:root {
            --primary-blue: #0055A4;
            --secondary-blue: #003366;
            --accent-gold: #D4AF37;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --light-text: #6c757d;
            --border-color: #dee2e6;
            --success-green: #28a745;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
            line-height: 1.7;
            color: var(--dark-text);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-gold);
        }
        .my-logo span {
            background: linear-gradient(to right, var(--accent-gold), #ffecb3);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            border-bottom-color: var(--accent-gold);
            color: #ffecb3;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--secondary-blue);
            padding: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 15px 10px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            font-weight: 600;
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background-color: rgba(255,255,255,0.05);
            padding-left: 20px;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light-bg);
            font-size: 0.95rem;
            color: var(--light-text);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            max-width: 100%;
        }
        h1, h2, h3, h4 {
            color: var(--secondary-blue);
            margin-top: 1.8em;
            margin-bottom: 0.7em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid var(--accent-gold);
            padding-bottom: 15px;
            margin-top: 0;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--primary-blue);
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-blue);
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--secondary-blue);
            background-color: rgba(0, 85, 164, 0.05);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            border-left: 4px solid var(--accent-gold);
        }
        strong {
            color: var(--secondary-blue);
            font-weight: 700;
        }
        em {
            color: var(--primary-blue);
            font-style: italic;
        }
        a.content-link {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-blue);
            transition: var(--transition);
        }
        a.content-link:hover {
            color: var(--accent-gold);
            border-bottom-style: solid;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin: 30px 0;
            font-size: 0.95rem;
            color: var(--light-text);
            flex-wrap: wrap;
            gap: 15px;
        }
        .update-time {
            background-color: rgba(40, 167, 69, 0.1);
            padding: 8px 15px;
            border-radius: 20px;
            color: var(--success-green);
            font-weight: 600;
        }
        .featured-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 30px 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--light-text);
            margin-top: -20px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        blockquote {
            background: linear-gradient(to right, rgba(0, 85, 164, 0.05), transparent);
            border-left: 5px solid var(--accent-gold);
            padding: 25px;
            margin: 35px 0;
            font-size: 1.2rem;
            color: var(--secondary-blue);
            border-radius: 0 10px 10px 0;
        }
        blockquote cite {
            display: block;
            margin-top: 10px;
            font-size: 1rem;
            color: var(--light-text);
        }
        .stats-box {
            background-color: var(--light-bg);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            margin: 30px 0;
        }
        .stats-box h4 {
            margin-top: 0;
            color: var(--primary-blue);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-blue);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--light-text);
            margin-top: 8px;
        }
        aside {
            position: sticky;
            top: 140px;
            align-self: start;
            height: fit-content;
        }
        @media (max-width: 992px) {
            aside {
                position: static;
            }
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }
        .sidebar-title {
            font-size: 1.4rem;
            color: var(--secondary-blue);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-gold);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 14px 18px;
            border: 2px solid var(--border-color);
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-blue);
        }
        .search-btn {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--secondary-blue);
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border-color);
        }
        .link-list a {
            color: var(--dark-text);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .link-list a:hover {
            color: var(--primary-blue);
            padding-left: 5px;
        }
        .link-list i {
            color: var(--accent-gold);
        }
        .comment-rating-section {
            margin: 50px 0;
            padding: 40px;
            background-color: var(--light-bg);
            border-radius: 15px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .rating-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 40px;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin: 20px 0;
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating .star {
            transition: var(--transition);
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent-gold);
            transform: scale(1.1);
        }
        .comment-form,
        .rating-form {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: var(--secondary-blue);
        }
        .form-control {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary-blue);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 85, 164, 0.1);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: white;
            border: none;
            padding: 16px 40px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: block;
            margin: 30px auto 0;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 85, 164, 0.2);
        }
        footer {
            background-color: var(--secondary-blue);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            color: white;
        }
        .footer-links h4 {
            color: white;
            border-bottom: 2px solid var(--accent-gold);
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 8px;
            margin: 10px 0;
            border-left: 4px solid var(--accent-gold);
        }
        friend-link a {
            color: white;
            font-weight: 600;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.95rem;
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-4 { margin-top: 2.5rem; }
        .py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
        .emoji { font-size: 1.3em; vertical-align: middle; }