* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a7a3a;
            --primary-light: #2ecc71;
            --primary-dark: #0f4d24;
            --secondary: #f39c12;
            --bg: #fafaf5;
            --bg-card: #ffffff;
            --text: #1e2a2e;
            --text-light: #4a5a5e;
            --border: #dce4e0;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --radius-sm: 10px;
            --font: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: var(--bg-card);
            border-bottom: 2px solid var(--border);
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            font-size: 1.6rem;
            color: var(--secondary);
        }
        .my-logo span {
            color: var(--text);
            font-weight: 300;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
        }
        .nav-list li a {
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text);
            transition: background 0.25s, color 0.25s;
        }
        .nav-list li a:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .nav-list li a.active {
            background: var(--primary-light);
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--text);
            border-radius: 4px;
            transition: 0.3s;
        }
        .hamburger:hover {
            background: var(--border);
        }
        .breadcrumb {
            background: var(--bg-card);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb ol li {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-light);
        }
        .breadcrumb ol li+li::before {
            content: "›";
            color: var(--text-light);
            font-weight: 600;
            margin-right: 6px;
        }
        .breadcrumb ol li a {
            color: var(--primary);
        }
        .breadcrumb ol li a:hover {
            text-decoration: underline;
        }
        .breadcrumb ol li:last-child {
            font-weight: 600;
            color: var(--text);
        }
        main {
            padding: 32px 0 60px;
        }
        .article-header {
            text-align: center;
            padding: 32px 0 24px;
        }
        .article-header h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .article-header h1 i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .article-meta span i {
            margin-right: 6px;
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 28px;
        }
        .content-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 40px;
            box-shadow: var(--shadow);
        }
        .content-main h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-top: 40px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--primary-light);
        }
        .content-main h2:first-of-type {
            margin-top: 0;
        }
        .content-main h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 28px;
            margin-bottom: 10px;
        }
        .content-main h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 20px;
            margin-bottom: 6px;
        }
        .content-main p {
            margin-bottom: 18px;
            color: var(--text);
        }
        .content-main p strong {
            color: var(--primary-dark);
        }
        .content-main ul,
        .content-main ol {
            margin: 12px 0 20px 24px;
        }
        .content-main li {
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .content-main .emoji-big {
            font-size: 1.4rem;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--border);
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--bg);
            font-style: italic;
        }
        .callout {
            background: #e8f5e9;
            border-left: 5px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .callout i {
            color: var(--primary);
            margin-right: 8px;
        }
        .callout strong {
            color: var(--primary-dark);
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            padding: 12px 0;
            list-style: none;
        }
        .link-list-inline li a {
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            border: 1px solid var(--border);
            transition: all 0.2s;
        }
        .link-list-inline li a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            text-decoration: none;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 14px;
            border-bottom: 2px solid var(--border);
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li a {
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.92rem;
        }
        .sidebar-card ul li a i {
            margin-right: 8px;
            color: var(--secondary);
            width: 18px;
            text-align: center;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-box input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
            transition: border 0.25s;
            background: var(--bg);
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
        }
        .search-box button:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .comment-section,
        .rating-section {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 2px solid var(--border);
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
        }
        .comment-section textarea,
        .rating-section textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: var(--font);
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.25s;
            background: var(--bg);
        }
        .comment-section textarea:focus,
        .rating-section textarea:focus {
            border-color: var(--primary);
        }
        .comment-section input,
        .rating-section input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: var(--bg);
            margin-top: 10px;
        }
        .comment-section input:focus,
        .rating-section input:focus {
            border-color: var(--primary);
        }
        .comment-section .btn-submit,
        .rating-section .btn-submit {
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            margin-top: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .comment-section .btn-submit:hover,
        .rating-section .btn-submit:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 8px 0 12px;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: var(--secondary);
            transform: scale(1.12);
        }
        footer {
            background: var(--primary-dark);
            color: #e8f0e8;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 28px;
        }
        footer h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        footer p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: #c8d8d0;
        }
        footer a {
            color: #b8e0c8;
        }
        footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        footer ul {
            list-style: none;
            padding: 0;
        }
        footer ul li {
            margin-bottom: 8px;
        }
        footer ul li a {
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 16px;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 30px;
            font-size: 0.85rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: #a0b8a8;
        }
        .copyright strong {
            color: #d0e8d8;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: var(--bg-card);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.3s ease;
                pointer-events: none;
                border-bottom: 3px solid var(--primary-light);
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list li a {
                font-size: 1rem;
                padding: 12px 20px;
                border-radius: 10px;
                display: block;
            }
            .hamburger {
                display: flex;
            }
            .article-header h1 {
                font-size: 1.7rem;
            }
            .content-main {
                padding: 24px 18px;
            }
            .content-main h2 {
                font-size: 1.35rem;
            }
            .content-main h3 {
                font-size: 1.1rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb ol {
                font-size: 0.78rem;
                padding: 0 14px;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 1.35rem;
            }
            .content-main {
                padding: 18px 14px;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                width: 100%;
                justify-content: center;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .gap-2 {
            gap: 12px;
        }
        .items-center {
            align-items: center;
        }