/*-----------------------------------------------------------------------------------
    Template Name: 智慧安防科技官网
    Description: 智慧安防公司官方网站 - 安防监控、人脸门禁、智慧停车系统
    Author: AI Assistant
-----------------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------------
    响应式样式 - 移动优先设计
-----------------------------------------------------------------------------------*/

/* 超大型设备 (4K显示器, 1400px 及以上) */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-slider {
        height: 800px;
    }
    
    .slide-content h1 {
        font-size: 64px;
        line-height: 1.2;
    }
    
    .slide-content p {
        font-size: 20px;
    }
    
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 大型设备 (大型桌面, 1200px 及以上) */
@media (min-width: 1200px) {
    .container {
        max-width: 1170px;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .case-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 中型设备 (桌面, 992px 及以上) */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .hero-slider {
        height: 600px;
    }
    
    .slide-content h1 {
        font-size: 42px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .counter-number {
        font-size: 36px;
    }
    
    .counter-text {
        font-size: 16px;
    }
    
    .case-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 小型设备 (平板, 768px 及以上) */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        display: none;
    }
    
    .hero-slider {
        height: 500px;
    }
    
    .slide-content h1 {
        font-size: 36px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .col-md-5,
    .col-md-6,
    .col-md-7 {
        width: 100%;
    }
    
    .about-image {
        margin-bottom: 30px;
    }
    
    .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .partner-logo {
        width: 33.33%;
    }
    
    .contact-image {
        height: 300px;
    }
    
    .col-lg-2,
    .col-lg-3,
    .col-lg-4 {
        width: 50%;
    }
}

/* 超小设备 (手机, 767px 以下) */
@media (max-width: 767px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-sm);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        display: none;
    }
    
    .top-bar {
        padding: 8px 0;
        font-size: 12px;
    }
    
    .top-bar-inner {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    
    .top-bar-left {
        margin-bottom: 0;
    }
    
    .top-bar-info {
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }
    
    .top-bar-info li {
        margin-right: 0;
        margin-bottom: 0;
    }
    
    .hero-slider {
        height: 100vh;
        min-height: 500px;
        max-height: 700px;
    }
    
    .slide-content {
        padding: 0 var(--spacing-sm);
        text-align: center;
    }
    
    .slide-content h1 {
        font-size: clamp(24px, 8vw, 36px);
        margin-bottom: var(--spacing-sm);
        line-height: 1.2;
    }
    
    .slide-content p {
        font-size: clamp(14px, 4vw, 16px);
        margin-bottom: var(--spacing-md);
        line-height: 1.5;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
        width: auto;
        min-width: 140px;
    }
    
    .btn-lg {
        padding: 14px 28px;
        font-size: 16px;
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-header {
        margin-bottom: var(--spacing-lg);
        padding: 0 var(--spacing-sm);
    }
    
    .section-header h2 {
        font-size: clamp(24px, 6vw, 32px);
        margin-bottom: var(--spacing-sm);
    }
    
    .section-header p {
        font-size: clamp(14px, 4vw, 16px);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .service-card {
        padding: var(--spacing-lg) var(--spacing-md);
        margin: 0 var(--spacing-xs);
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 28px;
        margin-bottom: var(--spacing-md);
    }
    
    .case-filter {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xs);
        margin-bottom: var(--spacing-md);
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 12px;
        min-width: 120px;
    }
    
    .case-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .case-item {
        margin: 0 var(--spacing-xs);
    }
    
    .case-image {
        height: 200px;
    }
    
    .col-md-5,
    .col-md-6,
    .col-md-7,
    .col-lg-2,
    .col-lg-3,
    .col-lg-4 {
        width: 100%;
        margin-bottom: var(--spacing-md);
    }
    
    .about-image {
        margin-bottom: var(--spacing-lg);
    }
    
    .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .counter-number {
        font-size: clamp(24px, 8vw, 32px);
    }
    
    .counter-text {
        font-size: clamp(12px, 4vw, 14px);
    }
    
    .experience-badge {
        width: 80px;
        height: 80px;
        bottom: 20px;
        right: 20px;
    }
    
    .experience-badge .years {
        font-size: 18px;
    }
    
    .experience-badge .text {
        font-size: 12px;
    }
    
    /* 触摸优化 */
    .btn,
    .filter-btn,
    .mobile-menu-toggle {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    /* 文本选择优化 */
    .slide-content h1,
    .section-header h2 {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
}
    
    .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .counter-item {
        margin-bottom: 20px;
    }
    
    .counter-number {
        font-size: 30px;
    }
    
    .counter-text {
        font-size: 14px;
    }
    
    .case-filter {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .filter-btn {
        margin-bottom: 10px;
    }
    
    .case-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonial-content p {
        font-size: 16px;
    }
    
    .partner-logo {
        width: 50%;
    }
    
    .contact-content {
        padding: 30px 20px;
    }
    
    .contact-image {
        height: 250px;
    }
    
    .footer-top {
        padding: 50px 0 20px;
    }
    
    .footer-widget {
        margin-bottom: 40px;
    }
}

/* 特小设备 (小型手机, 575px 以下) */
@media (max-width: 575px) {
    .hero-slider {
        height: 400px;
    }
    
    .slide-content h1 {
        font-size: 24px;
    }
    
    .counter-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-logo {
        width: 100%;
    }
    
    .info-item {
        width: 100%;
        margin-right: 0;
    }
    
    .client-info {
        flex-direction: column;
        text-align: center;
    }
    
    .client-image {
        margin-right: 0;
        margin-bottom: 10px;
    }
}

/* 移动端导航菜单动画 */
@media (max-width: 991px) {
    .mobile-menu {
        width: 280px;
    }
    
    .mobile-menu-header .logo img {
        max-height: 35px;
    }
    
    .mobile-menu-list li a {
        font-size: 15px;
    }
    
    .mobile-dropdown li a {
        font-size: 13px;
    }
}

/* 平板和手机的横屏模式 */
@media (max-width: 991px) and (orientation: landscape) {
    .hero-slider {
        height: 450px;
    }
    
    .mobile-menu {
        overflow-y: scroll;
    }
}

/* 针对iPhone X等全面屏设备的底部安全区域 */
@media screen and (min-device-width: 375px) and (max-device-width: 812px) and (-webkit-min-device-pixel-ratio: 3) {
    .footer {
        padding-bottom: env(safe-area-inset-bottom);
    }
    
    .back-to-top {
        bottom: calc(30px + env(safe-area-inset-bottom));
    }
}

/* 针对折叠屏设备的优化 */
@media (max-width: 320px) {
    .hero-slider {
        height: 350px;
    }
    
    .slide-content h1 {
        font-size: 20px;
    }
    
    .slide-content p {
        font-size: 12px;
    }
    
    .btn {
        padding: 8px 20px;
        font-size: 12px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .mobile-menu {
        width: 250px;
    }
}

/* 针对高分辨率屏幕的优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-slider {
        height: 800px;
    }
    
    .slide-content h1 {
        font-size: 54px;
    }
    
    .slide-content p {
        font-size: 20px;
    }
}

/* 针对打印的样式 */
@media print {
    .header,
    .footer,
    .hero-slider,
    .back-to-top {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }
    
    .section-header h2::after {
        display: none;
    }
}