/* 深夜石板 配色 */
        :root {
            --primary: #38bdf8;
            --accent: #a78bfa;
            --bg: #0f172a;
            --text: #e2e8f0;
            --border-color: rgba(56, 189, 248, 0.25);
            --card-bg: #1e293b;
            --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
        }

        * {
            border-radius: 0 !important;
            box-shadow: none !important;
            outline: none;
        }

        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: 'Inter', sans-serif;
            letter-spacing: 0.01em;
            line-height: 1.7;
        }

        h1, h2, h3, h4, .display-1, .display-2, .display-3, .display-4, .display-5 {
            font-weight: 900;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        a {
            color: var(--primary);
            text-decoration: none;
        }

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* 几何色块背景装饰 */
        .geo-bg {
            position: relative;
            overflow: hidden;
        }
        .geo-bg::before {
            content: '';
            position: absolute;
            top: 120px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: var(--accent);
            opacity: 0.12;
            transform: rotate(20deg);
            z-index: 0;
            pointer-events: none;
        }
        .geo-bg::after {
            content: '';
            position: absolute;
            bottom: 150px;
            left: -80px;
            width: 260px;
            height: 260px;
            background: var(--primary);
            opacity: 0.1;
            border-radius: 50% !important;
            z-index: 0;
            pointer-events: none;
        }

        /* 导航 */
        .navbar {
            background-color: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 1.5rem;
            z-index: 100;
        }
        .navbar-brand {
            font-weight: 900;
            font-size: 1.6rem;
            color: var(--text) !important;
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            color: var(--primary);
            font-size: 1.4rem;
        }
        .nav-link {
            color: var(--text) !important;
            font-weight: 500;
            margin: 0 0.75rem;
            padding: 0.3rem 0 !important;
            border-bottom: 2px solid transparent;
        }
        .nav-link:hover {
            border-bottom-color: var(--primary);
        }
        .navbar-toggler {
            border-color: var(--border-color);
        }
        .navbar-toggler-icon {
            filter: invert(0.8);
        }

        /* Hero 打字机 + 视差 */
        .hero-section {
            padding: 8rem 0 6rem;
            position: relative;
            background: linear-gradient(145deg, #0f172a 0%, #0b1120 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .hero-bg-parallax {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 120%;
            background-image: url('{随机图片}');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.18;
            z-index: 1;
            transform: translateY(0);
            will-change: transform;
        }
        .hero-content {
            position: relative;
            z-index: 3;
        }
        .typewriter {
            font-size: 3.8rem;
            font-weight: 900;
            color: var(--text);
            min-height: 1.2em;
            border-right: 4px solid var(--primary);
            display: inline-block;
            white-space: nowrap;
            overflow: hidden;
            line-height: 1.2;
            letter-spacing: -0.03em;
        }
        .typewriter-static {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 1.25rem;
            color: #94a3b8;
            max-width: 540px;
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin-top: 2rem;
        }

        /* 区块通用 */
        .section-title {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 2.5rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-title i {
            color: var(--primary);
            font-size: 2rem;
        }

        /* 特色卡片 (三栏卡片网格) */
        .feature-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 2rem 1.5rem;
            transition: transform 0.25s ease, border-color 0.3s ease;
            cursor: default;
        }
        .feature-card:hover {
            transform: scale(1.02);
            border-color: var(--primary);
        }
        .feature-card .icon-lg {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }
        .feature-card h3 {
            font-weight: 800;
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
        }
        .feature-card p {
            color: #b0c4de;
            font-size: 0.95rem;
        }

        /* 对比表格 */
        .compare-table-wrap {
            border: 1px solid var(--border-color);
            overflow-x: auto;
            background: rgba(30, 41, 59, 0.5);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .compare-table th {
            background: #1e293b;
            font-weight: 700;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
            color: var(--text);
            font-size: 1rem;
        }
        .compare-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(56, 189, 248, 0.15);
            color: #cbd5e1;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .mono-number {
            font-family: var(--mono);
            color: var(--primary);
            font-weight: 600;
        }

        /* 编号清单 */
        .numbered-list {
            list-style: none;
            counter-reset: step-counter;
            padding-left: 0;
        }
        .numbered-list li {
            counter-increment: step-counter;
            position: relative;
            padding-left: 3rem;
            margin-bottom: 2rem;
            border-bottom: 1px dashed rgba(56,189,248,0.3);
            padding-bottom: 1.5rem;
        }
        .numbered-list li:last-child {
            border-bottom: none;
        }
        .numbered-list li::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 2rem;
            height: 2rem;
            background: var(--primary);
            color: #0f172a;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--mono);
            font-size: 1.1rem;
        }

        /* FAQ */
        .faq-item {
            border-left: 3px solid var(--accent);
            padding: 0.8rem 0 0.8rem 1.5rem;
            margin-bottom: 2rem;
        }
        .faq-item h4 {
            font-weight: 700;
            font-size: 1.2rem;
        }
        .faq-item p {
            color: #b0c4de;
        }

        /* CTA */
        .cta-box {
            border: 2px solid var(--primary);
            padding: 3rem 2rem;
            background: rgba(56, 189, 248, 0.05);
            text-align: center;
        }
        .btn-cta {
            background: var(--primary);
            color: #0f172a;
            font-weight: 800;
            padding: 0.8rem 2.5rem;
            border: none;
            font-size: 1.1rem;
            transition: 0.2s;
        }
        .btn-cta:hover {
            background: var(--accent);
            color: #0f172a;
            transform: scale(1.03);
        }

        /* 友情链接 */
        .friends-links {
            border-top: 1px solid var(--border-color);
            margin-top: 4rem;
            padding-top: 2rem;
        }
        .friends-links a {
            margin-right: 2rem;
            color: #94a3b8;
            font-size: 0.9rem;
        }

        footer {
            border-top: 1px solid var(--border-color);
            color: #94a3b8;
            font-size: 0.9rem;
        }

        /* 图片懒加载渐显占位 */
        img.lazy {
            background: #1e293b;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        img.lazy.loaded {
            opacity: 1;
            background: transparent;
        }

        @media (max-width: 992px) {
            .feature-card-grid {
                grid-template-columns: 1fr;
            }
            .typewriter {
                font-size: 2.4rem;
                white-space: normal;
            }
        }
        @media (max-width: 576px) {
            .navbar-brand {
                font-size: 1.2rem;
            }
        }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .about-hero { padding: 120px 0 60px; background: linear-gradient(180deg, rgba(15,23,42,0.9) 0%, rgba(15,23,42,1) 100%); }
.about-section { padding: 60px 0; border-bottom: 1px solid var(--border-color); }
.about-section:last-of-type { border-bottom: none; }
.about-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 28px; margin-bottom: 24px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.about-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.about-card h3 { color: var(--primary); font-size: 1.4rem; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.about-card h3 i { font-size: 1.2rem; color: var(--accent); }
.about-card p { color: var(--text); line-height: 1.8; margin-bottom: 10px; }
.about-card ul { list-style: none; padding-left: 0; }
.about-card ul li { padding: 6px 0; padding-left: 24px; position: relative; color: var(--text); line-height: 1.7; }
.about-card ul li::before { content: "▹"; position: absolute; left: 0; color: var(--primary); }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 30px; }
.stat-item { text-align: center; padding: 24px 16px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; }
.stat-item .stat-number { font-family: var(--mono); font-size: 2.4rem; font-weight: 800; color: var(--primary); }
.stat-item .stat-label { color: var(--text); opacity: 0.8; margin-top: 6px; font-size: 0.9rem; }
.timeline { position: relative; padding-left: 30px; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--border-color); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item::before { content: ""; position: absolute; left: -27px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--primary); border: 3px solid var(--bg); }
.timeline-item .timeline-date { font-family: var(--mono); color: var(--accent); font-size: 0.85rem; }
.timeline-item .timeline-title { font-weight: 600; color: var(--text); margin-top: 4px; }
.timeline-item .timeline-desc { color: var(--text); opacity: 0.75; font-size: 0.95rem; margin-top: 6px; line-height: 1.6; }
.cta-box-about { background: linear-gradient(135deg, rgba(56,189,248,0.1) 0%, rgba(167,139,250,0.1) 100%); border: 1px solid var(--border-color); border-radius: 16px; padding: 40px; text-align: center; margin: 40px 0; }
.cta-box-about h3 { color: var(--primary); font-size: 1.8rem; font-weight: 800; margin-bottom: 16px; }
.cta-box-about p { color: var(--text); max-width: 600px; margin: 0 auto 24px; line-height: 1.7; }
.btn-cta-about { display: inline-block; background: var(--primary); color: #0f172a; font-weight: 700; padding: 12px 36px; border-radius: 50px; text-decoration: none; transition: all 0.3s ease; }
.btn-cta-about:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(56,189,248,0.3); }
.about-hero { padding: 100px 0 40px; }
.about-card { padding: 20px; }
.stat-grid { grid-template-columns: repeat(2, 1fr); }
.cta-box-about { padding: 28px 20px; }
.cta-box-about h3 { font-size: 1.4rem; }

/* --- 子页面追加 --- */
/* 本页专属补充样式 —— 免责声明排版 */
        .disclaimer-hero {
            padding: 120px 0 60px;
            background: linear-gradient(180deg, rgba(15,23,42,.6) 0%, rgba(15,23,42,.2) 100%), var(--bg);
            text-align: center;
        }
.disclaimer-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }
.disclaimer-hero .hero-sub {
            max-width: 720px;
            margin: 0 auto;
            color: rgba(226,232,240,.85);
            font-size: 1.05rem;
            line-height: 1.8;
        }
.disclaimer-section {
            padding: 60px 0;
            border-bottom: 1px solid rgba(56,189,248,.08);
        }
.disclaimer-section:last-child {
            border-bottom: none;
        }
.disclaimer-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.disclaimer-section .section-title i {
            color: var(--primary);
            font-size: 1.4rem;
        }
.disclaimer-body {
            color: var(--text);
            line-height: 1.9;
            font-size: .98rem;
        }
.disclaimer-body p {
            margin-bottom: 1.2rem;
        }
.disclaimer-body strong {
            color: var(--primary);
            font-weight: 600;
        }
.disclaimer-body ul {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
.disclaimer-body li {
            margin-bottom: .6rem;
            position: relative;
            padding-left: .4rem;
        }
.disclaimer-body li::before {
            content: "▸";
            color: var(--accent);
            position: absolute;
            left: -1.2rem;
            font-size: 1rem;
        }
.notice-box {
            background: rgba(56,189,248,.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
        }
.notice-box p {
            margin-bottom: 0;
            font-size: .95rem;
        }
.notice-box i {
            color: var(--primary);
            margin-right: 8px;
        }
.update-date {
            font-family: var(--mono);
            font-size: .85rem;
            color: rgba(226,232,240,.6);
            display: inline-block;
            background: rgba(167,139,250,.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 1rem;
            border: 1px solid rgba(167,139,250,.2);
        }
.disclaimer-hero { padding: 100px 0 40px; }
.disclaimer-hero h1 { font-size: 2rem; }
.disclaimer-section .section-title { font-size: 1.3rem; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 可能带来的白底黑字，确保与本站深色风格一致 */
        .card, .card-body, .list-group-item, .accordion-item, .accordion-button, .accordion-body {
            background: var(--card-bg);
            color: var(--text);
            border-color: var(--border-color);
        }
.form-control, .form-select {
            background: rgba(0,0,0,.35);
            color: var(--text);
            border-color: var(--border-color);
        }
.form-control::placeholder {
            color: rgba(255,255,255,.45);
        }
.modal-content, .dropdown-menu {
            background: var(--card-bg);
            color: var(--text);
            border-color: var(--border-color);
        }
/* 隐私页特有样式 */
        .privacy-hero {
            padding: 3rem 0 2rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 2rem;
        }
.privacy-section {
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 1.8rem 1.8rem;
            margin-bottom: 1.8rem;
            backdrop-filter: blur(4px);
        }
.privacy-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
.privacy-section p, .privacy-section li {
            color: var(--text);
            line-height: 1.7;
        }
.privacy-section ul, .privacy-section ol {
            padding-left: 1.2rem;
        }
.privacy-section a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
.muted-text {
            color: rgba(226, 232, 240, 0.7);
            font-size: 0.9rem;
        }
.badge-pill-custom {
            background: var(--accent);
            color: #0f172a;
            font-weight: 600;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
        }
.privacy-footer-note {
            border-top: 1px solid var(--border-color);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            color: rgba(226, 232, 240, 0.6);
        }