*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #b74b2e;
            --primary-light: #d97a5a;
            --primary-dark: #8a331e;
            --secondary: #f5e6d3;
            --accent: #2e8b7a;
            --accent-light: #3fb5a0;
            --bg: #fefcf7;
            --bg-card: #ffffff;
            --text: #2c241b;
            --text-light: #5f5146;
            --border: #e6dcd0;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --radius-sm: 8px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1120px;
            --header-h: 72px;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding-top: var(--header-h);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 650;
            line-height: 1.3;
            color: var(--text);
            margin-top: 1.8em;
            margin-bottom: 0.5em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2em;
            color: var(--primary-dark);
            border-bottom: 4px solid var(--primary);
            padding-bottom: 0.25em;
            display: inline-block;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary);
            border-left: 6px solid var(--accent);
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.35rem;
            color: var(--text);
        }
        h4 {
            font-size: 1.1rem;
            color: var(--text-light);
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: var(--bg-card);
            border-bottom: 2px solid var(--border);
            z-index: 1000;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            backdrop-filter: blur(6px);
            background: rgba(255, 254, 247, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
            gap: 1rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            text-decoration: none !important;
            flex-shrink: 0;
        }
        .my-logo:hover {
            color: var(--primary);
        }
        .my-logo span {
            background: var(--primary);
            color: #fff;
            padding: 0.1em 0.4em;
            border-radius: 6px;
            font-size: 0.7em;
            margin-left: 0.2em;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 0.25rem;
            align-items: center;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-light);
            transition: background var(--transition), color var(--transition);
        }
        .nav-list li a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .hamburger:hover {
            background: var(--secondary);
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text);
            border-radius: 3px;
            transition: all 0.3s ease;
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }
        @media (max-width: 820px) {
            .hamburger {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 1.25rem 1.5rem;
                gap: 0.25rem;
                border-bottom: 3px solid var(--border);
                box-shadow: var(--shadow);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.3s ease;
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list li a {
                font-size: 1.05rem;
                padding: 0.7rem 1rem;
                border-bottom: 1px solid var(--border);
            }
            .nav-list li:last-child a {
                border-bottom: none;
            }
        }
        .breadcrumb {
            padding: 0.75rem 0 0.25rem;
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            list-style: none;
            background: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: var(--border);
            font-weight: 700;
        }
        .breadcrumb a {
            color: var(--accent);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
        }
        .main-content {
            flex: 1;
            padding: 1.5rem 0 3rem;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 2.5rem 2.8rem;
            margin: 1.5rem 0 2rem;
        }
        @media (max-width: 640px) {
            .article-body {
                padding: 1.25rem 1rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }
        .article-body p {
            text-align: justify;
            hyphens: auto;
        }
        .featured-image {
            margin: 1.8rem 0 2.2rem;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: var(--secondary);
            padding: 0.6rem 1rem;
            font-size: 0.88rem;
            color: var(--text-light);
            font-style: italic;
        }
        .highlight-box {
            background: var(--secondary);
            border-left: 6px solid var(--accent);
            padding: 1.5rem 2rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .insight-card {
            background: #f8f4ef;
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.6rem;
            margin: 1.5rem 0;
            border: 1px solid var(--border);
        }
        .insight-card h4 {
            margin-top: 0;
            color: var(--primary-dark);
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            padding: 0.5rem 0 1rem;
            list-style: none;
        }
        .link-list-inline li::before {
            content: "✦";
            color: var(--accent);
            margin-right: 0.4rem;
        }
        hr {
            border: none;
            border-top: 2px dashed var(--border);
            margin: 2.5rem 0;
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2em 0.7em;
            border-radius: 20px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0 1rem;
        }
        @media (max-width: 700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .interaction-card {
            background: var(--bg-card);
            border: 2px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem 1.8rem;
            transition: box-shadow var(--transition);
        }
        .interaction-card:hover {
            box-shadow: var(--shadow);
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
            margin-top: 0.8rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.7rem 1rem;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            font-family: var(--font);
            font-size: 0.95rem;
            background: var(--bg);
            transition: border var(--transition);
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(183, 75, 46, 0.1);
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background var(--transition), transform 0.15s;
            align-self: flex-start;
        }
        .interaction-card button:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .interaction-card button:active {
            transform: scale(0.97);
        }
        .score-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.25rem;
        }
        .score-stars input {
            display: none;
        }
        .score-stars label {
            font-size: 1.8rem;
            color: var(--border);
            cursor: pointer;
            transition: color 0.2s;
        }
        .score-stars input:checked~label,
        .score-stars label:hover,
        .score-stars label:hover~label {
            color: #f5b342;
        }
        .site-footer {
            background: var(--text);
            color: #ede8e0;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem 3rem;
        }
        @media (max-width: 640px) {
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .site-footer a {
            color: var(--accent-light);
        }
        .site-footer a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            padding: 0.25rem 0.5rem;
            margin: 0.15rem 0.15rem 0.15rem 0;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 4px;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.14);
            text-decoration: none;
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            margin-top: 0.5rem;
            font-size: 0.85rem;
            text-align: center;
            color: #b8ae9e;
        }
        .copyright strong {
            color: #ede8e0;
        }
        @media (max-width: 480px) {
            .header-inner {
                padding: 0 0.75rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo span {
                font-size: 0.6em;
            }
            .article-body {
                padding: 1rem 0.75rem;
            }
            .highlight-box {
                padding: 1rem 1.2rem;
            }
            .interaction-card {
                padding: 1rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-light);
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }