*,
        *::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, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1a1a2e;
            background: #f8f9fc;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #0f3460;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e94560;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f3460 0%, #1a1a2e 100%);
            color: #fff;
            padding: 0.75rem 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: 0.75rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #e94560, #f5a623);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(233, 69, 96, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.65rem;
            font-weight: 400;
            -webkit-text-fill-color: #aab;
            color: #aab;
            display: block;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a {
            color: #ddd;
            padding: 0.45rem 0.9rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #e94560;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #fff;
            padding: 0.7rem 0;
            border-bottom: 1px solid #eef0f5;
            font-size: 0.85rem;
            color: #555;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #0f3460;
        }
        .breadcrumb .current {
            color: #888;
            font-weight: 500;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .article-card {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }
        .article-card h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0f3460;
            margin-bottom: 0.5rem;
            letter-spacing: -0.5px;
        }
        .article-card h1 .highlight {
            background: linear-gradient(135deg, #e94560, #f5a623);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-card .meta {
            color: #777;
            font-size: 0.9rem;
            margin-bottom: 1.8rem;
            border-bottom: 1px solid #f0f2f7;
            padding-bottom: 1rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
        }
        .article-card .meta i {
            margin-right: 0.4rem;
            color: #e94560;
        }
        .article-card h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f3460;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            border-left: 5px solid #e94560;
            padding-left: 1rem;
        }
        .article-card h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #16213e;
            margin-top: 2rem;
            margin-bottom: 0.7rem;
        }
        .article-card h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #1a1a2e;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .article-card p {
            margin-bottom: 1.1rem;
            color: #2d2d44;
        }
        .article-card p.lead {
            font-size: 1.15rem;
            color: #333;
            font-weight: 400;
        }
        .article-card ul,
        .article-card ol {
            margin-bottom: 1.2rem;
            color: #2d2d44;
        }
        .article-card li {
            margin-bottom: 0.4rem;
        }
        .article-card .feature-box {
            background: #f0f4ff;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
            border-left: 6px solid #0f3460;
        }
        .article-card .feature-box h4 {
            margin-top: 0;
            color: #0f3460;
        }
        .article-card .img-wrapper {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .article-card .img-wrapper figcaption {
            background: #f5f7fc;
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #555;
            text-align: center;
            font-style: italic;
        }
        .interactive-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        @media (max-width: 700px) {
            .interactive-grid {
                grid-template-columns: 1fr;
            }
        }
        .card-module {
            background: #fff;
            border-radius: 18px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.06);
            border: 1px solid #f0f2f7;
        }
        .card-module h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .card-module h3 i {
            color: #e94560;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            margin-top: 0.8rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 160px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #e0e4ef;
            border-radius: 60px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
            background: #fafbff;
        }
        .search-form input:focus {
            border-color: #0f3460;
        }
        .search-form button {
            background: #0f3460;
            color: #fff;
            border: none;
            padding: 0.75rem 1.6rem;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e94560;
            transform: scale(1.02);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #e0e4ef;
            border-radius: 16px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            background: #fafbff;
            transition: border 0.25s;
        }
        .comment-form textarea:focus {
            border-color: #0f3460;
            outline: none;
        }
        .comment-form .row {
            display: flex;
            gap: 0.8rem;
            margin-top: 0.7rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .comment-form .row input {
            flex: 1;
            min-width: 140px;
            padding: 0.65rem 1.2rem;
            border: 2px solid #e0e4ef;
            border-radius: 60px;
            font-size: 0.95rem;
            background: #fafbff;
        }
        .comment-form .row input:focus {
            border-color: #0f3460;
            outline: none;
        }
        .comment-form .row button {
            background: #0f3460;
            color: #fff;
            border: none;
            padding: 0.65rem 1.8rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .comment-form .row button:hover {
            background: #e94560;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5a623;
            transform: scale(1.1);
        }
        .rating-stars i.active {
            color: #f5a623;
        }
        friend-link {
            display: block;
            background: #1a1a2e;
            color: #ccc;
            padding: 2rem 0;
            margin-top: 2rem;
            border-top: 4px solid #e94560;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            justify-content: center;
        }
        friend-link a {
            color: #aab;
            font-size: 0.95rem;
            transition: color 0.2s;
            padding: 0.2rem 0.4rem;
        }
        friend-link a:hover {
            color: #f5a623;
            text-decoration: none;
        }
        friend-link .label {
            font-weight: 600;
            color: #fff;
            font-size: 1rem;
            letter-spacing: 0.5px;
            margin-right: 0.5rem;
        }
        .site-footer {
            background: #0f0f1a;
            color: #99a;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid #222;
        }
        .site-footer .copyright {
            letter-spacing: 0.3px;
        }
        .site-footer .copyright i {
            color: #e94560;
        }
        @media (max-width: 820px) {
            .article-card {
                padding: 1.5rem 1.2rem;
            }
            .article-card h1 {
                font-size: 2rem;
            }
            .article-card h2 {
                font-size: 1.6rem;
            }
            .header-inner {
                gap: 0.4rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo small {
                font-size: 0.55rem;
            }
        }
        @media (max-width: 680px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(15, 52, 96, 0.98);
                border-radius: 16px;
                padding: 1rem 0.5rem;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-radius: 30px;
                width: 100%;
                text-align: center;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
            .article-card h1 {
                font-size: 1.7rem;
            }
            .article-card h2 {
                font-size: 1.4rem;
            }
            .article-card h3 {
                font-size: 1.2rem;
            }
            .interactive-grid {
                grid-template-columns: 1fr;
            }
            .card-module {
                padding: 1.2rem 1.2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .comment-form .row {
                flex-direction: column;
            }
            .comment-form .row input {
                width: 100%;
            }
            .comment-form .row button {
                width: 100%;
                justify-content: center;
            }
            friend-link .container {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        @media (max-width: 420px) {
            .article-card {
                padding: 1rem 0.9rem;
            }
            .article-card h1 {
                font-size: 1.4rem;
            }
            .article-card .meta {
                font-size: 0.8rem;
                gap: 0.3rem 0.8rem;
            }
        }
        .text-muted {
            color: #888;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }
        .badge {
            display: inline-block;
            background: #e94560;
            color: #fff;
            padding: 0.15rem 0.8rem;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }