* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            font-size: 1.05rem;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0a3b5a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0f2b3d 0%, #1a4a62 100%);
            color: #fff;
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            padding: 4px 18px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: 0.25s;
            display: inline-block;
        }
        .my-logo:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: scale(1.02);
            text-decoration: none;
            color: #ffd966;
        }
        .my-logo span {
            color: #ffd966;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.6rem;
            padding: 4px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffd966;
        }
        .nav-menu {
            display: flex;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e6f0f7;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 30px;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd966;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: rgba(255, 215, 0, 0.18);
            color: #ffd966;
        }
        .breadcrumb {
            background: #e9eef3;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d6dfe8;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 14px;
            padding: 0 20px;
            max-width: 1120px;
            margin: 0 auto;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 14px;
            color: #7a8b9e;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #3a4e62;
            font-weight: 600;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:820px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .article-body h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0a2a3b;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-body h1 i {
            color: #d4a017;
        }
        .article-body .subhead {
            font-size: 1.2rem;
            color: #3a5a6e;
            margin-bottom: 24px;
            border-left: 4px solid #d4a017;
            padding-left: 18px;
        }
        .article-body .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
            font-size: 0.95rem;
            color: #4a5e72;
            margin-bottom: 28px;
            border-bottom: 1px solid #dce3eb;
            padding-bottom: 18px;
        }
        .article-body .meta-info i {
            margin-right: 6px;
            color: #1e6f9f;
        }
        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f2b3d;
            margin-top: 48px;
            margin-bottom: 16px;
            border-bottom: 2px solid #d4a017;
            padding-bottom: 6px;
        }
        .article-body h2 i {
            color: #d4a017;
            margin-right: 10px;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a4a62;
            margin-top: 32px;
            margin-bottom: 10px;
        }
        .article-body h3 i {
            margin-right: 8px;
            color: #1e6f9f;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a5a72;
            margin-top: 22px;
            margin-bottom: 6px;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #1f2e3c;
        }
        .article-body p strong {
            color: #0a2a3b;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 22px 28px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .highlight-box {
            background: #e6f0f9;
            border-left: 5px solid #1e6f9f;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .article-body .highlight-box.amber {
            background: #fdf6e3;
            border-left-color: #d4a017;
        }
        .article-body .feature-img-wrap {
            margin: 30px 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .article-body .feature-img-wrap img {
            width: 100%;
        }
        .article-body .feature-img-wrap figcaption {
            background: #f0f4f9;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #3a4e62;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            margin-bottom: 24px;
            border: 1px solid #e4ebf2;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f2b3d;
            margin-bottom: 14px;
            border-bottom: 2px solid #d4a017;
            padding-bottom: 6px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            padding: 6px 0;
            border-bottom: 1px solid #edf2f7;
        }
        .sidebar-card li a {
            color: #1e6f9f;
            font-weight: 500;
        }
        .sidebar-card li a:hover {
            color: #0a3b5a;
        }
        .search-form {
            display: flex;
            gap: 6px;
            margin: 10px 0 4px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #d6dfe8;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: 0.25s;
        }
        .search-form input:focus {
            border-color: #1e6f9f;
            box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.15);
        }
        .search-form button {
            background: #1e6f9f;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0 20px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #0a3b5a;
        }
        .comment-section,
        .rating-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #dce3eb;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0f2b3d;
            margin-bottom: 16px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #d6dfe8;
            border-radius: 12px;
            font-size: 1rem;
            min-height: 110px;
            resize: vertical;
            transition: 0.25s;
            font-family: inherit;
        }
        .comment-form textarea:focus {
            border-color: #1e6f9f;
            box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.1);
        }
        .comment-form .form-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .comment-form .form-row input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #d6dfe8;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            min-width: 180px;
        }
        .comment-form .form-row input:focus {
            border-color: #1e6f9f;
        }
        .comment-form button {
            background: #1e6f9f;
            color: #fff;
            border: none;
            padding: 12px 34px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover {
            background: #0a3b5a;
            transform: translateY(-1px);
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 2.2rem;
            color: #d4a017;
            cursor: pointer;
            margin: 10px 0 16px;
            transition: 0.2s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #e8b800;
            transform: scale(1.1);
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-form button {
            background: #d4a017;
            color: #1a2a3a;
            border: none;
            padding: 10px 32px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-form button:hover {
            background: #e8b800;
            transform: translateY(-1px);
        }
        .site-footer {
            background: #0f2b3d;
            color: #d6e3ed;
            padding: 40px 0 30px;
            margin-top: 50px;
        }
        .footer-inner {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        @media(max-width:700px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-inner h4 {
            color: #ffd966;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .footer-inner a {
            color: #b6d0e0;
        }
        .footer-inner a:hover {
            color: #ffd966;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            padding: 4px 0;
        }
        .footer-bottom {
            max-width: 1120px;
            margin: 30px auto 0;
            padding: 20px 20px 0;
            border-top: 1px solid #2a4a5e;
            text-align: center;
            font-size: 0.9rem;
            color: #8aa4b8;
        }
        friend-link {
            display: block;
            margin: 16px 0;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
        }
        @media(max-width:680px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(15, 43, 61, 0.98);
                padding: 16px 12px;
                border-radius: 0 0 16px 16px;
                margin-top: 12px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-toggle {
                display: inline-block;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 14px;
            }
            .breadcrumb ul {
                padding: 0 14px;
            }
            .rating-stars {
                font-size: 1.8rem;
            }
        }
        @media(max-width:480px) {
            .my-logo {
                font-size: 1.3rem;
                padding: 2px 14px;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-wrap: wrap;
            }
            .search-form button {
                width: 100%;
                padding: 12px;
            }
        }