/* ==========================================
   移动端优化样式补充
   陕西艺景网络科技有限公司
   ========================================== */

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px; /* iOS推荐的最小触摸目标尺寸 */
        padding: 1rem 2rem;
    }
    
    .nav-link {
        padding: 1rem;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .product-card:hover,
    .service-item:hover {
        transform: none; /* 禁用hover效果 */
    }
    
    .product-card:active,
    .service-item:active {
        transform: scale(0.98);
        transition: transform 0.1s;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-visual,
    .tech-card,
    .product-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .robot-animation {
        width: 150px;
        height: 150px;
    }
}

/* 超小屏幕优化 */
@media (max-width: 320px) {
    :root {
        --container-padding: 10px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .nav-logo span {
        font-size: 1.25rem;
    }
    
    .contact-form {
        padding: 1rem;
    }
}

/* 平板设备优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero .container {
        gap: 2rem;
    }
    
    .products-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1f2937;
        --gray-100: #374151;
        --gray-200: #4b5563;
        --dark-color: #f9fafb;
        --gray-600: #d1d5db;
        --gray-400: #9ca3af;
    }
    
    .navbar {
        background: rgba(31, 41, 55, 0.95);
        border-bottom-color: var(--gray-200);
    }
    
    .tech-card,
    .product-card,
    .service-item,
    .news-item,
    .contact-form {
        background: #374151;
        border-color: var(--gray-200);
    }
}

/* 减少动画设置 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-particles,
    .robot,
    .robot-arm,
    .wheel {
        animation: none !important;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .back-to-top,
    .hero-buttons,
    .contact-form {
        display: none !important;
    }
    
    .hero {
        background: white !important;
        color: black !important;
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero-visual {
        display: none;
    }
    
    .section-title {
        color: black !important;
    }
    
    * {
        box-shadow: none !important;
    }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* 选中文本样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

::-moz-selection {
    background: var(--primary-color);
    color: white;
}

/* 焦点样式 */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
input:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* 辅助功能增强 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 加载动画 */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* 骨架屏加载效果 */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-color);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    z-index: 1000;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--dark-color);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 进度指示器 */
.progress-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 9999;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.3s ease;
}

/* 模态框基础样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.8);
    transition: var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-600);
}

/* 卡片悬停效果增强 */
.card-hover-effect {
    position: relative;
    overflow: hidden;
}

.card-hover-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

.card-hover-effect:hover::before {
    left: 100%;
}

/* 文字渐变效果 */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃态效果增强 */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-dark {
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 3D翻转卡片 */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
}

.flip-card-back {
    transform: rotateY(180deg);
}

/* 波浪背景效果 */
.wave-background {
    position: relative;
    overflow: hidden;
}

.wave-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25" fill="%23667eea"></path><path d="M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z" opacity=".5" fill="%23667eea"></path><path d="M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z" fill="%23667eea"></path></svg>') repeat-x;
    animation: wave 20s linear infinite;
    opacity: 0.1;
}

@keyframes wave {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-1200px);
    }
}