:root {
            --main: #2563eb;
            --accent: #06b6d4;
            --bg: #f4f8ff;
            --text: #0f1e3d;
            --border: #d0dbe9;
            --light-bg: #ffffff;
            --muted: #5e6e8c;
        }
        * { box-sizing: border-box; }
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: 'Inter', '思源黑体', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, h5, .font-serif {
            font-family: '思源宋体', 'Source Han Serif SC', 'Noto Serif SC', Georgia, serif;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        /* 无阴影，纯描边分割 */
        .card, .movie-card, .list-group-item, .section-box {
            background: var(--light-bg);
            border: 1px solid var(--border) !important;
            box-shadow: none !important;
            border-radius: 12px;
            transition: all 0.15s ease;
        }
        .movie-card {
            overflow: hidden;
            cursor: pointer;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
            transition: transform 0.2s, border-color 0.2s;
        }
        .movie-card:hover {
            border-color: var(--main);
            transform: translateY(-3px);
        }
        .poster-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 2 / 3;
            background: #e9eff8;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid var(--border);
        }
        .poster-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: opacity 0.3s, transform 0.4s;
            opacity: 0; /* 渐显 */
            background: linear-gradient(145deg, #dce6f5, #f0f5ff);
        }
        .poster-wrap img.loaded {
            opacity: 1;
        }
        /* 渐变遮罩+播放按钮 */
        .poster-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 25, 52, 0.85) 0%, rgba(15, 30, 61, 0.2) 40%, transparent 100%);
            display: flex;
            align-items: flex-end;
            justify-content: center;
            padding: 1rem;
            opacity: 0;
            transition: opacity 0.25s;
        }
        .movie-card:hover .poster-overlay {
            opacity: 1;
        }
        .play-btn {
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: white;
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .card-info {
            padding: 0.9rem 1rem 1rem;
            background: #fff;
        }
        .card-info h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .card-meta {
            font-size: 0.8rem;
            color: var(--muted);
            display: flex;
            justify-content: space-between;
            margin-top: 0.3rem;
        }
        .badge-type {
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 0.7rem;
            padding: 0.15rem 0.6rem;
            border-radius: 30px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            border-bottom: 2px solid var(--text);
            padding-bottom: 0.5rem;
            margin: 3rem 0 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .section-title i {
            color: var(--main);
        }
        .navbar-theme {
            background: rgba(244, 248, 255, 0.9);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }
        .navbar-brand {
            font-family: '思源宋体', serif;
            font-weight: 900;
            font-size: 1.6rem;
            color: var(--text);
        }
        .navbar-brand i {
            margin-right: 6px;
            color: var(--main);
        }
        .nav-link {
            color: var(--text);
            font-weight: 500;
            margin: 0 0.5rem;
        }
        .nav-link:hover { color: var(--main); }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
            margin: 1.2rem 0 0.8rem;
        }
        .hero-tags span {
            border: 1px solid var(--border);
            background: white;
            padding: 0.4rem 1.1rem;
            border-radius: 50rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            transition: 0.2s;
        }
        .hero-tags span:hover {
            border-color: var(--main);
            background: var(--main);
            color: white;
            cursor: default;
        }
        .step-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .step-item {
            flex: 1 1 200px;
            border: 1px solid var(--border);
            padding: 1.2rem;
            background: white;
            border-radius: 12px;
        }
        .step-item .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
        }
        .hover-shine {
            position: relative;
            overflow: hidden;
        }
        .hover-shine::after {
            content: '';
            position: absolute;
            top: 0;
            left: -80%;
            width: 40%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
            transform: skewX(-20deg);
            transition: 0.4s;
        }
        .hover-shine:hover::after {
            left: 130%;
        }
        .btn-outline-theme {
            border: 1px solid var(--main);
            color: var(--main);
            background: transparent;
        }
        .btn-outline-theme:hover {
            background: var(--main);
            color: white;
        }
        /* 翻牌效果 */
        .flip-card {
            perspective: 1200px;
        }
        .flip-inner {
            transition: transform 0.5s;
            transform-style: preserve-3d;
            position: relative;
            width: 100%;
            height: 100%;
        }
        .movie-card.flipped .flip-inner {
            transform: rotateY(180deg);
        }
        .flip-front, .flip-back {
            backface-visibility: hidden;
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            border-radius: 12px;
            overflow: hidden;
        }
        .flip-back {
            transform: rotateY(180deg);
            background: white;
            border: 1px solid var(--border);
            padding: 1.2rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .flip-back h6 { font-weight: 700; }
        .flip-back p { font-size: 0.8rem; color: var(--muted); }
        .close-flip {
            position: absolute;
            top: 6px;
            right: 10px;
            cursor: pointer;
            background: none;
            border: none;
            font-size: 1.3rem;
            color: var(--text);
        }
        .lazy-img { opacity: 0; transition: opacity 0.3s; }
        .lazy-img.loaded { opacity: 1; }
        /* 数字滚动 */
        .counter {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
        }
        .friend-links a {
            color: var(--main);
            margin-right: 1.2rem;
            text-decoration: none;
            font-size: 0.9rem;
        }
        footer {
            border-top: 1px solid var(--border);
            background: white;
        }
        .footer-links a {
            color: var(--text);
            margin: 0 0.6rem;
            font-size: 0.9rem;
        }
        .navbar-toggler { border: 1px solid var(--border); }

/* --- 子页面追加 --- */
.about-hero { background: linear-gradient(135deg, var(--main), var(--accent)); color: #fff; padding: 80px 0; text-align: center; }
.about-hero h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; color: #fff; }
.about-hero p { font-size: 1.1rem; opacity: .9; max-width: 680px; margin: 0 auto; }
.about-section { padding: 60px 0; }
.about-section h2 { color: var(--main); font-weight: 700; margin-bottom: 24px; font-size: 1.6rem; }
.about-card { background: var(--light-bg); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 24px; }
.about-card h3 { color: var(--text); font-size: 1.15rem; font-weight: 600; margin-bottom: 12px; }
.about-card p { color: var(--muted); line-height: 1.7; }
.feature-icon { color: var(--accent); font-size: 2rem; margin-bottom: 12px; }
.stats-row { background: var(--bg); padding: 40px 0; }
.stat-item { text-align: center; }
.stat-item .number { font-size: 2.2rem; font-weight: 800; color: var(--main); }
.stat-item .label { color: var(--muted); margin-top: 4px; }
.about-footer { padding: 40px 0; }
.about-footer .btn-outline-theme { margin: 4px; }
.about-hero h1 { font-size: 1.8rem; }
.about-section h2 { font-size: 1.3rem; }

/* --- 子页面追加 --- */
/* 页面专属样式 - 帮助页 */
        .faq-hero {
            background: linear-gradient(135deg, var(--main) 0%, var(--accent) 100%);
            color: #fff;
            padding: 60px 0 40px;
            border-radius: 0 0 30px 30px;
            margin-bottom: 40px;
        }
.faq-hero h1 {
            font-weight: 800;
            font-size: 2.2rem;
            margin-bottom: 10px;
            color: #fff;
        }
.faq-hero p {
            color: rgba(255,255,255,.85);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
.faq-section {
            background: var(--light-bg);
            border-radius: 16px;
            padding: 28px;
            margin-bottom: 28px;
            border: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(37, 99, 235, .05);
            transition: transform .2s ease, box-shadow .2s ease;
        }
.faq-section:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, .1);
        }
.faq-section h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--main);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(6, 182, 212, .25);
            display: flex;
            align-items: center;
            gap: 10px;
        }
.faq-section h2 i {
            color: var(--accent);
            font-size: 1.2rem;
        }
.faq-item {
            margin-bottom: 16px;
            padding: 14px 16px;
            background: var(--bg);
            border-radius: 10px;
            border-left: 4px solid var(--accent);
        }
.faq-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
.faq-item h3 i {
            color: var(--main);
            font-size: .9rem;
            flex-shrink: 0;
        }
.faq-item p {
            font-size: .95rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
            padding-left: 24px;
        }
.faq-item ul {
            margin: 8px 0 0 0;
            padding-left: 40px;
            color: var(--muted);
            font-size: .93rem;
            line-height: 1.8;
        }
.faq-item ul li {
            margin-bottom: 4px;
        }
.step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            background: var(--main);
            color: #fff;
            border-radius: 50%;
            font-size: .8rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-right: 8px;
        }
.help-contact-box {
            background: linear-gradient(135deg, rgba(37, 99, 235, .06) 0%, rgba(6, 182, 212, .06) 100%);
            border: 1px dashed var(--main);
            border-radius: 14px;
            padding: 24px;
            text-align: center;
            margin-top: 20px;
        }
.help-contact-box h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
.help-contact-box p {
            color: var(--muted);
            font-size: .95rem;
            margin-bottom: 16px;
        }
.help-contact-box .btn-outline-theme {
            font-weight: 600;
            padding: 8px 24px;
        }
.quick-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 16px;
        }
.quick-links a {
            display: inline-block;
            padding: 8px 18px;
            background: var(--light-bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            color: var(--text);
            font-size: .9rem;
            font-weight: 500;
            text-decoration: none;
            transition: all .3s ease;
        }
.quick-links a:hover {
            background: var(--main);
            color: #fff;
            border-color: var(--main);
            transform: translateY(-2px);
        }
.faq-hero {
                padding: 40px 0 30px;
            }
.faq-hero h1 {
                font-size: 1.7rem;
            }
.faq-section {
                padding: 20px 16px;
            }
.faq-item p {
                padding-left: 0;
                font-size: .9rem;
            }
.faq-item ul {
                padding-left: 24px;
                font-size: .88rem;
            }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .disclaimer-hero { padding: 4rem 0 2rem; background: linear-gradient(135deg, var(--light-bg) 0%, var(--bg) 100%); border-bottom: 1px solid var(--border); }
.disclaimer-card { background: var(--light-bg); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; margin-bottom: 1.5rem; box-shadow: 0 2px 12px rgba(37, 99, 235, 0.06); }
.disclaimer-card h2 { color: var(--main); font-size: 1.35rem; font-weight: 700; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.6rem; }
.disclaimer-card h2 i { color: var(--accent); font-size: 1.2rem; }
.disclaimer-card p { color: var(--text); line-height: 1.8; margin-bottom: 0.8rem; font-size: 0.95rem; }
.disclaimer-card ul { padding-left: 1.2rem; margin-bottom: 0.8rem; }
.disclaimer-card li { color: var(--text); line-height: 1.8; font-size: 0.95rem; margin-bottom: 0.3rem; }
.disclaimer-card strong { color: var(--main); }
.highlight-box { background: var(--bg); border-left: 4px solid var(--main); padding: 1rem 1.2rem; border-radius: 0 8px 8px 0; margin: 1rem 0; }
.highlight-box p { margin-bottom: 0.3rem; }
.highlight-box p:last-child { margin-bottom: 0; }
.contact-links { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 0.8rem; }
.contact-links a { color: var(--main); text-decoration: none; font-weight: 600; display: inline-flex; align-items: center; gap: 0.4rem; }
.contact-links a:hover { color: var(--accent); text-decoration: underline; }
.back-home { margin: 2rem 0 3rem; text-align: center; }
.back-home a { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.8rem; background: var(--main); color: #fff; border-radius: 30px; text-decoration: none; font-weight: 600; transition: all 0.3s; }
.back-home a:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35); }
.disclaimer-hero { padding: 2.5rem 0 1.5rem; }
.disclaimer-card { padding: 1.3rem; }

/* --- 子页面追加 --- */
/* 保证卡片与整体背景一致 (覆盖bootstrap默认白底) */
        .card, .card-body, .card-header, .card-footer {
            background: var(--light-bg);
            color: var(--text);
            border-color: var(--border);
        }
.list-group-item {
            background: var(--light-bg);
            color: var(--text);
            border-color: var(--border);
        }
/* 榜单特有细节 */
        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 2.2rem;
            height: 2.2rem;
            background: var(--main);
            color: #fff;
            font-weight: 700;
            border-radius: 0.5rem;
            margin-right: 0.6rem;
        }
.rank-badge.top-1 { background: #d4a017; }
/* 金奖 */
        .rank-badge.top-2 { background: #6c757d; }
/* 银奖 */
        .rank-badge.top-3 { background: #b87333; }
/* 铜奖 */
        .rank-item {
            transition: transform .2s ease, box-shadow .2s;
            border-left: 4px solid transparent;
        }
.rank-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.08);
            border-left-color: var(--accent);
        }
.ranking-section-title {
            border-bottom: 3px solid var(--main);
            padding-bottom: 0.5rem;
            display: inline-block;
        }
.trend-up { color: #16a34a; font-weight: 600; }
.trend-down { color: #dc2626; font-weight: 600; }
.trend-flat { color: var(--muted); font-weight: 500; }
.genre-tag {
            background: rgba(6, 182, 212, 0.08);
            color: var(--main);
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
        }
.rank-badge { min-width: 1.8rem; height: 1.8rem; font-size: 0.8rem; }