*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #0d0f14;
            color: #e8edf0;
            line-height: 1.75;
            font-size: 1rem;
        }
        a {
            color: #6ecbf5;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ffbe5c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #f0f4fa;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 3px solid #ff6b35;
            display: inline-block;
            padding-bottom: 0.3rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #ff6b35;
            padding-left: 1rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #ffbe5c;
        }
        h4 {
            font-size: 1.15rem;
            color: #b0d9f0;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #141822 0%, #1f2a3a 100%);
            padding: 0 0 0 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
            border-bottom: 1px solid #2e3a4e;
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            max-width: 1160px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #ff6b35, #ffbe5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-shadow: 0 0 30px rgba(255, 107, 53, 0.2);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ff6b35;
            font-size: 1.8rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            opacity: 0.7;
            font-weight: 400;
            -webkit-text-fill-color: initial;
            color: #aab8cc;
            letter-spacing: 0.3px;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #4a5a72;
            color: #e8edf0;
            font-size: 1.6rem;
            padding: 6px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            border-color: #ff6b35;
            color: #ff6b35;
        }
        nav#main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 18px;
            align-items: center;
        }
        nav#main-nav a {
            font-size: 0.92rem;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        nav#main-nav a:hover {
            border-bottom-color: #ff6b35;
            color: #ffbe5c;
        }
        .nav-cta {
            background: #ff6b35;
            color: #0d0f14 !important;
            padding: 6px 18px !important;
            border-radius: 30px;
            font-weight: 700;
            border: none !important;
        }
        .nav-cta:hover {
            background: #ffbe5c !important;
            color: #0d0f14 !important;
        }
        .breadcrumb {
            background: #1a212b;
            padding: 10px 20px;
            font-size: 0.85rem;
            border-bottom: 1px solid #2a3545;
            max-width: 1160px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #8a9bb5;
        }
        .breadcrumb a:hover {
            color: #ffbe5c;
        }
        .breadcrumb span {
            color: #6ecbf5;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: #141a24;
            padding: 30px 28px;
            border-radius: 18px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
        }
        .article-body .meta {
            color: #8a9bb5;
            font-size: 0.9rem;
            margin-bottom: 1.8rem;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-body .meta i {
            margin-right: 5px;
        }
        .featured-image {
            margin: 24px 0 30px;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.5);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #0d0f14;
            padding: 8px 16px;
            font-size: 0.85rem;
            color: #aab8cc;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #141a24;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            border-bottom: 2px solid #2a3545;
            padding-bottom: 10px;
            margin-bottom: 16px;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid #1f2937;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a i {
            color: #ff6b35;
            font-size: 0.8rem;
        }
        .function-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 20px;
            background: #0f151f;
            padding: 28px 24px;
            border-radius: 18px;
            border: 1px solid #253040;
        }
        .function-section .func-block {
            background: #141a24;
            padding: 20px 18px;
            border-radius: 14px;
        }
        .function-section .func-block h4 {
            margin-top: 0;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .function-section .func-block form {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .function-section .func-block input,
        .function-section .func-block textarea,
        .function-section .func-block select {
            background: #0d0f14;
            border: 1px solid #2e3a4e;
            border-radius: 8px;
            padding: 10px 14px;
            color: #e8edf0;
            font-size: 0.95rem;
            width: 100%;
            transition: 0.2s;
        }
        .function-section .func-block input:focus,
        .function-section .func-block textarea:focus,
        .function-section .func-block select:focus {
            outline: none;
            border-color: #ff6b35;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
        }
        .function-section .func-block textarea {
            min-height: 70px;
            resize: vertical;
        }
        .function-section .func-block button {
            background: #ff6b35;
            border: none;
            color: #0d0f14;
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 30px;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .function-section .func-block button:hover {
            background: #ffbe5c;
            transform: scale(1.02);
        }
        .func-block .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 8px 0 12px;
        }
        .func-block .star-rating input {
            display: none;
        }
        .func-block .star-rating label {
            font-size: 1.8rem;
            color: #3a475a;
            cursor: pointer;
            transition: 0.2s;
        }
        .func-block .star-rating label:hover,
        .func-block .star-rating label:hover~label,
        .func-block .star-rating input:checked~label {
            color: #ffbe5c;
        }
        @media (max-width: 700px) {
            .function-section {
                grid-template-columns: 1fr;
            }
        }
        friend-link {
            display: block;
            background: #10161f;
            border-radius: 16px;
            padding: 24px 22px;
            margin-top: 36px;
            border: 1px solid #253040;
        }
        friend-link::before {
            content: "🔗 \00a0 Friend Links";
            display: block;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffbe5c;
            margin-bottom: 14px;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: #1f2937;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: 0.2s;
        }
        friend-link a:hover {
            background: #ff6b35;
            color: #0d0f14;
        }
        footer {
            background: #0a0e16;
            border-top: 2px solid #1f2937;
            padding: 30px 20px 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #7a8aa0;
        }
        footer .footer-inner {
            max-width: 1160px;
            margin: 0 auto;
        }
        footer a {
            color: #6ecbf5;
        }
        footer .copyright {
            margin-top: 16px;
            border-top: 1px solid #1f2937;
            padding-top: 16px;
            font-size: 0.82rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav#main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 16px 0 8px;
                gap: 6px;
                border-top: 1px solid #2a3545;
                margin-top: 10px;
            }
            nav#main-nav.open {
                display: flex;
            }
            nav#main-nav a {
                padding: 10px 0;
                border-bottom: 1px solid #1f2937;
                width: 100%;
            }
            .nav-cta {
                text-align: center;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .article-body {
                padding: 20px 16px;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-body {
                padding: 16px 12px;
            }
            .function-section {
                padding: 18px 14px;
            }
            .function-section .func-block {
                padding: 14px 12px;
            }
        }
        .highlight-box {
            background: linear-gradient(135deg, #1b2535, #141a24);
            border-left: 4px solid #ff6b35;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box i {
            color: #ffbe5c;
            margin-right: 8px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .stat-card {
            background: #1a212b;
            padding: 16px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid #2a3545;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffbe5c;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #8a9bb5;
        }
        .blockquote-custom {
            background: #1a212b;
            padding: 20px 24px;
            border-radius: 14px;
            border-left: 5px solid #6ecbf5;
            font-style: italic;
            margin: 24px 0;
        }
        .blockquote-custom cite {
            display: block;
            margin-top: 10px;
            font-style: normal;
            font-weight: 600;
            color: #ffbe5c;
        }
        .inline-link {
            color: #6ecbf5;
            font-weight: 600;
            border-bottom: 1px dotted #6ecbf5;
        }
        .inline-link:hover {
            color: #ffbe5c;
            border-bottom-color: #ffbe5c;
        }
        .toc {
            background: #10161f;
            border-radius: 14px;
            padding: 18px 22px;
            margin: 20px 0 28px;
            border: 1px solid #253040;
        }
        .toc ol {
            margin: 10px 0 0 0;
            padding-left: 1.2rem;
        }
        .toc ol li {
            padding: 4px 0;
        }
        .toc ol li a {
            color: #b0d9f0;
        }