* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #fafafa;
            color: #1e1e2a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            color: #1a1a2e;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 0.6rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.2rem 0 0.9rem;
            border-left: 6px solid #c0392b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.6rem;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem;
            color: #34495e;
        }
        p {
            margin-bottom: 1.1rem;
        }
        ul,
        ol {
            margin: 0 0 1.2rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        strong {
            color: #c0392b;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            transition: 0.3s;
        }
        .my-logo:hover {
            background: rgba(255, 255, 255, 0.18);
            text-decoration: none;
            color: #f1c40f;
        }
        .my-logo span {
            color: #f1c40f;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            gap: 0.8rem;
            list-style: none;
            margin: 0;
        }
        .main-nav li a {
            color: #f0f0f0;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.06);
            transition: 0.3s;
            display: block;
        }
        .main-nav li a:hover {
            background: #c0392b;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #fff;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .breadcrumb {
            background: #f0ede6;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #999;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #c0392b;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #f9f3ea 0%, #fef9f2 100%);
            padding: 2.5rem 0 2rem;
            border-bottom: 3px solid #e74c3c;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            color: #1a1a2e;
        }
        .hero .tagline {
            font-size: 1.2rem;
            color: #555;
            max-width: 780px;
            margin: 1rem auto 0;
        }
        .hero .meta-info {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            margin-top: 1.2rem;
            font-size: 0.95rem;
            color: #777;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
            color: #c0392b;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            background: #f5f1eb;
            padding: 1.8rem 1.5rem;
            border-radius: 20px;
            border: 1px solid #e0d9d0;
            height: fit-content;
            position: sticky;
            top: 110px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            border-bottom: 2px solid #c0392b;
            padding-bottom: 0.5rem;
            margin-top: 0;
        }
        .sidebar ul {
            list-style: none;
            margin: 0;
        }
        .sidebar ul li {
            margin-bottom: 0.5rem;
        }
        .sidebar ul li a {
            display: block;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            background: #fff;
            border-left: 3px solid transparent;
            transition: 0.2s;
            font-weight: 500;
        }
        .sidebar ul li a:hover {
            border-left-color: #c0392b;
            background: #fff5f0;
            text-decoration: none;
        }
        .img-card {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            background: #fff;
        }
        .img-card img {
            width: 100%;
            height: auto;
            display: block;
        }
        .img-card .caption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #666;
            background: #fcf9f6;
            border-top: 1px solid #eee;
        }
        .form-section {
            background: #fff;
            border: 1px solid #e0ddd5;
            border-radius: 20px;
            padding: 2rem 2rem 2.2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .form-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: 0.25s;
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #c0392b;
            outline: none;
            background: #fff;
            box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.12);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn:hover {
            background: #a93226;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(192, 57, 43, 0.3);
        }
        .btn-secondary {
            background: #2c3e50;
        }
        .btn-secondary:hover {
            background: #1a2a3a;
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ccc;
            transition: 0.2s;
        }
        .rating-stars .star {
            transition: 0.2s;
        }
        .rating-stars .star.active,
        .rating-stars .star:hover {
            color: #f1c40f;
        }
        .rating-stars .star:hover~.star {
            color: #ccc;
        }
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #f1c40f;
            margin-bottom: 0.8rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 0.4rem;
        }
        .footer-inner a {
            color: #bbb;
        }
        .footer-inner a:hover {
            color: #f1c40f;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.3rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.2rem;
            margin-top: 1.8rem;
            text-align: center;
            font-size: 0.9rem;
            color: #999;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: -1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 700px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.4rem;
                padding: 1rem 0 0.5rem;
            }
            .main-nav.show {
                display: flex;
            }
            .main-nav li a {
                background: rgba(255, 255, 255, 0.07);
                text-align: center;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .form-section {
                padding: 1.2rem;
            }
            .container {
                padding: 0 14px;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }
        @media (max-width: 480px) {
            body {
                font-size: 15px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        .feature-badge {
            background: #c0392b;
            color: #fff;
            display: inline-block;
            padding: 0.15rem 1rem;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        th {
            background: #1a1a2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 6px solid #f1c40f;
            padding: 1.2rem 1.8rem;
            border-radius: 12px;
            margin: 1.8rem 0;
        }
        .highlight-box strong {
            color: #a93226;
        }
        .interview-box {
            background: #f0f4f8;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            border: 1px solid #dce4ec;
        }
        .interview-box .quote {
            font-style: italic;
            font-size: 1.05rem;
            color: #2c3e50;
        }
        .interview-box .attribution {
            margin-top: 0.8rem;
            font-weight: 700;
            color: #c0392b;
        }
        .toc {
            background: #fff;
            border-radius: 16px;
            padding: 1.2rem 1.8rem;
            border: 1px solid #e5ddd5;
            margin-bottom: 2rem;
        }
        .toc ol {
            margin: 0.4rem 0 0 1.2rem;
        }
        .toc ol li a {
            color: #2c3e50;
        }
        .toc ol li a:hover {
            color: #c0392b;
        }