 700; font-size: 0.9rem; padding: 0.65rem 1.6rem; border-radius: var(--radius-full); transition: background 0.3s ease, transform 0.3s ease; }
.cta-btn-ghost:hover { background: rgba(255,255,255,0.22); transform: translateY(-2px); }
.cta-btn-ghost:active { transform: scale(0.98); }

/* ===== FAQ ===== */
.faq-section { padding: 4.5rem 0 2rem; }
.faq-list { display: flex; flex-direction: column; gap: 0.8rem; max-width: 48rem; margin: 1.5rem auto 0; }
.faq-item { background: var(--bg-soft); border: 1px solid rgba(255,255,255,0.07); border-radius: 1rem; transition: border-color 0.3s ease; }
.faq-item[open] { border-color: rgba(139,92,246,0.45); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 1.3rem; cursor: pointer; list-style: none; font-weight: 600; font-size: 0.98rem; color: #f3f4f6; transition: color 0.3s ease; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.5rem; font-weight: 400; color: #22d3ee; transition: transform 0.3s ease; line-height: 1; }
.faq-item[open] summary::after { content: "-"; color: #a78bfa; }
.faq-body { padding: 0 1.3rem 1.2rem; color: #9ca3af; font-size: 0.9rem; line-height: 1.8; }

/* ===== 页脚 ===== */
.site-footer { background: #08080d; border-top: 1px solid rgba(255,255,255,0.06); padding: 3.5rem 0 2rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; }
.footer-brand p { color: var(--muted); font-size: 0.875rem; line-height: 1.7; margin-top: 0.85rem; max-width: 26rem; }
.footer-head { font-size: 0.875rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-links a { color: var(--muted); font-size: 0.85rem; transition: color 0.3s ease; }
.footer-links a:hover { color: #fff; }
.footer-divider { border: none; border-top: 1px solid rgba(255,255,255,0.08); margin: 2.5rem 0 1.2rem; }
.footer-copy { color: #6b7280; font-size: 0.8rem; text-align: center; line-height: 1.7; }
.footer-domain { color: #4b5563; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 4.8rem; left: 1rem; right: 1rem; background: rgba(8,8,14,0.97); backdrop-filter: blur(24px); border: 1px solid rgba(255,255,255,0.1); border-radius: 1.2rem; padding: 1rem; flex-direction: column; align-items: stretch; gap: 0.4rem; z-index: 49; box-shadow: 0 24px 48px rgba(0,0,0,0.5); }
  .nav-links.open { display: flex; }
  .nav-link { padding: 0.8rem 1rem; border-radius: 0.75rem; font-size: 1rem; }
  .menu-btn { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .section-block { padding: 3rem 0; }
  .stat-strip { margin-top: -1.2rem; gap: 0.6rem; }
  .stat-pill { padding: 0.55rem 1rem; font-size: 0.8rem; }
  .rank-item { flex-wrap: wrap; gap: 0.7rem; }
  .rank-num { min-width: 1.6rem; font-size: 1.2rem; }
  .rank-info { flex: 1 1 100%; order: 3; }
  .rank-title, .rank-desc { white-space: normal; }
  .rank-meta { order: 2; margin-left: auto; }
  .rank-group { padding: 1.3rem 1rem; }
  .cta-band { padding: 2.8rem 1.5rem; }
}
@media (max-width: 520px) {
  .dock-header { top: 0.6rem; width: calc(100% - 1rem); }
  .dock-nav { padding: 0.5rem 0.8rem; }
  .brand-tag { display: none; }
  .brand-strong { font-size: 1rem; }
  .nav-link { font-size: 0.95rem; }
  .hero-title { font-size: 1.7rem; }
  .hero-sub { font-size: 0.9rem; }
  .section-title { font-size: 1.3rem; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .rank-thumb { width: 3.5rem; height: 2.6rem; }
  .stat-pill { width: 100%; justify-content: center; }
  .stat-strip { flex-direction: column; align-items: stretch; }
  .footer-brand p { font-size: 0.8rem; }
}