*,
        *::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;
            background: #f8f6f2;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #b8860b;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #8b6508;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #1a1a1a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #b8860b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.3rem;
            color: #2c2c2c;
        }
        h4 {
            font-size: 1.1rem;
            color: #3a3a3a;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 24px;
            padding: 1.8rem 2rem 2.5rem;
            margin-top: 1.2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 640px) {
            .container {
                padding: 1.2rem 1rem 1.8rem;
                border-radius: 16px;
                margin-top: 0.8rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
                padding-left: 0.7rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            h4 {
                font-size: 1rem;
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 1rem;
            border-bottom: 2px solid #e8e2d8;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #b8860b, #d4a84b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(184, 134, 11, 0.15);
            display: inline-block;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #6b6b6b;
            background: none;
            display: block;
            letter-spacing: 0.02em;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            flex-wrap: wrap;
            padding: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #2e2e2e;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #b8860b10;
            color: #b8860b;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #1a1a1a;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f0ebe3;
        }
        #nav-toggle {
            display: none;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: inline-block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fefcf9;
                border-radius: 16px;
                padding: 1rem 0.5rem;
                margin-top: 1rem;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
                border: 1px solid #ece6dc;
            }
            #nav-toggle:checked+.hamburger+.nav-list {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                width: 100%;
            }
            .nav-wrapper {
                flex-wrap: wrap;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.85rem;
            color: #6b6b6b;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #b8860b;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #6b6b6b;
        }
        .breadcrumb a:hover {
            color: #b8860b;
        }
        .breadcrumb .current {
            color: #1a1a1a;
            font-weight: 500;
        }
        .search-block {
            background: #faf7f2;
            border-radius: 60px;
            padding: 0.3rem 0.3rem 0.3rem 1.4rem;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 1.6rem 0 2rem;
            border: 1px solid #e8e0d4;
            transition: box-shadow 0.25s;
        }
        .search-block:focus-within {
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.2);
            border-color: #b8860b;
        }
        .search-block input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.7rem 0;
            font-size: 0.95rem;
            outline: none;
            color: #1a1a1a;
            min-width: 0;
        }
        .search-block input::placeholder {
            color: #9a9a9a;
        }
        .search-block button {
            background: #b8860b;
            border: none;
            color: #fff;
            padding: 0.6rem 1.5rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            white-space: nowrap;
        }
        .search-block button:hover {
            background: #9e730a;
            transform: scale(1.02);
        }
        @media (max-width: 480px) {
            .search-block {
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 0.4rem 0.4rem 0.4rem 1rem;
            }
            .search-block button {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
        }
        .toc {
            background: #faf7f2;
            border-radius: 16px;
            padding: 1.4rem 1.8rem;
            margin: 2rem 0 2.2rem;
            border-left: 4px solid #b8860b;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            columns: 2;
            column-gap: 2rem;
            margin-top: 0.6rem;
        }
        .toc li {
            margin-bottom: 0.35rem;
            break-inside: avoid;
        }
        .toc li a {
            display: inline-block;
            padding: 0.2rem 0;
            font-weight: 500;
        }
        @media (max-width: 600px) {
            .toc ul {
                columns: 1;
            }
            .toc {
                padding: 1rem 1.2rem;
            }
        }
        .highlight-box {
            background: linear-gradient(145deg, #fdf9f3, #f8f2e9);
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e8dfd2;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .highlight-box .emoji-big {
            font-size: 2.2rem;
            display: block;
            margin-bottom: 0.2rem;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #f0ebe3;
        }
        .feature-image img {
            width: 100%;
            object-fit: cover;
            max-height: 420px;
        }
        .feature-image figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.85rem;
            color: #5a5a5a;
            background: #faf7f2;
            font-style: italic;
        }
        .interview-block {
            background: #f5f0e9;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border-left: 6px solid #b8860b;
        }
        .interview-block .attribution {
            font-weight: 700;
            margin-top: 0.8rem;
            color: #3a3a3a;
            display: block;
        }
        .interview-block .attribution small {
            font-weight: 400;
            color: #6b6b6b;
        }
        .data-table-wrap {
            overflow-x: auto;
            margin: 2rem 0;
            border-radius: 14px;
            border: 1px solid #e8e0d4;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            min-width: 460px;
        }
        .data-table th {
            background: #b8860b;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #ece6dc;
        }
        .data-table tr:nth-child(even) td {
            background: #faf7f2;
        }
        .data-table tr:hover td {
            background: #f5efe5;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0 1.5rem;
        }
        .comment-box,
        .score-box {
            background: #faf7f2;
            border-radius: 20px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #e8e0d4;
        }
        .comment-box h3,
        .score-box h3 {
            margin-top: 0;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-box textarea,
        .score-box textarea,
        .comment-box input,
        .score-box input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #dcd5ca;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.92rem;
            background: #fff;
            transition: border 0.2s;
            margin-bottom: 0.8rem;
            resize: vertical;
        }
        .comment-box textarea:focus,
        .score-box textarea:focus,
        .comment-box input:focus,
        .score-box input:focus {
            outline: none;
            border-color: #b8860b;
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.12);
        }
        .comment-box textarea {
            min-height: 80px;
        }
        .btn-primary {
            background: #b8860b;
            color: #fff;
            border: none;
            padding: 0.65rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.92rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-primary:hover {
            background: #9e730a;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin-bottom: 0.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d4cfc6;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
            transform: scale(1.05);
        }
        @media (max-width: 700px) {
            .interaction-area {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .comment-box,
            .score-box {
                padding: 1.2rem 1.2rem;
            }
        }
        friend-link {
            display: block;
            margin-top: 2.5rem;
            padding-top: 1.8rem;
            border-top: 2px solid #e8e2d8;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #3a3a3a;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.4rem;
            margin-top: 0.6rem;
        }
        friend-link li a {
            font-size: 0.92rem;
            color: #5a5a5a;
            padding: 0.2rem 0;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        friend-link li a:hover {
            color: #b8860b;
            border-bottom-color: #b8860b;
            text-decoration: none;
        }
        .site-footer {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #e8e2d8;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #6b6b6b;
            gap: 1rem;
        }
        .site-footer .copyright {
            font-weight: 400;
        }
        .site-footer .copyright strong {
            color: #3a3a3a;
        }
        .badge {
            display: inline-block;
            background: #b8860b14;
            color: #b8860b;
            font-weight: 600;
            font-size: 0.75rem;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            letter-spacing: 0.02em;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #8a8a8a;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .inline-link-icon {
            color: #b8860b;
            font-weight: 500;
        }
        .spacer {
            height: 0.6rem;
        }
        .emoji-lg {
            font-size: 1.4rem;
            display: inline-block;
            margin-right: 0.2rem;
        }
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 1.8rem 0;
        }
        @media (max-width: 600px) {
            .grid-2col {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
        }
        .key-stat {
            background: #fff;
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            border: 1px solid #ece6dc;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
        }
        .key-stat .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b8860b;
            line-height: 1.2;
        }
        .key-stat .label {
            font-size: 0.9rem;
            color: #5a5a5a;
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #b8860b;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(184, 134, 11, 0.25);
            transition: transform 0.2s, background 0.2s;
            z-index: 99;
            border: none;
            cursor: pointer;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            background: #9e730a;
        }
        @media (max-width: 480px) {
            .scroll-top {
                bottom: 1.2rem;
                right: 1.2rem;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }