:root {
      --bg-dark: #0c0a1a;
      --accent: #06b6d4;
      --accent-pink: #ec4899;
      --text-light: #e0f2fe;
      --card-bg: rgba(12, 10, 26, 0.75);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
    }
    * { margin:0; padding:0; box-sizing:border-box; }
    body {
      background-color: var(--bg-dark);
      color: var(--text-light);
      font-family: 'Noto Sans SC', 'Inter', system-ui, -apple-system, sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
    }
    h1,h2,h3,h4,.font-song {
      font-family: 'Noto Serif SC', 'Times New Roman', serif;
      font-weight: 700;
      letter-spacing: 0.02em;
    }
    a { color: var(--text-light); text-decoration: none; transition: 0.2s; }
    a:hover { color: var(--accent); }

    /* 导航胶囊 */
    .navbar-custom {
      background: rgba(12,10,26,0.75);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(6,182,212,0.2);
      padding: 12px 0;
      position: sticky;
      top: 0;
      z-index: 1000;
      border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
    .brand-logo {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.8rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--accent), var(--accent-pink));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .nav-pills-custom .nav-link {
      color: var(--text-light);
      font-weight: 500;
      border-radius: 50rem;
      padding: 8px 20px;
      margin: 0 4px;
      background: transparent;
      transition: all 0.2s;
      border: 1px solid transparent;
    }
    .nav-pills-custom .nav-link:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(6,182,212,0.1);
    }
    .navbar-toggler {
      border: 1px solid var(--accent);
      color: var(--accent);
      border-radius: 50rem;
      padding: 6px 14px;
    }

    /* Hero 统计区 */
    .hero-stats {
      padding: 40px 0 10px;
      text-align: center;
    }
    .stat-number {
      font-family: 'Noto Serif SC', serif;
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--accent);
      line-height: 1;
      text-shadow: 0 0 20px rgba(6,182,212,0.5);
    }
    .stat-label {
      font-size: 1rem;
      color: var(--text-light);
      opacity: 0.8;
      letter-spacing: 2px;
    }

    /* 通用区块 */
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      border-left: 8px solid var(--accent-pink);
      padding-left: 20px;
      margin: 50px 0 25px;
      text-shadow: 0 2px 8px rgba(236,72,153,0.3);
    }
    .section-sub { color: var(--accent); letter-spacing: 2px; font-weight: 500; }

    /* 卡片样式 */
    .movie-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(6,182,212,0.15);
      backdrop-filter: blur(8px);
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s;
      height: 100%;
      display: flex;
      flex-direction: column;
      position: relative;
      transform-style: preserve-3d;
      cursor: pointer;
    }
    .movie-card:hover {
      transform: scale(1.03);
      border-color: var(--accent-pink);
      box-shadow: 0 20px 30px -12px rgba(236,72,153,0.25);
    }
    .movie-card img {
      width: 100%;
      aspect-ratio: 2 / 3;
      object-fit: cover;
      display: block;
      background: #1a162e;
    }
    .card-info {
      padding: 15px;
      flex: 1;
    }
    .card-info h5 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-light);
      font-family: 'Noto Serif SC', serif;
    }
    .card-meta {
      font-size: 0.85rem;
      color: var(--accent);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .badge-rating {
      background: rgba(236,72,153,0.2);
      color: var(--accent-pink);
      padding: 2px 10px;
      border-radius: 50rem;
      font-weight: 600;
    }

    /* 榜单金银铜 */
    .rank-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      background: #3a3550;
      color: #fff;
    }
    .rank-1 { background: linear-gradient(145deg, #FFD700, #FFA500); }
    .rank-2 { background: linear-gradient(145deg, #C0C0C0, #A0A0A0); }
    .rank-3 { background: linear-gradient(145deg, #CD7F32, #B87333); }

    /* 分类胶囊 */
    .cat-pill {
      display: inline-block;
      background: rgba(6,182,212,0.1);
      border: 1px solid rgba(6,182,212,0.4);
      color: var(--accent);
      border-radius: 50rem;
      padding: 6px 18px;
      margin: 6px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.2s;
      cursor: default;
    }
    .cat-pill:hover {
      background: var(--accent);
      color: #0c0a1a;
      border-color: var(--accent);
    }

    /* 手风琴 */
    .accordion-item {
      background: transparent;
      border: 1px solid rgba(6,182,212,0.15);
      border-radius: var(--radius-sm) !important;
      margin-bottom: 10px;
    }
    .accordion-button {
      background: rgba(6,182,212,0.05);
      color: var(--text-light);
      border-radius: var(--radius-sm) !important;
      font-family: 'Noto Sans SC', sans-serif;
      font-weight: 500;
    }
    .accordion-button:not(.collapsed) {
      background: rgba(236,72,153,0.1);
      color: var(--accent-pink);
    }
    .accordion-body { background: rgba(12,10,26,0.6); border-radius: 0 0 var(--radius-sm) var(--radius-sm); }

    /* 翻转卡片详情（弹窗） */
    .flip-modal {
      position: fixed;
      top:0; left:0; width:100%; height:100%;
      background: rgba(5,0,15,0.8);
      backdrop-filter: blur(8px);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 2000;
    }
    .flip-card-inner {
      background: #1b1730;
      max-width: 420px;
      width: 90%;
      border-radius: var(--radius-lg);
      border: 1px solid var(--accent);
      padding: 25px;
      box-shadow: 0 30px 50px rgba(0,0,0,0.6);
      transform: rotateY(10deg) scale(0.9);
      transition: transform 0.3s;
    }
    .flip-card-inner.show {
      transform: rotateY(0) scale(1);
    }
    .flip-modal .close-modal {
      float: right;
      font-size: 2rem;
      color: var(--accent-pink);
      cursor: pointer;
      line-height: 1;
    }

    /* 页脚 */
    .footer-links a {
      margin-right: 18px;
      color: rgba(224,242,254,0.7);
    }
    .footer-links a:hover { color: var(--accent); }

    /* 滚动淡入 */
    .fade-up {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 占位 */
    .friend-link-placeholder {
      background: rgba(6,182,212,0.03);
      padding: 15px 20px;
      border-radius: 50rem;
      border: 1px dashed var(--accent);
      color: var(--accent);
      text-align: center;
    }

    /* 随机推荐组件 */
    .random-reco-box {
      background: linear-gradient(145deg, rgba(6,182,212,0.1), rgba(236,72,153,0.1));
      border-radius: var(--radius-lg);
      padding: 25px;
      border: 1px solid rgba(6,182,212,0.2);
    }

/* --- 子页面追加 --- */
.about-hero {
            padding: 100px 0 60px;
            text-align: center;
        }
.about-section {
            padding: 50px 0;
        }
.about-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 35px;
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(6, 182, 212, 0.15);
        }
.about-card h3 {
            color: var(--accent);
            font-weight: 700;
            font-size: 1.5rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.about-card h3 i {
            font-size: 1.3rem;
        }
.about-card p {
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 15px;
            opacity: 0.9;
        }
.value-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
.value-list li {
            padding: 12px 0;
            color: var(--text-light);
            border-bottom: 1px solid rgba(255,255,255,0.1);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            line-height: 1.6;
        }
.value-list li:last-child {
            border-bottom: none;
        }
.value-list li i {
            color: var(--accent-pink);
            font-size: 1.1rem;
            margin-top: 4px;
            min-width: 20px;
        }
.timeline {
            position: relative;
            padding-left: 30px;
        }
.timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--accent-pink));
        }
.timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
        }
.timeline-item h4 {
            color: var(--text-light);
            font-weight: 600;
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
.timeline-item p {
            color: var(--text-light);
            opacity: 0.85;
            line-height: 1.6;
        }
.stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
.stat-box {
            text-align: center;
            padding: 25px 15px;
            background: rgba(6, 182, 212, 0.08);
            border-radius: var(--radius-md);
            border: 1px solid rgba(6, 182, 212, 0.2);
        }
.stat-box .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            margin-bottom: 5px;
        }
.stat-box .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            opacity: 0.8;
        }
.tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
.tech-tag {
            padding: 6px 16px;
            background: rgba(236, 72, 153, 0.1);
            border: 1px solid rgba(236, 72, 153, 0.3);
            border-radius: 20px;
            color: var(--accent-pink);
            font-size: 0.9rem;
            font-weight: 500;
        }
.contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
.contact-item {
            padding: 20px;
            background: rgba(12, 10, 26, 0.5);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.1);
            text-align: center;
        }
.contact-item i {
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
.contact-item p {
            margin: 0;
            color: var(--text-light);
            font-size: 0.95rem;
        }
.about-hero {
                padding: 80px 0 40px;
            }
.about-card {
                padding: 25px;
            }
.about-card h3 {
                font-size: 1.2rem;
            }
.stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .disclaimer-hero {
            padding: 80px 0 40px;
            position: relative;
        }
.disclaimer-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-pink) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
        }
.disclaimer-hero .lead {
            color: var(--text-light);
            opacity: 0.8;
            max-width: 800px;
            margin: 0 auto;
        }
.disclaimer-section {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 40px;
            margin-bottom: 30px;
            border: 1px solid rgba(6, 182, 212, 0.15);
            backdrop-filter: blur(10px);
        }
.disclaimer-section h2 {
            color: var(--accent);
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid rgba(6, 182, 212, 0.2);
        }
.disclaimer-section h3 {
            color: var(--text-light);
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 25px;
            margin-bottom: 15px;
        }
.disclaimer-section p {
            color: var(--text-light);
            opacity: 0.85;
            line-height: 1.8;
            margin-bottom: 15px;
        }
.disclaimer-section ul, .disclaimer-section ol {
            color: var(--text-light);
            opacity: 0.85;
            padding-left: 20px;
            margin-bottom: 15px;
        }
.disclaimer-section li {
            margin-bottom: 8px;
            line-height: 1.7;
        }
.highlight-box {
            background: rgba(6, 182, 212, 0.08);
            border-left: 4px solid var(--accent);
            padding: 15px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
        }
.highlight-box.pink {
            background: rgba(236, 72, 153, 0.08);
            border-left-color: var(--accent-pink);
        }
.update-date {
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 500;
            margin-top: 30px;
            text-align: right;
        }
.disclaimer-hero h1 {
                font-size: 2rem;
            }
.disclaimer-section {
                padding: 25px;
            }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }