:root {
            --primary: #ff4757;
            --primary-dark: #ff3344;
            --primary-light: #ffe0e3;
            --primary-gradient: linear-gradient(135deg, #ff6b7a 0%, #ff4757 100%);
            --bg: #f5f6fa;
            --card-bg: #ffffff;
            --text: #1f2937;
            --text-light: #6b7280;
            --border: #e5e7eb;
            --shadow: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 24px rgba(0,0,0,0.08);
        }
        
        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
        }
        
        a { text-decoration: none; color: inherit; }
        
        /* ========== 顶部导航栏 ========== */
        .navbar {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        
        .navbar.scrolled {
            background: rgba(255,255,255,0.98);
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
        }
        
        .navbar.scrolled .logo {
            transform: scale(0.9);
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #ff6b7a, var(--primary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
            transition: all 0.3s;
        }
        
        .logo:hover .logo-icon {
            transform: rotate(5deg) scale(1.05);
            box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
        }
        
        .nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        
        .nav-menu a {
            color: var(--text-light);
            font-size: 0.9375rem;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.2s;
        }
        
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }
        
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary-gradient);
            border-radius: 2px 2px 0 0;
        }
        
        .nav-actions {
            display: flex;
            gap: 0.75rem;
        }
        
        .btn {
            padding: 0.5rem 1.25rem;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            border: none;
        }
        
        .btn-ghost {
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border);
        }
        
        .btn-ghost:hover {
            background: var(--bg);
            color: var(--primary);
            border-color: var(--primary);
        }
        
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 2px 8px rgba(255,71,87,0.25);
        }
        
        .btn-primary:hover {
            box-shadow: 0 4px 12px rgba(255,71,87,0.35);
            transform: translateY(-1px);
        }
        
        /* ========== Hero 头部（简洁版） ========== */
        
        .hero {
            background: #f9fafb;
            position: relative;
            padding: 4rem 0;
            background-size: 400% 400%;
            animation: backgroundMove 20s ease infinite;
            z-index: 1;
        }
        
        @keyframes backgroundMove {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 10%;
            right: 20%;
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, #ffd700, #ffb347);
            border-radius: 50%;
            box-shadow: 0 0 40px rgba(255, 215, 0, 0.8);
        }
        
        @keyframes sunColorChange {
            0% {
                background: linear-gradient(135deg, #ffd700, #ffb347);
                box-shadow: 0 0 50px rgba(255, 215, 0, 0.8);
            }
            50% {
                background: linear-gradient(135deg, #ff6b6b, #ff9f43);
                box-shadow: 0 0 70px rgba(255, 107, 107, 0.9);
            }
            100% {
                background: linear-gradient(135deg, #ffd700, #ffb347);
                box-shadow: 0 0 50px rgba(255, 215, 0, 0.8);
            }
        }
        
        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            position: relative;
            z-index: 2;
        }
        
        /* 星空效果 */
        .hero.starry-night {
            background: #1a1a2e;
            position: relative;
        }
        
        .hero.starry-night::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: 
                radial-gradient(3px 3px at 50px 50px, #fff, transparent),
                radial-gradient(2px 2px at 120px 100px, #fff, transparent),
                radial-gradient(1px 1px at 180px 150px, #fff, transparent),
                radial-gradient(2px 2px at 250px 80px, #fff, transparent),
                radial-gradient(3px 3px at 320px 180px, #fff, transparent);
            background-repeat: repeat;
            background-size: 400px 400px;
            animation: twinkle 2s ease-in-out infinite alternate, starMove 60s linear infinite;
        }
        
        @keyframes twinkle {
            from {
                opacity: 0.6;
            }
            to {
                opacity: 1;
            }
        }
        
        @keyframes starMove {
            0% {
                background-position: 0 0;
            }
            100% {
                background-position: 200px 200px;
            }
        }
        
        /* 月亮效果 */
        .hero.starry-night::before {
            content: '';
            position: absolute;
            top: 10%;
            right: 20%;
            width: 100px;
            height: 100px;
            background: #f0f0f0;
            border-radius: 50%;
            box-shadow: 0 0 50px rgba(240, 240, 240, 0.8);
            animation: moonMove 120s linear infinite;
        }
        
        @keyframes moonMove {
            0% {
                transform: translateX(0) translateY(0);
            }
            25% {
                transform: translateX(-20px) translateY(10px);
            }
            50% {
                transform: translateX(0) translateY(20px);
            }
            75% {
                transform: translateX(20px) translateY(10px);
            }
            100% {
                transform: translateX(0) translateY(0);
            }
        }
        
        /* 太阳动态效果 */
        .hero::before {
            animation: sunPulse 4s ease-in-out infinite alternate;
        }
        
        @keyframes sunPulse {
            from {
                transform: scale(1);
            }
            to {
                transform: scale(1.05);
            }
        }
        
        .hero-text {
            text-align: center;
            margin-bottom: 2rem;
        }
        
        .hero-text h1 {
            font-size: 1.875rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        
        .hero-text p {
            font-size: 0.9375rem;
            color: rgba(255,255,255,0.9);
        }
        
        .hero-search {
            background: #fff;
            border: 2px solid var(--border);
            border-radius: 12px;
            padding: 0.75rem;
            max-width: 640px;
            margin: 0 auto;
            transition: all 0.3s;
            position: relative;
            z-index: 1;
        }
        
        .hero-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(255,71,87,0.1);
        }
        
        /* 搜索下拉框 */
        .search-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #fff;
            border: 1px solid var(--border);
            border-top: none;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.15);
            z-index: 99999;
            max-height: 350px;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            pointer-events: none;
        }
        
        .search-dropdown.show {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        
        .hero-search {
            position: relative;
        }
        
        .dropdown-header {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
            background: #f9fafb;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .dropdown-header .header-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .dropdown-header .header-title::before {
            content: '🔥';
            font-size: 0.875rem;
        }
        
        .dropdown-header .header-action {
            font-size: 0.75rem;
            color: var(--primary);
            cursor: pointer;
            transition: color 0.2s;
        }
        
        .dropdown-header .header-action:hover {
            color: var(--primary-dark);
        }
        
        .dropdown-section {
            margin-bottom: 0.5rem;
        }
        
        .dropdown-section-title {
            padding: 0.5rem 1rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .dropdown-list {
            padding: 0.25rem 0;
        }
        
        .dropdown-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            cursor: pointer;
            transition: all 0.2s;
            border-radius: 8px;
            margin: 0 0.5rem;
        }
        
        .dropdown-item:hover {
            background-color: #f3f4f6;
            transform: translateX(4px);
        }
        
        .dropdown-rank {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: #f3f4f6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text);
            flex-shrink: 0;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        
        .dropdown-rank.top {
            background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
            color: #fff;
            box-shadow: 0 2px 4px rgba(255,107,107,0.3);
        }
        
        .dropdown-text {
            flex: 1;
            font-size: 0.875rem;
            color: var(--text);
            line-height: 1.4;
        }
        
        .dropdown-item .dropdown-info {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 0.25rem;
        }
        
        /* 搜索历史项目 */
        .dropdown-item.history {
            padding-left: 2.5rem;
        }
        
        .dropdown-item.history::before {
            content: '🕒';
            position: absolute;
            left: 1rem;
            font-size: 0.875rem;
        }
        
        /* 滚动条样式 */
        .search-dropdown::-webkit-scrollbar {
            width: 6px;
        }
        
        .search-dropdown::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 0 0 12px 0;
        }
        
        .search-dropdown::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 3px;
        }
        
        .search-dropdown::-webkit-scrollbar-thumb:hover {
            background: #a1a1a1;
        }
        
        .search-box {
            display: flex;
            gap: 0.5rem;
        }
        
        .search-input {
            flex: 1;
            padding: 0.625rem 1rem;
            border: none;
            border-radius: 8px;
            font-size: 0.9375rem;
            outline: none;
        }
        
        .search-btn {
            padding: 0.625rem 1.5rem;
            background: var(--primary-gradient);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 0.9375rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .search-btn:hover {
            box-shadow: 0 4px 12px rgba(255,71,87,0.3);
        }
        
        .search-tags {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }
        
        .search-tag {
            padding: 0.25rem 0.75rem;
            background: #f9fafb;
            border: 1px solid var(--border);
            border-radius: 16px;
            font-size: 0.75rem;
            color: var(--text-light);
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .search-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        
        /* ========== 主体容器（两栏布局） ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1.5rem;
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2rem;
            position: relative;
            
        }
        
        /* 全宽区域 - 突破 container 限制 */
        .full-width-section {
            grid-column: 1 / -1;
            width: calc(100vw - 3rem);
            margin-left: calc(-50vw + 50%);
            margin-right: calc(-50vw + 50%);
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        
        .section-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        /* ========== 生活百科（内容丰富版） ========== */
        .life-section {
            background: #fff;
            border-radius: 12px;
            padding: 1.25rem;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border);
            grid-column: 1 / -1;
        }
        
        .life-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.125rem;
        }
        
        .life-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .life-more {
            font-size: 0.8125rem;
            color: var(--primary);
            font-weight: 500;
            cursor: pointer;
            transition: color 0.2s;
        }
        
        .life-more:hover {
            color: var(--primary-dark);
        }
        
        .life-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }
        
        .life-card {
            background: #fff;
            border-radius: 10px;
            border: 1px solid var(--border);
            padding: 1rem;
            cursor: pointer;
            transition: all 0.25s;
        }
        
        .life-card:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 16px rgba(255,71,87,0.12);
            transform: translateY(-3px);
        }
        
        .life-card-header {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 0.75rem;
        }
        
        .life-card-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        
        .life-card-icon.medical { background: linear-gradient(135deg, #fee2e2, #fca5a5); }
        .life-card-icon.tech { background: linear-gradient(135deg, #dbeafe, #93c5fd); }
        .life-card-icon.life { background: linear-gradient(135deg, #fef3c7, #fde68a); }
        .life-card-icon.safety { background: linear-gradient(135deg, #ede9fe, #c4b5fd); }
        .life-card-icon.finance { background: linear-gradient(135deg, #ccfbf1, #99f6e4); }
        .life-card-info {
            flex: 1;
            min-width: 0;
        }
        
        .life-card-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.3125rem;
            line-height: 1.35;
        }
        
        .life-card-summary {
            font-size: 0.75rem;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .life-card-divider {
            height: 1px;
            background: var(--border);
            margin: 0.75rem 0;
        }
        
        .life-card-section {
            margin-bottom: 0.625rem;
        }
        
        .life-card-label {
            font-size: 0.6875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.375rem;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        
        .life-card-label.symptoms { color: #ef4444; }
        .life-card-label.solutions { color: #10b981; }
        
        .life-card-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .life-card-list li {
            font-size: 0.75rem;
            color: var(--text-light);
            line-height: 1.5;
            padding: 0.25rem 0;
            padding-left: 0.875rem;
            position: relative;
        }
        
        .life-card-list li::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }
        
        .life-card-tips {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            border: 1px solid #fde68a;
            border-radius: 6px;
            padding: 0.625rem;
            margin-top: 0.625rem;
        }
        
        .life-card-tips-title {
            font-size: 0.6875rem;
            font-weight: 600;
            color: #92400e;
            margin-bottom: 0.25rem;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        
        .life-card-tips-text {
            font-size: 0.6875rem;
            color: #78350f;
            line-height: 1.45;
        }
        
        .life-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.75rem;
            padding-top: 0.625rem;
            border-top: 1px dashed var(--border);
        }
        
        .life-card-tag {
            padding: 0.15rem 0.5rem;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 4px;
            font-size: 0.625rem;
            font-weight: 600;
        }
        
        .life-card-views {
            font-size: 0.6875rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 0.1875rem;
        }
        
        @media (max-width: 768px) {
            .life-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 480px) {
            .life-grid {
                grid-template-columns: 1fr;
            }
            
            .life-card {
                padding: 0.875rem;
            }
        }
        
        /* ========== 诗人推荐（优化版） ========== */
        .poet-section {
            margin-bottom: 2rem;
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            border: 1px solid var(--border);
            grid-column: 1 / -1;
            text-align: center;
        }
        
        .poet-section .section-title {
            margin-bottom: 1.25rem;
            justify-content: center;
        }
        
        .poet-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            max-width: 1200px;
            margin: 0 auto;
            grid-auto-rows: 1fr;
        }
        
        @media (max-width: 1024px) {
            .poet-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .poet-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 480px) {
            .poet-grid {
                grid-template-columns: 1fr;
            }
        }
        
        .poet-card {
            background: #fff;
            border-radius: 12px;
            padding: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            border: 1px solid #e5e7eb;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        
        .poet-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #fff5f5 0%, #ffe0e3 100%);
            margin: 0 auto 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            border: 2px solid #ffe0e3;
        }
        
        .poet-name {
            font-size: 1rem;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 0.25rem;
        }
        
        .poet-tag {
            display: inline-block;
            padding: 0.125rem 0.4rem;
            background: linear-gradient(135deg, #ff6b7a, #ff4757);
            color: #fff;
            border-radius: 10px;
            font-size: 0.625rem;
            font-weight: 600;
            margin-bottom: 0.375rem;
        }
        
        .poet-desc {
            font-size: 0.75rem;
            color: #6b7280;
            line-height: 1.5;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .poet-works-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding-top: 0.5rem;
            border-top: 1px dashed #e5e7eb;
        }
        
        .poet-works-count {
            font-size: 0.6875rem;
            color: #ff4757;
            font-weight: 600;
        }
        
        .poet-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.1);
            border-color: #ff4757;
        }
        
        .poet-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #fff5f5 0%, #ffe0e3 100%);
            margin: 0 auto 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.25rem;
            border: 3px solid #ffe0e3;
        }
        
        .poet-name {
            font-size: 1.125rem;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 0.375rem;
        }
        
        .poet-tag {
            display: inline-block;
            padding: 0.15rem 0.5rem;
            background: linear-gradient(135deg, #ff6b7a, #ff4757);
            color: #fff;
            border-radius: 12px;
            font-size: 0.6875rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        

        
        .poet-meta {
            font-size: 0.75rem;
            color: #6b7280;
            margin-bottom: 0.625rem;
        }
        
        .poet-desc {
            font-size: 0.8125rem;
            color: #6b7280;
            line-height: 1.6;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .poet-works-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding-top: 0.75rem;
            border-top: 1px dashed #e5e7eb;
        }
        
        .poet-works-count {
            font-size: 0.75rem;
            color: #ff4757;
            font-weight: 600;
        }
        
        .poet-works-list {
            display: flex;
            gap: 0.375rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .poet-work-item {
            padding: 0.15rem 0.5rem;
            background: #f9fafb;
            color: #6b7280;
            border-radius: 6px;
            font-size: 0.6875rem;
            transition: all 0.2s;
        }
        
        .poet-card:hover .poet-work-item {
            background: #ffe0e3;
            color: #ff4757;
        }
        
        /* ========== 古诗推荐 ========== */
        .poem-section {
            margin-bottom: 2rem;
            border-radius: 16px;
            padding: 1.25rem;
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
        }
        
        .poem-section .poem-list {
            max-width: 100%;
            margin: 0;
        }
        
        .poem-section .section-title {
            position: relative;
            padding-left: 1rem;
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .poem-section .section-title-left {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .poem-section .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 70%;
            background: linear-gradient(180deg, #3b82f6, #8b5cf6);
            border-radius: 2px;
        }
        
        .poem-section .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 40px;
            height: 2px;
            background: linear-gradient(90deg, #3b82f6, transparent);
        }
        
        .poem-refresh-btn {
            display: flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.375rem 0.75rem;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            color: #fff;
            border: none;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
            z-index: 10;
        }
        
        .poem-refresh-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(59,130,246,0.3);
        }
        
        .poem-refresh-btn svg {
            width: 14px;
            height: 14px;
        }
        
        .poem-refresh-btn.spinning svg {
            animation: spin 0.6s ease-in-out;
        }
        
        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .poem-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            grid-auto-rows: 1fr;
        }
        
        .poem-card {
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-radius: 12px;
            padding: 0.875rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.12);
            border: 1px solid rgba(0,0,0,0.08);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        /* 半透明遮罩，让背景图可见 */
        .poem-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(255,255,255,0.35);
            z-index: 0;
        }
        
        .poem-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow, 0 8px 24px rgba(59,130,246,0.15));
            border-color: var(--card-color, #3b82f6);
        }
        
        .poem-card:hover .poem-title {
            color: var(--card-color, #3b82f6);
        }
        
        /* 古诗正文区域 */
        .poem-text-content {
            position: relative;
            z-index: 1;
            padding: 0.75rem 0.75rem 0.625rem;
            text-align: center;
            background: rgba(255,255,255,0.3);
            border-radius: 8px;
            margin-bottom: 0.625rem;
            border-bottom: 1px dashed rgba(0,0,0,0.06);
            min-height: 140px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            backdrop-filter: blur(2px);
        }
        
        .poem-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.375rem;
            transition: color 0.2s;
        }
        
        .poem-author {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-bottom: 0.625rem;
        }
        
        .poem-lines {
            font-size: 0.9375rem;
            line-height: 2;
            color: #374151;
            font-weight: 500;
        }
        
        .poem-line {
            display: block;
            margin-bottom: 0.25rem;
        }
        
        .poem-line:last-child {
            margin-bottom: 0;
        }
        
        /* 底部信息区域 */
        .poem-footer {
            position: relative;
            z-index: 1;
            padding: 0.625rem 0.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255,255,255,0.3);
            border-radius: 6px;
            backdrop-filter: blur(2px);
        }
        
        .poem-tag {
            padding: 0.1875rem 0.5rem;
            background: var(--card-tag-bg, linear-gradient(135deg, #dbeafe, #bfdbfe));
            color: var(--card-color, #2563eb);
            border-radius: 6px;
            font-size: 0.6875rem;
            font-weight: 500;
        }
        
        .poem-stats {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.75rem;
            color: var(--text-light);
        }
        
        .stat-icon {
            margin-right: 0.25rem;
        }
        
        .poem-likes {
            cursor: pointer;
            transition: all 0.2s;
            background: none;
            border: none;
            padding: 0;
            font: inherit;
            color: inherit;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        
        .poem-likes:hover {
            transform: scale(1.1);
            color: #ff4757;
        }
        
        .poem-likes:hover i {
            color: #ff4757;
        }
        
        .poem-likes i {
            transition: color 0.2s;
        }
        
        .poem-likes.liked i {
            color: #ff4757;
        }
        
        @media (max-width: 768px) {
            /* 古诗模块移动端优化 */
            .poem-section {
                padding: 0.875rem;
                margin-bottom: 1rem;
            }
            
            .poem-section .section-title {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                gap: 0.5rem;
                margin-bottom: 0.75rem;
            }
            
            .poem-section .section-title-left {
                flex: 1;
            }
            
            .poem-section .section-title span {
                font-size: 0.9375rem;
            }
            
            .poem-refresh-btn {
                padding: 0.25rem 0.5rem;
                font-size: 0.6875rem;
            }
            
            .poem-refresh-btn svg {
                width: 12px;
                height: 12px;
            }
            
            .poem-list {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            
            .poem-card {
                padding: 0.75rem;
            }
            
            .poem-text-content {
                padding: 0.625rem 0.625rem 0.5rem;
            }
            
            .poem-title {
                font-size: 1rem;
                margin-bottom: 0.25rem;
            }
            
            .poem-author {
                font-size: 0.6875rem;
                margin-bottom: 0.5rem;
            }
            
            .poem-lines {
                font-size: 0.875rem;
                line-height: 1.9;
            }
            
            .poem-footer {
                padding: 0.5rem 0.625rem;
            }
            
            .poem-tag {
                padding: 0.125rem 0.375rem;
                font-size: 0.625rem;
            }
            
            .poem-stats {
                font-size: 0.6875rem;
                gap: 0.5rem;
            }
            
            /* 热门标签移动端隐藏 */
            .life-tags {
                display: none;
            }
            
            /* 侧边栏热门标签移动端隐藏 */
            .sidebar-card:nth-child(3) {
                display: none;
            }
        }
        
        /* ========== 知识点卡片 ========== */
        .knowledge-section {
            margin-bottom: 2rem;
        }
        
        .knowledge-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        /* 简洁版知识点卡片 */
        .knowledge-card-compact {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 1rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0,0,0,0.04);
            transition: all 0.2s;
        }
        
        .knowledge-card-compact:hover {
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            border-color: var(--primary-light);
        }
        
        .knowledge-card-compact .knowledge-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.625rem;
            flex-wrap: wrap;
        }
        
        .knowledge-card-compact .knowledge-difficulty {
            padding: 0.125rem 0.375rem;
            font-size: 0.625rem;
            border-radius: 3px;
        }
        
        .knowledge-card-compact .knowledge-meta {
            display: flex;
            gap: 0.375rem;
            font-size: 0.625rem;
        }
        
        .knowledge-card-compact .knowledge-grade,
        .knowledge-card-compact .knowledge-subject,
        .knowledge-card-compact .knowledge-level {
            background: #f3f4f6;
            padding: 0.125rem 0.25rem;
            border-radius: 3px;
        }
        
        .knowledge-card-compact .knowledge-main-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.625rem;
            line-height: 1.4;
        }
        
        .knowledge-card-compact .knowledge-compact-content {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .knowledge-card-compact .knowledge-row {
            display: flex;
            gap: 0.375rem;
            font-size: 0.75rem;
            line-height: 1.6;
        }
        
        .knowledge-card-compact .knowledge-row-label {
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
            min-width: 2.5rem;
        }
        
        .knowledge-card-compact .knowledge-row span:last-child {
            color: var(--text-light);
        }
        
        /* 详细版知识点（保留） */
        .knowledge-card-detailed {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 1.25rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0,0,0,0.04);
        }
        
        .knowledge-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 0.75rem;
            flex-wrap: wrap;
        }
        
        .knowledge-difficulty {
            padding: 0.1875rem 0.5rem;
            border-radius: 4px;
            font-size: 0.6875rem;
            font-weight: 600;
        }
        
        .difficulty-hard {
            background: linear-gradient(135deg, #ff6b7a, #ff4757);
            color: #fff;
        }
        
        .difficulty-medium {
            background: linear-gradient(135deg, #4facfe, #00f2fe);
            color: #fff;
        }
        
        .difficulty-easy {
            background: linear-gradient(135deg, #10b981, #059669);
            color: #fff;
        }
        
        .knowledge-meta {
            display: flex;
            gap: 0.5rem;
            font-size: 0.6875rem;
            color: var(--text-light);
        }
        
        .knowledge-grade, .knowledge-subject, .knowledge-level {
            background: #f3f4f6;
            padding: 0.125rem 0.375rem;
            border-radius: 4px;
        }
        
        .knowledge-main-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.625rem;
            line-height: 1.5;
        }
        
        .knowledge-summary {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 1rem;
            padding: 0.75rem;
            background: #f9fafb;
            border-radius: 8px;
            border-left: 3px solid var(--primary);
        }
        
        .knowledge-detail-section {
            margin-bottom: 0.875rem;
        }
        
        .knowledge-detail-section:last-child {
            margin-bottom: 0;
        }
        
        .knowledge-detail-title {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.375rem;
        }
        
        .knowledge-detail-title::before {
            content: '';
            width: 3px;
            height: 14px;
            background: var(--primary);
            border-radius: 2px;
        }
        
        .knowledge-detail-list, .knowledge-example-list {
            margin: 0;
            padding-left: 1.25rem;
        }
        
        .knowledge-detail-list li, .knowledge-example-list li {
            font-size: 0.8125rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 0.375rem;
        }
        
        .knowledge-example-list {
            list-style: decimal;
        }
        
        .knowledge-detail-list {
            list-style: disc;
        }
        
        /* 旧版网格布局（保留） */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }
        
        .knowledge-card {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 1.25rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0,0,0,0.04);
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .knowledge-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        
        .knowledge-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }
        

        
        .knowledge-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
        
        .knowledge-desc {
            font-size: 0.875rem;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .knowledge-count {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 0.75rem;
        }
        
        /* ========== 文章列表 ========== */
        .article-section {
            margin-bottom: 2rem;
        }
        
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        .article-card {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 1.25rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0,0,0,0.04);
            transition: all 0.3s;
            cursor: pointer;
        }
        
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        
        /* 带图片的文章卡片 */
        .article-card.has-img {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem;
        }
        
        .article-card.has-img .article-image {
            width: 200px;
            height: 130px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }
        
        .article-card.has-img .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .article-card.has-img:hover .article-image img {
            transform: scale(1.08);
        }
        
        .article-card.has-img .article-content {
            flex: 1;
            min-width: 0;
        }
        
        /* 不带图片的文章卡片 */
        .article-card .article-content {
            width: 100%;
        }
        
        .article-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
            transition: color 0.2s;
        }
        
        .article-card:hover .article-title {
            color: var(--primary);
        }
        
        .article-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.75rem;
            color: var(--text-light);
        }
        
        .article-category {
            padding: 0.1875rem 0.5rem;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 4px;
            font-weight: 500;
        }
        
        /* ========== 侧边栏 ========== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }
        

        
        .sidebar-card {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 1.25rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0,0,0,0.04);
        }
        
        .sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--primary-light);
        }
        
        /* 热门榜单 */
        .hot-list {
            list-style: none;
        }
        
        .hot-item {
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(0,0,0,0.04);
            display: flex;
            gap: 0.75rem;
            align-items: center;
            cursor: pointer;
            transition: background-color 0.2s;
        }
        
        .hot-item:hover {
            background-color: rgba(0,0,0,0.02);
        }
        
        .hot-item:last-child {
            border-bottom: none;
        }
        
        .hot-rank {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: #f3f4f6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8125rem;
            font-weight: 700;
            flex-shrink: 0;
            color: var(--text);
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
        }
        
        .hot-rank.top {
            background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
            color: #fff;
            box-shadow: 0 2px 4px rgba(255,107,107,0.3);
        }
        
        .hot-title {
            flex: 1;
            font-size: 0.9375rem;
            line-height: 1.4;
            color: var(--text);
            font-weight: 500;
            margin-bottom: 0.25rem;
        }
        
        .hot-author {
            font-size: 0.75rem;
            color: var(--text-light);
            line-height: 1.4;
        }
        
        .hot-item:hover .hot-title {
            color: var(--primary);
        }
        
        .hot-item:hover .hot-author {
            color: var(--text);
        }
        
        /* 专题推荐 */
        .sidebar-topics .topic-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        
        .topic-item {
            display: flex;
            gap: 0.75rem;
            padding: 0.75rem;
            background: #f9fafb;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .topic-item:hover {
            background: #f3f4f6;
            transform: translateX(4px);
        }
        
        .topic-cover {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        
        .topic-info {
            flex: 1;
            min-width: 0;
        }
        
        .topic-title {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.1875rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .topic-desc {
            font-size: 0.6875rem;
            color: var(--text-light);
            margin-bottom: 0.375rem;
        }
        
        .topic-progress {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .topic-progress-bar {
            flex: 1;
            height: 4px;
            background: #e5e7eb;
            border-radius: 2px;
            overflow: hidden;
        }
        
        .topic-progress-bar-inner {
            height: 100%;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 2px;
        }
        
        .topic-progress-text {
            font-size: 0.625rem;
            color: var(--text-light);
            min-width: 32px;
            text-align: right;
        }
        
        /* 学习日历 */
        .study-calendar {
            text-align: center;
            padding: 0.5rem;
        }
        
        .calendar-date {
            margin-bottom: 1rem;
        }
        
        .calendar-day {
            display: block;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        
        .calendar-month {
            display: block;
            font-size: 0.875rem;
            color: var(--text-light);
            margin-top: 0.25rem;
        }
        
        .calendar-week {
            display: block;
            font-size: 0.8125rem;
            color: var(--text);
            font-weight: 500;
        }
        
        .calendar-tips {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem;
            background: var(--primary-light);
            border-radius: 8px;
            margin-bottom: 0.75rem;
        }
        
        .tips-icon {
            font-size: 1.5rem;
        }
        
        .tips-text {
            text-align: left;
            flex: 1;
        }
        
        .tips-title {
            font-size: 0.8125rem;
            color: var(--primary);
            font-weight: 600;
        }
        
        .tips-desc {
            font-size: 0.6875rem;
            color: var(--text-light);
            margin-top: 0.125rem;
        }
        
        .calendar-streak {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: var(--text);
        }
        
        .streak-icon {
            font-size: 1.125rem;
        }
        
        .streak-text strong {
            color: var(--primary);
        }
        
        /* 最近更新 */
        .update-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        
        .update-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.625rem;
            border-radius: 8px;
            background: #f9fafb;
            transition: all 0.2s;
        }
        
        .update-item:hover {
            background: var(--primary-light);
        }
        
        .update-icon {
            font-size: 1.125rem;
            flex-shrink: 0;
        }
        
        .update-content {
            flex: 1;
            min-width: 0;
        }
        
        .update-title {
            font-size: 0.8125rem;
            color: var(--text);
            margin-bottom: 0.1875rem;
        }
        
        .update-time {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        

        
        /* 热门话题 */
        .topic-list {
            padding: 0.75rem 0;
        }
        
        .topic-item {
            padding: 0.625rem 0.75rem;
            border-radius: 8px;
            transition: all 0.2s;
            cursor: pointer;
            margin-bottom: 0.5rem;
        }
        
        .topic-item:hover {
            background-color: #f3f4f6;
        }
        
        .topic-tag {
            display: inline-block;
            padding: 0.125rem 0.5rem;
            border-radius: 4px;
            font-size: 0.625rem;
            font-weight: 600;
        }

        /* 课程体系 - 简洁设计 */
        .course-system {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .course-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1.25rem;
            transition: all 0.2s ease;
            position: relative;
        }

        .course-item:hover {
            background: #f9fafb;
            border-color: var(--primary-light);
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            transform: translateY(-2px);
        }

        .course-header {
            display: flex;
            align-items: center;
            margin-bottom: 0.75rem;
        }

        .course-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 0.75rem;
            color: white;
            font-size: 1.25rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            transition: transform 0.2s ease;
        }

        .course-item:hover .course-icon {
            transform: scale(1.05);
        }

        .course-icon.blue {
            background: #3b82f6;
        }

        .course-icon.green {
            background: #10b981;
        }

        .course-icon.purple {
            background: #8b5cf6;
        }

        .course-info {
            flex: 1;
        }

        .course-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.25rem;
            transition: color 0.2s ease;
        }

        .course-item:hover .course-title {
            color: var(--primary);
        }

        .course-grade {
            font-size: 0.75rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .course-subjects {
            display: flex;
            flex-wrap: wrap;
            gap: 0.375rem;
            margin-bottom: 1rem;
        }

        .subject-tag {
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 500;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .subject-tag:hover {
            transform: translateY(-1px);
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .subject-tag.blue {
            background: #dbeafe;
            color: #1e40af;
            border-color: #93c5fd;
        }

        .subject-tag.green {
            background: #d1fae5;
            color: #065f46;
            border-color: #6ee7b7;
        }

        .subject-tag.yellow {
            background: #fef3c7;
            color: #92400e;
            border-color: #fcd34d;
        }

        .subject-tag.purple {
            background: #ede9fe;
            color: #5b21b6;
            border-color: #c4b5fd;
        }

        .subject-tag.red {
            background: #fee2e2;
            color: #991b1b;
            border-color: #fca5a5;
        }

        .course-btn {
            width: 100%;
            padding: 0.5rem;
            border: none;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            color: white;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .course-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }

        .course-btn.blue {
            background: #3b82f6;
        }

        .course-btn.green {
            background: #10b981;
        }

        .course-btn.purple {
            background: #8b5cf6;
        }
        
        .topic-title {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 0.375rem;
        }
        
        .topic-stats {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        
        /* 推荐阅读 */
        .recommend-list {
            padding: 0.75rem 0;
        }
        
        .recommend-item {
            padding: 0.625rem 0.75rem;
            border-radius: 8px;
            transition: all 0.2s;
            cursor: pointer;
            margin-bottom: 0.5rem;
        }
        
        .recommend-item:hover {
            background-color: #f3f4f6;
        }
        
        .recommend-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.25rem;
        }
        
        .recommend-author {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-bottom: 0.25rem;
        }
        
        .recommend-rating {
            font-size: 0.75rem;
            color: #f59e0b;
            font-weight: 600;
        }
        

        
        /* 推荐阅读 */
        .sidebar-card:nth-child(8) .recommend-item {
            padding: 0.625rem 0.75rem;
            border-radius: 8px;
            transition: all 0.2s;
            cursor: pointer;
            margin-bottom: 0.5rem;
            background: none;
        }
        
        .sidebar-card:nth-child(8) .recommend-item:hover {
            background-color: #f3f4f6;
        }
        

        
        /* 热搜榜 */
        .hot-search-list {
            list-style: none;
        }
        
        .hot-search-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.625rem 0;
            border-bottom: 1px solid var(--border);
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .hot-search-item:last-child {
            border-bottom: none;
        }
        
        .hot-search-item:hover .hot-search-title {
            color: var(--primary);
        }
        
        .hot-search-rank {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            background: #f1f3f4;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text-light);
            flex-shrink: 0;
        }
        
        .hot-search-rank.top {
            background: #fff;
            color: #fff;
        }
        
        .hot-search-content {
            flex: 1;
            min-width: 0;
        }
        
        .hot-search-title {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text);
            transition: color 0.2s;
        }
        
        .hot-search-tag {
            font-size: 0.6875rem;
            color: var(--text-light);
            margin-top: 0.125rem;
        }
        
        .hot-search-hot {
            font-size: 0.75rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        
        /* 点赞榜 */
        .like-list {
            list-style: none;
        }
        
        .like-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.625rem;
            border-radius: 8px;
            margin-bottom: 0.5rem;
            background: #f9fafb;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .like-item:hover {
            background: var(--primary-light);
        }
        
        .like-item:hover .like-title {
            color: var(--primary);
        }
        
        .like-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea, #764ba2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        
        .like-content {
            flex: 1;
            min-width: 0;
        }
        
        .like-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.1875rem;
            transition: color 0.2s;
        }
        
        .like-desc {
            font-size: 0.6875rem;
            color: var(--text-light);
        }
        
        .like-count {
            text-align: right;
            flex-shrink: 0;
        }
        
        .like-num {
            font-size: 0.8125rem;
            color: #64748b;
            font-weight: 500;
        }
        
        /* 热门榜单 views */
        .hot-views {
            font-size: 0.6875rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        

        
        /* ========== 移动端底部导航 ========== */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            padding-bottom: env(safe-area-inset-bottom);
        }
        
        .mobile-tabbar-inner {
            display: flex;
            justify-content: space-around;
            padding: 0.5rem 0;
        }
        
        .tabbar-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.1875rem;
            color: var(--text-light);
            font-size: 0.625rem;
            padding: 0.25rem 0.75rem;
        }
        
        .tabbar-item.active {
            color: var(--primary);
        }
        
        .tabbar-icon {
            font-size: 1.25rem;
        }
        
        /* ========== 响应式设计 ========== */
        @media (max-width: 768px) {
            /* 导航栏 */
            .nav-menu, .nav-actions { display: none; }
            .nav-container { padding: 0 1rem; height: 56px; }
            .logo { font-size: 1rem; }
            .logo-icon { width: 36px; height: 36px; }
            
            /* Hero 区域 */
            
            .hero-text h1 { font-size: 1.375rem; line-height: 1.4; }
            .hero-text p { font-size: 0.8125rem; }
            .hero-search { padding: 0.625rem; gap: 0.5rem; }
            .search-input { padding: 0.5625rem 0.625rem; font-size: 0.875rem; }
            .search-btn { padding: 0.5625rem 1rem; font-size: 0.8125rem; }
            
            /* 主容器 */
            .container { grid-template-columns: 1fr; padding: 0.75rem; gap: 1rem; }
            
            /* 生活百科 */
            .life-section { margin-bottom: 1rem; }
            .life-header { flex-direction: row; justify-content: space-between; margin-bottom: 0.75rem; }
            .life-title { font-size: 0.9375rem; }
            .life-more { font-size: 0.75rem; }
            .life-grid { grid-template-columns: 1fr; gap: 0.75rem; }
            .life-card { padding: 0.75rem; }
            .life-card-icon { width: 40px; height: 40px; font-size: 1.25rem; }
            .life-card-title { font-size: 0.9375rem; }
            .life-card-summary { font-size: 0.75rem; }
            .life-card-label { font-size: 0.6875rem; }
            .life-card-list li { font-size: 0.75rem; }
            .life-card-tips { padding: 0.5rem; }
            .life-card-tips-title { font-size: 0.6875rem; }
            .life-card-tips-text { font-size: 0.6875rem; }
            
            /* 诗人模块 */
            .poet-section { margin-bottom: 1rem; }
            .section-title { font-size: 0.9375rem; margin-bottom: 0.75rem; }
            .poet-grid { grid-template-columns: repeat(2, 1fr); gap: 0.625rem; }
            .poet-card { padding: 0.625rem; }
            .poet-avatar { width: 48px; height: 48px; font-size: 1.25rem; }
            .poet-name { font-size: 0.8125rem; }
            .poet-title-tag { font-size: 0.625rem; padding: 0.125rem 0.375rem; }
            .poet-dynasty { font-size: 0.625rem; }
            .poet-intro { font-size: 0.625rem; line-height: 1.5; }
            .poet-works-list { gap: 0.25rem; }
            .poet-work-item { font-size: 0.5625rem; padding: 0.125rem 0.25rem; }
            
            /* 古诗模块 - 已在上面定义 */
            
            /* 知识点移动端 */
            .knowledge-section { margin-bottom: 1rem; }
            .knowledge-list { gap: 0.75rem; }
            
            /* 最新文章移动端 */
            .article-section { margin-bottom: 1rem; }
            .article-list { gap: 0.75rem; }
            .article-card { padding: 0.75rem; }
            .article-card.has-img { padding: 0.75rem; gap: 0.75rem; }
            .article-card.has-img .article-image { width: 100px; height: 75px; }
            .article-title { font-size: 0.9375rem; }
            .article-desc { font-size: 0.8125rem; -webkit-line-clamp: 2; }
            .article-meta { font-size: 0.6875rem; }
            
            /* 侧边栏 */
        .sidebar { order: -1; margin-bottom: 1rem; }
        .sidebar-card { padding: 0.75rem; margin-bottom: 0.75rem; }
        .sidebar-title { font-size: 0.875rem; margin-bottom: 0.625rem; }
        .sidebar-list li { font-size: 0.75rem; padding: 0.375rem 0; }
        
        /* 课程体系移动端适配 */
        .course-system {
            gap: 1rem;
        }
        
        .course-item {
            padding: 1.25rem;
            border-radius: 12px;
        }
        
        .course-header {
            margin-bottom: 1rem;
        }
        
        .course-icon {
            width: 48px;
            height: 48px;
            font-size: 1.5rem;
            margin-right: 1rem;
        }
        
        .course-title {
            font-size: 1.125rem;
        }
        
        .course-subjects {
            gap: 0.5rem;
            margin-bottom: 1.25rem;
        }
        
        .subject-tag {
            padding: 0.375rem 0.875rem;
            font-size: 0.75rem;
        }
        
        .course-btn {
            padding: 0.625rem;
            font-size: 0.875rem;
        }
            

            
            /* 移动端底部导航 */
            .mobile-tabbar { display: block; }
            body { padding-bottom: 60px; }
        }
        
        /* 小屏幕手机优化 */
        @media (max-width: 480px) {
            .hero-text h1 { font-size: 1.25rem; }
            .container { padding: 0.5rem; }
            .life-card { padding: 0.625rem; }
            .poet-grid { grid-template-columns: 1fr; gap: 0.5rem; }
        }
        
        /* ========== 页脚 ========== */
        .footer {
            background: linear-gradient(135deg, #2d3436 0%, #1a1a1a 100%);
            color: #fff;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 3rem;
        }
        
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .footer-main {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 3rem;
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        
        .footer-brand {
            padding-right: 2rem;
        }
        
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }
        
        .footer-logo .logo-icon {
            font-size: 2.5rem;
        }
        
        .footer-logo .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
        }
        
        .footer-slogan {
            font-size: 1rem;
            font-weight: 500;
            margin-bottom: 0.5rem;
            color: rgba(255,255,255,0.9);
        }
        
        .footer-desc {
            font-size: 0.875rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.6;
        }
        
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        
        .footer-column h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: rgba(255,255,255,0.9);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column li {
            margin-bottom: 0.625rem;
        }
        
        .footer-column a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            font-size: 0.875rem;
            transition: color 0.2s;
        }
        
        .footer-column a:hover {
            color: var(--primary);
        }
        
        .footer-bottom {
            text-align: center;
        }
        
        .footer-copyright {
            margin-bottom: 0.75rem;
        }
        
        .footer-copyright p {
            font-size: 0.8125rem;
            color: rgba(255,255,255,0.4);
            margin-bottom: 0.5rem;
        }
        
        .footer-icp {
            font-size: 0.8125rem;
            color: rgba(255,255,255,0.4);
        }
        
        .footer-icp a {
            color: rgba(255,255,255,0.4);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .footer-icp a:hover {
            color: var(--primary);
        }
        
        @media (max-width: 768px) {
            .footer {
                display: none;
            }
        }