:root {
      --main: #db2777;
      --accent: #f43f5e;
      --bg: #fff1f5;
      --ink: #500724;
      --border-color: #db2777;
      --soft-line: #f0c6d4;
    }

    * {
      box-sizing: border-box;
    }

    body {
      background-color: var(--bg);
      color: var(--ink);
      font-family: 'Inter', '思源黑体', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      margin: 0;
      overflow-x: hidden;
    }

    h1, h2, h3, .serif-title {
      font-family: 'Inter', '思源宋体', 'Noto Serif SC', Georgia, 'Times New Roman', serif;
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    /* 无阴影纯描边基调 */
    .card, .navbar, .side-panel, .step-item, .faq-item, .cta-box {
      box-shadow: none !important;
      border: 1px solid var(--border-color);
    }

    .navbar {
      border-left: none;
      border-right: none;
      border-top: none;
      border-radius: 0;
      background: var(--bg) !important;
      padding-top: 0.8rem;
      padding-bottom: 0.8rem;
    }

    .navbar-brand {
      font-weight: 800;
      font-size: 1.8rem;
      color: var(--main) !important;
      letter-spacing: -0.03em;
      display: flex;
      align-items: center;
    }

    .navbar-brand i {
      margin-right: 0.4rem;
      font-size: 1.6rem;
    }

    .nav-link {
      color: var(--ink) !important;
      font-weight: 500;
      margin-left: 0.8rem;
      margin-right: 0.8rem;
      border-bottom: 2px solid transparent;
      transition: 0.2s;
    }

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

    /* 左侧固定侧栏 */
    .side-panel {
      background: var(--bg);
      padding: 1.8rem 1.2rem;
      height: 100vh;
      position: sticky;
      top: 0;
      border-top: none;
      border-bottom: none;
      border-left: none;
    }

    .side-panel .side-heading {
      font-weight: 600;
      margin-bottom: 2rem;
      font-size: 1.1rem;
      color: var(--main);
    }

    .side-panel a {
      display: block;
      padding: 0.7rem 0.3rem;
      color: var(--ink);
      text-decoration: none;
      font-weight: 500;
      border-bottom: 1px solid var(--soft-line);
      transition: 0.2s;
    }

    .side-panel a:hover {
      color: var(--main);
      padding-left: 0.8rem;
    }

    /* 瀑布流卡片网格 */
    .masonry-grid {
      column-count: 3;
      column-gap: 1.5rem;
      margin-top: 2rem;
    }

    .masonry-card {
      break-inside: avoid;
      margin-bottom: 1.5rem;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 0;
      overflow: hidden;
    }

    .masonry-card .card-img-wrapper {
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
      background: #fbd9e6;
    }

    .masonry-card img {
      width: 100%;
      display: block;
      transition: transform 0.35s ease;
    }

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

    .masonry-card .card-body {
      padding: 1.2rem;
      background: var(--bg);
    }

    .masonry-card .card-title {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--main);
    }

    /* 图片hover文字渐显遮罩 */
    .img-overlay {
      position: relative;
    }

    .img-overlay .overlay-text {
      position: absolute;
      inset: 0;
      background: rgba(219, 39, 119, 0.55);
      display: flex;
      align-items: flex-end;
      padding: 1rem;
      opacity: 0;
      transition: opacity 0.3s;
      color: white;
      font-weight: 600;
      font-size: 1rem;
      backdrop-filter: blur(1px);
    }

    .img-overlay:hover .overlay-text {
      opacity: 1;
    }

    /* 超大标题 */
    .hero-title {
      font-size: calc(3rem + 1.2vw);
      font-weight: 900;
      line-height: 1.05;
      color: var(--ink);
      margin-bottom: 1.2rem;
    }

    .hero-sub {
      font-size: 1.3rem;
      font-weight: 400;
      color: var(--ink);
      opacity: 0.8;
      max-width: 600px;
    }

    .btn-primary-custom {
      background: var(--main);
      border: 2px solid var(--main);
      color: white;
      padding: 0.75rem 2.2rem;
      font-weight: 600;
      border-radius: 0;
      transition: 0.2s;
    }

    .btn-outline-custom {
      background: transparent;
      border: 2px solid var(--main);
      color: var(--main);
      padding: 0.75rem 2.2rem;
      font-weight: 600;
      border-radius: 0;
    }

    .btn-outline-custom:hover {
      background: var(--main);
      color: white;
    }

    .btn-primary-custom:hover {
      background: var(--accent);
      border-color: var(--accent);
    }

    /* 区块通用 */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--ink);
      border-left: 8px solid var(--main);
      padding-left: 1rem;
      margin-bottom: 2rem;
    }

    /* 对比表格 */
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      border: 2px solid var(--main);
    }

    .compare-table th, .compare-table td {
      border: 1px solid var(--main);
      padding: 1rem 1.2rem;
      background: var(--bg);
    }

    .compare-table th {
      background: var(--main);
      color: white;
      font-weight: 600;
    }

    .compare-table tr:last-child td {
      border-bottom: 1px solid var(--main);
    }

    /* 步骤条 */
    .step-item {
      border: 1px solid var(--main);
      padding: 1.2rem;
      text-align: left;
      background: var(--bg);
      position: relative;
    }

    .step-number {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--main);
      line-height: 1;
      margin-bottom: 0.5rem;
    }

    /* FAQ */
    .faq-item {
      border: 1px solid var(--border-color);
      padding: 1.2rem 1.5rem;
      margin-bottom: 1rem;
      background: var(--bg);
    }

    /* CTA */
    .cta-box {
      background: var(--main);
      color: white;
      border: 2px solid var(--main);
      padding: 3rem 2rem;
    }

    .cta-box h2 {
      color: white;
    }

    /* 回到顶部 */
    #back-to-top {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      background: var(--main);
      color: white;
      width: 45px;
      height: 45px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid white;
      font-size: 1.4rem;
      opacity: 0;
      visibility: hidden;
      transition: 0.3s;
      z-index: 999;
      cursor: pointer;
    }

    #back-to-top.show {
      opacity: 1;
      visibility: visible;
    }

    /* 数字滚动 */
    .stat-number {
      font-weight: 800;
      font-size: 2.5rem;
      color: var(--main);
      line-height: 1;
    }

    footer {
      border-top: 2px solid var(--main);
      background: var(--bg);
      padding: 2rem 0;
      color: var(--ink);
    }

    .footer-links a {
      color: var(--main);
      text-decoration: none;
      margin: 0 0.5rem;
    }

    .friend-links {
      border: 1px solid var(--border-color);
      padding: 1rem;
      margin-top: 2rem;
      background: var(--bg);
    }

    /* 响应式 */
    @media (max-width: 992px) {
      .side-panel {
        position: relative !important;
        height: auto;
        border-left: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
      }
      .masonry-grid {
        column-count: 2;
      }
    }
    @media (max-width: 576px) {
      .masonry-grid {
        column-count: 1;
      }
      .hero-title {
        font-size: 2.8rem;
      }
    }

/* --- 子页面追加 --- */
.guide-hero {
            background: linear-gradient(135deg, var(--bg) 0%, #fdd5e3 100%);
            padding: 4rem 0 3rem;
            border-bottom: 2px solid var(--soft-line);
        }
.guide-hero h1 {
            color: var(--ink);
            font-weight: 900;
            font-size: 2.6rem;
            margin-bottom: 1rem;
        }
.guide-hero p {
            color: #8a2d56;
            font-size: 1.1rem;
            max-width: 640px;
        }
.guide-toc {
            background: var(--bg);
            border: 1px solid var(--soft-line);
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
        }
.guide-toc a {
            color: var(--main);
            text-decoration: none;
            font-weight: 600;
            transition: color .2s;
        }
.guide-toc a:hover {
            color: var(--accent);
        }
.guide-section {
            background: #fff;
            border: 1px solid var(--soft-line);
            border-radius: 20px;
            padding: 2.5rem 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 20px rgba(219, 39, 119, .06);
        }
.guide-section h2 {
            color: var(--main);
            font-weight: 800;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            border-left: 5px solid var(--accent);
            padding-left: 1rem;
        }
.guide-section h3 {
            color: var(--ink);
            font-weight: 700;
            font-size: 1.25rem;
            margin: 1.5rem 0 .8rem;
        }
.guide-section p, .guide-section li {
            color: #6d1a3c;
            line-height: 1.8;
        }
.guide-section ul {
            padding-left: 1.5rem;
        }
.guide-section li {
            margin-bottom: .4rem;
        }
.tip-box {
            background: var(--bg);
            border-left: 4px solid var(--main);
            padding: 1rem 1.2rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
.tip-box strong {
            color: var(--main);
        }
.device-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
.device-item {
            background: var(--bg);
            border-radius: 14px;
            padding: 1.2rem;
            border: 1px solid var(--soft-line);
            transition: transform .2s, box-shadow .2s;
        }
.device-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 6px 18px rgba(219, 39, 119, .12);
        }
.device-item i {
            font-size: 1.8rem;
            color: var(--main);
            margin-bottom: .6rem;
        }
.device-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: .4rem;
        }
.device-item p {
            font-size: .9rem;
            color: #8a2d56;
            margin: 0;
        }
.step-content {
            flex: 1;
        }
.step-content h4 {
            color: var(--ink);
            font-weight: 700;
            margin-bottom: .4rem;
        }
.step-content p {
            margin: 0;
        }
.guide-hero h1 {
                font-size: 2rem;
            }
.guide-section {
                padding: 1.8rem 1.2rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式——分类页特有 */
        .category-hero {
            background: linear-gradient(135deg, var(--bg) 0%, #fde3ec 100%);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--soft-line);
        }
.category-section {
            margin-bottom: 50px;
        }
.category-section .section-title {
            margin-bottom: 25px;
            position: relative;
            display: inline-block;
        }
.category-section .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--main);
            border-radius: 3px;
        }
.category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 20px;
        }
.category-card {
            background: #fff;
            border-radius: 12px;
            padding: 25px 20px;
            text-align: center;
            transition: all .3s ease;
            border: 1px solid var(--soft-line);
            box-shadow: 0 2px 10px rgba(219, 39, 119, .06);
        }
.category-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(219, 39, 119, .15);
            border-color: var(--main);
        }
.category-icon {
            font-size: 38px;
            color: var(--main);
            margin-bottom: 15px;
            display: block;
        }
.category-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
.category-desc {
            font-size: 13px;
            color: #888;
            line-height: 1.5;
        }
.category-tags {
            margin-top: 10px;
        }
.category-tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--bg);
            color: var(--main);
            border-radius: 20px;
            font-size: 12px;
            margin: 3px 2px;
            border: 1px solid var(--soft-line);
        }
.popular-tags {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--soft-line);
            box-shadow: 0 4px 15px rgba(219, 39, 119, .08);
        }
.tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
.tag-cloud .tag {
            padding: 6px 16px;
            background: var(--bg);
            border: 1px solid var(--soft-line);
            border-radius: 30px;
            font-size: 14px;
            color: var(--ink);
            transition: all .3s;
            cursor: pointer;
            text-decoration: none;
        }
.tag-cloud .tag:hover {
            background: var(--main);
            color: #fff;
            border-color: var(--main);
        }
.genre-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
.genre-chip {
            padding: 8px 20px;
            background: #fff;
            border: 1px solid var(--soft-line);
            border-radius: 30px;
            font-size: 14px;
            color: var(--ink);
            font-weight: 500;
            transition: all .3s;
            text-decoration: none;
            cursor: pointer;
        }
.genre-chip:hover {
            background: var(--main);
            color: #fff;
            border-color: var(--main);
        }
.genre-chip.active {
            background: var(--main);
            color: #fff;
            border-color: var(--main);
        }
.stat-banner {
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            border-radius: 16px;
            padding: 30px 40px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            align-items: center;
            margin: 40px 0;
        }
.stat-banner .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
        }
.stat-banner .stat-label {
            font-size: 14px;
            opacity: .9;
        }
.sub-tag-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
.sub-tag-title i {
            color: var(--main);
        }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .about-hero { padding: 80px 0 40px; text-align: center; }
.about-hero .hero-title { font-size: 2.8rem; font-weight: 900; color: var(--ink); }
.about-hero .hero-sub { font-size: 1.1rem; color: var(--main); margin-top: 10px; }
.about-section { padding: 50px 0; }
.about-section .section-title { margin-bottom: 25px; }
.about-card { background: rgba(255,255,255,.6); border: 1px solid var(--soft-line); border-radius: 16px; padding: 28px; margin-bottom: 20px; transition: transform .2s, box-shadow .2s; }
.about-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(219,39,119,.08); }
.about-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--main); margin-bottom: 12px; }
.about-card p { color: var(--ink); line-height: 1.8; margin-bottom: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin: 30px 0; }
.stat-item { background: var(--main); color: #fff; border-radius: 14px; padding: 22px 15px; text-align: center; }
.stat-item .stat-number { font-size: 2rem; font-weight: 800; }
.stat-item .stat-label { font-size: .9rem; opacity: .85; }
.feature-list { list-style: none; padding-left: 0; }
.feature-list li { padding: 8px 0; padding-left: 30px; position: relative; color: var(--ink); }
.feature-list li::before { content: '◆'; position: absolute; left: 0; color: var(--accent); font-size: .8rem; top: 12px; }
.timeline { border-left: 3px solid var(--main); padding-left: 25px; margin-left: 10px; }
.timeline-item { position: relative; margin-bottom: 25px; }
.timeline-item::before { content: ''; position: absolute; left: -33px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); border: 2px solid #fff; box-shadow: 0 0 0 2px var(--accent); }
.timeline-item h4 { font-weight: 700; color: var(--ink); font-size: 1.05rem; margin-bottom: 5px; }
.timeline-item p { color: var(--ink); opacity: .8; margin: 0; font-size: .95rem; }
.cta-box h3 { font-size: 1.6rem; font-weight: 800; margin-bottom: 10px; }
.cta-box p { opacity: .95; margin-bottom: 20px; }
.cta-box .btn-primary-custom { background: #fff; color: var(--main); border: none; padding: 10px 28px; border-radius: 30px; font-weight: 600; text-decoration: none; display: inline-block; }
.cta-box .btn-primary-custom:hover { background: var(--ink); color: #fff; }
.about-hero .hero-title { font-size: 2rem; }
.about-card { padding: 20px; }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .privacy-hero {
            background: linear-gradient(135deg, var(--bg), #ffe4ee);
            padding: 60px 0 40px;
            border-bottom: 2px solid var(--soft-line);
        }
.privacy-card {
            background: #fff;
            border: 1px solid var(--soft-line);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 24px;
            box-shadow: 0 2px 8px rgba(219, 39, 119, 0.06);
        }
.privacy-card h2 {
            color: var(--main);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.privacy-card h2 i {
            color: var(--accent);
            font-size: 1.3rem;
        }
.privacy-card h3 {
            color: var(--ink);
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 20px;
            margin-bottom: 12px;
        }
.privacy-card p {
            color: #6b3a52;
            line-height: 1.8;
            margin-bottom: 12px;
        }
.privacy-card ul {
            padding-left: 20px;
            margin-bottom: 16px;
        }
.privacy-card li {
            color: #6b3a52;
            line-height: 1.8;
            margin-bottom: 8px;
        }
.privacy-card li::marker {
            color: var(--main);
        }
.update-badge {
            display: inline-block;
            background: var(--bg);
            color: var(--main);
            border: 1px solid var(--border-color);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
.privacy-contact {
            background: var(--bg);
            border: 1px solid var(--soft-line);
            border-radius: 16px;
            padding: 24px;
            margin-top: 30px;
        }
.privacy-contact h3 {
            color: var(--main);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
.privacy-contact p {
            color: #6b3a52;
            line-height: 1.8;
        }
.back-home {
            display: inline-block;
            margin-top: 20px;
            padding: 10px 24px;
            background: var(--main);
            color: #fff;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
.back-home:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
.privacy-hero {
                padding: 40px 0 30px;
            }
.privacy-card {
                padding: 20px;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .sitemap-wrapper { max-width: 900px; margin: 0 auto; padding: 40px 20px 60px; }
.sitemap-hero { background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%); border-radius: 16px; padding: 40px; color: #fff; text-align: center; margin-bottom: 40px; position: relative; overflow: hidden; }
.sitemap-hero::before { content: ''; position: absolute; top: -50%; right: -30%; width: 300px; height: 300px; background: rgba(255,255,255,0.1); border-radius: 50%; }
.sitemap-hero h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; }
.sitemap-hero p { font-size: 1.05rem; opacity: 0.95; position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }
.sitemap-section { margin-bottom: 32px; }
.sitemap-section-title { font-size: 1.4rem; font-weight: 700; color: var(--ink); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 3px solid var(--main); display: inline-block; }
.sitemap-section-title i { color: var(--main); margin-right: 8px; }
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.sitemap-item { background: #fff; border: 2px solid var(--soft-line); border-radius: 12px; padding: 20px; transition: all 0.3s ease; text-decoration: none; display: block; }
.sitemap-item:hover { border-color: var(--main); transform: translateY(-3px); box-shadow: 0 8px 20px rgba(219,39,119,0.12); }
.sitemap-item-icon { font-size: 1.8rem; color: var(--main); margin-bottom: 10px; }
.sitemap-item-title { font-size: 1.05rem; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.sitemap-item-desc { font-size: 0.9rem; color: #8a5a6d; line-height: 1.5; }
.quick-links { background: var(--bg); border: 2px dashed var(--main); border-radius: 12px; padding: 24px; margin-top: 40px; }
.quick-links h3 { font-size: 1.2rem; font-weight: 700; color: var(--main); margin-bottom: 16px; }
.quick-links a { color: var(--ink); text-decoration: none; font-weight: 500; transition: color 0.3s; }
.quick-links a:hover { color: var(--main); }
.sitemap-hero { padding: 30px 20px; }
.sitemap-hero h1 { font-size: 1.6rem; }
.sitemap-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
.sitemap-grid { grid-template-columns: 1fr; }