*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a3c34;
            --secondary: #2ecc71;
            --accent: #f1c40f;
            --bg: #f4f7f6;
            --card: #ffffff;
            --text: #1e2a2a;
            --text-light: #4a6a6a;
            --border: #d0dfde;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1.05rem;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--card);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 20px;
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 1.8rem;
        }
        .my-logo:hover {
            color: var(--secondary);
        }
        .my-logo span {
            font-weight: 300;
            color: var(--text-light);
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }
        .nav-list a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-list a:hover {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
        }
        .breadcrumb {
            background: var(--card);
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .breadcrumb-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
            margin: 0 4px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .hero {
            padding: 50px 20px 30px;
            text-align: center;
            background: linear-gradient(145deg, #ffffff 0%, #e8f5ee 100%);
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero h1 i {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 780px;
            margin: 0 auto 24px;
        }
        .hero-meta {
            font-size: 0.9rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        .hero-meta i {
            margin-right: 6px;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px 60px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .main-column h2 {
            font-size: 2rem;
            color: var(--primary);
            margin-top: 48px;
            margin-bottom: 18px;
            border-bottom: 4px solid var(--secondary);
            padding-bottom: 8px;
            display: inline-block;
        }
        .main-column h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-top: 36px;
            margin-bottom: 12px;
        }
        .main-column h4 {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-top: 24px;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .main-column p {
            margin-bottom: 18px;
            color: var(--text);
        }
        .main-column ul,
        .main-column ol {
            margin: 12px 0 20px 24px;
        }
        .main-column li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: var(--card);
            border-left: 6px solid var(--secondary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .highlight-box strong {
            color: var(--primary);
        }
        .image-wrapper {
            margin: 28px 0;
            text-align: center;
        }
        .image-wrapper img {
            max-width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .image-wrapper figcaption {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 28px;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 14px;
            border-bottom: 2px solid var(--border);
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 18px 0;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: var(--secondary);
        }
        .search-form button {
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 12px 24px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #27ae60;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 32px 0;
        }
        .feedback-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }
        .feedback-card h4 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: 0.2s;
            background: #fafafa;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--secondary);
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
        }
        .feedback-card button:hover {
            background: #0f2a24;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        friend-link {
            display: block;
            padding: 40px 20px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        friend-link h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 18px;
            border-bottom: 3px solid var(--border);
            padding-bottom: 8px;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            padding: 0;
        }
        friend-link li {
            margin: 0;
        }
        friend-link a {
            font-weight: 500;
        }
        footer {
            background: var(--primary);
            color: #d0e8e0;
            padding: 32px 20px;
            text-align: center;
            margin-top: 20px;
        }
        footer a {
            color: var(--accent);
        }
        footer a:hover {
            color: #fff;
        }
        footer .copyright {
            font-size: 0.9rem;
            opacity: 0.85;
            margin-top: 12px;
        }
        @media (max-width: 992px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 4px;
                padding: 12px 0 18px;
                border-top: 1px solid var(--border);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 10px 0;
                border-bottom: 1px solid var(--border);
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 10px 16px;
            }
            .container {
                padding: 0 14px;
            }
            .content-wrap {
                padding: 20px 14px 40px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .main-column h2 {
                font-size: 1.5rem;
            }
            .main-column h3 {
                font-size: 1.25rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--secondary);
            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(46, 204, 113, 0.3);
            cursor: pointer;
            transition: 0.25s;
            border: none;
            z-index: 99;
        }
        .scroll-top:hover {
            background: var(--primary);
            transform: translateY(-4px);
        }