* { 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: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { color: #2a5c8b; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #1a3c5c 0%, #0d1f2d 100%);
            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 {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #f4f4f4;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo span { color: #4cc9f0; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e9ecef;
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #4cc9f0;
            border-bottom-color: #4cc9f0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            max-width: 1280px;
            margin: 1rem auto;
            padding: 0 1.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #6c757d; }
        .breadcrumb a:hover { color: #2a5c8b; }
        .content-container {
            max-width: 1280px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-container { grid-template-columns: 1fr; }
        }
        main { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 6px 15px rgba(0,0,0,0.05); }
        article > * + * { margin-top: 1.8rem; }
        h1 {
            font-size: 2.8rem;
            color: #1a3c5c;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #e63946;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5c8b;
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9ecef;
        }
        h3 { font-size: 1.6rem; color: #3a7ca5; margin-top: 2rem; }
        h4 { font-size: 1.3rem; color: #5a8fb8; margin-top: 1.5rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        strong { color: #1a3c5c; }
        em { font-style: italic; }
        .lead {
            font-size: 1.3rem;
            color: #495057;
            background: #f1f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #4cc9f0;
        }
        .highlight-box {
            background: linear-gradient(to right, #fff9e6, #fff);
            border-left: 5px solid #ffc107;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .search-form, .comment-form, .rating-form {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #dee2e6;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        button {
            background: #2a5c8b;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: #1a3c5c;
            transform: translateY(-2px);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffc107; }
        aside {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 12px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.3rem;
            color: #1a3c5c;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid #dee2e6;
        }
        .internal-links ul {
            list-style: none;
        }
        .internal-links li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: all 0.3s;
        }
        .internal-links li:hover {
            border-left-color: #e63946;
            padding-left: 1.5rem;
        }
        .update-time {
            font-size: 0.9rem;
            color: #6c757d;
            background: white;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            border: 1px dashed #adb5bd;
        }
        footer {
            background: #1a3c5c;
            color: #e9ecef;
            padding: 3rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-links a {
            color: #adb5bd;
            display: block;
            margin-bottom: 0.7rem;
        }
        .footer-links a:hover { color: #4cc9f0; }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 1rem;
            background: rgba(255,255,255,0.05);
            border-radius: 6px;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2a5c8b;
            color: #adb5bd;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 400px; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            main { padding: 1.5rem; }
            .content-container { gap: 2rem; }
        }