*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fc;
            color: #1e1e2a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #4a3fcf;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #2d1f9e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            border-radius: 24px;
            padding: 20px 28px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #0b0b1a;
            margin: 0.6em 0 0.4em;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #14142b;
            margin: 1.6em 0 0.6em;
            border-left: 6px solid #6c63ff;
            padding-left: 18px;
            line-height: 1.3;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1f1f3a;
            margin: 1.2em 0 0.5em;
            line-height: 1.3;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2d2d4a;
            margin: 0.8em 0 0.4em;
        }
        p {
            margin: 0 0 1.2em;
            font-size: 1rem;
            color: #2a2a3e;
        }
        strong {
            color: #0b0b1a;
            font-weight: 700;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3d3d5c;
            border-left: 4px solid #6c63ff;
            padding-left: 20px;
            margin: 0 0 1.8em;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #e8ecf5;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #0b0b1a;
            letter-spacing: -0.03em;
            background: linear-gradient(145deg, #4a3fcf, #7c74ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.65rem;
            font-weight: 400;
            -webkit-text-fill-color: #6a6a8a;
            color: #6a6a8a;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links {
            display: flex;
            gap: 6px 18px;
            list-style: none;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-links li a {
            font-weight: 500;
            color: #2a2a4a;
            padding: 6px 10px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-links li a:hover {
            background: #eef0f9;
            color: #4a3fcf;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #2a2a4a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef0f9;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: #6a6a8a;
            padding: 12px 0 4px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #b0b0ca;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #4a3fcf;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero-img {
            margin: 28px 0 24px;
            border-radius: 18px;
            overflow: hidden;
            background: #eef0f9;
            position: relative;
        }
        .hero-img img {
            width: 100%;
            min-height: 200px;
            object-fit: cover;
        }
        .hero-img figcaption {
            padding: 10px 18px;
            font-size: 0.85rem;
            color: #6a6a8a;
            background: #f8f9fe;
            font-style: italic;
        }
        .search-form {
            display: flex;
            gap: 8px;
            max-width: 480px;
            margin: 24px 0 16px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 160px;
            padding: 12px 18px;
            border: 2px solid #dde1ed;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            background: #fafbff;
        }
        .search-form input:focus {
            border-color: #6c63ff;
        }
        .search-form button {
            padding: 12px 28px;
            background: #4a3fcf;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #352bb5;
            transform: scale(1.02);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 28px;
            padding: 28px 24px;
            background: #f8f9fe;
            border-radius: 20px;
            border: 1px solid #e8ecf5;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 8px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border: 2px solid #dde1ed;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #6c63ff;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .btn {
            padding: 10px 24px;
            background: #4a3fcf;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card .btn:hover {
            background: #352bb5;
        }
        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #e0c50a;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #f5d742;
        }
        .rating-stars i.active {
            color: #f5c518;
        }
        .link-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            padding: 12px 0;
            list-style: none;
        }
        .link-group li a {
            background: #f0f2fa;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            display: inline-block;
        }
        .link-group li a:hover {
            background: #dde1f0;
            text-decoration: none;
        }
        friend-link {
            display: block;
            padding: 24px 0 12px;
            border-top: 2px solid #e8ecf5;
            margin-top: 40px;
        }
        friend-link h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: #1f1f3a;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            list-style: none;
        }
        friend-link ul li a {
            color: #4a3fcf;
            font-weight: 500;
        }
        friend-link ul li a:hover {
            text-decoration: underline;
        }
        .site-footer {
            padding: 28px 0 16px;
            text-align: center;
            color: #6a6a8a;
            font-size: 0.85rem;
            border-top: 2px solid #e8ecf5;
            margin-top: 20px;
        }
        .site-footer p {
            margin: 4px 0;
        }
        .site-footer .copyright {
            font-weight: 500;
            color: #3d3d5c;
        }
        @media (max-width: 820px) {
            .container {
                padding: 16px 16px 32px;
                border-radius: 16px;
                margin-top: 12px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 20px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 12px 0 16px;
                gap: 4px;
                border-top: 1px solid #e8ecf5;
                margin-top: 10px;
            }
            .nav-links li a {
                display: block;
                padding: 10px 16px;
                border-radius: 12px;
            }
            .hamburger {
                display: block;
            }
            #nav-toggle:checked~.nav-links {
                display: flex;
            }
            .search-form {
                max-width: 100%;
            }
            .search-form input {
                min-width: 120px;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .link-group {
                gap: 6px 10px;
            }
            .link-group li a {
                font-size: 0.8rem;
                padding: 3px 12px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 10px 24px;
                border-radius: 12px;
                margin-top: 8px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 12px;
                border-left-width: 4px;
            }
            .feedback-card input,
            .feedback-card textarea,
            .feedback-card select {
                font-size: 0.85rem;
                padding: 8px 12px;
            }
            .rating-stars {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo small {
                font-size: 0.55rem;
            }
        }
        .text-muted {
            color: #6a6a8a;
        }
        .mt-1 {
            margin-top: 0.8rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .gap-2 {
            gap: 12px;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #8a8aaa;
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 4px 0 16px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2em 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fafbff;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #e8ecf5;
        }
        th {
            background: #eef0f9;
            font-weight: 600;
            color: #14142b;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .blockquote {
            border-left: 4px solid #6c63ff;
            padding: 12px 20px;
            background: #f8f9fe;
            border-radius: 0 12px 12px 0;
            margin: 1.2em 0;
            font-style: italic;
            color: #3d3d5c;
        }