* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3c34;
            --primary-light: #2a5c4a;
            --accent: #e8b84b;
            --accent-hover: #d4a43a;
            --bg: #f7f6f2;
            --card: #ffffff;
            --text: #1e1e1e;
            --text-light: #4a4a4a;
            --border: #d4d0c8;
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', Roboto, 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: 16px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--primary);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--accent);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .my-logo:hover {
            text-decoration: none;
            color: var(--accent);
        }
        .my-logo i {
            font-size: 30px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #f0ede8;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .nav-list li a:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 26px;
            cursor: pointer;
            padding: 4px 8px;
        }
        .hamburger:focus {
            outline: 2px solid var(--accent);
        }
        .breadcrumb {
            background: #edeae2;
            padding: 10px 0;
            font-size: 13px;
            color: var(--text-light);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 4px 10px;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 10px;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 600;
        }
        .search-bar {
            display: flex;
            gap: 6px;
            max-width: 400px;
            margin: 0 auto 32px;
        }
        .search-bar input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 15px;
            background: #fff;
            transition: border 0.25s;
        }
        .search-bar input:focus {
            border-color: var(--primary-light);
            outline: none;
        }
        .search-bar button {
            background: var(--primary-light);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0 22px;
            font-size: 16px;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-bar button:hover {
            background: var(--primary);
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 36px;
            padding: 36px 0;
        }
        @media (max-width: 860px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .content h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .content .meta {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }
        .content .meta i {
            margin-right: 6px;
            color: var(--primary-light);
        }
        .content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-top: 40px;
            margin-bottom: 14px;
            padding-bottom: 6px;
            border-bottom: 3px solid var(--accent);
        }
        .content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 28px;
            margin-bottom: 10px;
        }
        .content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-top: 20px;
            margin-bottom: 8px;
        }
        .content p {
            margin-bottom: 16px;
            font-size: 16px;
            color: var(--text);
        }
        .content ul,
        .content ol {
            margin: 12px 0 20px 24px;
        }
        .content li {
            margin-bottom: 8px;
        }
        .content .highlight {
            background: #fcf3da;
            padding: 18px 22px;
            border-left: 5px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .content .highlight strong {
            color: var(--primary);
        }
        .content .feature-img {
            margin: 28px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .content .feature-img figcaption {
            font-size: 13px;
            color: var(--text-light);
            text-align: center;
            margin-top: 8px;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar .card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
        }
        .sidebar .card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
        }
        .sidebar .card ul {
            list-style: none;
            margin: 0;
        }
        .sidebar .card ul li {
            padding: 4px 0;
            border-bottom: 1px solid #f0ede8;
        }
        .sidebar .card ul li a {
            font-size: 14px;
        }
        .feedback-section {
            background: var(--card);
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow);
            margin: 32px 0;
        }
        .feedback-section h2 {
            margin-top: 0 !important;
            border-bottom: none !important;
            font-size: 22px !important;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 16px;
        }
        @media (max-width: 600px) {
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .feedback-item label {
            font-weight: 600;
            display: block;
            margin-bottom: 6px;
            font-size: 14px;
        }
        .feedback-item textarea,
        .feedback-item input {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 15px;
            transition: border 0.25s;
        }
        .feedback-item textarea:focus,
        .feedback-item input:focus {
            border-color: var(--primary-light);
            outline: none;
        }
        .feedback-item textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 2px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 28px;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: var(--accent);
        }
        .btn-feedback {
            background: var(--primary-light);
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            margin-top: 10px;
        }
        .btn-feedback:hover {
            background: var(--primary);
            transform: scale(1.02);
        }
        footer {
            background: var(--primary);
            color: #e0ddd6;
            padding: 32px 0 20px;
            margin-top: 40px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }
        @media (max-width: 640px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        footer h4 {
            color: var(--accent);
            font-size: 16px;
            margin-bottom: 10px;
        }
        footer a {
            color: #d4d0c8;
        }
        footer a:hover {
            color: var(--accent);
        }
        footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            text-align: center;
            font-size: 13px;
            color: #b0aca4;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 14px 18px;
            border-radius: 8px;
            margin-top: 8px;
            font-size: 14px;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
        }
        @media (max-width: 720px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary);
                padding: 12px 0 16px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 10px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 10px 18px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-wrapper {
                width: 100%;
                flex-wrap: wrap;
            }
            .content h1 {
                font-size: 28px;
            }
            .content h2 {
                font-size: 22px;
            }
            .content h3 {
                font-size: 18px;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            background: var(--primary-light);
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
            border: none;
            z-index: 50;
        }
        .scroll-top:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        .content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 28px;
            font-size: 15px;
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .content table th {
            background: var(--primary);
            color: #fff;
            padding: 10px 14px;
            text-align: left;
            font-weight: 600;
        }
        .content table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
        }
        .content table tr:last-child td {
            border-bottom: none;
        }
        @media (max-width: 540px) {
            .content table {
                font-size: 13px;
            }
            .content table th,
            .content table td {
                padding: 6px 8px;
            }
        }