*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
            max-width: 1200px;
            margin: 0 auto;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.2;
            color: #0b1a2a;
        }
        h1 {
            font-size: 2.2rem;
            margin: 1.2rem 0 0.6rem;
        }
        h2 {
            font-size: 1.7rem;
            margin: 2rem 0 0.8rem;
            border-left: 5px solid #c0392b;
            padding-left: 12px;
        }
        h3 {
            font-size: 1.3rem;
            margin: 1.6rem 0 0.5rem;
        }
        h4 {
            font-size: 1.05rem;
            margin: 1rem 0 0.3rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            background: #fff;
            border-radius: 20px;
            padding: 20px 24px 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            margin: 16px 0 32px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 8px;
            border-bottom: 2px solid #e0e7ef;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #c0392b, #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #c0392b;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1a2634;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f7;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            align-items: center;
            list-style: none;
            padding: 0;
        }
        .nav-menu li a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
            color: #1a2634;
        }
        .nav-menu li a:hover {
            background: #eef2f7;
            text-decoration: none;
        }
        .nav-menu li a i {
            margin-right: 5px;
            color: #c0392b;
        }
        .breadcrumb {
            font-size: 0.85rem;
            padding: 10px 0 6px;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 4px 8px;
        }
        .breadcrumb a {
            color: #5a6a7a;
        }
        .breadcrumb a:hover {
            color: #c0392b;
        }
        .breadcrumb span {
            color: #1a2634;
            font-weight: 500;
        }
        .search-box {
            display: flex;
            gap: 6px;
            max-width: 480px;
            margin: 16px 0 20px;
            background: #f4f7fc;
            border-radius: 40px;
            padding: 4px 4px 4px 18px;
            border: 1px solid #dce3ec;
            transition: border 0.25s;
        }
        .search-box:focus-within {
            border-color: #c0392b;
            background: #fff;
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 10px 0;
            font-size: 0.95rem;
            outline: none;
            font-family: inherit;
        }
        .search-box button {
            background: #c0392b;
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-box button:hover {
            background: #a93226;
        }
        .toc {
            background: #f8faff;
            border: 1px solid #dce3ec;
            border-radius: 16px;
            padding: 18px 22px;
            margin: 20px 0 28px;
        }
        .toc h3 {
            margin: 0 0 10px;
            font-size: 1.1rem;
        }
        .toc ul {
            columns: 2 220px;
            list-style: none;
            padding: 0;
        }
        .toc li {
            padding: 3px 0;
        }
        .toc li a {
            font-weight: 500;
        }
        .toc li a::before {
            content: "▸ ";
            color: #c0392b;
        }
        .interaction-area {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 40px;
            margin: 32px 0 20px;
            padding: 20px 0;
            border-top: 2px solid #eef2f7;
            border-bottom: 2px solid #eef2f7;
        }
        .rating-widget {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 16px;
        }
        .rating-widget .stars {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.15s;
        }
        .rating-widget .stars i {
            transition: color 0.15s, transform 0.1s;
        }
        .rating-widget .stars i.active,
        .rating-widget .stars i:hover,
        .rating-widget .stars i:hover~i {
            color: #f1c40f;
        }
        .rating-widget .stars i:hover {
            transform: scale(1.15);
        }
        .rating-widget .rating-value {
            font-weight: 700;
            font-size: 1.1rem;
            color: #1a2634;
        }
        .rating-widget button {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.9rem;
        }
        .rating-widget button:hover {
            background: #a93226;
        }
        .comment-form {
            flex: 1;
            min-width: 240px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .comment-form input,
        .comment-form textarea {
            flex: 1 1 200px;
            padding: 10px 14px;
            border: 1px solid #dce3ec;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.9rem;
            outline: none;
            transition: border 0.2s;
            background: #fafcff;
        }
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: #c0392b;
            background: #fff;
        }
        .comment-form textarea {
            min-height: 60px;
            resize: vertical;
            flex-basis: 100%;
        }
        .comment-form button {
            background: #1a2634;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.9rem;
        }
        .comment-form button:hover {
            background: #2c3e50;
        }
        friend-link {
            display: block;
            background: #f8faff;
            border-radius: 16px;
            padding: 18px 22px;
            margin: 28px 0 12px;
            border: 1px solid #dce3ec;
            font-style: normal;
        }
        friend-link::before {
            content: "🔗 Friendly Links";
            display: block;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 8px;
            color: #1a2634;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            font-weight: 500;
        }
        friend-link a::after {
            content: " ·";
            color: #bbb;
            margin-left: 4px;
        }
        friend-link a:last-child::after {
            content: "";
        }
        .site-footer {
            text-align: center;
            padding: 20px 0 28px;
            color: #5a6a7a;
            font-size: 0.85rem;
            border-top: 2px solid #e0e7ef;
            margin-top: 16px;
        }
        .site-footer p {
            margin: 4px 0;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 10px;
            }
            .container {
                padding: 14px 14px 24px;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .site-header {
                padding: 10px 0 4px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .hamburger {
                display: inline-block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 12px 0 4px;
                gap: 2px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                padding: 10px 12px;
                border-radius: 8px;
            }
            .toc ul {
                columns: 1;
            }
            .interaction-area {
                flex-direction: column;
                gap: 16px;
            }
            .rating-widget {
                justify-content: center;
            }
            .comment-form input,
            .comment-form textarea {
                flex-basis: 100%;
            }
            .search-box {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 10px 10px 18px;
            }
            h1 {
                font-size: 1.35rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .rating-widget .stars {
                font-size: 1.3rem;
            }
        }
        .last-updated {
            font-size: 0.8rem;
            color: #7f8c9b;
            background: #f0f3f8;
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            margin: 8px 0 16px;
        }
        .highlight-box {
            background: #fef9f0;
            border-left: 4px solid #e67e22;
            padding: 14px 18px;
            border-radius: 0 12px 12px 0;
            margin: 18px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 12px;
            margin: 16px 0;
        }
        .stat-card {
            background: #f4f7fc;
            padding: 14px 12px;
            border-radius: 12px;
            text-align: center;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #c0392b;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #5a6a7a;
        }
        .interview-box {
            background: #eaf4f4;
            border-radius: 16px;
            padding: 18px 20px;
            margin: 18px 0;
            border: 1px solid #cfe2e2;
        }
        .interview-box i {
            color: #1a6b6b;
            margin-right: 6px;
        }
        .btn-top {
            display: inline-block;
            margin-top: 8px;
            font-size: 0.85rem;
            background: #eef2f7;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 500;
        }
        .btn-top:hover {
            background: #dce3ec;
            text-decoration: none;
        }
        .schema-note {
            display: none;
        }
        section {
            scroll-margin-top: 70px;
        }