* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f8f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 28px;
            padding: 24px 28px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eef2f7;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #6a4c93, #1e2a3a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #6a4c93;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 40px;
            transition: background 0.25s, color 0.25s;
        }
        .main-nav a:hover {
            background: #6a4c93;
            color: #fff;
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e2a3a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f7;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            padding: 14px 0 10px;
            font-size: 0.85rem;
            color: #5a6a7a;
        }
        .breadcrumb a {
            color: #6a4c93;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #8a9aa8;
        }
        .breadcrumb .sep {
            color: #c0ccd8;
        }
        .content-area {
            padding: 20px 0 10px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 12px;
            color: #0f1a2e;
            letter-spacing: -0.3px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #eef2f7;
            color: #1a2a3a;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #3d4f60;
        }
        p {
            margin: 0 0 18px;
            font-size: 1.05rem;
            color: #2c3e50;
        }
        .lead {
            font-size: 1.2rem;
            color: #3d4f60;
            font-weight: 400;
            border-left: 4px solid #6a4c93;
            padding-left: 20px;
            margin: 0 0 28px;
        }
        .highlight-box {
            background: #f4f0fa;
            padding: 24px 28px;
            border-radius: 20px;
            margin: 28px 0;
            border-left: 6px solid #6a4c93;
        }
        .highlight-box strong {
            color: #6a4c93;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 18px;
            margin: 24px 0 32px;
        }
        .stat-card {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 20px 16px;
            text-align: center;
            border: 1px solid #e8ecf2;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(106, 76, 147, 0.10);
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #6a4c93;
            display: block;
        }
        .stat-card .label {
            font-size: 0.95rem;
            color: #5a6a7a;
            margin-top: 4px;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 20px;
            margin: 24px 0 28px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            display: block;
        }
        .feature-img-wrap {
            text-align: center;
        }
        .feature-img-wrap figcaption {
            font-size: 0.85rem;
            color: #7a8a9a;
            margin-top: 6px;
        }
        .inline-link {
            color: #6a4c93;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s;
        }
        .inline-link:hover {
            border-bottom-color: #6a4c93;
        }
        .interview-card {
            background: #f8f9fc;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 24px 0;
            border: 1px solid #e8ecf2;
        }
        .interview-card .quote {
            font-style: italic;
            font-size: 1.1rem;
            color: #2c3e50;
            border-left: 3px solid #6a4c93;
            padding-left: 18px;
            margin: 12px 0;
        }
        .interview-card .attribution {
            font-weight: 600;
            color: #6a4c93;
            margin-top: 8px;
        }
        .tip-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 24px;
        }
        .tip-list li {
            padding: 10px 0 10px 28px;
            position: relative;
            font-size: 1.02rem;
            border-bottom: 1px solid #eef2f7;
        }
        .tip-list li::before {
            content: "⚡";
            position: absolute;
            left: 0;
            top: 10px;
            font-size: 1.1rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 12px;
            margin: 20px 0 30px;
            padding: 0;
            list-style: none;
        }
        .link-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: #f4f0fa;
            border-radius: 12px;
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.2s, transform 0.15s;
        }
        .link-list li a:hover {
            background: #6a4c93;
            color: #fff;
            transform: translateX(4px);
        }
        .link-list li a i {
            color: #6a4c93;
            transition: color 0.2s;
        }
        .link-list li a:hover i {
            color: #fff;
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 48px 0 32px;
            padding: 28px 0;
            border-top: 2px solid #eef2f7;
            border-bottom: 2px solid #eef2f7;
        }
        .interaction-card {
            background: #f8f9fc;
            border-radius: 20px;
            padding: 24px 24px 28px;
            border: 1px solid #e8ecf2;
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 12px;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d0dae6;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            outline: none;
            border-color: #6a4c93;
            box-shadow: 0 0 0 3px rgba(106, 76, 147, 0.12);
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card .btn {
            padding: 12px 24px;
            background: #6a4c93;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .interaction-card .btn:hover {
            background: #523a75;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #d0dae6;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            margin-top: 40px;
            padding: 28px 0 16px;
            border-top: 2px solid #eef2f7;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
        }
        friend-link {
            display: block;
            font-style: normal;
        }
        friend-link a {
            color: #6a4c93;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .footer-copyright {
            text-align: center;
            font-size: 0.9rem;
            color: #7a8a9a;
            padding-top: 20px;
            margin-top: 16px;
            border-top: 1px solid #eef2f7;
            width: 100%;
        }
        .last-updated {
            display: inline-block;
            background: #f4f0fa;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #5a6a7a;
            margin-bottom: 12px;
        }
        @media (max-width: 820px) {
            .container {
                padding: 16px 18px 30px;
                border-radius: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .interaction-section {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                padding: 16px 0 8px;
                border-top: 1px solid #eef2f7;
                margin-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 18px;
                border-radius: 12px;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                flex-wrap: wrap;
                width: 100%;
                justify-content: space-between;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 12px 12px 24px;
                border-radius: 16px;
                margin-top: 10px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-card .num {
                font-size: 1.6rem;
            }
            .highlight-box {
                padding: 16px 18px;
            }
            .interview-card {
                padding: 16px 18px;
            }
            .interaction-card {
                padding: 16px 14px;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 6px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        ::selection {
            background: #6a4c93;
            color: #fff;
        }