/**
 * 文章列表页面样式
 */

/* 主题色补充 - 仅添加base.css中没有的特殊变量 */
:root {
    --light-bg: #f5f4fa;
    --white-color: #ffffff;
    --tech-blue: #3f84e5;
}

body.dark-mode {
    --white-color: #1a1a2e;
    --light-bg: #2a2a40;
}

/* 主体布局 */
.main-wrapper {
    display: flex;
    margin-top: 20px;
}

/* 主题色定义 */
:root {
    --primary-color: #8a5cf5;
    --primary-gradient: linear-gradient(45deg, #8a5cf5, #d53f8c);
    --secondary-color: #a0a0b0;
    --text-color: #333333;
    --border-color: #eaeaea;
    --accent-color: #d53f8c;
    --neon-glow: 0 0 8px rgba(138, 92, 245, 0.6);
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: var(--white-color);
    transition: background-color 0.3s, color 0.3s;
    -webkit-text-size-adjust: 100%;
}

/* 防止iOS设备中输入框自动放大 */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea {
    font-size: 16px; /* 至少16px以避免iOS中自动缩放 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 顶部导航 */
header {
    padding: 15px 0;
    border-bottom: 1px solid rgba(138, 92, 245, 0.2);
    background: linear-gradient(to right, rgba(138, 92, 245, 0.05), rgba(213, 63, 140, 0.05));
}

.header-container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

/* Logo样式已移至logo_ai_senior_sis.php */

/* 左侧分类导航 */
.sidebar {
    width: 220px;
    margin-right: 30px;
    transition: transform 0.3s;
}

/* 分类导航 */
.category-nav {
    background-color: var(--light-bg);
    padding: 15px;
    border-radius: 5px;
}

.category-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-menu li {
    padding: 10px 15px;
    margin-bottom: 5px;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.3s;
}

.category-menu li a,
.subcategory-menu li a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.category-menu li.active {
    background-color: var(--primary-color);
    color: white;
}

.category-menu li:hover:not(.active) {
    background-color: rgba(138, 92, 245, 0.1);
}

.subcategory-menu {
    list-style: none;
    padding-left: 15px;
    margin-top: 5px;
}

.subcategory-menu li {
    padding: 8px 10px;
    margin-bottom: 3px;
    font-size: 0.9em;
}

/* 移动端侧边栏控制 */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 5px;
    cursor: pointer;
    z-index: 1010;
    font-size: 1.2rem;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    z-index: 1000;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 1.2rem;
    cursor: pointer;
}

/* 内容区域 */
.content-area {
    flex: 1;
}

/* 搜索栏 */
.search-bar {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    position: relative;
    justify-content: space-between;
}

.search-input-container {
    position: relative;
    width: 62%;
    display: flex;
    align-items: center;
}

.search-input {
    width: 100%;
    padding: 10px 15px;
    padding-right: 45px; /* 为搜索图标留出空间 */
    border: 1px solid var(--border-color);
    border-radius: 25px;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
    background-color: var(--white-color);
    color: var(--text-color);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(138, 92, 245, 0.2);
}

.search-btn {
    position: absolute;
    right: 5px;
    background: none;
    color: var(--primary-color);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    margin: 0;
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.3s;
}

.search-btn:hover {
    color: #2d7278;
}

/* 主题切换 */
.theme-toggle {
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.3s;
}

/* 文章列表 */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.article-card {
    background-color: var(--white-color);
    border-radius: 5px;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-card a {
    text-decoration: none;
    color: inherit;
}

.article-category {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 3px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0 0 10px;
    line-height: 1.4;
}

.article-summary {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    line-height: 1.5;
}

.article-date {
    font-size: 0.8rem;
    color: var(--secondary-color);
    text-align: right;
}

/* 分页控制 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
    gap: 5px;
}

.pagination-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s;
}

.pagination-item:hover {
    background-color: var(--light-bg);
    border-color: var(--primary-color);
}

.pagination-item.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-prev,
.pagination-next {
    padding: 0 15px;
}

.pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    color: var(--secondary-color);
}

/* 加载更多按钮 */
.load-more-container {
    text-align: center;
    margin-top: 30px;
}

#load-more {
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 10px 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(138, 92, 245, 0.3);
}

#load-more:hover {
    transform: translateY(-3px);
    box-shadow: var(--neon-glow);
}

#load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 底线提示 */
.end-line {
    text-align: center;
    color: var(--secondary-color);
    padding: 30px 0;
    font-size: 0.9rem;
    position: relative;
}

.end-line::before,
.end-line::after {
    content: "";
    display: inline-block;
    width: 100px;
    height: 1px;
    background-color: var(--border-color);
    vertical-align: middle;
    margin: 0 15px;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 20px 0;
    display: none;
}

.loading .dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-color);
    margin: 0 5px;
    animation: loading 1.4s infinite ease-in-out both;
}

.loading .dot:nth-child(1) {
    animation-delay: -0.32s;
}

.loading .dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes loading {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* 没有结果 */
.no-results {
    text-align: center;
    padding: 50px 20px;
    color: var(--secondary-color);
}

.no-results i {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    opacity: 0.5;
}

.no-results p {
    font-size: 1.1rem;
    line-height: 1.5;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(138, 92, 245, 0.4);
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 900;
    font-size: 1.2rem;
}

.back-to-top.visible {
    opacity: 1;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--neon-glow);
}

/* 页脚 */
footer {
    background-color: var(--light-bg);
    padding: 20px 0;
    text-align: center;
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-top: 50px;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-wrapper {
        flex-direction: column;
    }
    
    /* 移除会影响logo显示的样式 */
    /*.header-container {
        justify-content: center;
        padding-left: 40px;
    }*/
    
    .logo {
        max-width: 200px;
    }
    
    .sidebar {
        position: fixed;
        top: 70px; /* 避免遮挡顶部logo */
        left: 0;
        height: calc(100% - 70px);
        width: 60%;
        max-width: 200px;
        background-color: rgba(255, 255, 255, 0.9);
        z-index: 1001;
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        padding: 20px;
        overflow-y: auto;
        border-radius: 0 5px 5px 0;
        transition: transform 0.3s ease;
        backdrop-filter: blur(5px);
    }
    
    .dark-mode .sidebar {
        background-color: rgba(34, 34, 34, 0.9);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle,
    .sidebar-close {
        display: block;
    }
    
    .sidebar-backdrop.active {
        display: block;
    }
    
    .search-input-container {
        width: 75%;
    }
    
    .pagination-item {
        min-width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .pagination {
        margin: 20px 0;
    }
    
    .pagination-item {
        min-width: 30px;
        height: 30px;
        margin: 0 1px;
        font-size: 0.85rem;
        padding: 0 5px;
    }
    
    .pagination-prev, .pagination-next {
        padding: 0 8px;
    }
    
    .pagination-ellipsis {
        width: 20px;
    }
    
    #load-more {
        width: 100%;
        max-width: 250px;
        padding: 10px 15px;
    }
}

/* 侧边栏标题 */
.category-nav h3,
.tag-nav h3 {
    font-size: 1.1rem;
    margin: 0 0 15px 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 标签云 */
.tag-nav {
    background-color: var(--light-bg);
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    display: inline-block;
    padding: 5px 10px;
    background-color: var(--white-color);
    color: var(--text-color);
    border-radius: 20px;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.tag-item:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.tag-item.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tag-item .count {
    font-size: 0.8em;
    color: var(--secondary-color);
    margin-left: 3px;
}

.tag-item.active .count {
    color: rgba(255, 255, 255, 0.8);
}

/* 计数器样式 */
.count {
    font-size: 0.85em;
    color: var(--secondary-color);
    margin-left: 5px;
}

li.active .count {
    color: rgba(255, 255, 255, 0.8);
}

/* 主题切换开关 */
.theme-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
    padding: 10px;
    gap: 10px;
}

.theme-switch span {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

/* 搜索框焦点样式 */
.search-input-container.focused .search-input {
    border-color: var(--primary-color);
    box-shadow: 0 0 8px rgba(138, 92, 245, 0.2);
}

/* 分类下拉箭头 */
.category-link i {
    margin-left: 5px;
    font-size: 0.8em;
    transition: transform 0.3s;
}

.category-item.expanded .category-link i {
    transform: rotate(180deg);
}

/* 子分类显示隐藏动画 */
.subcategory-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}