*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f9f7f4;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #b33a2a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #7f2a1e;
            text-decoration: underline;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: #0d1b2a;
        }
        h1 {
            font-size: 2.4rem;
            margin: 1.2rem 0 0.8rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.4rem 0 1rem;
            border-bottom: 3px solid #b33a2a;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.6rem;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.2rem 1.8rem 2.5rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
            margin: 1rem 0 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0 0.4rem;
            border-bottom: 1px solid #e6ddd4;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #0d1b2a;
            letter-spacing: -0.02em;
            background: linear-gradient(145deg, #b33a2a, #7f2a1e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #5f5f5f;
            color: #5f5f5f;
            display: block;
            letter-spacing: 0.2px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .nav-list {
            display: flex;
            gap: 1.2rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-list a {
            font-weight: 500;
            color: #1e1e1e;
            font-size: 0.95rem;
            padding: 0.3rem 0.1rem;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-list a:hover {
            border-bottom-color: #b33a2a;
            text-decoration: none;
            color: #b33a2a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e1e1e;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            list-style: none;
            padding: 0.6rem 0 0.2rem;
            font-size: 0.85rem;
            color: #6b6b6b;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #b33a2a;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #6b6b6b;
        }
        .breadcrumb a:hover {
            color: #b33a2a;
        }
        .breadcrumb .current {
            color: #1e1e1e;
            font-weight: 500;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            max-width: 520px;
            margin: 1.2rem 0 1.8rem;
        }
        .search-form input {
            flex: 1;
            min-width: 160px;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd6ce;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #f9f7f4;
            transition: 0.25s;
        }
        .search-form input:focus {
            outline: none;
            border-color: #b33a2a;
            background: #fff;
        }
        .search-form button {
            background: #b33a2a;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #7f2a1e;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.2rem;
            margin: 2rem 0 1.5rem;
            background: #f4f1ed;
            padding: 1.5rem 1.8rem;
            border-radius: 16px;
        }
        .feedback-grid form {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .feedback-grid label {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feedback-grid input,
        .feedback-grid textarea,
        .feedback-grid select {
            padding: 0.6rem 0.9rem;
            border: 2px solid #ddd6ce;
            border-radius: 8px;
            font-size: 0.9rem;
            background: #fff;
            transition: 0.2s;
        }
        .feedback-grid input:focus,
        .feedback-grid textarea:focus,
        .feedback-grid select:focus {
            border-color: #b33a2a;
            outline: none;
        }
        .feedback-grid textarea {
            resize: vertical;
            min-height: 60px;
        }
        .feedback-grid .btn {
            background: #0d1b2a;
            color: #fff;
            border: none;
            padding: 0.6rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            align-self: flex-start;
        }
        .feedback-grid .btn:hover {
            background: #b33a2a;
            transform: scale(1.02);
        }
        .feature-img {
            margin: 1.8rem 0 1.2rem;
            border-radius: 14px;
            background: #f0ebe6;
            padding: 0.6rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .feature-img figcaption {
            font-size: 0.8rem;
            color: #5f5f5f;
            padding: 0.4rem 0.2rem 0;
            font-style: italic;
        }
        .highlight-box {
            background: #f4efe9;
            border-left: 6px solid #b33a2a;
            padding: 1rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0 1.8rem;
            font-size: 0.9rem;
        }
        .stats-table th {
            background: #0d1b2a;
            color: #fff;
            padding: 0.6rem 0.8rem;
            text-align: left;
        }
        .stats-table td {
            padding: 0.5rem 0.8rem;
            border-bottom: 1px solid #e6ddd4;
        }
        .stats-table tr:nth-child(even) {
            background: #f9f7f4;
        }
        .stats-table tr:hover {
            background: #efe8e1;
        }
        friend-link {
            display: block;
            padding: 1.6rem 0 0.8rem;
            border-top: 1px solid #e6ddd4;
            margin-top: 2rem;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.6rem;
            list-style: none;
            padding: 0.6rem 0 0;
        }
        friend-link ul li a {
            color: #3a3a3a;
            font-weight: 500;
            font-size: 0.9rem;
            background: #f4f1ed;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            transition: 0.2s;
            display: inline-block;
        }
        friend-link ul li a:hover {
            background: #b33a2a;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            padding: 1.2rem 0 0.8rem;
            text-align: center;
            font-size: 0.85rem;
            color: #5f5f5f;
            border-top: 1px solid #e6ddd4;
            margin-top: 1rem;
        }
        .site-footer .copyright {
            font-weight: 400;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.4rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.8rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .site-header {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.3rem;
                padding: 0.8rem 0 0.4rem;
            }
            .nav-list a {
                display: block;
                padding: 0.4rem 0;
                border-bottom: 1px solid #eee;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
                padding: 1rem;
            }
            .stats-table {
                font-size: 0.75rem;
            }
            .stats-table th,
            .stats-table td {
                padding: 0.3rem 0.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        h2[id],
        h3[id],
        h4[id] {
            scroll-margin-top: 1.2rem;
        }
        .nav-list a.active {
            color: #b33a2a;
            border-bottom-color: #b33a2a;
        }
        .last-updated {
            display: inline-block;
            font-size: 0.8rem;
            color: #6b6b6b;
            background: #f4f1ed;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            margin-bottom: 0.6rem;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .text-muted {
            color: #5f5f5f;
        }