:root {
            --primary-color: #2a9d8f;
            --secondary-color: #264653;
            --accent-color: #e9c46a;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --gray-color: #6c757d;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            line-height: 1.7;
            color: var(--dark-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--secondary-color);
            color: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .my-logo i {
            font-size: 2rem;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: var(--primary-color);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: var(--gray-color);
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        article {
            margin-bottom: 40px;
        }
        h1 {
            color: var(--secondary-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: 35px 0 20px;
            padding-top: 10px;
        }
        h3 {
            color: var(--secondary-color);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--dark-color);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--secondary-color);
            font-weight: 600;
            margin-bottom: 30px;
            padding: 15px;
            background-color: rgba(233, 196, 106, 0.1);
            border-left: 5px solid var(--accent-color);
        }
        .highlight {
            background-color: rgba(42, 157, 143, 0.1);
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
            border-left: 4px solid var(--primary-color);
        }
        emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            font-weight: 700;
            color: var(--primary-color);
        }
        .related-link {
            color: var(--primary-color);
            text-decoration: none;
            border-bottom: 1px dashed var(--primary-color);
            transition: all 0.2s ease;
        }
        .related-link:hover {
            color: var(--secondary-color);
            border-bottom: 1px solid var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 30px auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        figcaption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: var(--secondary-color);
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 10px;
        }
        .search-form input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            margin-bottom: 10px;
        }
        .search-form button {
            width: 100%;
            padding: 12px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        .search-form button:hover {
            background-color: var(--secondary-color);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ddd;
            margin: 15px 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 3px;
            transition: color 0.2s ease;
        }
        .stars i:hover,
        .stars i.active {
            color: #ffc107;
        }
        .rating-form button {
            width: 100%;
            padding: 12px;
            background-color: var(--accent-color);
            color: var(--dark-color);
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        .rating-form button:hover {
            background-color: #d4b152;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--gray-color);
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        .comments-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #eee;
        }
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            margin-bottom: 15px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-family: var(--font-main);
            font-size: 1rem;
        }
        .comment-form button {
            padding: 15px 30px;
            background-color: var(--secondary-color);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        .comment-form button:hover {
            background-color: var(--primary-color);
        }
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: var(--accent-color);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 15px;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 80px;
                right: -100%;
                flex-direction: column;
                background-color: var(--secondary-color);
                width: 80%;
                height: calc(100vh - 80px);
                padding: 40px 20px;
                transition: right 0.5s ease;
                box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
            }
            .nav-links.active {
                right: 0;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-top {
                padding: 12px 0;
            }
        }
        .tooltip {
            position: relative;
            display: inline-block;
            border-bottom: 1px dotted var(--primary-color);
            cursor: help;
        }
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: var(--secondary-color);
            color: white;
            text-align: center;
            padding: 10px;
            border-radius: 6px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
        }
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }
        .btn {
            display: inline-block;
            padding: 12px 25px;
            background-color: var(--primary-color);
            color: white;
            text-decoration: none;
            border-radius: 6px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.1);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-box {
            background-color: rgba(42, 157, 143, 0.1);
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            transition: transform 0.3s ease;
        }
        .stat-box:hover {
            transform: translateY(-5px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--gray-color);
        }