* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #ffffff;
            color: #1e293b;
            line-height: 1.5;
            scroll-behavior: smooth;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 20px;
            border-bottom: 1px solid #e9eef3;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #1e2b3c, #2b5f8a);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.3px;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #334155;
            transition: color 0.2s;
            font-size: 1rem;
        }

        .nav-links a:hover {
            color: #2b5f8a;
        }

        .nav-links .active {
            color: #2b5f8a;
            border-bottom: 2px solid #2b5f8a;
            padding-bottom: 4px;
        }

        .btn-primary {
            display: inline-block;
            background-color: #1e4a76;
            color: white;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 40px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }

        .btn-primary:hover {
            background-color: #0f3a5c;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            border: 1.5px solid #1e4a76;
            color: #1e4a76;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 40px;
            text-decoration: none;
            transition: 0.2s;
        }

        .btn-outline:hover {
            background-color: #eef4ff;
        }

        .hero {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 60px 0 40px;
            gap: 40px;
        }

        .hero-content {
            flex: 1;
            min-width: 280px;
        }

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(to right, #0f2b3d, #2b6a9f);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }

        .hero-content p {
            font-size: 1.2rem;
            color: #475569;
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            flex: 0.9;
            background: #f8fafc;
            border-radius: 36px;
            padding: 32px;
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.08);
            border: 1px solid #eef2f6;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }

        .feature-item {
            text-align: center;
            padding: 12px;
        }

        .feature-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
        }

        .feature-item h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: #0f2b3d;
        }

        .feature-item p {
            font-size: 0.9rem;
            color: #5b6e8c;
        }

        .features-showcase {
            padding: 64px 0;
            border-top: 1px solid #eef2f6;
        }

        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 48px;
            color: #0f2b3d;
        }

        .cards {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
        }

        .card {
            background: #ffffff;
            border-radius: 32px;
            padding: 32px 24px;
            flex: 1;
            min-width: 240px;
            box-shadow: 0 12px 30px rgba(0,0,0,0.05);
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid #eef2f8;
            text-align: center;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 35px rgba(0,0,0,0.1);
        }

        .card-icon {
            font-size: 2.8rem;
            margin-bottom: 20px;
        }

        .card h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
            color: #1e4a76;
        }

        .card p {
            color: #4a5a7a;
        }

        .download-area {
            background: linear-gradient(120deg, #f0f6fe, #ffffff);
            border-radius: 48px;
            padding: 56px 32px;
            text-align: center;
            margin: 40px 0 60px;
            border: 1px solid #e2edf7;
        }

        .download-area h2 {
            font-size: 2rem;
            margin-bottom: 16px;
        }

        .download-badge {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: #1e2f3c;
            padding: 12px 28px;
            border-radius: 60px;
            color: white;
            margin-top: 20px;
            font-weight: 500;
        }

        .appstore-link {
            display: inline-block;
            margin-top: 28px;
        }

        .faq-preview {
            padding: 40px 0 60px;
        }

        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid #e2e8f0;
            padding: 20px 0;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: #0f2b3d;
        }

        .faq-answer {
            color: #4a5a7a;
        }

        .more-link {
            text-align: center;
            margin-top: 28px;
        }

        .footer {
            background-color: #f9fbfd;
            border-top: 1px solid #e9edf2;
            padding: 40px 0 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.85rem;
            color: #6c7a91;
        }

        /* 新增创意板块样式 — 完全延续原风格 */
        .creative-section {
            padding: 60px 0;
            border-top: 1px solid #eef2f6;
        }
        .rule-showcase {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        .rule-text {
            flex: 1;
        }
        .rule-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #0f2b3d;
        }
        .rule-text ul {
            list-style: none;
        }
        .rule-text li {
            margin-bottom: 16px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .rule-icon {
            font-size: 1.8rem;
        }
        .rule-visual {
            flex: 1;
            background: #f0f6fe;
            border-radius: 40px;
            padding: 32px;
            text-align: center;
            box-shadow: inset 0 2px 8px rgba(0,0,0,0.02);
        }
        .protocol-badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin: 24px 0;
        }
        .protocol-badge {
            background: white;
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 600;
            color: #1e4a76;
            box-shadow: 0 2px 6px rgba(0,0,0,0.03);
            border: 1px solid #d9e2ef;
        }
        .steps-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 30px;
        }
        .step {
            flex: 1;
            min-width: 160px;
            background: white;
            border-radius: 28px;
            padding: 28px 20px;
            text-align: center;
            box-shadow: 0 12px 24px -8px rgba(0,0,0,0.06);
            border: 1px solid #eef2f8;
        }
        .step-number {
            background: #1e4a76;
            color: white;
            width: 48px;
            height: 48px;
            border-radius: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-weight: 700;
            font-size: 1.5rem;
        }
        .testimonials {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 20px;
        }
        .testimonial {
            flex: 1;
            background: #fbfdff;
            border-radius: 28px;
            padding: 28px;
            border: 1px solid #e6edf6;
        }
        .rating {
            color: #fbbf24;
            font-size: 1.5rem;
            letter-spacing: 4px;
            margin-bottom: 10px;
        }
        .download-float-cta {
            text-align: center;
            margin: 30px 0 10px;
        }
        .btn-large {
            padding: 16px 42px;
            font-size: 1.25rem;
        }
        @media (max-width: 768px) {
            .hero {
                flex-direction: column;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .navbar {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                gap: 20px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .rule-showcase {
                flex-direction: column;
            }
        }
        .trust-badge {
            display: inline-block;
            background: #eef4ff;
            padding: 6px 18px;
            border-radius: 40px;
            color: #1e4a76;
            font-weight: 500;
            margin-bottom: 16px;
            font-size: 0.9rem;
        }
        .star-rating {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }