*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #962d22;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0b1a2a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
            border-bottom: 3px solid #c0392b;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 4px solid #c0392b;
            padding-left: 0.8rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c3e50;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2a, #1a2f42);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #f5c518;
            letter-spacing: -0.5px;
            text-transform: uppercase;
            background: rgba(255, 255, 255, 0.05);
            padding: 0.2rem 1rem 0.2rem 0.5rem;
            border-radius: 4px;
            transition: background 0.3s;
            display: inline-block;
            text-decoration: none;
        }
        .my-logo:hover {
            background: rgba(245, 197, 24, 0.15);
            text-decoration: none;
            color: #f5c518;
        }
        .my-logo span {
            font-weight: 300;
            color: #aac;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 1.2rem;
        }
        .main-nav a {
            color: #e8edf3;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: #f5c518;
            color: #f5c518;
            text-decoration: none;
        }
        .main-nav .active {
            border-bottom-color: #f5c518;
            color: #f5c518;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d8e0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2c5f8a;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .hero-img-wrap {
            margin: 1.8rem 0 2.4rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
            background: #0b1a2a;
        }
        .hero-img-wrap img {
            width: 100%;
            aspect-ratio: 1200/500;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .hero-img-wrap:hover img {
            transform: scale(1.02);
        }
        .search-section {
            background: #fff;
            border-radius: 14px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        .search-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1 1 260px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce3ec;
            border-radius: 50px;
            font-size: 1rem;
            transition: border-color 0.3s;
            outline: none;
            background: #f9fbfd;
        }
        .search-form input[type="text"]:focus {
            border-color: #c0392b;
        }
        .search-form button {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #962d22;
            transform: translateY(-2px);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.4rem 0;
        }
        @media (max-width: 700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 14px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
            transition: box-shadow 0.3s;
        }
        .card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.10);
        }
        .card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: border-color 0.3s;
            background: #f9fbfd;
        }
        .comment-form textarea:focus {
            border-color: #c0392b;
            outline: none;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            margin-top: 0.6rem;
            background: #f9fbfd;
        }
        .comment-form input[type="text"]:focus {
            border-color: #c0392b;
            outline: none;
        }
        .comment-form .btn-submit {
            background: #1e3a5f;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            margin-top: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form .btn-submit:hover {
            background: #0f2a44;
            transform: translateY(-2px);
        }
        .score-stars {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            margin-top: 0.6rem;
        }
        .score-stars .stars {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #e2c820;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .score-stars .stars i {
            transition: color 0.2s, transform 0.2s;
        }
        .score-stars .stars i:hover {
            transform: scale(1.2);
            color: #f5b342;
        }
        .score-stars .btn-score {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            align-self: flex-start;
        }
        .score-stars .btn-score:hover {
            background: #962d22;
        }
        .content-article {
            background: #fff;
            border-radius: 16px;
            padding: 2.4rem 2.8rem;
            margin: 1.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #eef2f7;
        }
        @media (max-width: 600px) {
            .content-article {
                padding: 1.5rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-inner {
                flex-direction: row;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.4rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0;
                font-size: 1rem;
                width: 100%;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
            .hero-img-wrap img {
                aspect-ratio: 4/3;
            }
        }
        @media (min-width: 601px) {
            .nav-toggle {
                display: none !important;
            }
            .main-nav {
                display: flex !important;
            }
        }
        blockquote {
            border-left: 4px solid #c0392b;
            background: #f8f6f0;
            padding: 1.2rem 1.8rem;
            margin: 1.6rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2c3e50;
        }
        blockquote strong {
            color: #1a2f42;
        }
        .highlight-box {
            background: #f0f5fb;
            border-radius: 14px;
            padding: 1.6rem 2rem;
            margin: 1.6rem 0;
            border-left: 5px solid #1e3a5f;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #1e3a5f;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .data-table tr:nth-child(even) {
            background: #f8fafc;
        }
        .data-table tr:hover {
            background: #edf2f7;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            margin: 0.8rem 0;
        }
        .tag-list a {
            background: #eef2f7;
            padding: 0.2rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #1e3a5f;
            border: 1px solid #d0d8e0;
            transition: background 0.2s;
        }
        .tag-list a:hover {
            background: #dce3ec;
            text-decoration: none;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #5f6f80;
            margin-top: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #0b1a2a;
            color: #c8d4e0;
            padding: 2.4rem 0 1.6rem;
            margin-top: 3rem;
            border-top: 4px solid #c0392b;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 700px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .footer-inner h4 {
            color: #f5c518;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #a0b8d0;
        }
        .footer-inner a:hover {
            color: #f5c518;
        }
        .friend-link {
            display: block;
            padding: 0.6rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 1.2rem;
        }
        .friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            padding: 0.3rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 1.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: #8899aa;
        }
        .emoji-big {
            font-size: 1.4em;
            display: inline-block;
            margin-right: 0.2rem;
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #1e3a5f;
            color: #fff;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
            transition: background 0.3s, transform 0.3s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            background: #c0392b;
            transform: translateY(-4px);
        }
        @media (max-width: 480px) {
            .btn-top {
                bottom: 16px;
                right: 16px;
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .search-form input[type="text"],
            .search-form button {
                width: 100%;
                border-radius: 30px;
            }
        }
        .stat-badge {
            display: inline-block;
            background: #1e3a5f;
            color: #f5c518;
            padding: 0.2rem 1rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .section-divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #c0392b, transparent);
            margin: 2.4rem 0;
            opacity: 0.3;
        }