*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #faf7f2;
            color: #2c2c2c;
            line-height: 1.7;
            padding: 0 20px;
        }
        a {
            color: #b23b2c;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #7a251a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        hr {
            border: none;
            border-top: 2px solid #e8ddd0;
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        header {
            padding: 1.2rem 0 0.6rem;
            border-bottom: 3px solid #d9c7b4;
            background: #fffcf8;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem 1.5rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #b23b2c, #d46b4a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            font-size: 2rem;
            -webkit-text-fill-color: #b23b2c;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        nav.main-nav ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.8rem;
            list-style: none;
            padding: 0;
        }
        nav.main-nav a {
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 40px;
            font-size: 0.95rem;
            color: #4a3f38;
        }
        nav.main-nav a:hover {
            background: #efe6dc;
            color: #b23b2c;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #4a3f38;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #efe6dc;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #7a7068;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #7a7068;
        }
        .breadcrumb a:hover {
            color: #b23b2c;
        }
        .breadcrumb span.sep {
            margin: 0 2px;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 2.5rem;
            padding: 2rem 0 3rem;
        }
        @media(max-width:860px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            line-height: 1.2;
            color: #1f1a16;
            margin-bottom: 0.5rem;
            font-weight: 800;
        }
        .article-body h2 {
            font-size: 1.9rem;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            color: #2c241e;
            border-left: 5px solid #b23b2c;
            padding-left: 1rem;
            font-weight: 700;
        }
        .article-body h3 {
            font-size: 1.4rem;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
            color: #3d322b;
            font-weight: 600;
        }
        .article-body h4 {
            font-size: 1.15rem;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            color: #4a3f38;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 1.1rem;
        }
        .article-body .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            font-size: 0.9rem;
            color: #7a7068;
            margin: 0.5rem 0 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #e8ddd0;
        }
        .article-body .meta-info i {
            margin-right: 5px;
        }
        .featured-img {
            margin: 1.8rem 0 2.2rem;
            border-radius: 14px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-img figcaption {
            font-size: 0.85rem;
            color: #7a7068;
            text-align: center;
            margin-top: 6px;
        }
        blockquote {
            border-left: 4px solid #b23b2c;
            background: #f3ede7;
            padding: 1.2rem 1.8rem;
            margin: 1.8rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3d322b;
        }
        blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 500;
            font-size: 0.9rem;
            color: #7a7068;
        }
        .highlight {
            background: #efe6dc;
            padding: 0.1rem 0.5rem;
            border-radius: 6px;
            font-weight: 500;
        }
        .link-group {
            background: #f3ede7;
            border-radius: 14px;
            padding: 1.2rem 1.8rem;
            margin: 1.8rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        .link-group a {
            font-weight: 500;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fffcf8;
            border-radius: 16px;
            padding: 1.4rem 1.2rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8ddd0;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
            color: #2c241e;
            border-bottom: 2px solid #e8ddd0;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 0.5rem;
        }
        .sidebar-card li a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.95rem;
        }
        .sidebar-card li a::before {
            content: "▸ ";
            color: #b23b2c;
        }
        .form-section {
            background: #fffcf8;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            margin: 2.5rem 0;
            border: 1px solid #e8ddd0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }
        .form-section h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #2c241e;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 0.3rem;
            color: #3d322b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0d5c8;
            border-radius: 10px;
            font-size: 1rem;
            background: #fefcf9;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #b23b2c;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #b23b2c;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .btn:hover {
            background: #7a251a;
            transform: scale(0.98);
        }
        .btn i {
            margin-right: 6px;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #d9c7b4;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #e8a838;
        }
        friend-link {
            display: block;
            padding: 1.8rem 0 1rem;
            border-top: 3px solid #d9c7b4;
            margin-top: 2rem;
        }
        friend-link .fl-head {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: #2c241e;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 1.2rem;
            list-style: none;
            padding: 0;
        }
        friend-link .fl-list a {
            font-size: 0.9rem;
        }
        footer {
            padding: 1.2rem 0 2rem;
            font-size: 0.85rem;
            color: #7a7068;
            border-top: 1px solid #e8ddd0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.5rem;
        }
        footer a {
            color: #7a7068;
        }
        footer a:hover {
            color: #b23b2c;
        }
        @media(max-width:680px) {
            .hamburger {
                display: block;
            }
            nav.main-nav {
                display: none;
                width: 100%;
                order: 3;
                padding-top: 0.6rem;
            }
            nav.main-nav.open {
                display: block;
            }
            nav.main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav.main-nav a {
                display: block;
                padding: 0.6rem 0.8rem;
                border-radius: 0;
                border-bottom: 1px solid #f0e8df;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            header {
                padding: 0.8rem 0 0.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .form-section {
                padding: 1.2rem 1rem;
            }
        }
        @media(max-width:480px) {
            body {
                padding: 0 12px;
            }
            .container {
                padding: 0 4px;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
        }
        :focus-visible {
            outline: 3px solid #b23b2c;
            outline-offset: 2px;
        }
        @media print {
            header,
            .sidebar,
            .form-section,
            friend-link,
            footer,
            .breadcrumb {
                display: none;
            }
            .page-wrap {
                grid-template-columns: 1fr;
            }
            body {
                background: #fff;
                padding: 0;
            }
        }