/*
Theme Name: BizForum Pro - 业务宣传论坛主题
Theme URI: https://example.com/bizforum-pro
Author: Manus AI
Author URI: https://example.com
Description: 专业的业务宣传论坛主题，集成学历提升、户口代办、社保业务、财税业务、居住证业务、高端岗位推荐六大版块。支持用户注册登录、发帖回帖、实时讨论等完整论坛功能。
Version: 2.0.0
Requires at least: WordPress 5.8
Tested up to: WordPress 6.4
Requires PHP: 7.4
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bizforum-pro
Tags: forum, community, business, discussion, responsive, custom-menu, featured-images
*/

/* ===== CSS 变量与基础样式 ===== */
:root {
    --primary-dark:    #2c3e50;
    --primary:         #3498db;
    --primary-light:   #5dade2;
    --accent:          #e74c3c;
    --success:         #2ecc71;
    --warning:         #f39c12;
    --danger:          #e74c3c;
    --info:            #3498db;
    
    --text-dark:       #2c3e50;
    --text-mid:        #34495e;
    --text-light:      #7f8c8d;
    --text-lighter:    #95a5a6;
    
    --bg-light:        #f2f5f8;
    --bg-lighter:      #ecf0f1;
    --bg-white:        #ffffff;
    --border:          #ddd;
    --border-light:    #e8e8e8;
    
    --shadow-sm:       0 2px 4px rgba(0,0,0,0.1);
    --shadow-md:       0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg:       0 8px 24px rgba(0,0,0,0.2);
    
    --radius-sm:       4px;
    --radius-md:       6px;
    --radius-lg:       8px;
    --transition:      0.3s ease;
    
    /* 业务版块颜色 */
    --color-edu:       #3498db;
    --color-hukou:     #9b59b6;
    --color-shebao:    #1abc9c;
    --color-caishui:   #e67e22;
    --color-juzhu:     #e74c3c;
    --color-job:       #16a085;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 14px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-light);
}

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ===== Header ===== */
.site-header {
    background: var(--primary-dark);
    color: #fff;
    padding: 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    height: 50px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    font-size: 18px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
}

.header-nav {
    display: flex;
    gap: 0;
    align-items: center;
    flex: 1;
    margin: 0 24px;
}

.header-nav a {
    color: rgba(255,255,255,0.8);
    padding: 15px 12px;
    font-size: 13px;
    transition: all var(--transition);
}

.header-nav a:hover,
.header-nav a.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-post {
    background: var(--accent);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-post:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-width: 160px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    margin-top: 8px;
}

.user-menu:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 10px 16px;
    color: var(--text-dark);
    font-size: 13px;
    border-bottom: 1px solid var(--border-light);
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

/* ===== 论坛统计栏 ===== */
.forum-stats {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    font-size: 12px;
    color: var(--text-light);
}

.forum-stats-inner {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
}

.stats-left {
    display: flex;
    gap: 20px;
    align-items: center;
    flex: 1;
}

.stats-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.stat-item strong {
    color: var(--primary);
    font-size: 14px;
}

/* 按钮样式 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
    white-space: nowrap;
}

.btn-login {
    background: var(--primary);
    color: white;
    padding: 8px 14px !important;
    font-size: 12px !important;
}

.btn-login:hover {
    background: var(--primary-dark);
    opacity: 0.9;
}

.btn-login:active {
    opacity: 0.8;
}

.btn-register {
    background: #27ae60;
    color: white;
}

.btn-register:hover {
    background: #229954;
    opacity: 0.9;
}

.btn-post {
    background: #e74c3c;
    color: white;
}

.btn-post:hover {
    background: #c0392b;
    opacity: 0.9;
}

.btn-logout {
    background: #95a5a6;
    color: white;
}

.btn-logout:hover {
    background: #7f8c8d;
    opacity: 0.9;
}

/* ===== 主内容区 ===== */
main {
    background: #fff;
    margin: 12px 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

/* ===== 论坛版块列表 ===== */
.forum-categories {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.forum-category-link {
    display: block;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--border-light);
    padding: 0;
    transition: all var(--transition);
    background: var(--bg-white);
}

.forum-category-link:last-child {
    border-bottom: none;
}

.forum-category-link:hover {
    background: var(--bg-light);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.forum-category {
    border-bottom: 1px solid var(--border-light);
    padding: 0;
    transition: all var(--transition);
    background: var(--bg-white);
}

.forum-category:last-child {
    border-bottom: none;
}

.forum-category:hover {
    background: var(--bg-light);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.category-header {
    display: grid;
    grid-template-columns: 50px 1fr 80px 80px 120px;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    cursor: pointer;
    transition: all var(--transition);
    pointer-events: auto !important;
    z-index: 1;
}

.forum-category-link:hover .category-header,
.forum-category:hover .category-header {
    background: rgba(52, 152, 219, 0.02);
}

.category-icon {
    width: 45px;
    height: 45px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    background: var(--bg-light);
}

.category-info h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 2px;
}

.category-info p {
    font-size: 11px;
    color: var(--text-light);
    line-height: 1.3;
}

.category-stats {
    text-align: center;
    font-size: 13px;
}

.category-stats strong {
    display: block;
    font-size: 16px;
    color: var(--primary);
    font-weight: 700;
}

.category-stats span {
    color: var(--text-light);
    font-size: 11px;
}

.category-latest {
    text-align: right;
    font-size: 12px;
    color: var(--text-light);
}

.category-latest strong {
    display: block;
    color: var(--text-dark);
    font-size: 13px;
    margin-bottom: 4px;
}

/* ===== 业务版块颜色 ===== */
.category-edu .category-icon { background: var(--color-edu); color: #fff; }
.category-hukou .category-icon { background: var(--color-hukou); color: #fff; }
.category-shebao .category-icon { background: var(--color-shebao); color: #fff; }
.category-caishui .category-icon { background: var(--color-caishui); color: #fff; }
.category-juzhu .category-icon { background: var(--color-juzhu); color: #fff; }
.category-job .category-icon { background: var(--color-job); color: #fff; }

.category-edu .category-info h3 { color: var(--color-edu); }
.category-hukou .category-info h3 { color: var(--color-hukou); }
.category-shebao .category-info h3 { color: var(--color-shebao); }
.category-caishui .category-info h3 { color: var(--color-caishui); }
.category-juzhu .category-info h3 { color: var(--color-juzhu); }
.category-job .category-info h3 { color: var(--color-job); }

/* ===== 侧边栏 ===== */
.sidebar {
    width: 280px;
}

.sidebar-widget {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.sidebar-widget:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    border-color: #e8e8e8;
}

.widget-title {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #34495e 100%);
    color: #fff;
    padding: 12px 14px;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.widget-title::before {
    content: '▪';
    font-size: 16px;
    opacity: 0.8;
}

.widget-content {
    padding: 14px;
}

/* ===== 登录框 ===== */
.login-form input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #e8e8e8;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 10px;
    background: #f9f9f9;
    transition: all 0.2s ease;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.login-form button {
    width: 100%;
    padding: 10px 12px;
    background: linear-gradient(135deg, var(--primary) 0%, #2980b9 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
}

.login-form button:hover {
    background: linear-gradient(135deg, #2980b9 0%, #2471a3 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.login-links {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
}

.login-links a {
    color: var(--primary);
    transition: color 0.2s ease;
}

.login-links a:hover {
    color: var(--primary-light);
}

/* ===== 热门话题 ===== */
.hot-topics-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hot-topic-item {
    padding: 10px 12px;
    background: #f9f9f9;
    border-left: 3px solid var(--primary);
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.hot-topic-item::before {
    content: '🔥';
    font-size: 12px;
    flex-shrink: 0;
}

.hot-topic-item:hover {
    background: #f0f7ff;
    color: var(--primary);
    padding-left: 14px;
}

.h.hot-topic-badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 700;
    margin-left: auto;
    flex-shrink: 0;
} margin-right: 6px;
    font-weight: 600;
}

/* ===== 模态框 (登录/注册) ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #fff;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 450px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-light);
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-light);
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.checkbox-group a {
    color: var(--primary);
}

.btn-submit {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-submit:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-submit:disabled {
    background: var(--text-lighter);
    cursor: not-allowed;
    transform: none;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0 20px;
    margin-top: 40px;
    font-size: 12px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition);
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .category-header {
        grid-template-columns: 50px 1fr 60px 60px 1fr;
    }
    
    .category-latest {
        display: block;
        font-size: 12px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .category-header {
        display: flex !important;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
        padding: 10px 12px;
    }
    
    .category-icon {
        flex: 0 0 36px;
        width: 36px;
        height: 36px;
    }
    
    .category-info {
        flex: 1 1 0;
        min-width: 0;
    }
    
    .category-info h3 {
        font-size: 14px;
    }
    
    .category-info p {
        font-size: 12px;
    }
    
    .category-stats {
        display: inline-flex !important;
        flex-direction: column;
        align-items: center;
        font-size: 11px;
        min-width: 44px;
    }
    
    .category-latest {
        display: block !important;
        flex: 0 0 100%;
        font-size: 11px;
        padding-left: 42px;
        color: #666;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}


/* ===== 公告栏 ===== */
.announcement-bar {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.announcement-content {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.announcement-icon {
    font-size: 18px;
    flex-shrink: 0;
    min-width: 24px;
}

.announcement-carousel {
    flex: 1;
    min-height: 24px;
    position: relative;
}

.announcement-item {
    animation: fadeInOut 5s ease-in-out;
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translateY(5px);
    }
    10% {
        opacity: 1;
        transform: translateY(0);
    }
    90% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-5px);
    }
}

.announcement-item a {
    color: inherit;
    text-decoration: none;
    font-weight: 500;
    transition: opacity var(--transition);
}

.announcement-item a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.announcement-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity var(--transition);
    flex-shrink: 0;
}

.announcement-close:hover {
    opacity: 1;
}

/* 响应式 - 平板 */
@media (max-width: 768px) {
    .announcement-content {
        gap: 8px;
    }
    
    .announcement-item {
        font-size: 13px;
    }
    
    .announcement-icon {
        font-size: 16px;
    }
}

/* 响应式 - 手机 */
@media (max-width: 480px) {
    .announcement-bar {
        padding: 8px 0;
    }
    
    .announcement-content {
        gap: 6px;
    }
    
    .announcement-item {
        font-size: 12px;
    }
    
    .announcement-icon {
        font-size: 14px;
        min-width: 20px;
    }
    
    .announcement-close {
        width: 20px;
        height: 20px;
        font-size: 16px;
    }
}


/* ===== 移动端汉堡菜单 ===== */
.hamburger-menu {
    display: none;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 0;
}

.hamburger-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    transition: all 0.3s ease;
    border-radius: 1px;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 移动端菜单面板 */
.mobile-menu-panel {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 999;
    overflow-y: auto;
    animation: slideInLeft 0.3s ease;
}

.mobile-menu-panel.active {
    display: block;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid #ecf0f1;
    background: var(--primary-dark);
    color: #fff;
}

.mobile-menu-header h3 {
    margin: 0;
    font-size: 16px;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-nav {
    padding: 12px 0;
}

.mobile-menu-list {
    list-style: none;
}

.mobile-menu-list li {
    border-bottom: 1px solid #ecf0f1;
}

.mobile-menu-list a {
    display: block;
    padding: 14px 16px;
    color: var(--text-dark);
    font-size: 15px;
    transition: background 0.2s ease;
}

.mobile-menu-list a:hover {
    background: var(--bg-light);
    color: var(--primary);
}/* ===== 平板u8bbe备优化（768px 及以下）===== */
@media (max-width: 768px) {
    .hamburger-menu {
        display: flex;
    }
    
    .header-nav {
        display: none !important;
    }
    
    .container {
        padding: 0 12px;
    }
    
    /* 强制移动端布局为单列，侧边栏在下方 */
    .container[style*="grid-template-columns"] {
        display: block !important;
        grid-template-columns: unset !important;
        gap: unset !important;
        padding: 0 12px !important;
    }
    
    main {
        width: 100% !important;
        margin-bottom: 16px !important;
        display: block !important;
    }
    
    .sidebar {
        width: 100% !important;
        margin-top: 16px !important;
        display: block !important;
    }
    
    /* 移动端隐藏冗余板块 */
    .mobile-hide {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
    }
    
    /* 强制隐藏侧边栏中包含特定关键词的小工具 */
    .sidebar-widget:has(.widget-title:contains("用户登录")),
    .sidebar-widget:has(.widget-title:contains("在线客服")),
    .sidebar-widget:has(.widget-title:contains("发帖")),
    .sidebar-widget:has(.widget-title:contains("咨询")) {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    /* 版块卡片 - 确保宽度充满屏幕 */
    .forum-categories {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    .forum-category-link {
        width: 100% !important;
        display: block !important;
        padding: 0 !important;
    }
    
    .category-header {
        display: grid !important;
        grid-template-columns: 45px 1fr 70px 70px !important;
        gap: 10px !important;
        padding: 12px 12px !important;
        width: 100% !important;
        box-sizing: border-box !important;
        cursor: pointer !important;
        pointer-events: auto !important;
        z-index: 10 !important;
    }
    
    .category-latest {
        display: none;
    }
    
    .category-info h3 {
        font-size: 13px !important;
    }
    
    .category-info p {
        font-size: 10px !important;
    }
    
    .btn-post {
        padding: 8px 12px !important;
        font-size: 13px !important;
    }
    
    .logo-text {
        display: block;
        font-size: 14px !important;
        white-space: nowrap;
        overflow: visible;
        width: auto !important;
        max-width: 150px;
    }
    
    .site-logo {
        gap: 6px !important;
    }
    
    .forum-stats-inner {
        grid-template-columns: 1fr 1fr !important;
        gap: 8px !important;
    }
    
    .stat-item {
        font-size: 12px !important;
        padding: 8px !important;
    }
    
    .announcement-content {
        gap: 8px !important;
    }
    
    .announcement-item {
        font-size: 13px !important;
    }
    
    .announcement-icon {
        font-size: 16px !important;
    }
}/* ===== 手机设备优化（480px 及以下）===== */
@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    body {
        font-size: 13px;
    }
    
    /* 头部紧凑 */
    .header-inner {
        height: 50px !important;
        padding: 8px 0 !important;
    }
    
    .logo-icon {
        width: 32px !important;
        height: 32px !important;
        font-size: 16px !important;
    }
    
    /* 操作按钮隐藏，仅保留汉堡菜单 */
    .header-actions {
        display: none !important;
    }
    
    /* 版块卡片 - 强制重写 */
    .category-header {
        grid-template-columns: 40px 1fr !important;
        gap: 8px !important;
        padding: 10px 10px !important;
    }
    
    .category-icon {
        width: 40px !important;
        height: 40px !important;
        font-size: 18px !important;
        flex-shrink: 0 !important;
    }
    
    .category-stats {
        display: none !important;
    }
    
    .category-latest {
        display: none !important;
    }
    
    .category-info h3 {
        font-size: 12px !important;
        margin: 0 0 2px 0 !important;
        line-height: 1.3 !important;
    }
    
    .category-info p {
        font-size: 10px !important;
        margin: 0 !important;
        line-height: 1.2 !important;
    }
    
    /* 统计栏单列 */
    .forum-stats-inner {
        grid-template-columns: 1fr 1fr !important;
    }
    
    .stat-item {
        font-size: 11px !important;
        padding: 6px !important;
    }
    
    /* 公告栏 */
    .announcement-bar {
        padding: 8px 0 !important;
    }
    
    .announcement-content {
        gap: 6px !important;
    }
    
    .announcement-item {
        font-size: 12px !important;
    }
    
    .announcement-icon {
        font-size: 14px !important;
        min-width: 18px !important;
    }
    
    .announcement-close {
        width: 18px !important;
        height: 18px !important;
        font-size: 14px !important;
    }
    
    /* 弹出框响应式 */
    .modal {
        width: 95vw !important;
        max-height: 90vh !important;
        border-radius: 8px !important;
    }
    
    .modal-header {
        padding: 12px !important;
        font-size: 14px !important;
    }
    
    .modal-body {
        padding: 12px !important;
    }
    
    .modal-body input,
    .modal-body textarea {
        font-size: 16px !important;
        padding: 10px !important;
    }
    
    /* 按钮大小优化（便于触控） */
    button {
        min-height: 44px !important;
        min-width: 44px !important;
    }
    
    .btn-primary,
    .btn-post {
        padding: 10px 16px !important;
        font-size: 14px !important;
    }
    
    /* 链接点击区域 */
    a {
        padding: 4px 0;
    }
    
    /* 移动端菜单面板 */
    .mobile-menu-panel {
        top: 50px !important;
    }
    
    .mobile-menu-header {
        padding: 12px !important;
    }
    
    .mobile-menu-list a {
        padding: 12px 14px !important;
        font-size: 14px !important;
    }
}

/* ===== 超小屏幕（320px 及以下）===== */
@media (max-width: 320px) {
    
    .container[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
        margin: 10px 0 !important;
    }
    
    .category-header {
        grid-template-columns: 40px 1fr !important;
        gap: 8px !important;
        padding: 10px 10px !important;
    }
    
    .category-icon {
        width: 40px !important;
        height: 40px !important;
        font-size: 18px !important;
    }
    
    .category-stats {
        display: none !important;
    }
    
    .category-latest {
        display: none !important;
    }
    
    .category-info h3 {
        font-size: 12px !important;
        margin-bottom: 2px !important;
    }
    
    .category-info p {
        font-size: 10px !important;
        line-height: 1.2 !important;
    }
    
    .sidebar {
        width: 100% !important;
    }
    
    .sidebar-widget {
        margin-bottom: 10px !important;
        border-radius: 6px !important;
    }
    
    .widget-title {
        padding: 10px 12px !important;
        font-size: 12px !important;
    }
    
    .widget-content {
        padding: 10px 12px !important;
    }
    
    .login-form input {
        padding: 10px !important;
        font-size: 14px !important;
        margin-bottom: 8px !important;
    }
    
    .login-form button {
        padding: 10px !important;
        font-size: 13px !important;
    }
    
    .hot-topics-list {
        gap: 6px !important;
    }
    
    .hot-topic-item {
        padding: 8px 10px !important;
        font-size: 11px !important;
    }
    
    .hot-topic-badge {
        font-size: 9px !important;
        padding: 2px 4px !important;
    }
    
    .header-inner {
        height: 45px !important;
    }
    
    .logo-icon {
        width: 28px !important;
        height: 28px !important;
    }
    
    .announcement-item {
        font-size: 11px !important;
    }
}

/* ===== 触控设备优化 ===== */
@media (hover: none) and (pointer: coarse) {
    /* 移除 hover 效果，改用 active */
    .service-card:active {
        background: var(--bg-lighter);
    }
    
    a:active {
        opacity: 0.7;
    }
    
    button:active {
        opacity: 0.8;
    }
    
    /* 增大触控目标 */
    button, a, input[type="button"], input[type="submit"] {
        min-height: 48px;
        min-width: 48px;
    }
    
    /* 减少双击缩放延迟 */
    input, button, a {
        touch-action: manipulation;
    }
}

/* ===== 暗色模式支持 ===== */
@media (prefers-color-scheme: dark) {
    body {
        background: #1a1a1a;
        color: #e0e0e0;
    }
    
    .mobile-menu-panel {
        background: #2a2a2a;
    }
    
    .mobile-menu-list a {
        color: #e0e0e0;
    }
    
    .mobile-menu-list a:hover {
        background: #3a3a3a;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .site-header,
    .forum-stats,
    .announcement-bar,
    .hamburger-menu,
    .mobile-menu-panel,
    .header-actions {
        display: none !important;
    }
}