/* ========================================
   儿童康复公益博客 - 温暖风格样式
   ======================================== */

/* 变量定义 */
:root {
    --primary-color: #FF9F6B;      /* 柔和橙色 */
    --secondary-color: #FFB6C1;    /* 浅粉色 */
    --bg-color: #FFF8F0;           /* 米白色背景 */
    --text-color: #5D5D5D;         /* 深灰色文字 */
    --heading-color: #3D3D3D;      /* 深色标题 */
    --card-bg: #FFFFFF;            /* 卡片白色 */
    --border-radius: 16px;         /* 圆角 */
    --shadow: 0 4px 20px rgba(255, 159, 107, 0.15);
    --shadow-hover: 0 8px 30px rgba(255, 159, 107, 0.25);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

a:hover {
    color: #FF7F3F;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
    gap: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    white-space: nowrap;
    flex-shrink: 0;
}

.logo i {
    font-size: 1.8rem;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.nav-menu::-webkit-scrollbar {
    display: none;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
    font-size: 0.95rem;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--primary-color);
    color: white;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    flex-shrink: 0;
}

.nav-search {
    flex-shrink: 0;
}

.nav-search form {
    display: flex;
    gap: 5px;
}

.nav-search input {
    padding: 8px 15px;
    border: 2px solid #EEE;
    border-radius: 20px;
    outline: none;
    transition: var(--transition);
}

.nav-search input:focus {
    border-color: var(--primary-color);
}

.nav-search button {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-width: 150px;
    list-style: none;
    padding: 10px 0;
}

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

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    color: var(--text-color);
}

.dropdown-menu li a:hover {
    background: var(--secondary-color);
    color: white;
}

/* ========================================
   主体内容
   ======================================== */
.main-content {
    min-height: calc(100vh - 300px);
    padding: 40px 0;
}

/* ========================================
   英雄横幅
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    padding: 25px 40px;
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
}

.hero-tagline {
    font-size: 1.3rem;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* ========================================
   主页布局
   ======================================== */
.main-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}

/* ========================================
   文章卡片
   ======================================== */
.posts-section {
    flex: 1;
}

.section-title {
    font-size: 1.5rem;
    color: var(--heading-color);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary-color);
}

.posts-grid {
    display: grid;
    gap: 25px;
}

.post-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.post-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.post-category {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    color: white;
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.post-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.post-title a {
    color: var(--heading-color);
}

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

.post-summary {
    color: var(--text-color);
    margin-bottom: 15px;
    line-height: 1.6;
}

.post-meta {
    display: flex;
    gap: 20px;
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--secondary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.85rem;
    transition: var(--transition);
}

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

/* ========================================
   侧边栏
   ======================================== */
.sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-widget {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.sidebar-widget h3 {
    font-size: 1.1rem;
    color: var(--heading-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-widget h3 i {
    color: var(--primary-color);
}

.category-list {
    list-style: none;
}

.category-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #EEE;
    color: var(--text-color);
}

.category-list li:last-child a {
    border-bottom: none;
}

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

.category-list .count {
    background: var(--secondary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
}

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

/* ========================================
   文章详情页
   ======================================== */
.post-detail {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.post-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #EEE;
}

.post-header h1 {
    font-size: 2rem;
    color: var(--heading-color);
    margin-bottom: 15px;
}

.post-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
}

.post-content h1,
.post-content h2,
.post-content h3 {
    color: var(--heading-color);
    margin: 25px 0 15px;
}

.post-content p {
    margin-bottom: 15px;
}

.post-content img {
    max-width: 100%;
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.post-content ul,
.post-content ol {
    margin: 15px 0;
    padding-left: 25px;
}

.post-content li {
    margin-bottom: 8px;
}

.post-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px solid #EEE;
}

/* ========================================
   分页
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
}

.page-link {
    display: inline-block;
    padding: 8px 15px;
    background: var(--card-bg);
    border-radius: 20px;
    color: var(--text-color);
    transition: var(--transition);
}

.page-link:hover {
    background: var(--primary-color);
    color: white;
}

.page-link.active {
    background: var(--primary-color);
    color: white;
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.empty-state p {
    font-size: 1.1rem;
}

.search-tip {
    font-size: 0.9rem;
    color: #BBB;
    margin-top: 10px;
}

.search-info {
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* ========================================
   关于页面
   ======================================== */
.page-title {
    text-align: center;
    font-size: 2rem;
    color: var(--heading-color);
    margin-bottom: 40px;
}

.page-title i {
    color: var(--primary-color);
    margin-right: 10px;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.about-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
}

.about-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.about-icon i {
    font-size: 2.5rem;
    color: white;
}

.about-card h2 {
    color: var(--heading-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.about-card ul {
    text-align: left;
    list-style: none;
    padding: 0;
}

.about-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid #EEE;
}

.about-card ul li:before {
    content: "❤ ";
    color: var(--primary-color);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--heading-color);
    color: #AAA;
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-simple {
    display: block;
    text-align: center;
}

.footer-simple .footer-section {
    margin-bottom: 20px;
}

.footer-copyright {
    margin-top: 10px;
    font-size: 0.9rem;
}

.footer-icp {
    margin-top: 8px;
    font-size: 0.85rem;
}

.footer-icp a {
    color: #AAA;
}

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

.footer-section h3 {
    color: white;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section h3 i {
    color: var(--primary-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #AAA;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    font-size: 0.9rem;
}

/* ========================================
   管理后台 - 样式
   ======================================== */
.admin-header {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.admin-header-left,
.admin-header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.admin-header .site-link {
    color: var(--primary-color);
}

.admin-user {
    color: var(--text-color);
}

.admin-container {
    display: flex;
    flex-direction: row;
    min-height: calc(100vh - 70px);
    width: 100%;
}

.admin-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--card-bg);
    box-shadow: 2px 0 10px rgba(0,0,0,0.05);
    padding: 20px 0;
    position: sticky;
    top: 70px;
    height: calc(100vh - 70px);
    overflow-y: auto;
}

.admin-main {
    flex: 1;
    padding: 30px;
    background: #f5f5f5;
    overflow-x: hidden;
    min-width: 0;
}

.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    color: var(--text-color);
    transition: var(--transition);
}

.admin-nav {
    padding: 10px 0;
}

.admin-nav .nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: var(--text-color);
    transition: var(--transition);
}

.admin-nav .nav-item:hover,
.admin-nav .nav-item.active {
    background: var(--primary-color);
    color: white;
}

.admin-nav .nav-divider {
    height: 1px;
    background: #EEE;
    margin: 10px 0;
}

.admin-content {
    width: 100%;
    box-sizing: border-box;
    flex: 1;
}

.admin-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.admin-toolbar .toolbar-left,
.admin-toolbar .toolbar-right {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.admin-toolbar .toolbar-left form.filter-form,
.filter-form {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.filter-form > * {
    flex-shrink: 0;
    margin: 0;
}

.filter-form .select,
.filter-form .input {
    min-width: 120px;
    max-width: 160px;
}

.filter-form {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

/* ========================================
   仪表盘
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--heading-color);
}

.stat-label {
    color: #999;
    font-size: 0.9rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
}

.dashboard-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
}

.dashboard-card h3 {
    color: var(--heading-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ========================================
   表格
   ======================================== */
.table {
    width: 100%;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th,
.table td {
    padding: 15px 20px;
    text-align: left;
}

.table th {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
}

.table tr {
    border-bottom: 1px solid #EEE;
}

.table tr:last-child {
    border-bottom: none;
}

.table tr:hover {
    background: #FFF9F5;
}

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

/* ========================================
   表单
   ======================================== */
.form-group {
    margin-bottom: 20px;
}

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

.form-group label i {
    margin-right: 5px;
    color: var(--primary-color);
}

.form-group.full {
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #EEE;
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

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

textarea {
    resize: vertical;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
}

/* ========================================
   按钮
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: #FF7F3F;
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-danger {
    background: #E74C3C;
    color: white;
}

.btn-danger:hover {
    background: #C0392B;
}

.btn-secondary {
    background: #95A5A6;
    color: white;
}

.btn-sm {
    padding: 8px 15px;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* ========================================
   徽章
   ======================================== */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-success {
    background: #E8F5E9;
    color: #4CAF50;
}

.badge-secondary {
    background: #ECEFF1;
    color: #78909C;
}

/* ========================================
   提示消息
   ======================================== */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.alert-success {
    background: #E8F5E9;
    color: #4CAF50;
    border: 1px solid #4CAF50;
}

.alert-error {
    background: #FFEBEE;
    color: #E74C3C;
    border: 1px solid #E74C3C;
}

.alert-warning {
    background: #FFF3E0;
    color: #FF9800;
    border: 1px solid #FF9800;
}

.flash-messages {
    margin-bottom: 20px;
}

/* ========================================
   模态框
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.modal-header h3 {
    color: var(--heading-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
}

/* ========================================
   信息提示框
   ======================================== */
.info-box {
    background: #E3F2FD;
    border: 1px solid #2196F3;
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.info-box h4 {
    color: #1976D2;
    margin-bottom: 10px;
}

.info-box ul {
    margin: 0;
    padding-left: 20px;
}

.info-box li {
    color: #1976D2;
    margin-bottom: 5px;
}

/* ========================================
   登录页面
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-hover);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.login-header h1 {
    color: var(--heading-color);
    font-size: 1.5rem;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

/* ========================================
   日志详情
   ======================================== */
.log-details {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 992px) {
    .main-wrapper {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .admin-sidebar {
        position: fixed;
        left: -220px;
        top: 70px;
        z-index: 999;
        transition: left 0.3s ease;
    }

    .admin-sidebar:not(.collapsed) {
        left: 0;
    }

    .admin-main {
        margin-left: 0;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--card-bg);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .nav-search {
        display: none;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .post-detail {
        padding: 25px;
    }

    .post-header h1 {
        font-size: 1.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .table {
        font-size: 0.9rem;
    }

    .table th,
    .table td {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .admin-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-form {
        display: flex;
        flex-direction: column;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
    .navbar,
    .footer,
    .admin-header,
    .admin-sidebar,
    .btn,
    .pagination {
        display: none !important;
    }

    .post-content {
        font-size: 12pt;
    }
}