*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fa;
            color: #1e1e2f;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d43f3a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #a12b27;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.8rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0b0e1a, #1a1f33);
            padding: 18px 0;
            border-bottom: 4px solid #d43f3a;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(135deg, #d43f3a, #f08a5d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(212, 63, 58, 0.2);
        }
        .my-logo span {
            font-weight: 300;
            font-size: 1rem;
            display: block;
            -webkit-text-fill-color: #aaa;
            color: #aaa;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #d43f3a;
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #d43f3a;
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #eaeef5;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: #d43f3a;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .main-nav .active {
            background: #d43f3a;
            color: #fff;
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid #e0e4ec;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #999;
        }
        .breadcrumb a {
            color: #d43f3a;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f1322, #1e253f);
            color: #fff;
            padding: 40px 0 30px;
            text-align: center;
            border-bottom: 6px solid #d43f3a;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 12px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .hero h1 i {
            color: #f08a5d;
        }
        .hero p {
            font-size: 1.15rem;
            color: #c8d0e0;
            max-width: 750px;
            margin: 0 auto 10px;
        }
        .hero .update-badge {
            display: inline-block;
            background: #d43f3a;
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-top: 10px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .article-body h2 {
            font-size: 2rem;
            color: #0b0e1a;
            border-left: 6px solid #d43f3a;
            padding-left: 18px;
            margin: 40px 0 20px;
            font-weight: 800;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #1a1f33;
            margin: 30px 0 14px;
            font-weight: 700;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #2c3150;
            margin: 24px 0 10px;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2a2a3a;
        }
        .article-body .code-box {
            background: #0b0e1a;
            color: #f5e56b;
            padding: 16px 22px;
            border-radius: 12px;
            font-family: 'Courier New', monospace;
            font-size: 1.1rem;
            margin: 20px 0;
            border-left: 6px solid #d43f3a;
            word-break: break-all;
        }
        .article-body .highlight-box {
            background: #fff7e6;
            border-left: 6px solid #f08a5d;
            padding: 18px 24px;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .article-body .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .article-body .stat-card {
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e8ecf4;
        }
        .article-body .stat-card i {
            font-size: 2rem;
            color: #d43f3a;
            margin-bottom: 8px;
        }
        .article-body .stat-card strong {
            display: block;
            font-size: 1.8rem;
            color: #0b0e1a;
        }
        .article-body .stat-card span {
            color: #666;
            font-size: 0.9rem;
        }
        .featured-image {
            margin: 30px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 24px 20px;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8ecf4;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            border-bottom: 3px solid #d43f3a;
            padding-bottom: 10px;
            margin-bottom: 18px;
            color: #0b0e1a;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar ul li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f2f7;
        }
        .sidebar ul li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar ul li a i {
            width: 20px;
            color: #d43f3a;
        }
        .search-form {
            display: flex;
            gap: 6px;
            margin: 16px 0 24px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #ddd;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: #d43f3a;
            box-shadow: 0 0 0 4px rgba(212, 63, 58, 0.1);
        }
        .search-form button {
            background: #d43f3a;
            color: #fff;
            border: none;
            padding: 12px 22px;
            border-radius: 40px;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            font-weight: 600;
        }
        .search-form button:hover {
            background: #a12b27;
            transform: scale(1.02);
        }
        .interaction-section {
            background: #fff;
            border-radius: 20px;
            padding: 30px 28px;
            margin-top: 40px;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8ecf4;
        }
        .interaction-section h3 {
            font-size: 1.6rem;
            color: #0b0e1a;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            color: #f0c040;
            cursor: pointer;
            margin: 10px 0 20px;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #f0a030;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px 18px;
            border: 2px solid #ddd;
            border-radius: 16px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 110px;
            outline: none;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #d43f3a;
            box-shadow: 0 0 0 4px rgba(212, 63, 58, 0.08);
        }
        .comment-form .btn-row {
            display: flex;
            gap: 14px;
            margin-top: 14px;
            flex-wrap: wrap;
        }
        .comment-form .btn-row button {
            background: #d43f3a;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form .btn-row button:hover {
            background: #a12b27;
            transform: translateY(-2px);
        }
        .comment-form .btn-row .btn-secondary {
            background: #2c3150;
        }
        .comment-form .btn-row .btn-secondary:hover {
            background: #1a1f33;
        }
        .site-footer {
            background: #0b0e1a;
            color: #c8d0e0;
            padding: 40px 0 20px;
            margin-top: 50px;
            border-top: 4px solid #d43f3a;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px 40px;
            margin-bottom: 30px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 14px;
            border-bottom: 2px solid #d43f3a;
            padding-bottom: 6px;
            display: inline-block;
        }
        .site-footer a {
            color: #b0b8d0;
        }
        .site-footer a:hover {
            color: #f08a5d;
        }
        .friend-link {
            display: block;
            padding: 4px 0;
        }
        .friend-link a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .copyright {
            border-top: 1px solid #2a2f48;
            padding-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #8890aa;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #12172e;
                padding: 18px 12px;
                border-radius: 16px;
                margin-top: 12px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                position: static;
            }
            .content-grid {
                padding: 20px 0;
            }
            .interaction-section {
                padding: 20px 16px;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo span {
                font-size: 0.75rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #d43f3a;
            color: #fff;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 6px 24px rgba(212, 63, 58, 0.3);
            cursor: pointer;
            transition: 0.2s;
            border: none;
            z-index: 99;
        }
        .scroll-top:hover {
            background: #a12b27;
            transform: translateY(-4px);
        }
        .emoji-big {
            font-size: 1.8rem;
        }
        .text-accent {
            color: #d43f3a;
            font-weight: 700;
        }
        .bg-soft-dark {
            background: #f0f2f7;
            padding: 18px 22px;
            border-radius: 16px;
        }
        hr {
            border: none;
            height: 2px;
            background: linear-gradient(to right, #d43f3a, transparent);
            margin: 30px 0;
        }