/* 首页样式 */

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

:root {
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --secondary-color: #764ba2;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    font-size: 28px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-login {
    padding: 8px 20px;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-login:hover {
    background: var(--primary-color);
    color: #fff;
}

.btn-register {
    padding: 10px 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-user {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

/* 解析区域 */
.parser-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
}

.parser-box {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 50px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.parser-title {
    font-size: 32px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.parser-title i {
    color: var(--primary-color);
}

.parser-subtitle {
    color: var(--text-light);
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    gap: 10px;
    max-width: 700px;
    margin: 0 auto 20px;
}

.parser-input {
    flex: 1;
    padding: 18px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
}

.parser-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.parser-btn {
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.parser-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.platforms {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.platform-label {
    color: var(--text-light);
    font-size: 14px;
}

.platform-tag {
    padding: 5px 12px;
    background: var(--bg-color);
    border-radius: 20px;
    font-size: 13px;
}

.platform-more {
    color: var(--primary-color);
    font-size: 13px;
}

/* 结果区域 */
.result-area {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    margin-top: 30px;
}

.loading {
    text-align: center;
    padding: 50px;
}

.loading i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.result-content {
    text-align: center;
}

.result-video {
    max-width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.btn-download {
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-copy {
    padding: 12px 30px;
    background: var(--bg-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* 功能特点 */
.features-section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 28px;
    color: #fff;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* 价格说明 */
.pricing-section {
    padding: 80px 0;
    background: var(--card-bg);
}

.pricing-card {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.price-item {
    text-align: center;
    padding: 30px 50px;
    background: var(--bg-color);
    border-radius: 16px;
}

.price-label {
    display: block;
    color: var(--text-light);
    margin-bottom: 10px;
}

.price-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-action {
    text-align: center;
    margin-top: 40px;
}

.btn-primary {
    padding: 15px 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    border-radius: 30px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* 页脚 */
.footer {
    background: #1e1e2d;
    color: #fff;
    padding: 40px 0;
}

.footer-content {
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
}

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

.footer-links a:hover {
    color: #fff;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.copyright a {
    color: rgba(255, 255, 255, 0.7);
}

/* 响应式 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .parser-box {
        padding: 30px 20px;
    }
    
    .parser-title {
        font-size: 24px;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .parser-btn {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card {
        flex-direction: column;
        align-items: center;
    }
    
    .price-item {
        width: 100%;
        max-width: 300px;
    }
}