:root {
            --primary-green: #58cc02;
            --secondary-blue: #1cb0f6;
            --accent-orange: #ff9a00;
            --dark-gray: #4a4a4a;
            --light-gray: #f5f5f5;
            --text-dark: #2e2e2e;
            --text-light: #666;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            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(--text-dark);
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: white;
            padding: 1.5rem 0;
            border-bottom: 3px solid var(--light-gray);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-green);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--secondary-blue);
            transform: scale(1.03);
        }
        .my-logo i {
            color: var(--accent-orange);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--dark-gray);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: var(--primary-green);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--dark-gray);
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--secondary-blue);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            background: linear-gradient(135deg, var(--primary-green), var(--secondary-blue));
            padding: 2.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            text-align: center;
            color: white;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--accent-orange);
            color: white;
            border: none;
            padding: 1rem 1.8rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #e68900;
        }
        article {
            margin: 3rem 0;
        }
        h1 {
            font-size: 3rem;
            color: var(--dark-gray);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--primary-green);
            padding-left: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary-blue);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--light-gray);
        }
        h3 {
            font-size: 1.7rem;
            color: var(--primary-green);
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--accent-orange);
            margin: 2rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: var(--text-dark);
        }
        .intro {
            font-size: 1.3rem;
            color: var(--text-light);
            background-color: var(--light-gray);
            padding: 2rem;
            border-radius: var(--radius);
            margin-bottom: 2.5rem;
            border-left: 5px solid var(--secondary-blue);
        }
        .featured-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-img:hover {
            transform: scale(1.005);
        }
        .content-highlight {
            background: linear-gradient(90deg, rgba(88, 204, 2, 0.1), rgba(28, 176, 246, 0.1));
            padding: 2rem;
            border-radius: var(--radius);
            margin: 2.5rem 0;
            border-left: 5px solid var(--accent-orange);
        }
        .tip-box {
            background-color: #e8f7ff;
            border: 1px solid var(--secondary-blue);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 1.8rem 0;
        }
        .tip-box i {
            color: var(--secondary-blue);
            margin-right: 10px;
        }
        .internal-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .internal-link-card {
            background: white;
            border: 1px solid var(--light-gray);
            border-radius: var(--radius);
            padding: 1.5rem;
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
        }
        .internal-link-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: var(--primary-green);
        }
        .internal-link-card h4 {
            color: var(--secondary-blue);
            margin-top: 0;
        }
        .rating-section, .comments-section {
            background-color: var(--light-gray);
            padding: 2.5rem;
            border-radius: var(--radius);
            margin: 4rem 0;
        }
        .rating-form, .comment-form {
            display: grid;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            direction: rtl;
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--accent-orange);
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: var(--radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(88, 204, 2, 0.2);
        }
        .form-btn {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .form-btn:hover {
            background-color: #4bb702;
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--dark-gray);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 5rem;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-links h3 {
            color: var(--primary-green);
            margin-bottom: 1.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
            text-align: center;
        }
        friend-link a {
            color: var(--accent-orange);
            font-weight: bold;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #555;
            color: #aaa;
            font-size: 0.9rem;
        }
        .update-time {
            color: var(--accent-orange);
            font-weight: bold;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.5rem; }
            .main-nav ul { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                box-shadow: var(--shadow);
                padding: 1rem;
                display: none;
                flex-direction: column;
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .internal-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            body { padding: 0 10px; }
            h1 { font-size: 2rem; }
            .search-container { padding: 1.5rem; }
            .featured-img { margin: 1rem 0; }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            background-color: rgba(88, 204, 2, 0.15);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }