* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #ba2d0b;
            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%, #1a4a5f 100%);
            color: #fff;
            padding: 16px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.75rem;
            font-weight: 800;
            color: #facc15;
            text-decoration: none;
            letter-spacing: 1px;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
            color: #fde047;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f97316;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list li a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover {
            color: #facc15;
            border-bottom-color: #facc15;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px 4px;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: #facc15;
            border-radius: 4px;
            transition: 0.3s;
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 10px;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb .current {
            color: #64748b;
            font-weight: 500;
        }
        .main-content {
            flex: 1;
            padding: 40px 0 60px;
        }
        .article-card {
            background: #fff;
            border-radius: 24px;
            padding: 40px 36px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0b2b3f;
            margin-bottom: 12px;
        }
        h1 i {
            color: #f97316;
            margin-right: 10px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #1a3a4a;
            margin-top: 48px;
            margin-bottom: 16px;
            border-left: 6px solid #f97316;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.45rem;
            font-weight: 600;
            color: #1e4a5f;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2d5a6a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #1e293b;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #334155;
            border-left: 4px solid #facc15;
            padding-left: 20px;
            background: #f8fafc;
            border-radius: 0 12px 12px 0;
            padding: 16px 20px;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 6px solid #facc15;
            padding: 20px 24px;
            border-radius: 0 16px 16px 0;
            margin: 28px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 28px 0;
        }
        .stat-item {
            background: #f1f5f9;
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
        }
        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ba2d0b;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: #475569;
            margin-top: 4px;
        }
        .feature-img {
            margin: 32px 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .search-section {
            background: linear-gradient(135deg, #eef2f7, #ffffff);
            border-radius: 20px;
            padding: 32px 28px;
            margin: 36px 0;
            border: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 14px 20px;
            border: 2px solid #cbd5e1;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: #f97316;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.15);
        }
        .search-form button {
            background: #0b2b3f;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #ba2d0b;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin: 40px 0;
        }
        @media (max-width: 768px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-box,
        .rating-box {
            background: #f8fafc;
            border-radius: 20px;
            padding: 28px 24px;
            border: 1px solid #e2e8f0;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 100px;
            padding: 14px 16px;
            border: 2px solid #cbd5e1;
            border-radius: 16px;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #f97316;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.1);
            outline: none;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            margin: 8px 0 14px;
            transition: 0.2s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #f97316;
            outline: none;
        }
        .comment-form .btn {
            background: #0b2b3f;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form .btn:hover {
            background: #ba2d0b;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 6px;
            margin: 12px 0 18px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #facc15;
        }
        .interview-card {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 28px;
            margin: 28px 0;
            border-left: 6px solid #0b2b3f;
        }
        .interview-card .quote {
            font-style: italic;
            font-size: 1.1rem;
            color: #1e293b;
        }
        .interview-card .attribution {
            font-weight: 600;
            margin-top: 12px;
            color: #0b2b3f;
        }
        friend-link {
            display: block;
            background: #f1f5f9;
            border-radius: 20px;
            padding: 28px 32px;
            margin: 40px 0 20px;
            border: 1px solid #e2e8f0;
        }
        friend-link h3 {
            margin-top: 0;
            color: #0b2b3f;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-top: 12px;
        }
        friend-link ul li a {
            font-weight: 500;
            padding: 4px 0;
            border-bottom: 2px solid transparent;
        }
        friend-link ul li a:hover {
            border-bottom-color: #f97316;
            text-decoration: none;
        }
        .site-footer {
            background: #0b2b3f;
            color: #cbd5e1;
            padding: 32px 0 24px;
            margin-top: 40px;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid #1e4a5f;
            padding-top: 20px;
            margin-top: 12px;
        }
        .site-footer a {
            color: #facc15;
        }
        .site-footer a:hover {
            color: #fde047;
        }
        @media (max-width: 900px) {
            .article-card {
                padding: 28px 18px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b2b3f;
                padding: 16px 0 20px;
                margin-top: 12px;
                border-top: 1px solid #1e4a5f;
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 16px;
                display: block;
                border-bottom: 1px solid #1a4a5f;
            }
            .header-inner {
                align-items: center;
            }
            .nav-wrapper {
                width: 100%;
                flex-wrap: wrap;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            h1 {
                font-size: 1.7rem;
            }
            .article-card {
                padding: 20px 14px;
            }
            .feedback-grid {
                gap: 20px;
            }
        }
        .text-small {
            font-size: 0.9rem;
            color: #64748b;
        }
        .last-updated {
            display: inline-block;
            background: #e2e8f0;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #1e293b;
            margin-bottom: 20px;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .inline-icon {
            margin-right: 6px;
            color: #f97316;
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: #facc15;
            color: #0b2b3f;
            padding: 8px 16px;
            font-weight: 600;
            z-index: 9999;
            transition: top 0.2s;
        }
        .skip-link:focus {
            top: 0;
        }