*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f6f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: #004080;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2b3f 0%, #1a4a6b 100%);
            color: #fff;
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffd966;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #ffe48a;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 8px;
            color: #f9c74f;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.25s;
        }
        .nav-toggle:hover {
            border-color: #ffd966;
            color: #ffd966;
        }
        .main-nav {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e6f0fa;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: 0.3s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #ffd966;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #ffd966;
            color: #0b2b3f;
        }
        .breadcrumb-wrap {
            background: #eef3f7;
            padding: 12px 0;
            border-bottom: 1px solid #dde5ec;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.9rem;
            color: #4a5a6a;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 10px;
            color: #8899a8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #0066cc;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .hero {
            padding: 40px 0 20px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #0b2b3f;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .hero h1 i {
            color: #f9c74f;
        }
        .hero .subhead {
            font-size: 1.2rem;
            color: #3a5a6a;
            max-width: 750px;
            margin: 0 auto 20px;
        }
        .last-updated {
            display: inline-block;
            background: #e8f0f8;
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #2a4a5a;
            font-weight: 500;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 30px 0 60px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        .main-content section {
            margin-bottom: 48px;
            background: #fff;
            border-radius: 20px;
            padding: 32px 36px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.3s;
        }
        .main-content section:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #0b2b3f;
            margin-bottom: 20px;
            padding-bottom: 8px;
            border-bottom: 4px solid #f9c74f;
            display: inline-block;
        }
        .main-content h2 i {
            color: #f9c74f;
            margin-right: 10px;
        }
        .main-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1a4a6b;
            margin: 28px 0 12px;
        }
        .main-content h3 i {
            margin-right: 8px;
            color: #f9c74f;
        }
        .main-content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2a5a7a;
            margin: 20px 0 10px;
        }
        .main-content p {
            margin-bottom: 16px;
            color: #2a3a4a;
            font-size: 1.05rem;
        }
        .main-content ul,
        .main-content ol {
            margin: 12px 0 20px 24px;
            color: #2a3a4a;
        }
        .main-content li {
            margin-bottom: 8px;
            font-size: 1.02rem;
        }
        .main-content .highlight-box {
            background: #f0f7fe;
            border-left: 5px solid #f9c74f;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 20px 0;
        }
        .main-content .highlight-box strong {
            color: #0b2b3f;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f0f4f8;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #4a6a7a;
            text-align: center;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            margin: 16px 0;
        }
        .link-list a {
            background: #eef4fa;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: 0.25s;
        }
        .link-list a:hover {
            background: #dce6f0;
            text-decoration: none;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 20px;
            padding: 24px 22px;
            margin-bottom: 28px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0b2b3f;
            margin-bottom: 16px;
            border-bottom: 3px solid #f9c74f;
            padding-bottom: 6px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li a {
            display: block;
            padding: 6px 0;
            font-weight: 500;
        }
        .sidebar-card ul li a::before {
            content: "🎯 ";
            font-size: 0.9rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #dde5ec;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: 0.3s;
        }
        .search-form input:focus {
            border-color: #f9c74f;
            box-shadow: 0 0 0 3px rgba(249, 199, 79, 0.2);
        }
        .search-form button {
            background: #0b2b3f;
            color: #fff;
            border: none;
            padding: 0 22px;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.3s;
        }
        .search-form button:hover {
            background: #1a4a6b;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: #1a2a3a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dde5ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: 0.3s;
            background: #fafcfe;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #f9c74f;
            box-shadow: 0 0 0 3px rgba(249, 199, 79, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-submit {
            background: linear-gradient(135deg, #f9c74f, #f7b731);
            color: #0b2b3f;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: 0.3s;
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 199, 79, 0.4);
        }
        .score-stars {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
        }
        .score-stars i {
            transition: 0.2s;
        }
        .score-stars i:hover,
        .score-stars i.active {
            color: #f9c74f;
        }
        friend-link {
            display: block;
            padding: 20px 0;
            border-top: 1px solid #dde5ec;
            margin-top: 20px;
        }
        friend-link .fl-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0b2b3f;
            margin-bottom: 12px;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 6px 18px;
            background: #eef4fa;
            border-radius: 30px;
            font-size: 0.95rem;
        }
        friend-link a:hover {
            background: #dce6f0;
            text-decoration: none;
        }
        .site-footer {
            background: #0b2b3f;
            color: #c8dae8;
            padding: 40px 0 30px;
            margin-top: 20px;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
        }
        .site-footer .copyright {
            font-size: 0.95rem;
            color: #8aaabc;
        }
        .site-footer .copyright strong {
            color: #ffd966;
        }
        .site-footer a {
            color: #b8d4e8;
        }
        .site-footer a:hover {
            color: #ffd966;
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
            .main-content section {
                padding: 24px 20px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(11, 43, 63, 0.97);
                padding: 16px 0;
                border-radius: 0 0 16px 16px;
                margin-top: 12px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 24px;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero .subhead {
                font-size: 1rem;
            }
            .main-content section {
                padding: 20px 16px;
            }
            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 14px;
            }
            .search-form {
                flex-wrap: wrap;
            }
            .search-form button {
                width: 100%;
                padding: 12px;
            }
            .score-stars {
                font-size: 1.5rem;
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .main-content section {
                padding: 16px 12px;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .bubble-bg {
            background: radial-gradient(circle at 20% 30%, #f0f9ff, #e6f0fa);
        }