*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Noto Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #a93226;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a3a2a 0%, #2d5a3e 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f7d44a;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f7d44a;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: #ff6b35;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #ececec;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.25s, color 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #f7d44a;
            text-decoration: none;
        }
        .nav-list li a i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid #e2e8f0;
            font-size: 0.92rem;
            color: #5a6a7a;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 10px;
            color: #c0c8d4;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2d5a3e;
        }
        .breadcrumb .current {
            color: #7f8c8d;
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .article-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: #fff;
            border-radius: 24px;
            padding: 36px 36px 48px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
        }
        @media (max-width: 600px) {
            article {
                padding: 20px 16px 32px;
            }
        }
        article h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #1a3a2a;
            line-height: 1.15;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        article h1 i {
            color: #f39c12;
            margin-right: 10px;
        }
        .meta-top {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            color: #6b7a8a;
            font-size: 0.95rem;
            border-bottom: 1px solid #eef2f6;
            padding-bottom: 18px;
            margin-bottom: 28px;
        }
        .meta-top i {
            margin-right: 6px;
            color: #c0392b;
        }
        .last-updated {
            font-weight: 600;
            color: #2d5a3e;
        }
        article h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #1a3a2a;
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 5px solid #f7d44a;
        }
        article h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #2d5a3e;
            margin: 30px 0 12px;
        }
        article h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #34495e;
            margin: 22px 0 10px;
        }
        article p {
            margin-bottom: 18px;
            color: #2c3e50;
        }
        article ul,
        article ol {
            margin: 12px 0 22px 24px;
            color: #2c3e50;
        }
        article li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 6px solid #f7d44a;
            padding: 18px 22px;
            border-radius: 0 14px 14px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #c0392b;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .feature-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 20px 16px;
            text-align: center;
            border: 1px solid #e8edf4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.07);
        }
        .feature-card i {
            font-size: 2.2rem;
            color: #c0392b;
            margin-bottom: 10px;
        }
        .feature-card h4 {
            margin: 6px 0 4px;
            font-size: 1rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: #5a6a7a;
            margin: 0;
        }
        .image-wrapper {
            margin: 30px 0;
            background: #f0f4f9;
            border-radius: 16px;
            padding: 12px;
            text-align: center;
        }
        .image-wrapper img {
            border-radius: 12px;
            width: 100%;
            max-width: 780px;
            margin: 0 auto;
        }
        .image-wrapper figcaption {
            font-size: 0.88rem;
            color: #6b7a8a;
            margin-top: 10px;
            font-style: italic;
        }
        .table-responsive {
            overflow-x: auto;
            margin: 28px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fafcfe;
            border-radius: 14px;
            overflow: hidden;
        }
        thead {
            background: #1a3a2a;
            color: #fff;
        }
        th,
        td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        tbody tr:hover {
            background: #f0f6fc;
        }
        .interaction-area {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #eef2f6;
        }
        .interaction-area h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 5px;
            color: #2d5a3e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce4ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.25s;
            background: #fafcfe;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #2d5a3e;
            outline: none;
            box-shadow: 0 0 0 4px rgba(45, 90, 62, 0.12);
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background: #a93226;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: #2d5a3e;
        }
        .btn-secondary:hover {
            background: #1a3a2a;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #dce4ec;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #dce4ec;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7d44a;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 20px;
            padding: 24px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #1a3a2a;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: #c0392b;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar-link-list li {
            margin-bottom: 10px;
        }
        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: #f8fafc;
            border-radius: 12px;
            font-size: 0.92rem;
            transition: background 0.2s, transform 0.15s;
            color: #2c3e50;
        }
        .sidebar-link-list a:hover {
            background: #eef4ea;
            transform: translateX(4px);
            text-decoration: none;
            color: #1a3a2a;
        }
        .sidebar-link-list a i {
            color: #c0392b;
            font-size: 0.85rem;
        }
        footer {
            background: #0f1f18;
            color: #cfdfd6;
            padding: 40px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        footer h4 {
            color: #f7d44a;
            font-size: 1.1rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        footer a {
            color: #b0c7bb;
        }
        footer a:hover {
            color: #f7d44a;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 16px;
            padding: 18px 20px;
            margin: 16px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 0;
            font-size: 0.92rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            font-size: 0.88rem;
            text-align: center;
            color: #8fa89b;
        }
        .copyright strong {
            color: #cfdfd6;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a3a2a;
                padding: 12px 0 18px;
                border-radius: 0 0 20px 20px;
                margin-top: 12px;
                gap: 2px;
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 20px;
                border-radius: 0;
                font-size: 1rem;
            }
            .header-inner {
                align-items: center;
            }
            article h1 {
                font-size: 1.7rem;
            }
            article h2 {
                font-size: 1.35rem;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .meta-top {
                flex-direction: column;
                gap: 6px;
            }
        }
        @media (max-width: 480px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #c0392b;
            color: #fff;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 6px 20px rgba(192, 57, 43, 0.35);
            transition: transform 0.2s, opacity 0.3s;
            opacity: 0;
            pointer-events: none;
            z-index: 999;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
        }
        .search-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 160px;
            padding: 12px 18px;
            border: 2px solid #dce4ec;
            border-radius: 40px;
            font-size: 1rem;
            background: #fafcfe;
        }
        .search-form input:focus {
            border-color: #2d5a3e;
            outline: none;
        }
        .search-form .btn {
            border-radius: 40px;
            padding: 12px 26px;
        }