* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fa;
            color: #1a2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0d2b3e 0%, #1a4a5f 100%);
            color: #fff;
            padding: 16px 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;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #ffd54f, #ff8f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd54f;
            color: #ffd54f;
            font-size: 1.6rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.4rem;
            padding: 8px 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: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e0f2f1;
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd54f;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #e8edf2;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ea;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #d32f2f;
        }
        .breadcrumb span {
            color: #6c7a89;
        }
        .breadcrumb .sep {
            color: #b0bec5;
            margin: 0 4px;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 36px 40px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .article-body h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 8px;
            color: #0d2b3e;
        }
        .article-body h1 i {
            color: #d32f2f;
            margin-right: 12px;
        }
        .article-body .meta {
            color: #6c7a89;
            font-size: 0.9rem;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            border-bottom: 1px solid #eef2f6;
            padding-bottom: 16px;
        }
        .article-body .meta i {
            margin-right: 6px;
        }
        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 32px 0 12px;
            color: #0d2b3e;
            border-left: 4px solid #d32f2f;
            padding-left: 16px;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #1a4a5f;
        }
        .article-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 18px 0 8px;
            color: #2c5f7a;
        }
        .article-body p {
            margin-bottom: 16px;
            color: #2c3e50;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
            color: #2c3e50;
        }
        .article-body li {
            margin-bottom: 6px;
        }
        .article-body strong {
            color: #0d2b3e;
            font-weight: 700;
        }
        .article-body .highlight-box {
            background: #f0f7fc;
            border-left: 4px solid #1976d2;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .article-body .highlight-box i {
            color: #1976d2;
            margin-right: 8px;
        }
        .article-body .emoji-big {
            font-size: 1.3em;
            margin-right: 4px;
        }
        .hero-image-wrap {
            margin: 24px 0 28px;
            border-radius: 12px;
            overflow: hidden;
            background: #e8edf2;
            position: relative;
        }
        .hero-image-wrap img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-image-wrap .img-caption {
            padding: 12px 16px;
            font-size: 0.85rem;
            color: #546e7a;
            background: #f5f7fa;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0d2b3e;
            margin-bottom: 14px;
            border-bottom: 2px solid #f0f2f5;
            padding-bottom: 10px;
        }
        .sidebar-card h3 i {
            color: #d32f2f;
            margin-right: 8px;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-link-list li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f2f5;
        }
        .sidebar-link-list li:last-child {
            border-bottom: none;
        }
        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #2c3e50;
            font-size: 0.9rem;
        }
        .sidebar-link-list a:hover {
            color: #d32f2f;
            text-decoration: none;
        }
        .sidebar-link-list a i {
            color: #ff8f00;
            font-size: 0.75rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #dce3ea;
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #d32f2f;
        }
        .search-form button {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 12px 18px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #b71c1c;
        }
        .comment-rating-section {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 2px solid #eef2f6;
        }
        .comment-rating-section h2 {
            border-left-color: #ff8f00;
        }
        .comment-form,
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin: 16px 0 24px;
        }
        .comment-form textarea {
            padding: 14px 16px;
            border: 2px solid #dce3ea;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #d32f2f;
        }
        .comment-form input,
        .rating-form input {
            padding: 12px 16px;
            border: 2px solid #dce3ea;
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form input:focus,
        .rating-form input:focus {
            border-color: #d32f2f;
        }
        .comment-form .form-row,
        .rating-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input,
        .rating-form .form-row input {
            flex: 1;
            min-width: 180px;
        }
        .comment-form button,
        .rating-form button {
            background: #0d2b3e;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #1a4a5f;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ffc107;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #ff8f00;
        }
        .rating-stars i.active {
            color: #ff8f00;
        }
        .site-footer {
            background: #0d2b3e;
            color: #cfd8dc;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .site-footer .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer h4 {
            color: #ffd54f;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .site-footer a {
            color: #b0bec5;
        }
        .site-footer a:hover {
            color: #ffd54f;
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 0;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            font-size: 0.85rem;
            color: #78909c;
        }
        .copyright i {
            margin: 0 4px;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: rgba(13, 43, 62, 0.98);
                padding: 16px 12px;
                border-radius: 12px;
                margin-top: 8px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .article-body {
                padding: 24px 18px;
            }
            .article-body h1 {
                font-size: 1.7rem;
            }
            .article-body h2 {
                font-size: 1.35rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .comment-form .form-row,
            .rating-form .form-row {
                flex-direction: column;
            }
            .hero-image-wrap img {
                max-height: 260px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-body {
                padding: 18px 14px;
            }
            .article-body h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .text-muted {
            color: #6c7a89;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .gap-1 {
            gap: 6px;
        }
        .fw-700 {
            font-weight: 700;
        }