:root {
      --main-color: #2563eb;
      --accent-color: #06b6d4;
      --bg-color: #f4f8ff;
      --text-color: #0f1e3d;
      --light-glow: rgba(37, 99, 235, 0.15);
    }

    * { box-sizing: border-box; }

    body {
      font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-color);
      color: var(--text-color);
      margin: 0;
      padding: 0;
      line-height: 1.6;
      font-weight: 400;
    }

    h1, h2, h3, .display-1, .display-2, .display-3, .display-4 {
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .navbar-xdm {
      background: rgba(244, 248, 255, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(37, 99, 235, 0.2);
      transition: background 0.3s, box-shadow 0.3s;
    }

    .navbar-xdm.scrolled {
      background: rgba(244, 248, 255, 0.98);
      box-shadow: 0 10px 30px -10px var(--light-glow);
    }

    .navbar-brand {
      font-weight: 900;
      font-size: 1.8rem;
      color: var(--main-color);
      letter-spacing: -0.03em;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .navbar-brand i {
      color: var(--accent-color);
      font-size: 2rem;
    }

    .nav-link {
      font-weight: 600;
      color: var(--text-color);
      margin: 0 0.5rem;
      transition: color 0.2s;
    }

    .nav-link:hover {
      color: var(--main-color);
    }

    .btn-main {
      background: linear-gradient(135deg, var(--main-color), var(--accent-color));
      border: none;
      font-weight: 700;
      color: white;
      padding: 0.75rem 1.8rem;
      border-radius: 40px;
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(6, 182, 212, 0.3);
      color: #fff;
    }

    .btn-outline-main {
      background: transparent;
      border: 2px solid var(--main-color);
      color: var(--main-color);
      font-weight: 700;
      padding: 0.7rem 1.8rem;
      border-radius: 40px;
      transition: background 0.2s, color 0.2s;
    }

    .btn-outline-main:hover {
      background: var(--main-color);
      color: #fff;
    }

    .hero-section {
      padding: 4rem 0 2.5rem;
    }

    .hero-title {
      font-size: clamp(3rem, 8vw, 4.5rem);
      font-weight: 900;
      line-height: 1.1;
      background: linear-gradient(120deg, var(--main-color), var(--accent-color));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      text-shadow: 0 10px 30px rgba(37,99,235,0.15);
    }

    .hero-sub {
      font-size: 1.2rem;
      font-weight: 400;
      color: #334155;
      max-width: 700px;
      margin-top: 1.2rem;
    }

    .section-tag {
      font-weight: 700;
      color: var(--main-color);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      font-size: 0.85rem;
    }

    .poster-card {
      background: white;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 6px 18px rgba(15, 30, 61, 0.08);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      cursor: pointer;
      position: relative;
      border: 1px solid rgba(255,255,255,0.5);
    }

    .poster-card:hover {
      transform: translateY(-8px) scale(1.02);
      box-shadow: 0 25px 40px -12px rgba(37, 99, 235, 0.35);
    }

    .poster-img-wrap {
      position: relative;
      background: #dfe8f3;
      aspect-ratio: 2 / 3;
      overflow: hidden;
    }

    .poster-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }

    .poster-card:hover .poster-img-wrap img {
      transform: scale(1.05);
    }

    .quality-badge {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(15, 30, 61, 0.7);
      backdrop-filter: blur(4px);
      color: white;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 0.2rem 0.6rem;
      border-radius: 20px;
      letter-spacing: 0.05em;
      border: 1px solid rgba(255,255,255,0.3);
      z-index: 3;
    }

    .rating-star {
      color: #f59e0b;
      font-size: 0.85rem;
      margin-right: 4px;
    }

    .poster-info {
      padding: 0.8rem 1rem 1rem;
    }

    .poster-info h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 0.25rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .poster-meta {
      font-size: 0.75rem;
      color: #64748b;
      display: flex;
      justify-content: space-between;
    }

    .table-comparison {
      background: white;
      border-radius: 20px;
      box-shadow: 0 6px 20px rgba(15,30,61,0.05);
      padding: 1.5rem;
    }

    .table-comparison table {
      margin: 0;
      width: 100%;
      border-collapse: separate;
      border-spacing: 0 8px;
    }

    .table-comparison th {
      font-weight: 700;
      color: var(--text-color);
      background: var(--bg-color);
      border-radius: 12px;
      padding: 0.75rem 1rem;
    }

    .table-comparison td {
      background: #f8faff;
      border-radius: 12px;
      padding: 0.75rem 1rem;
      font-weight: 500;
    }

    .feature-list {
      counter-reset: my-counter;
      list-style: none;
      padding-left: 0;
    }

    .feature-list li {
      counter-increment: my-counter;
      margin-bottom: 1rem;
      padding-left: 2.5rem;
      position: relative;
      font-weight: 500;
    }

    .feature-list li::before {
      content: counter(my-counter);
      position: absolute;
      left: 0;
      top: 0;
      width: 1.8rem;
      height: 1.8rem;
      background: linear-gradient(145deg, var(--main-color), var(--accent-color));
      color: white;
      border-radius: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .modal-xdm {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 1050;
      background-color: rgba(15, 30, 61, 0.6);
      backdrop-filter: blur(8px);
      overflow-y: auto;
    }

    .modal-content-xdm {
      background: transparent;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100%;
      padding: 2rem;
    }

    .modal-card {
      max-width: 800px;
      background: var(--bg-color);
      border-radius: 32px;
      box-shadow: 0 40px 60px -15px rgba(0,0,0,0.5);
      overflow: hidden;
      position: relative;
      width: 100%;
      animation: modalpop 0.25s ease;
    }

    @keyframes modalpop {
      from { transform: scale(0.95); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }

    .modal-close {
      position: absolute;
      top: 16px;
      right: 16px;
      background: rgba(15,30,61,0.7);
      border: none;
      color: white;
      width: 36px;
      height: 36px;
      border-radius: 30px;
      font-size: 1.2rem;
      z-index: 5;
      transition: background 0.2s;
    }

    .modal-close:hover {
      background: var(--main-color);
    }

    .modal-body-xdm {
      display: flex;
      flex-wrap: wrap;
      gap: 2rem;
      padding: 2rem;
    }

    .modal-poster {
      flex: 0 0 200px;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }

    .modal-poster img {
      width: 100%;
      display: block;
    }

    .modal-details {
      flex: 1;
      min-width: 200px;
    }

    .modal-details h2 {
      font-weight: 800;
      font-size: 2rem;
      margin-bottom: 0.5rem;
    }

    .modal-meta {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 1.2rem;
    }

    .badge-accent {
      background: var(--accent-color);
      color: #fff;
      padding: 0.2rem 0.8rem;
      border-radius: 30px;
      font-size: 0.8rem;
      font-weight: 600;
    }

    .badge-main {
      background: var(--main-color);
      color: #fff;
    }

    .friend-links {
      background: white;
      padding: 2.5rem 0;
      border-top: 1px solid rgba(37,99,235,0.1);
    }

    footer {
      background: #e8effc;
      padding: 2.5rem 0 1.5rem;
      color: #1e293b;
    }

    footer a {
      color: var(--main-color);
      text-decoration: none;
      font-weight: 500;
    }

    .lazy-load {
      background: #e2e8f0;
      opacity: 0;
      transition: opacity 0.3s;
    }

    .lazy-load.loaded {
      opacity: 1;
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.5rem;
      }
      .modal-poster {
        flex: 0 0 120px;
      }
    }

/* --- 子页面追加 --- */
/* 确保 Bootstrap 卡片等组件与本站配色融合 */
    .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
      background: var(--bg-color);
      color: var(--text-color);
      border-color: var(--light-glow);
    }
.table {
      --bs-table-bg: transparent;
      --bs-table-color: var(--text-color);
      --bs-table-border-color: var(--light-glow);
      color: var(--text-color);
    }
.list-group-item {
      background: var(--bg-color);
      color: var(--text-color);
      border-color: var(--light-glow);
    }
.accordion-item, .accordion-button {
      background: var(--bg-color);
      color: var(--text-color);
      border-color: var(--light-glow);
    }
.accordion-button:not(.collapsed) {
      background: var(--light-glow);
      color: var(--main-color);
    }
.form-control, .form-select {
      background: var(--bg-color);
      color: var(--text-color);
      border-color: var(--light-glow);
    }
.form-control::placeholder {
      color: rgba(15, 30, 61, 0.5);
    }
/* 覆盖导航激活态 */
    .navbar-xdm .nav-link.active {
      color: var(--accent-color);
      font-weight: 600;
    }
/* 关于页专用小点缀 */
    .about-hero {
      background: linear-gradient(145deg, var(--light-glow), transparent);
      border-bottom: 1px solid rgba(37,99,235,.15);
    }
.section-title-xdm {
      position: relative;
      display: inline-block;
      margin-bottom: 1.8rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }
.section-title-xdm::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 42px;
      height: 3px;
      background: var(--accent-color);
      border-radius: 3px;
    }
.feature-card {
      background: var(--bg-color);
      border: 1px solid var(--light-glow);
      border-radius: 16px;
      padding: 1.5rem 1.25rem;
      transition: transform .2s ease, box-shadow .2s ease;
      height: 100%;
    }
.feature-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -12px var(--light-glow);
    }
.feature-icon {
      font-size: 1.8rem;
      color: var(--main-color);
      margin-bottom: .8rem;
    }
.value-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--main-color);
      line-height: 1;
    }
.about-quote {
      border-left: 4px solid var(--accent-color);
      padding-left: 1.2rem;
      font-style: italic;
      color: var(--text-color);
      opacity: .85;
    }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .disclaimer-hero {
            padding: 80px 0 40px;
            background: linear-gradient(135deg, var(--light-glow), transparent);
        }
.disclaimer-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 40px 20px 80px;
        }
.disclaimer-section {
            margin-bottom: 50px;
            padding: 35px;
            border-radius: 16px;
            background: rgba(255,255,255,.7);
            border: 1px solid var(--light-glow);
            box-shadow: 0 8px 30px rgba(37,99,235,.06);
        }
.disclaimer-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--main-color);
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--light-glow);
            display: flex;
            align-items: center;
            gap: 10px;
        }
.disclaimer-section h2 i {
            color: var(--accent-color);
        }
.disclaimer-section p, .disclaimer-section li {
            color: var(--text-color);
            line-height: 1.9;
            font-size: .95rem;
        }
.disclaimer-section ul {
            padding-left: 20px;
        }
.disclaimer-section li {
            margin-bottom: 8px;
        }
.disclaimer-badge {
            display: inline-block;
            background: var(--light-glow);
            color: var(--main-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: .85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
.highlight-box {
            background: var(--light-glow);
            border-left: 4px solid var(--main-color);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
.highlight-box p {
            margin: 0;
            font-weight: 500;
        }
.disclaimer-section {
                padding: 24px 18px;
            }
.disclaimer-section h2 {
                font-size: 1.3rem;
            }

/* --- 子页面追加 --- */
/* 隐私政策页面专属样式 */
        .privacy-hero {
            background: linear-gradient(135deg, var(--bg-color) 0%, rgba(37, 99, 235, 0.08) 100%);
            padding: 80px 0 60px;
            border-bottom: 1px solid rgba(37, 99, 235, 0.1);
        }
.privacy-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-color);
            margin-bottom: 16px;
        }
.privacy-hero h1 .highlight {
            color: var(--main-color);
            position: relative;
        }
.privacy-hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--main-color), var(--accent-color));
            border-radius: 2px;
        }
.privacy-hero p {
            color: rgba(15, 30, 61, 0.7);
            font-size: 1.1rem;
            max-width: 700px;
        }
.privacy-section {
            padding: 50px 0;
            border-bottom: 1px solid rgba(37, 99, 235, 0.08);
        }
.privacy-section:last-child {
            border-bottom: none;
        }
.privacy-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-color);
            margin-bottom: 20px;
            position: relative;
            padding-left: 18px;
        }
.privacy-section h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 6px;
            height: 24px;
            background: linear-gradient(180deg, var(--main-color), var(--accent-color));
            border-radius: 3px;
        }
.privacy-section h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--main-color);
            margin-bottom: 12px;
            margin-top: 24px;
        }
.privacy-section p {
            color: rgba(15, 30, 61, 0.75);
            line-height: 1.8;
            margin-bottom: 16px;
        }
.privacy-section ul {
            padding-left: 20px;
            margin-bottom: 16px;
        }
.privacy-section ul li {
            color: rgba(15, 30, 61, 0.75);
            line-height: 1.8;
            margin-bottom: 6px;
        }
.privacy-section ul li strong {
            color: var(--text-color);
        }
.privacy-highlight-box {
            background: rgba(37, 99, 235, 0.05);
            border: 1px solid rgba(37, 99, 235, 0.15);
            border-radius: 12px;
            padding: 24px 28px;
            margin: 24px 0;
        }
.privacy-highlight-box p {
            margin-bottom: 8px;
        }
.privacy-highlight-box p:last-child {
            margin-bottom: 0;
        }
.privacy-highlight-box .icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(37, 99, 235, 0.1);
            border-radius: 50%;
            margin-right: 12px;
            color: var(--main-color);
            font-size: 0.9rem;
        }
.privacy-updated {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(6, 182, 212, 0.1);
            color: var(--accent-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            margin-top: 12px;
        }
.privacy-updated i {
            font-size: 0.8rem;
        }
.table-of-content {
            background: var(--bg-color);
            border-radius: 12px;
            padding: 24px 28px;
            margin: 30px 0;
            border: 1px solid rgba(37, 99, 235, 0.1);
        }
.table-of-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-color);
            margin-bottom: 16px;
        }
.table-of-content ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
.table-of-content ul li {
            padding: 6px 0;
            color: rgba(15, 30, 61, 0.7);
        }
.table-of-content ul li a {
            color: var(--main-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }
.table-of-content ul li a:hover {
            color: var(--accent-color);
            padding-left: 4px;
        }
.table-of-content ul li a i {
            font-size: 0.8rem;
            margin-right: 8px;
            color: var(--accent-color);
        }
.contact-info {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-top: 20px;
            padding: 20px 24px;
            background: rgba(6, 182, 212, 0.05);
            border: 1px solid rgba(6, 182, 212, 0.15);
            border-radius: 12px;
        }
.contact-info i {
            font-size: 1.4rem;
            color: var(--accent-color);
            margin-top: 4px;
        }
.contact-info div p {
            margin-bottom: 4px;
        }
.contact-info div p:first-child {
            font-weight: 600;
            color: var(--text-color);
        }
.privacy-hero {
                padding: 50px 0 40px;
            }
.privacy-hero h1 {
                font-size: 1.8rem;
            }
.privacy-section h2 {
                font-size: 1.3rem;
            }