/* roulang page: index */
:root{
  --color-primary:#1B9E8F;
  --color-accent:#FF7A45;
  --color-bg:#0F1419;
  --color-surface:#172027;
  --color-overlay:#1F2A33;
  --color-ink:#E8EEF1;
  --color-secondary:#9FB3BD;
  --color-muted:#667A85;
  --radius-lg:16px;
  --radius-md:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,0.18);
  --shadow-hover:0 16px 40px rgba(0,0,0,0.30);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--color-bg);
  color:var(--color-ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
::selection{background:rgba(27,158,143,0.35);color:#fff}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 26px;font-size:15px;font-weight:600;
  color:var(--color-bg);background:var(--color-accent);
  border-radius:var(--radius-md);box-shadow:0 4px 14px rgba(255,122,69,0.25);
  transition:all .2s ease-out;cursor:pointer;border:none;
}
.btn-primary:hover{background:#FF9066;transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,122,69,0.35)}
.btn-primary:active{background:#E5632B;transform:translateY(0)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,158,143,0.3)}

.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 26px;font-size:15px;font-weight:600;
  color:#fff;background:transparent;border:1px solid rgba(255,255,255,0.4);
  border-radius:var(--radius-md);transition:all .2s ease-out;cursor:pointer;
}
.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary);background:rgba(27,158,143,0.08)}
.btn-outline:active{background:rgba(27,158,143,0.12)}
.btn-outline:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,158,143,0.3)}
.btn-outline.on-dark{border-color:rgba(255,255,255,0.5);color:#fff}
.btn-outline.on-dark:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,0.1)}

.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 28px;font-size:15px;font-weight:700;
  color:var(--color-bg);background:var(--color-accent);
  border-radius:var(--radius-md);box-shadow:0 4px 18px rgba(0,0,0,0.2);
  transition:all .2s ease-out;cursor:pointer;border:none;
}
.btn-accent:hover{background:#FF9066;transform:translateY(-1px);box-shadow:0 6px 24px rgba(0,0,0,0.28)}
.btn-accent:active{transform:translateY(0);background:#E5632B}
.btn-accent:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,122,69,0.4)}

.btn-text{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 12px;font-size:13px;font-weight:500;
  color:var(--color-secondary);background:transparent;border:none;
  transition:color .2s ease-out;cursor:pointer;
}
.btn-text:hover{color:var(--color-primary)}
.btn-text:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,158,143,0.3);border-radius:6px}

.nav-link{
  display:flex;align-items:center;height:44px;padding:0 16px;
  font-size:14px;font-weight:500;color:var(--color-secondary);
  border-radius:8px;position:relative;transition:all .2s ease-out;
}
.nav-link:hover{color:var(--color-ink);background:rgba(255,255,255,0.04)}
.nav-link.active{color:var(--color-primary);background:rgba(27,158,143,0.08);font-weight:600}
.nav-link.active::before{
  content:'';position:absolute;left:-4px;top:50%;transform:translateY(-50%);
  width:3px;height:24px;background:var(--color-primary);border-radius:0 3px 3px 0;
}

/* 横向滚动卡片 */
.scroll-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.scroll-track::-webkit-scrollbar{display:none}
.scroll-track .card-snap{
  scroll-snap-align:start;flex:0 0 170px;
}
@media(min-width:1024px){
  .scroll-track .card-snap{flex-basis:240px}
}

/* 卡片 hover */
.card-hover{transition:transform .25s ease-out,box-shadow .25s ease-out}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-hover:hover .card-img{transform:scale(1.03)}
.card-img{transition:transform .25s ease-out}

/* 海报卡片 */
.poster-card{transition:transform .25s ease-out,box-shadow .25s ease-out}
.poster-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.poster-card:hover .poster-img{transform:scale(1.03)}
.poster-img{transition:transform .25s ease-out}

/* 播放按钮浮层 */
.play-mask{opacity:0;transition:opacity .2s ease-out}
.card-snap:hover .play-mask,.poster-card:hover .play-mask{opacity:1}
.play-btn{
  width:36px;height:36px;border-radius:50%;background:#fff;
  display:flex;align-items:center;justify-content:center;
  transform:scale(.8);transition:transform .2s ease-out;
}
.card-snap:hover .play-btn,.poster-card:hover .play-btn{transform:scale(1)}

/* FAQ */
.faq-item{border-bottom:1px solid rgba(255,255,255,0.08)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:20px 0;font-size:15px;font-weight:600;color:var(--color-ink);
  text-align:left;background:transparent;border:none;cursor:pointer;
  transition:color .2s ease-out;gap:16px;
}
.faq-question:hover{color:var(--color-primary)}
.faq-icon{
  width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:300;color:var(--color-secondary);
  transition:transform .2s ease-out,color .2s ease-out;
}
.faq-answer{
  max-height:0;overflow:hidden;font-size:14px;color:#B9C9D2;line-height:1.8;
  transition:max-height .2s ease-out,padding .2s ease-out;
}
.faq-item.active .faq-answer{max-height:320px;padding-bottom:20px}
.faq-item.active .faq-icon{transform:rotate(45deg);color:var(--color-primary)}

/* 移动端菜单 */
.mobile-panel{max-height:0;overflow:hidden;transition:max-height .25s ease-out}
.mobile-panel.open{max-height:480px}

/* 焦点样式 */
a:focus-visible,input:focus-visible,button:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(27,158,143,0.3);border-radius:6px;
}

/* 内容容器 */
.container-site{max-width:1440px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container-site{padding:0 32px}}
@media(min-width:1024px){.container-site{padding:0 48px}}

/* 区块间距 */
.section-space{padding:64px 0}
@media(min-width:1024px){.section-space{padding:80px 0}}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:56px 20px;text-align:center;color:var(--color-muted);
}
.empty-state .icon{
  width:48px;height:48px;margin-bottom:14px;opacity:.55;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;background:rgba(255,255,255,0.04);
}

/* roulang page: category1 */
:root {
      --color-primary: #1B9E8F;
      --color-accent: #FF7A45;
      --color-bg: #0F1419;
      --color-surface: #172027;
      --color-float: #1F2A33;
      --color-ink: #E8EEF1;
      --color-secondary: #9FB3BD;
      --color-muted: #667A85;
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 24px rgba(0,0,0,0.18);
      --shadow-hover: 0 16px 40px rgba(0,0,0,0.30);
      --transition: 180ms ease-out;
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--color-bg);
      color: var(--color-ink);
      line-height: 1.6;
      margin: 0;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      display: block;
    }
    button {
      border: none;
      background: none;
      cursor: pointer;
      font-family: inherit;
    }
    .container-site {
      max-width: 1440px;
      margin: 0 auto;
      padding-left: clamp(20px, 4vw, 48px);
      padding-right: clamp(20px, 4vw, 48px);
    }
    .nav-link {
      display: flex;
      align-items: center;
      height: 44px;
      padding: 0 14px;
      font-size: 14px;
      color: var(--color-secondary);
      border-radius: 8px;
      border-left: 3px solid transparent;
      transition: all var(--transition);
      white-space: nowrap;
    }
    .nav-link:hover {
      color: var(--color-ink);
      background: rgba(255,255,255,0.04);
    }
    .nav-link.active {
      color: var(--color-primary);
      background: rgba(27,158,143,0.08);
      border-left-color: var(--color-primary);
      font-weight: 500;
    }
    .accent-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 24px;
      background: var(--color-accent);
      color: #0F1419;
      font-size: 14px;
      font-weight: 600;
      border-radius: 10px;
      transition: all var(--transition);
      box-shadow: 0 4px 14px rgba(255,122,69,0.25);
      letter-spacing: 0.02em;
    }
    .accent-btn:hover {
      background: #FF9066;
      box-shadow: 0 6px 20px rgba(255,122,69,0.35);
      transform: translateY(-1px);
    }
    .accent-btn:active {
      background: #E5632B;
      transform: translateY(0);
    }
    .accent-btn:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27,158,143,0.3);
    }
    .filter-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      padding: 0 20px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-secondary);
      border: 1px solid rgba(255,255,255,0.15);
      background: transparent;
      transition: all var(--transition);
    }
    .filter-btn:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }
    .filter-btn.active {
      background: var(--color-primary);
      color: #0F1419;
      border-color: var(--color-primary);
      font-weight: 600;
    }
    .filter-btn:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27,158,143,0.3);
    }
    .movie-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--color-surface);
      box-shadow: var(--shadow-card);
      transition: all 0.2s ease-out;
    }
    .movie-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .movie-card:hover .movie-thumb img {
      transform: scale(1.03);
    }
    .movie-thumb {
      position: relative;
      aspect-ratio: 2/3;
      overflow: hidden;
      background: #101820;
    }
    .movie-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease-out;
    }
    .movie-thumb::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(15,20,25,0.35), transparent 55%);
      pointer-events: none;
    }
    .score-badge {
      position: absolute;
      top: 12px;
      right: 12px;
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(10,14,18,0.75);
      color: #FFB020;
      font-size: 12px;
      font-weight: 600;
      backdrop-filter: blur(6px);
      border: 1px solid rgba(255,255,255,0.08);
    }
    .tag-badge {
      display: inline-flex;
      align-items: center;
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 12px;
      color: var(--color-primary);
      background: rgba(27,158,143,0.1);
      border: 1px solid rgba(27,158,143,0.2);
    }
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .faq-item:first-child {
      border-top: 1px solid rgba(255,255,255,0.08);
    }
    .faq-btn {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      padding: 20px 0;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-ink);
      text-align: left;
      transition: color var(--transition);
    }
    .faq-btn:hover {
      color: var(--color-primary);
    }
    .faq-btn:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27,158,143,0.3);
      border-radius: 4px;
    }
    .faq-icon {
      font-size: 22px;
      color: var(--color-muted);
      transition: transform 0.2s ease-out;
      font-weight: 300;
      flex-shrink: 0;
      margin-left: 16px;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.2s ease-out;
    }
    .faq-item.open .faq-answer {
      max-height: 400px;
      padding-bottom: 20px;
    }
    .faq-answer-inner {
      font-size: 14px;
      color: var(--color-secondary);
      line-height: 1.8;
      padding-right: 32px;
    }
    .feature-card {
      background: var(--color-surface);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      border: 1px solid rgba(255,255,255,0.04);
      transition: all var(--transition);
    }
    .feature-card:hover {
      border-color: rgba(27,158,143,0.3);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(27,158,143,0.12);
      color: var(--color-primary);
      font-size: 20px;
      margin-bottom: 16px;
    }
    .cta-banner {
      background: linear-gradient(135deg, #1B9E8F, #0E5B52);
      border-radius: var(--radius-lg);
      position: relative;
      overflow: hidden;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      right: -80px;
      top: -80px;
      width: 280px;
      height: 280px;
      border-radius: 50%;
      background: rgba(255,255,255,0.06);
      pointer-events: none;
    }
    .cta-banner::after {
      content: '';
      position: absolute;
      left: 40%;
      bottom: -120px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(255,255,255,0.04);
      pointer-events: none;
    }
    @media (max-width: 1023px) {
      .desktop-sidebar {
        display: none;
      }
    }
    @media (min-width: 1024px) {
      .mobile-header {
        display: none;
      }
    }

/* roulang page: article */
:root {
      --color-primary: #1B9E8F;
      --color-accent: #FF7A45;
      --color-bg: #0F1419;
      --color-surface: #172027;
      --color-overlay: #1F2A33;
      --color-ink: #E8EEF1;
      --color-secondary: #9FB3BD;
      --color-muted: #667A85;
      --radius-card: 16px;
      --radius-md: 10px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.18);
      --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.30);
      --transition: all 0.2s ease-out;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--color-bg);
      color: var(--color-ink);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

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

    .container-site {
      max-width: 1440px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    @media (min-width: 768px) {
      .container-site {
        padding-left: 32px;
        padding-right: 32px;
      }
    }

    @media (min-width: 1024px) {
      .container-site {
        padding-left: 48px;
        padding-right: 48px;
      }
    }

    .nav-link {
      display: flex;
      align-items: center;
      height: 44px;
      padding: 0 14px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--color-secondary);
      position: relative;
      transition: var(--transition);
    }

    .nav-link:hover {
      background: rgba(255, 255, 255, 0.04);
      color: var(--color-ink);
    }

    .nav-link.active {
      color: var(--color-primary);
      background: rgba(27, 158, 143, 0.06);
    }

    .nav-link.active::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 3px;
      height: 20px;
      background: var(--color-primary);
      border-radius: 0 4px 4px 0;
    }

    .nav-link:focus-visible,
    .btn-primary:focus-visible,
    .btn-outline:focus-visible,
    .faq-btn:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27, 158, 143, 0.3);
    }

    .btn-primary,
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 44px;
      padding: 0 24px;
      border-radius: var(--radius-md);
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
    }

    .btn-primary {
      background: var(--color-accent);
      color: var(--color-bg);
      box-shadow: 0 4px 14px rgba(255, 122, 69, 0.25);
    }

    .btn-primary:hover {
      background: #FF9066;
      box-shadow: 0 6px 20px rgba(255, 122, 69, 0.35);
    }

    .btn-primary:active {
      background: #E5632B;
      transform: translateY(1px);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.4);
      color: var(--color-ink);
    }

    .btn-outline:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .btn-outline:active {
      background: rgba(27, 158, 143, 0.08);
    }

    .btn-text {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      font-size: 14px;
      color: var(--color-secondary);
      transition: var(--transition);
      padding: 8px 12px;
      border-radius: 8px;
    }

    .btn-text:hover {
      color: var(--color-primary);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      padding: 3px 12px;
      border-radius: 999px;
      border: 1px solid rgba(27, 158, 143, 0.4);
      color: var(--color-primary);
      font-size: 12px;
      font-weight: 500;
      background: rgba(27, 158, 143, 0.06);
    }

    .article-content {
      font-size: 16px;
      line-height: 1.9;
      color: #D6E0E5;
      word-break: break-word;
    }

    .article-content h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--color-ink);
      margin: 40px 0 20px;
      line-height: 1.4;
    }

    .article-content h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-ink);
      margin: 32px 0 16px;
      line-height: 1.4;
    }

    .article-content h4 {
      font-size: 17px;
      font-weight: 600;
      color: var(--color-ink);
      margin: 24px 0 12px;
    }

    .article-content p {
      margin-bottom: 16px;
    }

    .article-content img {
      width: 100%;
      border-radius: 12px;
      margin: 24px 0;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .article-content a {
      color: var(--color-primary);
      text-decoration: underline;
      text-underline-offset: 3px;
      transition: color 0.2s;
    }

    .article-content a:hover {
      color: var(--color-accent);
    }

    .article-content blockquote {
      border-left: 3px solid var(--color-primary);
      background: var(--color-surface);
      padding: 16px 20px;
      margin: 24px 0;
      border-radius: 0 8px 8px 0;
      color: var(--color-secondary);
      font-style: normal;
    }

    .article-content ul,
    .article-content ol {
      padding-left: 20px;
      margin: 16px 0;
      line-height: 1.8;
    }

    .article-content ul {
      list-style: disc;
    }

    .article-content ol {
      list-style: decimal;
    }

    .article-content li {
      margin-bottom: 6px;
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 24px 0;
      font-size: 14px;
    }

    .article-content th,
    .article-content td {
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 10px 12px;
      text-align: left;
    }

    .article-content th {
      background: var(--color-surface);
      color: var(--color-ink);
      font-weight: 600;
    }

    .article-content code {
      background: var(--color-surface);
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 14px;
      color: var(--color-accent);
      word-break: break-all;
    }

    .line-clamp-2 {
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease-out;
    }

    .faq-item.open .faq-answer {
      max-height: 600px;
    }

    .faq-icon {
      transition: transform 0.2s ease-out, color 0.2s ease-out;
      font-size: 22px;
      font-weight: 300;
      line-height: 1;
      color: var(--color-secondary);
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      color: var(--color-primary);
    }

    .faq-btn {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 4px;
      text-align: left;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-ink);
      transition: color 0.2s;
    }

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

    @media (max-width: 1023px) {
      .mobile-nav-item {
        display: block;
        padding: 14px 12px;
        font-size: 15px;
        font-weight: 500;
        color: var(--color-secondary);
        border-radius: 8px;
        transition: var(--transition);
      }

      .mobile-nav-item:hover {
        background: rgba(255, 255, 255, 0.04);
        color: var(--color-ink);
      }

      .mobile-nav-item.active {
        color: var(--color-primary);
        background: rgba(27, 158, 143, 0.06);
      }
    }

    @media (max-width: 640px) {
      .article-content {
        font-size: 15px;
        line-height: 1.85;
      }
      .article-content h2 {
        font-size: 21px;
      }
      .article-content h3 {
        font-size: 18px;
      }
    }

/* roulang page: category2 */
:root {
      --color-primary: #1B9E8F;
      --color-accent: #FF7A45;
      --color-bg: #0F1419;
      --color-surface: #172027;
      --color-raised: #1F2A33;
      --color-ink: #E8EEF1;
      --color-secondary: #9FB3BD;
      --color-muted: #667A85;
      --radius-card: 16px;
      --radius-btn: 10px;
      --radius-pill: 999px;
      --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.18);
      --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.30);
      --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--color-bg);
      color: var(--color-ink);
      line-height: 1.6;
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

    /* ===== 导航 ===== */
    .nav-link {
      display: flex;
      align-items: center;
      height: 44px;
      padding: 0 16px;
      font-size: 14px;
      color: var(--color-secondary);
      border-radius: 8px;
      border-left: 3px solid transparent;
      transition: all 0.2s ease-out;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: var(--color-ink);
      background: rgba(255, 255, 255, 0.04);
    }

    .nav-link.active {
      color: var(--color-primary);
      border-left-color: var(--color-primary);
      background: rgba(27, 158, 143, 0.08);
      font-weight: 600;
    }

    /* ===== 按钮 ===== */
    .btn-accent {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 24px;
      background-color: var(--color-accent);
      color: #0F1419;
      border: none;
      border-radius: var(--radius-btn);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease-out;
      box-shadow: 0 4px 14px rgba(255, 122, 69, 0.25);
      line-height: 1;
    }

    .btn-accent:hover {
      background-color: #FF9066;
      box-shadow: 0 6px 20px rgba(255, 122, 69, 0.35);
    }

    .btn-accent:active {
      background-color: #E5632B;
    }

    .btn-accent:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27, 158, 143, 0.3);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 24px;
      background: transparent;
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.4);
      border-radius: var(--radius-btn);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease-out;
      line-height: 1;
    }

    .btn-ghost:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .btn-ghost:active {
      background: rgba(27, 158, 143, 0.08);
    }

    .btn-ghost:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(27, 158, 143, 0.3);
    }

    /* ===== 卡片 ===== */
    .card-hover {
      transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    }

    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .card-hover .card-img {
      transition: transform 0.3s ease-out;
    }

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

    /* ===== 筛选胶囊 ===== */
    .filter-chip {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      padding: 0 16px;
      border-radius: var(--radius-pill);
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--color-secondary);
      font-size: 13px;
      font-weight: 500;
      transition: all 0.2s ease-out;
      cursor: pointer;
      white-space: nowrap;
    }

    .filter-chip:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .filter-chip.active {
      background: var(--color-primary);
      color: #0F1419;
      border-color: var(--color-primary);
      font-weight: 600;
    }

    /* ===== 标签 ===== */
    .tag {
      display: inline-flex;
      align-items: center;
      font-size: 11px;
      color: var(--color-primary);
      background: rgba(27, 158, 143, 0.10);
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      line-height: 1.6;
    }

    .tag-accent {
      color: var(--color-accent);
      background: rgba(255, 122, 69, 0.12);
    }

    /* ===== FAQ ===== */
    .faq-item {
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .faq-item:first-child {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      padding: 20px 0;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-ink);
      background: none;
      border: none;
      cursor: pointer;
      text-align: left;
      transition: color 0.2s ease-out;
    }

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

    .faq-icon {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--color-muted);
      transition: transform 0.2s ease, color 0.2s ease;
      flex-shrink: 0;
      line-height: 1;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      color: var(--color-primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      font-size: 14px;
      color: #B9C9D2;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      max-height: 260px;
    }

    .faq-answer-inner {
      padding: 0 0 20px;
    }

    /* ===== 滚动条 ===== */
    ::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }

    ::-webkit-scrollbar-track {
      background: transparent;
    }

    ::-webkit-scrollbar-thumb {
      background: rgba(255, 255, 255, 0.15);
      border-radius: 4px;
    }

    /* ===== 焦点可访问性 ===== */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    /* ===== 文本截断 ===== */
    .line-clamp-2 {
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }