* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fb;
            color: #1a2634;
            line-height: 1.8;
            font-size: 16px;
        }
        a {
            color: #0052cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background: linear-gradient(135deg, #0b1a2e, #1a3a5c);
            padding: 16px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: linear-gradient(90deg, #f9d423, #ff4e50);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 14px;
            letter-spacing: 2px;
            -webkit-text-fill-color: #aaa;
            display: block;
            font-weight: 300;
        }
        .nav {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav a {
            color: #e0e8f0;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 30px;
            transition: 0.25s;
            font-size: 14px;
        }
        .nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 26px;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked~.nav {
            display: flex;
            flex-direction: column;
            width: 100%;
            margin-top: 16px;
            background: rgba(11, 26, 46, 0.95);
            padding: 16px 0;
            border-radius: 12px;
        }
        #nav-toggle:checked~.nav a {
            padding: 12px 20px;
            width: 100%;
            text-align: center;
        }
        .breadcrumb {
            background: #e9edf4;
            padding: 12px 0;
            font-size: 14px;
            color: #4a5a6a;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: #0052cc;
        }
        .breadcrumb span {
            color: #6a7a8a;
        }
        .main {
            padding: 40px 0;
        }
        .main .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .content {
            background: #fff;
            border-radius: 20px;
            padding: 40px 36px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .content h1 {
            font-size: 38px;
            font-weight: 800;
            color: #0b1a2e;
            margin-bottom: 8px;
            line-height: 1.2;
        }
        .content h1 i {
            color: #f9d423;
        }
        .content .last-updated {
            color: #7a8a9a;
            font-size: 14px;
            margin-bottom: 24px;
            display: block;
            border-bottom: 1px solid #eef2f7;
            padding-bottom: 16px;
        }
        .content h2 {
            font-size: 28px;
            font-weight: 700;
            color: #0f2a44;
            margin: 36px 0 14px 0;
            border-left: 5px solid #f9d423;
            padding-left: 16px;
        }
        .content h3 {
            font-size: 22px;
            font-weight: 600;
            color: #1a3a5c;
            margin: 28px 0 10px 0;
        }
        .content h4 {
            font-size: 18px;
            font-weight: 600;
            color: #2a4a6c;
            margin: 20px 0 8px 0;
        }
        .content p {
            margin-bottom: 18px;
            color: #2a3a4a;
        }
        .content .feature-img {
            margin: 28px 0;
            border-radius: 16px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .content ul,
        .content ol {
            margin: 12px 0 20px 30px;
            color: #2a3a4a;
        }
        .content li {
            margin-bottom: 6px;
        }
        .content strong {
            color: #0b1a2e;
        }
        .content .highlight-box {
            background: #f0f6ff;
            border-left: 4px solid #0052cc;
            padding: 18px 22px;
            border-radius: 10px;
            margin: 24px 0;
        }
        .content .highlight-box i {
            color: #0052cc;
            margin-right: 8px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #0b1a2e;
            border-bottom: 2px solid #f0f2f5;
            padding-bottom: 10px;
            margin-bottom: 14px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card li a {
            font-weight: 500;
            display: block;
            padding: 6px 0;
            border-bottom: 1px solid #f0f2f5;
        }
        .sidebar-card li a i {
            color: #f9d423;
            width: 20px;
        }
        .search-box {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            min-width: 140px;
            padding: 12px 16px;
            border: 2px solid #dde3ec;
            border-radius: 30px;
            font-size: 15px;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: #0052cc;
        }
        .search-box button {
            background: #0052cc;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-box button:hover {
            background: #003d99;
            transform: scale(1.02);
        }
        .comment-area {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 2px solid #eef2f7;
        }
        .comment-area h3 {
            font-size: 22px;
            margin-bottom: 16px;
        }
        .comment-area textarea {
            width: 100%;
            padding: 16px;
            border: 2px solid #dde3ec;
            border-radius: 12px;
            font-size: 15px;
            resize: vertical;
            min-height: 120px;
            font-family: inherit;
            transition: 0.2s;
        }
        .comment-area textarea:focus {
            border-color: #0052cc;
            outline: none;
        }
        .comment-area .row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
            margin-top: 14px;
        }
        .comment-area .row input {
            flex: 1;
            min-width: 160px;
            padding: 12px 16px;
            border: 2px solid #dde3ec;
            border-radius: 30px;
            font-size: 15px;
        }
        .comment-area .row input:focus {
            border-color: #0052cc;
            outline: none;
        }
        .comment-area .row button {
            background: #0b1a2e;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-area .row button:hover {
            background: #1a3a5c;
        }
        .rating-area {
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .rating-area .stars {
            font-size: 28px;
            color: #dde3ec;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-area .stars i {
            margin-right: 4px;
            transition: 0.2s;
        }
        .rating-area .stars i:hover,
        .rating-area .stars i.active {
            color: #f9d423;
        }
        .rating-area button {
            background: #ff6b00;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-area button:hover {
            background: #e55a00;
            transform: scale(1.02);
        }
        friend-link {
            display: block;
            background: #1a2a3a;
            color: #c0d0e0;
            padding: 32px 0;
            margin-top: 40px;
            border-top: 4px solid #f9d423;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }
        friend-link a {
            color: #e0e8f0;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
            transition: 0.2s;
            font-size: 14px;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .footer {
            background: #0b1a2e;
            color: #a0b0c0;
            padding: 28px 0;
            text-align: center;
            font-size: 14px;
        }
        .footer .container {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer a {
            color: #f9d423;
        }
        @media (max-width: 900px) {
            .main .container {
                grid-template-columns: 1fr;
            }
            .content {
                padding: 24px 18px;
            }
            .content h1 {
                font-size: 28px;
            }
            .hamburger {
                display: inline-block;
            }
            .nav {
                display: none;
                width: 100%;
            }
            .nav a {
                padding: 10px 12px;
                font-size: 15px;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 22px;
            }
            .sidebar {
                order: 2;
            }
        }
        @media (max-width: 480px) {
            .content h1 {
                font-size: 24px;
            }
            .content h2 {
                font-size: 22px;
            }
            .content h3 {
                font-size: 18px;
            }
            .breadcrumb {
                font-size: 12px;
                padding: 8px 0;
            }
            .search-box input,
            .search-box button {
                width: 100%;
            }
            .comment-area .row input,
            .comment-area .row button {
                width: 100%;
            }
            .rating-area {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .hidden-schema {
            display: none;
        }