* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        :root {
            --primary: #4A00E0;
            --secondary: #8E2DE2;
            --accent: #FFD166;
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --text: #333333;
            --gray: #6C757D;
            --success: #28A745;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --radius: 12px;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(to right, #FFD166, #FF9A3C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            position: relative;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
            border-top: 3px solid var(--accent);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav .nav-link {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(255,255,255,0.9);
            margin-bottom: 2rem;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2rem;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-title {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--gray);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transition: transform 0.5s ease;
        }
        .hero-image:hover {
            transform: scale(1.01);
        }
        .content-section {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 2.5rem;
        }
        .section-title {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.75rem;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .content-section p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255,209,102,0.3) 0%, rgba(255,209,102,0) 100%);
            padding: 1.5rem;
            border-left: 5px solid var(--accent);
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip-box {
            background: #E3F2FD;
            border-radius: var(--radius);
            padding: 1.5rem;
            margin: 2rem 0;
            border-left: 5px solid #2196F3;
        }
        .tip-title {
            color: #0D47A1;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-card {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            text-align: center;
            transition: all 0.3s ease;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .form-container {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .form-title {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            border-color: var(--primary);
            outline: none;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(142, 45, 226, 0.4);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        .footer-links {
            background: var(--dark);
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            margin: 0.75rem 0;
            padding: 1rem 1.5rem;
            border-radius: var(--radius);
            border-left: 3px solid var(--accent);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateX(10px);
        }
        .web-link a {
            color: #fff;
            font-weight: 500;
            display: block;
        }
        .site-footer {
            background: #111;
            color: #aaa;
            padding: 3rem 0 1.5rem;
            text-align: center;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }
        .copyright {
            font-size: 0.9rem;
            border-top: 1px solid #333;
            padding-top: 1.5rem;
            width: 100%;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .emoji { font-size: 1.2em; }
        .keyword { color: var(--primary); font-weight: 700; }