* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a2a6c;
            --secondary: #b21f1f;
            --accent: #fdbb2d;
            --bg: #faf9f6;
            --card-bg: #ffffff;
            --text: #1e1e2a;
            --text-light: #555568;
            --border: #e2e0dc;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 1.05rem;
            padding: 0 20px;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            display: block;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
            color: var(--primary);
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1f3a6b;
        }
        h4 {
            font-size: 1.2rem;
            color: #2a4a7a;
        }
        p {
            margin-bottom: 1.4rem;
        }
        ul,
        ol {
            margin: 1rem 0 1.8rem 2rem;
        }
        li {
            margin-bottom: 0.6rem;
        }
        .container {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 2rem 2.5rem;
            box-shadow: var(--shadow);
            margin: 1.5rem 0 3rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.4rem 0;
            border-bottom: 2px solid var(--border);
            position: relative;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            letter-spacing: -0.04em;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--accent);
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            font-weight: 600;
            color: var(--text);
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 0.98rem;
        }
        nav a:hover {
            border-bottom-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--primary);
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
        }
        .hamburger:hover {
            background: var(--border);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 0.3rem;
            font-size: 0.92rem;
            color: var(--text-light);
            padding: 0.6rem 0 0.2rem;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li {
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.4rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            max-width: 520px;
            margin: 2rem 0 1.2rem;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
            min-width: 180px;
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            padding: 0.8rem 1.8rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
        }
        .search-box button:hover {
            background: var(--secondary);
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        @media (max-width:700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 1.8rem 2rem;
            border: 1px solid var(--border);
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 0.98rem;
            font-family: var(--font);
            outline: none;
            transition: 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--primary);
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 0.8rem 2rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: var(--secondary);
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ccc;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        friend-link {
            display: block;
            padding: 1.5rem 0 0.8rem;
            border-top: 2px solid var(--border);
            margin-top: 2rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1.2rem 0.3rem 0;
            padding: 0.2rem 0;
            font-weight: 500;
        }
        footer {
            padding: 1.8rem 0 2.5rem;
            text-align: center;
            color: var(--text-light);
            font-size: 0.95rem;
            border-top: 1px solid var(--border);
            margin-top: 2rem;
        }
        footer p {
            margin-bottom: 0.4rem;
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: #1a1a2a;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.92rem;
            color: var(--text-light);
            margin: 1rem 0 0.4rem;
            padding: 0.6rem 1rem;
            background: #f0efe9;
            border-radius: 40px;
            width: fit-content;
        }
        .highlight {
            background: linear-gradient(to top, rgba(253, 187, 45, 0.2) 40%, transparent 40%);
            padding: 0 0.2rem;
            font-weight: 600;
        }
        .quote-block {
            border-left: 5px solid var(--accent);
            padding: 1.2rem 2rem;
            margin: 1.8rem 0;
            background: #f8f7f2;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
        }
        .quote-block cite {
            display: block;
            margin-top: 0.6rem;
            font-style: normal;
            font-weight: 600;
            color: var(--primary);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8f7f2;
        }
        @media (max-width:850px) {
            body {
                padding: 0 14px;
            }
            .container {
                padding: 1.2rem 1.2rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.7rem;
            }
            nav {
                gap: 0.8rem;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-basis: 100%;
                flex-direction: column;
                gap: 0.6rem;
                padding: 1rem 0 0.4rem;
            }
            #nav-toggle:checked~.nav-links {
                display: flex;
            }
            header {
                align-items: center;
            }
        }
        @media (max-width:480px) {
            .container {
                padding: 1rem 1rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .search-box button {
                padding: 0.7rem 1.2rem;
                font-size: 0.92rem;
            }
        }
        .img-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: center;
            margin-top: -1.2rem;
            margin-bottom: 2rem;
        }
        .toc {
            background: #f0efe9;
            padding: 1.6rem 2rem;
            border-radius: var(--radius);
            margin: 1.8rem 0;
        }
        .toc ol {
            margin: 0.8rem 0 0 1.6rem;
        }
        .toc a {
            text-decoration: none;
        }
        .toc a:hover {
            text-decoration: underline;
        }