:root {
            --primary: #2a9d8f;
            --secondary: #264653;
            --accent: #e9c46a;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--secondary);
            color: var(--light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: #fff;
            transform: scale(1.02);
        }
        .my-logo i {
            font-size: 2rem;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 8px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--light);
            font-weight: 500;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        nav a:hover, nav a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--secondary);
                padding: 1rem;
                display: none;
                box-shadow: var(--shadow);
            }
            nav ul.show {
                display: flex;
            }
            nav li {
                margin: 10px 0;
            }
        }
        .hero {
            background: linear-gradient(135deg, var(--secondary) 0%, #1a535c 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
            margin-bottom: 3rem;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #e9ecef;
        }
        .search-bar {
            max-width: 600px;
            margin: 2rem auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-bar input {
            flex: 1;
            padding: 15px 25px;
            border: none;
            font-size: 1rem;
        }
        .search-bar button {
            background-color: var(--accent);
            color: var(--secondary);
            border: none;
            padding: 0 30px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-bar button:hover {
            background-color: #ffd166;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: #fff;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--secondary);
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; border-bottom: 3px solid var(--accent); padding-bottom: 10px; }
        h3 { font-size: 1.8rem; color: var(--primary); }
        h4 { font-size: 1.4rem; color: var(--gray); }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: var(--secondary);
            font-weight: 700;
        }
        em {
            color: var(--primary);
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-img:hover {
            transform: translateY(-5px);
        }
        aside {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary);
        }
        .widget ul {
            list-style: none;
        }
        .widget li {
            margin-bottom: 10px;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .widget li:hover {
            border-left-color: var(--accent);
            padding-left: 1.5rem;
        }
        .interaction-forms {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin-top: 3rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--secondary);
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ced4da;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.2);
        }
        .rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            margin: 10px 0;
        }
        .rating i {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating i:hover, .rating i.active {
            color: var(--accent);
        }
        .btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: var(--border-radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        .btn:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
        }
        friend-link {
            display: block;
            background-color: var(--secondary);
            color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        friend-link h2 {
            color: var(--accent);
            border: none;
            margin-top: 0;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        .friend-links a {
            background-color: rgba(255,255,255,0.1);
            padding: 10px 20px;
            border-radius: 50px;
            color: white;
        }
        .friend-links a:hover {
            background-color: var(--accent);
            color: var(--secondary);
        }
        footer {
            background-color: var(--secondary);
            color: var(--light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #adb5bd;
        }
        .update-time {
            background-color: #e9ecef;
            padding: 10px 15px;
            border-radius: var(--border-radius);
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 2rem;
            display: inline-block;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            article, .interaction-forms {
                padding: 1.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }