* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --bg: #faf8f5;
            --text: #1e2a3a;
            --accent: #e87a20;
            --accent2: #2b9b7a;
            --light: #f0ebe3;
            --border: #d6cec1;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-w: 1120px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1.05rem;
            padding: 0 20px;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c46518;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 16px;
        }
        header {
            padding: 20px 0 10px;
            border-bottom: 2px solid var(--border);
            background: #fff;
            border-radius: 0 0 var(--radius) var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 28px;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 16px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s;
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--accent2);
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: var(--accent);
        }
        .my-logo span {
            font-weight: 300;
            color: var(--text);
            font-size: 1rem;
            margin-left: 4px;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: var(--light);
        }
        nav {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }
        nav a {
            padding: 6px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--light);
            transition: all 0.2s;
            white-space: nowrap;
        }
        nav a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            max-width: var(--max-w);
            margin: 8px auto 0;
            padding: 6px 16px 0;
            font-size: 0.85rem;
            color: #6b7a8a;
        }
        .breadcrumb a {
            color: var(--accent2);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            margin: 0 4px;
        }
        .hero {
            background: linear-gradient(135deg, #f7ede0, #e6d9cc);
            border-radius: var(--radius);
            padding: 40px 32px;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #1a2a3a;
            margin-bottom: 16px;
        }
        .hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 780px;
            color: #2a3a4a;
        }
        .hero .meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 18px;
            font-size: 0.9rem;
            color: #4a5a6a;
        }
        .hero .meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        main.container {
            padding-bottom: 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .article-body h2 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .article-body h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #1e2a3a;
        }
        .article-body h3 i {
            color: var(--accent2);
            margin-right: 8px;
            font-size: 1.3rem;
        }
        .article-body h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #2a3a4a;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #1e2a3a;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 28px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .highlight-box {
            background: var(--light);
            border-left: 5px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .article-body .highlight-box strong {
            color: var(--accent);
        }
        .article-body .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .article-body .stat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .article-body .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }
        .article-body .stat-card .label {
            font-size: 0.9rem;
            color: #5a6a7a;
            margin-top: 4px;
        }
        .article-body figure {
            margin: 32px 0;
            background: #fff;
            border-radius: var(--radius);
            padding: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .article-body figure img {
            border-radius: calc(var(--radius) - 4px);
        }
        .article-body figure figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: #5a6a7a;
            padding: 10px 4px 4px;
            font-style: italic;
        }
        .article-body .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 16px 0 24px;
        }
        .article-body .link-list-inline a {
            background: #fff;
            border: 1px solid var(--border);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s;
        }
        .article-body .link-list-inline a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            text-decoration: none;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--accent);
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid #f0ebe3;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .sidebar-card ul li a i {
            font-size: 0.75rem;
            color: var(--accent2);
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 48px 0 32px;
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .interaction-section .full-width {
            grid-column: 1 / -1;
        }
        .interaction-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-section h3 i {
            color: var(--accent);
        }
        .interaction-section form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interaction-section input,
        .interaction-section textarea,
        .interaction-section select {
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 1rem;
            font-family: var(--font);
            background: var(--bg);
            transition: border 0.2s;
            width: 100%;
        }
        .interaction-section input:focus,
        .interaction-section textarea:focus,
        .interaction-section select:focus {
            outline: none;
            border-color: var(--accent);
        }
        .interaction-section textarea {
            min-height: 90px;
            resize: vertical;
        }
        .interaction-section .btn {
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .interaction-section .btn:hover {
            background: #c46518;
            transform: translateY(-1px);
        }
        .interaction-section .btn i {
            font-size: 0.9rem;
        }
        .score-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d6cec1;
            cursor: pointer;
            direction: rtl;
        }
        .score-stars i.active,
        .score-stars i:hover,
        .score-stars i:hover~i {
            color: #f5b342;
        }
        footer {
            background: #1e2a3a;
            color: #e6ddd0;
            border-radius: var(--radius) var(--radius) 0 0;
            padding: 40px 20px 20px;
            margin-top: 40px;
        }
        footer .footer-inner {
            max-width: var(--max-w);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        footer h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        footer a {
            color: #b8aa9a;
        }
        footer a:hover {
            color: var(--accent);
        }
        footer .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #2a3a4a;
            padding-top: 20px;
            margin-top: 20px;
            font-size: 0.9rem;
            text-align: center;
            color: #8a7a6a;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0 8px 4px 0;
            padding: 2px 12px;
            background: #2a3a4a;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .sidebar-card {
                margin-bottom: 0;
            }
            .interaction-section {
                grid-template-columns: 1fr;
            }
            footer .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 700px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 16px 0 8px;
                gap: 8px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                width: 100%;
                text-align: center;
                padding: 10px 16px;
            }
            .header-inner {
                align-items: center;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            footer .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero {
                padding: 28px 18px;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.25rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
                font-size: 0.98rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo span {
                font-size: 0.8rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero .meta {
                flex-direction: column;
                gap: 6px;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .interaction-section {
                padding: 20px 16px;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #b8aa9a;
        }