*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --green: #6aaa64;
            --green-dark: #538d4e;
            --yellow: #c9b458;
            --yellow-dark: #b59f3a;
            --gray: #787c7e;
            --gray-light: #d3d6da;
            --gray-bg: #f8f9fa;
            --dark: #1a1a1b;
            --white: #ffffff;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            color: var(--dark);
            background: var(--white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--green-dark);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--green);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: var(--white);
            border-bottom: 2px solid var(--gray-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 16px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            text-decoration: none;
            color: var(--green-dark);
        }
        .my-logo .logo-icon {
            font-size: 2rem;
            color: var(--green);
        }
        .my-logo .logo-highlight {
            color: var(--green);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--gray-bg);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--dark);
            transition: background var(--transition), color var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: var(--green);
            color: var(--white);
            text-decoration: none;
        }
        .breadcrumb-wrap {
            background: var(--gray-bg);
            padding: 10px 0;
            border-bottom: 1px solid var(--gray-light);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--gray);
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: var(--gray);
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--green-dark);
        }
        .breadcrumb .current {
            color: var(--gray);
            font-weight: 500;
        }
        .hero {
            padding: 48px 0 40px;
            text-align: center;
            background: linear-gradient(135deg, #f0f7ee 0%, #e8f5e6 100%);
            border-bottom: 2px solid var(--gray-light);
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
            color: var(--dark);
            margin-bottom: 16px;
        }
        .hero h1 .highlight {
            color: var(--green);
        }
        .hero p {
            font-size: 1.2rem;
            color: #4a4a4a;
            max-width: 720px;
            margin: 0 auto 20px;
        }
        .hero .meta {
            font-size: 0.9rem;
            color: var(--gray);
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero .meta i {
            margin-right: 4px;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 48px 0 64px;
        }
        .main-content {
            min-width: 0;
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 4px solid var(--green);
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #2d2d2d;
            margin: 32px 0 12px;
        }
        .main-content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3a3a3a;
            margin: 24px 0 8px;
        }
        .main-content p {
            margin-bottom: 16px;
            font-size: 1.05rem;
            color: #2c2c2c;
        }
        .main-content ul,
        .main-content ol {
            margin: 12px 0 20px 24px;
        }
        .main-content li {
            margin-bottom: 8px;
            font-size: 1.02rem;
        }
        .main-content .card {
            background: var(--gray-bg);
            border-left: 4px solid var(--green);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .main-content .card.warning {
            border-left-color: var(--yellow);
        }
        .main-content .card.tip {
            border-left-color: #4a90d9;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            aspect-ratio: 1200/630;
            object-fit: cover;
            background: #e0e0e0;
        }
        .featured-image figcaption {
            padding: 12px 16px;
            background: var(--gray-bg);
            font-size: 0.9rem;
            color: var(--gray);
            text-align: center;
            border-bottom-left-radius: var(--radius);
            border-bottom-right-radius: var(--radius);
        }
        .table-of-contents {
            background: var(--gray-bg);
            padding: 24px 28px;
            border-radius: var(--radius);
            margin: 32px 0;
            border: 1px solid var(--gray-light);
        }
        .table-of-contents h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .table-of-contents ul {
            list-style: none;
            margin: 12px 0 0;
            padding: 0;
        }
        .table-of-contents li {
            padding: 4px 0;
        }
        .table-of-contents a {
            color: var(--green-dark);
            font-weight: 500;
        }
        .table-of-contents a:hover {
            color: var(--green);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-widget {
            background: var(--gray-bg);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--gray-light);
        }
        .sidebar-widget h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            margin: 0;
        }
        .sidebar-widget li {
            padding: 6px 0;
            border-bottom: 1px solid #e8e8e8;
        }
        .sidebar-widget li:last-child {
            border-bottom: none;
        }
        .sidebar-widget a {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border var(--transition);
        }
        .search-form input:focus {
            border-color: var(--green);
        }
        .search-form button {
            padding: 10px 20px;
            background: var(--green);
            color: var(--white);
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-form button:hover {
            background: var(--green-dark);
        }
        .interaction-section {
            margin-top: 48px;
            padding-top: 40px;
            border-top: 2px solid var(--gray-light);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .interaction-card {
            background: var(--gray-bg);
            padding: 28px;
            border-radius: var(--radius);
            border: 1px solid var(--gray-light);
        }
        .interaction-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interaction-card input,
        .interaction-card textarea {
            padding: 10px 14px;
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border var(--transition);
            resize: vertical;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus {
            border-color: var(--green);
        }
        .interaction-card textarea {
            min-height: 80px;
        }
        .interaction-card button {
            padding: 12px 24px;
            background: var(--green);
            color: var(--white);
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition);
        }
        .interaction-card button:hover {
            background: var(--green-dark);
        }
        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.8rem;
            color: var(--gray-light);
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            transition: color var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: var(--yellow);
        }
        friend-link {
            display: block;
            padding: 40px 0 24px;
            border-top: 2px solid var(--gray-light);
            margin-top: 48px;
        }
        friend-link h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--dark);
        }
        friend-link .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        friend-link .friend-list li {
            margin: 0;
        }
        friend-link .friend-list a {
            font-weight: 500;
            color: var(--green-dark);
            font-size: 0.95rem;
        }
        friend-link .friend-list a:hover {
            color: var(--green);
        }
        .site-footer {
            background: #1a1a1b;
            color: #ccc;
            padding: 32px 0 24px;
            margin-top: 32px;
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
            text-align: center;
        }
        .site-footer .copyright {
            font-size: 0.9rem;
            color: #999;
        }
        .site-footer .copyright a {
            color: var(--green);
        }
        .site-footer .footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            justify-content: center;
        }
        .site-footer .footer-nav a {
            color: #bbb;
            font-size: 0.9rem;
        }
        .site-footer .footer-nav a:hover {
            color: var(--green);
        }
        @media (max-width: 1024px) {
            .content-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 10px 0;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 12px 24px 20px;
                border-bottom: 2px solid var(--gray-light);
                box-shadow: var(--shadow);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-wrap {
                padding: 28px 0 40px;
            }
            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.25rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .hero {
                padding: 32px 0 28px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .main-content p {
                font-size: 0.98rem;
            }
            .interaction-card {
                padding: 20px;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .text-green {
            color: var(--green);
        }
        .text-yellow {
            color: var(--yellow);
        }
        .fw-700 {
            font-weight: 700;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-center {
            align-items: center;
        }