*,
        *::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, sans-serif;
            background: #0b0e1a;
            color: #e8edf5;
            line-height: 1.75;
            min-height: 100vh;
        }
        a {
            color: #6ec8ff;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #b4e0ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.01em;
            color: #f0f4ff;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, #f5b7ff, #6ec8ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 3rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid rgba(110, 200, 255, 0.25);
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: #c8daff;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #a8c8ff;
        }
        p {
            margin-bottom: 1.25rem;
            max-width: 78ch;
        }
        ul,
        ol {
            margin-bottom: 1.5rem;
            padding-left: 1.75rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        blockquote {
            border-left: 4px solid #6ec8ff;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(110, 200, 255, 0.06);
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #cfdfff;
        }
        strong {
            color: #ffffff;
            font-weight: 700;
        }
        code {
            background: #1a1f32;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-size: 0.9em;
            color: #f5b7ff;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(180deg, #0f1424 0%, #0b0e1a 100%);
            padding: 16px 0;
            border-bottom: 1px solid rgba(110, 200, 255, 0.12);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f5b7ff, #6ec8ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.55em;
            font-weight: 400;
            -webkit-text-fill-color: #8a9bc0;
            color: #8a9bc0;
            display: block;
            letter-spacing: 0.08em;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #e8edf5;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(110, 200, 255, 0.1);
        }
        .primary-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
        }
        .primary-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: border-color 0.25s, color 0.25s;
        }
        .primary-nav a:hover {
            border-bottom-color: #6ec8ff;
            text-decoration: none;
        }
        .primary-nav a.active {
            border-bottom-color: #f5b7ff;
            color: #f5b7ff;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            font-size: 0.85rem;
            padding: 14px 0 6px;
            color: #8a9bc0;
        }
        .breadcrumb a {
            color: #8a9bc0;
        }
        .breadcrumb a:hover {
            color: #6ec8ff;
        }
        .breadcrumb span {
            color: #5a6a8a;
        }
        .content-area {
            padding: 30px 0 60px;
        }
        .content-area p,
        .content-area li {
            font-size: 1.05rem;
        }
        .feature-image {
            margin: 2rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
            background: #1a1f32;
            padding: 8px;
        }
        .feature-image img {
            border-radius: 10px;
            width: 100%;
        }
        .feature-image figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: #8a9bc0;
            padding: 10px 0 4px;
        }
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin: 2rem 0;
        }
        .info-card {
            background: #12172e;
            padding: 24px 20px;
            border-radius: 16px;
            border: 1px solid rgba(110, 200, 255, 0.08);
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
        }
        .info-card:hover {
            transform: translateY(-4px);
            border-color: rgba(110, 200, 255, 0.3);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
        }
        .info-card i {
            font-size: 2rem;
            color: #6ec8ff;
            margin-bottom: 0.75rem;
        }
        .info-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .info-card p {
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .form-section {
            background: #12172e;
            border-radius: 20px;
            padding: 28px 32px;
            margin: 2.5rem 0;
            border: 1px solid rgba(110, 200, 255, 0.08);
        }
        .form-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 6px;
            color: #c8daff;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: #0b0e1a;
            border: 1px solid #2a3150;
            border-radius: 10px;
            color: #e8edf5;
            font-size: 1rem;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #6ec8ff;
            box-shadow: 0 0 0 3px rgba(110, 200, 255, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, #6ec8ff, #4a8ed0);
            border: none;
            border-radius: 40px;
            color: #0b0e1a;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(110, 200, 255, 0.3);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid #6ec8ff;
            color: #6ec8ff;
        }
        .btn-secondary:hover {
            background: rgba(110, 200, 255, 0.08);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #3a4260;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5c542;
        }
        .comment-item {
            padding: 18px 0;
            border-bottom: 1px solid rgba(110, 200, 255, 0.06);
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #f5b7ff;
        }
        .comment-meta {
            font-size: 0.8rem;
            color: #6a7a9a;
        }
        .site-footer {
            background: #0a0d18;
            border-top: 1px solid rgba(110, 200, 255, 0.08);
            padding: 40px 0 30px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }
        .footer-inner h4 {
            font-size: 1rem;
            margin-top: 0;
            color: #c8daff;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner ul li {
            margin-bottom: 8px;
        }
        .footer-inner ul li a {
            font-size: 0.9rem;
            color: #8a9bc0;
        }
        .footer-inner ul li a:hover {
            color: #6ec8ff;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(110, 200, 255, 0.06);
            font-size: 0.85rem;
            color: #5a6a8a;
        }
        .copyright a {
            color: #8a9bc0;
        }
        friend-link {
            display: block;
            padding: 12px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 0 12px 6px 0;
            font-size: 0.9rem;
            color: #8a9bc0;
        }
        friend-link a:hover {
            color: #6ec8ff;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f1424;
                padding: 16px 12px;
                border-radius: 16px;
                margin-top: 8px;
                border: 1px solid rgba(110, 200, 255, 0.08);
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 10px 4px;
                border-bottom: 1px solid rgba(110, 200, 255, 0.06);
            }
            .primary-nav a:last-child {
                border-bottom: none;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .form-section {
                padding: 20px 16px;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (min-width: 769px) {
            .nav-toggle {
                display: none !important;
            }
            .primary-nav {
                display: flex !important;
            }
        }
        .last-updated {
            display: inline-block;
            font-size: 0.85rem;
            color: #6a7a9a;
            background: #12172e;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 1.5rem;
        }
        .tag {
            display: inline-block;
            background: rgba(110, 200, 255, 0.12);
            color: #6ec8ff;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .divider {
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(110, 200, 255, 0.2), transparent);
            margin: 3rem 0;
            border: none;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #12172e;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid rgba(110, 200, 255, 0.06);
        }
        th {
            background: #1a1f32;
            color: #c8daff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0b0e1a;
        }
        ::-webkit-scrollbar-thumb {
            background: #2a3150;
            border-radius: 20px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #3a4a6a;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }