/* ===== 全局变量 ===== */
:root {
    --deep-blue: #0A1A2B;
    --medium-blue: #1A3A4F;
    --light-blue: #1E3A4F;
    --accent-blue: #2D7EE7;
    --accent-blue-light: #5BA1F0;
    --text-dark: #2c3e50;
    --text-light: #5f7d9c;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --border-light: #eef2f6;
}

/* ===== 1. 全局基础 ===== */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.7;
    padding-top: 80px;
}

.site-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
    background: var(--bg-white);
    border-radius: 30px 30px 0 0;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.02);
    min-height: 60vh;
}

/* ===== 2. 一级导航（核心修复区） ===== */
.main-navigation {
    background: linear-gradient(135deg, var(--deep-blue), var(--medium-blue));
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    box-shadow: 0 8px 20px rgba(0, 20, 40, 0.3);
    border-bottom: 1px solid rgba(45, 126, 231, 0.3);
}

.main-navigation .inside-navigation {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.main-navigation .site-logo img,
.main-navigation .navigation-branding img {
    max-height: 45px;
    filter: brightness(1.1);
}

/* 一级菜单项 - 强制白色字体 */
.main-navigation .main-nav > ul > li > a {
    color: #ffffff !important; /* 强制显示白色文字 */
    font-size: 16px;
    font-weight: 500;
    padding: 16px 18px;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
}

/* 一级菜单悬停/激活效果 */
.main-navigation .main-nav > ul > li:hover > a,
.main-navigation .main-nav > ul > li.current-menu-item > a,
.main-navigation .main-nav > ul > li.current-page-ancestor > a {
    color: #ffffff !important;
    background: var(--accent-blue) !important;
}

/* 一级菜单下划线特效 */
.main-navigation .main-nav > ul > li:hover > a::after,
.main-navigation .main-nav > ul > li.current-menu-item > a::after,
.main-navigation .main-nav > ul > li.current-page-ancestor > a::after {
    content: '';
    position: absolute;
    bottom: 15px;
    left: 18px;
    right: 18px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light));
    border-radius: 3px;
    box-shadow: 0 0 10px var(--accent-blue);
}

/* ===== 3. 二级/三级菜单（PC端核心修复区） ===== */
.main-navigation .main-nav ul ul {
    background: var(--light-blue) !important; /* 强制深色背景，防止变白 */
    border-radius: 0 0 16px 16px;
    box-shadow: 0 15px 30px rgba(0, 20, 40, 0.4);
    padding: 8px 0;
    border: 1px solid rgba(45, 126, 231, 0.3);
    border-top: 2px solid var(--accent-blue);
    min-width: 180px;
    animation: fadeInDown 0.25s ease;
}

.main-navigation .main-nav ul ul li a {
    color: rgba(255, 255, 255, 0.9) !important; /* 子菜单文字默认浅色 */
    padding: 14px 25px;
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
    white-space: nowrap;
    position: relative;
}

.main-navigation .main-nav ul ul li:last-child a {
    border-bottom: none;
}

/* 子菜单悬停效果 */
.main-navigation .main-nav ul ul li:hover > a {
    color: #fff !important;
    background: linear-gradient(90deg, #1E5BB0, #0A4A8A) !important;
    padding-left: 35px;
}

.main-navigation .main-nav ul ul li:hover > a::before {
    content: '→';
    position: absolute;
    left: 12px;
    color: rgba(255,255,255,0.9);
    font-size: 14px;
}

/* 三级菜单 */
.main-navigation .main-nav ul ul ul {
    background: #2A4A60 !important;
    border-radius: 8px;
    border-left: 2px solid var(--accent-blue);
    margin-top: -5px;
}

/* 有子菜单的箭头 */
.main-navigation .main-nav ul ul .menu-item-has-children > a::after {
    content: '›';
    font-size: 20px;
    float: right;
    margin-left: 15px;
    color: var(--accent-blue);
    font-weight: 400;
}

/* 菜单定位 */
.main-navigation .main-nav > ul > li:hover > ul {
    top: 100%;
    left: 10px;
}

.main-navigation .main-nav ul ul li:hover > ul {
    left: calc(100% + 2px);
    top: -8px;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 4. 手机端菜单 ===== */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    button.menu-toggle,
    .main-navigation .menu-toggle {
        display: block !important;
        background: var(--accent-blue);
        color: #fff;
        border: none;
        border-radius: 4px;
        padding: 8px 12px;
        font-size: 14px;
        margin: 8px 12px;
        z-index: 10001;
    }
    .main-navigation .main-nav > ul {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        overflow-y: auto;
        max-height: 80vh;
        z-index: 9999;
        padding: 10px 0;
        border-top: 1px solid #eee;
    }
    .main-navigation.toggled .main-nav > ul {
        display: flex;
    }
    .main-navigation .main-nav ul li {
        flex: none;
        margin: 0;
        position: relative;
    }
    .main-navigation .main-nav ul li a {
        background: transparent;
        color: #333 !important; /* 手机端一级菜单强制深色 */
        font-size: 16px;
        padding: 12px 20px;
        display: block;
        white-space: normal;
        border-bottom: 1px solid #f0f0f0;
    }
    .main-navigation .main-nav ul li:last-child a {
        border-bottom: none;
    }
    .main-navigation .main-nav ul ul {
        position: static;
        transform: none;
        width: 100%;
        background: #ffffff;
        border: 1px solid #f0f0f0;
        border-width: 1px 0;
        border-radius: 0;
        box-shadow: none;
        padding: 0;
    }
    .main-navigation .main-nav ul ul li a {
        padding-left: 40px;
        background: #ffffff;
        color: #333 !important; /* 手机端子菜单强制深色 */
        font-size: 15px;
    }
    .main-navigation .main-nav ul ul .menu-item-has-children > a::after {
        content: '';
    }
}

/* ===== 5. 正文内容样式 ===== */

/* 基础文本 */
.single .entry-content,
.page .entry-content {
    max-width: 100% !important;
    font-size: 16px !important;
    line-height: 1.75 !important;
    color: #2c3e50 !important;
}

/* 表格 */
.single .entry-content table,
.single .entry-content .wp-block-table,
.page .entry-content table,
.page .entry-content .wp-block-table {
    display: table !important;
    width: 100% !important;
    background: #fff !important;
    border-radius: 16px !important;
    overflow: hidden !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08) !important;
    margin: 1.5em 0 !important;
    border-collapse: collapse !important;
}
.single .entry-content th,
.page .entry-content th {
    background: #0A1A2B !important;
    color: #fff !important;
    padding: 12px 15px !important;
    font-weight: 600 !important;
}
.single .entry-content td,
.page .entry-content td {
    background: #fff !important;
    padding: 10px 15px !important;
    border-bottom: 1px solid #eef2f6 !important;
}
.single .entry-content tr:last-child td,
.page .entry-content tr:last-child td {
    border-bottom: none !important;
}
.single .entry-content tbody tr:hover td,
.page .entry-content tbody tr:hover td {
    background: #f8fafc !important;
}

/* 引用块 */
.single .entry-content blockquote,
.page .entry-content blockquote {
    background: #f0f7ff !important;
    border-left: 5px solid #2D7EE7 !important;
    border-radius: 16px !important;
    padding: 1.2em 1.8em !important;
    margin: 1.5em 0 !important;
    color: #1e3a4f !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05) !important;
}

/* 代码块 */
.single .entry-content pre,
.single .entry-content .wp-block-code,
.page .entry-content pre,
.page .entry-content .wp-block-code {
    background: #1e2a36 !important;
    color: #e2e8f0 !important;
    border-radius: 16px !important;
    padding: 1.2em !important;
    overflow-x: auto !important;
    margin: 1.5em 0 !important;
}
.single .entry-content code,
.page .entry-content code {
    background: #f1f5f9 !important;
    color: #c7254e !important;
    padding: 0.2em 0.4em !important;
    border-radius: 6px !important;
}

/* 图片 */
.single .entry-content img,
.page .entry-content img {
    border-radius: 16px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05) !important;
    max-width: 100% !important;
    height: auto !important;
}

/* 音频 */
.single .entry-content .wp-block-audio audio,
.page .entry-content .wp-block-audio audio {
    width: 100% !important;
    border-radius: 40px !important;
}

/* 标题 */
.single .entry-content h2,
.page .entry-content h2 {
    font-size: 1.8rem !important;
    margin-top: 2em !important;
    margin-bottom: 0.8em !important;
    padding-bottom: 0.3em !important;
    border-bottom: 3px solid #2D7EE7 !important;
    display: inline-block !important;
    font-weight: 700 !important;
}
.single .entry-content h3,
.page .entry-content h3 {
    font-size: 1.5rem !important;
    margin-top: 1.6em !important;
    margin-bottom: 0.6em !important;
    font-weight: 600 !important;
    color: #1e4660 !important;
}

/* WooCommerce 结账按钮 */
.wc-block-checkout .wp-block-woocommerce-checkout-actions-block .wc-block-components-button {
    background-color: #007cba !important;
    color: #fff !important;
}
.wc-block-checkout .wp-block-woocommerce-checkout-actions-block .wc-block-components-button:hover {
    background-color: #005a87 !important;
    color: #fff !important;
}