* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1e3c4f;
            --primary-light: #2a5a72;
            --secondary: #d4a745;
            --accent: #c0392b;
            --bg: #faf7f2;
            --bg-card: #ffffff;
            --text: #2c2c2c;
            --text-light: #5a5a5a;
            --border: #e0d6c8;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-bg: #1a2f3e;
        }
        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(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--header-bg);
            color: #fff;
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo span {
            color: var(--secondary);
            font-weight: 300;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .my-logo:hover {
            color: var(--secondary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
        }
        .primary-nav {
            display: flex;
            gap: 18px;
            align-items: center;
            flex-wrap: wrap;
        }
        .primary-nav a {
            color: #f0f0f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .primary-nav a:hover {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
        }
        .breadcrumb {
            background: #f0ebe4;
            padding: 10px 0;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            color: var(--text-light);
        }
        .breadcrumb-wrap a {
            color: var(--primary-light);
        }
        .breadcrumb-wrap a:hover {
            color: var(--secondary);
        }
        .breadcrumb-wrap span {
            color: #888;
        }
        main {
            padding: 40px 0 60px;
        }
        .article-content {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-top: 48px;
            margin-bottom: 16px;
            border-left: 5px solid var(--secondary);
            padding-left: 16px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1e3c4f;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .lead {
            font-size: 1.2rem;
            color: var(--text-light);
            border-left: 4px solid var(--secondary);
            padding-left: 20px;
            margin-bottom: 28px;
            font-weight: 400;
        }
        .metadata {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }
        .metadata i {
            margin-right: 6px;
            color: var(--secondary);
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            background: var(--bg-card);
            padding: 12px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
        }
        .section-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin: 28px 0;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .link-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
        }
        .link-list li a {
            background: #f0ebe4;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            transition: 0.2s;
            display: inline-block;
            border: 1px solid transparent;
        }
        .link-list li a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--primary);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 1rem;
            background: #fff;
            transition: 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(42, 90, 114, 0.12);
        }
        .btn {
            padding: 12px 32px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 60, 79, 0.25);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #1e2a30;
        }
        .btn-secondary:hover {
            background: #c49a35;
            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 {
            transition: color 0.2s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .comment-item {
            background: #f8f4ef;
            padding: 16px 20px;
            border-radius: 10px;
            margin-bottom: 14px;
            border-left: 4px solid var(--secondary);
        }
        .comment-item .author {
            font-weight: 600;
            color: var(--primary);
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .site-footer {
            background: var(--header-bg);
            color: #ddd;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
        }
        .site-footer h4 {
            color: var(--secondary);
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #bbb;
        }
        .site-footer a:hover {
            color: var(--secondary);
        }
        .friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-top: 8px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .friend-link a {
            color: #bbb;
            font-size: 0.9rem;
        }
        .friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: #999;
            margin-top: 20px;
        }
        @media (max-width: 900px) {
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .section-card {
                padding: 20px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 10px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 12px;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 6px 0;
                font-size: 1rem;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
            }
            .lead {
                font-size: 1rem;
                padding-left: 14px;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container,
            .article-content,
            .header-inner,
            .breadcrumb-wrap,
            .footer-inner {
                padding-left: 14px;
                padding-right: 14px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
                padding-left: 12px;
            }
            .section-card {
                padding: 16px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            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(0, 0, 0, 0.2);
            cursor: pointer;
            border: none;
            transition: 0.25s;
            opacity: 0;
            pointer-events: none;
            z-index: 999;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
        }