*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1e40af;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0f172a;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2.0rem;
            font-weight: 700;
            color: #0f172a;
            margin-top: 3rem;
            margin-bottom: 1rem;
            border-bottom: 4px solid #3b82f6;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1e293b;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #334155;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #facc15;
            letter-spacing: -0.02em;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            color: #fde047;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2rem;
            color: #3b82f6;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 1.2rem;
            align-items: center;
        }
        .nav-list li a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #facc15;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.6rem;
            color: #fff;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .nav-mobile {
            display: none;
            width: 100%;
            margin-top: 0.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 0.8rem;
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile .nav-list {
            flex-direction: column;
            gap: 0.4rem;
            align-items: stretch;
        }
        .nav-mobile .nav-list li a {
            display: block;
            padding: 0.6rem 0.8rem;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            color: #475569;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb a:hover {
            color: #1e40af;
        }
        .breadcrumb span {
            color: #64748b;
        }
        .hero {
            background: linear-gradient(145deg, #dbeafe 0%, #eff6ff 100%);
            padding: 3rem 0 2.5rem;
            border-radius: 0 0 3rem 3rem;
            margin-bottom: 2rem;
        }
        .hero-content {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
        }
        .hero-text {
            flex: 2 1 380px;
        }
        .hero-image {
            flex: 1 1 280px;
        }
        .hero-image img {
            border-radius: 1.5rem;
            box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.25);
            width: 100%;
        }
        .hero .meta-info {
            font-size: 0.9rem;
            color: #64748b;
            margin-top: 0.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
        }
        .hero .meta-info i {
            margin-right: 0.3rem;
        }
        .content-section {
            padding: 1.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .highlight-box {
            background: #f1f5f9;
            border-left: 5px solid #3b82f6;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box.info {
            border-left-color: #f59e0b;
            background: #fffbeb;
        }
        .highlight-box.tip {
            border-left-color: #10b981;
            background: #ecfdf5;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1.2rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.2rem 1rem;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #2563eb;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            margin-top: 0.2rem;
        }
        .interview-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
            margin: 1.5rem 0;
        }
        .interview-card .interviewer {
            font-weight: 600;
            color: #0f172a;
        }
        .interview-card .quote {
            font-style: italic;
            color: #334155;
            border-left: 3px solid #3b82f6;
            padding-left: 1rem;
            margin: 0.8rem 0;
        }
        .widget {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
            margin-bottom: 1.5rem;
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.5rem;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .link-list li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .link-list li a i {
            color: #3b82f6;
            width: 1.2rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #0f172a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #3b82f6;
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: #2563eb;
            color: #fff;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #1e40af;
            transform: translateY(-2px);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: #475569;
        }
        .btn-secondary:hover {
            background: #334155;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars i.active {
            color: #f59e0b;
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: #fbbf24;
        }
        .comment-item {
            background: #f8fafc;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            margin-bottom: 0.8rem;
            border: 1px solid #e2e8f0;
        }
        .comment-item .comment-author {
            font-weight: 600;
            color: #0f172a;
        }
        .comment-item .comment-date {
            font-size: 0.8rem;
            color: #94a3b8;
        }
        .comment-item .comment-text {
            margin-top: 0.4rem;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .footer-grid h4 {
            color: #f1f5f9;
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .footer-grid a {
            color: #94a3b8;
        }
        .footer-grid a:hover {
            color: #facc15;
        }
        .friend-link {
            display: block;
            padding: 0.3rem 0;
            color: #94a3b8;
        }
        .friend-link:hover {
            color: #facc15;
        }
        .copyright {
            border-top: 1px solid #1e293b;
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile {
                display: none;
            }
            .nav-mobile.active {
                display: block;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                position: static;
            }
            .hero-content {
                flex-direction: column-reverse;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
        }
        .text-muted {
            color: #64748b;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .items-center {
            align-items: center;
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }