*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fb;
            color: #1e2a3e;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #0077b6;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #023e8a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2639 0%, #2c3e50 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f9c74f;
            text-shadow: 0 2px 8px rgba(249, 199, 79, 0.3);
            transition: opacity 0.3s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo span {
            color: #f94144;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 6px 18px;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #e0e6ed;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f9c74f;
            text-decoration: none;
        }
        .nav-list li a i {
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: #e9edf2;
            padding: 10px 0;
            border-bottom: 1px solid #d0d7de;
        }
        .breadcrumb {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
            font-size: 0.9rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #6c757d;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb .current {
            color: #6c757d;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a2639;
            margin-bottom: 0.75rem;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #f94144;
            margin-right: 12px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a2639;
            margin-top: 3rem;
            margin-bottom: 1rem;
            border-left: 6px solid #f9c74f;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #34495e;
            margin-top: 1.6rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2c3e50;
            background: #eef3f9;
            padding: 18px 24px;
            border-radius: 12px;
            border-left: 6px solid #f9c74f;
            margin-bottom: 2rem;
        }
        .highlight {
            background: #fff3cd;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4em;
            margin-right: 6px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 2rem 0;
        }
        .stat-card {
            background: #fff;
            padding: 24px 18px;
            border-radius: 16px;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
            text-align: center;
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid #e9edf2;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.10);
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f94144;
            display: block;
        }
        .stat-card .label {
            font-size: 1rem;
            color: #4a5568;
            margin-top: 6px;
        }
        .stat-card i {
            font-size: 2rem;
            color: #f9c74f;
            margin-bottom: 8px;
        }
        .featured-image {
            margin: 2.2rem 0;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.10);
            background: #dfe6ed;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            min-height: 240px;
            background: #b0c4d9;
        }
        .featured-image figcaption {
            padding: 14px 20px;
            font-size: 0.95rem;
            color: #4a5568;
            background: #fff;
            border-top: 1px solid #e9edf2;
            font-style: italic;
        }
        .interview-box {
            background: #f1f5f9;
            padding: 28px 30px;
            border-radius: 18px;
            margin: 2rem 0;
            border-left: 6px solid #f9c74f;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }
        .interview-box .q {
            font-weight: 700;
            color: #1a2639;
        }
        .interview-box .a {
            margin-left: 20px;
            color: #2c3e50;
        }
        .interview-box .speaker {
            font-weight: 700;
            color: #0077b6;
        }
        .pro-tip {
            background: #d4edda;
            padding: 18px 24px;
            border-radius: 14px;
            margin: 1.6rem 0;
            border-left: 6px solid #28a745;
        }
        .pro-tip i {
            color: #28a745;
            margin-right: 10px;
        }
        .related-links {
            background: #fff;
            padding: 18px 22px;
            border-radius: 14px;
            border: 1px solid #dde3ea;
            margin: 1.8rem 0;
        }
        .related-links ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .related-links li a {
            font-weight: 500;
        }
        .related-links li a i {
            margin-right: 6px;
            color: #f9c74f;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 2rem 0;
            border-radius: 14px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid #e9edf2;
        }
        th {
            background: #1a2639;
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .search-section {
            background: #fff;
            padding: 32px 28px;
            border-radius: 20px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
            margin: 3rem 0;
            border: 1px solid #e9edf2;
        }
        .search-section h2 i {
            color: #f9c74f;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #dde3ea;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #f9c74f;
        }
        .search-form button {
            padding: 14px 34px;
            background: #1a2639;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #2c3e50;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 3rem 0;
        }
        .feedback-card {
            background: #fff;
            padding: 28px 26px;
            border-radius: 20px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9edf2;
        }
        .feedback-card h2 {
            margin-top: 0;
            border-left-color: #f94144;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 10px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 12px 16px;
            border: 2px solid #dde3ea;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #f9c74f;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 14px 26px;
            background: #f94144;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .feedback-card button:hover {
            background: #d63031;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #f9c74f;
            cursor: default;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
            color: #f6a800;
        }
        @media (max-width:768px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer {
            background: #1a2639;
            color: #cfd9e6;
            padding: 40px 0 30px;
            margin-top: 40px;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
            justify-content: center;
        }
        .footer-links a {
            color: #b0c4d9;
            font-weight: 400;
            transition: color 0.25s;
        }
        .footer-links a:hover {
            color: #f9c74f;
            text-decoration: none;
        }
        .footer-copyright {
            text-align: center;
            font-size: 0.92rem;
            color: #8a9bb0;
            border-top: 1px solid #2c3e50;
            padding-top: 20px;
        }
        .footer-copyright strong {
            color: #f9c74f;
        }
        friend-link {
            display: block;
            text-align: center;
            padding: 18px 0 6px;
            font-size: 0.95rem;
            color: #b0c4d9;
        }
        friend-link a {
            color: #f9c74f;
            margin: 0 10px;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #fff;
            text-decoration: none;
        }
        @media (max-width: 900px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .header-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .nav-wrapper {
                flex-direction: column;
                align-items: stretch;
            }
            .nav-list {
                flex-direction: column;
                display: none;
                gap: 2px;
                padding-top: 12px;
            }
            .nav-list.show {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 10px 14px;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
                align-self: flex-end;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
                padding-left: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .interview-box {
                padding: 18px 16px;
            }
            .feedback-card {
                padding: 18px 16px;
            }
            .stat-card .num {
                font-size: 1.8rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        .text-muted {
            color: #6c757d;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .last-updated {
            display: inline-block;
            background: #e9edf2;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #4a5568;
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            margin-right: 6px;
            color: #f9c74f;
        }