* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #faf7f2;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0 20px;
        }
        .wrapper {
            max-width: 1240px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 32px;
            padding: 24px 32px 40px;
        }
        a {
            color: #b45309;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #78350f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 20px;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            color: #1a1a2e;
            margin-top: 1.6em;
            margin-bottom: 0.5em;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.4em;
            border-left: 6px solid #b45309;
            padding-left: 20px;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 2px solid #eaddcf;
            padding-bottom: 8px;
        }
        h3 {
            font-size: 1.4rem;
            color: #2d2d44;
        }
        h4 {
            font-size: 1.15rem;
            color: #4a3728;
        }
        p {
            margin-bottom: 1.25em;
        }
        .container {
            width: 100%;
        }
        .flex-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #b45309, #78350f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            -webkit-text-fill-color: transparent;
        }
        header {
            padding: 16px 0 12px;
            border-bottom: 1px solid #eee5db;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #4a3728;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: #f0e6dc;
        }
        .navbar {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            align-items: center;
        }
        .navbar a {
            font-weight: 600;
            color: #2d2d44;
            font-size: 0.98rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .navbar a:hover {
            border-bottom-color: #b45309;
            text-decoration: none;
            color: #1a1a2e;
        }
        .breadcrumb {
            padding: 14px 0 8px;
            font-size: 0.88rem;
            color: #6b5a4e;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb a {
            color: #6b5a4e;
        }
        .breadcrumb a:hover {
            color: #b45309;
        }
        .breadcrumb span {
            color: #9a8a7a;
        }
        .hero-wrap {
            margin: 24px 0 32px;
            border-radius: 24px;
            overflow: hidden;
            background: #eaddcf;
            position: relative;
        }
        .hero-wrap img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .hero-caption {
            padding: 12px 20px;
            background: #f5ede6;
            font-size: 0.9rem;
            color: #4a3728;
            font-style: italic;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            margin-top: 20px;
        }
        .article-body {
            min-width: 0;
        }
        .sidebar {
            border-left: 1px solid #eee5db;
            padding-left: 32px;
        }
        .sidebar-section {
            background: #faf7f2;
            border-radius: 20px;
            padding: 20px 22px;
            margin-bottom: 28px;
        }
        .sidebar-section h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 1px solid #e0d3c6;
            padding-bottom: 8px;
        }
        .sidebar-section ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-section li {
            margin-bottom: 10px;
        }
        .sidebar-section li a {
            font-weight: 500;
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed #eaddcf;
        }
        .sidebar-section li a:hover {
            background: #f0e6dc;
            padding-left: 8px;
            border-radius: 6px;
            text-decoration: none;
        }
        .form-card {
            background: #faf7f2;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 32px 0;
            border: 1px solid #eee5db;
        }
        .form-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.95rem;
            color: #2d2d44;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d6c8bc;
            border-radius: 12px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #b45309;
            outline: none;
            box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #b45309;
            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: #78350f;
            transform: translateY(-1px);
        }
        .btn:active {
            transform: scale(0.97);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d6c8bc;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f59e0b;
        }
        footer {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #eee5db;
            font-size: 0.9rem;
            color: #4a3728;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            margin-top: 0;
            font-size: 1.1rem;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
            font-weight: 500;
        }
        .friend-link a {
            color: #4a3728;
        }
        .friend-link a:hover {
            color: #b45309;
        }
        .copyright {
            text-align: center;
            padding: 20px 0 8px;
            border-top: 1px solid #eee5db;
            color: #6b5a4e;
            font-size: 0.85rem;
        }
        @media (max-width: 820px) {
            .wrapper {
                padding: 16px 16px 32px;
                border-radius: 20px;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                border-left: none;
                padding-left: 0;
                order: 2;
            }
            .article-body {
                order: 1;
            }
            h1 {
                font-size: 1.9rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.5rem;
            }
            .navbar {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 8px;
                padding: 12px 0 4px;
            }
            .navbar.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .flex-row.header-row {
                flex-wrap: nowrap;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .wrapper {
                padding: 12px 12px 24px;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .form-card {
                padding: 16px 18px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        .highlight-box {
            background: #f5ede6;
            border-left: 4px solid #b45309;
            padding: 16px 22px;
            border-radius: 12px;
            margin: 20px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .stat-card {
            background: #faf7f2;
            border-radius: 16px;
            padding: 18px 14px;
            text-align: center;
            border: 1px solid #eaddcf;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #b45309;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #6b5a4e;
        }
        .toc {
            background: #f5ede6;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 24px 0 32px;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ol {
            padding-left: 24px;
            columns: 2;
            column-gap: 32px;
        }
        .toc li {
            margin-bottom: 6px;
        }
        @media (max-width: 600px) {
            .toc ol {
                columns: 1;
            }
        }
        .last-updated {
            font-size: 0.85rem;
            color: #6b5a4e;
            background: #f5ede6;
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 12px;
        }