/* ========================================
   环亚实验室 - 基础样式合并文件
   HY-LAB Custom Base Styles (Merged)
   包含：通用变量、主题、全局优化
   ======================================== */

/* ========== 1. CSS变量定义 ========== */
:root {
    /* 主题色彩 */
    --hylab-primary: #0066CC;
    --hylab-primary-dark: #004C99;
    --hylab-primary-light: #3399FF;
    --hylab-secondary: #00C853;
    --hylab-secondary-dark: #009624;
    --hylab-accent: #FF6B35;
    
    /* 文本颜色 */
    --hylab-text-primary: #243352;
    --hylab-text-secondary: #44506B;
    --hylab-text-muted: #6C7A91;
    --hylab-text-light: #8A94A6;
    
    /* 背景色 */
    --hylab-bg-primary: #FFFFFF;
    --hylab-bg-secondary: #F5F9FF;
    --hylab-bg-tertiary: #EFF5FC;
    --hylab-bg-gradient-blue: linear-gradient(180deg, #f3f8ff 0%, #ffffff 45%, #f0f7ff 100%);
    --hylab-bg-gradient-light: linear-gradient(135deg, rgba(0, 102, 204, 0.08), rgba(0, 200, 83, 0.05));
    
    /* 阴影效果 */
    --hylab-shadow-sm: 0 4px 12px rgba(15, 76, 129, 0.08);
    --hylab-shadow-md: 0 12px 32px rgba(15, 76, 129, 0.12);
    --hylab-shadow-lg: 0 24px 60px rgba(15, 76, 129, 0.16);
    --hylab-shadow-xl: 0 30px 70px rgba(15, 76, 129, 0.18);
    --hylab-shadow-hover: 0 18px 45px rgba(0, 102, 204, 0.2);
    
    /* 边框圆角 */
    --hylab-radius-sm: 12px;
    --hylab-radius-md: 20px;
    --hylab-radius-lg: 28px;
    --hylab-radius-xl: 36px;
    --hylab-radius-pill: 999px;
    
    /* 渐变效果 */
    --hylab-gradient-primary: linear-gradient(135deg, var(--hylab-secondary), var(--hylab-primary));
    --hylab-gradient-hero: linear-gradient(135deg, rgba(0, 102, 204, 0.18), rgba(0, 200, 83, 0.15));
    --hylab-gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 249, 255, 0.9));
    --hylab-gradient-hover: linear-gradient(135deg, var(--hylab-primary), var(--hylab-primary-dark));
    
    /* 过渡动画 */
    --hylab-transition-fast: 0.2s ease;
    --hylab-transition-normal: 0.3s ease;
    --hylab-transition-slow: 0.5s ease;
    --hylab-transition-transform: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 间距 */
    --hylab-spacing-xs: 8px;
    --hylab-spacing-sm: 16px;
    --hylab-spacing-md: 24px;
    --hylab-spacing-lg: 32px;
    --hylab-spacing-xl: 48px;
    --hylab-spacing-2xl: 64px;
    
    /* 字体 */
    --hylab-font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    --hylab-font-size-xs: 13px;
    --hylab-font-size-sm: 15px;
    --hylab-font-size-md: 16px;
    --hylab-font-size-lg: 18px;
    --hylab-font-size-xl: 20px;
    --hylab-font-size-2xl: 24px;
    --hylab-font-size-3xl: 32px;
    --hylab-font-size-4xl: 44px;
}

/* ========== 2. 全局样式优化 ========== */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    color: #333333;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 20%, #ffffff 40%, #f8f9fa 60%, #ffffff 80%, #f8f9fa 100%);
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

::selection {
    background: var(--hylab-primary);
    color: var(--hylab-bg-primary);
}

/* ========== 3. 通用工具类 ========== */
.hylab-shadow-sm { box-shadow: var(--hylab-shadow-sm); }
.hylab-shadow-md { box-shadow: var(--hylab-shadow-md); }
.hylab-shadow-lg { box-shadow: var(--hylab-shadow-lg); }
.hylab-shadow-xl { box-shadow: var(--hylab-shadow-xl); }

.hylab-gradient-primary { background: var(--hylab-gradient-primary); }
.hylab-gradient-hero { background: var(--hylab-gradient-hero); }

.hylab-text-primary { color: var(--hylab-text-primary); }
.hylab-text-secondary { color: var(--hylab-text-secondary); }
.hylab-text-muted { color: var(--hylab-text-muted); }

.hylab-transition { transition: var(--hylab-transition-normal); }
.hylab-transition-fast { transition: var(--hylab-transition-fast); }
.hylab-transition-slow { transition: var(--hylab-transition-slow); }

/* ========== 4. 图片通用样式 ========== */
.hylab-img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hylab-img-contain {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* ========== 5. 卡片通用样式 ========== */
.hylab-card {
    background: var(--hylab-bg-primary);
    border-radius: var(--hylab-radius-lg);
    box-shadow: var(--hylab-shadow-md);
    transition: var(--hylab-transition-transform), box-shadow var(--hylab-transition-normal);
}

.hylab-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--hylab-shadow-hover);
}

/* ========== 6. 按钮通用样式 ========== */
.hylab-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--hylab-radius-pill);
    background: var(--hylab-gradient-primary);
    color: var(--hylab-bg-primary);
    font-weight: 600;
    text-decoration: none;
    box-shadow: var(--hylab-shadow-md);
    transition: var(--hylab-transition-transform), box-shadow var(--hylab-transition-normal);
}

.hylab-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--hylab-shadow-lg);
    color: var(--hylab-bg-primary);
}

.btn-primary,
.service_list_met_16_2_52 .more,
a.btn {
    background: linear-gradient(135deg, var(--hylab-primary), var(--hylab-primary-dark)) !important;
    border: none !important;
    color: #ffffff !important;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--hylab-transition-normal);
    box-shadow: 0 2px 8px rgba(0,102,204,0.2);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover,
.service_list_met_16_2_52 .more:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,102,204,0.3);
}

/* ========== 7. 响应式容器 ========== */
.hylab-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--hylab-spacing-md);
}

/* ========== 8. 动画定义 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 分割线动画 */
@keyframes hylab-slideLineIn {
    0% {
        width: 0;
        opacity: 0;
    }
    100% {
        width: 80px;
        opacity: 1;
    }
}

@keyframes hylab-gradientMove {
    0% {
        background-position: -100% 0;
    }
    100% {
        background-position: 100% 0;
    }
}

/* ========== 9. 页面整体优化 ========== */
.met-index-body > .container {
    position: relative;
    z-index: 1;
}

.met-index-body,
.page-content {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* ========== 10. 全局图片优化 ========== */
.met-index-body img,
.page-content img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: opacity 0.3s ease;
}

.met-index-body img[data-original],
.page-content img[data-original] {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.met-index-body img.lazyloaded,
.page-content img.lazyloaded,
.met-index-body img[src],
.page-content img[src] {
    opacity: 1;
}

/* ========== 11. 全局链接优化 ========== */
.met-index-body a,
.page-content a {
    text-decoration: none;
    transition: color 0.3s ease;
    outline: none;
}

.met-index-body a:focus,
.page-content a:focus {
    outline: 2px solid rgba(0, 102, 204, 0.3);
    outline-offset: 2px;
}

/* ========== 12. GPU加速优化 ========== */
.met-index-body .card,
.met-index-body .service-shadow,
.met-index-body .agile_team_grid,
.met-index-body .default-blog-news {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform-style: preserve-3d;
    will-change: transform, box-shadow;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* ========== 13. 轮播图高度优化 ========== */

/* 限制轮播图最大高度 - 减少50% */
[class*="banner_met"] {
    margin-bottom: 0 !important;
    max-height: 410px !important;  /* 原820px的一半 */
    overflow: hidden !important;
}

[class*="banner_met"] .slick-slide {
    max-height: 410px !important;  /* 限制slide容器高度 */
}

[class*="banner_met"] .cover-image {
    max-height: 410px !important;  /* 限制图片最大高度 */
    object-fit: cover !important;   /* 确保图片覆盖，不变形 */
    object-position: center !important;
    width: 100% !important;
    height: 410px !important;       /* 固定高度 */
}

/* 首页第一个模块顶部间距 */
.service_list_met_16_2_52.met-index-body {
    margin-top: 0 !important;
    padding-top: 40px !important;
}

.product_list_met_16_1_59.met-index-body {
    margin-top: 0 !important;
    padding-top: 40px !important;
}

.about_list_met_28_8_53.page-content,
.case_list_met_35_1_60.met-index-body {
    margin-top: 0;
    padding-top: 100px !important;
}

.news_list_met_35_5_58.met-index-body {
    margin-top: 0;
    padding-top: 100px !important;
    padding-bottom: 100px !important;
}

/* ========== 14. 响应式设计 ========== */
@media (max-width: 1199px) {
    [class*="banner_met"],
    [class*="banner_met"] .slick-slide,
    [class*="banner_met"] .cover-image {
        max-height: 350px !important;
        height: 350px !important;
    }
    
    .service_list_met_16_2_52.met-index-body,
    .product_list_met_16_1_59.met-index-body {
        margin-top: 0 !important;
        padding-top: 30px !important;
    }
    
    .about_list_met_28_8_53.page-content,
    .case_list_met_35_1_60.met-index-body,
    .news_list_met_35_5_58.met-index-body {
        padding-top: 40px !important;
    }
}

@media (max-width: 991px) {
    [class*="banner_met"],
    [class*="banner_met"] .slick-slide,
    [class*="banner_met"] .cover-image {
        max-height: 300px !important;
        height: 300px !important;
    }
    
    .service_list_met_16_2_52.met-index-body,
    .product_list_met_16_1_59.met-index-body {
        margin-top: 0 !important;
        padding-top: 25px !important;
    }
    
    .about_list_met_28_8_53.page-content,
    .case_list_met_35_1_60.met-index-body,
    .news_list_met_35_5_58.met-index-body {
        padding-top: 25px !important;
    }
    
    .news_list_met_35_5_58.met-index-body {
        padding-bottom: 60px !important;
    }
}

@media (max-width: 767px) {
    :root {
        --hylab-font-size-3xl: 24px;
        --hylab-font-size-4xl: 32px;
        --hylab-spacing-xl: 32px;
        --hylab-spacing-2xl: 48px;
    }
    
    [class*="banner_met"],
    [class*="banner_met"] .slick-slide,
    [class*="banner_met"] .cover-image {
        max-height: 256px !important;  /* 移动端512px的一半 */
        height: 256px !important;
    }
    
    .service_list_met_16_2_52.met-index-body,
    .product_list_met_16_1_59.met-index-body {
        margin-top: 0 !important;
        padding-top: 20px !important;
    }
    
    .about_list_met_28_8_53.page-content,
    .case_list_met_35_1_60.met-index-body,
    .news_list_met_35_5_58.met-index-body {
        padding-top: 20px !important;
    }
    
    .news_list_met_35_5_58.met-index-body {
        padding-bottom: 50px !important;
    }
}

/* ========== 15. 可访问性优化 ========== */
a:focus,
button:focus,
input:focus {
    outline: 2px solid var(--hylab-primary);
    outline-offset: 2px;
}

/* ========== 16. 打印样式 ========== */
@media print {
    .met-index-body::before,
    .met-index-body::after,
    .loading-overlay {
        display: none !important;
    }
    
    .met-index-body {
        background: #ffffff !important;
        padding: 20px 0 !important;
    }
}

/* ========== 17. 性能优化 ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========== 18. 高对比度模式支持 ========== */
@media (prefers-contrast: high) {
    :root {
        --hylab-primary: #0052A3;
        --hylab-secondary: #008A3A;
    }
}

/* ========== 19. 字体渲染优化 ========== */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.met-index-body,
.page-content {
    font-feature-settings: "kern" 1;
    font-kerning: normal;
}