* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3c6e;
            --primary-light: #2a5a9e;
            --accent: #f5a623;
            --accent-hover: #e09515;
            --bg: #f8f9fa;
            --card-bg: #ffffff;
            --text: #1e2a3a;
            --text-light: #4a5a6a;
            --border: #dce1e8;
            --success: #2ecc71;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
        }
        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: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .my-logo span {
            color: var(--accent);
        }
        .my-logo i {
            font-size: 1.4rem;
            color: var(--accent);
        }
        .my-logo:hover {
            color: #fff;
            opacity: 0.95;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.9);
            padding: 8px 14px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
        }
        .breadcrumb {
            background: transparent;
            padding: 10px 0 6px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            margin: 0 4px;
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .hero {
            background: linear-gradient(145deg, var(--primary), #0f2642);
            color: #fff;
            padding: 48px 32px;
            border-radius: var(--radius);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "📱";
            position: absolute;
            right: 20px;
            bottom: 20px;
            font-size: 5rem;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
            max-width: 80%;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 70%;
            line-height: 1.6;
        }
        .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            font-size: 0.9rem;
            opacity: 0.8;
            flex-wrap: wrap;
        }
        .hero-meta i {
            margin-right: 6px;
        }
        .content-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 36px;
            margin-bottom: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .content-section h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .content-section h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .content-section h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 20px;
            margin-bottom: 8px;
        }
        .content-section p {
            margin-bottom: 16px;
            color: var(--text-light);
        }
        .content-section ul,
        .content-section ol {
            margin: 12px 0 20px 24px;
            color: var(--text-light);
        }
        .content-section li {
            margin-bottom: 8px;
        }
        .content-section strong {
            color: var(--text);
            font-weight: 600;
        }
        .highlight-box {
            background: #f0f5ff;
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .stat-card {
            background: var(--bg);
            border-radius: 10px;
            padding: 18px;
            text-align: center;
            border: 1px solid var(--border);
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .featured-image {
            margin: 24px 0;
            border-radius: var(--radius);
            overflow: hidden;
            background: #eef2f7;
            text-align: center;
        }
        .featured-image img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            font-style: italic;
            background: #f4f6f9;
        }
        .word-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.92rem;
        }
        .word-table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .word-table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }
        .word-table tr:nth-child(even) {
            background: #f8fafc;
        }
        .word-table tr:hover {
            background: #eef3fa;
        }
        .word-table th:first-child {
            border-radius: 8px 0 0 0;
        }
        .word-table th:last-child {
            border-radius: 0 8px 0 0;
        }
        .search-block {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin-bottom: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .search-block h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }
        .search-form button i {
            margin-right: 8px;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-bottom: 28px;
        }
        .comment-block,
        .rating-block {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .comment-block h3,
        .rating-block h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            border-color: var(--primary-light);
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            margin-top: 10px;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form input[type="text"]:focus {
            border-color: var(--primary-light);
        }
        .comment-form button {
            margin-top: 12px;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form button:hover {
            background: var(--primary-light);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 12px 0;
            direction: rtl;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.1s;
        }
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: var(--accent);
            transform: scale(1.05);
        }
        .rating-stars i.active {
            color: var(--accent);
        }
        .rating-block .avg {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 8px;
        }
        .rating-block .avg span {
            color: var(--accent);
        }
        .rating-form button {
            margin-top: 12px;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form button:hover {
            background: var(--primary-light);
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 28px;
            margin-top: 20px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        .footer-inner p,
        .footer-inner a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
        }
        .footer-inner a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            margin-top: 4px;
        }
        friend-link a {
            display: inline-block;
            padding: 4px 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            margin-top: 28px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom .copyright {
            margin-bottom: 6px;
        }
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 1.8rem;
                max-width: 100%;
            }
            .hero p {
                max-width: 100%;
                font-size: 1rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .content-section {
                padding: 24px 20px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                border-top: 1px solid rgba(255, 255, 255, 0.15);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                text-align: center;
            }
            .hero {
                padding: 32px 20px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero::after {
                display: none;
            }
            .content-section {
                padding: 20px 16px;
            }
            .content-section h2 {
                font-size: 1.35rem;
            }
            .word-table {
                font-size: 0.8rem;
            }
            .word-table th,
            .word-table td {
                padding: 8px 10px;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .hero h1 {
                font-size: 1.25rem;
            }
            .hero-meta {
                flex-direction: column;
                gap: 8px;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        .main-nav {
            transition: all 0.3s ease;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e8edf4;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .last-updated i {
            color: var(--primary-light);
        }
        .text-accent {
            color: var(--accent);
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }