*,
        *::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, Roboto, 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: #1e293b;
            background-color: #f8fafc;
            padding: 0 1rem;
            max-width: 1200px;
            margin: 0 auto;
            min-height: 100vh;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1e40af;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0f172a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
            border-bottom: 4px solid #2563eb;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #2563eb;
            padding-left: 0.8rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.15rem;
            color: #334155;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            color: #334155;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
            color: #334155;
        }
        li {
            margin-bottom: 0.4rem;
        }
        strong {
            color: #0f172a;
            font-weight: 700;
        }
        .container {
            background: #ffffff;
            border-radius: 24px;
            padding: 1.8rem 2rem 2.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
            margin: 1.2rem 0 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.6rem;
            border-bottom: 2px solid #e2e8f0;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #2563eb, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.6rem;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-list li a {
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .nav-list li a:hover {
            border-bottom-color: #2563eb;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0f172a;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            width: 100%;
            margin-top: 0.6rem;
            font-size: 0.9rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0.4rem 0;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb span {
            color: #94a3b8;
        }
        .search-section {
            margin: 1.8rem 0 1.2rem;
            display: flex;
            justify-content: center;
        }
        .search-form {
            display: flex;
            width: 100%;
            max-width: 580px;
            border-radius: 60px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
            background: #fff;
            transition: box-shadow 0.3s;
        }
        .search-form:focus-within {
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.15);
            border-color: #2563eb;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.8rem 1.4rem;
            font-size: 1rem;
            outline: none;
            background: transparent;
            color: #1e293b;
        }
        .search-form input::placeholder {
            color: #94a3b8;
        }
        .search-form button {
            background: #2563eb;
            border: none;
            color: white;
            padding: 0.8rem 1.6rem;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .search-form button:hover {
            background: #1e40af;
        }
        .hero-img-wrap {
            margin: 2rem 0 1.8rem;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            background: #eef2ff;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .hero-img-caption {
            padding: 0.8rem 1.2rem;
            background: #f1f5f9;
            font-size: 0.9rem;
            color: #475569;
            text-align: center;
            font-style: italic;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr 300px;
            }
            .content-grid .main-content {
                grid-column: 1;
            }
            .content-grid .side-content {
                grid-column: 2;
            }
        }
        .side-content {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 1.6rem 1.4rem;
            height: fit-content;
            position: sticky;
            top: 1.5rem;
        }
        .side-content h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #cbd5e1;
            padding-bottom: 0.5rem;
        }
        .side-content ul {
            list-style: none;
            margin: 0.8rem 0 0;
            padding: 0;
        }
        .side-content ul li {
            padding: 0.4rem 0;
            border-bottom: 1px dashed #cbd5e1;
        }
        .side-content ul li a {
            font-weight: 500;
        }
        .feedback-section {
            margin: 2.8rem 0 1.5rem;
            padding-top: 1.8rem;
            border-top: 3px solid #e2e8f0;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr 1fr;
            }
        }
        .feedback-card {
            background: #f8fafc;
            border-radius: 18px;
            padding: 1.6rem 1.8rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s;
            width: 100%;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #2563eb;
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .feedback-card .star-rating input {
            display: none;
        }
        .feedback-card .star-rating label {
            font-size: 1.7rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.2s;
        }
        .feedback-card .star-rating input:checked~label,
        .feedback-card .star-rating label:hover,
        .feedback-card .star-rating label:hover~label {
            color: #f59e0b;
        }
        .feedback-card .btn-submit {
            background: #2563eb;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #1e40af;
            transform: translateY(-1px);
        }
        .site-footer {
            margin: 3rem 0 1.5rem;
            padding: 2rem 0 1.2rem;
            border-top: 2px solid #e2e8f0;
            text-align: center;
        }
        .site-footer friend-link {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.2rem 2rem;
            padding: 1rem 0;
            font-size: 0.95rem;
        }
        .site-footer friend-link a {
            color: #2563eb;
            font-weight: 500;
        }
        .site-footer .copyright {
            margin-top: 1.2rem;
            color: #64748b;
            font-size: 0.9rem;
            border-top: 1px solid #eef2f6;
            padding-top: 1.2rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.4rem;
                padding: 0.8rem 0 0.4rem;
                background: #ffffff;
                border-radius: 0 0 16px 16px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 0.5rem 0.4rem;
                border-bottom: 1px solid #f1f5f9;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                gap: 0.6rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .search-form input {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
            }
            .search-form button {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            .side-content {
                position: static;
                margin-top: 1.5rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .hero-img-wrap img {
                max-height: 240px;
            }
            .site-footer friend-link {
                flex-direction: column;
                gap: 0.6rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .container {
                padding: 0.8rem 0.7rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        .text-small {
            font-size: 0.9rem;
            color: #64748b;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .badge {
            display: inline-block;
            background: #dbeafe;
            color: #1e40af;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 0.6rem 0.8rem;
            border: 1px solid #e2e8f0;
            text-align: left;
        }
        table th {
            background: #f1f5f9;
            font-weight: 600;
        }
        table tr:nth-child(even) {
            background: #fafbfc;
        }
        .last-updated {
            display: inline-block;
            margin-top: 1rem;
            padding: 0.3rem 1.2rem;
            background: #eef2ff;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #4338ca;
            font-weight: 500;
        }
        .feature-box {
            background: #f0fdf4;
            border-left: 5px solid #22c55e;
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .feature-box.warn {
            background: #fef9c3;
            border-left-color: #eab308;
        }
        .feature-box.info {
            background: #eef2ff;
            border-left-color: #6366f1;
        }
        .emoji-lg {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .inline-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.4rem;
            padding: 0.6rem 0;
        }
        .inline-link-list a {
            font-weight: 500;
        }
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .gallery-grid img {
            border-radius: 12px;
            height: 120px;
            width: 100%;
            object-fit: cover;
        }