:root {
            --primary-color: #7c9885;
            --secondary-color: #a8b5a0;
            --accent-color: #9ca3af;
            --text-dark: #4b5563;
            --text-light: #6b7280;
            --bg-light: #f5f4f2;
            --bg-card: #ffffff;
            --border-color: #e5e7eb;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }

        .navbar-brand img {
            height: 40px;
            margin-right: 10px;
        }

        /* 英雄区域 */
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 180px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><circle cx="200" cy="200" r="100" fill="rgba(255,255,255,0.1)"/><circle cx="800" cy="300" r="80" fill="rgba(255,255,255,0.08)"/><circle cx="600" cy="700" r="120" fill="rgba(255,255,255,0.06)"/></svg>');
            background-size: cover;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 600;
            margin-bottom: 1rem;
            animation: fadeInUp 1s ease;
        }

        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            animation: fadeInUp 1s ease 0.2s both;
        }

        .hero-buttons {
            animation: fadeInUp 1s ease 0.4s both;
        }

        .btn-primary-custom {
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary-color);
            border: none;
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 500;
            border-radius: 25px;
            transition: all 0.3s ease;
            margin: 10px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .btn-primary-custom:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            background: white;
        }

        .btn-outline-custom {
            background: transparent;
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.8);
            padding: 11px 30px;
            font-size: 1rem;
            font-weight: 500;
            border-radius: 25px;
            transition: all 0.3s ease;
            margin: 10px;
        }

        .btn-outline-custom:hover {
            background: white;
            color: var(--primary-color);
            transform: translateY(-2px);
        }

        /* 功能卡片 */
        .features {
            padding: 80px 0;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
            border: 1px solid var(--border-color);
        }

        .feature-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2rem;
            color: white;
        }

        /* 时间线 */
        .timeline {
            padding: 50px 0;
            background: var(--bg-card);
        }

        .timeline-item {
            display: flex;
            margin-bottom: 25px;
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 45px;
            top: 35px;
            bottom: -25px;
            width: 1px;
            background: var(--primary-color);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-date {
            background: var(--primary-color);
            color: white;
            padding: 6px 12px;
            border-radius: 16px;
            font-weight: 500;
            font-size: 0.85rem;
            min-width: 90px;
            text-align: center;
            margin-right: 20px;
            height: fit-content;
        }

        .timeline-content {
            flex: 1;
            background: var(--bg-card);
            padding: 12px 16px;
            border-radius: 8px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
            border-left: 2px solid var(--primary-color);
        }

        .timeline-content h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .timeline-content p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* 服务器状态 */
        .server-status {
            padding: 80px 0;
            background: var(--bg-light);
        }

        .status-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 32px;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }

        .status-indicator {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #10b981;
            display: inline-block;
            margin-right: 10px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }

        /* 关于部分 */
        .about {
            padding: 80px 0;
            background: var(--bg-card);
        }

        .project-logo {
            width: 120px;
            height: 120px;
            margin-bottom: 30px;
            filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
        }

        /* 动画 - 已禁用滑动加载 */
        .fade-in {
            opacity: 1;
            transform: translateY(0);
        }

        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .spin {
            animation: spin 1s linear infinite;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .feature-card {
                padding: 20px 15px;
            }
            
            .timeline {
                padding: 30px 0;
            }
            
            .timeline-container {
                padding: 0 15px;
            }
            
            .timeline-item {
                flex-direction: column;
                margin-left: 0;
                margin-bottom: 20px;
                padding-left: 50px;
            }
            
            .timeline-date {
                margin-bottom: 8px;
                margin-right: 0;
                align-self: flex-start;
                font-size: 0.75rem;
                padding: 4px 8px;
                min-width: 70px;
                position: relative;
            }
            
            .timeline-content {
                padding: 12px 15px;
                margin-left: 0;
            }
            
            .timeline-content h4 {
                font-size: 1rem;
                margin-bottom: 6px;
            }
            
            .timeline-content p {
                font-size: 0.85rem;
            }
            
            .timeline-item::before {
                left: 20px;
                top: 35px;
                bottom: -20px;
                width: 2px;
            }
            
            .btn-lg {
                padding: 10px 25px;
                font-size: 1rem;
            }
            
            .status-card {
                padding: 25px 20px;
                margin: 0 15px;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 80px 0 60px;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .timeline {
                padding: 20px 0;
            }
            
            .timeline-container {
                padding: 0 10px;
            }
            
            .timeline-item {
                margin-bottom: 15px;
                padding-left: 35px;
            }
            
            .timeline-date {
                font-size: 0.7rem;
                padding: 2px 6px;
                min-width: 60px;
            }
            
            .timeline-content {
                padding: 8px 10px;
            }
            
            .timeline-content h4 {
                font-size: 0.9rem;
                margin-bottom: 4px;
            }
            
            .timeline-content p {
                font-size: 0.8rem;
                line-height: 1.4;
            }
            
            .timeline-item::before {
                left: 15px;
                top: 25px;
                bottom: -15px;
                width: 1px;
            }
            
            .status-card {
                padding: 20px 15px;
                margin: 0 5px;
            }
        }

        @media (max-width: 400px) {
            .timeline-item {
                padding-left: 25px;
            }
            
            .timeline-date {
                font-size: 0.65rem;
                padding: 2px 5px;
                min-width: 55px;
            }
            
            .timeline-content {
                padding: 6px 8px;
            }
            
            .timeline-content h4 {
                font-size: 0.85rem;
            }
            
            .timeline-content p {
                font-size: 0.75rem;
            }
            
            .timeline-item::before {
                left: 10px;
            }
        }

        /* 提示框样式 */
        .notification {
            position: fixed;
            top: 20px;
            left: 20px;
            z-index: 9999;
            padding: 15px 20px;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            font-size: 14px;
            font-weight: 500;
            max-width: 300px;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }

        .notification.show {
            transform: translateX(0);
        }

        .notification.success {
            background: #10b981;
            color: white;
            border-left: 4px solid #059669;
        }

        .notification.error {
            background: #ef4444;
            color: white;
            border-left: 4px solid #dc2626;
        }

        .notification.warning {
            background: #f59e0b;
            color: white;
            border-left: 4px solid #d97706;
        }

        /* 底部 */
        .footer {
            background: var(--text-dark);
            color: white;
            padding: 40px 0;
            text-align: center;
        }

        .nav-pills .nav-link {
            color: var(--text-light);
            border-radius: 25px;
            margin: 0 5px;
            transition: all 0.3s ease;
        }

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

        .nav-pills .nav-link:hover {
            background: var(--bg-light);
            color: var(--primary-color);
        }