* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #fa4454;
            --primary-dark: #d63a48;
            --secondary: #0f1923;
            --accent: #ff4655;
            --light-bg: #ece8e1;
            --dark-text: #111111;
            --light-text: #f0f0f0;
            --gray-border: #383838;
            --section-padding: clamp(2rem, 5vw, 4rem);
            --content-width: min(1200px, 95%);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f9f9f9;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: var(--content-width);
            margin: 0 auto;
            padding: 0 1rem;
        }
        .section-py {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
        }
        .text-center { text-align: center; }
        .bold { font-weight: 800; }
        .highlight {
            color: var(--primary);
            font-weight: 700;
        }
        .btn {
            display: inline-block;
            padding: 0.85rem 2rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 4px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(250, 68, 84, 0.2);
        }
        .site-header {
            background-color: var(--secondary);
            color: var(--light-text);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: -1px;
            background: linear-gradient(to right, #ff4655, #9a4dff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--light-text);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after,
        .main-nav a:focus::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--dark-text);
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--primary);
        }
        .hero {
            background: linear-gradient(rgba(15, 25, 35, 0.9), rgba(15, 25, 35, 0.95)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: var(--light-text);
            padding: 4rem 0;
            text-align: center;
        }
        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .content-section {
            background-color: white;
            margin: 2rem auto;
            border-radius: 10px;
            padding: 3rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .content-section h2 {
            color: var(--secondary);
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary);
        }
        .content-section h3 {
            color: var(--primary-dark);
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
        }
        .content-section h4 {
            color: #333;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.75rem;
        }
        .content-section p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .content-section ul, .content-section ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .featured-image {
            width: 100%;
            max-width: 900px;
            margin: 2.5rem auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.75rem;
            color: #666;
            background-color: #f5f5f5;
        }
        .interactive-module {
            background: linear-gradient(145deg, #f0f0f0, #ffffff);
            border-left: 5px solid var(--primary);
            padding: 2rem;
            margin: 3rem 0;
            border-radius: 0 8px 8px 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .module-title i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(250, 68, 84, 0.1);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 1rem 0;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffcc00;
        }
        .related-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .link-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            border: 1px solid #eee;
        }
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: var(--primary);
        }
        .link-card a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
        }
        .link-card p {
            margin-top: 0.75rem;
            color: #666;
            font-size: 0.95rem;
        }
        .site-footer {
            background-color: var(--secondary);
            color: var(--light-text);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            color: var(--accent);
        }
        friend-link {
            display: block;
            margin: 0.8rem 0;
        }
        friend-link a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--gray-border);
            color: #aaa;
            font-size: 0.9rem;
        }
        .update-time {
            color: var(--accent);
            font-weight: 600;
            margin-top: 0.5rem;
        }
        @media (max-width: 992px) {
            .main-nav ul {
                gap: 1.5rem;
            }
            .content-section {
                padding: 2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--secondary);
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
                z-index: 999;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
            }
            .header-container {
                padding: 0.75rem 0;
            }
            .hero {
                padding: 3rem 0;
            }
            .content-section {
                padding: 1.5rem;
                margin: 1rem auto;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }
            .content-section h2 {
                font-size: 1.8rem;
            }
            .content-section h3 {
                font-size: 1.5rem;
            }
            .interactive-module {
                padding: 1.5rem;
            }
        }