*,
        *::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, sans-serif;
            background: #0b0d1a;
            color: #d0d5e0;
            line-height: 1.7;
            padding: 0 1rem;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #00e5ff;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus-visible {
            color: #ff00c8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.25;
            color: #f0f4ff;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 2px solid #00e5ff44;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 4px solid #00e5ff;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #b0f0ff;
        }
        h4 {
            font-size: 1.1rem;
            color: #90d0f0;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 0.5rem;
            flex: 1;
        }
        .site-header {
            padding: 1.2rem 0;
            border-bottom: 1px solid #1e2a3a;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #00e5ff, #ff00c8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            font-size: 1.6rem;
            -webkit-text-fill-color: initial;
            color: #00e5ff;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 1.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list a {
            font-weight: 500;
            padding: 0.3rem 0.1rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .nav-list a:hover {
            border-bottom-color: #ff00c8;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #00e5ff;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.7rem 0;
            margin: 0.5rem 0 1rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #1a2640;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #5a6a8a;
        }
        .breadcrumb a {
            color: #7a8aaa;
        }
        .breadcrumb a:hover {
            color: #00e5ff;
        }
        .breadcrumb .current {
            color: #ff00c8;
            font-weight: 500;
        }
        .search-section {
            background: #11162b;
            border-radius: 12px;
            padding: 1.5rem 1.8rem;
            margin: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            border: 1px solid #1e2a50;
        }
        .search-section label {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #b0d0ff;
        }
        .search-form {
            display: flex;
            flex: 1 1 280px;
            gap: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 1px solid #2a3a5a;
            border-radius: 6px;
            background: #0b0d1a;
            color: #e0e8ff;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            border-color: #00e5ff;
        }
        .search-form button {
            padding: 0.7rem 1.4rem;
            background: #00e5ff;
            border: none;
            border-radius: 6px;
            color: #0b0d1a;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #ff00c8;
            color: #fff;
        }
        .search-form button:active {
            transform: scale(0.96);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        @media (max-width:680px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #11162b;
            border-radius: 12px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #1e2a50;
        }
        .card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin: 0.8rem 0 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #3a4a6a;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffc107;
        }
        .card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .card form input,
        .card form textarea {
            padding: 0.7rem 1rem;
            border: 1px solid #2a3a5a;
            border-radius: 6px;
            background: #0b0d1a;
            color: #e0e8ff;
            font-size: 0.95rem;
            outline: none;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .card form input:focus,
        .card form textarea:focus {
            border-color: #00e5ff;
        }
        .card form textarea {
            min-height: 90px;
            resize: vertical;
        }
        .card form button {
            align-self: flex-start;
            padding: 0.6rem 1.6rem;
            background: #ff00c8;
            border: none;
            border-radius: 6px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .card form button:hover {
            background: #d000a8;
        }
        .content {
            margin: 2rem 0;
        }
        .content figure {
            margin: 1.8rem 0;
            background: #11162b;
            border-radius: 10px;
            padding: 1rem;
            border: 1px solid #1e2a50;
        }
        .content figure img {
            border-radius: 6px;
        }
        .content figure figcaption {
            text-align: center;
            color: #7a8aaa;
            font-size: 0.9rem;
            margin-top: 0.6rem;
        }
        .highlight-box {
            background: #0f1a30;
            border-left: 4px solid #ff00c8;
            padding: 1.2rem 1.6rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .highlight-box strong {
            color: #ff80d0;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
            background: #0f1428;
            padding: 1rem 1.4rem;
            border-radius: 8px;
            margin: 1.2rem 0;
            list-style: none;
        }
        .link-list li a {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .link-list li a::before {
            content: "🔗";
            font-size: 0.8rem;
        }
        .site-footer {
            border-top: 1px solid #1e2a3a;
            padding: 2rem 0 1.5rem;
            margin-top: 3rem;
            font-size: 0.9rem;
            color: #6a7a9a;
        }
        .site-footer friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            padding: 0.8rem 0;
            margin-bottom: 0.8rem;
        }
        .site-footer friend-link a {
            color: #8a9aba;
        }
        .site-footer friend-link a:hover {
            color: #00e5ff;
        }
        .copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.5rem;
            padding-top: 0.8rem;
            border-top: 1px solid #141e30;
        }
        @media (max-width:768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                background: #0f1428;
                padding: 1rem 1.2rem;
                border-radius: 10px;
                position: absolute;
                top: 100%;
                right: 0;
                min-width: 200px;
                border: 1px solid #1e2a50;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
                gap: 0.6rem;
            }
            .nav-wrapper {
                position: relative;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .site-header {
                position: relative;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            body {
                padding: 0 0.6rem;
            }
        }
        @media (max-width:480px) {
            .search-section {
                padding: 1rem;
            }
            .card {
                padding: 1rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        .badge {
            display: inline-block;
            background: #1a2a4a;
            color: #80d0ff;
            padding: 0.15rem 0.7rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        hr {
            border: none;
            border-top: 1px solid #1a2640;
            margin: 2rem 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #0f1428;
            border-radius: 8px;
            overflow: hidden;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #1a2640;
        }
        th {
            background: #1a2a4a;
            color: #b0d0ff;
            font-weight: 600;
        }
        tr:hover td {
            background: #141e30;
        }