*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c4055;
            --accent: #f0c040;
            --accent-dark: #d4a830;
            --bg: #f7f4ef;
            --card-bg: #ffffff;
            --text: #2d2d2d;
            --text-light: #5a5a5a;
            --border: #e0dcd4;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-bg: linear-gradient(145deg, #0e1a26 0%, #1a2a3a 100%);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--header-bg);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent);
            text-transform: uppercase;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            color: var(--accent);
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 300;
            color: #b0c4d8;
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e0e8f0;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(240, 192, 64, 0.15);
            color: var(--accent);
        }
        .nav-menu a.active {
            background: var(--accent);
            color: #1a2a3a;
            font-weight: 600;
        }
        .breadcrumb {
            background: #eae7e0;
            padding: 10px 0;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--accent-dark);
        }
        .breadcrumb .sep {
            color: #aaa;
            font-size: 0.7rem;
        }
        .hero {
            padding: 40px 0 24px;
            background: linear-gradient(180deg, #e8e4dc 0%, var(--bg) 100%);
        }
        .hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .hero .meta {
            color: var(--text-light);
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-top: 6px;
        }
        .hero .meta i {
            margin-right: 4px;
            color: var(--accent-dark);
        }
        .hero .updated {
            background: var(--accent);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.8rem;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 32px 0 60px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        .section-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin-bottom: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: box-shadow 0.2s;
        }
        .section-card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .section-card h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .section-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 24px;
            margin-bottom: 10px;
        }
        .section-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 18px;
            margin-bottom: 6px;
        }
        .section-card p,
        .section-card li {
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-card ul,
        .section-card ol {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        .section-card li {
            margin-bottom: 6px;
        }
        .section-card .highlight-box {
            background: #fcf8f0;
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 18px 0;
        }
        .section-card .emoji-big {
            font-size: 1.8rem;
            margin-right: 6px;
        }
        .feature-image {
            margin: 20px 0 24px;
            border-radius: var(--radius);
            overflow: hidden;
            background: #eae7e0;
        }
        .feature-image img {
            width: 100%;
            object-fit: cover;
        }
        .feature-image figcaption {
            padding: 8px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            background: #f4f1ec;
            font-style: italic;
        }
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px 22px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
        }
        .sidebar-widget ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-widget li {
            padding: 6px 0;
            border-bottom: 1px solid #f0ece6;
        }
        .sidebar-widget li a {
            font-weight: 500;
        }
        .sidebar-widget li i {
            margin-right: 8px;
            color: var(--accent-dark);
            width: 18px;
            text-align: center;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: var(--accent);
        }
        .search-form button {
            background: var(--accent);
            border: none;
            border-radius: 30px;
            padding: 10px 18px;
            color: var(--primary);
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: var(--accent-dark);
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            outline: none;
            transition: border 0.2s;
            background: #fafaf8;
        }
        .comment-form textarea:focus {
            border-color: var(--accent);
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            margin-top: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
        }
        .comment-form .form-row input:focus {
            border-color: var(--accent);
        }
        .comment-form .form-row button {
            background: var(--primary-light);
            border: none;
            border-radius: 30px;
            padding: 10px 24px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form .form-row button:hover {
            background: var(--primary);
        }
        .score-group {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            margin: 8px 0 12px;
        }
        .score-group i {
            transition: color 0.15s;
        }
        .score-group i:hover,
        .score-group i.hovered {
            color: var(--accent);
        }
        .score-group i.selected {
            color: var(--accent-dark);
        }
        .score-form button {
            background: var(--accent);
            border: none;
            border-radius: 30px;
            padding: 8px 20px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            color: var(--primary);
        }
        .score-form button:hover {
            background: var(--accent-dark);
        }
        .site-footer {
            background: var(--primary);
            color: #d0d8e0;
            padding: 40px 0 24px;
            margin-top: 20px;
        }
        .site-footer .container {
            max-width: var(--max-width);
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .footer-grid a {
            color: #b0c4d8;
            display: block;
            padding: 3px 0;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: var(--accent);
        }
        .footer-grid friend-link {
            display: block;
        }
        .footer-grid friend-link a {
            display: inline-block;
            padding: 4px 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.85rem;
            color: #8899aa;
        }
        .footer-bottom a {
            color: #b0c4d8;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 992px) {
            .page-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 16px;
                border-radius: 8px;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .section-card {
                padding: 20px 18px;
            }
            .section-card h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .header-inner {
                padding: 0 16px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.4rem;
            }
            .section-card {
                padding: 16px 14px;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                width: 100%;
                min-width: unset;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        .schema-hidden {
            display: none;
        }
        .inline-icon {
            margin-right: 6px;
            color: var(--accent-dark);
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 0 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 12px;
            margin: 16px 0;
        }
        .stats-grid .stat {
            background: #f4f1ec;
            padding: 12px 14px;
            border-radius: 8px;
            text-align: center;
        }
        .stats-grid .stat .num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
        }
        .stats-grid .stat .label {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .tip-box {
            background: #eaf4e4;
            border-radius: 8px;
            padding: 14px 18px;
            margin: 16px 0;
            border-left: 4px solid #4caf50;
        }
        .tip-box i {
            color: #4caf50;
            margin-right: 8px;
        }
        .warning-box {
            background: #fef6e4;
            border-radius: 8px;
            padding: 14px 18px;
            margin: 16px 0;
            border-left: 4px solid #f5a623;
        }
        .warning-box i {
            color: #f5a623;
            margin-right: 8px;
        }
        .interview-box {
            background: #e8f0fe;
            border-radius: 8px;
            padding: 18px 22px;
            margin: 18px 0;
            border-left: 4px solid #3f7bc0;
        }
        .interview-box .cite {
            font-weight: 600;
            color: var(--primary);
        }
        .glossary-term {
            font-weight: 600;
            color: var(--primary-light);
        }