/* ================= 全局样式 ================= */
        :root {
            --bg-color: #f7f7f5;      /* 宣纸白 */
            --primary-color: #3e3c3d; /* 墨色 */
            --accent-color: #c93737;  /* 印章红 */
            --paper-color: #ffffff;
            --text-primary: #2c2c2c;
            --text-secondary: #666666;
            --border-color: #e0deda;
            --link-color: #5d5a5a;
            --shadow: 0 4px 12px rgba(0,0,0,0.05);
            --radius: 4px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Georgia", serif;
            background-color: var(--bg-color);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: url(../images/bg.png) repeat;
        }

        a { text-decoration: none; color: var(--link-color); transition: 0.3s; }
        a:hover { color: var(--accent-color); }
        ul { list-style: none; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* ================= 顶部导航 ================= */
        header {
            background: var(--paper-color);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 10px 0;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            align-items: center;
        }

        .logo img {
            background: var(--paper-color);
            width: auto;
            height: 50px;
            align-items: center;
        }

        /* 桌面端导航 */
        nav ul {
            display: flex;
            gap: 30px;
        }

        .nav-link {
            font-weight: 500;
            padding: 5px 0;
            position: relative;
            cursor: pointer;
        }

        .nav-link.active, .nav-link:hover {
            color: var(--accent-color);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-color);
        }

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

        .avatar-small {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--border-color);
        }

        /* 移动端菜单按钮 (默认隐藏) */
        .menu-toggle {
            display: none;
            cursor: pointer;
            border: none;
            background: none;
        }

        /* ================= 主体内容 ================= */
        main {
            flex: 1;
            padding: 2rem 0;
            min-height: 80vh;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 英雄区 */
        .hero {
            text-align: center;
            padding: 60px 20px;
            background: var(--paper-color);
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
            background-image: linear-gradient(to bottom right, #ffffff, #f9f9f9);
        }

        .hero h1 {
            font-family: "KaiTi", serif;
            font-size: 3rem;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        /* 网格布局 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .grid-6 {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        /* 卡片样式 */
        .card {
            background: var(--paper-color);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
            position: relative;
        }
        
        .card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--border-color);
            transition: background-color 0.3s;
        }
        
        .card:hover::before {
            background-color: var(--accent-color);
        }

        /* 按钮与表单 */
        .btn {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background-color 0.3s, transform 0.1s;
            font-size: 0.9rem;
            background-color: var(--paper-color);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        .btn:hover {
            color: var(--paper-color);
            background-color: #3a5570;
        }
        
        .btn:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .btn-outline:hover {
            border-color: var(--accent-color);
            color: var(--accent-color);
        }

        .filter-bar {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 0.95rem;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--link-color);
            background-color: var(--paper-color);
        }

        .form-group { margin-bottom: 15px; }
        .form-group label { display: block; font-weight: bold; font-size: 0.9rem; }

        /* 列表样式 */
        .list-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
            border-bottom: 1px solid #eee;
            cursor: pointer;
            transition: background 0.2s;
        }

        .list-item:hover { background: #fcfcfc; }

        /* 状态标签 */
        .badge { color: var(--primary-color); }
        .badge-red { color: var(--accent-color); }
        .badge-green { color: #28a745; }

        /* 诗文详情 */
        .poem-detail-layout {
            max-width: 800px;
            margin: 0 auto;
            background: var(--paper-color);
            padding: 4rem 2rem;
            text-align: center;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            position: relative;
        }

        .seal {
            position: absolute;
            top: 2rem;
            right: 2rem;
            width: 60px;
            height: 60px;
            border: 3px solid var(--accent-color);
            color: var(--accent-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            border-radius: 8px;
            font-family: "LiSu", serif;
            transform: rotate(-10deg);
            opacity: 0.8;
        }

        .detail-title { font-size: 2.5rem; font-family: "KaiTi", serif; margin-bottom: 10px; }
        .detail-author { color: var(--text-secondary); margin-bottom: 30px; font-weight: normal; }
        .detail-content {
            font-size: 1.6rem;
            line-height: 1.4;
            font-family: "KaiTi", serif;
            white-space: pre-line;
            margin-bottom: 1rem;
            text-align: left;
        }
        .detail-yiwen {
            font-size: 1.6rem;
            text-align: left;
        }
        .detail-yiwen p {
            margin-top: 1rem;
            color: #81694f;
            letter-spacing: 0.1em;
            font-size: 1.6rem;
            line-height: 1.4;
            font-family: "LiSu", serif;
            white-space: pre-wrap;
        }
        
        .detail-actions { display: flex; justify-content: space-between; gap: 20px; }

        /* 作者详情 */
        .author-profile-header {
            background: var(--paper-color);
            padding: 30px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            gap: 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        
        .author-avatar-large {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 4px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }
        
        .author-info h2 {
            font-size: 2rem;
        }
        
        .author-dynasty {
            margin-left: 0.5rem;
            display: inline-block;
            background: var(--accent-color);
            color: var(--paper-color);
            padding: 2px 8px;
            font-size: 0.9rem;
            border-radius: 4px;
        }
        
        .author-bio {
            color: var(--text-secondary);
            line-height: 1.8;
            width: 100%;
        }

        .author-actions {
            display: flex;
            justify-content: space-between;
            gap: 20px;
        }

        /* 控制台布局 */
        .admin-layout {
            display: grid;
            grid-template-columns: 250px 1fr;
            gap: 30px;
        }
        
        .admin-sidebar {
            background: var(--paper-color);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1.5rem 0;
            height: fit-content;
        }
        
        .sidebar-menu {
            list-style: none;
        }
        
        .sidebar-menu li {
            margin-bottom: 5px;
        }
        
        .sidebar-menu a {
            display: block;
            padding: 10px 20px;
            color: var(--text-secondary);
            border-left: 3px solid transparent;
        }
        
        .sidebar-menu a:hover, .sidebar-menu a.active {
            background-color: rgba(0,0,0,0.03);
            color: var(--link-color);
            border-left-color: var(--accent-color);
        }

        .admin-content .title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
        }

        /* 表格样式 */
        .table-wrapper {
            overflow-x: auto;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
        }
        
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        th {
            background-color: rgba(0,0,0,0.02);
            color: var(--text-secondary);
            font-weight: normal;
        }

        /* ================= 登录页面样式 ================= */
        #login-page {
            display: flex; /* 单独控制，受JS逻辑影响 */
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-color);
            z-index: 2000;
            align-items: center;
            justify-content: center;
        }
        
        #login-page.active { display: flex; }

        .login-box {
            background: var(--paper-color);
            padding: 40px;
            width: 100%;
            max-width: 350px;
            border-radius: var(--radius);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            text-align: center;
        }
        
        .login-box img {
            width: 100%;
            border-radius: var(--radius);
        }

        .login-btn {
            width: 100%;
            padding: 12px;
            background: var(--primary-color);
            color: var(--paper-color);
            border: none;
            border-radius: 4px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            margin-top: 10px;
        }
        
        .login-btn:hover { background: var(--accent-color); }

        .log-btn {
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 4px 10px;
            text-align: center;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        .log-btn:hover {
            color: var(--accent-color);
        }

        /* 辅助类 */
        .section-title {
            font-size: 1.5rem;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            align-items: flex-end;
            margin: 1.5rem 0;
            border-left: 4px solid var(--accent-color);
            padding-left: 15px;
        }

        .poem-card {
            text-align: center;
            padding: 1rem;
            cursor: pointer;
            transition: transform 0.3s;
        }
        
        .poem-card:hover {
            transform: translateY(-5px);
        }
        
        .poem-card .content {
            font-size: 1.1rem;
            margin: 1rem 0;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .poem-card .meta {
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 0.8rem;
            margin-top: 1rem;
        }

        .author-widget {
            display: flex;
            align-items: center;
            gap: 15px;
            cursor: pointer;
            transition: background 0.3s;
        }
        
        .author-widget:hover {
            background-color: var(--paper-color);
        }
        
        .author-widget img {
            max-width: 120px;
            max-height: 120px;
            border-radius: 5px;
            object-fit: cover;
        }
        .author-widget .content {
            font-size: 0.85rem;
            line-height: 1.4;
            margin-top: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .link-card {
            background: var(--paper-color);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 0.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 0.5rem;
            text-align: center;
            position: relative;
        }
        
        .link-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--border-color);
            transition: background-color 0.3s;
        }
        
        .link-card:hover::before {
            background-color: var(--accent-color);
        }

        .btn-back {
            background: none;
            border: none;
            color: var(--text-secondary);
            cursor: pointer;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 0.9rem;
        }
        
        .btn-back:hover { color: var(--primary-color); }

        /* 页脚 */
        footer {
            background: var(--paper-color);
            padding: 20px 0;
            text-align: center;
            border-top: 1px solid var(--border-color);
            margin-top: auto;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* ================= 响应式媒体查询 ================= */
        @media (max-width: 768px) {
            .logo img { height: 30px; }
            .menu-toggle { display: block; }

            nav {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--paper-color);
                box-shadow: 0 4px 10px rgba(0,0,0,0.1);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease-out;
            }

            nav.open {
                max-height: 300px; /* 展开高度 */
            }

            nav ul {
                flex-direction: column;
                padding: 10px 0;
                gap: 0;
            }

            .nav-link {
                display: block;
                padding: 15px 20px;
                border-bottom: 1px solid #f0f0f0;
            }
            
            .grid-3 {
                grid-template-columns: 1fr !important; /* 手机端强制单列 */
            }

            .grid-6 {
                grid-template-columns: 1fr !important; /* 手机端强制单列 */
            }
            
            .admin-layout {
                grid-template-columns: 1fr;
            }
        }