/* roulang page: index */
:root {
    --bg-0: #060A18;
    --bg-1: #0A1128;
    --bg-2: #101A3A;
    --primary: #00C6FF;
    --primary-deep: #2860FF;
    --accent: #7B5CFF;
    --hot: #FF9F43;
    --text-1: #EDF2FF;
    --text-2: #A3B1D4;
    --text-3: #6C7BA0;
    --border: rgba(255,255,255,0.10);
    --glass: rgba(255,255,255,0.05);
    --radius: 16px;
    --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
    --glow-primary: 0 0 20px rgba(0,198,255,0.35);
    --glow-primary-hover: 0 0 28px rgba(0,198,255,0.55);
    --section-gap: 96px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
    background: var(--bg-0);
    color: var(--text-1);
    line-height: 1.6;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; transition: color .25s ease-out; }
  img { max-width: 100%; display: block; }
  button, input { font-family: inherit; font-size: inherit; }
  .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
  .site-bg {
    position: fixed; inset: 0; z-index: -2; pointer-events: none;
    background:
      radial-gradient(ellipse 60% 40% at 15% 0%, rgba(0,198,255,0.10), transparent 60%),
      radial-gradient(ellipse 50% 35% at 85% 20%, rgba(123,92,255,0.08), transparent 60%),
      var(--bg-0);
  }
  .site-grid-overlay {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background-image:
      linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse 75% 65% at 50% 0%, #000 40%, transparent 100%);
  }
  ::selection { background: rgba(0,198,255,.3); color: #fff; }
  a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* ===== 顶部信息条 ===== */
  .top-bar {
    height: 42px;
    background: rgba(4,10,26,0.8);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex; align-items: center;
    font-size: 14px;
    color: var(--text-2);
  }
  .top-bar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
  .top-bar-domain { font-family: 'Courier New', monospace; font-size: 13px; color: var(--text-3); letter-spacing: .5px; }
  .top-bar-tip { font-size: 13px; color: var(--text-2); }
  .top-bar-actions { display: flex; align-items: center; gap: 14px; }
  .top-bar-login { font-size: 13px; color: var(--text-2); transition: .25s; padding: 4px 8px; border-radius: 6px; }
  .top-bar-login:hover { color: var(--primary); }
  .top-bar-reg {
    font-size: 13px; font-weight: 600;
    color: #fff;
    background: linear-gradient(120deg, var(--primary), var(--accent));
    border: none; border-radius: 8px;
    padding: 5px 16px;
    cursor: pointer;
    box-shadow: 0 0 14px rgba(0,198,255,0.25);
    transition: all .25s ease-out;
  }
  .top-bar-reg:hover { box-shadow: 0 0 22px rgba(0,198,255,0.45); transform: translateY(-1px); }
  .top-bar-reg:active { transform: translateY(0); }

  /* ===== 主导航 ===== */
  .site-header {
    position: sticky; top: 0; z-index: 100;
    height: 76px;
    background: rgba(6,10,24,0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: box-shadow .3s ease-out;
  }
  .site-header.scrolled { box-shadow: 0 8px 30px rgba(0,0,0,0.45); }
  .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
  .logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .logo-mark {
    width: 38px; height: 38px; border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 18px rgba(0,198,255,0.35);
    position: relative; overflow: hidden;
  }
  .logo-mark::after {
    content: ''; position: absolute; top: 0; left: -45%;
    width: 40%; height: 100%; background: rgba(255,255,255,0.35);
    transform: skewX(-25deg);
    animation: logo-shine 3.5s infinite;
  }
  @keyframes logo-shine {
    0% { left: -45%; }
    55% { left: 135%; }
    100% { left: 135%; }
  }
  .logo-mark svg { width: 22px; height: 22px; stroke: #fff; fill: none; stroke-width: 2.4; }
  .logo-text { font-size: 19px; font-weight: 800; color: var(--text-1); letter-spacing: 1px; white-space: nowrap; }
  .logo-text span { color: var(--primary); text-shadow: 0 0 12px rgba(0,198,255,0.4); }
  .main-nav { display: flex; align-items: center; gap: 30px; margin: 0 auto; padding: 0 30px; }
  .main-nav a {
    position: relative; font-size: 15px; font-weight: 500; color: var(--text-2);
    padding: 8px 2px; transition: color .25s ease-out;
  }
  .main-nav a:hover { color: var(--text-1); }
  .main-nav a.active { color: var(--text-1); font-weight: 600; }
  .main-nav a.active::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
    height: 3px; border-radius: 2px;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(0,198,255,0.6);
  }
  .nav-cta {
    display: inline-flex; align-items: center; gap: 6px;
    background: linear-gradient(120deg, var(--primary), var(--accent));
    color: #fff; font-size: 14px; font-weight: 600;
    border: none; border-radius: 10px;
    padding: 9px 20px;
    cursor: pointer;
    box-shadow: var(--glow-primary);
    transition: all .25s ease-out;
    flex-shrink: 0;
  }
  .nav-cta:hover { box-shadow: var(--glow-primary-hover); transform: translateY(-1px); }
  .nav-cta:active { transform: translateY(0); }
  .menu-btn {
    display: none; width: 42px; height: 42px; border: 1px solid rgba(255,255,255,0.12);
    border-radius: 10px; background: rgba(255,255,255,0.05);
    cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  }
  .menu-btn span { width: 20px; height: 2px; background: var(--text-1); border-radius: 2px; transition: .3s; }
  .mobile-drawer {
    display: none; position: fixed; top: 0; right: 0; bottom: 0; z-index: 200;
    width: 280px; background: #0A1128; border-left: 1px solid rgba(255,255,255,0.10);
    padding: 32px 24px; flex-direction: column; gap: 18px;
    transform: translateX(100%); transition: transform .3s ease-out;
  }
  .mobile-drawer.open { transform: translateX(0); }
  .mobile-drawer a { font-size: 16px; color: var(--text-2); padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .mobile-drawer a.active { color: var(--primary); }
  .drawer-mask {
    display: none; position: fixed; inset: 0; z-index: 190; background: rgba(0,0,0,0.5);
    opacity: 0; transition: opacity .3s;
  }
  .drawer-mask.show { opacity: 1; }

  /* ===== Hero ===== */
  .hero {
    position: relative; min-height: calc(80vh); max-height: 800px;
    display: flex; align-items: center;
    background-image: linear-gradient(90deg, rgba(6,10,24,0.96) 0%, rgba(6,10,24,0.78) 45%, rgba(10,17,40,0.45) 100%), url('/assets/images/backpic/back-1.png');
    background-size: cover; background-position: center center;
    overflow: hidden;
  }
  .hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1px);
    background-size: 26px 26px;
    opacity: 0.5; pointer-events: none;
  }
  .hero .container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 60px; padding: 80px 24px 100px; }
  .hero-copy { max-width: 600px; }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(0,198,255,0.12); border: 1px solid rgba(0,198,255,0.3);
    color: var(--primary); font-size: 13px; font-weight: 600;
    padding: 6px 14px; border-radius: 999px; margin-bottom: 24px;
    letter-spacing: 1px;
  }
  .hero-badge::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--primary); box-shadow: 0 0 8px rgba(0,198,255,0.8);
    animation: pulse-dot 1.8s infinite;
  }
  @keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:.4} }
  .hero h1 {
    font-size: 52px; line-height: 1.15; font-weight: 800;
    color: var(--text-1); letter-spacing: 2px;
    text-shadow: 0 0 30px rgba(0,198,255,0.45);
    margin-bottom: 18px;
  }
  .hero h1 .glow { color: var(--primary); text-shadow: 0 0 36px rgba(0,198,255,0.7); }
  .hero-sub { font-size: 17px; color: var(--text-2); margin-bottom: 32px; max-width: 420px; line-height: 1.7; }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: linear-gradient(120deg, var(--primary), var(--primary-deep));
    color: #fff; font-size: 15px; font-weight: 700;
    border: none; border-radius: 12px; padding: 14px 30px;
    cursor: pointer; box-shadow: var(--glow-primary);
    transition: all .25s ease-out;
  }
  .btn-primary:hover { box-shadow: var(--glow-primary-hover); transform: translateY(-2px); }
  .btn-primary:active { transform: translateY(0); }
  .btn-ghost {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--text-1); font-size: 15px; font-weight: 500;
    border: 1px solid rgba(255,255,255,0.22); border-radius: 12px; padding: 14px 26px;
    cursor: pointer; transition: all .25s ease-out;
  }
  .btn-ghost:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 18px rgba(0,198,255,0.2); }
  .btn-ghost:active { transform: translateY(0); }
  .hero-card {
    background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    max-width: 330px; padding: 20px; text-align: center;
    position: relative; overflow: hidden;
  }
  .hero-card::after {
    content: ''; position: absolute; top: -40%; right: -40%;
    width: 120%; height: 120%; pointer-events: none;
    background: radial-gradient(circle at 70% 30%, rgba(0,198,255,0.15), transparent 60%);
  }
  .hero-card img { border-radius: 12px; margin-bottom: 14px; width: 100%; height: 160px; object-fit: cover; }
  .hero-card-title { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 8px; }
  .hero-card-status {
    display: inline-flex; align-items: center; gap: 5px;
    background: rgba(255,159,67,0.15); border: 1px solid rgba(255,159,67,0.35);
    color: var(--hot); font-size: 12px; font-weight: 600;
    padding: 4px 12px; border-radius: 999px;
  }
  .hero-card-status::before {
    content: ''; width: 5px; height: 5px; border-radius: 50%;
    background: var(--hot); animation: pulse-dot 1.4s infinite;
  }

  /* ===== 倒计时条 ===== */
  .countdown-wrap { margin-top: -52px; position: relative; z-index: 10; padding-bottom: 0; }
  .countdown-bar {
    background: var(--glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border); border-radius: 16px;
    box-shadow: var(--shadow-card);
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 28px; gap: 20px; flex-wrap: wrap;
    transition: border-color .3s ease-out;
  }
  .countdown-bar:hover { border-color: rgba(0,198,255,0.3); }
  .countdown-left { display: flex; align-items: center; gap: 12px; }
  .countdown-tag {
    background: linear-gradient(120deg, var(--hot), #FFB35C);
    color: #0B0F1E; font-size: 13px; font-weight: 800;
    padding: 4px 14px; border-radius: 8px; letter-spacing: 1px;
    box-shadow: 0 0 14px rgba(255,159,67,0.35);
  }
  .countdown-name { font-size: 15px; font-weight: 600; color: var(--text-1); }
  .countdown-timer { display: flex; align-items: center; gap: 10px; }
  .count-num {
    background: rgba(0,0,0,0.45); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px; padding: 10px 14px; min-width: 58px;
    text-align: center;
    font-family: 'Rajdhani','Barlow Condensed','Courier New',monospace;
    font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums;
    color: var(--primary);
    text-shadow: 0 0 12px rgba(0,198,255,0.45);
    transition: border-color .3s ease-out, box-shadow .3s ease-out;
  }
  .countdown-bar:hover .count-num { border-color: rgba(0,198,255,0.2); box-shadow: 0 0 10px rgba(0,198,255,0.1); }
  .count-unit { display: block; font-family: sans-serif; font-size: 11px; color: var(--text-3); margin-top: 2px; letter-spacing: 1px; }
  .count-sep { font-size: 20px; color: var(--text-3); font-family: monospace; }

  /* ===== 板块通用 ===== */
  .section { padding: 72px 0; }
  .section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 44px; gap: 20px; }
  .section-title { font-size: 34px; font-weight: 800; color: var(--text-1); line-height: 1.3; }
  .section-title .accent-text { color: var(--primary); text-shadow: 0 0 20px rgba(0,198,255,0.3); }
  .section-desc { font-size: 15px; color: var(--text-3); margin-top: 8px; }
  .section-link { font-size: 14px; color: var(--text-2); display: inline-flex; align-items: center; gap: 6px; transition: .25s; }
  .section-link:hover { color: var(--primary); }
  .hud-label {
    display: inline-block;
    background: rgba(0,198,255,0.1);
    border-left: 3px solid var(--primary);
    color: var(--primary);
    font-size: 12px; font-weight: 700; letter-spacing: 2px;
    padding: 5px 12px; margin-bottom: 18px;
    clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
    text-transform: uppercase;
  }

  /* ===== 活动卖点 ===== */
  .feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .feature-card {
    background: var(--glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 28px; display: flex; gap: 20px; align-items: flex-start;
    transition: all .3s ease-out;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  }
  .feature-card:hover { transform: translateY(-4px); border-color: rgba(0,198,255,0.35); box-shadow: 0 12px 34px rgba(0,0,0,0.4), 0 0 20px rgba(0,198,255,0.12); }
  .feature-icon {
    width: 52px; height: 52px; border-radius: 14px; flex-shrink: 0;
    background: rgba(0,198,255,0.1); border: 1px solid rgba(0,198,255,0.2);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
  }
  .feature-icon svg { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 2; }
  .feature-card:nth-child(2) .feature-icon { background: rgba(123,92,255,0.1); border-color: rgba(123,92,255,0.25); color: var(--accent); }
  .feature-card:nth-child(3) .feature-icon { background: rgba(255,159,67,0.1); border-color: rgba(255,159,67,0.25); color: var(--hot); }
  .feature-card:nth-child(4) .feature-icon { background: rgba(0,198,255,0.08); border-color: rgba(0,198,255,0.2); color: var(--primary); }
  .feature-card h3 { font-size: 17px; font-weight: 700; color: var(--text-1); margin-bottom: 6px; }
  .feature-card p { font-size: 14px; color: var(--text-2); line-height: 1.6; }

  /* ===== 亮点图墙 ===== */
  .gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 220px; gap: 20px; }
  .gallery-item { position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer; border: 1px solid var(--border); transition: border-color .3s ease-out, box-shadow .3s ease-out; }
  .gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease-out; }
  .gallery-item:hover { border-color: rgba(0,198,255,0.4); box-shadow: 0 0 26px rgba(0,198,255,0.2); }
  .gallery-item:hover img { transform: scale(1.03); }
  .gallery-item::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(6,10,24,0.85) 100%); }
  .gallery-item.big { grid-column: span 2; grid-row: span 2; }
  .gallery-item.medium { grid-column: span 1; grid-row: span 2; }
  .gallery-item.small { grid-column: span 1; grid-row: span 1; }
  .gallery-tag {
    position: absolute; z-index: 3; top: 14px; left: 14px;
    background: rgba(6,10,24,0.8); backdrop-filter: blur(8px);
    border: 1px solid rgba(0,198,255,0.35);
    color: var(--primary); font-size: 12px; font-weight: 700;
    padding: 4px 12px; border-radius: 4px; letter-spacing: 1px;
    clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
    transition: box-shadow .3s;
  }
  .gallery-item:hover .gallery-tag { box-shadow: 0 0 12px rgba(0,198,255,0.4); }
  .gallery-tag.hot { color: var(--hot); border-color: rgba(255,159,67,0.4); }
  .gallery-tag.purple { color: var(--accent); border-color: rgba(123,92,255,0.4); }
  .gallery-info { position: absolute; z-index: 3; left: 16px; right: 16px; bottom: 14px; }
  .gallery-info h3 { font-size: 17px; font-weight: 700; color: var(--text-1); }
  .gallery-info p { font-size: 13px; color: var(--text-2); margin-top: 2px; }

  /* ===== CTA ===== */
  .cta-box {
    border-radius: 24px; padding: 52px 48px;
    background: linear-gradient(120deg, rgba(0,198,255,0.4), rgba(123,92,255,0.4)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  }
  .cta-box::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(ellipse 50% 100% at 80% 100%, rgba(123,92,255,0.25), transparent 70%);
    pointer-events: none;
  }
  .cta-copy { position: relative; z-index: 2; max-width: 560px; }
  .cta-copy h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 8px; text-shadow: 0 2px 16px rgba(0,0,0,0.3); }
  .cta-copy p { font-size: 15px; color: rgba(255,255,255,0.85); }
  .cta-btn {
    position: relative; z-index: 2;
    background: #fff; color: #0B0F1E; font-size: 16px; font-weight: 700;
    border: none; border-radius: 14px; padding: 16px 36px;
    cursor: pointer; box-shadow: 0 4px 26px rgba(0,0,0,0.35);
    transition: all .3s ease-out;
  }
  .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.4), 0 0 28px rgba(255,255,255,0.35); }
  .cta-btn:active { transform: translateY(0); }

  /* ===== FAQ ===== */
  .faq-wrap {
    background: var(--bg-1); border: 1px solid var(--border); border-radius: 24px;
    padding: 36px; overflow: hidden;
  }
  .faq-item { border-bottom: 1px solid rgba(255,255,255,0.07); }
  .faq-item:last-child { border-bottom: none; }
  .faq-q {
    width: 100%; background: none; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: space-between;
    padding: 22px 4px; gap: 16px; text-align: left;
    font-size: 16px; font-weight: 600; color: var(--text-1);
    transition: color .25s ease-out;
  }
  .faq-q:hover { color: var(--primary); }
  .faq-icon {
    width: 28px; height: 28px; flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.18); border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; font-weight: 300; color: var(--text-2);
    transition: all .3s ease-out;
  }
  .faq-q:hover .faq-icon { border-color: var(--primary); color: var(--primary); }
  .faq-q.open .faq-icon { transform: rotate(45deg); border-color: var(--primary); color: var(--primary); }
  .faq-a {
    max-height: 0; overflow: hidden; transition: max-height .3s ease-out;
    padding: 0 4px; font-size: 14px; color: var(--text-2); line-height: 1.7;
  }
  .faq-a p { padding-bottom: 20px; }

  /* ===== 最新资讯 ===== */
  .news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .news-card-main {
    background: var(--glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: all .3s ease-out; box-shadow: 0 4px 18px rgba(0,0,0,0.25);
  }
  .news-card-main:hover { border-color: rgba(0,198,255,0.35); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.4); }
  .news-card-main .news-cover { width: 100%; height: 180px; object-fit: cover; transition: transform .4s; }
  .news-card-main:hover .news-cover { transform: scale(1.03); }
  .news-body { padding: 22px; }
  .news-badge {
    display: inline-block; background: rgba(0,198,255,0.12);
    border: 1px solid rgba(0,198,255,0.25); color: var(--primary);
    font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
    margin-bottom: 10px;
  }
  .news-badge.purple { background: rgba(123,92,255,0.12); border-color: rgba(123,92,255,0.25); color: var(--accent); }
  .news-title { font-size: 18px; font-weight: 700; color: var(--text-1); margin-bottom: 8px; line-height: 1.4; transition: color .25s; }
  .news-card-main:hover .news-title { color: var(--primary); }
  .news-excerpt { font-size: 14px; color: var(--text-2); line-height: 1.65; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .news-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-3); }
  .news-meta time { display: inline-flex; align-items: center; gap: 4px; }
  .news-link { font-size: 13px; color: var(--primary); font-weight: 600; transition: .25s; }
  .news-link:hover { text-shadow: 0 0 12px rgba(0,198,255,0.5); }
  .news-sub-list { display: flex; flex-direction: column; gap: 20px; }
  .news-sub-item {
    background: var(--glass); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border); border-radius: 14px;
    padding: 18px 20px; transition: all .3s ease-out;
    display: block;
  }
  .news-sub-item:hover { border-color: rgba(0,198,255,0.3); background: rgba(255,255,255,0.07); transform: translateX(4px); }
  .news-sub-item h4 { font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: 4px; line-height: 1.4; }
  .news-sub-item:hover h4 { color: var(--primary); }
  .news-sub-item p { font-size: 13px; color: var(--text-2); line-height: 1.55; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
  .news-empty {
    grid-column: 1 / -1;
    text-align: center; padding: 60px 20px;
    color: var(--text-3); font-size: 15px;
    border: 1px dashed rgba(255,255,255,0.15); border-radius: 16px;
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: #050914; border-top: 1px solid rgba(255,255,255,0.08);
    padding: 64px 0 0; margin-top: 40px;
  }
  .footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 0.8fr 1fr; gap: 44px; padding-bottom: 48px; }
  .footer-brand p { font-size: 14px; color: var(--text-3); margin-top: 14px; line-height: 1.7; max-width: 280px; }
  .footer-title { font-size: 14px; font-weight: 700; color: var(--text-1); letter-spacing: 1px; margin-bottom: 18px; }
  .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 14px; color: var(--text-3); transition: color .25s ease-out; }
  .footer-links a:hover { color: var(--primary); padding-left: 4px; }
  .footer-contact { font-size: 14px; color: var(--text-3); line-height: 2; }
  .footer-contact span { display: block; }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0;
    font-size: 13px; color: var(--text-3); text-align: center;
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .hero h1 { font-size: 42px; }
    .hero .container { gap: 30px; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
    .gallery-item.big { grid-column: span 2; grid-row: span 2; }
    .gallery-item.medium { grid-column: span 1; grid-row: span 1; }
    .gallery-item.small { grid-column: span 1; grid-row: span 1; }
    .section { padding: 60px 0; }
  }
  @media (max-width: 768px) {
    .top-bar-tip { display: none; }
    .main-nav { display: none; }
    .nav-cta { display: none; }
    .menu-btn { display: flex; }
    .mobile-drawer { display: flex; }
    .drawer-mask { display: block; }
    .hero { min-height: auto; }
    .hero .container { flex-direction: column; padding: 60px 20px 90px; text-align: center; }
    .hero-copy { max-width: 100%; }
    .hero-actions { justify-content: center; }
    .hero-card { max-width: 100%; }
    .hero h1 { font-size: 34px; }
    .hero-sub { margin-left: auto; margin-right: auto; }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
    .feature-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 180px; }
    .gallery-item.big { grid-column: span 1; grid-row: span 1; }
    .gallery-item.medium { grid-column: span 1; grid-row: span 1; }
    .gallery-item.small { grid-column: span 1; grid-row: span 1; }
    .news-grid { grid-template-columns: 1fr; }
    .countdown-bar { flex-direction: column; text-align: center; }
    .countdown-timer { justify-content: center; flex-wrap: wrap; }
    .cta-box { padding: 36px 24px; flex-direction: column; text-align: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .section-head { flex-direction: column; align-items: flex-start; }
    .container { padding: 0 16px; }
    .countdown-wrap { margin-top: -36px; }
  }
  @media (max-width: 480px) {
    .hero h1 { font-size: 28px; }
    .count-num { min-width: 48px; font-size: 22px; padding: 8px 10px; }
    .count-sep { font-size: 16px; }
    .cta-btn { width: 100%; }
  }

  /* ===== 工具箱 ===== */
  .text-glow { text-shadow: 0 0 30px rgba(0,198,255,0.45); }
  .tnum { font-variant-numeric: tabular-nums; }

/* roulang page: category1 */
:root {
  --bg-0: #060A18;
  --bg-1: #0A1128;
  --bg-2: #101A3A;
  --primary: #00C6FF;
  --primary-deep: #2860FF;
  --accent: #7B5CFF;
  --hot: #FF9F43;
  --text-1: #EDF2FF;
  --text-2: #A3B1D4;
  --text-3: #6C7BA0;
  --border: rgba(255, 255, 255, 0.10);
  --glass: rgba(255, 255, 255, 0.05);
  --radius: 16px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  font-size: 15px;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease, background .25s ease;
}

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 24px;
}

/* 顶部信息条 */
.top-bar {
  height: 40px;
  background: rgba(4, 10, 26, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

.top-domain {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: .5px;
}

.top-tip {
  font-size: 12px;
  color: var(--text-2);
}

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

.top-actions a {
  font-size: 12px;
  color: var(--text-2);
}

.top-actions a:hover {
  color: var(--primary);
}

.top-actions .top-register {
  padding: 3px 14px;
  border-radius: 20px;
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.top-actions .top-register:hover {
  background: rgba(0, 198, 255, 0.12);
  color: var(--primary);
}

/* 主导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 78px;
  background: rgba(6, 10, 24, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow .3s ease, background .3s ease;
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  background: rgba(6, 10, 24, 0.94);
}

.site-header>.container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(0, 198, 255, 0.35);
  flex-shrink: 0;
}

.logo-mark svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--text-1);
  white-space: nowrap;
}

.logo-text span {
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  padding: 6px 2px;
  transition: color .25s ease;
}

.main-nav a:hover {
  color: var(--text-1);
}

.main-nav a.active {
  color: var(--text-1);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 10px rgba(0, 198, 255, 0.7);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.35);
  transition: box-shadow .3s ease, transform .2s ease;
  flex-shrink: 0;
}

.nav-cta:hover {
  box-shadow: 0 0 30px rgba(0, 198, 255, 0.55);
  transform: translateY(-1px);
}

.nav-cta:active {
  transform: translateY(1px);
}

.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.menu-btn span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-1);
  transition: all .3s ease;
}

.menu-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.menu-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  transition: all .3s ease;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 0 34px rgba(0, 198, 255, 0.55);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 14px rgba(0, 198, 255, 0.4);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-1);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 198, 255, 0.06);
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.15);
}

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

/* Hero区 */
.cat-hero {
  position: relative;
  padding: 110px 0 100px;
  background:
    linear-gradient(120deg, rgba(6, 10, 24, 0.6), rgba(10, 17, 40, 0.82)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 198, 255, 0.14) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.5;
}

.cat-hero .container {
  position: relative;
  z-index: 2;
}

.cat-hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0, 198, 255, 0.12);
  border: 1px solid rgba(0, 198, 255, 0.28);
  padding: 5px 16px;
  border-radius: 6px;
  letter-spacing: 1px;
  margin-bottom: 20px;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.cat-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-1);
  text-shadow: 0 0 30px rgba(0, 198, 255, 0.45);
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.cat-hero p {
  font-size: 16px;
  color: var(--text-2);
  max-width: 640px;
  margin-bottom: 34px;
  line-height: 1.8;
}

.cat-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* 图墙区 */
.media-wall-section {
  padding: 96px 0 20px;
}

.section-title-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 20px;
  flex-wrap: wrap;
}

.section-title-wrap h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-1);
  line-height: 1.3;
}

.section-title-wrap .sec-sub {
  font-size: 14px;
  color: var(--text-3);
}

.media-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 210px;
  gap: 20px;
}

.media-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}

.media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.media-item:hover img {
  transform: scale(1.03);
}

.media-item:hover {
  border-color: var(--primary);
  box-shadow: 0 0 25px rgba(0, 198, 255, 0.18);
}

.media-item-large {
  grid-column: span 2;
  grid-row: span 2;
}

.media-item .hud-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, rgba(0, 198, 255, 0.22), rgba(123, 92, 255, 0.22));
  border: 1px solid rgba(0, 198, 255, 0.4);
  backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: 4px;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  letter-spacing: 1px;
}

.media-item .hud-tag.hot {
  border-color: rgba(255, 159, 67, 0.5);
  background: linear-gradient(90deg, rgba(255, 159, 67, 0.25), rgba(255, 80, 80, 0.22));
}

.media-item .media-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6, 10, 24, 0.82));
  z-index: 1;
}

.media-item .media-text {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
}

.media-item .media-text h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.media-item .media-text p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

/* 内容条目列表 */
.entry-section {
  padding: 60px 0 96px;
}

.entry-list {
  border-top: 1px solid var(--border);
}

.entry-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
  transition: background .25s ease, padding .25s ease;
}

.entry-item:hover {
  background: rgba(255, 255, 255, 0.02);
  padding-left: 14px;
  padding-right: 14px;
  border-color: rgba(0, 198, 255, 0.25);
  border-radius: 10px;
}

.entry-date {
  flex-shrink: 0;
  width: 64px;
  text-align: center;
  font-family: "Barlow Condensed", "Rajdhani", sans-serif;
  font-size: 13px;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 0;
  font-weight: 600;
  letter-spacing: .5px;
}

.entry-info {
  flex: 1;
  min-width: 0;
}

.entry-info h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 4px;
  transition: color .25s ease;
}

.entry-item:hover .entry-info h3 {
  color: var(--primary);
}

.entry-info p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.entry-link {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid rgba(0, 198, 255, 0.28);
  transition: all .25s ease;
}

.entry-link:hover {
  background: rgba(0, 198, 255, 0.1);
  box-shadow: 0 0 16px rgba(0, 198, 255, 0.18);
  border-color: var(--primary);
}

.entry-more {
  display: inline-flex;
  align-items: center;
  margin-top: 30px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  gap: 6px;
  transition: color .25s ease, gap .25s ease;
}

.entry-more:hover {
  color: var(--primary);
  gap: 10px;
}

/* 卖点区 */
.feature-section {
  padding: 96px 0;
  background: var(--bg-1);
  position: relative;
}

.feature-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 92, 255, 0.14), transparent 70%);
  pointer-events: none;
}

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

.feature-card {
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.45), 0 0 20px rgba(0, 198, 255, 0.1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(0, 198, 255, 0.12);
  border: 1px solid rgba(0, 198, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/* FAQ区 */
.faq-section {
  padding: 96px 0;
  background: var(--bg-1);
}

.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(16, 26, 58, 0.5);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  text-align: left;
  background: transparent;
  transition: color .25s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 400;
  color: var(--text-2);
  transition: transform .3s ease, background .3s ease, border-color .3s ease, color .3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: rgba(0, 198, 255, 0.12);
  border-color: var(--primary);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  padding: 0 4px;
}

.faq-answer p {
  padding: 0 0 20px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
}

/* CTA区 */
.cta-section {
  padding: 96px 0;
}

.cta-box {
  border-radius: 20px;
  background: linear-gradient(120deg, rgba(0, 198, 255, 0.36), rgba(123, 92, 255, 0.4));
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 52px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 20%, rgba(0, 198, 255, 0.3), transparent 50%);
  pointer-events: none;
}

.cta-box .cta-left {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 260px;
}

.cta-box h2 {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.3;
}

.cta-box p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
}

.cta-box .btn-cta {
  position: relative;
  z-index: 1;
  background: #fff;
  color: #0A1128;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 34px;
  border-radius: 28px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  transition: box-shadow .3s ease, transform .2s ease;
}

.cta-box .btn-cta:hover {
  box-shadow: 0 0 34px rgba(255, 255, 255, 0.35), 0 6px 30px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

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

.cta-box .btn-cta:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* 页脚 */
.site-footer {
  background: #050914;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.7;
  max-width: 300px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-3);
  transition: color .25s ease, padding-left .25s ease;
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 6px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .cat-hero h1 {
    font-size: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .top-tip {
    display: none;
  }

  .site-header {
    height: auto;
    padding: 12px 0;
  }

  .site-header>.container {
    flex-wrap: wrap;
    height: auto;
    gap: 10px;
  }

  .logo-text {
    font-size: 18px;
  }

  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--bg-1);
    border-radius: 12px;
    padding: 14px;
    border: 1px solid var(--border);
    margin-top: 4px;
    box-shadow: var(--shadow);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 10px 8px;
  }

  .main-nav a.active::after {
    display: none;
  }

  .main-nav a.active {
    background: rgba(0, 198, 255, 0.08);
    border-radius: 8px;
    padding-left: 12px;
  }

  .menu-btn {
    display: flex;
  }

  .nav-cta {
    margin-left: auto;
    padding: 7px 16px;
    font-size: 13px;
  }

  .cat-hero {
    padding: 72px 0 64px;
  }

  .cat-hero h1 {
    font-size: 30px;
  }

  .cat-hero p {
    font-size: 14px;
  }

  .media-wall {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 160px;
  }

  .media-item-large {
    grid-column: span 2;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .entry-item {
    flex-wrap: wrap;
    gap: 12px;
  }

  .entry-date {
    width: auto;
    padding: 5px 12px;
  }

  .entry-link {
    width: 100%;
    text-align: center;
  }

  .cta-box {
    padding: 36px 24px;
  }

  .cta-box h2 {
    font-size: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .faq-wrap {
    padding: 18px;
  }
}

@media (max-width: 520px) {
  .media-wall {
    grid-template-columns: 1fr;
    grid-auto-rows: 180px;
  }

  .media-item-large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .section-title-wrap h2 {
    font-size: 24px;
  }

  .cat-hero h1 {
    font-size: 26px;
  }

  .top-domain {
    font-size: 11px;
  }

  .top-actions {
    gap: 8px;
  }
}

/* roulang page: article */
:root {
    --bg-0: #060A18;
    --bg-1: #0A1128;
    --bg-2: #101A3A;
    --primary: #00C6FF;
    --primary-deep: #2860FF;
    --accent: #7B5CFF;
    --hot: #FF9F43;
    --text-1: #EDF2FF;
    --text-2: #A3B1D4;
    --text-3: #6C7BA0;
    --border: rgba(255, 255, 255, 0.10);
    --glass: rgba(255, 255, 255, 0.05);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 20px rgba(0, 198, 255, 0.35);
    --shadow-glow-hover: 0 0 36px rgba(0, 198, 255, 0.55);
    --ease: 200ms ease-out;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-0);
    color: var(--text-1);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
      radial-gradient(600px 320px at 85% 8%, rgba(123, 92, 255, 0.12), transparent 60%),
      radial-gradient(520px 280px at 8% 72%, rgba(0, 198, 255, 0.08), transparent 60%);
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
  }

  img {
    max-width: 100%;
    display: block;
  }

  button {
    font-family: inherit;
    cursor: pointer;
  }

  input {
    font-family: inherit;
  }

  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* 顶部信息条 */
  .topbar {
    height: 40px;
    background: rgba(4, 10, 26, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: var(--text-3);
  }

  .topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
  }

  .topbar-tip {
    color: var(--text-2);
    letter-spacing: 0.04em;
  }

  .topbar-actions {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .topbar-login {
    color: var(--text-2);
  }

  .topbar-login:hover {
    color: var(--primary);
  }

  .topbar-reg {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 4px 14px;
    border-radius: 999px;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 0 16px rgba(0, 198, 255, 0.25);
  }

  .topbar-reg:hover {
    box-shadow: 0 0 26px rgba(0, 198, 255, 0.5);
  }

  /* 主导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 78px;
    background: rgba(6, 10, 24, 0.86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  }

  .site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 24px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    flex-shrink: 0;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 18px rgba(0, 198, 255, 0.3);
  }

  .logo-mark svg {
    width: 20px;
    height: 20px;
    fill: #fff;
  }

  .logo-text {
    color: var(--text-1);
    letter-spacing: 0.02em;
  }

  .logo-text span {
    color: var(--primary);
    margin: 0 2px;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
  }

  .main-nav a {
    position: relative;
    padding: 10px 16px;
    color: var(--text-2);
    font-weight: 500;
    font-size: 15px;
    border-radius: 10px;
  }

  .main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
  }

  .main-nav a.active {
    color: #fff;
    font-weight: 600;
  }

  .main-nav a.active::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 2px;
    height: 2px;
    background: var(--primary);
    box-shadow: 0 0 10px rgba(0, 198, 255, 0.6);
    border-radius: 2px;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 10px 22px;
    border-radius: 999px;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow-glow);
    flex-shrink: 0;
  }

  .nav-cta:hover {
    box-shadow: var(--shadow-glow-hover);
    transform: translateY(-1px);
  }

  .nav-cta:active {
    transform: translateY(1px);
  }

  .nav-cta-mobile {
    display: none;
  }

  .menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 10px;
  }

  .menu-btn span {
    height: 2px;
    border-radius: 2px;
    background: var(--text-1);
    transition: transform 200ms ease, opacity 200ms ease;
  }

  .menu-btn.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-btn.open span:nth-child(2) {
    opacity: 0;
  }

  .menu-btn.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* 面包屑 */
  .breadcrumb {
    padding: 32px 0 0;
    font-size: 13px;
    color: var(--text-3);
  }

  .breadcrumb a {
    color: var(--text-2);
  }

  .breadcrumb a:hover {
    color: var(--primary);
  }

  .breadcrumb .sep {
    margin: 0 8px;
    color: var(--text-3);
  }

  .breadcrumb .current {
    color: var(--text-3);
    display: inline-block;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: bottom;
  }

  /* 文章 Hero */
  .article-hero {
    position: relative;
    padding: 36px 0 16px;
  }

  .article-hero-bg {
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: 0.10;
    pointer-events: none;
    border-radius: 24px;
  }

  .article-category {
    display: inline-block;
    background: rgba(0, 198, 255, 0.14);
    border: 1px solid rgba(0, 198, 255, 0.35);
    color: var(--primary);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
  }

  .article-title {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-1);
    margin: 0 0 18px;
    letter-spacing: 0.02em;
  }

  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
    font-size: 14px;
    color: var(--text-3);
  }

  .article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .article-meta svg {
    width: 15px;
    height: 15px;
    opacity: 0.7;
  }

  /* 文章主体 */
  .article-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 32px 0 20px;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-2);
  }

  .article-content p {
    margin-bottom: 28px;
  }

  .article-content a {
    color: var(--primary);
    border-bottom: 1px solid rgba(0, 198, 255, 0.3);
  }

  .article-content a:hover {
    color: #fff;
    border-color: var(--primary);
  }

  .article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-1);
    border-left: 4px solid var(--primary);
    padding-left: 14px;
    margin: 44px 0 16px;
  }

  .article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-1);
    margin: 32px 0 14px;
  }

  .article-content ul,
  .article-content ol {
    margin: 0 0 28px;
    padding-left: 22px;
  }

  .article-content li {
    margin-bottom: 8px;
  }

  .article-content img {
    border-radius: 12px;
    margin: 28px 0;
    border: 1px solid rgba(255, 255, 255, 0.06);
  }

  .article-content blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(255, 255, 255, 0.04);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 28px 0;
    color: var(--text-1);
  }

  .article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    font-size: 14px;
  }

  .article-content table th {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-1);
    font-weight: 600;
    padding: 10px 14px;
    border: 1px solid var(--border);
    text-align: left;
  }

  .article-content table td {
    padding: 10px 14px;
    border: 1px solid var(--border);
    color: var(--text-2);
  }

  .article-content code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
  }

  /* 内容未找到 */
  .article-not-found {
    text-align: center;
    padding: 80px 20px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text-2);
  }

  .article-not-found a {
    display: inline-block;
    margin-top: 18px;
    padding: 10px 26px;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    font-weight: 600;
    box-shadow: var(--shadow-glow);
  }

  .article-not-found a:hover {
    box-shadow: var(--shadow-glow-hover);
  }

  /* 标签 + 分页 */
  .post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 36px 0 0;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .post-tags .tag-label {
    font-size: 13px;
    color: var(--text-3);
    padding: 6px 0;
    margin-right: 4px;
  }

  .post-tags a {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    color: var(--text-2);
    padding: 6px 15px;
    border-radius: 999px;
    font-size: 13px;
  }

  .post-tags a:hover {
    background: rgba(0, 198, 255, 0.12);
    border-color: rgba(0, 198, 255, 0.4);
    color: var(--primary);
  }

  .post-pager {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 56px;
  }

  .pager-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--glass);
    color: var(--text-2);
    font-size: 14px;
    font-weight: 500;
  }

  .pager-link:hover {
    border-color: rgba(0, 198, 255, 0.4);
    color: var(--primary);
    box-shadow: 0 0 16px rgba(0, 198, 255, 0.12);
  }

  /* 相关推荐 */
  .related-section {
    margin-bottom: 64px;
  }

  .section-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 24px;
  }

  .related-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .related-card {
    display: flex;
    gap: 16px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    padding: 16px;
    transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
  }

  .related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 198, 255, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 198, 255, 0.08);
  }

  .related-card:first-child {
    grid-column: span 2;
  }

  .related-thumb {
    flex-shrink: 0;
    width: 140px;
    min-height: 110px;
    border-radius: 12px;
    background-position: center;
    background-size: cover;
    position: relative;
    overflow: hidden;
  }

  .related-card:first-child .related-thumb {
    width: 210px;
    min-height: 130px;
  }

  .related-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .related-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-1);
    line-height: 1.4;
    margin-bottom: 8px;
  }

  .related-card:first-child .related-body h3 {
    font-size: 20px;
  }

  .related-body p {
    font-size: 13px;
    color: var(--text-3);
    line-height: 1.6;
    margin-bottom: 10px;
    flex: 1;
  }

  .related-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-3);
  }

  .related-meta .cat {
    background: rgba(123, 92, 255, 0.15);
    color: var(--accent);
    padding: 2px 10px;
    border-radius: 999px;
    font-weight: 600;
  }

  /* CTA */
  .cta-section {
    position: relative;
    border-radius: 20px;
    padding: 44px;
    margin: 56px 0 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    flex-wrap: wrap;
    background: linear-gradient(120deg, rgba(0, 198, 255, 0.36), rgba(123, 92, 255, 0.36));
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    overflow: hidden;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(400px 160px at 20% 20%, rgba(255, 255, 255, 0.08), transparent 70%);
  }

  .cta-section h2 {
    position: relative;
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
  }

  .cta-section p {
    position: relative;
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
    margin: 0;
  }

  .cta-btn {
    position: relative;
    background: #fff;
    color: var(--bg-1);
    padding: 13px 34px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 15px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  }

  .cta-btn:hover {
    box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.14), 0 10px 32px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
  }

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

  /* 页脚 */
  .site-footer {
    background: #050914;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 48px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 36px;
    padding-bottom: 36px;
  }

  .footer-brand p {
    font-size: 14px;
    color: var(--text-3);
    line-height: 1.7;
    margin-top: 4px;
    max-width: 320px;
  }

  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 16px;
  }

  .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
  }

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

  .footer-links a {
    color: var(--text-3);
    font-size: 14px;
  }

  .footer-links a:hover {
    color: var(--primary);
  }

  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: var(--text-3);
    font-size: 14px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-3);
  }

  /* 返回顶部 */
  .back-top {
    position: fixed;
    right: 24px;
    bottom: 28px;
    z-index: 90;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(10, 17, 40, 0.85);
    border: 1px solid rgba(0, 198, 255, 0.3);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease;
  }

  .back-top.show {
    opacity: 1;
    pointer-events: auto;
  }

  .back-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 24px rgba(0, 198, 255, 0.2);
  }

  .main-wrap {
    position: relative;
    z-index: 1;
    padding-bottom: 40px;
  }

  /* 响应式 */
  @media (max-width: 1024px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }

    .article-title {
      font-size: 34px;
    }
  }

  @media (max-width: 768px) {
    .container {
      padding: 0 16px;
    }

    .topbar-tip {
      display: none;
    }

    .menu-btn {
      display: flex;
      flex-shrink: 0;
    }

    .nav-cta {
      display: none;
    }

    .main-nav {
      position: absolute;
      top: 78px;
      left: 16px;
      right: 16px;
      flex-direction: column;
      align-items: stretch;
      background: rgba(10, 17, 40, 0.97);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 14px;
      gap: 4px;
      display: none;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .main-nav.open {
      display: flex;
    }

    .main-nav a {
      padding: 12px 16px;
      text-align: center;
    }

    .main-nav a.active::after {
      left: 50%;
      right: auto;
      transform: translateX(-50%);
      width: 42px;
    }

    .nav-cta-mobile {
      display: block;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      padding: 12px 20px;
      border-radius: 999px;
      color: #fff !important;
      font-weight: 600;
      text-align: center;
      box-shadow: var(--shadow-glow);
      margin-top: 8px;
    }

    .nav-cta-mobile:hover {
      box-shadow: var(--shadow-glow-hover);
    }

    .breadcrumb {
      padding: 24px 0 0;
    }

    .article-title {
      font-size: 28px;
    }

    .related-list {
      grid-template-columns: 1fr;
    }

    .related-card:first-child {
      grid-column: span 1;
    }

    .cta-section {
      padding: 28px 24px;
      margin: 40px 0 56px;
    }

    .cta-section h2 {
      font-size: 22px;
    }
  }

  @media (max-width: 520px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .related-card {
      flex-direction: column;
    }

    .related-thumb {
      width: 100%;
      min-height: 110px;
    }

    .related-card:first-child .related-thumb {
      width: 100%;
      min-height: 130px;
    }

    .post-pager {
      flex-direction: column;
    }

    .pager-link {
      justify-content: center;
    }

    .cta-section {
      flex-direction: column;
      align-items: flex-start;
    }

    .cta-btn {
      width: 100%;
      text-align: center;
    }
  }