*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #0f6c6c;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #0a4a4a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            color: #0b2b3b;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            margin-bottom: 0.6rem;
            border-bottom: 3px solid #cfe2e2;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
            margin-bottom: 0.4rem;
            color: #1a4a5a;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
            color: #2a5a6a;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2b3b 0%, #1a5a6a 100%);
            color: #fff;
            padding: 0.8rem 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: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #f5e7c8;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #f5c542;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f5e7c8;
        }
        .my-logo span {
            font-weight: 300;
            color: #b8d4d4;
            font-size: 0.9rem;
            margin-left: 0.3rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .primary-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.2rem 1.2rem;
        }
        .primary-nav a {
            color: #e6f0f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .primary-nav a:hover,
        .primary-nav a:focus {
            color: #f5e7c8;
            border-bottom-color: #f5c542;
            text-decoration: none;
        }
        .primary-nav a.active {
            border-bottom-color: #f5c542;
            color: #f5e7c8;
        }
        .breadcrumb-wrap {
            background: #e8f0f0;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d0e0e0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.6rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #6a8a8a;
            font-size: 1.1rem;
            margin-right: 0.3rem;
        }
        .breadcrumb a {
            color: #0f6c6c;
        }
        .breadcrumb .current {
            color: #1a4a5a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #dcecec 0%, #f4f7fb 100%);
            padding: 2.5rem 0 2rem;
            text-align: center;
            border-bottom: 1px solid #d0e0e0;
        }
        .hero h1 {
            font-size: 2.6rem;
            margin-bottom: 0.5rem;
            color: #0b2b3b;
        }
        .hero h1 i {
            color: #f5c542;
            margin-right: 0.3rem;
        }
        .hero .sub {
            font-size: 1.1rem;
            color: #2a5a6a;
            max-width: 700px;
            margin: 0 auto 1.2rem;
        }
        .hero .update-badge {
            display: inline-block;
            background: #0f6c6c;
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .hero .update-badge i {
            margin-right: 0.4rem;
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            border-bottom: 1px solid #e0ecec;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            max-width: 640px;
            margin: 0 auto;
            align-items: center;
        }
        .search-form label {
            position: absolute;
            left: -9999px;
        }
        .search-form input[type="text"] {
            flex: 1 1 260px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d0e0e0;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s, box-shadow 0.3s;
            background: #fafcfc;
        }
        .search-form input[type="text"]:focus {
            border-color: #0f6c6c;
            box-shadow: 0 0 0 4px rgba(15, 108, 108, 0.12);
        }
        .search-form button {
            background: #0f6c6c;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #0a4a4a;
            transform: scale(1.02);
        }
        .search-form button i {
            font-size: 1.1rem;
        }
        .main-wrap {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr 320px;
                gap: 3rem;
            }
        }
        .article-body {
            background: #fff;
            padding: 2rem 2rem 2.8rem;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .article-body .featured-img {
            margin: 1.2rem 0 2rem;
            border-radius: 16px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
        }
        .article-body .featured-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .article-body .featured-img figcaption {
            font-size: 0.85rem;
            color: #5a7a7a;
            margin-top: 0.4rem;
            text-align: center;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem 1.2rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            color: #0b2b3b;
            border-bottom: 2px solid #cfe2e2;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f5f5;
            margin: 0;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-card a i {
            color: #0f6c6c;
            font-size: 0.85rem;
            width: 1.2rem;
            text-align: center;
        }
        .interact-section {
            margin-top: 2.5rem;
            padding-top: 1.8rem;
            border-top: 2px solid #e8f0f0;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem 3rem;
            align-items: flex-start;
        }
        .rating-box {
            flex: 1 1 240px;
        }
        .rating-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .star-group {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-start;
            gap: 0.2rem;
            margin-top: 0.3rem;
        }
        .star-group input {
            display: none;
        }
        .star-group label {
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-group label:hover,
        .star-group label:hover~label,
        .star-group input:checked~label {
            color: #f5c542;
        }
        .star-group label:hover {
            transform: scale(1.1);
        }
        .rating-form button {
            margin-top: 0.6rem;
            background: #0f6c6c;
            color: #fff;
            border: none;
            padding: 0.5rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            font-size: 0.9rem;
        }
        .rating-form button:hover {
            background: #0a4a4a;
        }
        .comment-box {
            flex: 2 1 360px;
        }
        .comment-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .comment-form textarea {
            padding: 0.8rem 1rem;
            border: 2px solid #d0e0e0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 80px;
            transition: border-color 0.3s;
            background: #fafcfc;
        }
        .comment-form textarea:focus {
            border-color: #0f6c6c;
            outline: none;
            box-shadow: 0 0 0 4px rgba(15, 108, 108, 0.08);
        }
        .comment-form .row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .comment-form input[type="text"] {
            flex: 1 1 180px;
            padding: 0.6rem 1rem;
            border: 2px solid #d0e0e0;
            border-radius: 30px;
            font-size: 0.95rem;
            background: #fafcfc;
            transition: border-color 0.3s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #0f6c6c;
            outline: none;
            box-shadow: 0 0 0 4px rgba(15, 108, 108, 0.08);
        }
        .comment-form button {
            background: #0f6c6c;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            font-size: 0.9rem;
            align-self: flex-start;
        }
        .comment-form button:hover {
            background: #0a4a4a;
        }
        .friend-links-section {
            background: #e8f0f0;
            padding: 1.8rem 0;
            border-top: 1px solid #d0e0e0;
        }
        .friend-links-section h3 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #0b2b3b;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .friend-links-section h3 i {
            color: #0f6c6c;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            padding: 0.5rem 0;
        }
        friend-link a {
            color: #0f6c6c;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.2rem 0;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s;
        }
        friend-link a:hover {
            border-bottom-color: #0f6c6c;
            text-decoration: none;
        }
        .site-footer {
            background: #0b2b3b;
            color: #cfe2e2;
            padding: 2rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem 2rem;
            align-items: center;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            color: #9ab8b8;
        }
        .site-footer .copyright strong {
            color: #f5e7c8;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
        }
        .site-footer .footer-links a {
            color: #b8d4d4;
            font-size: 0.85rem;
        }
        .site-footer .footer-links a:hover {
            color: #f5e7c8;
            text-decoration: underline;
        }
        @media (max-width: 767px) {
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 0.8rem 0 0.2rem;
                gap: 0.2rem;
                border-top: 1px solid rgba(255, 255, 255, 0.15);
                margin-top: 0.5rem;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 0.5rem 0;
                font-size: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                width: 100%;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero .sub {
                font-size: 0.95rem;
            }
            .article-body {
                padding: 1.5rem 1rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .search-form input[type="text"] {
                flex: 1 1 100%;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .interact-section {
                flex-direction: column;
                gap: 1.5rem;
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .sidebar {
                order: -1;
            }
            .content-grid {
                gap: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo span {
                font-size: 0.75rem;
            }
        }
        @media (min-width: 768px) and (max-width: 991px) {
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .sidebar-card {
                padding: 1.2rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        .highlight-box {
            background: #f0f8f8;
            border-left: 5px solid #0f6c6c;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-big {
            font-size: 1.4rem;
            line-height: 1;
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .data-table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .data-table th,
        .data-table td {
            padding: 0.6rem 1rem;
            border: 1px solid #d0e0e0;
            text-align: left;
        }
        .data-table th {
            background: #e8f0f0;
            font-weight: 600;
            color: #0b2b3b;
        }
        .data-table tr:nth-child(even) {
            background: #f8fbfb;
        }
        .btn-top {
            position: fixed;
            bottom: 1.5rem;
            right: 1.5rem;
            background: #0f6c6c;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
            transition: background 0.3s, transform 0.2s;
            z-index: 900;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            background: #0a4a4a;
            transform: translateY(-3px);
        }
        @media (max-width: 480px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #f4f9f9;
            border-radius: 12px;
            padding: 1rem;
            text-align: center;
            border: 1px solid #d0e0e0;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #0f6c6c;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #4a6a6a;
            margin-top: 0.2rem;
        }