*,
        *::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;
            background: #f6f8fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 16px;
            max-width: 1200px;
            margin: 0 auto;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s, border-color 0.2s;
        }
        a:hover,
        a:focus {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0b0b1a;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
            border-bottom: 4px solid #e74c3c;
            padding-bottom: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #e74c3c;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.15rem;
            color: #34495e;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        strong {
            font-weight: 700;
            color: #c0392b;
        }
        em {
            font-style: italic;
            color: #2c3e50;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #fff;
            border-radius: 20px;
            padding: 20px 28px 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            margin-top: 16px;
            margin-bottom: 32px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 8px;
            border-bottom: 2px solid #eaeaea;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #e74c3c, #c0392b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            padding: 4px 0;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #555;
            background: none;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        nav#main-nav ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 6px 14px;
            flex-wrap: wrap;
        }
        nav#main-nav ul li a {
            padding: 6px 10px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #1a1a2e;
            transition: background 0.2s, color 0.2s;
        }
        nav#main-nav ul li a:hover {
            background: #fce4e0;
            color: #c0392b;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1a1a2e;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f0f0f0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 10px 0 6px;
            margin: 0 0 12px 0;
            font-size: 0.85rem;
            color: #666;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 10px;
            color: #aaa;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #c0392b;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #444;
            font-weight: 500;
        }
        .search-box {
            display: flex;
            max-width: 480px;
            margin: 20px 0 24px;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #ddd;
            transition: border-color 0.3s;
            background: #fff;
        }
        .search-box:focus-within {
            border-color: #e74c3c;
            box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.12);
        }
        .search-box input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            font-size: 1rem;
            background: transparent;
            outline: none;
            min-width: 0;
        }
        .search-box button {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0 24px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
        }
        .search-box button:hover {
            background: #e74c3c;
        }
        .info-card {
            background: #fafafa;
            border-radius: 16px;
            padding: 18px 22px;
            margin: 20px 0;
            border-left: 6px solid #e74c3c;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        .info-card p:last-child {
            margin-bottom: 0;
        }
        .highlight-box {
            background: #fff5f3;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #f0d6d0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .stat-item {
            background: #f9f9f9;
            border-radius: 14px;
            padding: 16px 12px;
            text-align: center;
            border: 1px solid #eee;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #c0392b;
            display: block;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: #555;
            font-weight: 500;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #e8e8e8;
        }
        th {
            background: #c0392b;
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        tr:nth-child(even) {
            background: #fafafa;
        }
        tr:hover td {
            background: #fef0ec;
        }
        .interact-section {
            background: #fafafa;
            border-radius: 18px;
            padding: 24px 28px;
            margin: 32px 0 20px;
            border: 1px solid #e8e8e8;
        }
        .interact-section h3 {
            margin-top: 0;
        }
        .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin: 14px 0;
        }
        .form-row input,
        .form-row textarea,
        .form-row select {
            flex: 1 1 200px;
            padding: 12px 16px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fff;
            transition: border-color 0.2s;
            min-width: 0;
        }
        .form-row input:focus,
        .form-row textarea:focus,
        .form-row select:focus {
            border-color: #e74c3c;
            outline: none;
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
        }
        .form-row textarea {
            min-height: 80px;
            flex-basis: 100%;
            resize: vertical;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #e74c3c;
            transform: scale(1.02);
        }
        .btn:active {
            transform: scale(0.98);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s, transform 0.1s;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
            transform: scale(1.08);
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        friend-link {
            display: block;
            padding: 18px 0 6px;
            border-top: 2px solid #eaeaea;
            margin-top: 20px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 10px;
            background: #f5f5f5;
            border-radius: 20px;
            font-weight: 500;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #fce4e0;
            text-decoration: none;
        }
        footer {
            padding: 24px 0 10px;
            border-top: 2px solid #eaeaea;
            margin-top: 24px;
            font-size: 0.9rem;
            color: #666;
            text-align: center;
        }
        footer .copy {
            font-weight: 500;
            color: #333;
        }
        @media (max-width: 820px) {
            body {
                padding: 0 10px;
            }
            .container {
                padding: 14px 14px 24px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hamburger {
                display: block;
            }
            nav#main-nav {
                display: none;
                width: 100%;
                order: 3;
                padding-top: 12px;
            }
            nav#main-nav.open {
                display: block;
            }
            nav#main-nav ul {
                flex-direction: column;
                gap: 4px;
                background: #fafafa;
                border-radius: 16px;
                padding: 10px 12px;
            }
            nav#main-nav ul li a {
                display: block;
                padding: 10px 14px;
                border-radius: 10px;
            }
            header {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .search-box {
                max-width: 100%;
            }
            .interact-section {
                padding: 16px 14px;
            }
            .form-row {
                flex-direction: column;
            }
            .form-row input,
            .form-row textarea,
            .form-row select {
                flex-basis: auto;
            }
            table {
                font-size: 0.8rem;
            }
            th,
            td {
                padding: 8px 10px;
            }
            .star-rating {
                font-size: 1.5rem;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 10px 10px 18px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 0.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item .num {
                font-size: 1.5rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        .schema-hidden {
            display: none;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #888;
            border-top: 1px dashed #ddd;
            padding-top: 12px;
            margin-top: 24px;
            text-align: right;
        }
        .feature-img-wrap {
            margin: 24px 0 16px;
            border-radius: 16px;
            overflow: hidden;
            background: #f0f0f0;
        }
        .feature-img-wrap img {
            width: 100%;
            object-fit: cover;
            max-height: 480px;
        }
        .feature-img-wrap figcaption {
            padding: 10px 16px;
            font-size: 0.85rem;
            color: #666;
            background: #f9f9f9;
            border-top: 1px solid #eee;
        }
        blockquote {
            border-left: 5px solid #e74c3c;
            padding: 12px 20px;
            margin: 20px 0;
            background: #fcf8f7;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2c3e50;
        }
        blockquote strong {
            color: #c0392b;
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .tag {
            display: inline-block;
            background: #eef2f7;
            border-radius: 20px;
            padding: 2px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 2px 4px 2px 0;
        }
        .tag-red {
            background: #fce4e0;
            color: #c0392b;
        }