*,
        *::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, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7f2;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #2b7a0b;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #1f5c07;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        :root {
            --duo-green: #58cc02;
            --duo-green-dark: #46a302;
            --duo-green-light: #b4f08a;
            --duo-bg: #f4f7f2;
            --duo-card: #ffffff;
            --duo-text: #1a1a2e;
            --duo-text-light: #4a4a6a;
            --duo-border: #d0d9cc;
            --duo-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --duo-radius: 16px;
            --duo-radius-sm: 8px;
            --duo-font: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
        }
        .site-header {
            background: var(--duo-card);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 3px solid var(--duo-green);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: 1200px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--duo-green-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: var(--duo-green);
        }
        .my-logo:hover {
            text-decoration: none;
            color: #1f5c07;
        }
        .my-logo span {
            font-weight: 300;
            color: var(--duo-text-light);
            font-size: 0.9rem;
            margin-left: 2px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--duo-text);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: var(--duo-green-light);
            color: #1f5c07;
            text-decoration: none;
        }
        .main-nav a.active {
            background: var(--duo-green);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--duo-text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e8ece6;
        }
        .breadcrumb {
            background: #eef2ea;
            padding: 12px 20px;
            font-size: 0.85rem;
            color: var(--duo-text-light);
            border-bottom: 1px solid var(--duo-border);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #999;
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--duo-green-dark);
        }
        .breadcrumb .current {
            color: var(--duo-text-light);
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #e3f0d8 0%, #cde5b6 100%);
            padding: 60px 20px 50px;
            text-align: center;
            border-bottom: 4px solid var(--duo-green);
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #1f5c07;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero h1 i {
            color: var(--duo-green);
        }
        .hero p {
            font-size: 1.2rem;
            color: #2d4a1a;
            max-width: 720px;
            margin: 0 auto 20px;
            font-weight: 400;
        }
        .hero .meta-info {
            font-size: 0.9rem;
            color: #3d5a2a;
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero .meta-info i {
            margin-right: 6px;
        }
        .search-section {
            background: var(--duo-card);
            padding: 24px 20px;
            box-shadow: var(--duo-shadow);
            margin-top: -20px;
            border-radius: var(--duo-radius);
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 30px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid var(--duo-border);
            border-radius: 60px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
            background: #fafcfa;
        }
        .search-form input[type="text"]:focus {
            border-color: var(--duo-green);
        }
        .search-form button {
            padding: 14px 32px;
            background: var(--duo-green);
            color: #fff;
            border: none;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--duo-green-dark);
            transform: scale(1.02);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px 60px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--duo-card);
            border-radius: var(--duo-radius);
            padding: 24px;
            box-shadow: var(--duo-shadow);
            margin-bottom: 24px;
            border: 1px solid #e8eee4;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #1f5c07;
            margin-bottom: 14px;
            border-bottom: 2px solid var(--duo-green-light);
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            padding: 6px 0;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--duo-text);
            font-weight: 500;
            font-size: 0.92rem;
            padding: 6px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .sidebar-card li a:hover {
            background: #edf4e8;
            text-decoration: none;
        }
        .sidebar-card li a i {
            color: var(--duo-green);
            width: 20px;
            text-align: center;
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1f5c07;
            margin-top: 48px;
            margin-bottom: 16px;
            border-left: 6px solid var(--duo-green);
            padding-left: 18px;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2d6b13;
            margin-top: 36px;
            margin-bottom: 12px;
            padding-left: 4px;
        }
        .main-content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3d5a2a;
            margin-top: 28px;
            margin-bottom: 8px;
        }
        .main-content p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2a2a3e;
        }
        .main-content strong {
            color: #1f5c07;
            font-weight: 700;
        }
        .main-content ul,
        .main-content ol {
            margin-bottom: 20px;
            font-size: 1.02rem;
        }
        .main-content li {
            margin-bottom: 6px;
        }
        .main-content .feature-box {
            background: #edf4e8;
            border-radius: var(--duo-radius);
            padding: 28px 30px;
            margin: 30px 0;
            border-left: 6px solid var(--duo-green);
        }
        .main-content .feature-box h3 {
            margin-top: 0;
        }
        .main-content .feature-box i {
            color: var(--duo-green);
            margin-right: 8px;
        }
        .main-content .img-wrapper {
            margin: 32px 0;
            border-radius: var(--duo-radius);
            overflow: hidden;
            box-shadow: var(--duo-shadow);
            background: #eef2ea;
            padding: 12px;
        }
        .main-content .img-wrapper figcaption {
            font-size: 0.9rem;
            color: var(--duo-text-light);
            text-align: center;
            padding: 12px 0 4px;
            font-style: italic;
        }
        .rating-section,
        .comment-section {
            background: var(--duo-card);
            border-radius: var(--duo-radius);
            padding: 32px 30px;
            box-shadow: var(--duo-shadow);
            margin: 40px 0;
            border: 1px solid #e8eee4;
        }
        .rating-section h3,
        .comment-section h3 {
            margin-top: 0;
            font-size: 1.6rem;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 16px 0 20px;
            flex-wrap: wrap;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f5b342;
            transform: scale(1.1);
        }
        .rating-form textarea,
        .comment-form textarea {
            width: 100%;
            padding: 16px 18px;
            border: 2px solid var(--duo-border);
            border-radius: var(--duo-radius-sm);
            font-family: var(--duo-font);
            font-size: 1rem;
            resize: vertical;
            min-height: 100px;
            transition: border-color 0.2s;
            background: #fafcfa;
        }
        .rating-form textarea:focus,
        .comment-form textarea:focus {
            border-color: var(--duo-green);
            outline: none;
        }
        .rating-form input[type="text"],
        .comment-form input[type="text"] {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--duo-border);
            border-radius: var(--duo-radius-sm);
            font-size: 1rem;
            margin-bottom: 14px;
            background: #fafcfa;
            transition: border-color 0.2s;
        }
        .rating-form input[type="text"]:focus,
        .comment-form input[type="text"]:focus {
            border-color: var(--duo-green);
            outline: none;
        }
        .btn-submit {
            padding: 14px 36px;
            background: var(--duo-green);
            color: #fff;
            border: none;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-top: 8px;
        }
        .btn-submit:hover {
            background: var(--duo-green-dark);
            transform: scale(1.02);
        }
        .site-footer {
            background: #1f2a18;
            color: #d4e0cc;
            padding: 48px 20px 30px;
            border-top: 6px solid var(--duo-green);
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-inner h4 {
            color: #b4f08a;
            font-size: 1.2rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-inner p,
        .footer-inner li {
            font-size: 0.95rem;
            color: #c5d6bb;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            padding: 4px 0;
        }
        .footer-inner a {
            color: #b4f08a;
        }
        .footer-inner a:hover {
            color: #d9f5c0;
            text-decoration: underline;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 30px auto 0;
            padding-top: 24px;
            border-top: 1px solid #3d5a2a;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.9rem;
            color: #a0b898;
        }
        .footer-bottom a {
            color: #b4f08a;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            color: #b4f08a;
        }
        friend-link a:hover {
            color: #d9f5c0;
        }
        @media (max-width: 1024px) {
            .content-wrapper {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .sidebar .sidebar-card:last-child {
                grid-column: 1 / -1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 12px 16px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 16px 0 8px;
                border-top: 1px solid var(--duo-border);
                margin-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero {
                padding: 40px 16px 36px;
            }
            .search-section {
                padding: 16px;
                margin: -16px 12px 20px;
            }
            .search-form input[type="text"] {
                min-width: 140px;
                padding: 12px 16px;
            }
            .search-form button {
                padding: 12px 24px;
            }
            .content-wrapper {
                padding: 24px 16px 40px;
                gap: 20px;
            }
            .main-content h2 {
                font-size: 1.6rem;
                margin-top: 36px;
            }
            .main-content h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .rating-section,
            .comment-section {
                padding: 20px 16px;
            }
            .star-rating {
                font-size: 1.6rem;
            }
            .breadcrumb ol {
                padding: 0 12px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero .meta-info {
                font-size: 0.8rem;
                gap: 12px;
            }
            .my-logo {
                font-size: 1.1rem;
            }
            .my-logo span {
                font-size: 0.7rem;
            }
            .main-content h2 {
                font-size: 1.3rem;
                padding-left: 12px;
            }
            .main-content p {
                font-size: 0.95rem;
            }
            .btn-submit {
                width: 100%;
                justify-content: center;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        :focus-visible {
            outline: 3px solid var(--duo-green);
            outline-offset: 2px;
        }
        .text-green {
            color: var(--duo-green-dark);
        }
        .fw-700 {
            font-weight: 700;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-center {
            align-items: center;
        }