*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f4f7fc;
            color: #1a1f2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1565c0;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0d47a1;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #0b1a2e;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.5rem;
            border-bottom: 3px solid #e53935;
            display: inline-block;
            padding-bottom: 0.2rem;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid #e53935;
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1a3a5c;
        }
        h4 {
            font-size: 1.2rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2e 0%, #1a2f4a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ffd54f, #ff8f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(255, 213, 79, 0.2);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ffd54f;
            font-size: 2rem;
        }
        .my-logo a {
            text-decoration: none;
            -webkit-text-fill-color: transparent;
            background: inherit;
            -webkit-background-clip: text;
            background-clip: text;
        }
        .my-logo a:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .main-nav li a {
            color: #e0e7f0;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.25s, color 0.25s;
            display: block;
        }
        .main-nav li a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .main-nav li a i {
            margin-right: 0.3rem;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e8edf4;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d8e4;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #7a8aa0;
        }
        .breadcrumb a {
            color: #2c4a6e;
        }
        .breadcrumb span {
            color: #5a6a7e;
        }
        .hero {
            background: linear-gradient(135deg, #0d2137, #1a3a5c);
            color: #fff;
            padding: 3.5rem 0 3rem;
            text-align: center;
            border-bottom: 4px solid #e53935;
        }
        .hero h1 {
            color: #ffd54f;
            border-bottom: none;
            font-size: 3.2rem;
            margin-bottom: 0.5rem;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .hero p {
            font-size: 1.25rem;
            max-width: 750px;
            margin: 0.5rem auto 1.5rem;
            opacity: 0.92;
        }
        .hero .last-updated {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #b0cce0;
        }
        .search-section {
            background: #fff;
            padding: 2rem 0;
            border-bottom: 1px solid #dce3ec;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #d0d8e4;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1.5rem;
            border: none;
            font-size: 1rem;
            background: #f9fbfd;
            outline: none;
        }
        .search-form button {
            background: #e53935;
            color: #fff;
            border: none;
            padding: 0 2rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #c62828;
        }
        .main-content {
            padding: 2.5rem 0 4rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-body {
            background: #fff;
            border-radius: 24px;
            padding: 2.5rem 3rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .content-body .featured-image {
            border-radius: 16px;
            margin: 1.8rem 0 2.5rem;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            width: 100%;
            object-fit: cover;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 18px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f7;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #e53935;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f2f6;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
        }
        .rating-area {
            background: #fef9f0;
            border-radius: 16px;
            padding: 1.8rem;
            margin: 2rem 0;
            border: 1px solid #f0e4d0;
        }
        .rating-area h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin: 0.8rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb300;
        }
        .rating-form button {
            background: #e53935;
            color: #fff;
            border: none;
            padding: 0.6rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 0.5rem;
        }
        .rating-form button:hover {
            background: #c62828;
        }
        .comments-area {
            background: #f8faff;
            border-radius: 16px;
            padding: 1.8rem;
            margin: 2rem 0;
            border: 1px solid #dce3ec;
        }
        .comments-area h3 {
            margin-top: 0;
        }
        .comment-list {
            max-height: 320px;
            overflow-y: auto;
            margin: 1rem 0;
            background: #fff;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            border: 1px solid #eef2f7;
        }
        .comment-item {
            padding: 0.8rem 0;
            border-bottom: 1px solid #f0f2f6;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item strong {
            color: #0b1a2e;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #7a8aa0;
            margin-left: 0.8rem;
        }
        .comments-area textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #d0d8e4;
            border-radius: 12px;
            font-size: 1rem;
            resize: vertical;
            min-height: 80px;
            font-family: inherit;
            background: #fff;
        }
        .comments-area .comment-btn {
            background: #1565c0;
            color: #fff;
            border: none;
            padding: 0.6rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 0.5rem;
        }
        .comments-area .comment-btn:hover {
            background: #0d47a1;
        }
        friend-link {
            display: block;
            background: #1a2f4a;
            color: #d0dce8;
            padding: 2rem 0;
            border-top: 4px solid #e53935;
            margin-top: 3rem;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2.5rem;
            justify-content: center;
        }
        friend-link a {
            color: #b0cce0;
            font-weight: 500;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            transition: background 0.2s, color 0.2s;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffd54f;
            text-decoration: none;
        }
        .site-footer {
            background: #0b1a2e;
            color: #a0b4c8;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid #1a2f4a;
        }
        .site-footer .copyright {
            opacity: 0.8;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 820px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease, padding 0.3s ease;
                padding: 0;
            }
            .nav-toggle:checked~.nav-wrapper {
                max-height: 500px;
                padding: 1rem 0 0.5rem;
            }
            .main-nav {
                flex-direction: column;
                gap: 0.2rem;
            }
            .main-nav li a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .content-body {
                padding: 1.5rem 1.2rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                border-radius: 20px;
            }
            .search-form input {
                border-radius: 20px 20px 0 0;
            }
            .search-form button {
                border-radius: 0 0 20px 20px;
                justify-content: center;
                padding: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-body {
                padding: 1rem 0.8rem;
                border-radius: 16px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            .rating-area,
            .comments-area {
                padding: 1.2rem;
            }
            .star-rating label {
                font-size: 1.6rem;
            }
        }
        .comment-list::-webkit-scrollbar {
            width: 6px;
        }
        .comment-list::-webkit-scrollbar-track {
            background: #f0f2f6;
            border-radius: 4px;
        }
        .comment-list::-webkit-scrollbar-thumb {
            background: #b0c0d0;
            border-radius: 4px;
        }
        .author-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #eef2f7;
            padding: 0.3rem 1.2rem 0.3rem 0.8rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #1a2f4a;
            margin-bottom: 1.2rem;
        }
        .author-badge i {
            color: #e53935;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 4px solid #1565c0;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #dce3ec;
            text-align: left;
        }
        th {
            background: #1a2f4a;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8faff;
        }
        .stat-big {
            font-size: 2.2rem;
            font-weight: 800;
            color: #e53935;
            line-height: 1.2;
        }
        .glossary-term {
            font-weight: 600;
            color: #0b1a2e;
        }