*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.7;
            color: #1e2a3a;
            background: #faf8f5;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d3e52;
            text-decoration: underline;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: #0f2a3b;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
        }
        h2 {
            font-size: 2.0rem;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            border-left: 6px solid #c0392b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
            color: #1f4a5c;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            color: #2b5f6e;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c3e4e;
        }
        ul,
        ol {
            margin: 0.6rem 0 1.4rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            width: 100%;
            padding: 0 0.5rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.6rem 0;
            border-bottom: 2px solid #e0d6cc;
            position: relative;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b7322a;
            letter-spacing: -0.03em;
            text-transform: uppercase;
            background: linear-gradient(145deg, #b7322a, #8a2a1f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            text-decoration: none;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.88;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            color: #5f5a55;
            -webkit-text-fill-color: #5f5a55;
            background: none;
            margin-left: 0.4rem;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            padding: 0.5rem 0.9rem;
            font-weight: 600;
            color: #1e3b4a;
            border-radius: 40px;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
        }
        .nav-bar a:hover {
            background: #dacfc4;
            color: #0f1f2a;
            text-decoration: none;
        }
        .nav-bar a.active {
            background: #b7322a;
            color: #fefcf9;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #1e2a3a;
            padding: 0.2rem 0.5rem;
            user-select: none;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem 0;
            font-size: 0.9rem;
            color: #6b6b6b;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #a99e93;
        }
        .breadcrumb a {
            color: #1a6b8a;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #3a3a3a;
            font-weight: 600;
        }
        .search-block {
            background: #efeae4;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            margin: 2rem 0 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }
        .search-block label {
            font-weight: 700;
            font-size: 1.1rem;
            color: #1f3e4a;
        }
        .search-block input[type="text"] {
            flex: 1 1 260px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #cdc0b4;
            border-radius: 50px;
            font-size: 1rem;
            background: #fffdfa;
            outline: none;
            transition: border 0.25s;
        }
        .search-block input[type="text"]:focus {
            border-color: #b7322a;
        }
        .search-block button {
            background: #b7322a;
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-block button:hover {
            background: #8f2a1f;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #ffffffec;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
            border: 1px solid #e7ddd4;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card label {
            font-weight: 600;
            display: block;
            margin: 0.8rem 0 0.3rem 0;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d5c9be;
            border-radius: 12px;
            font-size: 0.95rem;
            background: #fffdfa;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #b7322a;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: #1f6a7a;
            color: white;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            margin-top: 0.8rem;
            transition: background 0.2s, transform 0.1s;
            display: inline-block;
        }
        .feedback-card .btn-submit:hover {
            background: #124a57;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin: 0.4rem 0 0.6rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #d5c9be;
            cursor: pointer;
            transition: color 0.15s;
            padding: 0 0.1rem;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5b342;
        }
        .feature-image {
            margin: 2.2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            background: #e8e0d8;
            text-align: center;
        }
        .feature-image figcaption {
            padding: 0.8rem 1rem;
            font-style: italic;
            color: #4f4a45;
            background: #f6f1ec;
            font-size: 0.95rem;
        }
        friend-link {
            display: block;
            background: #ece6df;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            margin: 2.5rem 0 1.2rem 0;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: #1f2e3a;
        }
        friend-link ul {
            list-style: none;
            margin: 0.8rem 0 0 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.6rem;
        }
        friend-link li {
            margin-bottom: 0.2rem;
        }
        friend-link a {
            font-weight: 600;
            color: #1a5f6e;
        }
        friend-link a:hover {
            color: #b7322a;
        }
        .site-footer {
            border-top: 2px solid #e0d6cc;
            padding: 2rem 0 2.5rem 0;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.95rem;
            color: #4f4a45;
        }
        .site-footer .copyright {
            font-weight: 600;
            margin-top: 0.6rem;
            font-size: 0.9rem;
            color: #2f3d46;
        }
        @media (max-width: 820px) {
            h1 {
                font-size: 2.0rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-block {
                flex-direction: column;
                padding: 1.4rem;
            }
            .search-block input[type="text"] {
                width: 100%;
                flex: 1 1 auto;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #f5f0ea;
                padding: 1rem 0.6rem;
                border-radius: 16px;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .nav-bar a {
                padding: 0.7rem 1.2rem;
                width: 100%;
                border-radius: 10px;
            }
            .hamburger {
                display: inline-block;
            }
            #nav-toggle:checked~.nav-bar {
                display: flex;
            }
            .site-header {
                align-items: center;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .my-logo {
                font-size: 1.7rem;
            }
            .my-logo small {
                font-size: 0.7rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.6rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.3rem;
                padding-left: 0.6rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .star-rating label {
                font-size: 1.6rem;
            }
            .search-block button {
                width: 100%;
            }
        }
        .badge {
            display: inline-block;
            background: #c0392b;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.15rem 0.7rem;
            border-radius: 40px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .highlight {
            background: #fcf2e7;
            padding: 0.1rem 0.3rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .flex-quote {
            border-left: 4px solid #b7322a;
            padding: 1rem 1.4rem;
            background: #f6f0ea;
            border-radius: 0 16px 16px 0;
            margin: 1.2rem 0;
            font-style: italic;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #6f6a65;
            text-align: right;
            margin-top: 0.2rem;
            border-top: 1px dashed #d5c9be;
            padding-top: 0.6rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fffcf9;
            border-radius: 12px;
            overflow: hidden;
            font-size: 0.95rem;
        }
        th {
            background: #1f4a5c;
            color: #fefcf9;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 700;
        }
        td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e7ddd4;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .toc {
            background: #f4efe9;
            padding: 1.4rem 2rem;
            border-radius: 20px;
            margin: 1.4rem 0 2rem 0;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ol {
            columns: 2 280px;
            column-gap: 2rem;
            margin: 0.6rem 0 0 1.2rem;
        }
        .toc li {
            break-inside: avoid;
            margin-bottom: 0.3rem;
        }
        .toc a {
            font-weight: 500;
        }