* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f8f9fa;
            overflow-x: hidden;
        }
        a { color: #1a73e8; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #0d47a1; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin-bottom: 1.5em; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .text-center { text-align: center; }
        .site-header {
            background: linear-gradient(135deg, #0c2461 0%, #1e3799 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover { color: #ffdd59; }
        .logo i { font-size: 2rem; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #ffdd59;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffdd59;
            transition: width 0.3s;
        }
        .main-nav a:hover::after { width: 100%; }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            padding-left: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 10px;
            color: #6c757d;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .search-box {
            background: #fff;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: #1a73e8;
        }
        .search-btn {
            padding: 0 2rem;
            background: #1a73e8;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #0d47a1; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        .article-body {
            background: white;
            padding: 3rem;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .update-time {
            font-style: italic;
            color: #666;
            border-left: 4px solid #1a73e8;
            padding-left: 1rem;
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #0c2461;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
        }
        h2 {
            font-size: 2rem;
            color: #1a237e;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        h3 {
            font-size: 1.6rem;
            color: #283593;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #3949ab;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: #0c2461;
            font-weight: 700;
        }
        .highlight {
            background: linear-gradient(120deg, #ffdd59 0%, #ffdd59 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
        }
        .emoji { font-size: 1.2em; }
        .article-image {
            width: 100%;
            border-radius: 12px;
            overflow: hidden;
            margin: 2rem auto;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .article-image img {
            width: 100%;
            transition: transform 0.5s;
        }
        .article-image:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background: #f8f9fa;
            border-radius: 0 0 12px 12px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget-title {
            font-size: 1.3rem;
            color: #0c2461;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffdd59;
        }
        .link-list {
            list-style: none;
            padding-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #555;
        }
        .link-list a:hover {
            color: #1a73e8;
            gap: 12px;
        }
        .link-list i { color: #1a73e8; }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffc107;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i:hover { transform: scale(1.2); }
        .comment-form textarea,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
        }
        .submit-btn {
            width: 100%;
            padding: 12px;
            background: #0c2461;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: #1a237e; }
        .site-footer {
            background: #0c2461;
            color: #e0e0e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
            .sidebar { order: -1; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            .article-body { padding: 2rem; }
            .header-inner { flex-wrap: wrap; }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                display: block;
                padding: 1rem 0;
            }
            .hamburger { display: block; }
            .search-form { flex-direction: column; }
            .search-btn { width: 100%; }
        }