/* ========================================
   Ayan的小站 - 统一样式框架
   风格：简约、文艺、温暖
   ======================================== */

/* CSS变量定义 */
:root {
    --primary-color: #8b7355;
    --primary-light: #a89078;
    --accent-color: #c9a86c;
    --text-color: #4a4a4a;
    --text-light: #7a7a7a;
    --bg-color: #faf8f5;
    --bg-card: #ffffff;
    --border-color: #e8e4df;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.8;
    font-size: 16px;
    min-height: 100vh;
}

/* 链接样式 */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--border-color);
    z-index: 1000;
    padding: 0 20px;
}

.nav-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo {
    font-size: 18px;
    font-weight: 500;
    color: var(--primary-color);
    letter-spacing: 1px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    font-size: 14px;
    color: var(--text-light);
    position: relative;
    padding: 4px 0;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--primary-color);
    padding: 5px;
}

/* ========================================
   主内容区域
   ======================================== */
.main-content {
    padding-top: 80px;
    padding-bottom: 60px;
    min-height: calc(100vh - 100px);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   首页样式
   ======================================== */
.hero-section {
    text-align: center;
    padding: 50px 20px 40px;
}

.site-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 12px;
    letter-spacing: 4px;
    white-space: nowrap;
}

.site-subtitle {
    font-size: 15px;
    color: var(--text-light);
    font-weight: 300;
    letter-spacing: 2px;
}

/* 首页图片展示 */
.hero-images {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px 0;
    flex-wrap: wrap;
}

.hero-image {
    width: 45%;
    max-width: 320px;
    border-radius: var(--radius);
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* 首页文字说明 */
.intro-text {
    text-align: left;
    padding: 20px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 2;
}

/* ========================================
   文章卡片
   ======================================== */
.section-title {
    font-size: 20px;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 1px;
}

.essay-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.essay-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
}

.essay-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.essay-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.essay-title {
    font-size: 17px;
    font-weight: 500;
    color: var(--text-color);
}

.essay-date {
    font-size: 12px;
    color: var(--text-light);
}

.essay-preview {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.essay-images {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.essay-thumb {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
}

.essay-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--bg-color);
    color: var(--text-light);
    font-size: 11px;
    border-radius: 20px;
    margin-left: 10px;
}

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

.form-label {
    display: block;
    font-size: 14px;
    color: var(--text-color);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-color);
    background: var(--bg-card);
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(139,115,85,0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
    line-height: 1.8;
}

/* 图片上传 */
.image-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-card);
}

.image-upload-area:hover {
    border-color: var(--primary-light);
    background: rgba(139,115,85,0.02);
}

.upload-icon {
    font-size: 36px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.upload-text {
    font-size: 14px;
    color: var(--text-light);
}

/* 预览图片 */
.preview-images {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.preview-item {
    position: relative;
    width: 100px;
    height: 100px;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.preview-remove {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 22px;
    height: 22px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: 25px;
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

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

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

.btn-accent:hover {
    opacity: 0.9;
}

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

.btn-danger:hover {
    background: #c0392b;
}

.btn-small {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-group {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

/* ========================================
   管理后台样式
   ======================================== */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.admin-tab {
    padding: 12px 24px;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.admin-tab:hover {
    color: var(--primary-color);
}

.admin-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.admin-panel {
    display: none;
}

.admin-panel.active {
    display: block;
}

/* 管理项 */
.manage-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.manage-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.manage-item-title {
    font-size: 16px;
    font-weight: 500;
}

.manage-item-actions {
    display: flex;
    gap: 8px;
}

.manage-item-meta {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.manage-item-content {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-approved {
    background: #d4edda;
    color: #155724;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24;
}

.status-private {
    background: #e2e3e5;
    color: #383d41;
}

/* ========================================
   私密空间
   ======================================== */
.password-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    text-align: center;
}

.password-box {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 360px;
    width: 100%;
}

.password-title {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.password-error {
    color: #e74c3c;
    font-size: 13px;
    margin-top: 10px;
}

/* ========================================
   文章详情页
   ======================================== */
.essay-detail {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.essay-detail-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.essay-detail-title {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 10px;
}

.essay-detail-meta {
    font-size: 13px;
    color: var(--text-light);
}

.essay-detail-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-color);
}

.essay-detail-content p {
    margin-bottom: 16px;
}

.essay-detail-images {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.essay-detail-images img {
    width: 100%;
    border-radius: var(--radius);
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-text {
    font-size: 15px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-light);
    font-size: 13px;
}

/* ========================================
   弹窗/模态框
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 30px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-color);
}

/* ========================================
   图片查看器
   ======================================== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.95);
    z-index: 3000;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 36px;
    cursor: pointer;
}

/* ========================================
   提示消息
   ======================================== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-color);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 14px;
    z-index: 4000;
    opacity: 0;
    transition: opacity 0.3s;
}

.toast.show {
    opacity: 1;
}

/* ========================================
   移动端适配
   ======================================== */
@media (max-width: 768px) {
    /* 导航栏 */
    .nav-container {
        height: 55px;
    }

    .nav-logo {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 55px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 15px 20px;
        gap: 0;
        border-top: 1px solid var(--border-color);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

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

    .nav-links a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
        width: 100%;
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    /* 主内容 */
    .main-content {
        padding-top: 70px;
    }

    .container {
        padding: 0 15px;
    }

    /* 首页 */
    .hero-section {
        padding: 30px 15px 25px;
    }

    .site-title {
        font-size: 22px;
        letter-spacing: 3px;
    }

    .site-subtitle {
        font-size: 13px;
    }

    .hero-images {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .hero-image {
        width: 85%;
        max-width: none;
    }

    .intro-text {
        padding: 15px;
        font-size: 14px;
    }

    /* 文章卡片 */
    .section-title {
        font-size: 18px;
    }

    .essay-card {
        padding: 18px;
    }

    .essay-title {
        font-size: 16px;
    }

    .essay-preview {
        font-size: 13px;
    }

    /* 表单 */
    .form-input,
    .form-textarea {
        font-size: 14px;
        padding: 10px 14px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }

    /* 管理后台 */
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .admin-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .admin-tab {
        padding: 10px 16px;
        font-size: 13px;
        white-space: nowrap;
    }

    .manage-item {
        padding: 15px;
    }

    .manage-item-header {
        flex-direction: column;
        gap: 12px;
    }

    .manage-item-actions {
        width: 100%;
        justify-content: flex-end;
    }

    /* 详情页 */
    .essay-detail {
        padding: 20px;
    }

    .essay-detail-title {
        font-size: 20px;
    }

    .essay-detail-content {
        font-size: 15px;
    }

    /* 弹窗 */
    .modal-content {
        padding: 20px;
        margin: 15px;
    }

    /* 密码框 */
    .password-box {
        padding: 30px 20px;
    }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
    .navbar,
    .footer,
    .btn,
    .modal {
        display: none !important;
    }

    .main-content {
        padding-top: 0;
    }
}