/*
 * 性能优化CSS - 平衡性能与美观
 * 保持专业视觉效果的同时提升加载速度
 */

/* ========================================
   GPU加速 - 保持动画流畅
   ======================================== */

.wp-block-button__link,
.wp-element-button,
.img-hover-zoom img,
.back-to-top {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* ========================================
   字体优化 - 快速显示文字
   ======================================== */

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 字体加载优化 */
@font-face {
    font-family: 'Montserrat';
    font-display: swap;
}

@font-face {
    font-family: 'Rubik';
    font-display: swap;
}

/* ========================================
   图片优化 - 防止布局偏移
   ======================================== */

img {
    max-width: 100%;
    height: auto;
}

/* 懒加载占位符 - 保持优雅 */
img[loading="lazy"] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

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

/* ========================================
   动画性能优化 - 保持视觉效果
   ======================================== */

/* 图片悬停效果 - 保持但优化 */
.img-hover-zoom img {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-hover-zoom:hover img {
    transform: scale(1.05) translateZ(0);
}

/* 按钮过渡 - 保持专业感 */
.wp-block-button__link,
.wp-element-button,
.wpcf7-submit {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 链接悬停 - 保持交互反馈 */
a {
    transition: color 0.2s ease;
}

/* ========================================
   阴影优化 - 保持深度感
   ======================================== */

/* 卡片阴影 - 保持专业外观 */
.product-showcase,
.service-card {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.product-showcase:hover,
.service-card:hover {
    box-shadow: 0 8px 24px rgba(9, 16, 87, 0.12);
    transform: translateY(-4px);
}

/* 按钮阴影 */
.wp-block-button__link,
.back-to-top {
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.wp-block-button__link:hover,
.back-to-top:hover {
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.3);
}

/* ========================================
   滚动性能 - 保持平滑
   ======================================== */

html {
    scroll-behavior: smooth;
}

/* 尊重用户偏好 */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   内容可见性优化 - 提升长页面性能
   ======================================== */

.wp-block-post-template > * {
    content-visibility: auto;
    contain-intrinsic-size: 0 400px;
}

/* ========================================
   移动端优化 - 保持流畅体验
   ======================================== */

@media (max-width: 768px) {
    /* 简化动画但保持效果 */
    .img-hover-zoom img {
        transition: transform 0.2s ease;
    }
    
    /* 移动端禁用悬停效果 */
    .img-hover-zoom:hover img {
        transform: none;
    }
    
    /* 优化阴影 */
    .product-showcase,
    .service-card {
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    }
}

/* ========================================
   渐变优化 - 保持视觉吸引力
   ======================================== */

.gradient-bg {
    background: linear-gradient(135deg, #091057 0%, #024caa 100%);
}

.quality-badge {
    background: linear-gradient(135deg, #091057 0%, #024caa 100%);
}

/* ========================================
   表单优化 - 保持专业外观
   ======================================== */

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: #024caa;
    box-shadow: 0 0 0 3px rgba(2, 76, 170, 0.1);
    transition: all 0.2s ease;
}

/* ========================================
   网格布局优化
   ======================================== */

.wrap-the-columns {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ========================================
   打印优化
   ======================================== */

@media print {
    * {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    img {
        max-width: 100% !important;
        page-break-inside: avoid;
    }
    
    .no-print,
    #header,
    #footer,
    .wp-block-navigation,
    .back-to-top {
        display: none !important;
    }
}

/* ========================================
   专业视觉增强
   ======================================== */

/* 微妙的页面进入动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wp-block-group {
    animation: fadeIn 0.6s ease-out;
}

/* 按钮点击反馈 */
.wp-block-button__link:active,
.wp-element-button:active {
    transform: scale(0.98);
}

/* 卡片边框光泽效果 */
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #024caa, #f59e0b);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* ========================================
   性能监控提示
   ======================================== */

/* 开发环境性能提示 */
body::after {
    content: '';
    position: fixed;
    bottom: 0;
    right: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

/* ========================================
   关键CSS优先级
   ======================================== */

/* 确保首屏快速渲染 */
#header {
    position: relative;
    z-index: 100;
}

.wp-site-blocks {
    overflow-x: hidden;
}

/* ========================================
   字体回退优化
   ======================================== */

body {
    font-family: 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}