* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #004d99;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e65c00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f1b2d 0%, #1a3a4a 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(45deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            text-shadow: 0 2px 10px rgba(255, 210, 0, 0.2);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd200;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e0e7f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd200;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 5px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.85rem;
            color: #444;
            border-bottom: 1px solid #d0d7de;
        }
        .breadcrumb a {
            color: #004d99;
        }
        .breadcrumb a:hover {
            color: #e65c00;
        }
        .breadcrumb span {
            margin: 0 6px;
            color: #888;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0 60px;
        }
        .content-area {
            background: #fff;
            border-radius: 16px;
            padding: 40px 36px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 30px 24px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.6rem;
            margin-bottom: 16px;
            color: #0a1a2a;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #f7971e;
            margin-right: 10px;
        }
        h2 {
            font-size: 1.9rem;
            margin-top: 48px;
            margin-bottom: 18px;
            color: #0f1b2d;
            font-weight: 700;
            border-left: 6px solid #f7971e;
            padding-left: 16px;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 34px;
            margin-bottom: 12px;
            color: #1a3a4a;
            font-weight: 600;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 22px;
            margin-bottom: 8px;
            color: #2a4a5a;
            font-weight: 600;
        }
        p {
            margin-bottom: 18px;
            color: #2d2d3f;
            font-size: 1rem;
        }
        .update-time {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 28px;
            padding-bottom: 18px;
            border-bottom: 1px solid #eef0f4;
        }
        .update-time i {
            color: #f7971e;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f0f3f8;
            padding: 12px 18px;
            font-size: 0.88rem;
            color: #555;
        }
        .highlight-box {
            background: #fef9ee;
            border-left: 6px solid #f7971e;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #1a3a4a;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 12px 16px;
            border: 1px solid #dde3ea;
            text-align: left;
        }
        th {
            background: #0f1b2d;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8f9fc;
        }
        tr:hover {
            background: #eef3fa;
        }
        .btn {
            display: inline-block;
            padding: 10px 24px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn-primary {
            background: #f7971e;
            color: #fff;
        }
        .btn-primary:hover {
            background: #e65c00;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #004d99;
            color: #004d99;
        }
        .btn-outline:hover {
            background: #004d99;
            color: #fff;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid #d0d7de;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f7971e;
            outline: none;
        }
        .search-form button {
            padding: 12px 28px;
            background: #0f1b2d;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #1a3a4a;
        }
        .rating-section {
            background: #f8f9fc;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 28px 0;
        }
        .stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            margin: 8px 0;
        }
        .stars i.active {
            color: #f7971e;
        }
        .stars i:hover {
            color: #f0b400;
            transform: scale(1.1);
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #d0d7de;
            border-radius: 8px;
            font-size: 1rem;
            min-height: 110px;
            resize: vertical;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #f7971e;
            outline: none;
        }
        .comment-form .btn {
            margin-top: 10px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-top: 0;
            margin-bottom: 16px;
            border-left: 4px solid #f7971e;
            padding-left: 12px;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
        }
        .sidebar-links li {
            margin-bottom: 10px;
        }
        .sidebar-links a {
            display: block;
            padding: 8px 12px;
            background: #f5f7fa;
            border-radius: 8px;
            font-size: 0.92rem;
            transition: background 0.2s, color 0.2s;
        }
        .sidebar-links a:hover {
            background: #e9edf2;
            color: #e65c00;
            text-decoration: none;
        }
        .sidebar-links a i {
            margin-right: 8px;
            color: #f7971e;
        }
        .site-footer {
            background: #0f1b2d;
            color: #ccc;
            padding: 40px 0 30px;
            margin-top: 20px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-inner h4 {
            color: #ffd200;
            margin-top: 0;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #aab8c8;
            display: block;
            margin-bottom: 6px;
            font-size: 0.92rem;
        }
        .footer-inner a:hover {
            color: #ffd200;
            text-decoration: none;
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 6px;
            padding: 4px 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 6px;
            font-size: 0.88rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd200;
        }
        .copyright {
            border-top: 1px solid #2a3a4a;
            padding-top: 22px;
            text-align: center;
            font-size: 0.85rem;
            color: #8899aa;
        }
        .copyright strong {
            color: #ffd200;
        }
        .nav-toggle:checked~.nav-menu {
            display: flex;
            flex-direction: column;
            width: 100%;
            background: #0f1b2d;
            padding: 16px 0 20px;
            border-top: 1px solid #2a3a4a;
        }
        .nav-toggle:checked~.nav-menu a {
            padding: 10px 16px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .content-area {
                order: 1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding-top: 12px;
            }
            .nav-menu a {
                padding: 10px 14px;
                border-radius: 6px;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .content-area {
                padding: 24px 18px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .content-area {
                padding: 18px 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .stars {
                font-size: 1.5rem;
            }
            .search-form button {
                padding: 12px 18px;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #f7971e;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(247, 151, 30, 0.3);
            cursor: pointer;
            transition: transform 0.2s, background 0.2s;
            border: none;
            z-index: 999;
        }
        .scroll-top:hover {
            background: #e65c00;
            transform: translateY(-4px);
        }
        @media (max-width: 480px) {
            .scroll-top {
                bottom: 16px;
                right: 16px;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }