*,
        *::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', Arial, sans-serif;
            background: #f5f7fb;
            color: #1e293b;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1a6dd4;
            text-decoration: none;
            transition: color 0.2s, opacity 0.2s;
        }
        a:hover {
            color: #0e4a8a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a4a 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #facc15;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #fbbf24;
        }
        .my-logo i {
            font-size: 2rem;
            color: #4ade80;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 24px;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            color: #facc15;
            border-bottom-color: #facc15;
            text-decoration: none;
        }
        .breadcrumb-wrap {
            background: #eef2f7;
            padding: 10px 0;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            color: #4a5b6e;
        }
        .breadcrumb a {
            color: #1a6dd4;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .separator {
            color: #94a3b8;
            margin: 0 4px;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 40px 36px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 12px;
            color: #0b1a2e;
        }
        .article-body .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            font-size: 0.9rem;
            color: #5e6f88;
            border-bottom: 1px solid #e9edf4;
            padding-bottom: 18px;
            margin-bottom: 28px;
        }
        .meta-info i {
            margin-right: 6px;
        }
        .meta-info .update-date {
            font-weight: 600;
            color: #1e293b;
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #0f1f33;
            border-left: 5px solid #facc15;
            padding-left: 18px;
        }
        .article-body h3 {
            font-size: 1.45rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #1a2e44;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #2c4058;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #1e2a3a;
        }
        .article-body ul,
        .article-body ol {
            margin: 14px 0 20px 28px;
        }
        .article-body li {
            margin-bottom: 10px;
            font-size: 1.05rem;
        }
        .article-body .featured-image {
            margin: 30px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .article-body .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .article-body .featured-image figcaption {
            background: #f1f5f9;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #3b4d63;
            font-style: italic;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 4px solid #1a6dd4;
            padding: 20px 24px;
            border-radius: 10px;
            margin: 28px 0;
        }
        .highlight-box strong {
            color: #0b1a2e;
        }
        .insight-card {
            background: #faf8f0;
            border: 1px solid #f0e9d6;
            border-radius: 14px;
            padding: 22px 26px;
            margin: 28px 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }
        .insight-card h4 {
            margin-top: 0;
            color: #7c4a1a;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #edf2f9;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #0b1a2e;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: #facc15;
        }
        .link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .link-list li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f3f8;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: block;
            padding: 4px 0;
            font-weight: 500;
        }
        .link-list a:hover {
            padding-left: 4px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #1a6dd4;
        }
        .search-form button {
            background: #1a6dd4;
            color: #fff;
            border: none;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #0e4a8a;
            transform: scale(1.02);
        }
        .comment-section,
        .rating-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #e9edf4;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-bottom: 18px;
        }
        .comment-form textarea,
        .rating-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #dce3ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus,
        .rating-form textarea:focus {
            border-color: #1a6dd4;
        }
        .comment-form input[type="text"],
        .rating-form input[type="text"] {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            margin-bottom: 12px;
        }
        .comment-form input[type="text"]:focus,
        .rating-form input[type="text"]:focus {
            border-color: #1a6dd4;
        }
        .comment-form .form-row,
        .rating-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .comment-form .form-row input,
        .rating-form .form-row input {
            flex: 1;
            margin-bottom: 0;
        }
        .btn-submit {
            background: #1a6dd4;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-submit:hover {
            background: #0e4a8a;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d1d9e6;
            cursor: pointer;
            margin-bottom: 14px;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #facc15;
            transform: scale(1.1);
        }
        .star-rating.active i.active {
            color: #facc15;
        }
        .site-footer {
            background: #0b1a2e;
            color: #cbd5e1;
            padding: 48px 0 32px;
            border-top: 4px solid #facc15;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #f1f5f9;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col p {
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .footer-col .link-list a {
            color: #a3b8d0;
            font-weight: 400;
            padding: 3px 0;
        }
        .footer-col .link-list a:hover {
            color: #facc15;
            padding-left: 4px;
        }
        friend-link {
            display: block;
            padding: 16px 0 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 20px;
        }
        friend-link .fl-title {
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            padding: 0;
        }
        friend-link .fl-list li {
            display: inline;
        }
        friend-link .fl-list a {
            color: #a3b8d0;
            font-size: 0.9rem;
        }
        friend-link .fl-list a:hover {
            color: #facc15;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: #8a9bb0;
            margin-top: 16px;
        }
        .copyright a {
            color: #a3b8d0;
        }
        .copyright a:hover {
            color: #facc15;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 10px;
                padding: 18px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 12px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                font-size: 1.05rem;
                padding: 8px 0;
            }
            .article-body {
                padding: 24px 18px;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .comment-form .form-row,
            .rating-form .form-row {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body {
                padding: 16px 12px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #eef2f7;
        }
        ::-webkit-scrollbar-thumb {
            background: #b5c4d6;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #8fa0b9;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }