*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f3ef;
            color: #2d2a24;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2e7d32;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1b5e20;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.3;
            color: #1a1a18;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #4caf50;
            padding-left: 1rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #c8e6c9;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #2e5a2e;
        }
        h4 {
            font-size: 1.15rem;
            color: #3d6b3d;
        }
        p {
            margin: 1rem 0;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
            border-radius: 20px;
            padding: 1.5rem 2rem 2rem;
            margin-top: 1.5rem;
            margin-bottom: 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.8rem;
            border-bottom: 2px solid #e8e5de;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #2e7d32;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #1b5e20, #4caf50);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #666;
            color: #666;
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2d2a24;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #e8e5de;
        }
        .navbar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem;
            align-items: center;
        }
        .navbar a {
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #2d2a24;
            transition: background 0.2s, color 0.2s;
        }
        .navbar a:hover {
            background: #2e7d32;
            color: #fff;
            text-decoration: none;
        }
        .navbar a i {
            margin-right: 0.3rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 1rem 0 0.5rem;
            margin: 0;
            font-size: 0.9rem;
            color: #666;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.6rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #2e7d32;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .active {
            color: #444;
            font-weight: 500;
        }
        .search-wrap {
            background: #f0eee9;
            border-radius: 50px;
            padding: 0.2rem 0.2rem 0.2rem 1.2rem;
            display: flex;
            align-items: center;
            max-width: 400px;
            margin: 1.2rem 0;
            border: 1px solid #ddd8cf;
            transition: box-shadow 0.3s;
        }
        .search-wrap:focus-within {
            box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.2);
            border-color: #4caf50;
        }
        .search-wrap input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.6rem 0;
            font-size: 1rem;
            outline: none;
            color: #2d2a24;
        }
        .search-wrap button {
            background: #2e7d32;
            border: none;
            color: #fff;
            padding: 0.55rem 1.4rem;
            border-radius: 50px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            font-weight: 600;
        }
        .search-wrap button:hover {
            background: #1b5e20;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #faf8f5;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #e8e5de;
            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: 2rem;
            color: #4caf50;
            margin-bottom: 0.6rem;
        }
        .feature-card h3 {
            margin-top: 0.2rem;
        }
        .version-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.98rem;
            background: #faf8f5;
            border-radius: 12px;
            overflow: hidden;
        }
        .version-table th {
            background: #2e7d32;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .version-table td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid #e8e5de;
        }
        .version-table tr:last-child td {
            border-bottom: none;
        }
        .version-table tr:hover td {
            background: #edebe6;
        }
        .interview-block {
            background: #e8f5e9;
            border-left: 5px solid #2e7d32;
            padding: 1.5rem 1.8rem;
            border-radius: 12px;
            margin: 2rem 0;
        }
        .interview-block cite {
            display: block;
            margin-top: 0.8rem;
            font-style: normal;
            font-weight: 600;
            color: #1b5e20;
        }
        .interview-block i {
            color: #2e7d32;
            margin-right: 0.3rem;
        }
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            justify-content: space-around;
            background: #1a1a18;
            color: #f5f3ef;
            border-radius: 16px;
            padding: 2rem 1.5rem;
            margin: 2rem 0;
        }
        .stats-row .stat-item {
            text-align: center;
            flex: 1 1 140px;
        }
        .stats-row .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #81c784;
            display: block;
        }
        .stats-row .stat-item .label {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
            background: #faf8f5;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            border: 1px solid #e8e5de;
        }
        .feedback-form label {
            display: block;
            font-weight: 600;
            margin-top: 1rem;
            margin-bottom: 0.2rem;
            font-size: 0.95rem;
        }
        .feedback-form input,
        .feedback-form textarea,
        .feedback-form select {
            width: 100%;
            padding: 0.6rem 0.8rem;
            border: 1px solid #ddd8cf;
            border-radius: 10px;
            font-size: 1rem;
            background: #fff;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .feedback-form input:focus,
        .feedback-form textarea:focus,
        .feedback-form select:focus {
            border-color: #4caf50;
            outline: none;
            box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.15);
        }
        .feedback-form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-form .btn-submit {
            background: #2e7d32;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            margin-top: 1rem;
            transition: background 0.2s;
        }
        .feedback-form .btn-submit:hover {
            background: #1b5e20;
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            color: #e0d6c8;
            cursor: pointer;
            margin: 0.4rem 0;
        }
        .rating-stars i.active {
            color: #f9a825;
        }
        .rating-stars i:hover {
            color: #f9a825;
            transform: scale(1.1);
        }
        .site-footer {
            margin-top: 2.5rem;
            padding-top: 1.8rem;
            border-top: 2px solid #e8e5de;
            font-size: 0.95rem;
            color: #555;
        }
        .site-footer friend-link {
            display: block;
            margin: 0.8rem 0;
            font-weight: 500;
        }
        .site-footer friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
            padding: 0.2rem 0.8rem;
            background: #f0eee9;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        .site-footer friend-link a:hover {
            background: #c8e6c9;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding: 1.2rem 0 0.5rem;
            font-size: 0.88rem;
            color: #777;
            border-top: 1px solid #e8e5de;
            margin-top: 1.2rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 1rem 1.2rem 1.5rem;
                margin-top: 0.8rem;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.8rem;
                padding-left: 0.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #faf8f5;
                padding: 0.8rem 0.4rem;
                border-radius: 12px;
                margin-top: 0.6rem;
                border: 1px solid #e8e5de;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                padding: 0.5rem 1rem;
                border-radius: 8px;
                width: 100%;
            }
            .user-feedback {
                grid-template-columns: 1fr;
                padding: 1.2rem;
            }
            .stats-row .stat-item .num {
                font-size: 2rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .search-wrap {
                max-width: 100%;
            }
            .version-table {
                font-size: 0.85rem;
            }
            .version-table th,
            .version-table td {
                padding: 0.5rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.4rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.2rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        .text-muted {
            color: #777;
            font-size: 0.92rem;
        }
        .last-updated {
            display: inline-block;
            background: #e8e5de;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #444;
            margin-bottom: 1rem;
        }
        .article-image {
            margin: 1.8rem 0;
            border-radius: 14px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .highlight {
            background: #e8f5e9;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #2e7d32;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transition: transform 0.2s, background 0.2s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            background: #1b5e20;
            transform: translateY(-3px);
        }
        @media (max-width: 600px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
        }