/*
Theme Name: vkanke 微瞰
Theme URI: https://vkanke.com
Author: 渔夫
Author URI: https://vkanke.com
Description: 微瞰 vkanke 通用企业站主题。基于静态通用模版（sidebar+content 布局）移植，零外部依赖（内联 SVG 图标、不引 Font Awesome/jQuery/Google Fonts），针对国内访问速度深度优化，内置 CPT（主题/插件/服务/团队/历程）+ 一键导入演示数据，适合做中小型 B2B 企业站、咨询服务站、自媒体矩阵主站。
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.2
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: vkanke
Tags: one-column, two-columns, custom-menu, custom-logo, featured-images, threaded-comments, translation-ready, block-templates, wide-blocks

主色调：#1e3c72 → #2a5298 渐变（深蓝）
布局：左侧 20% sidebar + 右侧 80% content 的 flex 双栏，移动端折叠为单栏。
性能：去 jQuery、去 emoji 脚本、去 wp-embed、合 head 标签、图片原生懒加载、CSS/JS 单文件合并、defer、SVG 内联。
*/

/* ===========================
   1. 重置与基础
   =========================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0f2a5c 0%, #1e3c72 50%, #2a5298 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

a {
    color: #1e3c72;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #2a5298;
}

button {
    font-family: inherit;
    cursor: pointer;
}

.screen-reader-text {
    position: absolute !important;
    clip: rect(1px, 1px, 1px, 1px);
    width: 1px;
    height: 1px;
    overflow: hidden;
    white-space: nowrap;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #1e3c72;
    color: #fff;
    padding: 10px 16px;
    z-index: 10000;
}

.skip-link:focus {
    left: 8px;
    top: 8px;
}

/* ===========================
   2. 容器布局
   =========================== */
.vk-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
}

.vk-sidebar {
    width: 20%;
    min-width: 240px;
    background: rgba(15, 42, 92, 0.96);
    color: #fff;
    padding: 30px 20px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.vk-content {
    width: 80%;
    flex: 1;
    padding: 40px;
    background: #fff;
    overflow-y: auto;
}

/* ===========================
   3. 侧栏（站点头、导航、联系卡）
   =========================== */
.vk-site-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.vk-site-logo {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.vk-site-logo svg {
    width: 32px;
    height: 32px;
    fill: #4dabf7;
}

.vk-site-tagline {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
    margin-top: 6px;
}

.vk-nav-menu {
    list-style: none;
    margin-bottom: 30px;
}

.vk-nav-item {
    margin-bottom: 6px;
}

.vk-nav-link {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    font-weight: 500;
    font-size: 14px;
}

.vk-nav-link:hover,
.vk-nav-link:focus {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateX(4px);
}

.vk-nav-link.current-menu-item,
.vk-nav-link.current_page_item {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-left: 4px solid #4dabf7;
}

.vk-nav-icon {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    fill: currentColor;
    flex-shrink: 0;
}

.vk-sidebar-card {
    background: rgba(255, 255, 255, 0.08);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    line-height: 1.8;
}

.vk-sidebar-card h3 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 10px;
}

.vk-sidebar-card svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
    margin-right: 6px;
    vertical-align: -2px;
}

/* 移动端菜单按钮 */
.vk-mobile-menu-btn {
    display: none;
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
    background: #1e3c72;
    color: #fff;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
}

.vk-mobile-menu-btn svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

/* ===========================
   4. 内容区
   =========================== */
.vk-content-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.vk-content-title {
    font-size: 30px;
    color: #1e3c72;
    margin-bottom: 8px;
    font-weight: 700;
    line-height: 1.3;
}

.vk-content-subtitle {
    font-size: 15px;
    color: #666;
}

/* 面包屑 */
.vk-breadcrumb {
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
}

.vk-breadcrumb a {
    color: #1e3c72;
}

.vk-breadcrumb .vk-breadcrumb-sep {
    margin: 0 6px;
    color: #999;
}

/* ===========================
   5. 卡片
   =========================== */
.vk-card {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.vk-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
}

.vk-card-title {
    font-size: 20px;
    color: #1e3c72;
    margin-bottom: 16px;
    font-weight: 600;
}

.vk-card-dark {
    background: linear-gradient(135deg, #0f2a5c 0%, #1e3c72 50%, #2a5298 100%);
    color: #fff;
}

.vk-card-dark .vk-card-title,
.vk-card-dark h2 {
    color: #fff;
}

.vk-card-dark p,
.vk-card-dark li {
    color: rgba(255, 255, 255, 0.92);
}

/* ===========================
   6. 网格（产品/插件/服务卡片）
   =========================== */
.vk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 22px;
    margin-top: 24px;
}

.vk-grid-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
}

.vk-grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.vk-grid-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
}

.vk-grid-img-placeholder {
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    text-align: center;
    padding: 16px;
}

.vk-grid-content {
    padding: 18px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.vk-grid-title {
    font-size: 17px;
    color: #1e3c72;
    margin-bottom: 8px;
    font-weight: 600;
    line-height: 1.4;
}

.vk-grid-title a {
    color: inherit;
}

.vk-grid-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    flex: 1;
    margin-bottom: 12px;
}

.vk-grid-price {
    color: #e74c3c;
    font-weight: 700;
    font-size: 18px;
}

.vk-grid-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
}

/* ===========================
   7. 按钮
   =========================== */
.vk-btn {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff !important;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    font-size: 14px;
    line-height: 1.4;
}

.vk-btn:hover,
.vk-btn:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(30, 60, 114, 0.3);
    color: #fff;
}

.vk-btn-outline {
    background: transparent;
    border: 2px solid #1e3c72;
    color: #1e3c72 !important;
}

.vk-btn-outline:hover {
    background: #1e3c72;
    color: #fff !important;
}

.vk-btn-light {
    background: #fff;
    color: #1e3c72 !important;
}

.vk-btn-light:hover {
    background: #f0f0f0;
    color: #1e3c72 !important;
}

/* ===========================
   8. 新闻列表
   =========================== */
.vk-news-item {
    display: flex;
    margin-bottom: 28px;
    padding: 22px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.vk-news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
    border-color: #1e3c72;
}

.vk-news-date {
    flex: 0 0 90px;
    text-align: center;
    margin-right: 22px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    border-radius: 10px;
    padding: 16px 8px;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 110px;
}

.vk-news-day {
    font-size: 30px;
    font-weight: 700;
    line-height: 1;
}

.vk-news-month {
    font-size: 14px;
    margin-top: 6px;
}

.vk-news-year {
    font-size: 12px;
    margin-top: 4px;
    opacity: 0.85;
}

.vk-news-body {
    flex: 1;
}

.vk-news-title {
    font-size: 20px;
    color: #1e3c72;
    margin-bottom: 10px;
    font-weight: 700;
    line-height: 1.35;
}

.vk-news-title a {
    color: inherit;
}

.vk-news-excerpt {
    color: #666;
    line-height: 1.7;
    margin-bottom: 14px;
    font-size: 14px;
}

.vk-news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: #888;
    flex-wrap: wrap;
}

.vk-news-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.vk-news-meta svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* ===========================
   9. 分页
   =========================== */
.vk-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin: 24px 0;
}

.vk-pagination a,
.vk-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border-radius: 6px;
    background: #f8f9fa;
    color: #555;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid #e9ecef;
    transition: all 0.2s ease;
    font-size: 14px;
}

.vk-pagination a:hover {
    background: #1e3c72;
    color: #fff;
    border-color: #1e3c72;
}

.vk-pagination .current {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    border-color: #1e3c72;
}

/* ===========================
   10. 标签
   =========================== */
.vk-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.vk-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #f8f9fa;
    color: #555;
    text-decoration: none;
    border-radius: 14px;
    font-size: 13px;
    border: 1px solid #e9ecef;
    transition: all 0.2s ease;
}

.vk-tag:hover {
    background: #1e3c72;
    color: #fff;
    border-color: #1e3c72;
}

/* ===========================
   11. 服务卡 / 服务流程
   =========================== */
.vk-service-card {
    background: #fff;
    border-radius: 12px;
    padding: 26px 22px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.vk-service-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
}

.vk-service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
    border-color: #1e3c72;
}

.vk-service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.vk-service-icon svg {
    width: 30px;
    height: 30px;
    fill: #1e3c72;
}

.vk-service-card:hover .vk-service-icon {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
}

.vk-service-card:hover .vk-service-icon svg {
    fill: #fff;
}

.vk-service-title {
    font-size: 19px;
    color: #1e3c72;
    margin-bottom: 12px;
    font-weight: 700;
}

.vk-service-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.vk-service-features {
    list-style: none;
    text-align: left;
    margin: 14px 0;
    padding: 0;
}

.vk-service-features li {
    padding: 6px 0 6px 22px;
    font-size: 13px;
    color: #555;
    position: relative;
    border-bottom: 1px dashed #f0f0f0;
}

.vk-service-features li:last-child {
    border-bottom: none;
}

.vk-service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

.vk-price-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #1e3c72;
    font-weight: 700;
    border-radius: 14px;
    border: 1px solid #dee2e6;
    font-size: 14px;
}

/* 服务流程（时间线样式） */
.vk-process {
    position: relative;
    margin-top: 30px;
    padding-left: 60px;
}

.vk-process::before {
    content: "";
    position: absolute;
    left: 22px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #1e3c72, #2a5298);
    border-radius: 2px;
}

.vk-process-step {
    position: relative;
    margin-bottom: 26px;
}

.vk-process-number {
    position: absolute;
    left: -60px;
    top: 0;
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(30, 60, 114, 0.25);
}

.vk-process-content {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #1e3c72;
}

.vk-process-content h3 {
    font-size: 18px;
    color: #1e3c72;
    margin-bottom: 8px;
    font-weight: 700;
}

.vk-process-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.65;
}

/* ===========================
   12. 团队
   =========================== */
.vk-team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-top: 22px;
}

.vk-team-member {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.vk-team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
    border-color: #1e3c72;
}

.vk-team-avatar {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 64px;
    font-weight: 700;
}

.vk-team-info {
    padding: 22px;
    text-align: center;
}

.vk-team-name {
    font-size: 18px;
    color: #1e3c72;
    margin-bottom: 4px;
    font-weight: 700;
}

.vk-team-position {
    font-size: 14px;
    color: #3498db;
    margin-bottom: 10px;
    font-weight: 600;
}

.vk-team-desc {
    color: #666;
    line-height: 1.6;
    font-size: 13px;
}

/* ===========================
   13. 时间线（历程）
   =========================== */
.vk-timeline {
    position: relative;
    padding: 20px 0 20px 90px;
}

.vk-timeline::before {
    content: "";
    position: absolute;
    left: 32px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #1e3c72, #2a5298);
}

.vk-timeline-item {
    position: relative;
    margin-bottom: 28px;
}

.vk-timeline-year {
    position: absolute;
    left: -90px;
    top: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(30, 60, 114, 0.25);
}

.vk-timeline-content {
    background: #fff;
    padding: 20px 22px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #1e3c72;
}

.vk-timeline-content h3 {
    font-size: 18px;
    color: #1e3c72;
    margin-bottom: 6px;
    font-weight: 700;
}

.vk-timeline-content p {
    color: #666;
    line-height: 1.65;
    font-size: 14px;
}

/* ===========================
   14. 合作伙伴 / 价值卡 / 联系
   =========================== */
.vk-partners {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 18px;
    margin-top: 20px;
}

.vk-partner {
    background: #fff;
    border-radius: 12px;
    padding: 26px 14px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.vk-partner:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
    border-color: #1e3c72;
}

.vk-partner-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vk-partner-icon svg {
    width: 100%;
    height: 100%;
    fill: #1e3c72;
    transition: fill 0.3s ease;
}

.vk-partner:hover .vk-partner-icon svg {
    fill: #2a5298;
}

.vk-partner-name {
    font-size: 15px;
    color: #1e3c72;
    font-weight: 600;
}

.vk-value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.vk-value-card {
    background: #fff;
    border-radius: 12px;
    padding: 26px 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.vk-value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}

.vk-value-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
}

.vk-value-icon svg {
    width: 30px;
    height: 30px;
}

.vk-value-card h3 {
    font-size: 17px;
    color: #1e3c72;
    margin-bottom: 8px;
}

.vk-value-card p {
    color: #666;
    font-size: 13px;
    line-height: 1.6;
}

.vk-contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-top: 22px;
}

.vk-contact-item {
    background: #fff;
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.vk-contact-item:hover {
    border-color: #1e3c72;
}

.vk-contact-item svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    fill: #1e3c72;
}

.vk-contact-item h3 {
    font-size: 16px;
    color: #1e3c72;
    margin-bottom: 4px;
}

.vk-contact-item p {
    color: #666;
    font-size: 13px;
    line-height: 1.5;
}

/* ===========================
   15. 价格方案（主题详情）
   =========================== */
.vk-price-box {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    margin: 24px 0;
    position: relative;
    overflow: hidden;
}

.vk-price-original {
    text-decoration: line-through;
    color: rgba(255, 255, 255, 0.65);
    font-size: 18px;
    margin-right: 12px;
}

.vk-price-current {
    font-size: 38px;
    font-weight: bold;
    color: #ffd700;
}

.vk-pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-top: 22px;
}

.vk-pricing-card {
    background: #fff;
    border-radius: 12px;
    padding: 26px 22px;
    text-align: center;
    box-shadow: 0 6px 22px rgba(0, 0, 0, 0.06);
    border: 2px solid #f0f0f0;
    transition: all 0.3s ease;
    position: relative;
}

.vk-pricing-card:hover {
    transform: translateY(-6px);
    border-color: #1e3c72;
}

.vk-pricing-card.is-popular {
    border-color: #1e3c72;
}

.vk-pricing-card.is-popular::before {
    content: "最受欢迎";
    position: absolute;
    top: 14px;
    right: -32px;
    background: #e74c3c;
    color: #fff;
    padding: 4px 36px;
    font-size: 11px;
    font-weight: 700;
    transform: rotate(45deg);
}

.vk-pricing-title {
    font-size: 20px;
    color: #1e3c72;
    margin-bottom: 8px;
    font-weight: 700;
}

.vk-pricing-price {
    font-size: 32px;
    color: #e74c3c;
    font-weight: 800;
    margin: 12px 0 6px;
}

.vk-pricing-period {
    font-size: 13px;
    color: #888;
}

.vk-pricing-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    text-align: left;
}

.vk-pricing-features li {
    padding: 8px 0 8px 22px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 13px;
    color: #555;
    position: relative;
}

.vk-pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

.vk-pricing-features li.is-disabled {
    color: #ccc;
}

.vk-pricing-features li.is-disabled::before {
    content: "✗";
    color: #e74c3c;
}

/* ===========================
   16. 文章详情
   =========================== */
.vk-article {
    background: #fff;
    border-radius: 12px;
    padding: 26px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
}

.vk-article-meta {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: #888;
    font-size: 14px;
    margin: 14px 0 22px;
}

.vk-article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.vk-article-meta svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.vk-article-image {
    margin-bottom: 22px;
    border-radius: 10px;
    overflow: hidden;
}

.vk-article-image img {
    width: 100%;
    height: auto;
}

.vk-article-content {
    font-size: 16px;
    line-height: 1.85;
    color: #444;
}

.vk-article-content h2 {
    font-size: 22px;
    color: #1e3c72;
    margin: 26px 0 14px;
    font-weight: 700;
}

.vk-article-content h3 {
    font-size: 18px;
    color: #1e3c72;
    margin: 22px 0 10px;
    font-weight: 700;
}

.vk-article-content p {
    margin-bottom: 14px;
}

.vk-article-content ul,
.vk-article-content ol {
    margin: 14px 0 14px 24px;
}

.vk-article-content li {
    margin-bottom: 6px;
}

.vk-article-content a {
    color: #1e3c72;
    border-bottom: 1px solid rgba(30, 60, 114, 0.3);
}

.vk-article-content a:hover {
    border-bottom-color: #1e3c72;
}

.vk-article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 12px 0;
}

/* ===========================
   17. 评论
   =========================== */
.vk-comments-title {
    font-size: 18px;
    color: #1e3c72;
    margin-bottom: 18px;
    font-weight: 700;
}

.vk-comment {
    display: flex;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
}

.vk-comment-avatar {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.vk-comment-content {
    flex: 1;
}

.vk-comment-author {
    font-weight: 700;
    color: #1e3c72;
}

.vk-comment-date {
    color: #999;
    font-size: 12px;
    margin-left: 10px;
}

.vk-comment-text {
    margin-top: 6px;
    color: #555;
    line-height: 1.65;
}

.vk-comment-form .vk-form-row {
    margin-bottom: 14px;
}

.vk-comment-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1e3c72;
    font-size: 14px;
}

.vk-comment-form input,
.vk-comment-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.vk-comment-form input:focus,
.vk-comment-form textarea:focus {
    outline: none;
    border-color: #1e3c72;
    box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.1);
}

/* ===========================
   18. 工具类
   =========================== */
.vk-text-center { text-align: center; }
.vk-mt-10 { margin-top: 10px; }
.vk-mt-20 { margin-top: 20px; }
.vk-mt-30 { margin-top: 30px; }
.vk-mt-40 { margin-top: 40px; }
.vk-mb-10 { margin-bottom: 10px; }
.vk-mb-20 { margin-bottom: 20px; }
.vk-mb-30 { margin-bottom: 30px; }
.vk-flex { display: flex; }
.vk-justify-between { justify-content: space-between; }
.vk-align-center { align-items: center; }
.vk-gap-10 { gap: 10px; }

/* ===========================
   19. WP 核心样式兼容
   =========================== */
.alignleft { float: left; margin: 0 18px 14px 0; }
.alignright { float: right; margin: 0 0 14px 18px; }
.aligncenter { display: block; margin: 14px auto; }
.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: 13px; color: #888; text-align: center; margin-top: 6px; }
.sticky { position: relative; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin: 16px 0; }
.gallery-item img { width: 100%; height: auto; border-radius: 6px; }

/* 搜索高亮 */
.vk-search-highlight {
    background: #fff3a0;
    padding: 0 2px;
    border-radius: 2px;
}

/* ===========================
   20. 响应式
   =========================== */
@media (max-width: 1200px) {
    .vk-sidebar { width: 26%; }
    .vk-content { width: 74%; }
}

@media (max-width: 992px) {
    .vk-container { flex-direction: column; }
    .vk-sidebar {
        width: 100%;
        min-width: 0;
        height: auto;
        position: static;
        padding: 18px;
    }
    .vk-content { width: 100%; padding: 24px 18px; }
    .vk-mobile-menu-btn { display: flex; }
    .vk-nav-menu { display: none; }
    .vk-nav-menu.is-open { display: block; }
}

@media (max-width: 768px) {
    .vk-news-item {
        flex-direction: column;
        padding: 18px;
    }
    .vk-news-date {
        flex: 0 0 auto;
        margin: 0 0 14px;
        width: 90px;
        align-self: center;
    }
    .vk-news-title { font-size: 17px; }
    .vk-content-title { font-size: 22px; }
    .vk-content { padding: 18px 14px; }
    .vk-grid { grid-template-columns: 1fr; }
    .vk-team-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .vk-timeline { padding-left: 70px; }
    .vk-timeline-year { left: -70px; width: 50px; height: 50px; font-size: 13px; }
    .vk-process { padding-left: 50px; }
    .vk-process-number { left: -50px; width: 38px; height: 38px; font-size: 15px; }
}

@media (max-width: 576px) {
    .vk-card { padding: 18px; }
    .vk-btn { padding: 8px 18px; font-size: 13px; }
    .vk-content-title { font-size: 20px; }
    .vk-team-grid { grid-template-columns: 1fr; }
    .vk-pricing-card.is-popular::before { font-size: 10px; right: -36px; padding: 3px 32px; }
}

/* ===========================
   21. 打印
   =========================== */
@media print {
    .vk-sidebar, .vk-mobile-menu-btn, .vk-pagination, .vk-news-meta { display: none; }
    .vk-content { width: 100%; padding: 0; }
}