* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 28px;
            padding: 1.2rem 1.8rem 2rem;
            margin-top: 1rem;
            margin-bottom: 2rem;
        }
        .top-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid #e9edf2;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            text-decoration: none;
            color: #0f172a;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            color: #2563eb;
            font-size: 2rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, #2563eb, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1e293b;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f6;
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 0.8rem;
            align-items: center;
        }
        .main-nav a {
            text-decoration: none;
            color: #334155;
            font-weight: 500;
            padding: 0.3rem 0.6rem;
            border-radius: 40px;
            font-size: 0.95rem;
            transition: all 0.2s;
        }
        .main-nav a:hover {
            background: #eef2f6;
            color: #0f172a;
        }
        .main-nav a i {
            margin-right: 0.3rem;
            color: #2563eb;
            font-size: 0.85rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.6rem;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.85rem;
            color: #64748b;
        }
        .breadcrumb a {
            color: #2563eb;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.6rem;
            color: #94a3b8;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.6rem 0 0.8rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #0f172a, #2563eb);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid #e9edf2;
            color: #0f172a;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.6rem 0 0.6rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem;
            color: #334155;
        }
        p {
            margin-bottom: 1rem;
            color: #1e293b;
        }
        .content-img {
            max-width: 100%;
            height: auto;
            border-radius: 20px;
            margin: 1.5rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            display: block;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #64748b;
            text-align: center;
            margin-top: -1rem;
            margin-bottom: 1.5rem;
        }
        .highlight-box {
            background: #f1f5f9;
            border-left: 6px solid #2563eb;
            padding: 1.2rem 1.6rem;
            border-radius: 14px;
            margin: 1.6rem 0;
        }
        .highlight-box i {
            color: #2563eb;
            margin-right: 0.5rem;
        }
        .data-card {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin: 1.6rem 0;
        }
        .data-card .card {
            background: #f8fafc;
            padding: 1.2rem 1rem;
            border-radius: 16px;
            text-align: center;
            border: 1px solid #e2e8f0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .data-card .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
        }
        .data-card .card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #2563eb;
        }
        .data-card .card .label {
            font-size: 0.9rem;
            color: #475569;
        }
        .interview-block {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 1.6rem 2rem;
            margin: 1.8rem 0;
        }
        .interview-block i {
            color: #2563eb;
            font-size: 1.2rem;
        }
        .strategy-list {
            list-style: none;
            padding: 0;
        }
        .strategy-list li {
            padding: 0.6rem 0 0.6rem 2rem;
            position: relative;
            border-bottom: 1px solid #e9edf2;
        }
        .strategy-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: #2563eb;
            position: absolute;
            left: 0;
        }
        .faq-item {
            padding: 1rem 0;
            border-bottom: 1px solid #e9edf2;
        }
        .faq-item strong {
            color: #0f172a;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2.4rem 0;
        }
        @media (max-width:700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .interaction-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #e2e8f0;
        }
        .interaction-card h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.7rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border 0.2s;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            outline: none;
            border-color: #2563eb;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card .btn {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 0.7rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .interaction-card .btn:hover {
            background: #1d4ed8;
        }
        .interaction-card .btn:active {
            transform: scale(0.97);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f59e0b;
        }
        .footer {
            margin-top: 2.8rem;
            padding-top: 1.6rem;
            border-top: 2px solid #e9edf2;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 1.2rem;
            padding: 1rem 0;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #2563eb;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            font-size: 0.85rem;
            color: #64748b;
            padding: 1rem 0 0.4rem;
            border-top: 1px solid #e2e8f0;
            margin-top: 0.8rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.5rem;
        }
        .last-updated {
            font-weight: 500;
            color: #475569;
        }
        @media (max-width:768px) {
            .wrapper {
                padding: 0.8rem 1rem 1.6rem;
                border-radius: 16px;
            }
            .my-logo {
                font-size: 1.7rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .data-card {
                grid-template-columns: 1fr 1fr;
            }
            .interview-block {
                padding: 1.2rem 1.2rem;
            }
        }
        @media (max-width:480px) {
            .data-card {
                grid-template-columns: 1fr;
            }
            .interaction-card {
                padding: 1.2rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .schema-hidden {
            display: none;
        }