*,
        *::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, sans-serif;
            background: #f8f6f0;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #9b4b2e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c46a3f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 0.5rem;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 600;
            line-height: 1.3;
            color: #1e2a2f;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #9b4b2e;
            padding-left: 1rem;
            margin-top: 0.8rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #d9c8b2;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #2d4a4f;
        }
        h4 {
            font-size: 1.15rem;
            color: #3e5d63;
            font-weight: 500;
        }
        p {
            margin-bottom: 1rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2d4a4f;
            margin-bottom: 1.5rem;
        }
        .small-meta {
            font-size: 0.85rem;
            color: #6d7a7e;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            border-bottom: 2px solid #d9c8b2;
            position: relative;
            background: #f8f6f0;
            z-index: 10;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #1e2a2f;
            background: #e4d5c4;
            padding: 0.3rem 0.9rem;
            border-radius: 8px;
            text-decoration: none;
            transition: background 0.3s;
        }
        .my-logo:hover {
            background: #d4c0aa;
            text-decoration: none;
        }
        .my-logo span {
            color: #9b4b2e;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1e2a2f;
            padding: 0.2rem 0.5rem;
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 1.2rem;
        }
        .main-nav a {
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: #9b4b2e;
            text-decoration: none;
        }
        .main-nav .active {
            border-bottom-color: #9b4b2e;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #6d7a7e;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #b8a898;
        }
        .breadcrumb a {
            color: #6d7a7e;
        }
        .breadcrumb a:hover {
            color: #9b4b2e;
        }
        .hero-img {
            margin: 1.5rem 0 1rem;
            border-radius: 16px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-box {
            background: #f0ece4;
            border-radius: 16px;
            padding: 1.8rem 1.8rem 1.2rem;
            margin: 2rem 0;
            border-left: 5px solid #9b4b2e;
        }
        .feature-box h3 {
            margin-top: 0;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 1.5rem 0;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin: 1.2rem 0 1.8rem;
            background: #f0ece4;
            padding: 1.2rem 1.5rem;
            border-radius: 40px;
            align-items: center;
        }
        .search-form i {
            font-size: 1.2rem;
            color: #9b4b2e;
        }
        .search-form input[type="text"] {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.6rem 0;
            font-size: 1rem;
            outline: none;
            min-width: 120px;
        }
        .search-form button {
            background: #9b4b2e;
            color: #fff;
            border: none;
            padding: 0.5rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-form button:hover {
            background: #7c3b24;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .card-form {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 2rem 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e4d5c4;
        }
        .card-form h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .card-form textarea,
        .card-form input,
        .card-form select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d9c8b2;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #faf8f4;
            margin-bottom: 0.8rem;
            transition: border 0.2s;
        }
        .card-form textarea:focus,
        .card-form input:focus,
        .card-form select:focus {
            border-color: #9b4b2e;
            outline: none;
            background: #fff;
        }
        .card-form textarea {
            min-height: 90px;
            resize: vertical;
        }
        .card-form .btn-submit {
            background: #9b4b2e;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            font-size: 1rem;
        }
        .card-form .btn-submit:hover {
            background: #7c3b24;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d9c8b2;
            cursor: pointer;
            margin-bottom: 0.6rem;
        }
        .star-rating .star {
            transition: color 0.15s;
        }
        .star-rating .star.active {
            color: #e8a838;
        }
        .star-rating .star:hover {
            color: #e8a838;
        }
        .site-footer {
            border-top: 2px solid #d9c8b2;
            padding: 2rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        friend-link {
            display: block;
            background: #f0ece4;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            margin-bottom: 1.5rem;
            font-weight: 500;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
        }
        .copyright {
            font-size: 0.9rem;
            color: #6d7a7e;
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid #e4d5c4;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 0.5rem 0.3rem;
                border-bottom: 1px solid #e4d5c4;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .site-header {
                padding: 0.6rem 0;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-form {
                border-radius: 24px;
                padding: 0.8rem 1.2rem;
            }
            .card-form {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 0;
            }
            .feature-box {
                padding: 1.2rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        img.with-border {
            border: 2px solid #e4d5c4;
        }
        .last-updated {
            display: inline-block;
            background: #e4d5c4;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #2d4a4f;
            margin-bottom: 1rem;
        }
        .toc {
            background: #f0ece4;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
            border: 1px solid #d9c8b2;
        }
        .toc ol {
            padding-left: 1.5rem;
            columns: 2;
            column-gap: 2rem;
        }
        .toc ol li {
            margin-bottom: 0.3rem;
        }
        @media (max-width: 600px) {
            .toc ol {
                columns: 1;
            }
        }
        .schema-hidden {
            display: none;
        }