* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            background: #f0f5fa;
            font-family: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Roboto, sans-serif;
            color: #102a41;
            line-height: 1.5;
        }
        a {
            text-decoration: none;
            color: #1b6bb0;
        }
        /* 导航菜单 */
        .navbar {
            background: #022b46;
            color: white;
            padding: 0.8rem 5%;
            /*position: sticky;*/
            top: 0;
            z-index: 99;
            box-shadow: 0 8px 20px -10px #001d33;
        }
        .nav-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(145deg, #ffd966, #ffffff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .nav-links {
            display: flex;
            gap: 1.8rem;
            flex-wrap: wrap;
            font-weight: 500;
        }
        .nav-links a {
            color: #ebf3ff;
            font-size: 1.1rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-links a:hover {
            border-bottom-color: #f9c74f;
            color: #f9c74f;
        }
        /* banner */
        .hero {
            background: linear-gradient(115deg, #003153 0%, #1b4b6c 100%);
            color: white;
            padding: 3rem 5% 4rem;
            text-align: center;
            clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            text-shadow: 0 5px 12px #00000040;
        }
        .hero p {
            font-size: 1.6rem;
            margin: 1rem 0 2rem;
            opacity: 0.9;
        }
        .hero-badge {
            display: inline-block;
            background: #f9c74f;
            color: #022b46;
            font-weight: 700;
            padding: 0.6rem 2rem;
            border-radius: 40px;
            font-size: 1.2rem;
            box-shadow: 0 10px 20px #00000030;
        }
        .hero-badge strong {
            color: #a61b2b;
        }
        /* 主容器 */
        .main-wrap {
            max-width: 1400px;
            margin: -2rem auto 0;
            padding: 0 5% 2rem;
            position: relative;
            z-index: 5;
        }
        /* 八个板块 采用2-2-2-2 网格 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
            margin: 2.5rem 0;
        }
        @media (max-width: 800px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        .feature-card {
            background: white;
            border-radius: 32px;
            padding: 2rem 2rem 2rem 2rem;
            box-shadow: 0 30px 35px -20px rgba(0,35,60,0.3);
            border: 1px solid #dcebf8;
            transition: all 0.2s;
        }
        .feature-card:hover {
            transform: scale(1.01);
            border-color: #f1c40f;
        }
        .card-header {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1.4rem;
        }
        .card-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #022b46;
            border-left: 10px solid #f1c40f;
            padding-left: 1rem;
        }
        .card-content {
            font-size: 1.05rem;
            color: #173e5c;
        }
        .card-content p {
            margin: 1rem 0;
        }
        .kw-highlight {
            background: #fef4d9;
            font-weight: 700;
            padding: 0.1rem 0.3rem;
            border-radius: 8px;
            color: #b64926;
        }
        strong, b {
            color: #003b6f;
            font-weight: 650;
        }
        .inner-link {
            display: inline-block;
            margin-top: 1rem;
            background: #e7f0fd;
            padding: 0.4rem 1.4rem;
            border-radius: 30px;
            font-weight: 500;
            border: 1px solid #8bb9e0;
        }
        /* 底部faq及平台 */
        .footer-area {
            background: #011e31;
            color: #deecfb;
            padding: 3rem 5% 2rem;
            border-radius: 70px 70px 0 0;
            margin-top: 3.5rem;
        }
        .faq-block {
            max-width: 1300px;
            margin: 0 auto;
        }
        .faq-block h3 {
            font-size: 2.5rem;
            color: white;
            text-align: center;
            margin-bottom: 2rem;
            font-weight: 600;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.8rem;
        }
        .faq-card {
            background: #0a3149;
            padding: 1.5rem 2rem;
            border-radius: 50px 20px 50px 20px;
            border-left: 7px solid #f9c74f;
        }
        .faq-q {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffdb7e;
            margin-bottom: 0.6rem;
        }
        .faq-a {
            color: #bdd5f0;
        }
        .faq-a strong {
            color: #ffd966;
        }
        .platform-section {
            max-width: 1300px;
            margin: 2.5rem auto 0;
            text-align: center;
        }
        .platform-section h4 {
            font-size: 2rem;
            color: white;
            margin-bottom: 1.2rem;
        }
        .button-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.3rem;
        }
        .plat-btn {
            background: #0b3b5a;
            border: 2px solid #f9c74f;
            color: white;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            font-size: 1.3rem;
            font-weight: 700;
            min-width: 150px;
            box-shadow: 0 5px 0 #001a2b;
            transition: 0.15s;
        }
        .plat-btn:hover {
            background: #f9c74f;
            color: #011e31;
            transform: translateY(-3px);
            box-shadow: 0 8px 0 #001a2b;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid #23587a;
            color: #95bde0;
        }
        .copyright a {
            color: #f9c74f;
        }
        /* 锚点偏移修正 */
        .anchor {
            scroll-margin-top: 100px;
        }