*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #faf7f2;
            color: #2c2b28;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #9b4b8a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #6e2d61;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            padding: 1.5rem 0 0.5rem 0;
            border-bottom: 2px solid #e8ddd0;
            margin-bottom: 1.5rem;
        }
        .header-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #b06ab3, #e58c8c);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            color: #7a6a5e;
            background: none;
            -webkit-background-clip: unset;
            background-clip: unset;
        }
        .nav-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.25rem 1.2rem;
        }
        .nav-bar a {
            font-weight: 500;
            color: #4a3f36;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-bar a:hover {
            border-bottom-color: #b06ab3;
            color: #6e2d61;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #4a3f36;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            transition: color 0.2s;
        }
        .hamburger:hover {
            color: #b06ab3;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.75rem 0 0.25rem 0;
            font-size: 0.85rem;
            color: #8a7a6e;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.6rem;
            color: #b9a99a;
        }
        .breadcrumb a {
            color: #7a6a5e;
        }
        .breadcrumb a:hover {
            color: #9b4b8a;
        }
        .breadcrumb .current {
            color: #4a3f36;
            font-weight: 500;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:860px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: #1f1b16;
        }
        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            color: #2c241e;
            border-bottom: 3px solid #e8ddd0;
            padding-bottom: 0.4rem;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.6rem;
            color: #3d3229;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            color: #4f4237;
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .article-body ul,
        .article-body ol {
            margin: 0.8rem 0 1.4rem 2rem;
        }
        .article-body li {
            margin-bottom: 0.4rem;
        }
        .article-body .highlight-box {
            background: #f0ebe3;
            border-left: 5px solid #b06ab3;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .article-body .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .article-body .emoji-big {
            font-size: 1.4em;
            margin-right: 0.2em;
        }
        .article-body img.feature-img {
            margin: 1.8rem auto;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            width: 100%;
            max-width: 800px;
        }
        .last-updated {
            display: inline-block;
            background: #e8ddd0;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #4a3f36;
            margin-bottom: 1.5rem;
        }
        .sidebar {
            background: #f5efe8;
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            position: sticky;
            top: 1.5rem;
            align-self: start;
            height: fit-content;
            max-height: calc(100vh - 3rem);
            overflow-y: auto;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: #2c241e;
        }
        .sidebar ul {
            list-style: none;
            margin: 0;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            display: block;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
            font-size: 0.9rem;
        }
        .sidebar a:hover {
            background: #e8ddd0;
            text-decoration: none;
        }
        .form-card {
            background: #f5efe8;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            margin: 2rem 0 1.5rem 0;
        }
        .form-card h3 {
            margin-top: 0;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.9rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd3c8;
            border-radius: 10px;
            font-size: 1rem;
            background: #fffcf8;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #b06ab3;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: #9b4b8a;
            color: #fff !important;
            padding: 0.7rem 2rem;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            text-decoration: none !important;
        }
        .btn:hover {
            background: #7a366c;
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #c6b6a6;
        }
        .btn-secondary:hover {
            background: #b09f8e;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d6c9bc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .comment-item {
            background: #fffcf8;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin-bottom: 1rem;
            border: 1px solid #e8ddd0;
        }
        .comment-item .meta {
            font-size: 0.8rem;
            color: #8a7a6e;
            margin-bottom: 0.3rem;
        }
        .comment-item .name {
            font-weight: 600;
            color: #2c241e;
        }
        .comment-item .text {
            margin-top: 0.2rem;
        }
        .site-footer {
            margin-top: 4rem;
            padding: 2.5rem 0 2rem 0;
            border-top: 2px solid #e8ddd0;
            text-align: center;
        }
        .site-footer .friend-link {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem 2rem;
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }
        .site-footer .friend-link a {
            color: #7a6a5e;
        }
        .site-footer .friend-link a:hover {
            color: #9b4b8a;
        }
        .site-footer .copyright {
            font-size: 0.8rem;
            color: #a09080;
        }
        @media(max-width:700px) {
            .hamburger {
                display: inline-block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem 0;
                gap: 0.3rem;
            }
            #nav-toggle:checked~.nav-bar {
                display: flex;
            }
            .header-row {
                align-items: center;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .sidebar {
                position: static;
                max-height: none;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        @media(max-width:440px) {
            .my-logo {
                font-size: 1.3rem;
            }
            .form-card {
                padding: 1rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #9b4b8a;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transition: opacity 0.3s, transform 0.3s;
            z-index: 99;
            opacity: 0;
            pointer-events: none;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            background: #7a366c;
            color: #fff;
        }