* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        :root {
            --primary: #ff6b35;
            --secondary: #00a8e8;
            --dark: #2c3e50;
            --light: #ffffff;
            --light-bg: #f8f9fa;
            --medium: #6c757d;
            --accent1: #ff9e00;
            --accent2: #00d4aa;
            --accent3: #9d4edd;
            --card-bg: #ffffff;
            --text-primary: #2c3e50;
            --text-secondary: #6c757d;
            --border: #e9ecef;
        }

        body {
            background-color: var(--light);
            color: var(--text-primary);
            min-height: 100vh;
            overflow-x: hidden;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏样式 */
        header {
            padding: 20px 0;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 28px;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary), var(--accent1));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
            cursor: pointer;
        }

        .logo span {
            color: var(--secondary);
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 35px;
        }

        .nav-links a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            position: relative;
            padding: 5px 0;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a.active::after {
            width: 100%;
        }

        /* 主内容区域 */
        .hero {
            padding: 180px 0 100px;
            position: relative;
            text-align: center;
            background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 50%, rgba(255, 107, 53, 0.05) 0%, transparent 50%);
            z-index: -1;
        }

        .hero h1 {
            font-size: 4.5rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            text-transform: uppercase;
            background: linear-gradient(90deg, var(--dark) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero p {
            font-size: 1.3rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
        }

        .btn {
            padding: 16px 40px;
            font-size: 18px;
            font-weight: 700;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            text-transform: uppercase;
            letter-spacing: 1px;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(90deg, var(--primary), var(--accent1));
            color: white;
            box-shadow: 0 5px 15px rgba(255, 107, 53, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }

        .btn-secondary:hover {
            background-color: var(--secondary);
            color: white;
            transform: translateY(-5px);
        }

        /* 运动者展示区 */
        .sports-showcase {
            display: flex;
            gap: 30px;
            margin-top: 100px;
            align-items: center;
        }

        .sports-text {
            flex: 1;
            text-align: left;
        }

        .sports-text h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .sports-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 1.1rem;
            margin-bottom: 25px;
        }

        .sports-images {
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .sports-img {
            border-radius: 15px;
            overflow: hidden;
            height: 300px;
            position: relative;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.5s ease, box-shadow 0.3s ease;
            border: 1px solid var(--border);
        }

        .sports-img:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }

        .sports-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .sports-img::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, transparent 50%);
        }

        .sports-img .img-label {
            position: absolute;
            bottom: 20px;
            left: 20px;
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            z-index: 2;
        }

        /* 统计卡片 */
        .stats-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-top: 100px;
        }

        .stat-card {
            background-color: var(--card-bg);
            border-radius: 15px;
            padding: 40px 25px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .stat-card:hover {
            transform: translateY(-10px);
            border-color: rgba(255, 107, 53, 0.2);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .stat-card:nth-child(1) {
            border-top: 5px solid var(--primary);
        }

        .stat-card:nth-child(2) {
            border-top: 5px solid var(--secondary);
        }

        .stat-card:nth-child(3) {
            border-top: 5px solid var(--accent2);
        }

        .stat-card:nth-child(4) {
            border-top: 5px solid var(--accent1);
        }

        .stat-number {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: 10px;
        }

        .stat-card:nth-child(1) .stat-number {
            color: var(--primary);
        }

        .stat-card:nth-child(2) .stat-number {
            color: var(--secondary);
        }

        .stat-card:nth-child(3) .stat-number {
            color: var(--accent2);
        }

        .stat-card:nth-child(4) .stat-number {
            color: var(--accent1);
        }

        .stat-label {
            font-size: 1.1rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* 功能区域 */
        .features-section {
            margin-top: 120px;
            padding: 60px 0;
            background-color: var(--light-bg);
            border-radius: 20px;
        }

        .section-title {
            text-align: center;
            font-size: 2.8rem;
            margin-bottom: 50px;
            color: var(--dark);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-card {
            background-color: var(--card-bg);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid var(--border);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            font-size: 3rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .feature-card p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 页脚 */
        footer {
            margin-top: 120px;
            padding: 60px 0 40px;
            background-color: var(--dark);
            color: #fff;
            text-align: center;
        }

        footer .logo {
            background: linear-gradient(90deg, #fff, var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        footer p {
            margin-top: 20px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .copyright {
            margin-top: 40px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* 动画元素 */
        .floating {
            animation: floating 3s ease-in-out infinite;
        }

        @keyframes floating {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-15px); }
            100% { transform: translateY(0px); }
        }

        .pulse {
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4); }
            70% { box-shadow: 0 0 0 15px rgba(255, 107, 53, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0); }
        }

        /* 响应式设计 */
        @media (max-width: 1100px) {
            .hero h1 {
                font-size: 3.5rem;
            }
            
            .stats-container {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .navbar {
                flex-direction: column;
                gap: 20px;
            }
            
            .nav-links {
                gap: 20px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .hero {
                padding: 200px 0 80px;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .sports-showcase {
                flex-direction: column;
            }
            
            .sports-images {
                width: 100%;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .stats-container {
                grid-template-columns: 1fr;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .sports-img {
                height: 250px;
            }
            
            .section-title {
                font-size: 2rem;
            }
        }