/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    --bg-light: #f1f5f9;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-gray);
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 14px;
}

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

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

/* ==================== 顶部导航 ==================== */
.main-nav {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 0px 10px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dark);
}

.nav-logo {
    height: 58px;
    /*width: 36px;*/
    object-fit: contain;
    border-radius: 6px;
}

.nav-logo-xb {
    height: 58px;
    object-fit: contain;
    border-radius: 6px;
}

.nav-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

/* ==================== 页面布局 ==================== */
.main-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ==================== 首页布局 ==================== */
.home-container {
    display: flex;
    gap: 20px;
}

/* 左侧边栏 */
.sidebar {
    width: 280px;
    flex-shrink: 0;
}

.sidebar-card {
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    overflow: hidden;
}

.sidebar-header {
    padding: 16px 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border);
}

.category-list {
    list-style: none;
    padding: 10px 0;
}

.category-list li a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: var(--text-gray);
    transition: all 0.2s;
}

.category-list li a::before {
    content: "●";
    font-size: 8px;
    margin-right: 10px;
    color: var(--primary);
}

.category-list li a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.category-list li.active a {
    color: var(--primary);
    font-weight: 500;
}

/* 右侧主内容 */
.main-content {
    flex: 1;
    min-width: 0;
}

/* 文章列表 */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.article-card {
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 24px;
    transition: box-shadow 0.2s;
}

.article-card:hover {
    box-shadow: var(--shadow-md);
}

.article-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
}

.article-card-title:hover {
    color: var(--primary-dark);
}

.article-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.article-card-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-card-desc {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 15px;
}

.article-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.2s;
}

.article-card-btn:hover {
    background: var(--primary-dark);
    color: white;
}

.empty-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    background: var(--bg-white);
    border-radius: 8px;
}

/* ==================== 文章详情页 ==================== */
.article-container {
    max-width: 1200px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-gray);
}

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

.breadcrumb .separator {
    color: var(--text-light);
}

.article-content {
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow-x: hidden;
    overflow-y: visible;
}

/* 全局邮编搜索 */
.global-postcode-search {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1d4ed8 100%);
    padding: 25px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    min-height: 90px;
    flex-wrap: wrap;
    position: relative;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.global-postcode-search::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    border-radius: 0;
}

.global-postcode-search .nav-logo-xb {
    flex-shrink: 0;
    height: 58px;
    width: auto;
    object-fit: contain;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.98);
    padding: 10px 11px;
    border-radius: 10px;
    width: 600px;
    flex: 0 1 auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.search-box:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 2px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.search-box:focus-within {
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25), 0 2px 8px rgba(37, 99, 235, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
}

.search-icon {
    font-size: 18px;
    color: var(--text-light);
}

.search-icon-img {
    /* width: 24px; */
    height: 48px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 21px;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 15px;
    min-width: 0;
}

.search-box input::placeholder {
    color: var(--text-light);
}

.search-result {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}

.search-result.success {
    color: #10b981;
}

.search-result.error {
    color: #ef4444;
}

/* 模块通用 */
.module {
    border-bottom: 1px solid var(--border);
}

.module:last-child {
    border-bottom: none;
}

/* 文本模块 */
.module-text {
    padding: 20px;
}

.text-content {
    line-height: 1.8;
    color: var(--text-dark);
}

/* 图片模块 */
.module-image {
    padding: 20px;
    text-align: center;
}

.module-image img {
    max-width: 100%;
    border-radius: 6px;
}

.image-caption {
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-light);
}

/* 渠道模块 */
.module-channel {
    padding: 0;
}

.channel-title {
    background: var(--primary);
    color: white;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
}

.channel-table-wrapper {
    overflow-x: auto;
}

.channel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 600px;
    table-layout: auto;
}

.channel-table th,
.channel-table td {
    padding: 12px 10px;
    text-align: center;
    border: 1px solid var(--border);
}

.channel-table thead {
    background: var(--primary);
}

.channel-table th {
    color: white;
    font-weight: 500;
    white-space: normal;
    word-wrap: break-word;
    word-break: break-word;
    writing-mode: horizontal-tb;
    vertical-align: middle;
    min-width: 60px;
    max-width: 400px;
    line-height: 1.4;
}

/* 固定列宽，确保短标题列正常显示 */
.channel-table th:nth-child(1),
.channel-table td:nth-child(1) {
    min-width: 100px;
    width: auto;
}

.channel-table th:nth-child(2),
.channel-table td:nth-child(2) {
    min-width: 80px;
    width: auto;
}

.channel-table th:nth-child(3),
.channel-table td:nth-child(3) {
    min-width: 60px;
    width: auto;
}

/* 重量列（从第4列开始，到倒数第3列之前）不换行，增加最小宽度 */
.channel-table th:nth-child(n+4):not(:nth-last-child(-n+3)),
.channel-table td:nth-child(n+4):not(:nth-last-child(-n+3)) {
    white-space: nowrap !important;
    min-width: 75px !important;
    padding: 12px 6px !important;
    font-size: 12px !important;
    text-align: center !important;
}

.channel-table tbody tr:nth-child(even) {
    background: var(--bg-gray);
}

.channel-table tbody tr:hover {
    background: #e0f2fe;
}

.channel-table tbody tr.highlight {
    background: #fef3c7 !important;
    border: 2px solid #f59e0b;
}

.channel-table tbody tr.highlight td {
    font-weight: 600;
}

.state-cell {
    font-weight: 600;
}

.postcode-range-cell {
    color: var(--primary);
}

/* 邮编查询框 */
.postcode-query-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-gray);
    flex-wrap: wrap;
}

.query-label {
    font-weight: 500;
    color: var(--text-dark);
}

.postcode-query-box .postcode-input {
    padding: 8px 14px;
    border: 2px solid var(--primary);
    border-radius: 6px;
    font-size: 14px;
    width: 140px;
}

.postcode-query-box .postcode-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.postcode-query-box .distance-result {
    color: var(--primary);
    font-weight: 600;
}

/* 模块备注 */
.module-remark {
    margin: 16px 20px;
    padding: 14px 16px;
    background: var(--bg-gray);
    border-left: 3px solid var(--primary);
    border-radius: 4px;
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* ==================== 管理后台 ==================== */
.admin-login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-gray);
}

.login-box {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    margin: 20px;
}

.login-title {
    text-align: center;
    color: var(--primary);
    margin-bottom: 30px;
    font-size: 24px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
}

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

.error-message {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid #fecaca;
}

/* 管理后台 */
.admin-container {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.admin-header h1 {
    color: var(--primary);
    font-size: 22px;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* 按钮 */
.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-block;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

/* 区块 */
.section {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.section h2 {
    font-size: 16px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* 分类管理 */
.category-list-admin {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.category-item-admin {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg-gray);
    border-radius: 20px;
    font-size: 13px;
}

.add-category-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.add-category-form input {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 2px;
}

.btn-icon:hover {
    color: #ef4444;
}

/* 文章表格 */
.article-table-wrapper {
    overflow-x: auto;
}

.article-table {
    width: 100%;
    border-collapse: collapse;
}

.article-table th,
.article-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.article-table th {
    font-weight: 500;
    color: var(--text-light);
    font-size: 13px;
    background: var(--bg-gray);
}

.article-table tbody tr:hover {
    background: var(--bg-gray);
}

.article-table .actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* 表单 */
.article-form {
    max-width: 600px;
}

.article-form .form-group {
    margin-bottom: 20px;
}

.article-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-gray);
}

.article-form input,
.article-form select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

.article-form input:focus,
.article-form select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-actions {
    margin-top: 24px;
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .main-nav {
        padding: 0 15px;
        height: 56px;
    }
    
    .nav-logo {
        height: 32px;
        width: 32px;
    }
    
    .nav-title {
        font-size: 14px;
    }
    
    .main-wrapper {
        padding: 15px;
    }
    
    .home-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .article-card {
        padding: 18px;
    }
    
    .article-card-title {
        font-size: 16px;
    }
    
    .article-card-meta {
        font-size: 12px;
    }
    
    .article-container {
        padding: 0;
    }
    
    .global-postcode-search {
        padding: 20px 20px;
        gap: 20px;
        min-height: auto;
    }
    
    .global-postcode-search .nav-logo-xb {
        height: 50px;
    }
    
    .search-box {
        padding: 12px 18px;
        max-width: 100%;
        min-width: 100%;
        flex: 1 1 100%;
        width: 100%;
    }
    
    .channel-title {
        font-size: 14px;
        padding: 12px 15px;
    }
    
    .channel-table {
        font-size: 12px;
    }
    
    .channel-table th,
    .channel-table td {
        padding: 10px 6px;
    }
    
    .postcode-query-box {
        padding: 12px 15px;
    }
    
    .module-remark {
        margin: 12px 15px;
    }
    
    .admin-container {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .nav-title {
        font-size: 12px;
    }
    
    .article-card-meta {
        gap: 10px;
    }
    
    .global-postcode-search {
        padding: 12px 15px;
        gap: 15px;
    }
    
    .global-postcode-search .nav-logo-xb {
        height: 45px;
    }
    
    .search-box {
        padding: 10px 15px;
        min-width: 100%;
    }
    
    .search-box input {
        font-size: 14px;
    }
}