/* 响应式样式 */

/* 平板设备 */
@media (max-width: 1024px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-container {
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

/* 移动设备 */
@media (max-width: 768px) {
    /* Logo响应式 */
    .nav-logo h2 {
        font-size: 1.2rem;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    
    /* 导航栏移动端 */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        gap: 2rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu a {
        font-size: 1.2rem;
        padding: 1rem;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border-light);
        color: var(--text-dark) !important;
        font-weight: 500;
    }
    
    .nav-menu a:hover {
        color: var(--primary-color) !important;
        background: var(--background-light);
    }
    
    .nav-auth {
        flex-direction: column;
        width: 200px;
        margin-top: 1rem;
        gap: 1rem;
    }
    
    /* 移动端按钮样式增强 */
    .nav-auth .btn-login {
        border: 2px solid var(--primary-color) !important;
        color: var(--primary-color) !important;
        background: transparent;
        padding: 12px 24px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        text-align: center;
        display: block;
        width: 100%;
    }
    
    .nav-auth .btn-login:hover {
        background: var(--primary-color) !important;
        color: white !important;
    }
    
    .nav-auth .btn-register {
        background: var(--primary-color) !important;
        color: white !important;
        border: 2px solid var(--primary-color) !important;
        padding: 12px 24px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        text-align: center;
        display: block;
        width: 100%;
    }
    
    .nav-auth .btn-register:hover {
        background: var(--primary-dark) !important;
        border-color: var(--primary-dark) !important;
    }
    
    /* 滚动状态下的移动端菜单 */
    .navbar-scrolled .nav-menu {
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
    }
    
    .navbar-scrolled .nav-menu a {
        color: var(--text-dark) !important;
    }
    
    .navbar-scrolled .nav-menu a:hover {
        color: var(--primary-color) !important;
        background: var(--background-light);
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -7px);
    }
    
    /* 英雄区移动端 */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .floating-card {
        max-width: 300px;
    }
    
    /* 优势区域移动端 */
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 功能特性移动端 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    /* 套餐价格移动端 */
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .pricing-card.featured {
        transform: none;
        order: -1;
    }
    
    .pricing-card:hover {
        transform: translateY(-2px);
    }
    
    /* 关于我们移动端 */
    .about-content {
        text-align: center;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    /* 页脚移动端 */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    /* 通用移动端调整 */
    .section-header h2 {
        font-size: 2rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    /* 按钮移动端 */
    .btn {
        padding: 12px 20px;
        font-size: 0.95rem;
        width: 100%;
        max-width: 200px;
        border: 2px solid transparent;
    }
    
    .hero-buttons .btn {
        max-width: none;
    }
    
    /* 确保移动端按钮边框完整显示 */
    .nav-auth a {
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
    }
}

/* 小屏手机设备 */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    /* 超小屏幕Logo优化 */
    .nav-logo h2 {
        font-size: 1rem;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
    
    
    .nav-container {
        padding: 0 12px;
    }
    
    /* 英雄区小屏调整 */
    .hero {
        padding: 90px 0 50px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    /* 卡片间距调整 */
    .advantage-item,
    .feature-card,
    .pricing-card {
        padding: 1.2rem;
    }
    
    /* 统计数字调整 */
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    /* 文字大小调整 */
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .feature-card h3 {
        font-size: 1.2rem;
    }
    
    .advantage-icon {
        font-size: 2rem;
    }
}

/* 超小屏设备 */
@media (max-width: 360px) {
    .nav-container {
        height: 60px;
    }
    
    .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}

/* 横屏模式优化 */
@media screen and (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: auto;
        padding: 80px 0 40px;
    }
    
    .hero-container {
        gap: 1.5rem;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .hero-description {
        margin-bottom: 1.5rem;
    }
    
    .floating-card {
        max-width: 250px;
        padding: 1.5rem;
    }
}

/* 高分辨率屏幕优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .nav-container {
        max-width: 1400px;
    }
    
    .hero-container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-description {
        font-size: 1.3rem;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .advantage-item:hover,
    .feature-card:hover,
    .pricing-card:hover {
        transform: none;
    }
    
    .btn:active {
        transform: scale(0.98);
    }
    
    .nav-menu a {
        padding: 1rem;
    }
}

/* 无障碍和高对比度模式 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-card {
        animation: none;
    }
    
    .demo-line {
        animation: none;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .navbar {
        background: rgba(26, 32, 44, 0.95);
        border-bottom-color: #4a5568;
    }
    
    .nav-menu a {
        color: #e2e8f0;
    }
    
    .hamburger span {
        background: #e2e8f0;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-buttons,
    .btn,
    .hamburger {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: black !important;
        padding: 20px 0;
    }
    
    .section-header h2,
    .hero-title {
        color: black !important;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}