*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #0d0f14;
            color: #e4e6eb;
            line-height: 1.75;
            padding: 0 1rem;
            max-width: 1320px;
            margin: 0 auto;
            min-height: 100vh;
        }
        a {
            color: #f0c15a;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #f7d98a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 600;
            letter-spacing: 0.01em;
            color: #f5f7fa;
        }
        h1 {
            font-size: 2.4rem;
            margin: 2rem 0 1rem;
            border-left: 6px solid #f0c15a;
            padding-left: 1.2rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.6rem 0 1rem;
            border-bottom: 2px solid #2a2e38;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.8rem;
            color: #f0c15a;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.5rem;
            color: #d4d8e0;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            padding: 0 0.5rem;
        }
        .btn {
            display: inline-block;
            background: #f0c15a;
            color: #0d0f14;
            padding: 0.55rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
        }
        .btn:hover {
            background: #f7d98a;
            transform: scale(1.02);
            text-decoration: none;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #f0c15a;
            color: #f0c15a;
        }
        .btn-outline:hover {
            background: #f0c15a;
            color: #0d0f14;
        }
        header {
            padding: 1.2rem 0 0.6rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #2a2e38;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            background: linear-gradient(135deg, #f0c15a, #d9a74a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.8rem;
            -webkit-text-fill-color: #8a8f9a;
            display: block;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        nav.main-nav {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        nav.main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #c8ccd6;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        nav.main-nav a:hover {
            border-bottom-color: #f0c15a;
            color: #f5f7fa;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #e4e6eb;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #1f232b;
        }
        .nav-mobile {
            display: none;
            width: 100%;
            flex-direction: column;
            gap: 0.6rem;
            padding: 1rem 0 0.6rem;
            background: #14181f;
            border-radius: 12px;
            margin-top: 0.6rem;
        }
        .nav-mobile a {
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 500;
        }
        .nav-mobile a:hover {
            background: #1f232b;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #8a8f9a;
        }
        .breadcrumb a {
            color: #b0b4be;
        }
        .breadcrumb a:hover {
            color: #f0c15a;
        }
        .breadcrumb .sep {
            color: #555a66;
        }
        .search-box {
            display: flex;
            gap: 0.4rem;
            max-width: 520px;
            margin: 1.8rem 0;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border-radius: 40px;
            border: 1px solid #2f3542;
            background: #1a1e26;
            color: #e4e6eb;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
            min-width: 160px;
        }
        .search-box input:focus {
            border-color: #f0c15a;
        }
        .search-box button {
            border-radius: 40px;
            padding: 0.7rem 1.6rem;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.6rem;
            margin: 2rem 0;
        }
        .card {
            background: #161a22;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #262c38;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
        }
        .card i {
            color: #f0c15a;
            font-size: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .card h3 {
            margin-top: 0.2rem;
        }
        .feature-highlight {
            background: linear-gradient(145deg, #1a1f2a, #0f131c);
            border-radius: 20px;
            padding: 2rem 2rem 2.2rem;
            margin: 2.4rem 0;
            border-left: 6px solid #f0c15a;
        }
        .feature-highlight h3 {
            margin-top: 0;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.8rem 0;
            background: #14181f;
            border-radius: 20px;
            padding: 2rem 1.8rem;
            border: 1px solid #262c38;
        }
        .feedback-section form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-section label {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .feedback-section input,
        .feedback-section textarea,
        .feedback-section select {
            padding: 0.65rem 1rem;
            border-radius: 10px;
            border: 1px solid #2f3542;
            background: #1a1e26;
            color: #e4e6eb;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            width: 100%;
        }
        .feedback-section input:focus,
        .feedback-section textarea:focus,
        .feedback-section select:focus {
            border-color: #f0c15a;
        }
        .feedback-section textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-section .star-select {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #3a3f4b;
            cursor: pointer;
        }
        .feedback-section .star-select i.active {
            color: #f0c15a;
        }
        .feedback-section .star-select i:hover,
        .feedback-section .star-select i.hover {
            color: #f7d98a;
        }
        friend-link {
            display: block;
            padding: 1.8rem 0 1.2rem;
            border-top: 1px solid #2a2e38;
            margin-top: 2.4rem;
        }
        friend-link h3 {
            font-size: 1.15rem;
            margin-bottom: 0.8rem;
            color: #c8ccd6;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1.2rem 0.3rem 0;
            font-size: 0.95rem;
        }
        footer {
            padding: 2rem 0 2.2rem;
            font-size: 0.9rem;
            color: #6e7380;
            border-top: 1px solid #1f232b;
            margin-top: 2rem;
            text-align: center;
        }
        footer .copyright {
            margin-top: 0.8rem;
            font-size: 0.85rem;
        }
        .toc {
            background: #161a22;
            border-radius: 16px;
            padding: 1.6rem 2rem;
            margin: 2rem 0;
            border: 1px solid #262c38;
        }
        .toc ol {
            columns: 2 260px;
            column-gap: 2rem;
            list-style: none;
            counter-reset: toc-counter;
        }
        .toc li {
            counter-increment: toc-counter;
            margin-bottom: 0.5rem;
            break-inside: avoid;
        }
        .toc li::before {
            content: counter(toc-counter) ". ";
            color: #f0c15a;
            font-weight: 600;
            margin-right: 0.3rem;
        }
        .toc a {
            color: #c8ccd6;
        }
        .toc a:hover {
            color: #f0c15a;
        }
        .img-wrap {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #11151d;
            padding: 0.6rem;
            border: 1px solid #262c38;
        }
        .img-wrap img {
            width: 100%;
            border-radius: 10px;
        }
        .img-wrap figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: #8a8f9a;
            padding: 0.6rem 0 0.2rem;
            font-style: italic;
        }
        .interview-block {
            background: #0f131c;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border-left: 5px solid #f0c15a;
            font-style: italic;
            color: #d0d4de;
        }
        .interview-block strong {
            color: #f0c15a;
            font-style: normal;
        }
        @media (max-width: 860px) {
            .feedback-section {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .toc ol {
                columns: 1;
            }
            h1 {
                font-size: 1.9rem;
                padding-left: 0.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 700px) {
            .hamburger {
                display: inline-block;
            }
            .main-nav.desktop {
                display: none;
            }
            .nav-mobile.open {
                display: flex;
            }
            header {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo small {
                font-size: 0.65rem;
            }
            .search-box input {
                min-width: 120px;
            }
        }
        @media (min-width: 701px) {
            .nav-mobile {
                display: none !important;
            }
            .main-nav.desktop {
                display: flex;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.6rem;
            }
            .feature-highlight {
                padding: 1.2rem 1rem;
            }
            .feedback-section {
                padding: 1.2rem 1rem;
            }
            .card {
                padding: 1.2rem 1rem;
            }
            .toc {
                padding: 1rem 1.2rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0d0f14;
        }
        ::-webkit-scrollbar-thumb {
            background: #2f3542;
            border-radius: 20px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #3f4656;
        }
        .badge {
            display: inline-block;
            background: #f0c15a20;
            color: #f0c15a;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid #f0c15a40;
        }
        .stat-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2.4rem;
            margin: 1.2rem 0;
        }
        .stat-row .stat {
            font-size: 0.95rem;
        }
        .stat-row .stat strong {
            color: #f0c15a;
        }
        hr {
            border: none;
            border-top: 1px solid #262c38;
            margin: 2rem 0;
        }
        .author-eeat {
            display: flex;
            gap: 1rem;
            align-items: center;
            background: #161a22;
            border-radius: 14px;
            padding: 1.2rem 1.6rem;
            margin: 1.8rem 0;
            flex-wrap: wrap;
            border: 1px solid #262c38;
        }
        .author-eeat img {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid #f0c15a;
        }
        .author-eeat .info {
            flex: 1;
        }
        .author-eeat .info strong {
            color: #f5f7fa;
            font-size: 1.05rem;
        }
        .author-eeat .info span {
            color: #8a8f9a;
            font-size: 0.85rem;
        }