:root{
      --main: #38bdf8;
      --accent: #a78bfa;
      --bg: #0f172a;
      --text: #e2e8f0;
      --card-bg: #1e293b;
      --shadow: 0 20px 35px -12px rgba(0,0,0,0.7);
      --shadow-hover: 0 30px 50px -15px rgba(56,189,248,0.2);
      --radius: 20px;
    }
    * { margin:0; padding:0; box-sizing:border-box; }
    body{
      background: var(--bg);
      color: var(--text);
      font-family: 'Inter', '思源黑体', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
      line-height: 1.7;
      font-weight: 400;
      position: relative;
      overflow-x: hidden;
    }
    body::before{
      content: "";
      position: fixed;
      top:0; left:0; width:100%; height:100%;
      background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><filter id="noise"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100" height="100" filter="url(%23noise)" opacity="0.06"/></svg>');
      pointer-events: none;
      z-index: 9999;
    }
    /* 滚动进度条 */
    #progressBar{
      position: fixed;
      top:0; left:0;
      width:0%; height: 4px;
      background: linear-gradient(90deg, var(--main), var(--accent));
      z-index: 10000;
      border-radius: 0 3px 3px 0;
      box-shadow: 0 0 8px var(--main);
    }
    /* 标题字体 */
    h1,h2,h3,.font-title{
      font-family: 'Source Han Serif SC', '思源宋体', 'Songti SC', Georgia, serif;
      font-weight: 800;
      letter-spacing: 0.5px;
    }
    .navbar-custom{
      background: rgba(15,23,42,0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(56,189,248,0.2);
      padding: 12px 0;
      position: sticky;
      top:0;
      z-index: 900;
    }
    .navbar-brand{
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--main) !important;
      text-shadow: 0 2px 10px rgba(56,189,248,0.3);
      letter-spacing: -0.5px;
      font-family: 'Source Han Serif SC', serif;
    }
    .navbar-brand i{
      color: var(--accent);
      margin-right: 6px;
    }
    .nav-link{
      color: var(--text) !important;
      font-weight: 500;
      margin: 0 10px;
      position: relative;
      transition: color 0.2s;
    }
    .nav-link:hover{
      color: var(--main) !important;
    }
    .nav-link::after{
      content: '';
      position: absolute;
      bottom: 0; left: 10px; right: 10px;
      height: 2px;
      background: linear-gradient(90deg, var(--main), var(--accent));
      transform: scaleX(0);
      transition: transform 0.2s;
    }
    .nav-link:hover::after{
      transform: scaleX(1);
    }
    /* 左侧固定侧栏 */
    .side-layout{
      display: flex;
      gap: 28px;
      margin-top: 25px;
      align-items: flex-start;
    }
    .left-side{
      position: sticky;
      top: 100px;
      width: 260px;
      flex-shrink: 0;
      background: rgba(30,41,59,0.6);
      backdrop-filter: blur(8px);
      border-radius: var(--radius);
      padding: 25px 20px;
      border: 1px solid rgba(167,139,250,0.2);
      box-shadow: var(--shadow);
    }
    .left-side h5{
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--accent);
      border-left: 4px solid var(--main);
      padding-left: 12px;
      margin-bottom: 20px;
      font-family: 'Source Han Serif SC', serif;
    }
    .side-nav-item{
      display: flex;
      align-items: center;
      padding: 10px 12px;
      margin-bottom: 6px;
      border-radius: 40px;
      color: var(--text);
      text-decoration: none;
      font-weight: 500;
      transition: all 0.2s;
      background: transparent;
    }
    .side-nav-item i{
      width: 24px;
      margin-right: 10px;
      color: var(--main);
      font-size: 1.1rem;
    }
    .side-nav-item:hover{
      background: rgba(56,189,248,0.15);
      color: var(--main);
      transform: translateX(4px);
      text-decoration: none;
    }
    /* 右侧瀑布流 */
    .masonry-grid{
      flex: 1;
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 26px;
      width: 100%;
    }
    .masonry-card{
      background: var(--card-bg);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: all 0.35s cubic-bezier(0.2,0,0,1);
      border: 1px solid rgba(56,189,248,0.12);
    }
    .masonry-card:hover{
      transform: translateY(-10px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(167,139,250,0.4);
    }
    .masonry-card img{
      width: 100%;
      height: 180px;
      object-fit: cover;
      background: #0b1220;
    }
    .card-content{
      padding: 18px;
    }
    .card-tag{
      display: inline-block;
      background: rgba(167,139,250,0.2);
      color: var(--accent);
      padding: 3px 12px;
      border-radius: 40px;
      font-size: 0.75rem;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .card-content h3{
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .card-content p{
      color: #94a3b8;
      font-size: 0.9rem;
      margin-bottom: 15px;
    }
    .btn-outline-main{
      border: 1px solid var(--main);
      color: var(--main);
      border-radius: 40px;
      padding: 4px 14px;
      font-size: 0.8rem;
      transition: all 0.2s;
      background: transparent;
    }
    .btn-outline-main:hover{
      background: var(--main);
      color: #0f172a;
    }
    /* hero */
    .hero-section{
      padding: 50px 0 30px;
    }
    .hero-stats{
      display: flex;
      gap: 40px;
      margin-bottom: 30px;
      flex-wrap: wrap;
    }
    .stat-item h3{
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--main);
      line-height: 1.1;
      font-family: 'Source Han Serif SC', serif;
      text-shadow: 0 0 20px rgba(56,189,248,0.5);
    }
    .stat-item p{
      color: var(--text);
      opacity: 0.8;
    }
    .hero-title{
      font-size: 4rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 18px;
      font-family: 'Source Han Serif SC', serif;
    }
    .hero-title span{
      color: var(--accent);
    }
    /* 时间线 */
    .timeline-wrap{
      position: relative;
      padding-left: 28px;
      border-left: 2px solid rgba(167,139,250,0.3);
    }
    .timeline-item{
      position: relative;
      padding-bottom: 28px;
    }
    .timeline-item::before{
      content: "";
      position: absolute;
      left: -33px;
      top: 6px;
      width: 14px;
      height: 14px;
      background: var(--main);
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(56,189,248,0.2);
    }
    /* 标签页 */
    .custom-tabs .nav-tabs{
      border-bottom: 2px solid rgba(56,189,248,0.2);
      display: flex;
      gap: 15px;
    }
    .custom-tabs .nav-link{
      background: transparent;
      border: none;
      color: var(--text);
      font-weight: 600;
      border-radius: 30px;
      padding: 6px 22px;
    }
    .custom-tabs .nav-link.active{
      background: linear-gradient(145deg, rgba(56,189,248,0.2), rgba(167,139,250,0.2));
      color: var(--main);
    }
    /* 通用区块 */
    .block-section{
      margin: 45px 0;
    }
    .section-title{
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 28px;
      color: var(--text);
      font-family: 'Source Han Serif SC', serif;
    }
    .section-title i{
      color: var(--accent);
      margin-right: 10px;
    }
    /* footer */
    .footer{
      border-top: 1px solid rgba(56,189,248,0.1);
      padding: 35px 0;
      background: rgba(2,6,23,0.4);
      margin-top: 50px;
    }
    .friend-links{
      background: #1e293b;
      border-radius: 40px;
      padding: 25px 20px;
      margin: 40px 0;
      border: 1px solid rgba(167,139,250,0.3);
    }
    .friend-links h4{
      color: var(--accent);
      font-size: 1.4rem;
    }
    a{
      color: var(--main);
    }
    /* 滚动淡入 */
    .fade-section{
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-section.show{
      opacity: 1;
      transform: translateY(0);
    }
    @media (max-width: 992px) {
      .left-side{
        display: none;
      }
      .hero-title{
        font-size: 2.5rem;
      }
    }

/* --- 子页面追加 --- */
/* 确保所有组件跟随深色主题 */
        body { background: var(--bg); color: var(--text); }
.card, .card-body { background: var(--card-bg); color: var(--text); border-color: #334155; }
.form-control, .form-select { background: rgba(0,0,0,.35); color: var(--text); border-color: #334155; }
.form-control::placeholder { color: rgba(226,232,240,.4); }
.list-group-item, .accordion-item, .accordion-button { background: var(--card-bg); color: var(--text); border-color: #334155; }
.accordion-button:not(.collapsed) { background: rgba(56,189,248,.08); color: var(--main); }
.navbar { background: rgba(15,23,42,.85); backdrop-filter: blur(8px); }
/* 页面内特定组件 */
        .about-hero { padding: 3.5rem 0 2rem; }
.about-hero h1 { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.02em; }
.about-hero .lead { color: #94a3b8; max-width: 720px; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.about-grid { grid-template-columns: 1fr; }
.stat-chip { background: rgba(56,189,248,.08); border: 1px solid rgba(56,189,248,.2); border-radius: 40px; padding: .4rem 1rem; display: inline-block; margin-right: .5rem; color: var(--main); font-weight: 500; }
.timeline-item h4 { color: var(--accent); font-weight: 600; }
.footer a { color: #94a3b8; }
.footer a:hover { color: var(--main); }
.friend-links a { margin-right: 1.5rem; }
.text-muted { color: #64748b !important; }

/* --- 子页面追加 --- */
/* 子页面少量专属样式 */
        .subpage-hero {
            background: radial-gradient(circle at 20% 30%, rgba(56,189,248,0.15), transparent 60%);
        }
.genre-badge {
            background: rgba(167,139,250,0.15);
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
        }
.browse-bar {
            background: rgba(30,41,59,0.6);
            backdrop-filter: blur(6px);
            border-radius: 40px;
            padding: 0.4rem 0.4rem 0.4rem 1.5rem;
        }
.browse-bar input {
            background: transparent;
            border: none;
            color: var(--text);
            flex: 1;
        }
.browse-bar input:focus {
            outline: none;
            color: var(--text);
        }
.browse-bar input::placeholder {
            color: rgba(226,232,240,0.5);
        }
.browse-bar button {
            background: var(--main);
            border: none;
            border-radius: 40px;
            padding: 0.5rem 1.8rem;
            font-weight: 600;
            color: #0f172a;
        }
.tag-cloud a {
            color: var(--text);
            text-decoration: none;
            border: 1px solid rgba(56,189,248,0.3);
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            transition: 0.2s;
        }
.tag-cloud a:hover {
            background: var(--main);
            color: #0f172a;
            border-color: var(--main);
        }
.count-highlight {
            color: var(--main);
            font-weight: 700;
        }
/* 覆盖bootstrap组件类为本站配色（保险） */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
            background: var(--card-bg);
            color: var(--text);
            border-color: rgba(56,189,248,0.15);
        }
.form-control {
            background: rgba(0,0,0,0.35);
            color: var(--text);
            border-color: var(--border-color);
        }

/* --- 子页面追加 --- */
/* 排行榜页面专属样式 */
        .ranking-hero {
            padding: 80px 0 40px;
            text-align: center;
        }
.ranking-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
.rank-tab {
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--card-bg);
            color: var(--text);
            border: 1px solid rgba(56, 189, 248, 0.2);
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
        }
.rank-tab:hover, .rank-tab.active {
            background: var(--main);
            color: #0f172a;
            border-color: var(--main);
        }
.rank-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
.rank-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 16px 20px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            border: 1px solid rgba(56, 189, 248, 0.1);
        }
.rank-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
.rank-num {
            font-size: 28px;
            font-weight: 800;
            min-width: 50px;
            text-align: center;
            color: var(--main);
        }
.rank-num.top-1 { color: #fbbf24; font-size: 36px; }
.rank-num.top-2 { color: #94a3b8; font-size: 32px; }
.rank-num.top-3 { color: #d97706; font-size: 32px; }
.rank-cover {
            width: 80px;
            height: 110px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--main), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            flex-shrink: 0;
            overflow: hidden;
        }
.rank-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
.rank-info {
            flex: 1;
        }
.rank-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
.rank-info p {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            margin-bottom: 8px;
        }
.rank-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--main);
        }
.rank-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
.rank-tag {
            padding: 2px 10px;
            background: rgba(56, 189, 248, 0.1);
            border-radius: 20px;
            font-size: 12px;
            color: var(--main);
        }
.rank-stats {
            display: flex;
            gap: 20px;
            align-items: center;
            color: rgba(226, 232, 240, 0.6);
            font-size: 14px;
            white-space: nowrap;
        }
.rank-stats i {
            margin-right: 4px;
        }
.rank-trend {
            color: #34d399;
            font-weight: 600;
        }
.rank-trend.down {
            color: #f87171;
        }
.rank-item {
                flex-wrap: wrap;
                padding: 14px;
            }
.rank-stats {
                width: 100%;
                gap: 12px;
                font-size: 13px;
                margin-top: 8px;
            }
.rank-cover {
                width: 64px;
                height: 88px;
            }

/* --- 子页面追加 --- */
/* 确保隐私页卡片风格与站点一致，且 Bootstrap 组件不出现白底 */
        .privacy-card, .privacy-card-body {
            background: var(--card-bg);
            color: var(--text);
            border: 1px solid rgba(56,189,248,0.15);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s ease, transform 0.2s;
        }
.privacy-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
.privacy-card .card-title {
            color: var(--main);
            font-weight: 600;
            margin-bottom: 1rem;
        }
.privacy-card .card-text {
            color: var(--text);
            opacity: 0.9;
        }
.list-group-item {
            background: var(--card-bg) !important;
            color: var(--text) !important;
            border-color: rgba(56,189,248,0.2) !important;
        }
.list-group-item i {
            color: var(--accent);
        }
.privacy-highlight {
            background: rgba(167,139,250,0.1);
            border-left: 4px solid var(--accent);
            padding: 1rem 1.2rem;
            border-radius: 0 12px 12px 0;
            color: var(--text);
        }
/* 覆盖 Bootstrap 可能引入的白底 */
        .card, .card-body, .card-header, .card-footer {
            background: var(--card-bg) !important;
            color: var(--text) !important;
            border-color: rgba(56,189,248,0.15) !important;
        }
.breadcrumb-item a {
            color: var(--main);
        }
.breadcrumb-item.active {
            color: var(--text);
            opacity: 0.7;
        }

/* --- 子页面追加 --- */
.disclaimer-hero {
      background: linear-gradient(145deg, rgba(56,189,248,0.08) 0%, rgba(167,139,250,0.06) 100%);
      border-bottom: 1px solid rgba(56,189,248,0.15);
    }
.legal-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 2rem 2.2rem;
      border: 1px solid rgba(56,189,248,0.12);
      transition: transform .2s, box-shadow .2s;
      height: 100%;
    }
.legal-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
.legal-icon {
      color: var(--accent);
      font-size: 1.8rem;
      margin-bottom: 1rem;
    }
.legal-card h3 {
      color: var(--main);
      font-weight: 700;
      font-size: 1.35rem;
      letter-spacing: -.01em;
      margin-bottom: .8rem;
    }
.legal-card p, .legal-card li {
      color: var(--text);
      opacity: .88;
      font-size: .95rem;
      line-height: 1.65;
    }
.legal-card ul {
      padding-left: 1.2rem;
    }
.legal-card li {
      margin-bottom: .35rem;
    }
.highlight-badge {
      display: inline-block;
      background: rgba(167,139,250,.15);
      color: var(--accent);
      padding: .15rem .7rem;
      border-radius: 30px;
      font-size: .8rem;
      font-weight: 600;
      letter-spacing: .02em;
      margin-right: .3rem;
    }
.border-accent {
      border-bottom: 2px solid var(--accent);
      display: inline-block;
      padding-bottom: .25rem;
    }
/* 覆盖 Bootstrap 潜在白底（仅确保无白块） */
    .navbar, .navbar-collapse, .nav-link {
      background: transparent !important;
      color: var(--text) !important;
    }
.navbar-toggler {
      border-color: rgba(56,189,248,0.4) !important;
    }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-body { background:transparent !important; color:#e2e8f0 !important; }
.accordion-header { background:transparent !important; }
.breadcrumb { color:#e2e8f0 !important; }