* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            border-radius: 24px 24px 0 0;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
            overflow: hidden;
            padding: 0 1.5rem 2rem;
        }
        .header {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 0;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0a4b33, #1b8a5e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            -webkit-text-fill-color: transparent;
        }
        .my-logo a:hover {
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #5a6a7a;
            -webkit-text-fill-color: #5a6a7a;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e2a3a;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #eef2f6;
        }
        .navbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.2rem;
        }
        .navbar a {
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #1e2a3a;
            transition: background 0.2s, color 0.2s;
        }
        .navbar a:hover {
            background: #e8f0fe;
            color: #0a4b33;
            text-decoration: none;
        }
        .navbar a.active {
            background: #0a4b33;
            color: #fff;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.5rem;
        }
        .breadcrumb a {
            color: #0066cc;
        }
        .breadcrumb span {
            color: #8a9aa8;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.8rem 0 0.8rem;
            color: #0a2a1a;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 2.8rem 0 1rem 0;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #dce5ed;
            color: #0a3a2a;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 2rem 0 0.8rem 0;
            color: #1a4a3a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.5rem 0 0.5rem 0;
            color: #2a5a4a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2a3a4a;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3a4a5a;
            background: #f0f4f9;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            border-left: 4px solid #0a4b33;
            margin-bottom: 1.8rem;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.5rem 1.2rem;
            border: 1px solid #e8edf2;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            font-size: 2rem;
            color: #0a4b33;
            margin-bottom: 0.6rem;
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .feature-card p {
            font-size: 0.95rem;
        }
        .image-wrapper {
            margin: 2.2rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f6;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
        }
        .image-wrapper figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #5a6a7a;
            background: #f8fafc;
            border-top: 1px solid #e8edf2;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
            border-radius: 12px;
            border: 1px solid #e8edf2;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
        }
        th {
            background: #0a4b33;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e8edf2;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:nth-child(even) td {
            background: #f8fafc;
        }
        blockquote {
            border-left: 4px solid #0a4b33;
            padding: 1rem 1.5rem;
            margin: 1.8rem 0;
            background: #f0f6f3;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2a4a3a;
        }
        blockquote cite {
            display: block;
            margin-top: 0.6rem;
            font-style: normal;
            font-weight: 600;
            color: #0a4b33;
        }
        ul,
        ol {
            margin: 1rem 0 1.2rem 1.8rem;
            font-size: 1.05rem;
            color: #2a3a4a;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .faq-item {
            border-bottom: 1px solid #e8edf2;
            padding: 1.2rem 0;
        }
        .faq-item h4 {
            margin-bottom: 0.3rem;
            color: #0a3a2a;
        }
        .faq-item p {
            margin-bottom: 0;
        }
        .search-box {
            display: flex;
            max-width: 520px;
            margin: 2rem 0 1.5rem;
            border-radius: 60px;
            overflow: hidden;
            border: 2px solid #dce5ed;
            transition: border-color 0.2s;
            background: #fff;
        }
        .search-box:focus-within {
            border-color: #0a4b33;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border: none;
            font-size: 1rem;
            outline: none;
            background: transparent;
            font-family: inherit;
        }
        .search-box button {
            background: #0a4b33;
            color: #fff;
            border: none;
            padding: 0 1.6rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: #0d3d2a;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
            background: #f8fafc;
            border-radius: 20px;
            padding: 2rem;
            border: 1px solid #e8edf2;
        }
        .feedback-section form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-section label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e2a3a;
        }
        .feedback-section input,
        .feedback-section textarea,
        .feedback-section select {
            padding: 0.7rem 1rem;
            border: 1px solid #dce5ed;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s;
        }
        .feedback-section input:focus,
        .feedback-section textarea:focus,
        .feedback-section select:focus {
            border-color: #0a4b33;
            outline: none;
        }
        .feedback-section textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-section .btn {
            background: #0a4b33;
            color: #fff;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-section .btn:hover {
            background: #0d3d2a;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #dce5ed;
            cursor: pointer;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.1s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5b342;
            transform: scale(1.1);
        }
        .footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #eef2f6;
        }
        .footer friend-link {
            display: block;
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: #0a3a2a;
        }
        .footer .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin-bottom: 1.2rem;
        }
        .footer .friend-links a {
            color: #0066cc;
            font-size: 0.95rem;
        }
        .footer .friend-links a:hover {
            text-decoration: underline;
        }
        .footer .copyright {
            font-size: 0.9rem;
            color: #6a7a8a;
            padding: 1.2rem 0 0.5rem;
            border-top: 1px solid #eef2f6;
            margin-top: 0.8rem;
            text-align: center;
        }
        .footer .copyright strong {
            color: #1e2a3a;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 0 1rem 1.5rem;
                border-radius: 16px 16px 0 0;
            }
            .header {
                padding: 0.8rem 0;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                padding: 0.8rem 0 0.4rem;
                border-top: 1px solid #eef2f6;
                margin-top: 0.6rem;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                padding: 0.6rem 0.8rem;
                border-radius: 8px;
                width: 100%;
            }
            h1 {
                font-size: 1.8rem;
                margin-top: 1rem;
            }
            h2 {
                font-size: 1.5rem;
                margin-top: 2rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            h4 {
                font-size: 1.1rem;
            }
            p {
                font-size: 0.98rem;
            }
            .lead {
                font-size: 1.05rem;
                padding: 1rem 1.2rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
                padding: 1.2rem;
                gap: 1.5rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .search-box {
                max-width: 100%;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 0.6rem 1rem;
            }
            .header {
                padding: 0.6rem 0;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .navbar a {
                font-size: 0.88rem;
                padding: 0.5rem 0.6rem;
            }
            .feedback-section .btn {
                width: 100%;
                text-align: center;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-sm {
            font-size: 0.92rem;
            color: #5a6a7a;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f6;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #4a5a6a;
            margin-bottom: 1rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
        }
        .table-wrap table th,
        .table-wrap table td {
            min-width: 120px;
        }
        :target {
            scroll-margin-top: 80px;
        }