* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f0f4f0;
            color: #1e2a1e;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #1b6b3a;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #0a3d1f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            color: #0f2b18;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1.2rem;
            border-bottom: 4px solid #2d8f4e;
            padding-bottom: 0.6rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.4rem 0 1rem 0;
            border-left: 6px solid #2d8f4e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            margin: 1.8rem 0 0.8rem 0;
            color: #1a4d2e;
        }
        h4 {
            font-size: 1.15rem;
            margin: 1.2rem 0 0.5rem 0;
            color: #2a6b3f;
        }
        p {
            margin-bottom: 1.1rem;
            font-size: 1.02rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0d2818, #1a4d2e);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #f5e9b2;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffd966;
        }
        .my-logo i {
            margin-right: 0.3rem;
            color: #ffd966;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            color: #f5e9b2;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 1.4rem;
            align-items: center;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-menu li a {
            color: #e2f0e6;
            font-weight: 500;
            padding: 0.3rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.25s, color 0.25s;
            font-size: 0.98rem;
        }
        .nav-menu li a:hover {
            color: #ffd966;
            border-bottom-color: #ffd966;
            text-decoration: none;
        }
        .nav-menu li a i {
            margin-right: 0.3rem;
            font-size: 0.9rem;
        }
        .breadcrumb-wrap {
            background: #e8efe8;
            padding: 0.6rem 0;
            border-bottom: 1px solid #c8dcc8;
            font-size: 0.92rem;
        }
        .breadcrumb-wrap ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-wrap ol li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #5a7a5a;
            font-weight: 600;
        }
        .breadcrumb-wrap a {
            color: #1b6b3a;
        }
        .breadcrumb-wrap .current {
            color: #0f2b18;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.2rem;
            margin: 2rem 0 3rem 0;
        }
        @media(max-width:920px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background: #fff;
            border-radius: 18px;
            padding: 2rem 2.2rem;
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.05);
        }
        @media(max-width:640px) {
            .content-area {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
        }
        .sidebar {
            background: #fff;
            border-radius: 18px;
            padding: 1.6rem 1.4rem;
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        @media(max-width:920px) {
            .sidebar {
                position: static;
            }
        }
        .sidebar h3 {
            font-size: 1.2rem;
            border-bottom: 3px solid #2d8f4e;
            padding-bottom: 0.4rem;
            margin-top: 0;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #e8efe8;
        }
        .sidebar ul li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar ul li a i {
            color: #2d8f4e;
            width: 1.2rem;
        }
        .feature-img {
            margin: 1.8rem 0 2.2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
            background: #e8efe8;
        }
        .feature-img img {
            width: 100%;
            aspect-ratio: 1200/630;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.92rem;
            color: #3d5a3d;
            background: #f5faf5;
            border-top: 1px solid #c8dcc8;
            font-style: italic;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            margin: 1.6rem 0 2rem 0;
            max-width: 520px;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #c8dcc8;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
            background: #f9fcf9;
        }
        .search-form input[type="text"]:focus {
            border-color: #2d8f4e;
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            background: #2d8f4e;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-form button:hover {
            background: #1a6b37;
            transform: scale(1.02);
        }
        .search-form button i {
            margin-right: 0.3rem;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.4rem 0 1.8rem 0;
            padding: 1.6rem 0;
            border-top: 2px solid #d8e8d8;
            border-bottom: 2px solid #d8e8d8;
        }
        @media(max-width:640px) {
            .user-feedback {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        .feedback-card {
            background: #f5faf5;
            padding: 1.2rem 1.4rem;
            border-radius: 14px;
            border: 1px solid #d8e8d8;
        }
        .feedback-card h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.1rem;
        }
        .feedback-card h4 i {
            color: #2d8f4e;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            margin-top: 0.6rem;
        }
        .feedback-card form input,
        .feedback-card form textarea {
            padding: 0.6rem 1rem;
            border: 2px solid #c8dcc8;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border-color 0.3s;
            background: #fff;
            resize: vertical;
        }
        .feedback-card form input:focus,
        .feedback-card form textarea:focus {
            border-color: #2d8f4e;
        }
        .feedback-card form textarea {
            min-height: 80px;
        }
        .feedback-card form button {
            padding: 0.6rem 1.4rem;
            background: #1b6b3a;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            align-self: flex-start;
        }
        .feedback-card form button:hover {
            background: #0f4d27;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin: 0.3rem 0 0.5rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #c8dcc8;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5b342;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4rem 0 2rem 0;
            font-size: 0.96rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.04);
        }
        .data-table th {
            background: #1a4d2e;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e8efe8;
            background: #fafcfa;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #e8f5e8;
        }
        .site-footer {
            background: #0d2818;
            color: #c8dcc8;
            padding: 2.2rem 0 1.8rem 0;
            margin-top: auto;
            border-top: 4px solid #2d8f4e;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media(max-width:740px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
        }
        .site-footer h4 {
            color: #f5e9b2;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #a8cfa8;
        }
        .site-footer a:hover {
            color: #ffd966;
        }
        .footer-copy {
            margin-top: 2rem;
            padding-top: 1.2rem;
            border-top: 1px solid #1f4d2e;
            font-size: 0.88rem;
            text-align: center;
            color: #8aaa8a;
        }
        friend-link {
            display: block;
            background: #132f1e;
            padding: 1.2rem 1.4rem;
            border-radius: 12px;
            margin-top: 0.8rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1rem 0.2rem 0;
            padding: 0.2rem 0;
            color: #b8d8b8;
        }
        friend-link a:hover {
            color: #ffd966;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f2b18;
                padding: 1rem 0.8rem;
                border-radius: 0 0 16px 16px;
                margin-top: 0.8rem;
                gap: 0.8rem;
                border-top: 2px solid #2d8f4e;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 0.5rem 0.8rem;
                display: block;
                border-radius: 8px;
            }
            .nav-menu li a:hover {
                background: rgba(255, 255, 255, 0.06);
                border-bottom-color: transparent;
            }
            .header-inner {
                align-items: center;
            }
        }
        .highlight-box {
            background: #f0f9f0;
            border-left: 5px solid #2d8f4e;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .highlight-box i {
            color: #2d8f4e;
            margin-right: 0.5rem;
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        .tag {
            display: inline-block;
            background: #e8efe8;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #1a4d2e;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #5a7a5a;
            margin-bottom: 1.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated i {
            color: #2d8f4e;
        }
        @media(max-width:920px) {
            .sidebar {
                margin-top: 1.6rem;
            }
        }
        .pro-tip {
            background: #fcf8e8;
            border: 1px solid #e8d8a8;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin: 1.2rem 0;
        }
        .pro-tip i {
            color: #c99f2e;
            margin-right: 0.5rem;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #2d8f4e;
            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, 0.2);
            transition: transform 0.2s, background 0.2s;
            z-index: 50;
        }
        .btn-top:hover {
            transform: translateY(-4px);
            background: #1a6b37;
            text-decoration: none;
            color: #fff;
        }
        @media(max-width:480px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }