*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3c34;
            --primary-light: #2a5c4a;
            --secondary: #d4a843;
            --accent: #e8d5a3;
            --bg: #f9f6ef;
            --bg-card: #ffffff;
            --text: #1e1e1e;
            --text-light: #4a4a4a;
            --border: #d6cdb8;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 14px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0 20px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 16px;
        }
        .site-header {
            padding: 18px 0 10px;
            border-bottom: 2px solid var(--border);
            background: var(--bg-card);
            border-radius: 0 0 var(--radius) var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: 0.2s;
        }
        .my-logo:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 2rem;
        }
        .my-logo span {
            font-weight: 300;
            color: var(--text-light);
            font-size: 1rem;
            letter-spacing: 0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .main-nav {
            display: flex;
            gap: 6px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 30px;
            font-size: 0.92rem;
            transition: 0.2s;
            color: var(--text);
        }
        .main-nav a:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: var(--accent);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            padding: 12px 0 6px;
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        main {
            padding: 20px 0 40px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 40px;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        article {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
        }
        article h1 {
            font-size: 2.6rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 8px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        article h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin: 40px 0 16px;
            border-left: 5px solid var(--secondary);
            padding-left: 18px;
            font-weight: 700;
        }
        article h3 {
            font-size: 1.35rem;
            color: var(--primary-light);
            margin: 30px 0 12px;
            font-weight: 600;
        }
        article h4 {
            font-size: 1.1rem;
            color: var(--text);
            margin: 22px 0 8px;
            font-weight: 600;
            font-style: italic;
        }
        article p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: var(--text);
        }
        article ul,
        article ol {
            margin: 0 0 20px 24px;
        }
        article li {
            margin-bottom: 8px;
        }
        .last-updated {
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--accent);
            display: inline-block;
            padding: 4px 16px;
            border-radius: 30px;
            margin-bottom: 20px;
        }
        .featured-img {
            margin: 24px 0 30px;
            border-radius: var(--radius);
            overflow: hidden;
            background: #e8e0d0;
            box-shadow: var(--shadow);
        }
        .featured-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-img figcaption {
            padding: 10px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            background: #f1ebe0;
            font-style: italic;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight-box {
            background: #f4efe4;
            border-left: 5px solid var(--secondary);
            padding: 16px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 22px 20px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 14px;
            font-weight: 700;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 8px;
            border-radius: 8px;
            transition: 0.2s;
        }
        .sidebar-card a:hover {
            background: var(--accent);
            text-decoration: none;
        }
        .sidebar-card a i {
            color: var(--secondary);
            width: 20px;
            text-align: center;
        }
        .search-form {
            display: flex;
            gap: 8px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            background: var(--bg);
        }
        .search-form input:focus {
            border-color: var(--secondary);
            background: #fff;
        }
        .search-form button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .feedback-section {
            margin-top: 46px;
            padding-top: 30px;
            border-top: 3px solid var(--accent);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        @media (max-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .feedback-card {
            background: #f4efe4;
            border-radius: var(--radius);
            padding: 22px 24px;
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            background: var(--bg-card);
            transition: 0.2s;
            font-family: var(--font);
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--secondary);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .star-select {
            display: flex;
            gap: 6px;
            align-items: center;
            font-size: 1.4rem;
            color: var(--secondary);
        }
        .feedback-card .star-select i {
            cursor: pointer;
            transition: 0.15s;
        }
        .feedback-card .star-select i:hover {
            transform: scale(1.2);
        }
        .feedback-card button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            font-weight: 600;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .site-footer {
            margin-top: 50px;
            padding: 30px 0 20px;
            border-top: 3px solid var(--border);
            background: var(--bg-card);
            border-radius: var(--radius) var(--radius) 0 0;
            box-shadow: var(--shadow);
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }
        @media (max-width: 700px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-inner h4 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 12px;
            font-weight: 700;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 18px;
        }
        .footer-links a {
            font-size: 0.95rem;
        }
        friend-link {
            display: block;
            background: var(--accent);
            padding: 14px 20px;
            border-radius: var(--radius);
            margin: 16px 0 12px;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 0 12px 6px 0;
            font-weight: 500;
        }
        .copyright {
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 16px;
            text-align: center;
        }
        .copyright strong {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            body {
                padding: 0 10px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            .my-logo span {
                font-size: 0.8rem;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--bg-card);
                padding: 16px 12px;
                border-radius: var(--radius);
                box-shadow: var(--shadow);
                margin-top: 8px;
                gap: 4px;
            }
            #nav-toggle:checked+.hamburger+.main-nav {
                display: flex;
            }
            #nav-toggle:checked+.hamburger {
                background: var(--accent);
            }
            .main-nav a {
                padding: 10px 14px;
                border-radius: 10px;
                font-size: 1rem;
            }
            article {
                padding: 20px 16px;
            }
            article h1 {
                font-size: 1.8rem;
            }
            article h2 {
                font-size: 1.4rem;
            }
            article h3 {
                font-size: 1.15rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeUp 0.7s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .schema-hidden {
            display: none;
        }
        .emoji-lg {
            font-size: 1.3em;
            margin-right: 4px;
        }
        .tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .divider {
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            margin: 28px 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 10px 14px;
            border: 1px solid var(--border);
            text-align: left;
        }
        th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f6f2ea;
        }