*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --bg: #faf7f2;
            --bg-dark: #1a1a2e;
            --text: #2d2d2d;
            --text-light: #6b7280;
            --text-white: #f0f0f0;
            --primary: #b71c1c;
            --primary-light: #e53935;
            --secondary: #1e3a5f;
            --accent: #f59e0b;
            --green: #2d6a4f;
            --gray-light: #f3f4f6;
            --gray-border: #e5e7eb;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
            --radius: 14px;
            --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
        }
        .header {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 0 1.5rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
        }
        .header__inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            background: linear-gradient(135deg, #e53935, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            font-family: var(--font-heading);
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav__desktop {
            display: flex;
            gap: 1.8rem;
            align-items: center;
        }
        .nav__desktop a {
            color: rgba(255, 255, 255, 0.88);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.2s;
        }
        .nav__desktop a:hover {
            color: var(--accent);
        }
        .nav__toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
        }
        .nav__mobile {
            display: none;
            width: 100%;
            background: var(--bg-dark);
            flex-direction: column;
            padding: 0.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav__mobile.active {
            display: flex;
        }
        .nav__mobile a {
            color: rgba(255, 255, 255, 0.88);
            text-decoration: none;
            padding: 0.7rem 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: background 0.2s;
        }
        .nav__mobile a:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .breadcrumb {
            background: #f1efeb;
            padding: 0.6rem 1.5rem;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb__inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2.5rem 1.5rem;
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 3rem;
        }
        .article {
            min-width: 0;
        }
        .article h1 {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 1.2rem;
            border-left: 5px solid var(--primary);
            padding-left: 1rem;
        }
        .article h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            color: var(--secondary);
            margin: 3rem 0 1.2rem;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid var(--gray-border);
        }
        .article h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin: 2rem 0 0.8rem;
            font-weight: 700;
        }
        .article h4 {
            font-size: 1.1rem;
            color: var(--text);
            margin: 1.5rem 0 0.5rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article p {
            margin-bottom: 1.2rem;
            font-size: 1.02rem;
        }
        .article ul,
        .article ol {
            margin: 1rem 0 1.5rem 1.8rem;
        }
        .article li {
            margin-bottom: 0.4rem;
        }
        .article a {
            color: var(--primary);
            text-decoration: underline;
            font-weight: 500;
        }
        .article a:hover {
            color: var(--primary-light);
        }
        .article blockquote {
            border-left: 4px solid var(--accent);
            background: #fffbeb;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
        }
        .article img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            margin: 1.8rem 0;
        }
        .article .figure-caption {
            font-size: 0.85rem;
            color: var(--text-light);
            text-align: center;
            margin-top: -1.2rem;
            margin-bottom: 1.8rem;
        }
        .article .highlight-box {
            background: var(--gray-light);
            border-radius: var(--radius);
            padding: 1.2rem 1.5rem;
            margin: 1.8rem 0;
            border-left: 4px solid var(--primary);
        }
        .article .table-wrapper {
            overflow-x: auto;
            margin: 1.8rem 0;
        }
        .article table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        .article th {
            background: var(--bg-dark);
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        .article td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid var(--gray-border);
        }
        .article tr:hover td {
            background: #faf5ed;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: #fff;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--gray-border);
        }
        .widget h3 {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--gray-border);
            padding-bottom: 0.5rem;
        }
        .widget--search {
            background: var(--secondary);
            color: white;
        }
        .widget--search h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }
        .widget form {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .widget input[type="text"] {
            flex: 1;
            min-width: 0;
            padding: 0.6rem 0.9rem;
            border-radius: 8px;
            border: none;
            font-size: 0.95rem;
        }
        .widget button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 0.6rem 1rem;
            cursor: pointer;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        .widget button:hover {
            background: var(--primary-light);
        }
        .widget__links {
            list-style: none;
        }
        .widget__links li {
            padding: 0.4rem 0;
            border-bottom: 1px dashed var(--gray-border);
        }
        .widget__links li:last-child {
            border-bottom: none;
        }
        .widget__links a {
            color: var(--secondary);
            text-decoration: none;
            font-size: 0.9rem;
        }
        .widget__links a:hover {
            color: var(--primary);
            padding-left: 4px;
            transition: 0.2s;
        }
        .widget__score {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .widget__score .score-display {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            text-align: center;
        }
        .widget__score .star-row {
            font-size: 1.3rem;
            text-align: center;
            color: var(--accent);
        }
        .widget__score .score-form {
            display: flex;
            gap: 0.4rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .widget__score .score-form input {
            padding: 0.4rem;
            border-radius: 6px;
            border: 1px solid #ccc;
            width: 70px;
        }
        .widget__comment {
            margin-top: 1rem;
        }
        .widget__comment textarea {
            width: 100%;
            padding: 0.7rem;
            border-radius: 8px;
            border: 1px solid #ccc;
            min-height: 90px;
            font-size: 0.92rem;
            margin-bottom: 0.5rem;
            resize: vertical;
        }
        .widget__comment input[type="text"] {
            width: 100%;
            padding: 0.6rem;
            border-radius: 8px;
            border: 1px solid #ccc;
            margin-bottom: 0.5rem;
            font-size: 0.92rem;
        }
        .widget__comment button {
            background: var(--green);
            color: white;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 8px;
            cursor: pointer;
        }
        .widget__comment button:hover {
            opacity: 0.9;
        }
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 2.5rem 1.5rem 1.5rem;
            margin-top: 3rem;
        }
        .footer__inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer h4 {
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer__links {
            list-style: none;
        }
        .footer__links li {
            margin-bottom: 0.5rem;
            font-size: 0.92rem;
        }
        .footer__copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer .friend-link {
            list-style: none;
            padding: 0;
        }
        @media (max-width: 900px) {
            .main {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .nav__desktop {
                display: none;
            }
            .nav__toggle {
                display: block;
            }
            .article h1 {
                font-size: 1.8rem;
            }
            .article h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 600px) {
            body {
                font-size: 15px;
            }
            .main {
                padding: 1.5rem 1rem;
            }
            .article img {
                margin: 1rem 0;
            }
        }