*, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f8fafc;
            color: #0f172a;
            line-height: 1.75;
            letter-spacing: 0.02em;
        }
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 76px;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            z-index: 1000;
            display: flex;
            align-items: center;
        }
        .nav-container {
            width: 100%;
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
        }
        .nav-logo img {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            object-fit: cover;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        .nav-logo-text {
            font-size: 24px;
            font-weight: 800;
            color: #0f172a;
            letter-spacing: -0.03em;
        }
        .nav-badge {
            background-color: #f0fdf4;
            color: #16a34a;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 20px;
            font-weight: 600;
            border: 1px solid #bbf7d0;
        }
        .nav-links {
            display: flex;
            gap: 40px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            text-decoration: none;
            color: #4a5568;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            padding: 6px 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #2563eb;
            transition: width 0.2s ease;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #2563eb;
        }

        /* 页面头部 */
        .guide-hero {
            padding: 160px 24px 60px 24px;
            max-width: 1320px;
            margin: 0 auto;
            text-align: center;
        }
        .guide-hero h1 {
            font-size: 42px;
            font-weight: 900;
            color: #0f172a;
            letter-spacing: -0.04em;
            margin: 0 0 20px 0;
            line-height: 1.3;
        }
        .guide-hero .subtitle {
            font-size: 18px;
            color: #475569;
            margin-bottom: 32px;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 32px;
            font-size: 14px;
            color: #64748b;
            font-weight: 600;
            flex-wrap: wrap;
        }

        /* 创意时间轴容器 */
        .timeline-container {
            max-width: 1000px;
            margin: 0 auto 120px auto;
            padding: 0 24px;
            position: relative;
        }
        .timeline-container::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 44px;
            width: 4px;
            background: linear-gradient(to bottom, #2563eb, #3b82f6, #cbd5e1);
            border-radius: 2px;
        }

        .timeline-block {
            position: relative;
            margin-bottom: 80px;
            padding-left: 90px;
        }
        .timeline-block:last-child {
            margin-bottom: 0;
        }

        .timeline-badge {
            position: absolute;
            left: 24px;
            top: 0;
            width: 44px;
            height: 44px;
            background: #ffffff;
            border: 4px solid #2563eb;
            color: #2563eb;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
            z-index: 10;
        }

        .timeline-content {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.01);
            transition: border-color 0.3s ease;
        }
        .timeline-block:hover .timeline-content {
            border-color: #cbd5e1;
        }

        .timeline-content h2 {
            font-size: 24px;
            font-weight: 800;
            color: #0f172a;
            margin: 0 0 24px 0;
            letter-spacing: -0.02em;
        }
        .timeline-content p {
            font-size: 16px;
            color: #334155;
            margin-bottom: 24px;
            text-align: justify;
        }
        .timeline-content ul,
        .timeline-content ol {
            margin-bottom: 24px;
            padding-left: 20px;
            color: #334155;
        }
        .timeline-content li {
            margin-bottom: 10px;
            font-size: 15px;
        }

        .code-block {
            background-color: #0f172a;
            color: #f8fafc;
            padding: 24px;
            border-radius: 16px;
            font-family: Consolas, Monaco, monospace;
            font-size: 14px;
            overflow-x: auto;
            margin-bottom: 24px;
            border: 1px solid #1e293b;
            line-height: 1.55;
        }
        .guide-image {
            width: 100%;
            height: auto;
            min-height: 280px;
            background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
            border: 1px solid #cbd5e1;
            border-radius: 16px;
            margin: 28px 0;
            display: block;
            object-fit: cover;
        }
        .note-box {
            background-color: #eff6ff;
            border-left: 4px solid #3b82f6;
            padding: 24px;
            border-radius: 0 16px 16px 0;
            margin-bottom: 24px;
            font-size: 15px;
            color: #1e3a8a;
        }
        .note-box p {
            margin: 0;
            color: #1e3a8a;
        }

        .faq-mini-section {
            max-width: 1000px;
            margin: 0 auto 100px auto;
            padding: 0 24px;
        }
        .faq-mini-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .faq-mini-card {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: 20px;
            padding: 28px;
            text-decoration: none;
            color: inherit;
            transition: all 0.2s ease;
            display: block;
        }
        .faq-mini-card:hover {
            border-color: #2563eb;
            background: #f8fafc;
        }
        .faq-mini-card h5 {
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 8px 0;
            color: #0f172a;
        }
        .faq-mini-card p {
            font-size: 14px;
            color: #4a5568;
            margin: 0;
            line-height: 1.6;
        }

        .footer {
            background-color: #0b0f19;
            color: #94a3b8;
            padding: 80px 24px 40px 24px;
            font-size: 14px;
            border-top: 1px solid #1e293b;
        }
        .footer-inner {
            max-width: 1272px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.6fr repeat(3, 1fr);
            gap: 60px;
            margin-bottom: 60px;
        }
        .footer-brand h4 {
            color: #ffffff;
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 20px 0;
            letter-spacing: -0.02em;
        }
        .footer-brand p {
            line-height: 1.7;
            margin: 0;
            font-size: 14px;
            color: #64748b;
        }
        .footer-col h5 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 20px 0;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.15s ease;
            font-weight: 500;
        }
        .footer-col ul li a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            max-width: 1272px;
            margin: 0 auto;
            padding-top: 36px;
            border-top: 1px solid #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
            color: #475569;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .nav-container {
                padding: 0;
            }
            .nav-links {
                display: none;
            }
            .guide-hero {
                padding-top: 130px;
                padding-left: 0;
                padding-right: 0;
            }
            .guide-hero h1 {
                font-size: 30px;
            }
            .meta-info {
                flex-direction: column;
                gap: 10px;
                align-items: center;
            }
            .timeline-container {
                padding: 0;
            }
            .timeline-container::before {
                left: 20px;
            }
            .timeline-block {
                padding-left: 50px;
                margin-bottom: 50px;
            }
            .timeline-badge {
                left: 3px;
                width: 38px;
                height: 38px;
                font-size: 14px;
            }
            .timeline-content {
                padding: 28px;
                border-radius: 20px;
            }
            .faq-mini-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }