/* 资质证书页面专用样式 */
.certificates-page {
    width: 100%;
    overflow-x: hidden;
}
    
/* ===== 首屏引导区 (Hero) - 静态背景墙版 ===== */
.certificates-hero {
    height: 380px; /* 保持原有高度 */
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--color-border);
    
    /* 背景墙图片 - 使用混凝土/砖墙纹理 */
    background-image: 
        /* 主背景图片 - 混凝土纹理 */
        url('data:image/svg+xml;base64,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'),
        /* 砖墙纹理叠加 */
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0);
    
    background-color: #f8f9fa; /* 背景底色 */
    background-size: 
        600px 600px, 
        100px 100px, 
        100px 100px;
    background-position: 
        0 0, 
        0 0, 
        50px 50px;
    
    /* 添加深色渐变遮罩，确保文字可读性 */
    &::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.1) 0%,
            rgba(0, 0, 0, 0.05) 30%,
            transparent 50%,
            rgba(0, 0, 0, 0.05) 70%,
            rgba(0, 0, 0, 0.1) 100%
        );
        pointer-events: none;
    }
}

/* 内容层 */
.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 var(--spacing-lg);
    width: 100%;
    max-width: 1000px;
}

/* 标题包装器 */
.hero-text-wrapper {
    margin-bottom: var(--spacing-3xl);
}

/* 主标题样式 */
.hero-title {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    color: #1f63eb;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    text-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.1);
}

.title-line {
    display: block;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.title-subline {
    display: block;
    font-size: 24px;
    font-weight: var(--font-weight-medium);
    color: var(--color-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
}

/* 副标题样式 */
.subtitle {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    font-size: 18px;
    color: #213a6a;
    font-weight: var(--font-weight-medium);
    margin-top: var(--spacing-xl);
}

.subtitle-item {
    position: relative;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);  /* 调整为70%不透明度，可根据需要修改0.3-0.9之间的值 */
    backdrop-filter: blur(5px);
    border-radius: var(--radius-md);
    border: 1px solid rgba(26, 86, 219, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all var(--animation-speed-normal) ease;
}

.subtitle-item:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(26, 86, 219, 0.15);
}

.subtitle-separator {
    color: var(--color-primary);
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    opacity: 0.6;
}

/* 深色主题适配 */
[data-theme="dark"] .certificates-hero {
    border-bottom: 1px solid var(--color-border);
    
    /* 深色主题背景墙 */
    background-image: 
        url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAwIiBoZWlnaHQ9IjYwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KICA8ZGVmcz4KICAgIDxmaWx0ZXIgaWQ9Im5vaXNlIiB4PSIwJSIgeT0iMCUiIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPgogICAgICA8ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iMC42IiBudW1PY3RhdmVzPSI1IiBzdGl0Y2hUaWxlcz0ic3RpdGNoIi8+CiAgICAgIDxmZUNvbG9yTWF0cml4IHR5cGU9Im1hdHJpeCIgdmFsdWVzPSIwLjQgMCAwIDAgMC4xIDAuNCAwIDAgMC4xIDAgMC40IDAgMC4xIDAgMCAwIDAuMyAwIi8+CiAgICA8L2ZpbHRlcj4KICA8L2RlZnM+CiAgPHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsdGVyPSJ1cmwoI25vaXNlKSIgZmlsbD0iIzFlMjkzYiIvPgo8L3N2Zz4='),
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0);
    
    background-color: #1e293b; /* 深色背景底色 */
    
    &::before {
        background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.2) 0%,
            rgba(0, 0, 0, 0.1) 30%,
            transparent 50%,
            rgba(0, 0, 0, 0.1) 70%,
            rgba(0, 0, 0, 0.2) 100%
        );
    }
}

[data-theme="dark"] .hero-title {
    color: var(--color-text);
    text-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .title-subline {
    color: var(--color-muted);
}

[data-theme="dark"] .subtitle {
    color: var(--color-text);
}

[data-theme="dark"] .subtitle-item {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(96, 165, 250, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .subtitle-item:hover {
    background: rgba(30, 41, 59, 0.9);
    box-shadow: 0 4px 16px rgba(96, 165, 250, 0.15);
}

[data-theme="dark"] .subtitle-separator {
    color: var(--color-primary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .certificates-hero {
        height: 320px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .title-subline {
        font-size: 18px;
    }
    
    .subtitle {
        font-size: 16px;
        gap: var(--spacing-md);
    }
    
    .subtitle-item {
        padding: var(--spacing-xs) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .certificates-hero {
        height: 280px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .title-subline {
        font-size: 16px;
    }
    
    .subtitle {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .subtitle-separator {
        display: none;
    }
    
    .subtitle-item {
        width: 100%;
        max-width: 180px;
    }
}

/* 替代方案：使用外部图片（如果需要更真实的墙体图片） */
/* 
.certificates-hero {
    background-image: url('https://images.unsplash.com/photo-1520038410233-7141be7e6f97?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.95);
}

[data-theme="dark"] .certificates-hero {
    filter: brightness(0.6);
}
*/
    
/* ===== 面包屑导航（适配PbootCMS标签） ===== */
.certificates-breadcrumb {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
    background-color: rgba(248, 249, 250, 0.9);
    backdrop-filter: blur(2px);
    box-shadow: 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    margin-bottom: 2px;
}

[data-theme="dark"] .certificates-breadcrumb {
    background-color: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(2px);
    box-shadow: 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.breadcrumb-nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;  /* 控制项之间的间距 */
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    line-height: 1.5;
}

/* 面包屑链接和当前项通用样式 */
.breadcrumb-nav a,
.breadcrumb-nav span {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    transition: color var(--animation-speed-fast) ease;
    white-space: nowrap;
}

.breadcrumb-nav a {
    color: var(--color-muted);
}

.breadcrumb-nav a:hover {
    color: var(--color-primary);
}

.breadcrumb-nav span {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

/* 首页图标样式 */
.breadcrumb-nav a i.fa-home {
    margin-right: 4px;
    font-size: 14px;
}

/* 分隔符图标样式 */
.breadcrumb-nav i.fa-chevron-right {
    color: var(--color-muted);
    font-size: 12px;
    opacity: 0.5;
    margin: 0 2px;  /* 微调间距，与gap配合 */
}

/* ===== 资质说明区（优化版：背景统一，仅文字效果调整，大小不变） ===== */
.certificates-intro {
    padding: var(--spacing-3xl) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;

    /* 背景：与 .certificates-hero 完全一致 */
    background-image: 
        url('data:image/svg+xml;base64,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'),
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0);
    background-color: #f8f9fa;
    background-size: 
        600px 600px, 
        100px 100px, 
        100px 100px;
    background-position: 
        0 0, 
        0 0, 
        50px 50px;

    /* 深色遮罩 */
    &::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.1) 0%,
            rgba(0, 0, 0, 0.05) 30%,
            transparent 50%,
            rgba(0, 0, 0, 0.05) 70%,
            rgba(0, 0, 0, 0.1) 100%
        );
        pointer-events: none;
        z-index: 1;
    }
}

/* 深色模式适配 */
[data-theme="dark"] .certificates-intro {
    background-image: 
        url('data:image/svg+xml;base64,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'),
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0);
    background-color: #1e293b;

    &::before {
        background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.2) 0%,
            rgba(0, 0, 0, 0.1) 30%,
            transparent 50%,
            rgba(0, 0, 0, 0.1) 70%,
            rgba(0, 0, 0, 0.2) 100%
        );
    }
}

/* 说明文字容器 */
.intro-container {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* 说明文字样式：保持原有字体大小，只修改文字效果 */
.intro-text {
    font-size: var(--font-size-lg);      /* 保持原大小，不变 */
    line-height: 1.7;                     /* 保持原行高，不变 */
    margin: 0;                             /* 保持原边距，不变 */

    /* 只修改以下效果为标题样式 */
    font-weight: var(--font-weight-bold); /* 加粗，与 .hero-title 一致 */
    color: #623106;                       /* 浅色模式主色，与 .hero-title 一致 */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 文字阴影，与 .hero-title 一致 */
}

/* 深色模式文字颜色 */
[data-theme="dark"] .intro-text {
    color: var(--color-text);              /* 深色模式文字色（白色） */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 保留 strong 标签样式不变 */
.intro-text strong {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}
    
    /* ===== 企业资质墙 (核心模块) ===== */
    .certificates-wall {
        padding: var(--spacing-4xl) var(--spacing-lg);
        background-color: var(--color-card-bg);
        min-height: 800px;
    }
    
    .wall-container {
        max-width: 1400px;
        margin: 0 auto;
        display: flex;
        flex-direction: row;
        gap: var(--spacing-3xl);
    }
    
    /* 左列：证书展示墙 (70%) */
    .certificates-grid {
        flex: 0 0 70%;
        width: 70%;
    }
    
    .certificates-grid-title {
        font-size: var(--font-size-2xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-2xl);
        padding-bottom: var(--spacing-md);
        border-bottom: 2px solid var(--color-primary);
        display: inline-block;
    }
    
    .certificates-grid-container {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
       /* 证书卡片容器优化 */
    .certificate-item {
        background: var(--color-bg);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: all var(--animation-speed-normal) var(--animation-easing);
        opacity: 0;
        transform: translateY(10px);
        border: 1px solid var(--color-border);
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    
    .certificate-item.visible {
        opacity: 1;
        transform: translateY(0);
    }
    
    .certificate-card {
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    
    /* 证书图片区域 - 竖版设计 */
    .certificate-figure {
        width: 100%;
        height: 320px; /* 调整为更适合竖版证书的高度 */
        overflow: hidden;
        background-color: #f9fafb;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-md);
    }
    
    /* 证书图片容器 - 控制竖版比例 */
    .certificate-image-container {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: white;
        border-radius: var(--radius-md);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        overflow: hidden;
    }
    
    /* 证书图片 - 竖版样式 */
    .certificate-image {
        width: auto;
        height: 100%;
        max-width: 100%;
        object-fit: contain;
        transition: transform var(--animation-speed-slow) var(--animation-easing);
    }
    
    .certificate-item:hover .certificate-image {
        transform: scale(1.03);
    }
    
    .certificate-badge {
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
        background: var(--color-primary);
        color: white;
        font-size: var(--font-size-xs);
        font-weight: var(--font-weight-medium);
        padding: 6px 10px;
        border-radius: var(--radius-sm);
        z-index: 2;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }
    
    /* 悬停覆盖层样式 */
    .certificate-hover-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            to bottom,
            rgba(26, 86, 219, 0.95) 0%,
            rgba(26, 86, 219, 0.85) 100%
        );
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity var(--animation-speed-normal) ease;
        padding: var(--spacing-xl);
        text-align: center;
        pointer-events: none;
        border-radius: var(--radius-lg);
        backdrop-filter: blur(2px);
    }
    
    .certificate-item:hover .certificate-hover-overlay {
        opacity: 1;
        pointer-events: auto;
    }
    
    /* 悬停内容样式 */
    .hover-content {
        max-width: 90%;
        max-height: 90%;
        overflow-y: auto;
        padding: var(--spacing-sm);
    }
    
    .hover-content::-webkit-scrollbar {
        width: 4px;
    }
    
    .hover-content::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 2px;
    }
    
    .hover-content::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 2px;
    }
    
    .certificate-title {
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: white;
        margin-bottom: var(--spacing-md);
        line-height: 1.3;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    
    .certificate-desc {
        font-size: var(--font-size-sm);
        color: rgba(255, 255, 255, 0.95);
        line-height: 1.5;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    }
    
    /* 证书元信息样式 */
    .certificate-meta {
        font-size: var(--font-size-sm);
        color: var(--color-muted);
        padding: var(--spacing-md);
        border-top: 1px solid var(--color-border);
        display: flex;
        justify-content: space-between;
        background: var(--color-card-bg);
        margin-top: auto;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .certificate-meta span {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    
    /* 响应式调整 */
    @media (max-width: 1200px) {
        .certificate-figure {
            height: 280px;
        }
    }
    
    @media (max-width: 768px) {
        .certificate-figure {
            height: 250px;
        }
        
        .certificate-title {
            font-size: var(--font-size-md);
        }
        
        .certificate-desc {
            font-size: var(--font-size-xs);
        }
        
        .certificate-meta {
            font-size: var(--font-size-xs);
            padding: var(--spacing-sm);
        }
    }
    
    @media (max-width: 480px) {
        .certificate-figure {
            height: 220px;
            padding: var(--spacing-sm);
        }
        
        .certificate-badge {
            top: var(--spacing-sm);
            right: var(--spacing-sm);
            font-size: 10px;
            padding: 4px 8px;
        }
    }
    
    /* 右列：固定专业说明区 (30%) */
    .certificates-sidebar {
        flex: 0 0 30%;
        width: 30%;
        position: relative;
    }
    
    .sidebar-sticky {
        position: sticky;
        top: calc(var(--layout-header-height) + var(--spacing-2xl));
    }
    
    /* 认证概览卡 */
    .overview-card {
        background: var(--color-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-2xl);
        margin-bottom: var(--spacing-xl);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
    }
    
    .overview-title {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-lg);
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .overview-title i {
        color: var(--color-primary);
    }
    
    .overview-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .overview-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
    }
    
    .overview-item:last-child {
        margin-bottom: 0;
        padding-bottom: 0;
        border-bottom: none;
    }
    
    .overview-icon {
        width: 36px;
        height: 36px;
        background: rgba(26, 86, 219, 0.1);
        border-radius: var(--radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: var(--spacing-md);
        flex-shrink: 0;
    }
    
    .overview-icon i {
        color: var(--color-primary);
        font-size: var(--font-size-md);
    }
    
    .overview-text {
        flex: 1;
    }
    
    .overview-text h4 {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: 4px;
    }
    
    .overview-text p {
        font-size: var(--font-size-sm);
        color: var(--color-muted);
        line-height: 1.5;
        margin: 0;
    }
    
    /* 企业背书卡 */
    .endorsement-card {
        background: var(--color-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-2xl);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
    }
    
    .endorsement-title {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-lg);
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .endorsement-title i {
        color: var(--color-primary);
    }
    
    .endorsement-logo {
        display: flex;
        align-items: center;
        margin-bottom: var(--spacing-lg);
        font-size: var(--font-size-2xl);
        font-weight: var(--font-weight-bold);
        color: var(--color-text);
    }
    
    .endorsement-logo i {
        color: var(--color-primary);
        margin-right: var(--spacing-sm);
    }
    
    .endorsement-text {
        font-size: var(--font-size-md);
        line-height: 1.6;
        color: var(--color-text);
        margin-bottom: var(--spacing-xl);
    }
    
    .endorsement-links {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .endorsement-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--spacing-md);
        background: rgba(26, 86, 219, 0.05);
        border-radius: var(--radius-md);
        color: var(--color-text);
        text-decoration: none;
        transition: all var(--animation-speed-fast) ease;
        border: 1px solid transparent;
    }
    
    .endorsement-link:hover {
        background: rgba(26, 86, 219, 0.1);
        border-color: rgba(26, 86, 219, 0.2);
        transform: translateX(4px);
    }
    
    .endorsement-link span {
        font-weight: var(--font-weight-medium);
    }
    
    .endorsement-link i {
        color: var(--color-primary);
        transition: transform var(--animation-speed-fast) ease;
    }
    
    .endorsement-link:hover i {
        transform: translateX(4px);
    }
    
    /* ===== 响应式设计 ===== */
    @media (max-width: 1200px) {
        .certificates-grid-container {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 992px) {
        .wall-container {
            flex-direction: column;
        }
        
        .certificates-grid,
        .certificates-sidebar {
            flex: 0 0 100%;
            width: 100%;
        }
        
        .sidebar-sticky {
            position: static;
        }
    }
    
    @media (max-width: 768px) {
        .certificates-hero {
            height: 300px;
        }
        
        .certificates-hero h1 {
            font-size: 36px;
        }
        
        .certificates-hero .subtitle {
            font-size: var(--font-size-lg);
        }
        
        .certificates-grid-container {
            grid-template-columns: 1fr;
        }
        
        .certificates-wall {
            padding: var(--spacing-2xl) var(--spacing-md);
        }
        
        .certificates-intro {
            padding: var(--spacing-2xl) var(--spacing-md);
        }
        
        .certificates-authority {
            padding: var(--spacing-2xl) var(--spacing-md);
        }
        
        .intro-text {
            font-size: var(--font-size-md);
        }
        
    }
    
    @media (max-width: 480px) {
        .certificates-hero {
            height: 250px;
        }
        
        .certificates-hero h1 {
            font-size: 28px;
        }
        
        .certificates-hero .subtitle {
            font-size: var(--font-size-md);
        }
        
        .overview-card,
        .endorsement-card {
            padding: var(--spacing-xl);
        }
        
        .certificate-figure {
            height: 180px;
        }
    }
    
    /* 深色主题适配 */
[data-theme="dark"] .certificate-figure {
    background-color: #2d3748;
}

[data-theme="dark"] .certificate-image-container {
    background: #1e293b;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .certificate-hover-overlay {
    background: linear-gradient(
        to bottom,
        rgba(96, 165, 250, 0.95) 0%,
        rgba(96, 165, 250, 0.85) 100%
    );
}

[data-theme="dark"] .certificate-meta {
    background: #1e293b;
}

/* ----- 优化部分：右侧卡片背景与首屏一致 ----- */
.overview-card,
.endorsement-card {
    background-image: 
        url('data:image/svg+xml;base64,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'),
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.03) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.03) 75%, 
            rgba(0,0,0,0.03) 0);
    background-color: #f8f9fa;
    background-size: 
        600px 600px, 
        100px 100px, 
        100px 100px;
    background-position: 
        0 0, 
        0 0, 
        50px 50px;
    /* 保留原有边框、阴影和圆角 */
}

[data-theme="dark"] .overview-card,
[data-theme="dark"] .endorsement-card {
    background-image: 
        url('data:image/svg+xml;base64,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'),
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0), 
        linear-gradient(45deg, 
            rgba(0,0,0,0.1) 25%, 
            transparent 25%, 
            transparent 75%, 
            rgba(0,0,0,0.1) 75%, 
            rgba(0,0,0,0.1) 0);
    background-color: #1e293b;
    background-size: 
        600px 600px, 
        100px 100px, 
        100px 100px;
    background-position: 
        0 0, 
        0 0, 
        50px 50px;
}

/* ----- 面包屑导航增强 ----- */
.certificates-breadcrumb {
    background-color: rgba(248, 249, 250, 0.9);
    backdrop-filter: blur(2px);
    box-shadow: 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    margin-bottom: 2px;
    /* 保持原有内边距 */
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
}

[data-theme="dark"] .certificates-breadcrumb {
    background-color: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(2px);
    box-shadow: 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* 面包屑文字微调 */
.breadcrumb-list {
    font-weight: var(--font-weight-medium);
}
.breadcrumb-current {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

/* ===== 证书详情页面专用样式 ===== */

/* 证书详情容器 - 居中显示单张竖版证书 */
.certificate-detail-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);  /* 与下方导航区域留出间距 */
}

/* 证书详情卡片 - 整体尺寸再缩小十分之一 */
.certificate-detail-card {
    max-width: 486px;  /* 540px的90% = 486px */
    width: 100%;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    transition: all var(--animation-speed-normal) var(--animation-easing);
}

.certificate-detail-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* 证书图片区域 - 竖版设计 */
.certificate-detail-figure {
    width: 100%;
    background-color: #f9fafb;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-xl) * 0.8);  /* 内边距相应缩小 */
    /* 移除底部边框，因为卡片内只有图片 */
}

/* 证书图片容器 */
.certificate-detail-image-container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

/* 证书图片 - 竖版样式，保持原始比例 */
.certificate-detail-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform var(--animation-speed-slow) var(--animation-easing);
}

.certificate-detail-card:hover .certificate-detail-image {
    transform: scale(1.02);
}

/* 证书标签 */
.certificate-detail-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: 6px 12px;
    border-radius: var(--radius-md);
    z-index: 2;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ===== 独立导航区域 ===== */
.certificate-nav-section {
    width: 100%;
    max-width: 486px;  /* 与证书卡片同宽 */
    margin: 0 auto;     /* 居中显示 */
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* 上一页/下一页导航按钮容器 */
.certificate-nav-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    width: 100%;
}

/* 上一页/下一页按钮 - 独立样式，不与卡片关联 */
.certificate-nav-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-md);
    transition: all var(--animation-speed-fast) ease;
    box-shadow: var(--shadow-sm);
}

.certificate-nav-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.certificate-nav-btn.prev:hover i {
    transform: translateX(-4px);
}

.certificate-nav-btn.next:hover i {
    transform: translateX(4px);
}

.certificate-nav-btn i {
    font-size: var(--font-size-sm);
    transition: transform var(--animation-speed-fast) ease;
}

/* 返回列表按钮 - 独立样式 */
.certificate-back-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-card-bg);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-muted);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-md);
    transition: all var(--animation-speed-fast) ease;
    width: 100%;
    box-shadow: var(--shadow-sm);
}

.certificate-back-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.certificate-back-link i {
    font-size: var(--font-size-md);
}

.certificate-back-link:hover i {
    transform: scale(1.1);
}

/* 深色主题适配 */
[data-theme="dark"] .certificate-detail-figure {
    background-color: #2d3748;
}

[data-theme="dark"] .certificate-detail-image-container {
    background: #1e293b;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .certificate-nav-btn {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
}

[data-theme="dark"] .certificate-nav-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

[data-theme="dark"] .certificate-back-link {
    background: #1e293b;
    border-color: #334155;
    color: #94a3b8;
}

[data-theme="dark"] .certificate-back-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: #1e293b;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .certificate-detail-figure {
        padding: calc(var(--spacing-lg) * 0.8);
    }
    
    .certificate-nav-section {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .certificate-detail-card {
        max-width: 100%;
        margin: 0 var(--spacing-md);
    }
    
    .certificate-detail-figure {
        padding: var(--spacing-md);
    }
    
    .certificate-detail-badge {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        font-size: 10px;
        padding: 4px 8px;
    }
    
    .certificate-nav-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .certificate-nav-btn,
    .certificate-back-link {
        width: 100%;
        padding: var(--spacing-md);
    }
}