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

        :root {
            --primary: #3fae35;
            --primary-dark: #225f1c;
            --secondary: #dbf3dd;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --dark: #1f2937;
            --light: #f3f4f6;
            --white: #ffffff;
            --border: #e5e7eb;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background: linear-gradient(135deg, #e2ffeb 0%, #e9fff2 100%);
            min-height: 100vh;
        }

        /* Navigation */
        nav {
            background: var(--secondary);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            padding: 0.5rem 1rem;
            border-radius: 8px;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--light);
        }

        .nav-links a.active {
            color: var(--white);
            background: var(--primary);
        }

        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
        }

        /* Sections */
        section {
            display: none;
            animation: fadeIn 0.5s;
        }

        section.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Cards */
        .card {
            background: var(--white);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .card-title {
            font-size: 1.75rem;
            margin-bottom: 1rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .card-content {
            color: var(--dark);
            line-height: 1.8;
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--white);
            border-radius: 16px;
            margin-bottom: 2rem;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            background: var(--primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.25rem;
            color: #6b7280;
            margin-bottom: 2rem;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Buttons */
        .btn {
            padding: 0.75rem 2rem;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        .btn-secondary {
            background: var(--light);
            color: var(--dark);
        }

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

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

        .btn-success:hover {
            background: #059669;
        }

        /* Forms */
        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
            font-family: inherit;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        /* Tutorial Steps */
        .tutorial-steps {
            display: grid;
            gap: 2rem;
        }

        .step {
            background: var(--white);
            border-radius: 12px;
            padding: 2rem;
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
            box-shadow: var(--shadow);
        }

        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            flex-shrink: 0;
        }

        .step-content {
            flex: 1;
            min-width: 0; 
        }
        

        .step-content h3 {
            margin-bottom: 0.5rem;
            color: var(--primary);
        }
        

        /* Facility Items */
        .facility-item {
            background: var(--white);
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1rem;
            box-shadow: var(--shadow);
        }

        .facility-header {
            display: flex;
            justify-content: space-between;
            align-items: start;
            margin-bottom: 1rem;
        }

        .facility-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark);
        }

        .facility-status {
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
        }

        .status-working {
            background: #d1fae5;
            color: #065f46;
        }

        .status-broken {
            background: #fee2e2;
            color: #991b1b;
        }

        .facility-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-bottom: 1rem;
            padding: 1rem;
            background: var(--light);
            border-radius: 8px;
        }

        .info-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }

        .comment-section {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 2px solid var(--border);
        }

        .comment {
            background: var(--light);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 0.75rem;
        }

        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }

        .comment-author {
            font-weight: 600;
            color: var(--primary);
        }

        .comment-date {
            font-size: 0.875rem;
            color: #6b7280;
        }

        /* Forum */
        .forum-post {
            background: var(--white);
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1rem;
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: transform 0.3s;
        }

        .forum-post:hover {
            transform: translateX(5px);
        }

        .post-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .post-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark);
        }

        .post-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.875rem;
            color: #6b7280;
        }

        .post-stats {
            display: flex;
            gap: 1.5rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border);
        }

        .stat {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            color: #6b7280;
            font-size: 0.875rem;
        }

        /* Filter Buttons */
        .filter-buttons {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 0.5rem 1rem;
            border: 2px solid var(--border);
            background: var(--white);
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 500;
        }

        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

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

        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .stat-card {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        /* Search */
        .search-box {
            position: relative;
            margin-bottom: 2rem;
        }

        .search-box input {
            width: 100%;
            padding: 1rem 1rem 1rem 3rem;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 1rem;
        }

        .search-box::before {
            content: "🔍";
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.25rem;
        }

        .footer-banner {
            background: linear-gradient(45deg, #0a670b, #49cd7c);
            color: white;
            height: 120px;
            padding: 20px;
            text-align: left;
            margin-top: 50px;
        }

        .footer-text {
            color: rgba(255, 255, 255, 0.732);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 1rem;
                box-shadow: var(--shadow);
            }

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

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

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .step {
                flex-direction: column;
            }

            .facility-header {
                flex-direction: column;
                gap: 0.5rem;
            }
        }

        /* Badges */
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            margin: 0.25rem;
        }

        .badge-elevator { background: #fef3c7; color: #92400e; }
        .badge-ramp { background: #dbeafe; color: #1e40af; }
        .badge-stairs { background: #f3e8ff; color: #6b21a8; }
        .badge-lift { background: #fce7f3; color: #9f1239; }
        .badge-road { background: #fce7f3; color: #1b9f12; }
        .badge-restaurant { background: #fce7f3; color: #989f12; }
        .badge-others { background: #fce7f3; color: #9a129f; }

        /* Loading Spinner */
        .spinner {
            border: 4px solid var(--light);
            border-top: 4px solid var(--primary);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 2rem auto;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Success Message */
        .success-message {
            background: #d1fae5;
            color: #065f46;
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            display: none;
        }

        .success-message.show {
            display: block;
            animation: slideDown 0.3s;
        }

        /* Error Notification */
        .error-notification {
            position: fixed;
            top: 20px;
            right: 20px;
            background: #fee2e2;
            color: #991b1b;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            z-index: 10000;
            display: none;
            min-width: 300px;
            max-width: 500px;
        }

        .error-notification.show {
            display: block;
            animation: slideInRight 0.3s;
        }

        @keyframes slideDown {
            from { transform: translateY(-20px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }

        @keyframes slideInRight {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .feature-card {
            background: var(--white);
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            box-shadow: var(--shadow);
        }

        .feature-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .feature-card h3 {
            margin-bottom: 1rem;
            color: var(--primary);
        }