:root {
            --primary: #4f46e5;
            --accent: #7c3aed;
            --bg: #f5f3ff;
            --text: #1e1b4b;
            --radius: 8px;
            --light-line: rgba(79, 70, 229, 0.1);
            --shadow-sm: 0 6px 18px rgba(79, 70, 229, 0.06);
        }
        * { box-sizing: border-box; }
        body {
            background: var(--bg);
            color: var(--text);
            font-family: 'Noto Sans SC', sans-serif;
            font-weight: 400;
            letter-spacing: 0.2px;
            overflow-x: hidden;
        }
        h1, h2, h3, .display-font, .navbar-brand {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
        }
        /* 几何色块背景装饰 */
        .geo-bg {
            position: relative;
            isolation: isolate;
        }
        .geo-bg::before, .geo-bg::after {
            content: '';
            position: absolute;
            z-index: -1;
            border-radius: 40% 60% 70% 30% / 30% 40% 60% 70%;
            opacity: 0.5;
            filter: blur(30px);
            background: radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.2), transparent 60%);
        }
        .geo-bg::before { width: 500px; height: 500px; top: -120px; left: -120px; }
        .geo-bg::after { width: 400px; height: 400px; bottom: 0; right: 0; background: radial-gradient(circle, rgba(79,70,229,0.18), transparent 70%); }

        /* 导航 */
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--text);
            opacity: 0.85;
            margin: 0 0.5rem;
            transition: 0.2s;
            border-radius: 20px;
            padding: 0.5rem 1rem;
        }
        .navbar-nav .nav-link:hover { background: rgba(79,70,229,0.08); color: var(--primary); opacity: 1; }
        .btn-glow {
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border: none;
            color: #fff;
            transition: background 0.3s, transform 0.1s;
            background-size: 200% 200%;
            border-radius: var(--radius);
        }
        .btn-glow:hover {
            background-position: 100% 0;
            animation: glowShift 2s infinite alternate;
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.2);
        }
        @keyframes glowShift {
            0% { filter: brightness(1); }
            100% { filter: brightness(1.15); }
        }
        /* 卡片网格 */
        .poster-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }
        .poster-card {
            aspect-ratio: 2 / 3;
            background: #e9e4ff;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            transition: transform 0.25s ease, box-shadow 0.3s;
            box-shadow: var(--shadow-sm);
        }
        .poster-card img {
            width: 100%; height: 100%;
            object-fit: cover;
            display: block;
        }
        .poster-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(30, 27, 75, 0.15); }
        .poster-overlay {
            position: absolute;
            bottom: 0; left: 0; right: 0;
            padding: 1rem 0.8rem 0.5rem;
            background: linear-gradient(transparent, rgba(15, 10, 50, 0.8));
            color: white;
            font-weight: 500;
            font-size: 0.9rem;
            opacity: 0;
            transition: opacity 0.2s;
        }
        .poster-card:hover .poster-overlay { opacity: 1; }
        .section-title {
            font-weight: 700;
            font-size: 2.2rem;
            margin-bottom: 1.2rem;
            border-left: 6px solid var(--accent);
            padding-left: 1rem;
        }
        .table-compare td {
            padding: 0.9rem 1.2rem;
            border-bottom: 1px solid var(--light-line);
            background: white;
        }
        .step-number {
            display: inline-grid;
            place-items: center;
            width: 2.2rem; height: 2.2rem;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            font-weight: 700;
            margin-right: 0.5rem;
        }
        .friend-links a {
            color: var(--text);
            margin-right: 1.5rem;
            text-decoration: underline dotted;
            opacity: 0.8;
        }
        footer a { color: #ccc; text-decoration: none; margin: 0 0.5rem; }
        .parallax-hero {
            background-attachment: fixed;
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
        }
        .hero-card { background: rgba(255,255,255,0.8); backdrop-filter: blur(6px); border-radius: 16px; padding: 2.5rem; }
        @media (max-width: 992px) {
            .poster-grid { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 600px) {
            .poster-grid { grid-template-columns: repeat(2, 1fr); }
            h1 { font-size: 2.5rem !important; }
        }
        /* 数字滚动动画 */
        .counter { font-variant-numeric: tabular-nums; }
        .stat-number { font-size: 3rem; font-weight: 700; color: var(--primary); line-height: 1; }
        .geo-shapes span {
            position: absolute; display: block; z-index: -1;
        }

/* --- 子页面追加 --- */
/* 本页少量专属样式 — 仅用于补充页面特有组件，不覆盖全局变量 */
        .about-hero {
            background: linear-gradient(135deg, var(--bg), #e9e4ff);
            border-bottom: 1px solid var(--light-line);
        }
.about-badge {
            background: rgba(79, 70, 229, 0.12);
            color: var(--primary);
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            display: inline-block;
            font-size: 0.8rem;
            letter-spacing: 0.3px;
        }
.about-card {
            background: #ffffff;  /* 由于站点是浅紫背景，卡片用白并加微阴影 */
            border: 1px solid var(--light-line);
            border-radius: var(--radius);
            padding: 1.8rem 1.6rem;
            transition: transform 0.2s, box-shadow 0.2s;
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
.about-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(79, 70, 229, 0.1);
        }
.about-card i {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 1rem;
        }
.about-card h3 {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text);
        }
.about-card p {
            color: #3c376b;
            font-size: 0.95rem;
            margin-bottom: 0;
        }
.principles-list li {
            background: transparent;
            color: var(--text);
            border: none;
            padding: 0.8rem 0;
            border-bottom: 1px dashed rgba(79, 70, 229, 0.2);
            display: flex;
            gap: 12px;
            align-items: baseline;
        }
.principles-list li i {
            color: var(--primary);
            width: 20px;
            font-size: 0.9rem;
        }
.about-highlight {
            background: rgba(124, 58, 237, 0.06);
            padding: 2.2rem 1.8rem;
            border-radius: 24px;
            border-left: 4px solid var(--accent);
        }
.footer-links a {
            color: var(--text);
            opacity: 0.8;
            text-decoration: none;
        }
.footer-links a:hover {
            opacity: 1;
            text-decoration: underline;
        }
/* 避免bootstrap默认白底卡片冲突 */
        .list-group-item {
            background: transparent;
        }
.navbar {
            background-color: rgba(255,255,255,0.7) !important;
            backdrop-filter: blur(8px);
        }
.navbar-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
.navbar-brand, .navbar-nav .nav-link {
            color: var(--text) !important;
        }
.navbar-toggler-icon {
            filter: brightness(0.2) sepia(1) hue-rotate(220deg) saturate(5);
        }
/* 确保所有卡片、表单等不使用bootstrap默认白底 */
        .accordion-button, .accordion-item {
            background: transparent;
        }

/* --- 子页面追加 --- */
/* 在遵守全局样式的基础上，仅对隐私排版做少量微调，所有配色取自 :root 变量 */
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--text);
        }
.privacy-block {
            background: rgba(255,255,255,0.7);
            backdrop-filter: blur(4px);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--light-line);
            padding: 2rem 1.8rem;
        }
.privacy-title-icon {
            color: var(--primary);
        }
.list-check {
            list-style: none;
            padding-left: 0;
        }
.list-check li {
            padding-left: 1.8rem;
            position: relative;
            margin-bottom: 0.6rem;
        }
.list-check li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0;
            color: var(--accent);
            font-size: 0.95rem;
        }
.muted-text {
            color: var(--text);
            opacity: 0.75;
        }
.small-note {
            font-size: 0.9rem;
            background: var(--bg);
            padding: 0.8rem 1rem;
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
        }
hr {
            border-top: 1px solid var(--light-line);
            opacity: 0.5;
        }

/* --- 子页面追加 --- */
/* 延续首页视觉变量，不做多余改动 */
        body {
            font-family: 'Noto Sans SC', 'Inter', sans-serif;
            background-color: var(--bg);
            color: var(--text);
        }
.terms-hero {
            background: linear-gradient(135deg, rgba(79,70,229,.03) 0%, rgba(124,58,237,.06) 100%);
            border-bottom: 1px solid var(--light-line);
        }
.terms-section {
            background: #ffffffd9; 
            background: rgba(255,255,255,0.72);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(79,70,229,0.15);
            border-radius: calc(var(--radius) * 1.5);
            box-shadow: var(--shadow-sm);
            padding: 2rem 1.8rem;
            transition: 0.2s ease;
        }
.terms-section h2 {
            font-weight: 700;
            color: var(--text);
            border-left: 5px solid var(--primary);
            padding-left: 1.2rem;
            margin-bottom: 1.5rem;
            letter-spacing: -0.01em;
        }
.terms-section h3 {
            font-weight: 600;
            color: var(--text);
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.35rem;
        }
.terms-section p, .terms-section li {
            font-weight: 400;
            color: rgba(30,27,75,0.92);
            line-height: 1.8;
        }
.terms-section ul, .terms-section ol {
            padding-left: 1.6rem;
        }
.terms-section a {
            color: var(--primary);
            font-weight: 500;
            text-decoration: none;
            border-bottom: 1px dashed var(--primary);
        }
.terms-section a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
.legal-badge {
            background: rgba(79,70,229,0.08);
            color: var(--primary);
            padding: 0.4rem 1rem;
            border-radius: 50rem;
            font-size: 0.85rem;
            font-weight: 500;
            display: inline-block;
        }
.update-tag {
            background: rgba(124,58,237,0.07);
            color: #6d28d9;
        }
/* 确保footer链接与主站一致 */
        .footer-links a {
            color: var(--text);
            opacity: 0.8;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.table { color:#1e1b4b !important; border-color:rgba(0,0,0,.12) !important; --bs-table-bg:transparent !important; --bs-table-color:#1e1b4b !important; }
.accordion-body { background:transparent !important; color:#1e1b4b !important; }
.accordion-header { background:transparent !important; }