*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #c44536;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0d1b2a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #c44536;
            padding-left: 20px;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #e0e7ef;
            padding-bottom: 6px;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c4c6b;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.6rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        hr {
            border: none;
            border-top: 2px dashed #cbd5e0;
            margin: 2.4rem 0;
        }
        blockquote {
            border-left: 5px solid #c44536;
            background: #edf2f7;
            padding: 1rem 1.6rem;
            margin: 1.6rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2d3748;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
        }
        .badge {
            display: inline-block;
            background: #c44536;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .text-muted {
            color: #5a6a7a;
            font-size: 0.95rem;
        }
        .text-center {
            text-align: center;
        }
        header {
            background: #ffffff;
            border-radius: 0 0 24px 24px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
            padding: 12px 24px;
            margin: 0 -16px 24px -16px;
            position: relative;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1280px;
            margin: 0 auto;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0d1b2a, #1e6f9f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            background: #c44536;
            -webkit-text-fill-color: #fff;
            background-clip: unset;
            padding: 6px 10px;
            border-radius: 12px;
            font-size: 1.2rem;
            color: #fff;
        }
        .my-logo span {
            font-weight: 300;
            -webkit-text-fill-color: #5a6a7a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0d1b2a;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 8px 20px;
            flex-wrap: wrap;
        }
        .nav-wrap a {
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
            color: #1a2634;
        }
        .nav-wrap a:hover {
            background: #e8edf4;
            color: #c44536;
            text-decoration: none;
        }
        .nav-wrap a i {
            margin-right: 6px;
            color: #1e6f9f;
        }
        .breadcrumb {
            background: transparent;
            padding: 10px 0 6px 0;
            font-size: 0.9rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            margin: 0 -16px 12px -16px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb a::after {
            content: "›";
            margin-left: 8px;
            color: #9aabbc;
        }
        .breadcrumb span.current {
            color: #2d3748;
            font-weight: 500;
        }
        .search-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 20px 24px;
            margin: 20px 0 28px 0;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8edf4;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .search-form input[type="text"] {
            flex: 1 1 260px;
            padding: 12px 18px;
            border: 1px solid #d1dbe8;
            border-radius: 40px;
            font-size: 1rem;
            background: #f9fbfd;
            transition: border 0.2s, box-shadow 0.2s;
            outline: none;
        }
        .search-form input[type="text"]:focus {
            border-color: #1e6f9f;
            box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.15);
        }
        .search-form button {
            background: #c44536;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #a6362a;
            transform: translateY(-1px);
        }
        .interaction-panel {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 32px;
            background: #ffffff;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #e8edf4;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
        }
        .rating-box,
        .comment-box {
            flex: 1 1 280px;
        }
        .rating-box h4,
        .comment-box h4 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #e2c14b;
            margin: 8px 0 12px 0;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.25);
            color: #c9a83a;
        }
        .rating-form button,
        .comment-form button {
            background: #1e6f9f;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #15507a;
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d1dbe8;
            border-radius: 16px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 80px;
            background: #f9fbfd;
            transition: border 0.2s;
            outline: none;
        }
        .comment-form textarea:focus {
            border-color: #1e6f9f;
            box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.1);
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 10px 16px;
            border: 1px solid #d1dbe8;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #f9fbfd;
            margin-bottom: 10px;
            outline: none;
        }
        .comment-form input[type="text"]:focus {
            border-color: #1e6f9f;
        }
        .comment-form .row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .comment-form .row input {
            flex: 1;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            background: #e8edf4;
        }
        .featured-image img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #4a5a6a;
            background: #ffffff;
            border-top: 1px solid #e8edf4;
        }
        footer {
            background: #0d1b2a;
            color: #cbd5e0;
            border-radius: 24px 24px 0 0;
            padding: 36px 28px 24px;
            margin: 40px -16px 0 -16px;
        }
        footer .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
        }
        footer a {
            color: #9fc5e8;
        }
        footer a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            margin: 14px 0 20px 0;
            padding: 16px 20px;
            background: #1a2d42;
            border-radius: 16px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 4px 0;
            font-weight: 500;
        }
        .copyright {
            border-top: 1px solid #2a4055;
            padding-top: 18px;
            margin-top: 12px;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            color: #8fa0b0;
        }
        .copyright strong {
            color: #cbd5e0;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 12px;
            }
            header {
                padding: 10px 16px;
                margin-left: -12px;
                margin-right: -12px;
            }
            .hamburger {
                display: block;
            }
            .nav-wrap {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 0 4px 0;
                gap: 4px;
                border-top: 1px solid #e8edf4;
                margin-top: 8px;
            }
            .nav-wrap.open {
                display: flex;
            }
            .nav-wrap a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 10px;
            }
            h1 {
                font-size: 1.7rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding-left: 12px;
                padding-right: 12px;
                margin-left: -12px;
                margin-right: -12px;
            }
            .search-section {
                padding: 16px;
            }
            .interaction-panel {
                padding: 18px;
                gap: 18px;
            }
            footer {
                padding: 28px 18px 18px;
                margin-left: -12px;
                margin-right: -12px;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .search-form button {
                flex: 1 1 100%;
                justify-content: center;
            }
            .search-form input[type="text"] {
                flex: 1 1 100%;
            }
            .comment-form .row {
                flex-direction: column;
            }
            h1 {
                font-size: 1.4rem;
            }
            .featured-image img {
                max-height: 240px;
            }
        }
        .container {
            max-width: 1000px;
            margin: 0 auto;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .last-updated {
            display: inline-block;
            background: #edf2f7;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #2d3748;
            font-weight: 500;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 1.6rem 0;
        }
        .stat-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 20px 16px;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8edf4;
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #c44536;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #5a6a7a;
            font-weight: 500;
        }
        .toc {
            background: #ffffff;
            border-radius: 16px;
            padding: 20px 24px;
            border: 1px solid #e8edf4;
            margin: 1.6rem 0;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .toc ul li {
            padding: 4px 0;
            border-bottom: 1px solid #f0f3f7;
        }
        .toc ul li a {
            color: #1e6f9f;
            font-weight: 500;
        }
        .toc ul li a:hover {
            color: #c44536;
        }
        @media print {
            .search-section,
            .interaction-panel,
            .hamburger,
            .nav-wrap {
                display: none !important;
            }
            header {
                box-shadow: none;
                border-bottom: 2px solid #000;
            }
            body {
                background: #fff;
                color: #000;
            }
            a {
                color: #000;
                text-decoration: underline;
            }
        }