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

        :root {
            --primary: #00D9FF;
            --primary-dark: #00A8CC;
            --secondary: #FF006E;
            --secondary-dark: #CC0056;
            --accent: #8B5CF6;
            --accent-light: #A78BFA;
            --bg-main: #0A0E27;
            --bg-section: #0F1535;
            --bg-section-alt: #141B3C;
            --bg-card: #1A2250;
            --text-primary: #E8EAFF;
            --text-secondary: #A8B2D1;
            --text-muted: #6B7596;
            --border-color: #2A3159;
            --success: #10B981;
            --warning: #F59E0B;
        }

        html, body {
            width: 100%;
            height: 100%;
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* ============ 导航栏 ============ */
        .ef9dq1-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(10, 14, 39, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 1rem 2rem;
        }

        .ef9dq1-navbar-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
        }

        .ef9dq1-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            font-size: clamp(1.25rem, 3vw, 1.5rem);
            font-weight: 700;
            color: var(--text-primary);
            transition: all 0.3s ease;
        }

        .ef9dq1-logo img {
            height: 40px;
            width: auto;
        }

        .ef9dq1-logo:hover {
            color: var(--primary);
        }

        .ef9dq1-nav-menu {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex: 1;
        }

        .ef9dq1-nav-item {
            position: relative;
        }

        .ef9dq1-nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            transition: all 0.3s ease;
            display: inline-block;
            font-size: clamp(0.875rem, 1.5vw, 1rem);
        }

        .ef9dq1-nav-link:hover,
        .ef9dq1-nav-link.active {
            color: var(--primary);
            background: rgba(0, 217, 255, 0.1);
        }

        .ef9dq1-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* ============ 主容器 ============ */
        .ef9dq1-main {
            margin-top: 80px;
            min-height: calc(100vh - 80px);
            background-color: var(--bg-main);
        }

        .ef9dq1-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* ============ Hero区域 ============ */
        .ef9dq1-hero {
            background: linear-gradient(135deg, var(--bg-section) 0%, var(--bg-section-alt) 100%);
            padding: clamp(3rem, 8vw, 6rem) 2rem;
            margin-top: 0;
            border-bottom: 2px solid var(--border-color);
        }

        .ef9dq1-hero-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .ef9dq1-hero-text h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .ef9dq1-hero-text p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .ef9dq1-hero-cta {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .ef9dq1-btn {
            padding: 1rem 2rem;
            border-radius: 8px;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .ef9dq1-btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #000;
        }

        .ef9dq1-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
        }

        .ef9dq1-btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .ef9dq1-btn-secondary:hover {
            background: rgba(0, 217, 255, 0.1);
            transform: translateY(-3px);
        }

        .ef9dq1-hero-visual {
            background: rgba(0, 217, 255, 0.05);
            border: 2px solid var(--border-color);
            border-radius: 16px;
            padding: 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 300px;
        }

        .ef9dq1-hero-visual-content {
            text-align: center;
            font-size: 4rem;
        }

        /* ============ 社区统计 ============ */
        .ef9dq1-stats-section {
            background-color: var(--bg-section);
            padding: 3rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-stats-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }

        .ef9dq1-stat-card {
            background-color: var(--bg-card);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: all 0.3s ease;
        }

        .ef9dq1-stat-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 217, 255, 0.1);
            transform: translateY(-4px);
        }

        .ef9dq1-stat-number {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        .ef9dq1-stat-label {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        /* ============ 社区热点 ============ */
        .ef9dq1-trending-section {
            background-color: var(--bg-main);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-section-title {
            font-size: clamp(2rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .ef9dq1-section-subtitle {
            color: var(--text-secondary);
            margin-bottom: 3rem;
            font-size: 1.1rem;
        }

        .ef9dq1-trending-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .ef9dq1-trending-card {
            background: linear-gradient(135deg, var(--bg-section) 0%, var(--bg-section-alt) 100%);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .ef9dq1-trending-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .ef9dq1-trending-card:hover::before {
            transform: scaleX(1);
        }

        .ef9dq1-trending-card:hover {
            border-color: var(--primary);
            box-shadow: 0 12px 36px rgba(0, 217, 255, 0.15);
            transform: translateY(-6px);
        }

        .ef9dq1-trending-badge {
            display: inline-block;
            background: rgba(0, 217, 255, 0.2);
            color: var(--primary);
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }

        .ef9dq1-trending-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }

        .ef9dq1-trending-desc {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.6;
            font-size: 0.95rem;
        }

        .ef9dq1-trending-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ============ 讨论版块 ============ */
        .ef9dq1-forum-section {
            background-color: var(--bg-section);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-forum-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .ef9dq1-forum-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .ef9dq1-forum-category {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .ef9dq1-forum-category:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 217, 255, 0.1);
            transform: translateY(-4px);
        }

        .ef9dq1-forum-icon {
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .ef9dq1-forum-name {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .ef9dq1-forum-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 1rem;
        }

        .ef9dq1-forum-stats {
            display: flex;
            gap: 1.5rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .ef9dq1-forum-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .ef9dq1-forum-stat-value {
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
        }

        /* ============ 最新话题 ============ */
        .ef9dq1-topics-section {
            background-color: var(--bg-main);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-topics-list {
            max-width: 1400px;
            margin: 0 auto;
        }

        .ef9dq1-topic-item {
            background-color: var(--bg-section);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 1rem;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 2rem;
            align-items: center;
            transition: all 0.3s ease;
        }

        .ef9dq1-topic-item:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(0, 217, 255, 0.08);
            transform: translateX(4px);
        }

        .ef9dq1-topic-content {
            display: flex;
            gap: 1rem;
        }

        .ef9dq1-topic-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-weight: 700;
            flex-shrink: 0;
        }

        .ef9dq1-topic-main {
            flex: 1;
            min-width: 0;
        }

        .ef9dq1-topic-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            word-break: break-word;
        }

        .ef9dq1-topic-title:hover {
            color: var(--primary);
        }

        .ef9dq1-topic-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .ef9dq1-topic-tag {
            display: inline-block;
            background: rgba(139, 92, 246, 0.15);
            color: var(--accent-light);
            padding: 0.25rem 0.6rem;
            border-radius: 4px;
            font-size: 0.75rem;
        }

        .ef9dq1-topic-stats {
            display: flex;
            gap: 2rem;
            text-align: center;
        }

        .ef9dq1-topic-stat {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .ef9dq1-topic-stat-value {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
        }

        .ef9dq1-topic-stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* ============ 成员社区 ============ */
        .ef9dq1-members-section {
            background-color: var(--bg-section);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-members-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .ef9dq1-members-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .ef9dq1-member-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .ef9dq1-member-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 217, 255, 0.1);
            transform: translateY(-6px);
        }

        .ef9dq1-member-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 2rem;
            font-weight: 700;
        }

        .ef9dq1-member-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }

        .ef9dq1-member-role {
            font-size: 0.85rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .ef9dq1-member-badge {
            display: inline-block;
            background: rgba(255, 0, 110, 0.15);
            color: var(--secondary);
            padding: 0.3rem 0.6rem;
            border-radius: 4px;
            font-size: 0.7rem;
            margin-bottom: 0.5rem;
        }

        /* ============ 事件日历 ============ */
        .ef9dq1-events-section {
            background-color: var(--bg-main);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-events-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .ef9dq1-events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .ef9dq1-event-card {
            background: linear-gradient(135deg, var(--bg-section) 0%, var(--bg-section-alt) 100%);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .ef9dq1-event-card:hover {
            border-color: var(--primary);
            box-shadow: 0 12px 36px rgba(0, 217, 255, 0.15);
            transform: translateY(-6px);
        }

        .ef9dq1-event-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #000;
            padding: 1.5rem;
            font-weight: 700;
        }

        .ef9dq1-event-date {
            font-size: 1.5rem;
            margin-bottom: 0.25rem;
        }

        .ef9dq1-event-month {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .ef9dq1-event-body {
            padding: 1.5rem;
        }

        .ef9dq1-event-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .ef9dq1-event-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 1rem;
        }

        .ef9dq1-event-footer {
            padding: 0 1.5rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
        }

        .ef9dq1-event-type {
            display: inline-block;
            background: rgba(139, 92, 246, 0.2);
            color: var(--accent-light);
            padding: 0.3rem 0.8rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .ef9dq1-event-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .ef9dq1-event-link:hover {
            color: var(--accent-light);
        }

        /* ============ 资源库 ============ */
        .ef9dq1-resources-section {
            background-color: var(--bg-section);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-resources-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .ef9dq1-resources-tabs {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
            flex-wrap: wrap;
        }

        .ef9dq1-tab-btn {
            background: none;
            border: none;
            color: var(--text-secondary);
            padding: 1rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border-bottom: 2px solid transparent;
            margin-bottom: -1px;
        }

        .ef9dq1-tab-btn:hover,
        .ef9dq1-tab-btn.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .ef9dq1-resources-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 2rem;
        }

        .ef9dq1-resource-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            transition: all 0.3s ease;
        }

        .ef9dq1-resource-item:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 217, 255, 0.1);
            transform: translateY(-4px);
        }

        .ef9dq1-resource-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .ef9dq1-resource-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .ef9dq1-resource-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .ef9dq1-resource-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }

        .ef9dq1-resource-count {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .ef9dq1-resource-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .ef9dq1-resource-link:hover {
            color: var(--accent-light);
        }

        /* ============ CTA区域 ============ */
        .ef9dq1-cta-section {
            background: linear-gradient(135deg, var(--bg-section) 0%, var(--bg-section-alt) 100%);
            padding: 4rem 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .ef9dq1-cta-container {
            max-width: 1400px;
            margin: 0 auto;
            text-align: center;
        }

        .ef9dq1-cta-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .ef9dq1-cta-text {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1.1rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 页脚 ============ */
        .ef9dq1-footer {
            background-color: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 3rem 2rem 1.5rem;
        }

        .ef9dq1-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .ef9dq1-footer-section {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .ef9dq1-footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .ef9dq1-footer-link {
            color: var(--text-secondary);
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .ef9dq1-footer-link:hover {
            color: var(--primary);
        }

        .ef9dq1-footer-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .ef9dq1-footer-brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .ef9dq1-footer-divider {
            height: 1px;
            background: var(--border-color);
            margin: 2rem 0;
        }

        .ef9dq1-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 1rem;
        }

        .ef9dq1-footer-copy {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .ef9dq1-footer-social {
            display: flex;
            gap: 1rem;
        }

        .ef9dq1-social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(0, 217, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 1.1rem;
        }

        .ef9dq1-social-link:hover {
            background: rgba(0, 217, 255, 0.2);
            transform: translateY(-3px);
        }

        /* ============ 响应式设计 ============ */
        @media (max-width: 1024px) {
            .ef9dq1-hero-content {
                grid-template-columns: 1fr;
            }

            .ef9dq1-hero-visual {
                min-height: 250px;
            }

            .ef9dq1-navbar-content {
                padding: 1rem;
            }
        }

        @media (max-width: 768px) {
            .ef9dq1-navbar {
                padding: 0.75rem 1rem;
            }

            .ef9dq1-navbar-content {
                gap: 1rem;
            }

            .ef9dq1-nav-menu {
                gap: 0.5rem;
            }

            .ef9dq1-nav-link {
                padding: 0.5rem;
                font-size: 0.9rem;
            }

            .ef9dq1-main {
                margin-top: 70px;
            }

            .ef9dq1-hero {
                padding: 2rem 1rem;
            }

            .ef9dq1-container {
                padding: 0 1rem;
            }

            .ef9dq1-trending-grid {
                grid-template-columns: 1fr;
            }

            .ef9dq1-forum-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }

            .ef9dq1-members-grid {
                grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
                gap: 1rem;
            }

            .ef9dq1-topic-item {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .ef9dq1-topic-stats {
                justify-content: flex-start;
                gap: 1.5rem;
            }

            .ef9dq1-footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .ef9dq1-footer-social {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .ef9dq1-navbar-content {
                padding: 0.5rem;
            }

            .ef9dq1-nav-menu {
                gap: 0.25rem;
            }

            .ef9dq1-nav-link {
                padding: 0.4rem 0.6rem;
                font-size: 0.8rem;
            }

            .ef9dq1-hero {
                padding: 1.5rem 1rem;
            }

            .ef9dq1-hero-text h1 {
                font-size: 1.75rem;
            }

            .ef9dq1-hero-cta {
                flex-direction: column;
            }

            .ef9dq1-btn {
                width: 100%;
                justify-content: center;
            }

            .ef9dq1-section-title {
                font-size: 1.5rem;
            }

            .ef9dq1-trending-grid {
                grid-template-columns: 1fr;
            }

            .ef9dq1-forum-grid {
                grid-template-columns: 1fr;
            }

            .ef9dq1-events-grid {
                grid-template-columns: 1fr;
            }

            .ef9dq1-members-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
            }

            .ef9dq1-member-avatar {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }

            .ef9dq1-stats-grid {
                grid-template-columns: 1fr 1fr;
            }

            .ef9dq1-resources-tabs {
                flex-direction: column;
            }

            .ef9dq1-tab-btn {
                border-bottom: none;
                border-left: 2px solid transparent;
                padding-left: 1rem;
                justify-content: flex-start;
            }

            .ef9dq1-tab-btn.active {
                border-left-color: var(--primary);
                border-bottom: none;
            }
        }

        /* ============ 动画与交互 ============ */
        @keyframes fadeInUp {
            from {
                opacity: 1;
                transform: translateY(0);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideInLeft {
            from {
                opacity: 1;
                transform: translateX(0);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .ef9dq1-trending-card {
            animation: fadeInUp 0.6s ease;
        }

        .ef9dq1-topic-item {
            animation: slideInLeft 0.6s ease;
        }

        /* ============ 辅助类 ============ */
        .ef9dq1-hidden-mobile {
            display: block;
        }

        @media (max-width: 768px) {
            .ef9dq1-hidden-mobile {
                display: none;
            }
        }

        .ef9dq1-visible-mobile {
            display: none;
        }

        @media (max-width: 768px) {
            .ef9dq1-visible-mobile {
                display: block;
            }
        }