*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f5f0;
            color: #2c2a28;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #8b3a8b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c960c9;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 0.5rem;
        }
        header {
            background: #fff9f2;
            border-bottom: 3px solid #e6d5c0;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0 0.5rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #b85cb8, #e89b6c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        nav a {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        nav a:hover {
            background: #f0e4d8;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #5a3e3a;
            padding: 0.2rem 0.5rem;
        }
        .nav-links {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .breadcrumb {
            background: #f0ebe4;
            padding: 0.6rem 1rem;
            border-radius: 40px;
            margin: 1rem 0 1.5rem;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .breadcrumb span {
            color: #6b5a52;
        }
        .breadcrumb a {
            color: #7a4a7a;
        }
        .breadcrumb .current {
            font-weight: 600;
            color: #3a2a28;
        }
        .content {
            max-width: 1200px;
            margin: 0 auto;
            background: #fffcf8;
            padding: 2rem 1.5rem;
            border-radius: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.8rem;
            color: #3a1f3a;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 3rem;
            margin-bottom: 1rem;
            color: #4a2a4a;
            border-left: 6px solid #b85cb8;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
            color: #5a3a4a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.6rem;
            margin-bottom: 0.5rem;
            color: #6a4a4a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2c2a28;
        }
        .highlight {
            background: #f7efe7;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .feature-img {
            margin: 2rem 0;
            border-radius: 16px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-img figcaption {
            font-size: 0.9rem;
            color: #6b5a52;
            text-align: center;
            margin-top: 0.5rem;
            font-style: italic;
        }
        ul,
        ol {
            margin: 1rem 0 1.5rem 1.8rem;
        }
        li {
            margin-bottom: 0.5rem;
            font-size: 1.02rem;
        }
        .grid-2,
        .grid-3 {
            display: grid;
            gap: 1.8rem;
            margin: 2rem 0;
        }
        .grid-2 {
            grid-template-columns: 1fr 1fr;
        }
        .grid-3 {
            grid-template-columns: 1fr 1fr 1fr;
        }
        .card {
            background: #f7f1ea;
            padding: 1.5rem;
            border-radius: 16px;
            border: 1px solid #e6dbd0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .card h4 {
            margin-top: 0;
        }
        .card i {
            color: #b85cb8;
            font-size: 1.6rem;
            margin-bottom: 0.6rem;
            display: inline-block;
        }
        .search-box {
            background: #f3ece4;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            margin: 2.5rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .search-box input {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dccfc4;
            border-radius: 40px;
            font-size: 1rem;
            background: #fffcf8;
            outline: none;
            transition: border 0.2s;
        }
        .search-box input:focus {
            border-color: #b85cb8;
        }
        .search-box button {
            background: #8b3a8b;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #a84ca8;
            transform: scale(1.02);
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .comment-area,
        .score-area {
            background: #f7f1ea;
            padding: 1.8rem;
            border-radius: 20px;
            border: 1px solid #e6dbd0;
        }
        .comment-area h3,
        .score-area h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-area textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dccfc4;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            background: #fffcf8;
            outline: none;
            transition: border 0.2s;
        }
        .comment-area textarea:focus {
            border-color: #b85cb8;
        }
        .comment-area button,
        .score-area button {
            background: #8b3a8b;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 0.8rem;
        }
        .comment-area button:hover,
        .score-area button:hover {
            background: #a84ca8;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            font-size: 2rem;
            margin: 0.8rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #dccfc4;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        friend-link {
            display: block;
            background: #f3ece4;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            margin: 2.5rem 0 1.5rem;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        friend-link .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            margin-top: 0.8rem;
        }
        friend-link .link-list a {
            background: #fffcf8;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            border: 1px solid #dccfc4;
            font-size: 0.92rem;
            transition: background 0.2s, border-color 0.2s;
        }
        friend-link .link-list a:hover {
            background: #e8dcd0;
            border-color: #b85cb8;
            text-decoration: none;
        }
        footer {
            background: #2c2a28;
            color: #ddd8d0;
            padding: 2rem 1rem;
            margin-top: 3rem;
            border-radius: 24px 24px 0 0;
            text-align: center;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        footer a {
            color: #dab0da;
        }
        footer a:hover {
            color: #f0d0f0;
        }
        footer .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem 2rem;
            margin-bottom: 1rem;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #8a7a72;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #e6dbd0;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem;
                gap: 0.6rem;
            }
            .nav-links.open {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .interact-grid {
                grid-template-columns: 1fr;
            }
            .search-box {
                flex-direction: column;
                align-items: stretch;
            }
            .search-box input {
                min-width: unset;
            }
            .content {
                padding: 1.2rem 1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none;
            }
            .nav-links {
                display: flex !important;
            }
        }
        .score-feedback,
        .comment-feedback {
            font-size: 0.9rem;
            margin-top: 0.5rem;
            color: #6a8a5a;
            font-weight: 500;
            min-height: 1.5em;
        }
        .idea-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: #f7f1ea;
            border-radius: 12px;
            overflow: hidden;
        }
        .idea-table th {
            background: #8b3a8b;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .idea-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e6dbd0;
        }
        .idea-table tr:last-child td {
            border-bottom: none;
        }
        .idea-table tr:hover td {
            background: #ece3d8;
        }
        blockquote {
            background: #f0e8e0;
            border-left: 6px solid #b85cb8;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 16px 16px 0;
            font-style: italic;
            color: #3a2a28;
        }
        blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-size: 0.9rem;
            font-style: normal;
            color: #7a5a5a;
        }