:root {
    /* 科技现代配色体系 */
    --primary-color: #0f2a5c; /* 深科技蓝 - 稳重可靠 */
    --secondary-color: #1e4c8c; /* 科技蓝 - 现代专业 */
    --accent-color: #3d8bf7; /* 亮科技蓝 - 科技感强调色 */
    --accent-secondary: #00d4aa; /* 科技青 - 现代活力 */
    --civil-color: #1a9e6e; /* 科技绿 - 民事分类 */
    --criminal-color: #e74c3c; /* 科技红 - 刑事分类 */
    --administrative-color: #3498db; /* 科技蓝 - 行政分类 */
    /* 中性色 */
    --light-color: #f8fafc; /* 浅灰蓝背景 */
    --medium-gray: #e2e8f0; /* 中灰色 */
    --dark-color: #1e293b; /* 深蓝灰文字 */
    /* 功能色 */
    --success-color: #10b981; /* 成功绿 */
    --warning-color: #f59e0b; /* 警告琥珀色 */
    --info-color: #3b82f6; /* 信息蓝 */

    --border-radius: 12px; /* 更现代圆角 */
    --box-shadow: 0 10px 25px rgba(15, 42, 92, 0.1); /* 更柔和阴影 */
    --transition-speed: 0.3s;
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #0f2a5c 0%, #1e4c8c 100%);
    --gradient-accent: linear-gradient(135deg, #3d8bf7 0%, #00d4aa 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    background-image: radial-gradient(circle at 10% 20%, rgba(62, 139, 247, 0.05) 0%, transparent 20%), radial-gradient(circle at 90% 80%, rgba(0, 212, 170, 0.05) 0%, transparent 20%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px; /* 增加左右内边距 */
}

/* 头部样式 - 科技感设计 */
header {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 8px 30px rgba(15, 42, 92, 0.15);
    border-bottom: 3px solid var(--accent-color);
}

.header-top {
    padding: 15px 0; /* 增加上下内边距 */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 移动端固定顶部区域 */
@media (max-width: 768px) {
    .header-top {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background: var(--gradient-primary);
        padding: 12px 20px; /* 增加左右内边距 */
        box-shadow: 0 4px 12px rgba(15, 42, 92, 0.2);
        height: 60px;
    }
}

.header-bottom {
    padding: 0 0 15px 0;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 移动端隐藏搜索框的类 */
header.hide-search .header-bottom {
    transform: translateY(-100%);
    opacity: 0;
    max-height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

/* 移动端显示搜索框的类 */
header.show-search .header-bottom {
    transform: translateY(0);
    opacity: 1;
    max-height: 100px;
}

.logo {
    display: flex;
    align-items: center;
}

    .logo h1 {
        font-size: 24px;
        margin-left: 12px;
        font-weight: 600;
        letter-spacing: 0.5px;
        background: linear-gradient(to right, #fff, #e2e8f0);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.logo-icon {
    font-size: 30px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 主题切换按钮 */
.theme-toggle {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 20px; /* 增加内边距 */
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
    backdrop-filter: blur(10px);
    font-weight: 500;
    white-space: nowrap;
    font-size: 14px;
}

    .theme-toggle:hover {
        background: rgba(255, 255, 255, 0.25);
        transform: translateY(-2px);
    }

    .theme-toggle i {
        margin-right: 8px;
    }

/* 搜索框区域 */
.search-box {
    display: flex;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 4px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

    .search-box input {
        flex: 1;
        padding: 12px 18px;
        border: none;
        border-radius: var(--border-radius);
        font-size: 16px;
        background: rgba(255, 255, 255, 0.95);
        color: var(--dark-color);
        transition: all var(--transition-speed);
    }

        .search-box input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(61, 139, 247, 0.3);
        }

    .search-box button {
        background: var(--gradient-accent);
        color: white;
        border: none;
        padding: 0 20px;
        border-radius: calc(var(--border-radius) - 2px);
        cursor: pointer;
        transition: all var(--transition-speed);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 600;
        margin-left: 8px;
    }

        .search-box button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(61, 139, 247, 0.4);
        }

        .search-box button i {
            margin-right: 8px;
        }

/* 导航样式 */
.main-nav {
    background-color: var(--secondary-color);
    padding: 15px 0;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    box-shadow: 0 4px 12px rgba(15, 42, 92, 0.1);
}

.nav-tabs {
    display: flex;
    list-style: none;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 5px;
}

    .nav-tabs li {
        margin-right: 25px;
    }

    .nav-tabs a {
        color: white;
        text-decoration: none;
        font-weight: 500;
        padding: 10px 16px;
        position: relative;
        transition: all var(--transition-speed);
        border-radius: 8px;
        display: flex;
        align-items: center;
    }

        .nav-tabs a i {
            margin-right: 8px;
            font-size: 18px;
        }

        .nav-tabs a:hover {
            color: white;
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }

        .nav-tabs a.active {
            color: white;
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

            .nav-tabs a.active::after {
                content: '';
                position: absolute;
                bottom: -5px;
                left: 50%;
                transform: translateX(-50%);
                width: 20px;
                height: 3px;
                background: var(--accent-secondary);
                border-radius: 2px;
            }

/* 主要内容区 */
.main-content {
    padding: 40px 0 20px; /* 增加上内边距 */
}

.section-title {
    margin-bottom: 30px;
    padding: 0 10px 15px; /* 增加左右内边距 */
    border-bottom: 3px solid;
    color: var(--primary-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-speed), border-color var(--transition-speed);
}

    .section-title h2 {
        font-size: 26px;
        display: flex;
        align-items: center;
        font-weight: 600;
    }

        .section-title h2 i {
            margin-right: 12px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-size: 28px;
        }

/* 删除原来的span样式，因为span标签将被删除 */

/* 网站卡片网格布局 - 科技卡片设计 */
.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.site-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    transition: all var(--transition-speed);
    border-top: 5px solid;
    position: relative;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
}

    .site-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 5px;
        background: var(--gradient-accent);
        opacity: 0;
        transition: opacity var(--transition-speed);
    }

    .site-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(15, 42, 92, 0.15);
    }

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

.site-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.site-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: white;
    font-size: 22px;
    transition: all var(--transition-speed);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.site-card:hover .site-icon {
    transform: scale(1.1);
}

.site-header h3 {
    font-size: 20px;
    color: var(--primary-color);
    flex: 1;
    transition: color var(--transition-speed);
    font-weight: 600;
}

.site-description {
    font-size: 15px;
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
    transition: color var(--transition-speed);
}

.site-url {
    font-size: 13px;
    color: #718096;
    padding: 12px;
    background-color: #f7fafc;
    border-radius: 8px;
    border-left: 4px solid #e2e8f0;
    word-break: break-all;
    opacity: 0;
    transition: all var(--transition-speed);
    position: absolute;
    bottom: 15px;
    left: 25px;
    right: 25px;
    max-height: 0;
    overflow: hidden;
    font-family: 'Courier New', monospace;
}

.site-card:hover .site-url {
    opacity: 1;
    max-height: 120px;
    border-left-color: var(--accent-color);
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #718096;
    margin-bottom: 40px;
    border-radius: var(--border-radius);
    background: white;
    box-shadow: var(--box-shadow);
}

    .empty-state i {
        font-size: 60px;
        margin-bottom: 20px;
        color: #e2e8f0;
        transition: color var(--transition-speed);
    }

    .empty-state h3 {
        font-size: 24px;
        margin-bottom: 10px;
        color: var(--primary-color);
    }

/* 页脚 */
footer {
    background: var(--gradient-primary);
    color: white;
    padding: 50px 0 25px;
    transition: background var(--transition-speed);
    border-top: 3px solid var(--accent-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 20px;
    color: #e2e8f0;
    transition: color var(--transition-speed);
    font-weight: 600;
}

.footer-section p {
    color: #cbd5e0;
    transition: color var(--transition-speed);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

    .footer-links li {
        margin-bottom: 12px;
    }

    .footer-links a {
        color: #cbd5e0;
        text-decoration: none;
        transition: all var(--transition-speed);
        display: flex;
        align-items: center;
    }

        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }

        .footer-links a i {
            margin-right: 10px;
            width: 20px;
        }

.copyright {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e0;
    font-size: 14px;
    transition: color var(--transition-speed), border-color var(--transition-speed);
}

/* 响应式设计 */
@media (max-width: 1100px) {
    .search-box {
        width: 300px;
    }

    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    }
}

@media (max-width: 992px) {
    .header-top {
        padding: 15px 0;
    }

    .header-bottom {
        padding-bottom: 15px;
    }
}

@media (max-width: 768px) {
    /* 移动端增加左右边距，提高可读性 */
    .container {
        padding: 0 20px; /* 增加移动端左右内边距 */
    }

    /* 修复移动端间距问题 */
    header {
        padding-top: 0;
    }

    .header-top {
        padding: 12px 20px; /* 增加移动端左右内边距 */
        height: 60px;
    }

    .header-bottom {
        margin-top: 60px;
        padding-top: 15px;
        padding-bottom: 15px;
    }

    /* 搜索框占满整个区域 */
    .search-box {
        width: 100%;
        padding: 3px;
    }

        .search-box input {
            padding: 12px 15px;
            font-size: 16px;
        }

        .search-box button {
            padding: 0 18px;
            font-size: 15px;
            white-space: nowrap;
        }

    .logo h1 {
        font-size: 20px;
    }

    .logo-icon {
        font-size: 26px;
    }

    .theme-toggle {
        padding: 8px 15px; /* 增加移动端内边距 */
        font-size: 13px;
    }

    .main-nav {
        margin-top: 0;
        padding: 12px 0;
    }

    .nav-tabs {
        padding-bottom: 0;
    }

        .nav-tabs li {
            margin-right: 15px;
        }

        .nav-tabs a {
            padding: 8px 12px;
            font-size: 14px;
        }

    .sites-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .section-title {
        flex-direction: column;
        align-items: flex-start;
        padding: 5px 5px 15px; /* 移动端也增加左右内边距 */
    }

        .section-title h2 {
            margin-bottom: 15px;
            font-size: 22px;
        }

    .site-card {
        padding: 20px;
        margin: 0 2px; /* 轻微内缩，增加视觉效果 */
    }

    .site-url {
        left: 20px;
        right: 20px;
        font-size: 12px;
    }

    /* 移动端优化：搜索框自动隐藏/显示 */
    .header-bottom {
        opacity: 1;
        transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s ease, max-height 0.4s ease, padding 0.4s ease, margin 0.4s ease;
    }

    /* 更新搜索框隐藏/显示的逻辑 */
    header.hide-search .header-bottom {
        transform: translateY(-100%);
        opacity: 0;
        max-height: 0;
        padding: 0;
        margin-top: 60px;
    }

    header.show-search .header-bottom {
        transform: translateY(0);
        opacity: 1;
        max-height: 100px;
        margin-top: 60px;
    }

    .main-content {
        padding-top: 20px;
    }
}

@media (max-width: 480px) {
    /* 在更小的屏幕上进一步优化边距 */
    .container {
        padding: 0 16px;
    }

    .header-top {
        padding: 10px 16px;
    }

    .header-bottom {
        padding: 12px 0 15px 0;
    }

    .logo h1 {
        font-size: 18px;
        margin-left: 8px;
    }

    .theme-toggle {
        padding: 6px 12px; /* 超小屏幕保持适当内边距 */
        font-size: 12px;
    }

        .theme-toggle i {
            margin-right: 5px;
        }

    /* 搜索框在超小屏幕上进一步优化 */
    .search-box {
        padding: 2px;
    }

        .search-box input {
            padding: 10px 12px;
            font-size: 15px;
        }

        .search-box button {
            padding: 0 12px;
            font-size: 14px;
            margin-left: 5px;
        }

            .search-box button i {
                margin-right: 5px;
            }

    .nav-tabs {
        padding-left: 0;
    }

        .nav-tabs li {
            margin-right: 10px;
        }

        .nav-tabs a {
            padding: 8px 10px;
            font-size: 13px;
        }

            .nav-tabs a i {
                font-size: 14px;
                margin-right: 5px;
            }

    .site-card {
        padding: 16px;
        margin: 0 1px;
    }

    .site-icon {
        width: 44px;
        height: 44px;
        font-size: 20px;
        margin-right: 12px;
    }

    .site-header h3 {
        font-size: 18px;
    }

    .site-description {
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 20px;
    }

        .section-title h2 i {
            font-size: 24px;
            margin-right: 8px;
        }

    .footer-section h3 {
        font-size: 18px;
    }

    .footer-section p {
        font-size: 14px;
    }

    .footer-links a {
        font-size: 14px;
    }
}

/* 分类特定样式 */
#civil .section-title {
    border-bottom-color: var(--civil-color);
}

#civil .site-card {
    border-top-color: var(--civil-color);
}

#criminal .section-title {
    border-bottom-color: var(--criminal-color);
}

#criminal .site-card {
    border-top-color: var(--criminal-color);
}

#administrative .section-title {
    border-bottom-color: var(--administrative-color);
}

#administrative .site-card {
    border-top-color: var(--administrative-color);
}

#other .section-title {
    border-bottom-color: var(--accent-color);
}

#other .site-card {
    border-top-color: var(--accent-color);
}

/* 图标颜色 */
#civil .site-icon {
    background: linear-gradient(135deg, var(--civil-color), #27ae60);
}

#criminal .site-icon {
    background: linear-gradient(135deg, var(--criminal-color), #c0392b);
}

#administrative .site-icon {
    background: linear-gradient(135deg, var(--administrative-color), #2980b9);
}

#other .site-icon {
    background: var(--gradient-accent);
}

/* === 暗色模式 === */
@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) {
        --primary-color: #1e293b;
        --secondary-color: #334155;
        --accent-color: #60a5fa;
        --accent-secondary: #2dd4bf;
        --civil-color: #10b981;
        --criminal-color: #f87171;
        --administrative-color: #60a5fa;
        --light-color: #0f172a;
        --dark-color: #f1f5f9;
        --medium-gray: #334155;
    }

        :root:not(.light-mode) body {
            background-color: var(--light-color);
            color: #e2e8f0;
            background-image: radial-gradient(circle at 10% 20%, rgba(96, 165, 250, 0.05) 0%, transparent 20%), radial-gradient(circle at 90% 80%, rgba(45, 212, 191, 0.05) 0%, transparent 20%);
        }

        :root:not(.light-mode) header {
            background: linear-gradient(135deg, #1e293b, #334155);
        }

        :root:not(.light-mode) .main-nav {
            background-color: #334155;
        }

        :root:not(.light-mode) .site-card {
            background-color: #1e293b;
            color: #e2e8f0;
            border: 1px solid #334155;
        }

        :root:not(.light-mode) .site-description {
            color: #94a3b8;
        }

        :root:not(.light-mode) .site-header h3 {
            color: #e2e8f0;
        }

        :root:not(.light-mode) .site-url {
            background-color: #334155;
            color: #94a3b8;
            border-left-color: #475569;
        }

        :root:not(.light-mode) .empty-state {
            background-color: #1e293b;
            color: #94a3b8;
            border: 1px solid #334155;
        }

            :root:not(.light-mode) .empty-state i {
                color: #475569;
            }

            :root:not(.light-mode) .empty-state h3 {
                color: #e2e8f0;
            }

        :root:not(.light-mode) footer {
            background: linear-gradient(135deg, #1e293b, #334155);
        }

        :root:not(.light-mode) .footer-links a {
            color: #94a3b8;
        }

            :root:not(.light-mode) .footer-links a:hover {
                color: #e2e8f0;
            }

        :root:not(.light-mode) .copyright {
            color: #94a3b8;
            border-top-color: #475569;
        }

        :root:not(.light-mode) .search-box {
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid #475569;
        }

            :root:not(.light-mode) .search-box input {
                background-color: #1e293b;
                color: #e2e8f0;
            }

                :root:not(.light-mode) .search-box input::placeholder {
                    color: #94a3b8;
                }

        :root:not(.light-mode) .theme-toggle {
            background: rgba(30, 41, 59, 0.5);
            border: 1px solid #475569;
        }

        :root:not(.light-mode) .footer-section h3 {
            color: #e2e8f0;
        }

        :root:not(.light-mode) .footer-section p {
            color: #94a3b8;
        }

        :root:not(.light-mode) .section-title h2 i {
            background: linear-gradient(to right, #60a5fa, #2dd4bf);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 暗色模式下标题颜色调整 */
        :root:not(.light-mode) .section-title {
            color: #f1f5f9;
        }

            :root:not(.light-mode) .section-title h2 {
                color: #f1f5f9;
            }
}

/* 手动暗色模式类 */
.dark-mode {
    --primary-color: #1e293b;
    --secondary-color: #334155;
    --accent-color: #60a5fa;
    --accent-secondary: #2dd4bf;
    --civil-color: #10b981;
    --criminal-color: #f87171;
    --administrative-color: #60a5fa;
    --light-color: #0f172a;
    --dark-color: #f1f5f9;
    --medium-gray: #334155;
}

    .dark-mode body {
        background-color: var(--light-color);
        color: #e2e8f0;
        background-image: radial-gradient(circle at 10% 20%, rgba(96, 165, 250, 0.05) 0%, transparent 20%), radial-gradient(circle at 90% 80%, rgba(45, 212, 191, 0.05) 0%, transparent 20%);
    }

    .dark-mode header {
        background: linear-gradient(135deg, #1e293b, #334155);
    }

    .dark-mode .main-nav {
        background-color: #334155;
    }

    .dark-mode .site-card {
        background-color: #1e293b;
        color: #e2e8f0;
        border: 1px solid #334155;
    }

    .dark-mode .site-description {
        color: #94a3b8;
    }

    .dark-mode .site-header h3 {
        color: #e2e8f0;
    }

    .dark-mode .site-url {
        background-color: #334155;
        color: #94a3b8;
        border-left-color: #475569;
    }

    .dark-mode .empty-state {
        background-color: #1e293b;
        color: #94a3b8;
        border: 1px solid #334155;
    }

        .dark-mode .empty-state i {
            color: #475569;
        }

        .dark-mode .empty-state h3 {
            color: #e2e8f0;
        }

    .dark-mode footer {
        background: linear-gradient(135deg, #1e293b, #334155);
    }

    .dark-mode .footer-links a {
        color: #94a3b8;
    }

        .dark-mode .footer-links a:hover {
            color: #e2e8f0;
        }

    .dark-mode .copyright {
        color: #94a3b8;
        border-top-color: #475569;
    }

    .dark-mode .search-box {
        background: rgba(30, 41, 59, 0.5);
        border: 1px solid #475569;
    }

        .dark-mode .search-box input {
            background-color: #1e293b;
            color: #e2e8f0;
        }

            .dark-mode .search-box input::placeholder {
                color: #94a3b8;
            }

    .dark-mode .theme-toggle {
        background: rgba(30, 41, 59, 0.5);
        border: 1px solid #475569;
    }

    .dark-mode .footer-section h3 {
        color: #e2e8f0;
    }

    .dark-mode .footer-section p {
        color: #94a3b8;
    }

    .dark-mode .section-title h2 i {
        background: linear-gradient(to right, #60a5fa, #2dd4bf);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    /* 暗色模式下标题颜色调整 */
    .dark-mode .section-title {
        color: #f1f5f9;
    }

        .dark-mode .section-title h2 {
            color: #f1f5f9;
        }

/* 手动亮色模式类 - 覆盖系统偏好 */
.light-mode {
    /* 恢复亮色主题变量 */
    --primary-color: #0f2a5c;
    --secondary-color: #1e4c8c;
    --accent-color: #3d8bf7;
    --accent-secondary: #00d4aa;
    --civil-color: #1a9e6e;
    --criminal-color: #e74c3c;
    --administrative-color: #3498db;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
}

/* ====== 鼠标悬停显示二维码样式 ====== */
.wechat-contact-item {
    position: relative;
}

.contact-wechat-link {
    position: relative;
    cursor: pointer;
}

.wechat-qr-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    z-index: 1000;
    pointer-events: none;
    margin-bottom: 15px;
    width: 180px;
}

.contact-wechat-link:hover .wechat-qr-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.qr-tooltip-content {
    background-color: white;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 10px 30px rgba(15, 42, 92, 0.2);
    border: 1px solid var(--accent-color);
    position: relative;
    text-align: center;
}

.qr-code-image {
    width: 150px;
    height: 150px;
    margin: 0 auto 10px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e2e8f0;
    overflow: hidden;
}

    .qr-code-image img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

.qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    padding: 20px;
}

    .qr-placeholder i {
        font-size: 40px;
        margin-bottom: 10px;
        color: var(--accent-color);
        opacity: 0.7;
    }

    .qr-placeholder span {
        font-size: 12px;
        color: #4a5568;
    }

.qr-tooltip-info {
    margin-top: 10px;
}

    .qr-tooltip-info p {
        margin: 5px 0;
        font-size: 14px;
        color: var(--primary-color);
    }

    .qr-tooltip-info .qr-tip {
        font-size: 12px;
        color: #718096;
        margin-top: 5px;
    }

.qr-tooltip-arrow {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--accent-color);
}

    .qr-tooltip-arrow::before {
        content: '';
        position: absolute;
        top: -9px;
        left: -8px;
        border-left: 8px solid transparent;
        border-right: 8px solid transparent;
        border-top: 8px solid white;
    }

/* 暗色模式适配 */
@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) .qr-tooltip-content {
        background-color: #1e293b;
        border-color: var(--accent-color);
    }

    :root:not(.light-mode) .qr-code-image {
        background: linear-gradient(135deg, #334155 0%, #475569 100%);
        border-color: #475569;
    }

    :root:not(.light-mode) .qr-placeholder {
        color: #e2e8f0;
    }

        :root:not(.light-mode) .qr-placeholder i {
            color: var(--accent-color);
        }

        :root:not(.light-mode) .qr-placeholder span {
            color: #cbd5e0;
        }

    :root:not(.light-mode) .qr-tooltip-info p {
        color: #e2e8f0;
    }

    :root:not(.light-mode) .qr-tooltip-info .qr-tip {
        color: #94a3b8;
    }

    :root:not(.light-mode) .qr-tooltip-arrow::before {
        border-top-color: #1e293b;
    }
}

.dark-mode .qr-tooltip-content {
    background-color: #1e293b;
    border-color: var(--accent-color);
}

.dark-mode .qr-code-image {
    background: linear-gradient(135deg, #334155 0%, #475569 100%);
    border-color: #475569;
}

.dark-mode .qr-placeholder {
    color: #e2e8f0;
}

    .dark-mode .qr-placeholder i {
        color: var(--accent-color);
    }

    .dark-mode .qr-placeholder span {
        color: #cbd5e0;
    }

.dark-mode .qr-tooltip-info p {
    color: #e2e8f0;
}

.dark-mode .qr-tooltip-info .qr-tip {
    color: #94a3b8;
}

.dark-mode .qr-tooltip-arrow::before {
    border-top-color: #1e293b;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .wechat-qr-tooltip {
        transform: translateX(-50%) translateY(10px) scale(0.9);
        transform-origin: bottom center;
    }

    .contact-wechat-link:hover .wechat-qr-tooltip {
        transform: translateX(-50%) translateY(0) scale(1);
    }

    .qr-code-image {
        width: 120px;
        height: 120px;
    }

    .qr-placeholder i {
        font-size: 30px;
    }
}

/* 防止在非常小的屏幕上显示太大 */
@media (max-width: 480px) {
    .wechat-qr-tooltip {
        width: 160px;
    }

    .qr-tooltip-content {
        padding: 12px;
    }
}