*,
        *::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, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8f5f0;
            color: #2d2a24;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #3e7d5e;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #1f4d36;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #2a5c3f 0%, #1d4230 100%);
            padding: 0.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #faeecb;
            letter-spacing: -0.5px;
            text-shadow: 2px 2px 0 #1f3d2c;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f5d98a;
        }
        .my-logo:hover {
            color: #fff2d6;
            text-decoration: none;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            color: #e6f0e9;
            font-weight: 500;
            padding: 0.5rem 0.9rem;
            border-radius: 40px;
            font-size: 0.95rem;
            transition: background 0.25s, color 0.25s;
        }
        .nav-bar a:hover,
        .nav-bar a:focus {
            background: rgba(255, 255, 255, 0.18);
            color: #faeecb;
            text-decoration: none;
        }
        .nav-bar a.active {
            background: #f5d98a;
            color: #1d4230;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            font-size: 2rem;
            color: #faeecb;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .nav-overlay {
            display: none;
        }
        .breadcrumb-wrap {
            background: #ede7dd;
            padding: 0.6rem 0;
            border-bottom: 1px solid #d6cdbc;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.6rem;
            font-size: 0.9rem;
            color: #5f5a50;
        }
        .breadcrumb a {
            color: #3e7d5e;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #9a8f7a;
        }
        .breadcrumb .current {
            color: #2d2a24;
            font-weight: 600;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            line-height: 1.2;
            color: #1d4230;
            margin-bottom: 0.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .article-body h2 {
            font-size: 1.9rem;
            color: #1d4230;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            border-left: 5px solid #f5d98a;
            padding-left: 1rem;
            font-weight: 700;
        }
        .article-body h3 {
            font-size: 1.4rem;
            color: #2d5a3f;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .article-body h4 {
            font-size: 1.15rem;
            color: #3e6d4f;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.4rem;
        }
        .article-body strong {
            color: #1d4230;
            font-weight: 700;
        }
        .feature-img {
            margin: 2rem 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .feature-img figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: #6b6558;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .highlight-box {
            background: #eaf3e8;
            border-left: 6px solid #f5d98a;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .insight-badge {
            display: inline-block;
            background: #f5d98a;
            color: #1d4230;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            letter-spacing: 0.3px;
            margin-right: 0.5rem;
        }
        .sidebar {
            background: #ffffffec;
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.05);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #1d4230;
            margin-bottom: 1rem;
            border-bottom: 2px solid #f5d98a;
            padding-bottom: 0.5rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 0.7rem;
        }
        .sidebar a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: #3e5d4a;
            font-weight: 500;
        }
        .sidebar a i {
            color: #f5d98a;
            font-size: 0.9rem;
            width: 1.2rem;
        }
        .sidebar a:hover {
            color: #1d4230;
            text-decoration: none;
        }
        @media(max-width:920px) {
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
        }
        .form-section {
            background: #f4efe7;
            border-radius: 20px;
            padding: 2rem 2rem 2.5rem;
            margin-top: 2.5rem;
        }
        .form-section h3 {
            font-size: 1.6rem;
            color: #1d4230;
            margin-bottom: 0.4rem;
        }
        .form-section p.sub {
            color: #5f5a50;
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            color: #2d2a24;
            margin-bottom: 0.3rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #d6cdbc;
            border-radius: 12px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.25s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #3e7d5e;
            outline: none;
            box-shadow: 0 0 0 4px rgba(62, 125, 94, 0.12);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-primary {
            background: #2a5c3f;
            color: #fff;
            border: none;
            padding: 0.9rem 2.2rem;
            border-radius: 40px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-primary:hover {
            background: #1d4230;
            transform: translateY(-2px);
        }
        .btn-primary i {
            font-size: 1.1rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #d6cdbc;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            transition: color 0.2s;
            color: #d6cdbc;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f5c542;
        }
        .form-row-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        @media(max-width:600px) {
            .form-row-2 {
                grid-template-columns: 1fr;
            }
        }
        .site-footer {
            background: #1d3b2c;
            color: #d6e0d4;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media(max-width:700px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media(max-width:480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #f5d98a;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .footer-col p,
        .footer-col a {
            color: #c6d4c4;
            font-size: 0.95rem;
        }
        .footer-col a:hover {
            color: #f5d98a;
        }
        friend-link {
            display: block;
            padding: 1rem 0 0.5rem;
            border-top: 1px solid #3d5d4a;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #c6d4c4;
            margin: 0 0.6rem 0 0;
        }
        friend-link a:hover {
            color: #f5d98a;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            font-size: 0.9rem;
            color: #8fa893;
            border-top: 1px solid #3d5d4a;
        }
        .copyright strong {
            color: #d6e0d4;
        }
        .last-updated {
            display: inline-block;
            background: #ede7dd;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #5f5a50;
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
            color: #3e7d5e;
        }
        @media(max-width:768px) {
            .hamburger {
                display: block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #1d4230;
                padding: 1rem 0.5rem;
                border-radius: 16px;
                margin-top: 0.5rem;
            }
            .nav-bar.open {
                display: flex;
            }
            .nav-bar a {
                width: 100%;
                padding: 0.7rem 1.2rem;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .form-section {
                padding: 1.5rem 1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
        }
        @media(max-width:480px) {
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }
        .fade-in {
            animation: fadeUp 0.6s ease forwards;
        }
        @keyframes fadeUp {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #2a5c3f;
            color: #fff;
            border: none;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            transition: background 0.25s, transform 0.2s;
            opacity: 0.9;
            z-index: 99;
        }
        .scroll-top:hover {
            background: #1d4230;
            transform: scale(1.05);
            opacity: 1;
        }
        @media(max-width:600px) {
            .scroll-top {
                bottom: 1rem;
                right: 1rem;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }