* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0b3b5e;
            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, #0f1a2b, #1a2d47);
            color: #fff;
            padding: 18px 0;
            border-bottom: 3px solid #e9b741;
            position: sticky;
            top: 0;
            z-index: 100;
            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: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f6d365, #e9b741);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(233, 183, 65, 0.3);
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #e9b741;
            margin-right: 6px;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e0e9f2;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f6d365;
            text-decoration: none;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0 20px;
            max-width: 1120px;
            margin: 0 auto;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 10px;
            color: #7a8a9e;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #3d4f64;
            font-weight: 500;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .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: 2.6rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #0f1a2b;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .article-body h1 i {
            color: #e9b741;
        }
        .article-body h2 {
            font-size: 1.9rem;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #14273e;
            font-weight: 700;
            border-left: 5px solid #e9b741;
            padding-left: 18px;
        }
        .article-body h3 {
            font-size: 1.45rem;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #1a2d47;
            font-weight: 600;
        }
        .article-body h4 {
            font-size: 1.15rem;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #2c405a;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #2a3a4e;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 22px 24px;
            color: #2a3a4e;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body strong {
            color: #0f1a2b;
            font-weight: 700;
        }
        .article-body .highlight-box {
            background: #eef4fa;
            border-radius: 14px;
            padding: 28px 30px;
            margin: 30px 0;
            border-left: 6px solid #e9b741;
        }
        .article-body .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .article-body .stat-badge {
            display: inline-block;
            background: #1a2d47;
            color: #f6d365;
            padding: 2px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-right: 6px;
        }
        .featured-image-wrapper {
            margin: 32px 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image-wrapper img {
            width: 100%;
            display: block;
        }
        .featured-image-wrapper figcaption {
            background: #f0f4f9;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #4a5e74;
            text-align: center;
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #e6ecf3;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.25rem;
            color: #0f1a2b;
            margin-bottom: 16px;
            border-bottom: 2px solid #e9b741;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar ul li {
            padding: 8px 0;
            border-bottom: 1px solid #eef2f7;
        }
        .sidebar ul li a {
            font-weight: 500;
            display: block;
        }
        .sidebar ul li a:hover {
            padding-left: 4px;
        }
        .search-form {
            display: flex;
            margin: 18px 0 28px;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #dce3ec;
            background: #fff;
            transition: border-color 0.2s;
        }
        .search-form:focus-within {
            border-color: #e9b741;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 12px 20px;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #1a2d47;
            color: #fff;
            border: none;
            padding: 12px 24px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #0f1a2b;
        }
        .interaction-area {
            margin-top: 50px;
            padding-top: 40px;
            border-top: 2px solid #e6ecf3;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        @media(max-width:640px) {
            .interaction-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 16px;
            padding: 24px 26px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf3;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.3rem;
            color: #0f1a2b;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-section textarea,
        .rating-section textarea {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .comment-section textarea:focus,
        .rating-section textarea:focus {
            border-color: #e9b741;
            outline: none;
        }
        .comment-section input,
        .rating-section input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            margin-bottom: 12px;
            transition: border-color 0.2s;
        }
        .comment-section input:focus,
        .rating-section input:focus {
            border-color: #e9b741;
            outline: none;
        }
        .btn-submit {
            background: #1a2d47;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-submit:hover {
            background: #0f1a2b;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #dce3ec;
            cursor: pointer;
            margin-bottom: 14px;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #e9b741;
            transform: scale(1.1);
        }
        .star-rating.active i.active {
            color: #e9b741;
        }
        friend-link {
            display: block;
            background: #eef4fa;
            border-radius: 14px;
            padding: 28px 30px;
            margin: 40px 0 20px;
            border: 1px solid #dce3ec;
        }
        friend-link h3 {
            font-size: 1.3rem;
            color: #0f1a2b;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        friend-link .friend-list li a {
            font-weight: 500;
            padding: 4px 0;
            display: inline-block;
        }
        .site-footer {
            background: #0f1a2b;
            color: #bcc9d9;
            padding: 36px 0 28px;
            border-top: 3px solid #e9b741;
            margin-top: 40px;
        }
        .site-footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
        }
        .site-footer .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .site-footer .copyright strong {
            color: #e9b741;
        }
        .site-footer .footer-links a {
            color: #bcc9d9;
            margin-left: 20px;
            font-size: 0.9rem;
        }
        .site-footer .footer-links a:hover {
            color: #f6d365;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #14273e;
                padding: 16px 0 10px;
                border-radius: 12px;
                margin-top: 12px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 20px;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                position: static;
                margin-top: 30px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 14px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
                gap: 4px 8px;
                padding: 0 14px;
            }
            .highlight-box {
                padding: 18px 18px;
            }
            .comment-section,
            .rating-section {
                padding: 18px 16px;
            }
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .text-muted {
            color: #5a6e84;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #5a6e84;
            background: #eef4fa;
            padding: 8px 18px;
            border-radius: 50px;
            display: inline-block;
            margin-bottom: 18px;
        }