*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #0f0f1a;
            color: #e8e8f0;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #facc15;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #ffdd44;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            padding: 16px 0;
            border-bottom: 3px solid #facc15;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #facc15, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(250, 204, 21, 0.3);
            transition: transform 0.3s ease;
            display: inline-block;
            font-family: 'Segoe UI', sans-serif;
        }
        .my-logo:hover {
            transform: scale(1.04);
        }
        .my-logo small {
            font-size: 1rem;
            font-weight: 400;
            -webkit-text-fill-color: #aab;
            background: none;
            color: #aab;
            margin-left: 6px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        nav a {
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #e8e8f0;
            transition: all 0.25s ease;
            position: relative;
        }
        nav a:hover {
            background: #facc15;
            color: #0f0f1a;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #facc15;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 12px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: rotate(90deg);
        }
        .nav-menu {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb {
            background: #1a1a2e;
            padding: 12px 0;
            border-bottom: 1px solid #2a2a3e;
            font-size: 0.9rem;
            color: #999;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 8px;
            color: #666;
        }
        .breadcrumb a {
            color: #facc15;
        }
        .breadcrumb .active {
            color: #ccc;
        }
        .hero {
            background: linear-gradient(145deg, #1a1a2e 0%, #0a0a15 100%);
            padding: 60px 0 50px;
            text-align: center;
            border-bottom: 2px solid #2a2a3e;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #facc15, #ff8c00, #facc15);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: #b8b8d0;
            max-width: 720px;
            margin: 0 auto 24px;
        }
        .hero .tagline {
            display: inline-block;
            background: #facc15;
            color: #0f0f1a;
            padding: 8px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 4px 20px rgba(250, 204, 21, 0.25);
        }
        main {
            flex: 1;
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .content-body h2 {
            font-size: 2rem;
            color: #facc15;
            margin: 48px 0 16px;
            border-left: 5px solid #facc15;
            padding-left: 18px;
        }
        .content-body h3 {
            font-size: 1.5rem;
            color: #ffdd88;
            margin: 32px 0 12px;
        }
        .content-body h4 {
            font-size: 1.2rem;
            color: #e8d48b;
            margin: 24px 0 10px;
        }
        .content-body p {
            margin-bottom: 18px;
            color: #d0d0e0;
            text-align: justify;
        }
        .content-body ul,
        .content-body ol {
            margin: 0 0 20px 24px;
            color: #c8c8dd;
        }
        .content-body li {
            margin-bottom: 8px;
        }
        .content-body strong {
            color: #fff;
            font-weight: 700;
        }
        .content-body .highlight-box {
            background: #1e1e32;
            border-left: 4px solid #facc15;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .content-body .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .insight-badge {
            display: inline-block;
            background: #2a2a44;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #facc15;
            font-weight: 600;
            margin-right: 6px;
        }
        .sidebar {
            background: #16162a;
            border-radius: 20px;
            padding: 28px 22px;
            border: 1px solid #2a2a44;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #facc15;
            margin-bottom: 16px;
            border-bottom: 2px solid #2a2a44;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 10px;
            transition: background 0.2s;
            font-size: 0.95rem;
            color: #c8c8dd;
        }
        .sidebar a:hover {
            background: #1e1e36;
            color: #facc15;
            text-decoration: none;
        }
        .sidebar i {
            width: 20px;
            color: #facc15;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
            background: #1a1a2e;
            padding: 8px;
        }
        .featured-image img {
            border-radius: 14px;
            width: 100%;
        }
        .featured-image figcaption {
            text-align: center;
            padding: 12px 0 6px;
            font-size: 0.9rem;
            color: #999;
            font-style: italic;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 48px 0;
        }
        .interactive-card {
            background: #16162a;
            border-radius: 20px;
            padding: 28px 24px;
            border: 1px solid #2a2a44;
            transition: border-color 0.3s;
        }
        .interactive-card:hover {
            border-color: #facc15;
        }
        .interactive-card h3 {
            font-size: 1.3rem;
            color: #facc15;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interactive-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .interactive-card input,
        .interactive-card textarea,
        .interactive-card select {
            background: #0f0f1a;
            border: 1px solid #2a2a44;
            border-radius: 12px;
            padding: 12px 16px;
            color: #fff;
            font-size: 0.95rem;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .interactive-card input:focus,
        .interactive-card textarea:focus,
        .interactive-card select:focus {
            outline: none;
            border-color: #facc15;
        }
        .interactive-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .interactive-card button {
            background: #facc15;
            color: #0f0f1a;
            border: none;
            border-radius: 30px;
            padding: 12px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .interactive-card button:hover {
            background: #ffdd44;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(250, 204, 21, 0.3);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #444;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #facc15;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            background: #16162a;
            border-radius: 16px;
            overflow: hidden;
        }
        .data-table th {
            background: #facc15;
            color: #0f0f1a;
            font-weight: 700;
            padding: 14px 18px;
            text-align: left;
        }
        .data-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #2a2a44;
            color: #c8c8dd;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #1e1e36;
        }
        footer {
            background: #0a0a15;
            border-top: 3px solid #facc15;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        footer h4 {
            color: #facc15;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        footer p,
        footer li {
            color: #999;
            font-size: 0.9rem;
        }
        footer ul {
            list-style: none;
            padding: 0;
        }
        footer li {
            margin-bottom: 6px;
        }
        footer a {
            color: #bbb;
        }
        footer a:hover {
            color: #facc15;
        }
        .friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid #1e1e32;
            border-bottom: 1px solid #1e1e32;
            margin: 20px 0;
        }
        .friend-link h4 {
            font-size: 1rem;
            color: #facc15;
            margin-bottom: 10px;
        }
        .friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            list-style: none;
            padding: 0;
        }
        .friend-link li a {
            color: #bbb;
            font-size: 0.9rem;
        }
        .friend-link li a:hover {
            color: #facc15;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            font-size: 0.85rem;
            color: #666;
            border-top: 1px solid #1a1a2e;
        }
        .copyright strong {
            color: #999;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 30px;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a1a2e;
                padding: 16px 0 20px;
                border-radius: 0 0 20px 20px;
                margin-top: 12px;
                border-top: 1px solid #2a2a44;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 20px;
                border-radius: 0;
                border-bottom: 1px solid #2a2a44;
            }
            .nav-menu a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 14px;
            }
            .interactive-card {
                padding: 20px 16px;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0f0f1a;
        }
        ::-webkit-scrollbar-thumb {
            background: #facc15;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #ffdd44;
        }
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-8 {
            gap: 8px;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }