*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #0b0e14;
            color: #e3e8ef;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #7ecfff;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: #b8e2ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #f0f4ff;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #f5a623;
            padding-left: 1rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 2px solid #2a3142;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #c8d6f0;
        }
        h4 {
            font-size: 1.2rem;
            color: #a8b9d9;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .text-muted {
            color: #8896b0;
        }
        .text-sm {
            font-size: 0.9rem;
        }
        .highlight {
            background: linear-gradient(120deg, #f5a62333, #f5a62311);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .badge {
            display: inline-block;
            background: #f5a623;
            color: #0b0e14;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .flex {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .flex-col {
            flex-direction: column;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .site-header {
            background: #121821;
            border-bottom: 3px solid #f5a623;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            background: rgba(12, 15, 22, 0.97);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f5a623, #f7c948);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f5a623;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: initial;
            color: #8896b0;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            color: #c8d6f0;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #f5a62322;
            color: #f5a623;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #e3e8ef;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            transition: transform 0.2s;
        }
        .hamburger:active {
            transform: scale(0.92);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.6rem;
            padding: 1rem 0 0.5rem;
            font-size: 0.85rem;
            color: #8896b0;
        }
        .breadcrumb a {
            color: #7ecfff;
        }
        .breadcrumb a:hover {
            color: #b8e2ff;
        }
        .breadcrumb .sep {
            color: #4a5568;
            font-weight: 300;
        }
        .card {
            background: #171f2b;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            border: 1px solid #2a3142;
            transition: box-shadow 0.3s, transform 0.2s;
        }
        .card:hover {
            box-shadow: 0 8px 30px rgba(245, 166, 35, 0.06);
        }
        .card-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #f0f4ff;
        }
        .card-title i {
            color: #f5a623;
            margin-right: 0.6rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s, box-shadow 0.25s;
            background: #2a3142;
            color: #e3e8ef;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.15);
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, #f5a623, #e8971a);
            color: #0b0e14;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #f7b840, #f5a623);
            color: #0b0e14;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #f5a623;
            color: #f5a623;
        }
        .btn-outline:hover {
            background: #f5a623;
            color: #0b0e14;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 560px;
            margin: 1.5rem 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1.2rem;
            border-radius: 40px;
            border: 2px solid #2a3142;
            background: #0b0e14;
            color: #e3e8ef;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-form input:focus {
            border-color: #f5a623;
        }
        .search-form button {
            padding: 0.75rem 1.6rem;
            border-radius: 40px;
            border: none;
            background: #f5a623;
            color: #0b0e14;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.25s;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #f7c948;
        }
        .comment-box,
        .rating-box {
            background: #171f2b;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            border: 1px solid #2a3142;
            margin-top: 2rem;
        }
        .comment-box textarea,
        .rating-box textarea {
            width: 100%;
            padding: 1rem;
            border-radius: 12px;
            border: 2px solid #2a3142;
            background: #0b0e14;
            color: #e3e8ef;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.3s;
            font-family: inherit;
        }
        .comment-box textarea:focus,
        .rating-box textarea:focus {
            border-color: #f5a623;
        }
        .comment-box .form-row,
        .rating-box .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
            align-items: center;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #4a5568;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5a623;
            transform: scale(1.1);
        }
        .site-footer {
            background: #0f141e;
            border-top: 2px solid #1f2838;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer h4 {
            color: #f0f4ff;
            margin-top: 0;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #8896b0;
            display: block;
            padding: 0.25rem 0;
            font-size: 0.92rem;
        }
        .site-footer a:hover {
            color: #f5a623;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid #1f2838;
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #5a6a82;
        }
        .footer-bottom .copy-sign {
            color: #f5a623;
        }
        friend-link {
            display: block;
            margin-top: 1rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            padding: 0.3rem 0;
        }
        .toc {
            background: #171f2b;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            border: 1px solid #2a3142;
            margin-bottom: 2.5rem;
        }
        .toc h3 {
            margin-top: 0;
            color: #f5a623;
        }
        .toc ol {
            counter-reset: toc-counter;
            list-style: none;
            padding-left: 0;
        }
        .toc ol li {
            counter-increment: toc-counter;
            padding: 0.3rem 0;
            border-bottom: 1px dashed #1f2838;
        }
        .toc ol li::before {
            content: counter(toc-counter) ". ";
            color: #f5a623;
            font-weight: 700;
            margin-right: 0.4rem;
        }
        .toc ol li a {
            color: #c8d6f0;
        }
        .toc ol li a:hover {
            color: #f5a623;
        }
        .hero-img {
            border-radius: 18px;
            margin: 2rem 0;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
            width: 100%;
        }
        @media (max-width: 992px) {
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #121821;
                padding: 1rem 0;
                border-radius: 16px;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-radius: 8px;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .comment-box,
            .rating-box {
                padding: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            .card {
                padding: 1rem;
            }
            h1 {
                font-size: 1.4rem;
                padding-left: 0.7rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .items-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }
        .w-full {
            width: 100%;
        }
        .op-7 {
            opacity: 0.7;
        }
        .rounded-full {
            border-radius: 9999px;
        }
        .bg-accent {
            background: #f5a623;
            color: #0b0e14;
        }
        .inline-flex {
            display: inline-flex;
            align-items: center;
        }
        .no-underline:hover {
            text-decoration: none;
        }