*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e, #1a2f44);
            color: #fff;
            padding: 16px 0;
            border-bottom: 4px solid #f4c542;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f4c542;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f4c542;
        }
        .my-logo i {
            font-size: 1.6rem;
            color: #6fc2ef;
        }
        .my-logo span {
            font-weight: 300;
            color: #b0d4f0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0edf7;
            padding: 8px 14px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #f4c542;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #f4c542;
            color: #0b1a2e;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 12px 0;
            font-size: 0.85rem;
            color: #4a5a6a;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #8899aa;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0066cc;
        }
        .breadcrumb .current {
            color: #2a3a4a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #e8edf5, #d5dee9);
            padding: 48px 0 40px;
            text-align: center;
            border-bottom: 1px solid #cdd7e2;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #0b1a2e;
            letter-spacing: -1px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .hero h1 i {
            color: #f4c542;
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 720px;
            margin: 0 auto;
            color: #2a4055;
        }
        .hero .last-updated {
            display: inline-block;
            margin-top: 16px;
            background: #fff;
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a5a6a;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            border: 1px solid #d0dae6;
        }
        .main-content {
            padding: 48px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .content-body h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: #0b1a2e;
            margin: 48px 0 16px;
            border-left: 6px solid #f4c542;
            padding-left: 20px;
        }
        .content-body h2:first-of-type {
            margin-top: 0;
        }
        .content-body h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1a2f44;
            margin: 36px 0 12px;
        }
        .content-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4055;
            margin: 28px 0 8px;
        }
        .content-body p {
            margin: 0 0 20px;
            color: #1e2a3a;
            font-size: 1.05rem;
        }
        .content-body ul,
        .content-body ol {
            margin: 0 0 24px 24px;
        }
        .content-body li {
            margin-bottom: 8px;
            font-size: 1.05rem;
        }
        .content-body blockquote {
            border-left: 4px solid #f4c542;
            background: #f0f4fa;
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2a4055;
        }
        .content-body .highlight-box {
            background: #edf3fa;
            border-radius: 16px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #d5e0ec;
        }
        .content-body .highlight-box strong {
            color: #0b1a2e;
        }
        .feature-img {
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            margin: 32px 0;
            width: 100%;
        }
        .content-body .inline-link {
            font-weight: 600;
            border-bottom: 2px solid #f4c542;
            padding-bottom: 2px;
        }
        .content-body .inline-link:hover {
            background: #f4c54220;
            text-decoration: none;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 28px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e6ecf4;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f4fa;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            color: #1a2f44;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card a:hover {
            color: #f4c542;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            gap: 8px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #d5e0ec;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: #f8fafc;
        }
        .search-form input:focus {
            border-color: #f4c542;
        }
        .search-form button {
            background: #0b1a2e;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0 24px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: #1a2f44;
        }
        .comment-area,
        .rating-area {
            background: #fff;
            border-radius: 16px;
            padding: 28px 32px;
            margin: 40px 0 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf4;
        }
        .comment-area h3,
        .rating-area h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px;
            border: 2px solid #d5e0ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
            transition: border 0.25s;
            background: #f8fafc;
        }
        .comment-form textarea:focus {
            border-color: #f4c542;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            margin-top: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .comment-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            border: 2px solid #d5e0ec;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #f8fafc;
            transition: border 0.25s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #f4c542;
            outline: none;
        }
        .comment-form button,
        .rating-form button {
            background: #f4c542;
            color: #0b1a2e;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #e0b02e;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 12px 0 16px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #d0d8e4;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f4c542;
            transform: scale(1.1);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rating-form .form-group {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #0b1a2e;
            color: #c8d6e0;
            padding: 48px 0 28px;
            margin-top: 48px;
            border-top: 4px solid #f4c542;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #f4c542;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col p,
        .footer-col li {
            font-size: 0.95rem;
            color: #b0c4d6;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col li {
            padding: 4px 0;
        }
        .footer-col a {
            color: #b0c4d6;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #f4c542;
            text-decoration: none;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            padding: 12px 16px;
            background: #112233;
            border-radius: 8px;
            font-size: 0.9rem;
            color: #b0c4d6;
        }
        friend-link a {
            color: #f4c542;
            font-weight: 500;
            margin: 0 4px;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            border-top: 1px solid #1a2f44;
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #8899aa;
        }
        .copyright strong {
            color: #c8d6e0;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #112233;
                padding: 16px 12px;
                border-radius: 12px;
                margin-top: 12px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                border-radius: 8px;
                width: 100%;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-body h2 {
                font-size: 1.6rem;
            }
            .content-body h3 {
                font-size: 1.25rem;
            }
            .container {
                padding: 0 16px;
            }
            .comment-area,
            .rating-area {
                padding: 20px 16px;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form input[type="text"] {
                width: 100%;
            }
            .rating-form .form-group {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
        }
        .text-muted {
            color: #5a6a7a;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .gap-2 {
            gap: 8px;
        }
        .fw-700 {
            font-weight: 700;
        }
        .fs-small {
            font-size: 0.9rem;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }