*,
        *::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, Roboto, sans-serif;
            background: #f5f2eb;
            color: #2c2c2c;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2d5016;
            text-decoration: underline;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #c9a84c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            color: #1e3a0e;
        }
        h1 {
            font-size: 2.2rem;
            margin: 1.5rem 0 0.75rem;
        }
        h2 {
            font-size: 1.7rem;
            margin: 2.2rem 0 0.8rem;
            border-left: 5px solid #c9a84c;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.3rem;
            margin: 1.8rem 0 0.5rem;
            color: #2d5016;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem;
            color: #3f6b28;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.2rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        hr {
            border: none;
            border-top: 2px solid #ddd;
            margin: 2rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border-radius: 20px;
            padding: 1.2rem 1.8rem 2rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0 1rem;
            border-bottom: 2px solid #e8e0d4;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #2d5016;
            background: linear-gradient(145deg, #2d5016, #4a7c2e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #c9a84c;
            font-size: 1.7rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            color: #2d5016;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #2d5016;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2d5016;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .nav-list {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #666;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.6rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #2d5016;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0 2.5rem;
        }
        .feature-card {
            background: #faf8f4;
            border-radius: 16px;
            padding: 1.4rem 1.2rem;
            border: 1px solid #e8e0d4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
        }
        .feature-card h3 {
            margin-top: 0;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .feature-card input,
        .feature-card textarea,
        .feature-card select {
            width: 100%;
            padding: 0.6rem 0.8rem;
            border: 1px solid #d5cdc0;
            border-radius: 8px;
            font-size: 0.95rem;
            background: #fff;
            margin: 0.4rem 0 0.6rem;
            transition: border 0.2s;
        }
        .feature-card input:focus,
        .feature-card textarea:focus,
        .feature-card select:focus {
            outline: none;
            border-color: #2d5016;
            box-shadow: 0 0 0 3px rgba(45, 80, 22, 0.15);
        }
        .feature-card textarea {
            min-height: 70px;
            resize: vertical;
        }
        .btn {
            background: #2d5016;
            color: #fff;
            border: none;
            padding: 0.55rem 1.4rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn:hover {
            background: #1e3a0e;
            transform: scale(1.02);
        }
        .btn-secondary {
            background: #c9a84c;
        }
        .btn-secondary:hover {
            background: #b8922e;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.2rem 0 0.6rem;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #2c2c2c;
        }
        .article-body .featured-img {
            margin: 1.8rem 0;
            border-radius: 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .highlight-box {
            background: #f0f7eb;
            border-left: 5px solid #2d5016;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box strong {
            color: #1e3a0e;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #ddd;
            text-align: left;
        }
        th {
            background: #2d5016;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f9f7f2;
        }
        footer {
            margin-top: 3rem;
            padding-top: 1.8rem;
            border-top: 2px solid #e8e0d4;
        }
        friend-link {
            display: block;
            background: #faf8f4;
            padding: 1.2rem 1.5rem;
            border-radius: 14px;
            border: 1px solid #e8e0d4;
            margin-bottom: 1.2rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            font-size: 0.9rem;
            color: #777;
            padding: 1rem 0 0.2rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 0.8rem 1rem 1.5rem;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
                padding-left: 0.7rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 0.8rem 0;
                border-top: 1px solid #e8e0d4;
                margin-top: 0.6rem;
            }
            .nav-list.open {
                display: flex;
            }
            nav {
                width: 100%;
                justify-content: space-between;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .article-body {
                font-size: 0.98rem;
            }
            table {
                font-size: 0.85rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none !important;
            }
            .nav-list {
                display: flex !important;
            }
        }
        .tag {
            display: inline-block;
            background: #eef4e8;
            color: #2d5016;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #888;
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0.5rem 0 1.2rem;
        }
        .toc {
            background: #f9f7f2;
            border: 1px solid #e8e0d4;
            border-radius: 14px;
            padding: 1.2rem 1.8rem;
            margin: 1.5rem 0 2rem;
        }
        .toc strong {
            font-size: 1.1rem;
            display: block;
            margin-bottom: 0.6rem;
        }
        .toc ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .toc li {
            padding: 0.2rem 0;
        }
        .toc a {
            text-decoration: none;
        }
        .toc a:hover {
            text-decoration: underline;
        }
        .inline-link {
            font-weight: 600;
        }