* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 20, 40, 0.06);
            border-radius: 32px;
            padding: 24px 32px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0 16px;
            border-bottom: 2px solid #e9edf4;
            position: relative;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #0b2b4a;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            color: #e67e22;
            font-size: 1.8rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, #1a3a5a, #2d6a9f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a3a5a;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f7;
        }
        nav#mainNav {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
        }
        nav#mainNav a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        nav#mainNav a:hover,
        nav#mainNav a.active {
            color: #1a5a8a;
            border-bottom-color: #e67e22;
        }
        .breadcrumb {
            width: 100%;
            margin-top: 12px;
            font-size: 0.85rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 4px 8px;
            padding: 8px 0 4px;
            border-top: 1px solid #eef2f7;
        }
        .breadcrumb a {
            color: #2d6a9f;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #9aabbb;
        }
        main {
            padding: 32px 0 20px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0b2b4a;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        h1 i {
            color: #e67e22;
            margin-right: 10px;
        }
        .last-updated {
            display: block;
            font-size: 0.9rem;
            color: #6a7a8a;
            margin-bottom: 28px;
            border-left: 4px solid #e67e22;
            padding-left: 16px;
            font-weight: 400;
        }
        .last-updated i {
            margin-right: 6px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #123a5a;
            margin-top: 48px;
            margin-bottom: 18px;
            padding-bottom: 6px;
            border-bottom: 3px solid #e9edf4;
        }
        h2 i {
            color: #e67e22;
            margin-right: 10px;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a4a6a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h3 i {
            color: #2d6a9f;
            margin-right: 8px;
            font-size: 1.2rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4a5a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #1e2c3a;
        }
        .content-img {
            margin: 32px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 20, 40, 0.08);
        }
        .content-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .content-img figcaption {
            padding: 12px 20px;
            background: #f0f4fa;
            font-size: 0.9rem;
            color: #3a4a5a;
            font-style: italic;
        }
        .highlight-box {
            background: #f0f6fe;
            border-left: 6px solid #2d6a9f;
            padding: 20px 28px;
            border-radius: 16px;
            margin: 28px 0;
        }
        .highlight-box strong {
            color: #0b2b4a;
        }
        .strategy-list {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
            margin: 20px 0 28px;
        }
        .strategy-list li {
            background: #f4f8fe;
            padding: 14px 20px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 500;
            transition: 0.2s;
        }
        .strategy-list li:hover {
            background: #e6eef9;
            transform: translateY(-2px);
        }
        .strategy-list li i {
            color: #e67e22;
            font-size: 1.3rem;
            width: 28px;
            text-align: center;
        }
        .interview-block {
            background: #f8f5f0;
            border-radius: 20px;
            padding: 28px 32px;
            margin: 32px 0;
            border: 1px solid #e8e0d6;
        }
        .interview-block .quote {
            font-size: 1.1rem;
            font-style: italic;
            color: #2a3a4a;
            border-left: 4px solid #e67e22;
            padding-left: 20px;
            margin: 16px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin: 28px 0;
        }
        .stat-card {
            background: #ffffff;
            border: 1px solid #e4eaf2;
            border-radius: 16px;
            padding: 24px 16px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
        }
        .stat-card .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #0b2b4a;
        }
        .stat-card .label {
            color: #4a5a6a;
            font-size: 0.95rem;
            margin-top: 4px;
        }
        .faq-item {
            border-bottom: 1px solid #e4eaf2;
            padding: 18px 0;
        }
        .faq-item h4 {
            margin: 0 0 6px;
            color: #0b2b4a;
        }
        .faq-item p {
            margin: 0;
            color: #2a3a4a;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin: 48px 0 32px;
            padding: 32px 0;
            border-top: 2px solid #e9edf4;
            border-bottom: 2px solid #e9edf4;
        }
        .interactive-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 24px 20px;
        }
        .interactive-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .interactive-card input,
        .interactive-card textarea,
        .interactive-card select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d0d8e2;
            border-radius: 12px;
            font-size: 0.95rem;
            background: #ffffff;
            transition: 0.2s;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .interactive-card input:focus,
        .interactive-card textarea:focus,
        .interactive-card select:focus {
            outline: none;
            border-color: #2d6a9f;
            box-shadow: 0 0 0 3px rgba(45, 106, 159, 0.12);
        }
        .interactive-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interactive-card .btn {
            background: #1a3a5a;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
            width: 100%;
        }
        .interactive-card .btn:hover {
            background: #2d6a9f;
            transform: scale(1.01);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #d0d8e2;
            cursor: pointer;
            margin: 8px 0 16px;
            justify-content: center;
        }
        .rating-stars i.active {
            color: #f1c40f;
        }
        .rating-stars i:hover {
            color: #f1c40f;
        }
        .intext-link {
            color: #1a5a8a;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px dotted #b0c8dd;
            transition: 0.2s;
        }
        .intext-link:hover {
            color: #e67e22;
            border-bottom-color: #e67e22;
        }
        friend-link {
            display: block;
            margin-top: 32px;
            padding: 28px 0 16px;
            border-top: 2px solid #e9edf4;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.2rem;
            color: #1a3a5a;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            padding: 8px 0 0;
        }
        friend-link ul li a {
            color: #2d6a9f;
            text-decoration: none;
            font-size: 0.95rem;
        }
        friend-link ul li a:hover {
            color: #e67e22;
            text-decoration: underline;
        }
        footer {
            padding: 24px 0 8px;
            text-align: center;
            color: #4a5a6a;
            font-size: 0.9rem;
            border-top: 1px solid #eef2f7;
            margin-top: 20px;
        }
        footer i {
            color: #1a3a5a;
        }
        @media (max-width: 820px) {
            .wrapper {
                padding: 16px 16px 32px;
                border-radius: 20px;
                margin-top: 12px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .strategy-list {
                grid-template-columns: 1fr;
            }
            .interactive-section {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .my-logo {
                font-size: 1.7rem;
            }
            .hamburger {
                display: block;
            }
            nav#mainNav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 16px 0 8px;
                border-top: 1px solid #e9edf4;
                margin-top: 12px;
            }
            nav#mainNav.open {
                display: flex;
            }
            nav#mainNav a {
                padding: 8px 0;
                font-size: 1rem;
                width: 100%;
                border-bottom: 1px solid #f0f4fa;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .interview-block {
                padding: 20px 18px;
            }
        }
        @media (max-width: 480px) {
            .wrapper {
                padding: 12px 12px 24px;
            }
            h1 {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .interactive-card {
                padding: 18px 14px;
            }
        }
        @media (min-width:821px) {
            .hamburger {
                display: none;
            }
            nav#mainNav {
                display: flex !important;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        ::selection {
            background: #c4d8ec;
            color: #0b2b4a;
        }