:root {
            --primary-purple: #6a11cb;
            --secondary-gold: #ffd700;
            --accent-diamond: #b9f2ff;
            --dark-bg: #0f0b1f;
            --light-text: #f5f5f7;
            --gray-border: #33334d;
            --highlight-red: #ff4757;
            --section-padding: clamp(2rem, 5vw, 4rem);
            --container-width: min(1200px, 95%);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--dark-bg);
            color: var(--light-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-purple) 0%, #2575fc 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(106, 17, 203, 0.4);
        }
        .header-container {
            max-width: var(--container-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 1.5rem;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--secondary-gold);
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: white;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 15px var(--accent-diamond);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            max-width: var(--container-width);
            margin: 1.5rem auto;
            padding: 0 1.5rem;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: var(--accent-diamond);
            text-decoration: none;
        }
        .main-container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem 3rem;
        }
        .hero {
            text-align: center;
            padding: var(--section-padding) 1rem;
            background: radial-gradient(circle at center, #1a1338 0%, var(--dark-bg) 70%);
            border-bottom: 2px solid var(--gray-border);
            margin-bottom: 2rem;
        }
        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            background: linear-gradient(to right, var(--secondary-gold), var(--accent-diamond));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #ccc;
        }
        .search-container {
            max-width: 600px;
            margin: 3rem auto;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            border: 1px solid var(--gray-border);
        }
        .search-form {
            display: flex;
            gap: 0;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: 10px 0 0 10px;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1rem;
        }
        .search-btn {
            padding: 1rem 2rem;
            background: linear-gradient(to right, var(--primary-purple), #2575fc);
            color: white;
            border: none;
            border-radius: 0 10px 10px 0;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: linear-gradient(to right, #2575fc, var(--primary-purple));
            box-shadow: 0 0 15px rgba(37, 117, 252, 0.6);
        }
        article section {
            margin-bottom: var(--section-padding);
            padding: 2.5rem;
            background: rgba(30, 25, 60, 0.6);
            border-radius: 20px;
            border-left: 5px solid var(--primary-purple);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        article section:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(106, 17, 203, 0.3);
        }
        h2 {
            font-size: 2.5rem;
            color: var(--secondary-gold);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--gray-border);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-diamond);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #ffa;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
            padding: 1.5rem;
            border-left: 4px solid var(--secondary-gold);
            margin: 2rem 0;
            font-style: italic;
            font-size: 1.2rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 15px;
            text-align: center;
            border: 1px solid var(--gray-border);
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            background: rgba(106, 17, 203, 0.2);
            border-color: var(--primary-purple);
            transform: scale(1.03);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--secondary-gold);
            margin-bottom: 1rem;
        }
        .stat-card h4 {
            margin-top: 0;
            color: var(--accent-diamond);
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 15px;
            margin: 2rem auto;
            display: block;
            border: 3px solid var(--secondary-gold);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .interactive-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .btn {
            padding: 0.8rem 1.8rem;
            background: linear-gradient(135deg, var(--primary-purple), #2575fc);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(106, 17, 203, 0.4);
            background: linear-gradient(135deg, #2575fc, var(--primary-purple));
        }
        .user-feedback {
            background: rgba(15, 11, 31, 0.8);
            padding: 3rem;
            border-radius: 20px;
            margin-top: 3rem;
            border: 1px solid var(--gray-border);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            gap: 0.3rem;
        }
        .stars i {
            color: #555;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i.active,
        .stars i:hover {
            color: var(--secondary-gold);
        }
        .comment-form,
        .rating-form {
            display: grid;
            gap: 1.2rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--accent-diamond);
        }
        .form-control {
            padding: 1rem;
            border-radius: 10px;
            border: 1px solid var(--gray-border);
            background: rgba(255, 255, 255, 0.05);
            color: white;
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            padding: 1rem 2rem;
            background: linear-gradient(to right, #00b09b, #96c93d);
            color: white;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            justify-self: start;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #96c93d, #00b09b);
            box-shadow: 0 0 20px rgba(150, 201, 61, 0.5);
        }
        .site-footer {
            background: #0a0818;
            padding: var(--section-padding) 0 2rem;
            border-top: 2px solid var(--primary-purple);
            margin-top: 4rem;
        }
        .footer-container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .footer-col h4 {
            color: var(--secondary-gold);
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-col a:hover {
            color: var(--accent-diamond);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.03);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            border-left: 4px solid var(--primary-purple);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--gray-border);
            color: #888;
            font-size: 0.95rem;
        }
        .update-time {
            color: var(--highlight-red);
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .main-nav ul {
                gap: 1rem;
            }
            .main-nav a {
                padding: 0.5rem 0.8rem;
                font-size: 1rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark-bg);
                padding: 2rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.4s ease;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
                align-items: center;
            }
            .header-container {
                padding: 0 1rem;
            }
            article section {
                padding: 1.5rem;
            }
            .user-feedback {
                padding: 2rem 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input,
            .search-btn {
                width: 100%;
                border-radius: 10px;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
        }