*,
        *::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, sans-serif;
            background: #faf9f6;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #b45309;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus-visible {
            color: #7c2d12;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
            color: #1e293b;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.75rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.35rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: #1e293b;
            color: #f1f5f9;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fbbf24;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #fbbf24;
            font-size: 1.4rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            flex-wrap: wrap;
            padding: 0;
        }
        .nav-list li a {
            display: block;
            padding: 0.4rem 0.9rem;
            border-radius: 6px;
            color: #e2e8f0;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #334155;
            color: #fbbf24;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f1f5f9;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #334155;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            padding: 0;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #b45309;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        .main-content {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .article-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #475569;
            font-style: italic;
        }
        .link-highlight {
            background: #fffbeb;
            border-left: 4px solid #f59e0b;
            padding: 0.8rem 1.2rem;
            margin: 1.2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .interactive-section {
            margin: 2.5rem 0;
            padding: 1.8rem;
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
        }
        .interactive-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 0.5rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .search-form button,
        .comment-form button,
        .score-form button {
            padding: 0.7rem 1.6rem;
            background: #b45309;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover,
        .comment-form button:hover,
        .score-form button:hover {
            background: #92400e;
            transform: translateY(-1px);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-bottom: 0.6rem;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 140px;
            padding: 0.6rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 0.9rem;
        }
        .comment-form .form-row input:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .score-form .star-group {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
            margin: 0.4rem 0 0.8rem;
        }
        .score-form .star-group i.active {
            color: #f59e0b;
        }
        .score-form .star-group i:hover,
        .score-form .star-group i.hover {
            color: #fbbf24;
        }
        .score-form input[type="hidden"] {
            display: none;
        }
        .sidebar-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 1.4rem;
            margin-bottom: 1.5rem;
            border: 1px solid #e2e8f0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h4 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar-link-list li {
            padding: 0.45rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-link-list li:last-child {
            border-bottom: none;
        }
        .sidebar-link-list a {
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .sidebar-link-list a i {
            font-size: 0.7rem;
            color: #b45309;
        }
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer h4 {
            color: #fbbf24;
            margin-top: 0;
            font-size: 1.05rem;
        }
        .site-footer a {
            color: #cbd5e1;
        }
        .site-footer a:hover {
            color: #fbbf24;
            text-decoration: none;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            padding: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 1.2rem;
            margin-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #94a3b8;
        }
        .copyright strong {
            color: #e2e8f0;
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e293b;
                padding: 0.5rem 0;
                border-radius: 0 0 12px 12px;
                margin-top: 0.5rem;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .nav-wrapper {
                flex-wrap: wrap;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .interactive-section {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .search-form {
                flex-direction: column;
            }
            .search-form input[type="text"] {
                min-width: unset;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .container {
                padding: 0 0.9rem;
            }
        }
        @media print {
            .site-header {
                position: static;
            }
            .sidebar,
            .interactive-section,
            .site-footer {
                break-inside: avoid;
            }
        }