*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
            background: #0b0e17;
            color: #e8edf5;
            line-height: 1.75;
            font-size: 16px;
            font-weight: 400;
        }
        a {
            color: #7aa9ff;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #b3ccff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #ffffff;
            letter-spacing: 0.01em;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.4rem 0 1rem 0;
            border-bottom: 2px solid #2a3450;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.4rem;
            margin: 1.8rem 0 0.8rem 0;
        }
        h4 {
            font-size: 1.15rem;
            margin: 1.4rem 0 0.5rem 0;
            color: #c8d6f0;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: #111624;
            border-bottom: 1px solid #1f2a3f;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(6px);
            background: rgba(11, 14, 23, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #7aa9ff, #c084fc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid #2a3450;
            color: #e8edf5;
            font-size: 1.4rem;
            padding: 0.3rem 0.7rem;
            border-radius: 6px;
            cursor: pointer;
        }
        .nav-toggle:focus {
            outline: 2px solid #7aa9ff;
        }
        .primary-nav {
            display: flex;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .primary-nav a {
            color: #b0bedd;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .primary-nav a:hover {
            color: #ffffff;
            border-bottom-color: #7aa9ff;
            text-decoration: none;
        }
        .primary-nav a.active {
            color: #ffffff;
            border-bottom-color: #7aa9ff;
        }
        .breadcrumb {
            background: #151c2a;
            padding: 0.6rem 1.2rem;
            border-radius: 8px;
            margin: 1rem 0 1.2rem 0;
            font-size: 0.85rem;
            color: #8899bb;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: #7aa9ff;
        }
        .breadcrumb span.sep {
            margin: 0 0.3rem;
            color: #556688;
        }
        .hero {
            background: linear-gradient(145deg, #0f1625, #1a2340);
            border-radius: 16px;
            padding: 2.4rem 2rem;
            margin: 1.2rem 0 2rem 0;
            border: 1px solid #1f2a42;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "✨";
            position: absolute;
            bottom: -20px;
            right: 20px;
            font-size: 8rem;
            opacity: 0.06;
            pointer-events: none;
        }
        .hero h1 {
            font-size: 2.6rem;
            margin-bottom: 0.5rem;
        }
        .hero p {
            font-size: 1.1rem;
            max-width: 720px;
            color: #b8c7e5;
        }
        .hero .meta {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #8899bb;
        }
        .hero .meta i {
            margin-right: 0.3rem;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 14px;
            overflow: hidden;
            background: #151c2a;
            border: 1px solid #1f2a42;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            min-height: 220px;
            background: #1a2340;
        }
        .featured-image .img-caption {
            padding: 0.6rem 1.2rem;
            font-size: 0.85rem;
            color: #8899bb;
            background: #0f1625;
            border-top: 1px solid #1f2a42;
        }
        .search-box {
            background: #111624;
            border: 1px solid #2a3450;
            border-radius: 40px;
            padding: 0.1rem 0.1rem 0.1rem 1.4rem;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 1.2rem 0;
        }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 0.7rem 0;
            font-size: 0.95rem;
            color: #e8edf5;
            outline: none;
            min-width: 0;
        }
        .search-box input::placeholder {
            color: #556688;
        }
        .search-box button {
            background: #2a3450;
            border: none;
            color: #e8edf5;
            padding: 0.6rem 1.4rem;
            border-radius: 40px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.2s;
            font-weight: 600;
        }
        .search-box button:hover {
            background: #3d4a6a;
        }
        .feedback-section {
            background: #111624;
            border: 1px solid #1f2a42;
            border-radius: 14px;
            padding: 1.8rem;
            margin: 2.4rem 0;
        }
        .feedback-section h3 {
            margin-top: 0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin-top: 1.2rem;
        }
        .feedback-card {
            background: #0b0e17;
            border-radius: 10px;
            padding: 1.2rem 1.4rem;
            border: 1px solid #1f2a42;
        }
        .feedback-card label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            font-size: 0.95rem;
        }
        .feedback-card textarea,
        .feedback-card input,
        .feedback-card select {
            width: 100%;
            background: #151c2a;
            border: 1px solid #2a3450;
            border-radius: 8px;
            padding: 0.6rem 0.8rem;
            color: #e8edf5;
            font-size: 0.9rem;
            font-family: inherit;
            resize: vertical;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus,
        .feedback-card select:focus {
            outline: 2px solid #7aa9ff;
            border-color: transparent;
        }
        .feedback-card .btn {
            background: #2a3450;
            border: none;
            color: #e8edf5;
            padding: 0.5rem 1.2rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            margin-top: 0.6rem;
            transition: background 0.2s;
            font-size: 0.9rem;
        }
        .feedback-card .btn:hover {
            background: #3d4a6a;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ffc856;
            cursor: pointer;
            margin: 0.4rem 0;
        }
        .rating-stars i {
            transition: transform 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4rem 0;
            border-radius: 10px;
            border: 1px solid #1f2a42;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            background: #111624;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #1f2a42;
        }
        th {
            background: #1a2340;
            font-weight: 700;
            color: #b8c7e5;
        }
        tr:hover td {
            background: #151c2a;
        }
        .related-links {
            background: #111624;
            border: 1px solid #1f2a42;
            border-radius: 12px;
            padding: 1.4rem 1.8rem;
            margin: 1.8rem 0;
        }
        .related-links ul {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 0.6rem 1.2rem;
        }
        .related-links li a {
            display: inline-block;
            padding: 0.3rem 0;
            font-size: 0.92rem;
        }
        .related-links li a::before {
            content: "🔗 ";
            font-size: 0.8rem;
        }
        .site-footer {
            background: #0a0e17;
            border-top: 1px solid #1f2a42;
            padding: 2rem 0 1.6rem 0;
            margin-top: 3rem;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        friend-link {
            display: block;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1.2rem 0.2rem 0;
            font-size: 0.9rem;
            color: #8899bb;
        }
        friend-link a:hover {
            color: #b3ccff;
        }
        .copyright {
            font-size: 0.82rem;
            color: #556688;
            border-top: 1px solid #1a2340;
            padding-top: 1.2rem;
            margin-top: 0.4rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .hero {
                padding: 1.6rem 1.2rem;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.4rem;
                padding: 0.8rem 0 0.2rem 0;
                border-top: 1px solid #1f2a42;
                margin-top: 0.6rem;
            }
            .primary-nav.show {
                display: flex;
            }
            .primary-nav a {
                padding: 0.4rem 0;
                border-bottom: none;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .related-links ul {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.78rem;
                padding: 0.4rem 0.8rem;
            }
            .search-box {
                max-width: 100%;
            }
            .table-wrap {
                font-size: 0.82rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .hero {
                padding: 1.2rem 0.8rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        .text-accent {
            color: #7aa9ff;
        }
        .text-glow {
            color: #c084fc;
        }
        .mt-1 {
            margin-top: 0.8rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .list-check li {
            margin-bottom: 0.3rem;
        }
        .list-check li::marker {
            content: "✅ ";
        }
        .highlight-box {
            background: #151c2a;
            border-left: 4px solid #7aa9ff;
            padding: 1rem 1.4rem;
            border-radius: 0 10px 10px 0;
            margin: 1.2rem 0;
        }
        .highlight-box strong {
            color: #ffffff;
        }
        .emoji-big {
            font-size: 1.8rem;
            display: inline-block;
            margin-right: 0.3rem;
        }
        .schema-hidden {
            display: none;
        }