*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fa;
            color: #2c3e50;
            line-height: 1.75;
        }
        a {
            color: #e67e22;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #d35400;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #fff;
            border-bottom: 3px solid #e67e22;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 20px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: .5px;
            background: linear-gradient(135deg, #e67e22, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-transform: uppercase;
            text-decoration: none;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: .8;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2c3e50;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .nav-toggle:hover {
            background: #f0f0f0;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav li a {
            display: block;
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 500;
            font-size: .9rem;
            color: #2c3e50;
            background: #f8f9fa;
            transition: all .2s;
        }
        .main-nav li a:hover {
            background: #e67e22;
            color: #fff;
            text-decoration: none;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 10px;
                border-top: 1px solid #eee;
                padding-top: 10px;
            }
            .main-nav.open {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 4px;
            }
            .main-nav li a {
                border-radius: 8px;
                padding: 12px 16px;
                background: #f8f9fa;
                border-left: 3px solid #e67e22;
            }
        }
        .breadcrumb-bar {
            background: #ecf0f1;
            padding: 10px 0;
            font-size: .85rem;
            border-bottom: 1px solid #dce1e3;
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: #7f8c8d;
        }
        .breadcrumb-bar .sep {
            color: #bdc3c7;
        }
        .breadcrumb-bar .current {
            color: #e67e22;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
            color: #fff;
            padding: 80px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(230, 126, 34, .2);
            border-radius: 50%;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 24px;
            opacity: .9;
        }
        .hero .btn-hero {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            transition: transform .2s, background .2s;
            text-decoration: none;
        }
        .hero .btn-hero:hover {
            background: #d35400;
            transform: translateY(-2px);
        }
        .content-area {
            background: #fff;
            border-radius: 12px;
            padding: 40px;
            margin: 30px auto;
            box-shadow: 0 2px 20px rgba(0, 0, 0, .04);
            max-width: 980px;
        }
        .content-area h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e67e22;
            position: relative;
        }
        .content-area h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background: #f39c12;
        }
        .content-area h3 {
            font-size: 1.4rem;
            margin: 28px 0 12px;
            color: #34495e;
        }
        .content-area h4 {
            font-size: 1.1rem;
            margin: 20px 0 10px;
            color: #7f8c8d;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: .5px;
        }
        .content-area p {
            margin-bottom: 16px;
        }
        .content-area ul,
        .content-area ol {
            margin: 16px 0 16px 24px;
        }
        .content-area li {
            margin-bottom: 8px;
        }
        .content-area img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .08);
        }
        .highlight-box {
            background: #fef9f0;
            border-left: 4px solid #e67e22;
            padding: 18px 24px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 24px 16px;
            text-align: center;
            transition: transform .2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #e67e22;
            display: block;
        }
        .stat-card .label {
            font-size: .9rem;
            color: #7f8c8d;
            margin-top: 6px;
        }
        .pro-tip {
            background: #e8f6f3;
            border-radius: 8px;
            padding: 16px 20px;
            margin: 20px 0;
            border-left: 4px solid #1abc9c;
        }
        .interview-box {
            background: #f4f6f7;
            border-radius: 12px;
            padding: 24px;
            margin: 24px 0;
            border: 1px solid #e0e4e6;
        }
        .interview-box .avatar {
            font-size: 2rem;
            display: inline-block;
            margin-right: 12px;
            vertical-align: middle;
        }
        .user-form {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 28px;
            margin: 24px 0;
            border: 1px solid #e9ecef;
        }
        .user-form label {
            font-weight: 600;
            display: block;
            margin-bottom: 6px;
            font-size: .95rem;
        }
        .user-form input[type="text"],
        .user-form input[type="email"],
        .user-form textarea,
        .user-form select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-bottom: 16px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color .2s;
        }
        .user-form input:focus,
        .user-form textarea:focus {
            outline: none;
            border-color: #e67e22;
            box-shadow: 0 0 0 3px rgba(230, 126, 34, .15);
        }
        .user-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .user-form button {
            background: #e67e22;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s;
        }
        .user-form button:hover {
            background: #d35400;
        }
        .rating-stars {
            display: inline-flex;
            flex-direction: row-reverse;
            gap: 4px;
            font-size: 1.6rem;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            color: #ddd;
            cursor: pointer;
            transition: color .2s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f1c40f;
        }
        .faq-item {
            border-bottom: 1px solid #eee;
            padding: 16px 0;
        }
        .faq-item summary {
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: .9rem;
            color: #e67e22;
            transition: transform .2s;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .answer {
            padding-top: 12px;
            color: #555;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 50px 20px 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .site-footer h4 {
            color: #f39c12;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #bdc3c7;
        }
        .site-footer a:hover {
            color: #f39c12;
        }
        friend-link {
            display: block;
            background: #34495e;
            padding: 14px 20px;
            border-radius: 8px;
            margin: 14px 0;
            font-size: .9rem;
        }
        friend-link a {
            margin: 0 8px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #445;
            margin-top: 30px;
            font-size: .85rem;
            color: #95a5a6;
        }
        @media(max-width:768px) {
            .content-area {
                padding: 20px;
                margin: 16px 10px;
                border-radius: 8px;
            }
            .hero {
                padding: 50px 16px;
            }
            .content-area h2 {
                font-size: 1.4rem;
            }
        }
        @media(max-width:480px) {
            .content-area {
                padding: 14px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }