/* 页面特定样式 */
        .hero-section {
            height: 60vh;
            min-height: 500px;
        }

        .hero-title {
            font-size: 56px;
        }

        /* 优势板块调整 */
        .features-section {
            width: 100%;
            max-width: none;
            padding: 100px 0;
            background: #fff;
        }

        .features-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 40px;
        }

        .features-section .section-title {
            color: #1a1a1a;
        }

        .features-section .section-subtitle {
            color: #64748b;
        }

        .features-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            width: 100%;
        }

        .feature-item {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            padding: 40px;
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            transform: translateY(-5px);
            background: #ffffff;
            border-color: #2563eb;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

        .feature-title {
            color: #1a1a1a;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .feature-desc {
            color: #64748b;
            line-height: 1.6;
            font-size: 16px;
        }

        /* 精选平台板块 */
        .featured-platforms-section {
            width: 100%;
            padding: 100px 0;
            background: #f8fafc;
        }

        .featured-platforms-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 40px;
        }

        .platform-category {
            margin-bottom: 60px;
        }

        .platform-category:last-child {
            margin-bottom: 0;
        }

        .category-header {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
        }

        .category-indicator {
            width: 6px;
            height: 28px;
            background-color: #2563eb;
            margin-right: 15px;
            border-radius: 3px;
            box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
        }

        .category-title {
            font-size: 24px;
            font-weight: 700;
            color: #1a1a1a;
        }

        .platform-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 24px;
        }

        .platform-card {
            background: #fff;
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            padding: 24px;
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .platform-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: #2563eb;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .platform-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
            border-color: #2563eb;
        }

        .platform-card:hover::before {
            opacity: 1;
        }

        .platform-icon {
            font-size: 32px;
            margin-right: 20px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease;
        }
        .platform-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        .platform-card:hover .platform-icon {
            transform: scale(1.1);
        }

        .platform-name {
            font-size: 18px;
            font-weight: 600;
            color: #333;
        }

        /* 所有合作伙伴 Logo 墙 */
        .all-partners-section {
            padding: 100px 40px;
            max-width: 1400px;
            margin: 0 auto;
            background: #fff;
        }

        .channels-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            gap: 24px;
            margin-top: 50px;
        }

        .channel-item {
            background: #ffffff;
            border-radius: 12px;
            padding: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid #f1f5f9;
            aspect-ratio: 1;
        }

        .channel-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            border-color: #2563eb;
        }

        .channel-logo {
            max-width: 80%;
            max-height: 80%;
            object-fit: contain;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: all 0.3s ease;
        }

        .channel-item:hover .channel-logo {
            filter: grayscale(0%);
            opacity: 1;
            transform: scale(1.1);
        }
        
        /* 导航栏样式补充 (防止 CSS 加载问题) */
        .nav-actions a, .logo-section { text-decoration: none; }
        .btn-login .btn-text, .btn-signup .btn-text { padding: 12px 24px; display: block; }
        .btn-signup, .btn-login { padding: 0px; }
        .nav-menu .nav-item { transition: all 0.3s ease; position: relative; }
        .nav-menu .nav-item:hover { color: #2563eb; transform: translateY(-2px); }
        .nav-menu .nav-item.active, .nav-menu .nav-item:hover { color: #2563eb; font-weight: 600; }
        .nav-menu .nav-item.active::after, .nav-menu .nav-item:hover::after {
            content: ''; position: absolute; bottom: -5px; left: 0; width: 100%; height: 2px;
            background: linear-gradient(90deg, #2563eb, #3b82f6); border-radius: 1px;
        }

      

    

        @media (max-width: 768px) {
            .why-free-card {
                padding: 40px 20px;
            }
            
            .why-free-stats {
                flex-direction: column;
                gap: 40px;
            }
        }
        /* 语言选择器样式 */
            .lang-select {
                margin-left: 20px;
                padding: 8px 24px 8px 10px;
                border: 1px solid #e2e8f0;
                border-radius: 8px;
                background-color: rgba(255, 255, 255, 0.9);
                color: #64748b;
                font-size: 14px;
                cursor: pointer;
                outline: none;
                appearance: none;
                -webkit-appearance: none;
                background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
                background-repeat: no-repeat;
                background-position: right 8px center;
                transition: all 0.3s ease;
                font-weight: 500;
            }

            .lang-select:hover {
                border-color: #2563eb;
                color: #2563eb;
                background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            }

            /* 透明导航栏下的适配 */
            .navbar-transparent .lang-select {
                background-color: rgba(255, 255, 255, 0.2);
                border-color: rgba(255, 255, 255, 0.3);
                color: #fff;
                background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            }
            
            .navbar-transparent .lang-select option {
                background-color: #fff;
                color: #333;
            }