* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f5f0;
            background-image: linear-gradient(to bottom, #f8f5f0 0%, #e8e1d4 100%);
            padding-bottom: 40px;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #4a6572 100%);
            color: #ecf0f1;
            padding: 1.5rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.8rem;
            font-weight: bold;
            color: #f1c40f;
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: -0.5px;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #e67e22;
            text-shadow: 3px 3px 6px rgba(0,0,0,0.4);
            transform: scale(1.02);
        }
        .my-logo span { color: #3498db; }
        .breadcrumb {
            background-color: #34495e;
            padding: 0.8rem 2rem;
            font-size: 0.95rem;
            color: #bdc3c7;
        }
        .breadcrumb a {
            color: #f1c40f;
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb a:hover { color: #1abc9c; text-decoration: underline; }
        .breadcrumb span { margin: 0 8px; color: #7f8c8d; }
        .main-nav { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2.2rem;
            margin-right: 2rem;
        }
        .nav-links a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links a:hover, .nav-links a.active {
            background-color: rgba(241, 196, 15, 0.15);
            color: #f1c40f;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: #f1c40f;
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after { width: 80%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ecf0f1;
            font-size: 2rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .header-search {
            display: flex;
            background: rgba(255,255,255,0.1);
            border-radius: 30px;
            padding: 0.3rem;
            border: 1px solid rgba(241, 196, 15, 0.3);
        }
        .header-search input {
            background: transparent;
            border: none;
            color: white;
            padding: 0.6rem 1rem;
            width: 220px;
            outline: none;
            font-size: 1rem;
        }
        .header-search input::placeholder { color: #bdc3c7; }
        .header-search button {
            background: #f1c40f;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            color: #2c3e50;
            cursor: pointer;
            transition: background 0.3s;
        }
        .header-search button:hover { background: #e67e22; }
        .main-container {
            max-width: 1300px;
            margin: 2.5rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3.5rem;
        }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; }
        }
        article {
            background-color: white;
            padding: 3.5rem;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            border: 1px solid #e0d6c2;
        }
        h1 {
            font-size: 3.2rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 5px solid #f1c40f;
            padding-bottom: 1rem;
            font-family: 'Georgia', serif;
        }
        h2 {
            font-size: 2.4rem;
            color: #34495e;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px dashed #bdc3c7;
            font-family: 'Georgia', serif;
        }
        h3 {
            font-size: 1.9rem;
            color: #16a085;
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.5rem;
            color: #8e44ad;
            margin: 2rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.4rem;
            color: #2c3e50;
            font-weight: 500;
            background-color: #f9f7f3;
            padding: 1.8rem;
            border-left: 6px solid #3498db;
            border-radius: 0 12px 12px 0;
            margin-bottom: 2.5rem;
        }
        strong {
            color: #c0392b;
            font-weight: 700;
            background-color: rgba(192, 57, 43, 0.05);
            padding: 0 3px;
        }
        em { color: #27ae60; font-style: italic; }
        a.content-link {
            color: #2980b9;
            text-decoration: none;
            border-bottom: 1px dotted #2980b9;
            transition: all 0.2s;
            font-weight: 600;
        }
        a.content-link:hover {
            color: #e74c3c;
            border-bottom: 2px solid #e74c3c;
        }
        blockquote {
            border-left: 5px solid #f1c40f;
            padding: 1.5rem 2rem;
            margin: 2.5rem 0;
            background: linear-gradient(to right, #fffef9, #fefcf4);
            font-style: italic;
            color: #555;
            border-radius: 0 12px 12px 0;
            box-shadow: inset 0 0 10px rgba(241, 196, 15, 0.1);
        }
        .highlight-box {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            border: 2px solid #2196f3;
            padding: 2rem;
            border-radius: 12px;
            margin: 2.5rem 0;
        }
        .image-container {
            margin: 3rem auto;
            text-align: center;
            max-width: 900px;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
            border: 1px solid #ddd;
            transition: transform 0.5s ease, box-shadow 0.5s ease;
        }
        .image-container img:hover {
            transform: scale(1.01);
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
        }
        .image-caption {
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .update-time {
            background-color: #2c3e50;
            color: #ecf0f1;
            display: inline-block;
            padding: 0.6rem 1.5rem;
            border-radius: 30px;
            font-size: 0.95rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .update-time i { margin-right: 8px; color: #f1c40f; }
        aside {
            background-color: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            border: 1px solid #e0d6c2;
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar-section {
            margin-bottom: 2.5rem;
        }
        .sidebar-section h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            border-bottom: 3px solid #f1c40f;
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li {
            margin-bottom: 1rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .sidebar-links li::before {
            content: '►';
            color: #f1c40f;
            position: absolute;
            left: 0;
            font-size: 0.9rem;
        }
        .sidebar-links a {
            color: #34495e;
            text-decoration: none;
            transition: color 0.2s, padding-left 0.2s;
            display: block;
            padding: 0.3rem 0;
        }
        .sidebar-links a:hover {
            color: #e74c3c;
            padding-left: 8px;
        }
        .form-container {
            background-color: #f9f9f9;
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid #ddd;
            margin: 3rem 0;
        }
        .form-title {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-title i { color: #3498db; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input[type="text"],
        input[type="email"],
        textarea,
        select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        textarea { min-height: 150px; resize: vertical; }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ddd;
            margin: 1rem 0;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active { color: #f1c40f; }
        button[type="submit"] {
            background: linear-gradient(to right, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        button[type="submit"]:hover {
            background: linear-gradient(to right, #27ae60, #219653);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(39, 174, 96, 0.3);
        }
        footer {
            background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);
            color: #ecf0f1;
            padding: 3.5rem 2rem 2rem;
            margin-top: 4rem;
            border-top: 8px solid #f1c40f;
        }
        .footer-container {
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h4 {
            color: #f1c40f;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid rgba(241, 196, 15, 0.3);
            padding-bottom: 0.7rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.2s, padding-left 0.2s;
            display: block;
        }
        .footer-links a:hover {
            color: #f1c40f;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            margin-bottom: 1rem;
            border-radius: 6px;
            border-left: 4px solid #3498db;
        }
        friend-link a {
            color: #1abc9c !important;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 2.5rem;
            margin-top: 2.5rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
            .main-nav { width: 100%; justify-content: space-between; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #2c3e50;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1.5rem 2rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
                gap: 1rem;
            }
            .nav-links.active { display: flex; }
            .hamburger { display: block; }
            .header-search { width: 100%; margin-top: 1rem; }
            .header-search input { width: 100%; }
            .main-container { padding: 0 1rem; }
            article { padding: 2rem; }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .lead { font-size: 1.2rem; padding: 1.5rem; }
        }