*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f8f9fc;
            color: #1e2a3a;
            line-height: 1.8;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c84031;
            text-decoration: none;
            transition: color 0.2s, box-shadow 0.2s;
        }
        a:hover {
            color: #9e2b1f;
            box-shadow: 0 2px 0 #c84031;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: #0f1a2b;
        }
        h1 {
            font-size: 2.2rem;
            margin: 0 0 0.5rem;
        }
        h2 {
            font-size: 1.7rem;
            margin: 2.5rem 0 1rem;
            border-left: 5px solid #c84031;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.3rem;
            margin: 1.8rem 0 0.75rem;
            color: #2a3b4c;
        }
        h4 {
            font-size: 1.05rem;
            margin: 1.2rem 0 0.5rem;
            color: #3d4e5f;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        b,
        strong {
            color: #b33a2c;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f1a2b 0%, #1f2e44 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(to right, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd200;
            color: #ffd200;
            font-size: 1.6rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #aab;
            color: #aab;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .my-logo:hover {
            opacity: 0.9;
            box-shadow: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            color: #e8edf3;
            padding: 0.5rem 0.9rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.2s;
            display: block;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd200;
            box-shadow: none;
        }
        .nav-list li a.active {
            background: #c84031;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #ebeff5;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce2ec;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888fa0;
        }
        .breadcrumb a {
            color: #3d5a80;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .search-section {
            background: #fff;
            padding: 1.5rem 0;
            border-bottom: 2px solid #e9edf4;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 600px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce2ec;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
        }
        .search-form input:focus {
            border-color: #c84031;
            box-shadow: 0 0 0 4px rgba(200, 64, 49, 0.15);
        }
        .search-form button {
            background: #c84031;
            color: #fff;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #a82f22;
            transform: scale(1.02);
        }
        .main-content {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 2.2rem 2.5rem;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f8;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            border-left: 4px solid #c84031;
            padding-left: 0.7rem;
        }
        .sidebar-card ul {
            list-style: none;
            margin: 0.5rem 0 0;
            padding: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f3f8;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card li a {
            font-weight: 500;
        }
        .feature-img {
            margin: 2rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f8;
            text-align: center;
        }
        .feature-img img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #5a6a7a;
            background: #f6f9fe;
        }
        .rating-area {
            background: #f6f9fe;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e2e9f2;
        }
        .rating-area h3 {
            margin-top: 0;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            direction: rtl;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            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: #f5a623;
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            align-items: flex-end;
        }
        .rating-form button {
            background: #2a3b4c;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form button:hover {
            background: #0f1a2b;
        }
        .comments-section {
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf4;
        }
        .comments-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #dce2ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.25s;
        }
        .comment-form textarea:focus {
            border-color: #c84031;
            outline: none;
            box-shadow: 0 0 0 4px rgba(200, 64, 49, 0.1);
        }
        .comment-form .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin: 0.8rem 0;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 2px solid #dce2ec;
            border-radius: 40px;
            font-size: 0.95rem;
        }
        .comment-form .form-row input:focus {
            border-color: #c84031;
            outline: none;
        }
        .comment-form button {
            background: #c84031;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.15s;
        }
        .comment-form button:hover {
            background: #a82f22;
            transform: scale(1.02);
        }
        .site-footer {
            background: #0f1a2b;
            color: #bcc8d6;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 1.5rem;
        }
        .site-footer h4 {
            color: #ffd200;
            margin-top: 0;
            font-size: 1rem;
            letter-spacing: 0.5px;
        }
        .site-footer a {
            color: #bcc8d6;
        }
        .site-footer a:hover {
            color: #ffd200;
            box-shadow: none;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.3rem;
            font-size: 0.9rem;
        }
        .copyright {
            border-top: 1px solid #2a3b4c;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #7a8a9a;
        }
        .copyright strong {
            color: #ffd200;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1f2e44;
                border-radius: 16px;
                padding: 0.8rem 0.5rem;
                margin-top: 0.5rem;
                gap: 0.1rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-wrapper {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .article-body {
                padding: 1.5rem 1.2rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .rating-area {
                padding: 1.2rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                min-width: auto;
            }
            .search-form {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form input {
                min-width: auto;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .article-body {
                padding: 1rem 0.8rem;
                border-radius: 12px;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .text-sm {
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .highlight-box {
            background: #fef7e8;
            border-left: 5px solid #f5a623;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .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 #e2e9f2;
            text-align: left;
        }
        th {
            background: #f0f4fa;
            font-weight: 700;
            color: #0f1a2b;
        }
        tr:nth-child(even) {
            background: #fafcff;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }
        .last-update {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #e8edf5;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #3d5a80;
            font-weight: 500;
        }