/*
Theme Name: 二战坦克博物馆
Theme URI: https://www.chuyc.cn/
Description: 专业的二战坦克展示网站 - 还原历史经典装甲车辆
Version: 1.1.0
Author: QClaw Agent
Author URI: https://www.chuyc.cn/
Template: 
Text Domain: tank-museum
Tags: 二战, 坦克, 军事, 历史, 响应式, 自定义帖子类型
*/

/* ============================================
   二战坦克博物馆 - 主样式表 v1.1
   优化：排版、间距、颜色、响应式布局
   ============================================ */

/* --- CSS Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 军事风格配色 */
    --military-dark: #1a1a1a;
    --military-green: #3d4f2d;
    --military-green-light: #4a5c38;
    --accent-red: #8b0000;
    --accent-gold: #d4a574;
    --dark-gray: #2c2c2c;
    --medium-gray: #3c3c3c;
    --light-gray: #a0a0a0;
    --text-light: #e0e0e0;
    --text-white: #ffffff;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    
    /* 字体 */
    --font-main: 'Noto Sans SC', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    --font-heading: 'Noto Sans SC', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--dark-gray);
    color: var(--text-light);
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- 链接样式 --- */
a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-red);
}

/* --- 容器 --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* --- 按钮 --- */
.btn-military {
    display: inline-block;
    background: linear-gradient(135deg, var(--military-green), var(--military-green-light));
    color: var(--text-white);
    padding: 14px 32px;
    border: 2px solid var(--accent-gold);
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-military:hover {
    background: linear-gradient(135deg, var(--accent-red), #6b0000);
    border-color: var(--accent-red);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 0, 0, 0.4);
}

/* ============================================
   头部 Header
   ============================================ */
.site-header {
    background: linear-gradient(to bottom, #0a0a0a, var(--dark-gray));
    padding: var(--spacing-md) 0;
    border-bottom: 4px solid var(--accent-red);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    color: var(--accent-gold);
    text-align: center;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.8);
    letter-spacing: 2px;
    margin: 0;
}

.site-description {
    color: var(--light-gray);
    font-size: 1rem;
    text-align: center;
    margin: 0;
}

/* --- 导航菜单 --- */
.main-navigation {
    background: linear-gradient(to right, var(--military-green), var(--military-green-light));
    padding: 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.main-navigation .container {
    display: flex;
    justify-content: center;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    display: block;
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    padding: 16px 28px;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
    background-color: rgba(0, 0, 0, 0.2);
    border-bottom-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* ============================================
   主内容区 Main Content
   ============================================ */
.site-main {
    flex: 1;
    padding: var(--spacing-lg) 0;
}

/* ============================================
   首页英雄区 Hero Section
   ============================================ */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
                url('assets/images/tank-hero.jpg') center/cover no-repeat;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(139, 0, 0, 0.3), transparent);
    pointer-events: none;
}

.hero-overlay {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    text-shadow: 4px 4px 8px rgba(0, 0, 0, 0.9);
    letter-spacing: 3px;
}

.hero-description {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* ============================================
   区块标题 Section Titles
   ============================================ */
.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--accent-gold);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--accent-red);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* ============================================
   坦克类型导航 Tank Types Navigation
   ============================================ */
.tank-types-navigation {
    padding: var(--spacing-lg) 0;
    background: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.type-card {
    background: var(--dark-gray);
    border: 2px solid var(--military-green);
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s ease;
}

.type-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.type-card h3 {
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-xs);
}

.type-card p {
    color: var(--light-gray);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.tank-count {
    display: inline-block;
    background: var(--accent-red);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

/* ============================================
   坦克网格 Tank Grid
   ============================================ */
.tank-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.tank-card {
    background: var(--medium-gray);
    border: 2px solid var(--military-green);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.tank-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-gold);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

.tank-card img,
.tank-card .tank-thumbnail img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tank-card:hover img {
    transform: scale(1.08);
}

.tank-card-content {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tank-card h3,
.tank-card .tank-title {
    font-size: 1.4rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.tank-card h3 a,
.tank-card .tank-title a {
    color: inherit;
}

.tank-card h3 a:hover,
.tank-card .tank-title a:hover {
    color: var(--accent-red);
}

.tank-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.tank-meta .meta-item {
    background: var(--dark-gray);
    padding: 4px 12px;
    border-radius: 20px;
    color: var(--light-gray);
}

.tank-excerpt {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.tank-specs-preview {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--military-green);
}

.spec-item {
    font-size: 0.85rem;
    color: var(--light-gray);
    background: var(--dark-gray);
    padding: 4px 10px;
    border-radius: 4px;
}

/* ============================================
   坦克筛选 Tank Filters
   ============================================ */
.tank-filters {
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.filter-title {
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.filter-link {
    display: inline-block;
    padding: 10px 24px;
    background: var(--medium-gray);
    color: var(--text-light);
    border: 2px solid var(--military-green);
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.filter-link:hover,
.filter-link.active {
    background: var(--military-green);
    color: var(--text-white);
    border-color: var(--accent-gold);
}

/* ============================================
   坦克单页 Tank Single
   ============================================ */
.tank-single {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-sm);
}

.tank-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--accent-red);
}

.tank-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.7);
}

.tank-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.tank-featured-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.tank-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.tank-specs {
    background: var(--medium-gray);
    padding: var(--spacing-md);
    border-left: 6px solid var(--accent-red);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.specs-title {
    font-size: 1.8rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--military-green);
}

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

.spec-table th,
.spec-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--dark-gray);
}

.spec-table th {
    background: var(--military-green);
    color: var(--text-white);
    width: 35%;
    font-weight: 600;
}

.spec-table td {
    color: var(--text-light);
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
    border-bottom: none;
}

.tank-description {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--medium-gray);
    border-radius: 8px;
}

.description-title {
    font-size: 1.8rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

.description-content {
    color: var(--text-light);
    line-height: 1.9;
    font-size: 1.05rem;
}

.description-content p {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   页脚 Footer
   ============================================ */
.site-footer {
    background: linear-gradient(to top, #0a0a0a, var(--dark-gray));
    color: var(--light-gray);
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-sm);
    border-top: 4px solid var(--accent-red);
    margin-top: auto;
}

.site-footer a {
    color: var(--accent-gold);
}

.site-footer a:hover {
    color: var(--accent-red);
}

/* ============================================
   分页 Pagination
   ============================================ */
.posts-pagination,
.posts-navigation {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.posts-pagination .page-numbers,
.posts-navigation a {
    display: inline-block;
    padding: 10px 20px;
    margin: 0 4px;
    background: var(--medium-gray);
    color: var(--text-light);
    border: 2px solid var(--military-green);
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.posts-pagination .page-numbers.current,
.posts-pagination .page-numbers:hover,
.posts-navigation a:hover {
    background: var(--military-green);
    color: var(--text-white);
    border-color: var(--accent-gold);
}

/* ============================================
   响应式设计 Responsive
   ============================================ */
@media (max-width: 1024px) {
    .tank-content-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 15px;
    }
    
    .site-title {
        font-size: 2rem;
    }
    
    .hero-section {
        min-height: 350px;
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .tank-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-sm);
    }
    
    .tank-card img {
        height: 180px;
    }
    
    .tank-title {
        font-size: 2.2rem;
    }
    
    .main-navigation .container {
        justify-content: flex-start;
        overflow-x: auto;
    }
    
    .main-navigation ul {
        flex-wrap: nowrap;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .site-title {
        font-size: 1.6rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .btn-military {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

/* ============================================
   动画 Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tank-card {
    animation: fadeIn 0.5s ease;
}

/* ============================================
   引用块 Blockquote
   ============================================ */
blockquote {
    border-left: 6px solid var(--accent-gold);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    background: var(--medium-gray);
    font-style: italic;
    color: var(--light-gray);
    border-radius: 0 8px 8px 0;
}

/* ============================================
   页面顶部 Page Header
   ============================================ */
.page-header {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
    background: var(--medium-gray);
    border-bottom: 3px solid var(--accent-red);
}

.page-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.taxonomy-description {
    color: var(--light-gray);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   无内容提示 No Content
   ============================================ */
.no-tanks {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--light-gray);
    font-size: 1.2rem;
}

/* ============================================
   相关坦克 Related Tanks
   ============================================ */
.tank-related {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--medium-gray);
    border-radius: 12px;
}

.related-title {
    font-size: 1.8rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.related-card {
    text-align: center;
}

.related-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
}

.related-card h3 {
    font-size: 1rem;
}

.related-card h3 a {
    color: var(--text-light);
}

.related-card h3 a:hover {
    color: var(--accent-gold);
}