*,
        *::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, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f5ff;
            color: #1e1a2b;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #6b3fa0;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus-visible {
            color: #3f1d6b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #1a0a2e;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #2d1b4e;
            margin-top: 3rem;
            margin-bottom: 1rem;
            border-left: 6px solid #9b6dff;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #3f2766;
            margin-top: 2.2rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #4f3575;
            margin-top: 1.6rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2d1b4e;
            background: #ede6ff;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            border-left: 6px solid #7c4dcc;
        }
        .small-meta {
            font-size: 0.85rem;
            color: #6f5d8a;
        }
        .site-header {
            background: linear-gradient(135deg, #1a0a2e 0%, #2d1b4e 100%);
            color: #fff;
            padding: 0 0 0 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
            padding: 0.8rem 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #d4b4ff, #f0e4ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(155, 109, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #c7a4ff;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-list {
            display: flex;
            gap: 1.2rem;
            list-style: none;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-list a {
            color: #e4d9ff;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-list a:hover,
        .nav-list a:focus-visible {
            border-bottom-color: #b081ff;
            color: #fff;
            text-decoration: none;
        }
        .nav-list .active a {
            border-bottom-color: #b081ff;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb-wrapper {
            background: #ede6ff;
            padding: 0.6rem 20px;
            border-bottom: 1px solid #d9caff;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            list-style: none;
            font-size: 0.9rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #8a75b0;
        }
        .breadcrumb a {
            color: #5a3d82;
        }
        .breadcrumb .current {
            color: #2d1b4e;
            font-weight: 600;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        .side-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.4rem 1.6rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.6rem;
            border: 1px solid #ede6ff;
        }
        .side-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border-left: 4px solid #9b6dff;
            padding-left: 0.8rem;
        }
        .side-links {
            list-style: none;
        }
        .side-links li {
            margin-bottom: 0.5rem;
        }
        .side-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0.3rem 0;
            font-size: 0.95rem;
        }
        .side-links a i {
            width: 18px;
            color: #7c4dcc;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 16px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }
        .feature-image figcaption {
            font-size: 0.85rem;
            color: #6f5d8a;
            text-align: center;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .form-module {
            background: #fff;
            border-radius: 16px;
            padding: 1.6rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #ede6ff;
            margin-top: 2.5rem;
        }
        .form-module h3 {
            margin-top: 0;
            border-left: 4px solid #9b6dff;
            padding-left: 0.8rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2d1b4e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0d6f2;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            background: #fafaff;
            transition: border-color 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #9b6dff;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .btn {
            background: linear-gradient(135deg, #7c4dcc, #5a2d9e);
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(90, 45, 158, 0.35);
        }
        .btn-secondary {
            background: #ede6ff;
            color: #2d1b4e;
        }
        .btn-secondary:hover {
            background: #d9caff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
            font-size: 1.8rem;
            color: #ddd;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #d4c4e6;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            background: #1a0a2e;
            color: #c7b8e6;
            padding: 2.5rem 20px 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #e4d9ff;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border-left: 3px solid #9b6dff;
            padding-left: 0.6rem;
        }
        .footer-inner a {
            color: #c7b8e6;
        }
        .footer-inner a:hover {
            color: #fff;
        }
        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 #3f2766;
            margin-top: 2rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            color: #8a75b0;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .content-body {
                order: 1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 720px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2d1b4e;
                padding: 1rem 0 1.4rem;
                border-radius: 0 0 16px 16px;
                gap: 0.4rem;
            }
            .nav-list li {
                width: 100%;
                text-align: center;
            }
            .nav-list a {
                display: block;
                padding: 0.6rem 1rem;
                border-bottom: none;
            }
            .nav-list a:hover {
                background: #3f2766;
                border-bottom: none;
            }
            .nav-toggle:checked~.nav-list {
                display: flex;
            }
            .header-inner {
                position: relative;
            }
            .nav-toggle {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .form-module {
                padding: 1.2rem 1.2rem;
            }
            .my-logo {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .header-inner {
                padding: 0.6rem 12px;
            }
            .breadcrumb-wrapper {
                padding: 0.4rem 12px;
            }
            .lead {
                padding: 1rem 1.2rem;
                font-size: 1.05rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .text-gradient {
            background: linear-gradient(135deg, #7c4dcc, #b081ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .badge {
            display: inline-block;
            background: #ede6ff;
            color: #3f2766;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .highlight-box {
            background: #f3edff;
            border-left: 6px solid #9b6dff;
            padding: 1.4rem 1.8rem;
            border-radius: 12px;
            margin: 1.6rem 0;
        }
        .emoji-big {
            font-size: 1.4em;
            margin-right: 0.2em;
        }