:root {
    --bg-deep: #0d0b10;
    --bg-panel: #17131d;
    --bg-card: #201a28;
    --accent: #ff7a29;
    --accent-hover: #ff9248;
    --text-main: #f4eff7;
    --text-sub: #a89bb4;
    --border-line: #2e2638;
    --tag-bg: rgba(255, 122, 41, 0.16);
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  ul { list-style: none; }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 11, 16, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-line);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    flex-shrink: 0;
  }
  .brand img {
    height: 34px;
    width: auto;
    border-radius: 8px;
  }
  .nav-links {
    display: none;
    gap: 24px;
    font-size: 14px;
    color: var(--text-sub);
  }
  .nav-links a { transition: color 0.2s; }
  .nav-links a:hover { color: var(--accent); }
  .header-actions { display: flex; align-items: center; gap: 12px; }
  .btn-download {
    display: inline-block;
    background: var(--accent);
    color: #1a0d04;
    font-weight: 700;
    font-size: 14px;
    padding: 9px 20px;
    border-radius: 999px;
    transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
  }
  .btn-download:hover { background: var(--accent-hover); transform: translateY(-1px); }

  .hero {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px 48px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
  }
  .hero-copy h1 {
    font-size: 26px;
    line-height: 1.35;
    margin-bottom: 14px;
    font-weight: 800;
    letter-spacing: 0.5px;
  }
  .hero-copy h1 em {
    font-style: normal;
    color: var(--accent);
  }
  .hero-desc {
    color: var(--text-sub);
    font-size: 14px;
    max-width: 520px;
    margin-bottom: 22px;
  }
  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
  }
  .chip {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--tag-bg);
    color: var(--accent);
    border: 1px solid rgba(255, 122, 41, 0.3);
  }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
  .btn-ghost {
    display: inline-block;
    padding: 9px 20px;
    font-size: 14px;
    border-radius: 999px;
    border: 1px solid var(--border-line);
    color: var(--text-main);
    transition: border-color 0.2s, color 0.2s;
  }
  .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

  .hero-poster {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,0.6);
    border: 1px solid var(--border-line);
    aspect-ratio: 2 / 3;
    max-width: 340px;
    margin: 0 auto;
    width: 100%;
  }
  .hero-poster img { width: 100%; height: 100%; object-fit: cover; }
  .hero-poster::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13,11,16,0.85), transparent 45%);
  }
  .hero-poster-caption {
    position: absolute;
    bottom: 18px;
    left: 18px;
    right: 18px;
    z-index: 2;
  }
  .hero-poster-caption strong { display: block; font-size: 20px; margin-bottom: 4px; }
  .hero-poster-caption span { font-size: 13px; color: var(--text-sub); }

  section { max-width: 1200px; margin: 0 auto; padding: 44px 20px; }
  .section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
    flex-wrap: wrap;
  }
  .section-head h2 {
    font-size: 21px;
    font-weight: 700;
    letter-spacing: 0.5px;
  }
  .section-head h2 span { color: var(--accent); }
  .section-head p { color: var(--text-sub); font-size: 13px; }

  .card-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .poster-card {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.25s, border-color 0.25s;
  }
  .poster-card:hover { transform: translateY(-4px); border-color: rgba(255,122,41,0.5); }
  .poster-thumb {
    position: relative;
    aspect-ratio: 2 / 3;
    overflow: hidden;
  }
  .poster-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .badge-new {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent);
    color: #1a0d04;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 6px;
    z-index: 2;
  }
  .poster-info { padding: 12px 12px 14px; }
  .poster-info h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .poster-meta { font-size: 12px; color: var(--text-sub); margin-bottom: 8px; }
  .tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
  .tag-list span {
    font-size: 11px;
    color: var(--accent);
    background: var(--tag-bg);
    padding: 2px 8px;
    border-radius: 5px;
  }

  .category-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-line);
    border-radius: 18px;
    padding: 26px 22px;
  }
  .filter-group { margin-bottom: 20px; }
  .filter-group:last-child { margin-bottom: 0; }
  .filter-group h3 {
    font-size: 14px;
    color: var(--text-sub);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
  }
  .filter-tags { display: flex; flex-wrap: wrap; gap: 10px; }
  .filter-tags a {
    font-size: 13px;
    padding: 7px 16px;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    transition: all 0.2s;
  }
  .filter-tags a:hover { border-color: var(--accent); color: var(--accent); }

  .rank-list { display: flex; flex-direction: column; gap: 12px; }
  .rank-item {
    display: flex;
    gap: 14px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: 14px;
    padding: 12px;
  }
  .rank-num {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    min-width: 32px;
    text-align: center;
    font-style: italic;
  }
  .rank-thumb {
    width: 58px;
    height: 82px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
  }
  .rank-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .rank-body h3 { font-size: 15px; margin-bottom: 4px; }
  .rank-body p { font-size: 12.5px; color: var(--text-sub); }

  .feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .feature-big {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-line);
    min-height: 220px;
    display: flex;
    align-items: flex-end;
  }
  .feature-big img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .feature-big::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13,11,16,0.95), rgba(13,11,16,0.1));
  }
  .feature-copy { position: relative; z-index: 2; padding: 22px; }
  .feature-copy h3 { font-size: 18px; margin-bottom: 8px; }
  .feature-copy p { font-size: 13.5px; color: var(--text-sub); }

  .gallery-scroll {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
  }
  .gallery-scroll::-webkit-scrollbar { height: 4px; }
  .gallery-scroll::-webkit-scrollbar-thumb { background: var(--border-line); border-radius: 4px; }
  .gallery-item {
    flex: 0 0 140px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-line);
    aspect-ratio: 2 / 3;
  }
  .gallery-item img { width: 100%; height: 100%; object-fit: cover; }

  .faq-list { display: flex; flex-direction: column; gap: 14px; }
  .faq-item {
    background: var(--bg-panel);
    border: 1px solid var(--border-line);
    border-radius: 12px;
    padding: 16px 18px;
  }
  .faq-item h3 { font-size: 15px; margin-bottom: 8px; }
  .faq-item p { font-size: 13.5px; color: var(--text-sub); }

  .steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    counter-reset: step;
  }
  .step-item {
    background: var(--bg-card);
    border: 1px solid var(--border-line);
    border-radius: 14px;
    padding: 18px;
    display: flex;
    gap: 14px;
  }
  .step-item::before {
    counter-increment: step;
    content: counter(step);
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--accent);
    color: #1a0d04;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }
  .step-item h3 { font-size: 15px; margin-bottom: 4px; }
  .step-item p { font-size: 13px; color: var(--text-sub); }

  .cta-band {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 50px;
  }
  .cta-inner {
    background: linear-gradient(120deg, #2a1610, #1c1226);
    border: 1px solid rgba(255,122,41,0.3);
    border-radius: 20px;
    padding: 34px 24px;
    text-align: center;
  }
  .cta-inner h2 { font-size: 21px; margin-bottom: 10px; }
  .cta-inner p { color: var(--text-sub); font-size: 14px; margin-bottom: 22px; }

  .site-footer {
    border-top: 1px solid var(--border-line);
    padding: 26px 20px 34px;
    text-align: center;
    color: #6b6175;
    font-size: 12px;
  }
  .footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin-bottom: 14px;
  }
  .footer-links a { color: #8c8098; font-size: 12.5px; }
  .footer-links a:hover { color: var(--accent); }
  .footer-links span { color: #8c8098; font-size: 12.5px; }
  .site-footer p { margin-bottom: 6px; line-height: 1.8; }
  .site-footer a[href*="beian"] { color: #6b6175; }
  .site-footer time { color: #6b6175; }

  @media (min-width: 768px) {
    .hero { grid-template-columns: 1.15fr 0.85fr; padding: 56px 24px 64px; }
    .hero-copy h1 { font-size: 34px; }
    .card-row { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .rank-list { display: grid; grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1.2fr 1fr; align-items: stretch; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .gallery-item { flex: 0 0 170px; }
  }

  @media (min-width: 1024px) {
    .nav-links { display: flex; }
    .hero-copy h1 { font-size: 42px; }
    .card-row { grid-template-columns: repeat(4, 1fr); }
    .rank-list { grid-template-columns: repeat(3, 1fr); }
    .steps { grid-template-columns: repeat(4, 1fr); }
    section { padding: 60px 24px; }
  }