*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a2a6c;
            --secondary: #b21f1f;
            --accent: #fdbb2d;
            --bg: #f8f9fc;
            --text: #1e1e2f;
            --text-light: #555568;
            --white: #ffffff;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1120px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        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 20px;
        }
        .site-header {
            background: var(--white);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0;
            backdrop-filter: blur(8px);
            background: rgba(255, 255, 255, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--accent);
            font-size: 1.6rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list a {
            padding: 6px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a:hover,
        .nav-list a.active {
            background: var(--primary);
            color: var(--white);
            text-decoration: none;
        }
        .nav-list a i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(26, 42, 108, 0.08);
        }
        .nav-mobile {
            display: none;
            width: 100%;
            background: var(--white);
            border-radius: var(--radius);
            padding: 16px 0 8px;
            box-shadow: var(--shadow);
        }
        .nav-mobile.open {
            display: block;
        }
        .nav-mobile .nav-list {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }
        .nav-mobile .nav-list a {
            padding: 12px 20px;
            border-radius: 8px;
        }
        .breadcrumb {
            background: var(--white);
            padding: 10px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #bbb;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--secondary);
            font-weight: 600;
        }
        .hero {
            padding: 40px 0 24px;
            text-align: center;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 6vw, 3.8rem);
            font-weight: 900;
            line-height: 1.15;
            background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 720px;
            margin: 0 auto 20px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px 32px;
            font-size: 0.92rem;
            color: var(--text-light);
        }
        .hero-meta i {
            margin-right: 6px;
            color: var(--secondary);
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .search-section {
            background: var(--white);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            margin: 24px 0 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
        }
        .search-section form {
            display: flex;
            flex: 1 1 320px;
            gap: 8px;
        }
        .search-section input[type="text"] {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid #e8ecf4;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
            background: var(--bg);
        }
        .search-section input[type="text"]:focus {
            border-color: var(--primary);
            background: var(--white);
        }
        .search-section button {
            padding: 12px 28px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section button:hover {
            background: var(--secondary);
            transform: scale(1.02);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 36px;
            margin: 20px 0 48px;
        }
        .main-article {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 36px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f2f8;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card a i {
            color: var(--accent);
            width: 18px;
            font-size: 0.8rem;
        }
        .main-article h2 {
            font-size: 1.9rem;
            color: var(--primary);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 4px solid var(--accent);
            display: inline-block;
        }
        .main-article h3 {
            font-size: 1.4rem;
            color: var(--secondary);
            margin: 32px 0 12px;
        }
        .main-article h4 {
            font-size: 1.15rem;
            color: var(--text);
            margin: 24px 0 8px;
            font-weight: 700;
        }
        .main-article p {
            margin-bottom: 16px;
            color: var(--text);
            font-size: 1.02rem;
        }
        .main-article strong {
            color: var(--primary);
        }
        .main-article .highlight-box {
            background: linear-gradient(135deg, #f0f4ff, #fff8e7);
            padding: 20px 24px;
            border-radius: var(--radius);
            border-left: 6px solid var(--accent);
            margin: 24px 0;
        }
        .main-article ul,
        .main-article ol {
            margin: 12px 0 20px 24px;
            color: var(--text);
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .main-article .emoji-big {
            font-size: 1.8rem;
            margin-right: 8px;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: #eef1f8;
            text-align: center;
            padding: 20px;
        }
        .featured-image img {
            width: 100%;
            max-width: 700px;
            margin: 0 auto;
            border-radius: 12px;
        }
        .featured-image figcaption {
            margin-top: 12px;
            font-size: 0.88rem;
            color: var(--text-light);
            font-style: italic;
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 36px 0 20px;
        }
        .interact-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid #edf0f8;
        }
        .interact-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            padding: 10px 16px;
            border: 2px solid #e8ecf4;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: var(--transition);
            background: var(--bg);
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            border-color: var(--primary);
            background: var(--white);
        }
        .interact-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interact-card button {
            padding: 12px 20px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .interact-card button:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 4px 0 8px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.9);
            padding: 40px 0 24px;
            margin-top: 48px;
            border-radius: 24px 24px 0 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }
        .footer-inner h4 {
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-inner p,
        .footer-inner a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.92rem;
        }
        .footer-inner a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            padding: 4px 0;
        }
        friend-link {
            display: block;
            margin: 16px 0 8px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        friend-link a {
            color: var(--accent);
            font-weight: 500;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .copyright strong {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner .nav-list {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .main-article {
                padding: 20px 16px;
            }
            .interact-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .search-section {
                padding: 20px 16px;
                flex-direction: column;
            }
            .search-section form {
                width: 100%;
                flex-wrap: wrap;
            }
            .search-section input[type="text"] {
                flex: 1 1 100%;
            }
            .search-section button {
                width: 100%;
                justify-content: center;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .interact-card {
                padding: 18px 16px;
            }
            .featured-image {
                padding: 12px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .main-article h2 {
                font-size: 1.5rem;
            }
            .main-article h3 {
                font-size: 1.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-meta {
                font-size: 0.8rem;
                gap: 12px;
            }
            .sidebar-card {
                padding: 16px;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary);
        }
        @media print {
            .site-header,
            .breadcrumb,
            .search-section,
            .interact-grid,
            .sidebar,
            .hamburger {
                display: none !important;
            }
            .content-grid {
                display: block;
            }
            .main-article {
                box-shadow: none;
                padding: 0;
            }
            .site-footer {
                break-inside: avoid;
                background: #f4f4f4;
                color: #333;
            }
        }