*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #f3b229;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            color: #0b2a3e;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
        }
        h2 {
            font-size: 1.75rem;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            border-left: 6px solid #f3b229;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
            color: #1a4b6d;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
            color: #2a5f7a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b2a3e 0%, #1a4b6d 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f3b229;
            text-shadow: 2px 2px 0 #0b2a3e;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #ffd966;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.65rem;
            display: block;
            color: #b6d4e8;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.3rem;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            display: block;
            padding: 0.4rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #e8f0f8;
            background: rgba(255, 255, 255, 0.06);
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-list li a:hover {
            background: #f3b229;
            color: #0b2a3e;
            text-decoration: none;
        }
        .nav-list li a i {
            margin-right: 0.35rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.7rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb {
            background: #e9eef3;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d0dbe6;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #7a8f9e;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #4d5f6e;
            font-weight: 600;
        }
        .main-content {
            background: #fff;
            padding: 2rem 0 3rem;
        }
        .article-body {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .featured-image {
            margin: 1.8rem 0 2.2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image figcaption {
            background: #f0f4f9;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #3d5568;
            font-style: italic;
        }
        .search-section {
            background: #eef4fa;
            border-radius: 18px;
            padding: 1.8rem 2rem;
            margin: 2.2rem 0;
            text-align: center;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0.8rem auto 0;
            border-radius: 60px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.9rem 1.4rem;
            border: none;
            font-size: 1rem;
            outline: none;
            background: #fff;
            color: #1a2634;
        }
        .search-form button {
            background: #1a4b6d;
            color: #fff;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-form button:hover {
            background: #f3b229;
            color: #0b2a3e;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .comment-box,
        .rating-box {
            background: #f8fafc;
            border-radius: 18px;
            padding: 1.8rem 1.8rem 2.2rem;
            border: 1px solid #e2eaf1;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-box textarea {
            width: 100%;
            border: 1px solid #cfdde9;
            border-radius: 12px;
            padding: 0.9rem 1rem;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            background: #fff;
            transition: border 0.2s;
        }
        .comment-box textarea:focus {
            border-color: #1a4b6d;
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 75, 109, 0.12);
        }
        .comment-box .btn,
        .rating-box .btn {
            display: inline-block;
            background: #1a4b6d;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            margin-top: 0.6rem;
        }
        .comment-box .btn:hover,
        .rating-box .btn:hover {
            background: #f3b229;
            color: #0b2a3e;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.25rem;
            margin: 0.6rem 0 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #cbd5e0;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f3b229;
            transform: scale(1.08);
        }
        .site-footer {
            background: #0b2a3e;
            color: #d0dfec;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #f3b229;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
            border-left: none;
            padding-left: 0;
        }
        .site-footer a {
            color: #b6d4e8;
        }
        .site-footer a:hover {
            color: #f3b229;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 14px;
            padding: 1.2rem 1.5rem;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.4rem;
            font-size: 0.92rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 1.2rem;
            font-size: 0.85rem;
            text-align: center;
            color: #8aa2b5;
        }
        .copyright strong {
            color: #d0dfec;
        }
        @media (max-width: 820px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 680px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f3550;
                border-radius: 16px;
                padding: 0.8rem 0.4rem;
                margin-top: 0.4rem;
                gap: 0.2rem;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1.2rem;
                white-space: normal;
                border-radius: 10px;
            }
            .nav-wrap {
                flex-wrap: wrap;
                width: 100%;
            }
            .header-inner {
                gap: 0.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 20px;
            }
            .search-form input[type="text"] {
                border-radius: 20px 20px 0 0;
            }
            .search-form button {
                padding: 0.8rem;
                border-radius: 0 0 20px 20px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 420px) {
            .article-body {
                padding: 0.8rem 0.6rem;
            }
            .container {
                padding: 0 0.6rem;
            }
            h1 {
                font-size: 1.35rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 0.6rem;
            }
            .star-rating label {
                font-size: 1.7rem;
            }
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
        }
        .badge {
            display: inline-block;
            background: #f3b229;
            color: #0b2a3e;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #5f7a8e;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            margin-bottom: 0.8rem;
        }
        .last-updated i {
            color: #f3b229;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fafcfe;
            border-radius: 12px;
            overflow: hidden;
        }
        th {
            background: #1a4b6d;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e6edf4;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .tip-card {
            background: #f0f7fe;
            border-left: 5px solid #1a4b6d;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        .tip-card strong {
            color: #0b2a3e;
        }
        .quote-block {
            background: #faf3e8;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            font-style: italic;
            margin: 1.5rem 0;
            border-left: 6px solid #f3b229;
        }
        .quote-block cite {
            display: block;
            margin-top: 0.6rem;
            font-style: normal;
            font-weight: 600;
            color: #1a4b6d;
        }
        .btn-scroll-top {
            position: fixed;
            bottom: 1.8rem;
            right: 1.8rem;
            background: #1a4b6d;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            transition: background 0.25s, transform 0.2s;
            z-index: 900;
            border: none;
            cursor: pointer;
        }
        .btn-scroll-top:hover {
            background: #f3b229;
            color: #0b2a3e;
            transform: translateY(-4px);
        }