*,
        *::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: #0b0e1a;
            color: #e8edf5;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #7ec8e3;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus-visible {
            color: #b3e4ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #f0f6ff;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 0.75rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2rem 0 0.75rem;
            border-bottom: 2px solid #2a3a5c;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.5rem 0 0.5rem;
            color: #d4e2ff;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem;
            color: #b8cfff;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: #9aaec9;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-1 {
            gap: 0.75rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1a2a44 100%);
            border-bottom: 1px solid #2d4270;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
        }
        .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, #f7d875, #ff9a56);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-shadow: 0 0 30px rgba(255, 180, 60, 0.15);
            display: inline-block;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #b0c4e8;
            color: #b0c4e8;
            display: block;
            font-weight: 400;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #e8edf5;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #1f3150;
        }
        .main-nav {
            display: flex;
            gap: 0.3rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            display: inline-block;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #cfdfff;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #2a4270;
            color: #fff;
            text-decoration: none;
        }
        .breadcrumb {
            padding: 0.6rem 0 0.2rem;
            font-size: 0.85rem;
            color: #8ea5c9;
        }
        .breadcrumb a {
            color: #8ea5c9;
        }
        .breadcrumb a:hover {
            color: #b3d4ff;
        }
        .breadcrumb .sep {
            margin: 0 0.4rem;
            color: #4a6080;
        }
        .hero-section {
            background: linear-gradient(145deg, #0e1628, #1b2a4a);
            border-radius: 20px;
            padding: 2.5rem 2rem;
            margin: 1.5rem 0 2rem;
            border: 1px solid #2d4270;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
        }
        .hero-section h1 {
            font-size: 2.6rem;
            background: linear-gradient(135deg, #f9e07f, #fca85f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section .subtitle {
            font-size: 1.15rem;
            color: #b8cfff;
            max-width: 720px;
        }
        .hero-cta {
            display: inline-block;
            margin-top: 1rem;
            padding: 0.7rem 2rem;
            background: linear-gradient(135deg, #f7b731, #f59e42);
            color: #0b0e1a !important;
            font-weight: 700;
            border-radius: 60px;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .hero-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(247, 183, 49, 0.35);
            text-decoration: none;
        }
        .search-box {
            background: #162240;
            border-radius: 60px;
            padding: 0.25rem 0.25rem 0.25rem 1.5rem;
            display: flex;
            align-items: center;
            border: 1px solid #2d4270;
            max-width: 480px;
            margin: 1.5rem auto;
            transition: border-color 0.3s;
        }
        .search-box:focus-within {
            border-color: #f7b731;
        }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 0.6rem 0;
            color: #e8edf5;
            font-size: 0.95rem;
            outline: none;
            min-width: 0;
        }
        .search-box input::placeholder {
            color: #6a7fa0;
        }
        .search-box button {
            background: #f7b731;
            border: none;
            border-radius: 60px;
            padding: 0.5rem 1.4rem;
            font-weight: 600;
            color: #0b0e1a;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
        }
        .search-box button:hover {
            background: #f5c542;
            transform: scale(1.02);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .card {
            background: #131d33;
            border-radius: 16px;
            padding: 1.4rem;
            border: 1px solid #233458;
            transition: transform 0.25s, box-shadow 0.3s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
            border-color: #3a5780;
        }
        .card i {
            font-size: 2rem;
            color: #f7b731;
            margin-bottom: 0.6rem;
        }
        .card h3 {
            margin-top: 0;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.6);
            background: #131d33;
            padding: 0.5rem;
        }
        .featured-image img {
            border-radius: 12px;
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.6rem 0.5rem 0.3rem;
            font-size: 0.85rem;
            color: #9aaec9;
            text-align: center;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        .interaction-card {
            background: #131d33;
            border-radius: 16px;
            padding: 1.8rem;
            border: 1px solid #233458;
        }
        .interaction-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 0.25rem;
            font-size: 0.9rem;
            color: #b8cfff;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            background: #0b0e1a;
            border: 1px solid #2a3a5c;
            border-radius: 10px;
            padding: 0.65rem 1rem;
            color: #e8edf5;
            font-size: 0.95rem;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #f7b731;
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn-primary {
            background: linear-gradient(135deg, #f7b731, #f59e42);
            border: none;
            border-radius: 60px;
            padding: 0.6rem 2rem;
            font-weight: 600;
            color: #0b0e1a;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(247, 183, 49, 0.3);
        }
        .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: 1.6rem;
            color: #3a5070;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7b731;
        }
        .links-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 0.8rem 1.2rem;
            margin: 1.5rem 0;
            padding: 0;
            list-style: none;
        }
        .links-list li a {
            display: block;
            padding: 0.5rem 0.8rem;
            background: #131d33;
            border-radius: 10px;
            border-left: 3px solid #f7b731;
            font-size: 0.9rem;
            transition: background 0.2s, padding-left 0.2s;
        }
        .links-list li a:hover {
            background: #1b2a4a;
            padding-left: 1.2rem;
            text-decoration: none;
        }
        .site-footer {
            margin-top: 3rem;
            padding: 2.5rem 0 1.5rem;
            border-top: 1px solid #1f3150;
            background: #0a0f1e;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-grid h4 {
            color: #d4e2ff;
            margin-bottom: 0.8rem;
        }
        .footer-grid a {
            display: block;
            padding: 0.2rem 0;
            font-size: 0.9rem;
            color: #8ea5c9;
        }
        .footer-grid a:hover {
            color: #b3d4ff;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid #1a2a44;
            margin-top: 1.5rem;
            font-size: 0.9rem;
            color: #8ea5c9;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            color: #8ea5c9;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: #5a7090;
            border-top: 1px solid #152238;
            margin-top: 1.5rem;
        }
        @media (max-width: 820px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 1rem;
                border-radius: 10px;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero-section {
                padding: 1.6rem 1.2rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .search-box {
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 0.3rem 0.3rem 0.3rem 1rem;
            }
            .search-box input {
                width: 100%;
                padding: 0.4rem 0;
            }
            .search-box button {
                width: 100%;
                justify-content: center;
                margin-top: 0.3rem;
            }
            .links-list {
                grid-template-columns: 1fr;
            }
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .highlight {
            color: #f7d875;
            font-weight: 600;
        }
        .badge {
            display: inline-block;
            background: #2a4270;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #b8cfff;
        }
        .last-updated {
            display: block;
            text-align: right;
            font-size: 0.85rem;
            color: #6a7fa0;
            margin-top: 1rem;
            padding-top: 0.5rem;
            border-top: 1px solid #1a2a44;
        }
        .toc {
            background: #111b2e;
            border-radius: 14px;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border: 1px solid #233458;
        }
        .toc ol {
            margin: 0;
            padding-left: 1.2rem;
        }
        .toc a {
            color: #b8cfff;
        }
        .toc a:hover {
            color: #f7d875;
        }
        .author-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 1rem 0;
            border-top: 1px solid #1f3150;
            border-bottom: 1px solid #1f3150;
            margin: 1.5rem 0;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .author-meta i {
            color: #f7b731;
        }