* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #2c80ff;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff6b2c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #1a2a3a, #2c3e50);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffd166;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #ffedb8;
        }
        .my-logo i {
            margin-right: 8px;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav li {
            margin-left: 2rem;
        }
        nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 3px solid transparent;
        }
        nav a:hover,
        nav a.active {
            color: #ffd166;
            border-bottom-color: #ffd166;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffd166;
        }
        .breadcrumb {
            background: #f8f9fa;
            padding: 1rem 0;
            border-bottom: 1px solid #ddd;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #2c80ff;
        }
        .breadcrumb span {
            color: #999;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.08);
            padding: 3rem;
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a2a3a;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ff6b2c;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #2c3e50;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.6rem;
            color: #3a506b;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: #444;
            font-weight: 500;
            background: #f9f9ff;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #2c80ff;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd16630, #ff6b2c20);
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px dashed #ff9e6d;
            margin: 1.5rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            font-weight: 700;
            color: #ff6b2c;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background: #f8f9ff;
            border-radius: 10px;
        }
        .link-list a {
            display: flex;
            align-items: center;
            padding: 0.8rem;
            background: white;
            border-radius: 8px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
        }
        .link-list a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(44, 128, 255, 0.1);
        }
        .link-list i {
            margin-right: 10px;
            color: #2c80ff;
        }
        .image-container {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 1px solid #eee;
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .update-time {
            font-size: 0.9rem;
            color: #888;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dotted #ccc;
        }
        .update-time i {
            margin-right: 5px;
        }
        .interactive-section {
            margin: 3rem 0;
            padding: 2rem;
            background: #f0f7ff;
            border-radius: 12px;
            border: 1px solid #cce0ff;
        }
        .interactive-section h3 {
            color: #1a5fb4;
            margin-top: 0;
        }
        form {
            display: grid;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #bbb;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2c80ff;
            box-shadow: 0 0 0 3px rgba(44, 128, 255, 0.2);
        }
        button {
            background: linear-gradient(to right, #ff6b2c, #ff8e53);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            justify-self: start;
        }
        button:hover {
            background: linear-gradient(to right, #ff5722, #ff7b42);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 107, 44, 0.4);
        }
        .rating {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1rem 0;
        }
        .stars {
            color: #ffd166;
            font-size: 1.5rem;
        }
        .stars i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover {
            color: #ffb347;
        }
        footer {
            background: #1a2a3a;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h4 {
            color: #ffd166;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #bdc3c7;
        }
        .footer-section a:hover {
            color: #ffd166;
        }
        friend-link {
            display: block;
            background: #2c3e50;
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 4px solid #ff6b2c;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2c3e50;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2c3e50;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                border-radius: 0 0 12px 12px;
            }
            nav ul.show {
                display: flex;
            }
            nav li {
                margin: 0.5rem 0;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            article {
                padding: 1.5rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }