*,
        *::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', Arial, sans-serif;
            line-height: 1.7;
            color: #1e1e2a;
            background: #f8f9fc;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #2a5c8a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1a3a5a;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.8rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #12121c;
            margin-top: 0;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.6rem;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            margin-top: 2.4rem;
            border-bottom: 3px solid #e0e5ee;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.2rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0f1a2e, #1a2d4a);
            color: #f0f4fa;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: #f0e6d0;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none;
            color: #f0e6d0;
        }
        .my-logo span {
            color: #fdca6a;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #dce6f0;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #eef1f7;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1ec;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #7f8fa0;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2a5c8a;
        }
        .breadcrumb .current {
            color: #4a5568;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #1a2d4a 0%, #243b5e 100%);
            color: #f0f4fa;
            padding: 3rem 0 2.6rem;
            text-align: center;
            position: relative;
        }
        .hero h1 {
            color: #fff;
            font-size: 3rem;
            margin-bottom: 0.6rem;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 780px;
            margin: 0 auto 1.2rem;
            opacity: 0.88;
        }
        .hero .status-badge {
            display: inline-block;
            background: #2ecc71;
            color: #fff;
            padding: 0.4rem 1.6rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 4px 14px rgba(46, 204, 113, 0.4);
        }
        .hero .status-badge i {
            margin-right: 0.5rem;
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            border-bottom: 1px solid #e2e7f0;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            max-width: 640px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1 1 200px;
            padding: 0.7rem 1.2rem;
            border: 2px solid #dce1ec;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #2a5c8a;
        }
        .search-form button {
            background: #2a5c8a;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #1a3a5a;
            transform: scale(1.02);
        }
        .search-form button i {
            margin-right: 0.4rem;
        }
        .main-content {
            padding: 2.4rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.4rem;
        }
        .article-body {
            background: #fff;
            border-radius: 18px;
            padding: 2rem 2.4rem;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.04);
        }
        .article-body figure {
            margin: 1.8rem 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .article-body figure img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .article-body figure figcaption {
            background: #f1f4fa;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            color: #3d4a5c;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.4rem 1.6rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #eaedf4;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border-bottom: 2px solid #e8ecf4;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.3rem 0;
            border-bottom: 1px dashed #eef1f7;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .sidebar-card a i {
            color: #2a5c8a;
            width: 1.2rem;
            text-align: center;
        }
        .rating-area,
        .comment-area {
            margin-top: 2.4rem;
            padding-top: 1.8rem;
            border-top: 2px solid #eaedf4;
        }
        .rating-area h3,
        .comment-area h3 {
            margin-top: 0;
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.8rem;
            color: #d1d8e3;
            cursor: pointer;
            direction: rtl;
            unicode-bidi: bidi-override;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #d1d8e3;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .rating-form button,
        .comment-form button {
            background: #2a5c8a;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 0.6rem;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #1a3a5a;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dce1ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #2a5c8a;
            outline: none;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.6rem 1rem;
            border: 2px solid #dce1ec;
            border-radius: 40px;
            font-size: 1rem;
            margin-bottom: 0.6rem;
            transition: border 0.2s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #2a5c8a;
            outline: none;
        }
        .site-footer {
            background: #0f1a2e;
            color: #c8d2e0;
            padding: 2.4rem 0 1.2rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer h4 {
            color: #f0e6d0;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #b0c4dd;
        }
        .site-footer a:hover {
            color: #fdca6a;
        }
        .friend-link {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }
        .friend-link a {
            font-size: 0.9rem;
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #2a3d5a;
            padding-top: 1.2rem;
            margin-top: 0.8rem;
            text-align: center;
            font-size: 0.85rem;
            color: #8899b0;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 0.8rem;
                background: rgba(15, 26, 46, 0.95);
                border-radius: 12px;
                padding: 0.6rem 0;
                gap: 0.1rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1.2rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .hero {
                padding: 2rem 0 1.6rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }
        .highlight {
            background: #fcf3e0;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .btn {
            display: inline-block;
            background: #2a5c8a;
            color: #fff;
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #1a3a5a;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #2a5c8a;
            color: #2a5c8a;
        }
        .btn-outline:hover {
            background: #2a5c8a;
            color: #fff;
        }
        .last-updated {
            display: block;
            text-align: right;
            font-size: 0.85rem;
            color: #7f8fa0;
            margin-top: 1.6rem;
            padding-top: 0.6rem;
            border-top: 1px solid #eaedf4;
        }
        .last-updated i {
            margin-right: 0.3rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
        }
        th,
        td {
            padding: 0.6rem 1rem;
            border: 1px solid #dce1ec;
            text-align: left;
        }
        th {
            background: #eef1f7;
            font-weight: 700;
        }
        .toc {
            background: #f1f4fa;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin-bottom: 1.8rem;
            border-left: 5px solid #2a5c8a;
        }
        .toc ol {
            margin-bottom: 0;
        }
        .toc a {
            font-weight: 500;
        }