:root {
            --primary: #2563eb;
            --accent: #06b6d4;
            --bg: #f8fafc;
            --text: #0f172a;
            --radius-lg: 22px;
            --radius-md: 16px;
            --shadow-soft: 0 20px 40px -12px rgba(37, 99, 235, 0.12), 0 8px 24px -6px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 30px 50px -15px rgba(37, 99, 235, 0.2), 0 12px 30px -8px rgba(15, 23, 42, 0.12);
            --font-serif: "Inter", "Noto Serif SC", "Songti SC", SimSun, serif;
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        * { box-sizing: border-box; }
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.7;
            letter-spacing: 0.01em;
            overflow-x: hidden;
            position: relative;
        }
        h1,h2,h3,h4,h5,.brand-font {
            font-family: var(--font-serif);
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        /* 渐变光晕背景装饰 */
        .glow-blob {
            position: fixed;
            top: -10%;
            left: -5%;
            width: 60vw;
            height: 60vw;
            background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, rgba(6,182,212,0.03) 60%, transparent 100%);
            filter: blur(90px);
            z-index: -1;
            pointer-events: none;
        }
        .glow-blob-2 {
            position: fixed;
            bottom: -10%;
            right: -5%;
            width: 55vw;
            height: 55vw;
            background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, rgba(37,99,235,0.02) 60%, transparent 100%);
            filter: blur(100px);
            z-index: -1;
            pointer-events: none;
        }
        /* 导航 */
        .navbar-bao {
            backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.7);
            border-bottom: 1px solid rgba(15, 23, 42, 0.04);
            padding: 0.8rem 0;
            box-shadow: 0 6px 16px -8px rgba(0,0,0,0.05);
        }
        .navbar-bao .navbar-brand {
            font-family: var(--font-serif);
            font-weight: 900;
            font-size: 1.9rem;
            color: var(--text);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .navbar-bao .navbar-brand i {
            color: var(--primary);
            font-size: 2rem;
        }
        .navbar-bao .nav-link {
            font-weight: 600;
            color: var(--text);
            padding: 0.6rem 1.1rem !important;
            border-radius: 40px;
            transition: all 0.2s ease;
        }
        .navbar-bao .nav-link:hover {
            background: rgba(37,99,235,0.06);
            color: var(--primary);
        }
        .navbar-toggler {
            border: none;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        /* Hero */
        .hero-section {
            padding: 6rem 0 4.5rem;
            position: relative;
        }
        .hero-title {
            font-size: clamp(2.8rem, 8vw, 4.8rem);
            line-height: 1.15;
            font-weight: 900;
            letter-spacing: -0.03em;
            margin-bottom: 1.5rem;
            max-width: 900px;
        }
        .hero-sub {
            font-size: 1.3rem;
            color: #475569;
            max-width: 600px;
            font-weight: 400;
            margin-bottom: 2.5rem;
        }
        .btn-hero {
            padding: 0.9rem 2.5rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1.1rem;
            border: none;
            transition: all 0.25s ease;
            box-shadow: 0 8px 20px -6px rgba(37,99,235,0.2);
        }
        .btn-hero-primary {
            background: var(--primary);
            color: white;
            margin-right: 0.8rem;
        }
        .btn-hero-primary:hover {
            background: #1d4ed8;
            transform: translateY(-3px);
            box-shadow: 0 15px 30px -10px rgba(37,99,235,0.4);
        }
        .btn-hero-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--primary);
            box-shadow: none;
        }
        .btn-hero-outline:hover {
            background: rgba(37,99,235,0.05);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        /* 时间线/步骤条 */
        .timeline-section {
            padding: 3rem 0 5rem;
        }
        .timeline-container {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            position: relative;
        }
        .timeline-item {
            background: white;
            border-radius: var(--radius-lg);
            padding: 2rem 2rem 1.8rem;
            box-shadow: var(--shadow-soft);
            flex: 1 1 260px;
            border: 1px solid rgba(15, 23, 42, 0.03);
            transition: transform 0.25s ease, border-color 0.25s, box-shadow 0.3s;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s;
        }
        .timeline-item.show {
            opacity: 1;
            transform: translateY(0);
        }
        .timeline-item:hover {
            transform: translateY(-5px) scale(1.01);
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            font-family: var(--font-serif);
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 1.5rem;
        }
        .timeline-item h5 {
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
        }
        .timeline-item p {
            color: #334155;
            font-size: 0.98rem;
        }
        .timeline-connector {
            display: none;
        }
        @media(min-width: 992px) {
            .timeline-container {
                position: relative;
            }
            .timeline-container::before {
                content: "";
                position: absolute;
                top: 45px;
                left: 0;
                width: 100%;
                height: 2px;
                background: linear-gradient(90deg, var(--primary), var(--accent));
                opacity: 0.2;
            }
            .timeline-item {
                background: white;
                margin-top: 0;
            }
        }
        /* 长文介绍 */
        .intro-text-section {
            padding: 3rem 0;
        }
        .intro-card {
            background: white;
            border-radius: 28px;
            padding: 3rem 2.5rem;
            box-shadow: var(--shadow-soft);
            border: 1px solid rgba(255,255,255,0.7);
        }
        .section-tag {
            display: inline-block;
            background: rgba(37,99,235,0.1);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            margin-bottom: 1.5rem;
        }
        /* 对比表格 */
        .compare-section {
            padding: 3rem 0;
        }
        .compare-table-wrap {
            background: white;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-soft);
            padding: 2rem;
            overflow-x: auto;
        }
        .table {
            margin-bottom: 0;
        }
        .table th {
            border: none;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.2rem;
            padding: 1rem;
            background: rgba(37,99,235,0.02);
            border-bottom: 2px solid rgba(37,99,235,0.1);
        }
        .table td {
            padding: 1.2rem 1rem;
            border-bottom: 1px solid rgba(15,23,42,0.04);
            vertical-align: middle;
        }
        .table-striped>tbody>tr:nth-of-type(odd)>* {
            background: rgba(6,182,212,0.02);
        }
        /* FAQ */
        .faq-section {
            padding: 3rem 0;
        }
        .faq-item {
            background: white;
            border-radius: 22px;
            padding: 1.8rem 2rem;
            box-shadow: var(--shadow-soft);
            margin-bottom: 1.2rem;
            transition: 0.2s;
            border-left: 4px solid var(--primary);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.25rem;
            font-family: var(--font-serif);
            margin-bottom: 0.5rem;
        }
        .faq-answer {
            color: #334155;
            padding-left: 0.5rem;
        }
        /* 特色区 (再次使用卡片列表) */
        .feature-section {
            padding: 3rem 0 5rem;
        }
        .feature-card {
            background: white;
            border-radius: 24px;
            padding: 2.2rem 1.8rem;
            text-align: center;
            box-shadow: var(--shadow-soft);
            height: 100%;
            transition: transform 0.25s, border-color 0.25s;
            border: 1px solid transparent;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.2s, box-shadow 0.2s;
        }
        .feature-card.show {
            opacity: 1;
            transform: translateY(0);
        }
        .feature-card:hover {
            border-color: var(--primary);
            transform: scale(1.02);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            display: block;
        }
        .btn-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 16px 30px -10px rgba(37,99,235,0.4);
            transition: all 0.2s;
        }
        .btn-cta:hover {
            transform: translateY(-4px);
            box-shadow: 0 25px 40px -12px rgba(37,99,235,0.5);
        }
        /* 友链 */
        .friend-links {
            padding: 3rem 0;
            border-top: 1px solid rgba(15,23,42,0.05);
        }
        .footer-links a {
            color: #475569;
            text-decoration: none;
            margin: 0 0.5rem;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        /* 页脚 */
        footer {
            padding: 2rem 0 3rem;
            background: white;
        }
        /* 滚动渐显 */
        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.3, 1), transform 0.6s cubic-bezier(0.2, 0.7, 0.3, 1);
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .delay-1 { transition-delay: 0.08s; }
        .delay-2 { transition-delay: 0.18s; }
        .delay-3 { transition-delay: 0.28s; }
        .delay-4 { transition-delay: 0.38s; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 组件，确保配色与站点一致 */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
            background: var(--bg);
            color: var(--text);
            border-color: rgba(15, 23, 42, 0.1);
        }
.form-control, .form-select {
            background: rgba(255,255,255,0.8);
            color: var(--text);
            border-color: rgba(15, 23, 42, 0.2);
        }
.form-control::placeholder {
            color: rgba(15, 23, 42, 0.5);
        }
.list-group-item, .accordion-item, .accordion-button, .accordion-body {
            background: var(--bg);
            color: var(--text);
            border-color: rgba(15, 23, 42, 0.1);
        }
/* 本页微调 */
        .about-hero {
            padding: 4rem 0 2rem;
        }
.section-gap {
            padding: 3rem 0;
        }
.timeline-item .step-number {
            background: var(--primary);
        }
/* 小标题颜色 */
        h2, h3 {
            color: var(--text);
            font-weight: 700;
        }
/* 页脚占位 */
        .footer-links a {
            color: var(--text);
            margin-right: 1.5rem;
        }
.brand-strong {
            font-weight: 800;
            letter-spacing: -0.01em;
        }

/* --- 子页面追加 --- */
.disclaimer-hero {
            padding: 6rem 0 3rem;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
.disclaimer-hero h1 {
            font-family: var(--font-serif);
            font-weight: 800;
            color: var(--text);
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
.disclaimer-hero .lead {
            color: rgba(15, 23, 42, 0.7);
            font-size: 1.05rem;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.8;
        }
.disclaimer-content {
            padding: 3rem 0 4rem;
            background: var(--bg);
        }
.disclaimer-section {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-soft);
            border: 1px solid rgba(37, 99, 235, 0.06);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
.disclaimer-section:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
.disclaimer-section h2 {
            font-family: var(--font-serif);
            font-weight: 700;
            color: var(--text);
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
.disclaimer-section h2 i {
            color: var(--primary);
            font-size: 1.2rem;
        }
.disclaimer-section p, .disclaimer-section li {
            color: rgba(15, 23, 42, 0.75);
            line-height: 1.9;
            font-size: 0.95rem;
        }
.disclaimer-section ul {
            padding-left: 1.2rem;
            margin-bottom: 1rem;
        }
.disclaimer-section li {
            margin-bottom: 0.6rem;
        }
.disclaimer-section strong {
            color: var(--text);
            font-weight: 600;
        }
.disclaimer-notice {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(6, 182, 212, 0.05));
            border-left: 4px solid var(--primary);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
        }
.disclaimer-notice p {
            margin-bottom: 0.5rem;
        }
.disclaimer-notice p:last-child {
            margin-bottom: 0;
        }
.last-updated {
            text-align: center;
            color: rgba(15, 23, 42, 0.5);
            font-size: 0.9rem;
            margin-top: 2.5rem;
            font-weight: 400;
        }
.disclaimer-hero { padding: 4.5rem 0 2.5rem; }
.disclaimer-section { padding: 1.5rem; }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .sitemap-section { padding: 80px 0; }
.sitemap-section-alt { background: rgba(37, 99, 235, 0.03); }
.sitemap-hero { padding: 120px 0 60px; text-align: center; position: relative; }
.sitemap-hero .hero-title { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; }
.sitemap-hero .hero-sub { font-size: 1.15rem; color: rgba(15, 23, 42, 0.7); max-width: 640px; margin: 0 auto; }
.sitemap-card { background: var(--bg); border: 1px solid rgba(37, 99, 235, 0.08); border-radius: var(--radius-md); padding: 28px; height: 100%; transition: all .3s ease; box-shadow: var(--shadow-soft); }
.sitemap-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.2); }
.sitemap-card .icon-wrap { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 16px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; }
.sitemap-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.sitemap-card p { font-size: .9rem; color: rgba(15, 23, 42, 0.65); line-height: 1.6; margin-bottom: 14px; }
.sitemap-card ul { list-style: none; padding: 0; margin: 0; }
.sitemap-card ul li { padding: 4px 0; font-size: .88rem; }
.sitemap-card ul li a { color: var(--primary); text-decoration: none; transition: color .2s; }
.sitemap-card ul li a:hover { color: var(--accent); }
.sitemap-card ul li i { font-size: .7rem; margin-right: 6px; color: var(--accent); }
.quick-links-wrap { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.quick-links-wrap a { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: rgba(37, 99, 235, 0.06); border-radius: 10px; font-size: .88rem; color: var(--text); text-decoration: none; transition: all .2s; }
.quick-links-wrap a:hover { background: rgba(37, 99, 235, 0.12); color: var(--primary); transform: translateX(4px); }
.quick-links-wrap a i { color: var(--primary); font-size: .8rem; }
.section-tag-sitemap { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, rgba(37, 99, 235, .1), rgba(6, 182, 212, .1)); color: var(--primary); font-size: .82rem; font-weight: 600; padding: 6px 16px; border-radius: 30px; margin-bottom: 18px; letter-spacing: .5px; }
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.sitemap-hero { padding: 100px 0 40px; }
.sitemap-hero .hero-title { font-size: 2rem; }
.sitemap-section { padding: 50px 0; }
.sitemap-grid { grid-template-columns: 1fr; }