*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f7f5f0;
            color: #2d2a24;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2e7d32;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1b5e20;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            border-radius: 28px;
            padding: 1.8rem 2rem 2.5rem;
            margin-top: 1.2rem;
            margin-bottom: 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 1rem;
            border-bottom: 2px solid #e8e3da;
            margin-bottom: 1.2rem;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #388e3c, #66bb6a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: transparent;
        }
        .my-logo a:hover {
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.8rem;
            -webkit-text-fill-color: #6b5e4a;
            display: block;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            color: #3e3a34;
            transition: background 0.2s, color 0.2s;
        }
        .nav-bar a:hover {
            background: #e8e3da;
            color: #1b5e20;
            text-decoration: none;
        }
        .nav-bar .active {
            background: #2e7d32;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #2d2a24;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e8e3da;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: #7a6f5c;
            padding: 0.6rem 0 1.2rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #5a6e3b;
        }
        .breadcrumb a:hover {
            color: #2e7d32;
        }
        .breadcrumb span.sep {
            color: #b8aa94;
            margin: 0 0.2rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #1e3a1e;
            margin-bottom: 0.6rem;
            letter-spacing: -1px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #2d4a2d;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #c8e6c9;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #3a5a3a;
            margin-top: 2rem;
            margin-bottom: 0.7rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #4a6e4a;
            margin-top: 1.4rem;
            margin-bottom: 0.4rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2d2a24;
        }
        .lead {
            font-size: 1.25rem;
            color: #4a4238;
            font-weight: 400;
            border-left: 4px solid #81c784;
            padding-left: 1.2rem;
            background: #f8f6f1;
            border-radius: 0 12px 12px 0;
            padding: 1rem 1.2rem;
        }
        strong {
            color: #1e3a1e;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.2rem;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-top: 1.2rem;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: 2rem;
            align-self: start;
        }
        .toc {
            background: #f1efe9;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            margin-bottom: 2rem;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
        }
        .toc ul li {
            padding: 0.3rem 0;
            border-bottom: 1px dashed #d5cec0;
        }
        .toc ul li:last-child {
            border-bottom: none;
        }
        .toc ul li a {
            color: #3e5a3e;
            font-weight: 500;
        }
        .toc ul li a:hover {
            color: #1b5e20;
        }
        .sidebar-widget {
            background: #f8f6f1;
            border-radius: 16px;
            padding: 1.5rem 1.2rem;
            margin-bottom: 1.8rem;
            border: 1px solid #e8e3da;
        }
        .sidebar-widget h4 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #c8e6c9;
            padding-bottom: 0.4rem;
            margin-bottom: 0.8rem;
        }
        .sidebar-widget ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-widget ul li {
            padding: 0.3rem 0;
        }
        .sidebar-widget ul li a {
            font-size: 0.95rem;
        }
        .sidebar-widget .star-rating {
            color: #f9a825;
            font-size: 1.1rem;
            letter-spacing: 2px;
        }
        .form-card {
            background: #f8f6f1;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            margin: 2rem 0;
            border: 1px solid #e0d9ce;
        }
        .form-card h3 {
            margin-top: 0;
            font-size: 1.4rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.95rem;
            color: #3e3a34;
            margin-bottom: 0.3rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d5cec0;
            border-radius: 10px;
            font-size: 1rem;
            background: #fff;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #66bb6a;
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #2e7d32;
            color: #fff;
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #1b5e20;
            transform: translateY(-2px);
            text-decoration: none;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: #8d6e4c;
        }
        .btn-secondary:hover {
            background: #6d5238;
        }
        .star-input {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-input input {
            display: none;
        }
        .star-input label {
            font-size: 2rem;
            color: #d5cec0;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-input input:checked~label,
        .star-input label:hover,
        .star-input label:hover~label {
            color: #f9a825;
        }
        .comment-list {
            margin-top: 1.5rem;
        }
        .comment-item {
            background: #fff;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            margin-bottom: 1rem;
            border-left: 4px solid #a5d6a7;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .comment-item .meta {
            font-size: 0.85rem;
            color: #7a6f5c;
            display: flex;
            gap: 1rem;
            margin-bottom: 0.3rem;
        }
        .comment-item .meta .name {
            font-weight: 700;
            color: #2d4a2d;
        }
        .comment-item .stars {
            color: #f9a825;
            font-size: 0.9rem;
        }
        .hero-img-wrap {
            margin: 2rem 0 2.2rem 0;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            background: #e8e3da;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }
        .hero-img-wrap .img-caption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #5a4e3c;
            background: #f1efe9;
            font-style: italic;
        }
        .tip-box {
            background: #e8f5e9;
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border-left: 6px solid #388e3c;
        }
        .tip-box strong {
            color: #1b5e20;
        }
        .site-footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e8e3da;
        }
        .site-footer friend-link {
            display: block;
            margin-bottom: 1.2rem;
            font-size: 0.95rem;
        }
        .site-footer friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            color: #4a6e4a;
        }
        .site-footer friend-link a:hover {
            color: #1b5e20;
        }
        .copyright {
            font-size: 0.9rem;
            color: #7a6f5c;
            text-align: center;
            padding-top: 1rem;
            border-top: 1px solid #e0d9ce;
        }
        .copyright strong {
            color: #2d4a2d;
        }
        @media (max-width: 880px) {
            .content-area {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                position: static;
                order: 2;
            }
            .container {
                padding: 1.2rem 1rem 1.8rem;
                border-radius: 20px;
            }
            h1 {
                font-size: 2.1rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .nav-bar {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 1rem 0 0.5rem 0;
                border-top: 1px solid #e0d9ce;
                margin-top: 0.8rem;
            }
            .nav-bar.open {
                display: flex;
            }
            .nav-bar a {
                width: 100%;
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            .site-header {
                align-items: center;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .form-card {
                padding: 1.2rem 1rem;
            }
            .hero-img-wrap img {
                aspect-ratio: 4/3;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 1rem 0.8rem 1.5rem;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            p {
                font-size: 0.98rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .btn {
                padding: 0.6rem 1.5rem;
                font-size: 0.9rem;
            }
            .star-input label {
                font-size: 1.6rem;
            }
        }
        @media print {
            .site-header,
            .breadcrumb,
            .sidebar-widget,
            .form-card,
            .site-footer friend-link {
                break-inside: avoid;
            }
            .content-sidebar {
                position: static;
            }
            .btn {
                background: #ccc !important;
                color: #000 !important;
            }
        }
        .scroll-offset {
            scroll-margin-top: 2rem;
        }