* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c3e50;
            --accent: #e67e22;
            --accent-hover: #d35400;
            --gold: #f39c12;
            --bg-light: #f8f5f0;
            --bg-card: #ffffff;
            --text-dark: #1e2a36;
            --text-muted: #5a6a7a;
            --border-light: #e8e3dc;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
            --radius: 12px;
            --transition: 0.25s ease;
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }
        .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;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: opacity var(--transition);
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: #fff;
        }
        .my-logo i {
            color: var(--gold);
            font-size: 1.6rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--gold);
            border-bottom-color: var(--gold);
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            font-size: 0.88rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 8px;
            color: var(--text-muted);
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 600;
        }
        .hero-section {
            padding: 40px 0 20px;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .hero-section h1 i {
            color: var(--gold);
            margin-right: 8px;
        }
        .hero-meta {
            color: var(--text-muted);
            font-size: 0.95rem;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
        }
        .hero-meta span i {
            margin-right: 6px;
        }
        .hero-img-wrap {
            margin: 24px auto 0;
            max-width: 820px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0 60px;
        }
        .main-article {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
        }
        .main-article h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .main-article h2:first-of-type {
            margin-top: 0;
        }
        .main-article h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-light);
            margin: 28px 0 12px;
        }
        .main-article h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 20px 0 8px;
        }
        .main-article p {
            margin-bottom: 16px;
            font-size: 1.02rem;
        }
        .main-article ul,
        .main-article ol {
            margin: 12px 0 20px 24px;
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .main-article .highlight-box {
            background: #fef9ef;
            border-left: 4px solid var(--gold);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .main-article .stat-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .main-article .emoji-lg {
            font-size: 1.4rem;
            margin-right: 4px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border-light);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border var(--transition);
        }
        .search-form input:focus {
            border-color: var(--accent);
        }
        .search-form button {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 10px 18px;
            border-radius: 8px;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-form button:hover {
            background: var(--accent-hover);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }
        .feedback-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .feedback-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .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-light);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            font-family: inherit;
            transition: border var(--transition);
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--accent);
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
        }
        .feedback-card .btn-submit:hover {
            background: var(--primary-light);
        }
        .rating-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            transition: color var(--transition);
        }
        .rating-stars input:checked~label,
        .rating-stars label:hover,
        .rating-stars label:hover~label {
            color: var(--gold);
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-inner a {
            color: rgba(255, 255, 255, 0.75);
        }
        .footer-inner a:hover {
            color: var(--gold);
        }
        .footer-inner ul {
            list-style: none;
        }
        .footer-inner ul li {
            padding: 4px 0;
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline-block;
            padding: 4px 12px;
            margin: 4px 4px 4px 0;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            font-size: 0.9rem;
            transition: background var(--transition);
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.16);
            text-decoration: none;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 28px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .last-updated {
            text-align: right;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 28px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 8px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .main-article {
                padding: 24px 18px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-meta {
                flex-direction: column;
                gap: 6px;
                align-items: center;
            }
        }
        @media (max-width: 480px) {
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 12px;
            }
        }
        :target {
            scroll-margin-top: 90px;
        }