*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --secondary: #e85d3a;
            --accent: #f4a261;
            --bg: #f8f9fc;
            --card-bg: #ffffff;
            --text: #1e2a3a;
            --text-light: #4a5a6a;
            --border: #dce0e8;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --gap: 2rem;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0 1rem;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
        }
        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);
        }
        .screen-reader-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        header {
            background: var(--card-bg);
            border-bottom: 2px solid var(--border);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 1.4rem;
        }
        .my-logo span {
            font-weight: 300;
            color: var(--text-light);
            font-size: 0.7em;
        }
        .my-logo:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            font-size: 1.4rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            color: var(--primary);
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: var(--bg);
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        nav a {
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-light);
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover,
        nav a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .nav-right .search-icon {
            background: none;
            border: none;
            font-size: 1.2rem;
            color: var(--text-light);
            cursor: pointer;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-right .search-icon:hover {
            background: var(--bg);
            color: var(--primary);
        }
        .breadcrumb {
            padding: 0.75rem 0 0.25rem;
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.6rem;
            color: var(--text-light);
        }
        main {
            padding: 2rem 0 4rem;
        }
        article {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow);
            margin-bottom: var(--gap);
        }
        h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid var(--accent);
            line-height: 1.3;
        }
        h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-light);
            margin: 1.8rem 0 0.8rem;
            line-height: 1.4;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.2rem 0 0.5rem;
            line-height: 1.4;
        }
        p {
            margin-bottom: 1.2rem;
            color: var(--text);
        }
        .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--border);
        }
        .meta i {
            margin-right: 0.3rem;
            color: var(--accent);
        }
        .featured-img {
            margin: 1.5rem 0 2rem;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg);
        }
        .featured-img img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
        }
        .featured-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--bg);
            border-top: 1px solid var(--border);
        }
        .highlight-box {
            background: #f0f4fa;
            border-left: 4px solid var(--secondary);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 1.2rem 1rem;
            text-align: center;
            border: 1px solid var(--border);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.3rem;
        }
        blockquote {
            font-style: italic;
            border-left: 4px solid var(--accent);
            padding: 0.8rem 1.5rem;
            margin: 1.5rem 0;
            background: #fef9f0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-light);
        }
        blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
        }
        ul,
        ol {
            margin: 0.8rem 0 1.2rem 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .content-link {
            color: var(--secondary);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .content-link:hover {
            color: var(--primary);
        }
        .section-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 1.8rem 1.5rem;
            box-shadow: var(--shadow);
            margin-bottom: var(--gap);
        }
        .section-card h2 {
            margin-top: 0;
            border-bottom: none;
            padding-bottom: 0;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            outline: none;
            border-color: var(--primary-light);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: var(--primary-light);
        }
        .comment-rating-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
        }
        @media (max-width: 700px) {
            .comment-rating-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            min-height: 100px;
            resize: vertical;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            outline: none;
            border-color: var(--primary-light);
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            margin-bottom: 0.6rem;
            transition: border 0.2s;
        }
        .comment-form input[type="text"]:focus {
            outline: none;
            border-color: var(--primary-light);
        }
        .comment-form button {
            background: var(--secondary);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .comment-form button:hover {
            background: #c94d2e;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: var(--border);
            cursor: pointer;
            margin: 0.5rem 0;
            direction: rtl;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: var(--accent);
            transform: scale(1.1);
        }
        .rating-stars.active i.active-star {
            color: var(--accent);
        }
        .score-display {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin: 0.3rem 0 0.6rem;
        }
        .score-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .score-form button:hover {
            background: var(--primary-light);
        }
        friend-link {
            display: block;
            padding: 1.5rem 0 0.5rem;
        }
        friend-link h2 {
            margin-top: 0;
            border-bottom: none;
            font-size: 1.3rem;
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            list-style: none;
            margin: 1rem 0 0;
            padding: 0;
        }
        .friend-links-list li {
            margin: 0;
        }
        .friend-links-list a {
            background: var(--bg);
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            border: 1px solid var(--border);
            transition: all 0.2s;
            display: inline-block;
        }
        .friend-links-list a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        footer {
            border-top: 2px solid var(--border);
            padding: 2rem 0 1.5rem;
            text-align: center;
            color: var(--text-light);
            font-size: 0.85rem;
        }
        footer .copyright {
            margin-top: 0.8rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.3rem 1rem;
        }
        footer .copyright i {
            color: var(--secondary);
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding-top: 0.6rem;
                border-top: 1px solid var(--border);
                margin-top: 0.4rem;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 0.6rem 0.8rem;
                width: 100%;
                border-radius: 6px;
            }
            .nav-right {
                margin-left: auto;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            article {
                padding: 1.2rem 1rem;
            }
            .section-card {
                padding: 1.2rem 1rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.35rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .search-form input[type="text"],
            .search-form button {
                width: 100%;
            }
        }