*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.75;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
            word-wrap: break-word;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 3px solid #e2e8f0;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        strong,
        b {
            color: #0f172a;
            font-weight: 700;
        }
        em {
            font-style: italic;
        }
        hr {
            border: none;
            border-top: 2px solid #e2e8f0;
            margin: 2.5rem 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 0.5rem;
        }
        header {
            background: linear-gradient(135deg, #1e293b, #0f172a);
            color: #f8fafc;
            padding: 1.2rem 1.5rem;
            border-radius: 0 0 20px 20px;
            margin-bottom: 1.8rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 900;
            background: linear-gradient(135deg, #facc15, #fb923c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            display: inline-block;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            -webkit-text-fill-color: transparent;
        }
        .my-logo a::before {
            content: "🧩 ";
            -webkit-text-fill-color: initial;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #f8fafc;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.8rem 1.5rem;
        }
        nav a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        nav a:hover {
            color: #facc15;
            border-bottom-color: #facc15;
            text-decoration: none;
        }
        .nav-search-form {
            display: flex;
            gap: 0.3rem;
            margin-left: 0.5rem;
        }
        .nav-search-form input {
            padding: 0.4rem 0.8rem;
            border: none;
            border-radius: 30px;
            font-size: 0.85rem;
            background: #334155;
            color: #f8fafc;
            min-width: 140px;
            outline: none;
            transition: background 0.2s;
        }
        .nav-search-form input::placeholder {
            color: #94a3b8;
        }
        .nav-search-form input:focus {
            background: #475569;
        }
        .nav-search-form button {
            background: #facc15;
            border: none;
            border-radius: 30px;
            padding: 0.4rem 0.9rem;
            color: #1e293b;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .nav-search-form button:hover {
            background: #fbbf24;
            transform: scale(1.02);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.6rem 0;
            margin: 0 0 1.2rem 0;
            font-size: 0.88rem;
            color: #64748b;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #94a3b8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb .active {
            color: #1e293b;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #f1f5f9, #ffffff);
            border-radius: 24px;
            padding: 2.2rem 2rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
        }
        .hero h1 {
            font-size: 2.6rem;
            background: linear-gradient(135deg, #1e293b, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-top: 0;
        }
        .hero .subhead {
            font-size: 1.15rem;
            color: #475569;
            max-width: 700px;
            margin-bottom: 1.5rem;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem 2.5rem;
            margin-top: 1.2rem;
            padding-top: 1.2rem;
            border-top: 2px dashed #cbd5e1;
        }
        .hero-stats span {
            font-size: 0.95rem;
            color: #475569;
        }
        .hero-stats i {
            color: #f59e0b;
            margin-right: 0.4rem;
        }
        section {
            margin-bottom: 2.8rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin: 1.8rem 0;
        }
        .feature-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .feature-card i {
            font-size: 2rem;
            color: #3b82f6;
            margin-bottom: 0.7rem;
        }
        .feature-card h4 {
            margin-top: 0;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: #475569;
            margin-bottom: 0;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 1.5rem 0;
        }
        @media (max-width:700px) {
            .two-col {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        .img-wrapper {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #e2e8f0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .img-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #64748b;
            padding: 0.6rem 1rem;
            background: #f1f5f9;
            text-align: center;
        }
        .tip-list {
            list-style: none;
            padding: 0;
        }
        .tip-list li {
            padding: 0.8rem 1rem 0.8rem 2.5rem;
            background: #ffffff;
            border-radius: 12px;
            margin-bottom: 0.6rem;
            border-left: 4px solid #3b82f6;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
            position: relative;
        }
        .tip-list li::before {
            position: absolute;
            left: 0.8rem;
            top: 0.8rem;
            font-weight: 900;
            color: #3b82f6;
        }
        .tip-list li:nth-child(1)::before {
            content: "🔥";
        }
        .tip-list li:nth-child(2)::before {
            content: "⭐";
        }
        .tip-list li:nth-child(3)::before {
            content: "💡";
        }
        .tip-list li:nth-child(4)::before {
            content: "🚀";
        }
        .tip-list li:nth-child(5)::before {
            content: "🎯";
        }
        .tip-list li:nth-child(6)::before {
            content: "🧠";
        }
        .tip-list li:nth-child(7)::before {
            content: "⚡";
        }
        .tip-list li:nth-child(8)::before {
            content: "🏆";
        }
        .tip-list li:nth-child(9)::before {
            content: "💎";
        }
        .tip-list li:nth-child(10)::before {
            content: "🔁";
        }
        .interview-block {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 2rem;
            margin: 1.8rem 0;
            border-left: 6px solid #3b82f6;
            font-style: normal;
        }
        .interview-block .speaker {
            font-weight: 700;
            color: #0f172a;
            display: block;
            margin-top: 0.8rem;
        }
        .interview-block .speaker i {
            color: #f59e0b;
            margin-right: 0.4rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .data-table th {
            background: #1e293b;
            color: #f8fafc;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f8fafc;
        }
        .form-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 1.8rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
            margin: 1.5rem 0;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.92rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border-color 0.2s;
            background: #f8fafc;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #3b82f6;
            outline: none;
            background: #ffffff;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        @media (max-width:550px) {
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        .btn {
            background: #3b82f6;
            color: #ffffff;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #2563eb;
            transform: scale(1.02);
        }
        .btn-secondary {
            background: #f1f5f9;
            color: #1e293b;
        }
        .btn-secondary:hover {
            background: #e2e8f0;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #cbd5e1;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 0.6rem 1.2rem;
            margin: 1rem 0;
            padding: 0;
            list-style: none;
        }
        .link-grid li a {
            display: block;
            padding: 0.5rem 0.8rem;
            background: #ffffff;
            border-radius: 10px;
            border: 1px solid #e2e8f0;
            transition: background 0.2s, border-color 0.2s;
            font-size: 0.92rem;
        }
        .link-grid li a:hover {
            background: #f1f5f9;
            border-color: #3b82f6;
            text-decoration: none;
        }
        .link-grid li a::before {
            content: "🔗 ";
            font-size: 0.8rem;
        }
        footer {
            background: #1e293b;
            color: #cbd5e1;
            border-radius: 20px 20px 0 0;
            padding: 2.5rem 2rem 1.8rem;
            margin-top: 3rem;
        }
        footer a {
            color: #93c5fd;
        }
        footer a:hover {
            color: #facc15;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #f8fafc;
            margin-top: 0;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-grid ul li {
            margin-bottom: 0.4rem;
        }
        .footer-grid ul li a {
            font-size: 0.9rem;
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #94a3b8;
        }
        @media (max-width: 820px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 1rem;
                gap: 0.5rem;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 0.5rem 0.2rem;
                border-bottom: 1px solid #334155;
            }
            .nav-search-form {
                margin-left: 0;
                margin-top: 0.5rem;
            }
            .nav-search-form input {
                flex: 1;
                min-width: 0;
            }
            header {
                padding: 1rem 1.2rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .hero {
                padding: 1.5rem 1.2rem;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-stats {
                gap: 1rem;
            }
            .form-card {
                padding: 1.5rem 1.2rem;
            }
            .interview-block {
                padding: 1.5rem;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.6rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 0.5rem;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .badge {
            display: inline-block;
            background: #facc15;
            color: #1e293b;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            letter-spacing: 0.02em;
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        friend-link {
            display: block;
            margin: 1.2rem 0;
            padding: 0.8rem 1rem;
            background: #0f172a;
            border-radius: 12px;
            color: #e2e8f0;
            font-size: 0.9rem;
        }
        friend-link a {
            color: #93c5fd;
            margin: 0 0.3rem;
        }
        friend-link a:hover {
            color: #facc15;
        }