* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f3b2d;
            color: #f0f0f0;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #4ecdc4;
            text-decoration: none;
            transition: color 0.3s ease, opacity 0.3s ease;
        }
        a:hover {
            color: #ffd166;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .emoji { margin-right: 5px; }
        .site-header {
            background: linear-gradient(135deg, #1a5c48 0%, #0f3b2d 100%);
            padding: 1rem 0;
            border-bottom: 3px solid #ffd166;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffd166;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-desktop {
            display: flex;
            gap: 1.8rem;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 209, 102, 0.15);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ffd166;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #1a5c48;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            border-top: 1px solid #2a7c62;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #2a7c62;
            font-weight: 600;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #153c2f;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #a3d9c9;
        }
        .breadcrumb span {
            color: #ccc;
            margin: 0 8px;
        }
        .search-section {
            background-color: #1a5c48;
            padding: 1.5rem 0;
            margin: 1rem 0;
            border-radius: 10px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            background-color: #f0f0f0;
            color: #333;
        }
        .search-button {
            background-color: #ffd166;
            color: #0f3b2d;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 1.8rem;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-button:hover {
            background-color: #ffc745;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .article-container {
            background-color: rgba(26, 92, 72, 0.7);
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            margin-bottom: 2rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #4ecdc4;
            font-size: 0.95rem;
            color: #a3d9c9;
        }
        .update-time {
            color: #ffd166;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffd166;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
        }
        h2 {
            font-size: 2rem;
            color: #4ecdc4;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #2a7c62;
        }
        h3 {
            font-size: 1.6rem;
            color: #a3d9c9;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #b3e9d9;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight-box {
            background-color: rgba(255, 209, 102, 0.1);
            border-left: 5px solid #ffd166;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #ffd166;
            box-shadow: 0 5px 15px rgba(0,0,0,0.4);
        }
        .feature-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .feature-img img:hover {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #a3d9c9;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background-color: #153c2f;
            border-radius: 15px;
            padding: 2rem;
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            margin-bottom: 2.5rem;
        }
        .form-title {
            color: #4ecdc4;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin-bottom: 1.5rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffd166;
        }
        .rating-submit, .comment-submit {
            background-color: #4ecdc4;
            color: #0f3b2d;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .rating-submit:hover, .comment-submit:hover {
            background-color: #3dbcb3;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #a3d9c9;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border-radius: 8px;
            border: 1px solid #2a7c62;
            background-color: #f0f0f0;
            color: #333;
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .site-footer {
            background-color: #0a291f;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-col h4 {
            color: #ffd166;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 0.7rem;
        }
        .friend-links {
            background-color: #153c2f;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .friend-links h4 {
            color: #4ecdc4;
            margin-bottom: 1rem;
        }
        .friend-link {
            display: inline-block;
            background-color: rgba(78, 205, 196, 0.15);
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 5px;
            border: 1px dashed #4ecdc4;
        }
        .friend-link:hover {
            background-color: rgba(78, 205, 196, 0.3);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a7c62;
            color: #a3d9c9;
            font-size: 0.9rem;
        }