*,
        *::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;
            background: #0b0e14;
            color: #e8edf5;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #6bc5ff;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #a3dcff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h1 {
            font-size: 2.6rem;
            margin-bottom: 0.75rem;
            color: #f0c8ff;
        }
        h2 {
            font-size: 2rem;
            margin-top: 3rem;
            margin-bottom: 1.25rem;
            color: #d9a8ff;
            border-bottom: 2px solid #2a2f3a;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: #c08aff;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #a87ce0;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.05rem;
        }
        ul,
        ol {
            margin-bottom: 1.5rem;
            padding-left: 1.75rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        strong,
        b {
            color: #ffd78a;
            font-weight: 700;
        }
        em,
        i {
            color: #b8cfff;
        }
        hr {
            border: none;
            border-top: 1px solid #2a2f3a;
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }
        .site-header {
            background: linear-gradient(145deg, #131a24 0%, #1a1f2b 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid #2a2f3a;
            backdrop-filter: blur(8px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ffb3f0;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #ffb3f0, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s ease;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            display: block;
            -webkit-text-fill-color: #8892a0;
            color: #8892a0;
            font-weight: 400;
            letter-spacing: 0.02em;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            padding: 0;
            margin: 0;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-list li a {
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #c8d0dc;
            transition: background 0.25s, color 0.25s;
            display: inline-block;
        }
        .nav-list li a:hover {
            background: #2a3142;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #e8edf5;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #2a3142;
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked~.nav-list {
            display: flex;
            flex-direction: column;
            width: 100%;
            background: #1a1f2b;
            padding: 1rem;
            border-radius: 12px;
            margin-top: 0.75rem;
            border: 1px solid #2a2f3a;
        }
        .breadcrumb {
            padding: 0.75rem 0;
            font-size: 0.9rem;
            color: #8892a0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.5rem;
            color: #5a6270;
        }
        .breadcrumb a {
            color: #6bc5ff;
        }
        .breadcrumb a:hover {
            color: #a3dcff;
        }
        .breadcrumb .active {
            color: #c8d0dc;
        }
        .search-section {
            background: #141a24;
            border-radius: 16px;
            padding: 2rem 1.5rem;
            margin: 2rem 0;
            border: 1px solid #2a2f3a;
        }
        .search-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            max-width: 640px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.85rem 1.25rem;
            border-radius: 60px;
            border: 1px solid #3a4050;
            background: #0b0e14;
            color: #e8edf5;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s, box-shadow 0.3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #7c5cbf;
            box-shadow: 0 0 0 3px rgba(124, 92, 191, 0.25);
        }
        .search-form button {
            padding: 0.85rem 2rem;
            border-radius: 60px;
            border: none;
            background: linear-gradient(135deg, #7c5cbf, #a78bfa);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 92, 191, 0.35);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .interaction-card {
            background: #141a24;
            border-radius: 16px;
            padding: 1.75rem;
            border: 1px solid #2a2f3a;
            transition: border-color 0.3s;
        }
        .interaction-card:hover {
            border-color: #4a4f6a;
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
            margin-top: 1rem;
        }
        .interaction-card textarea,
        .interaction-card input[type="text"],
        .interaction-card input[type="number"],
        .interaction-card select {
            padding: 0.75rem 1rem;
            border-radius: 10px;
            border: 1px solid #3a4050;
            background: #0b0e14;
            color: #e8edf5;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
            font-family: inherit;
            width: 100%;
        }
        .interaction-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #7c5cbf;
            box-shadow: 0 0 0 3px rgba(124, 92, 191, 0.2);
        }
        .interaction-card .btn-submit {
            padding: 0.75rem 1.5rem;
            border-radius: 60px;
            border: none;
            background: linear-gradient(135deg, #7c5cbf, #a78bfa);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            align-self: flex-start;
        }
        .interaction-card .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 92, 191, 0.35);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.25rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #3a4050;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5c842;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
            background: #141a24;
            padding: 0.5rem;
            border: 1px solid #2a2f3a;
        }
        .featured-image img {
            border-radius: 12px;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
            background: #1e2532;
        }
        .featured-image figcaption {
            padding: 0.75rem 1rem 0.25rem;
            font-size: 0.9rem;
            color: #8892a0;
            text-align: center;
        }
        friend-link {
            display: block;
            background: #141a24;
            border-radius: 16px;
            padding: 2rem 1.75rem;
            margin: 2.5rem 0 1.5rem;
            border: 1px solid #2a2f3a;
        }
        friend-link::before {
            content: "🔗 Friend Links";
            display: block;
            font-size: 1.3rem;
            font-weight: 700;
            color: #d9a8ff;
            margin-bottom: 1rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.25rem 0.75rem 0.25rem 0;
            padding: 0.4rem 1rem;
            background: #1e2532;
            border-radius: 60px;
            font-size: 0.95rem;
            color: #b0c4f0;
            transition: background 0.2s, color 0.2s;
        }
        friend-link a:hover {
            background: #2a3142;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0d1119;
            border-top: 1px solid #1e2532;
            padding: 2.5rem 0 1.5rem;
            margin-top: auto;
            text-align: center;
            color: #6a7280;
            font-size: 0.9rem;
        }
        .site-footer .copyright {
            margin-top: 1rem;
            letter-spacing: 0.02em;
        }
        .site-footer .copyright i {
            color: #b06ab0;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                width: 100%;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
                flex-direction: column;
                gap: 0.25rem;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .container {
                padding: 0 1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .interaction-card {
                padding: 1.25rem;
            }
            .featured-image {
                padding: 0.25rem;
            }
            friend-link {
                padding: 1.25rem;
            }
            friend-link a {
                display: block;
                margin: 0.4rem 0;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .my-logo {
                font-size: 1.1rem;
            }
            .interaction-card .btn-submit {
                width: 100%;
                text-align: center;
            }
            .star-rating label {
                font-size: 1.6rem;
            }
        }
        @media (min-width: 769px) {
            #nav-toggle {
                display: none;
            }
            .nav-list {
                display: flex !important;
                flex-direction: row;
            }
            .hamburger {
                display: none !important;
            }
        }
        .text-muted {
            color: #6a7280;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated {
            display: inline-block;
            background: #1e2532;
            padding: 0.3rem 1rem;
            border-radius: 60px;
            font-size: 0.85rem;
            color: #8892a0;
            margin-bottom: 1.5rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
            color: #a78bfa;
        }
        .table-of-contents {
            background: #141a24;
            border-radius: 16px;
            padding: 1.75rem 2rem;
            border: 1px solid #2a2f3a;
            margin: 2rem 0;
        }
        .table-of-contents ol {
            margin: 0;
            padding-left: 1.5rem;
        }
        .table-of-contents a {
            color: #b0c4f0;
        }
        .table-of-contents a:hover {
            color: #fff;
        }
        .highlight-box {
            background: #1a2230;
            border-left: 4px solid #a78bfa;
            padding: 1.25rem 1.75rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #2a3142;
            color: #e8edf5;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            border: 1px solid #4a4f6a;
            cursor: pointer;
            transition: background 0.3s, transform 0.3s;
            z-index: 50;
            opacity: 0.7;
        }
        .btn-top:hover {
            background: #7c5cbf;
            transform: translateY(-4px);
            opacity: 1;
        }
        @media (max-width: 480px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }