*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #0b0e1a;
            color: #e3e9f2;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #7bb3ff;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #ffd966;
            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: 600;
            line-height: 1.3;
            color: #f0f4ff;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }
        .site-header {
            background: linear-gradient(135deg, #0d1225 0%, #1a1f35 100%);
            border-bottom: 2px solid #2a3a6e;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem 1.5rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #f0e68c, #ffd966);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #7bb3ff;
            color: #7bb3ff;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #f0f4ff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem 1rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
        }
        .nav-menu li a {
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #c8d6ef;
            transition: background 0.2s, color 0.2s;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .nav-menu li a:hover,
        .nav-menu li a:focus-visible {
            background: rgba(123, 179, 255, 0.15);
            color: #ffd966;
            text-decoration: none;
        }
        .nav-menu li a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .breadcrumb {
            background: rgba(13, 18, 37, 0.7);
            padding: 0.6rem 0;
            border-bottom: 1px solid #1e2a4a;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            list-style: none;
            padding: 0;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #5a6e9e;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #8ba4d4;
        }
        .breadcrumb a:hover {
            color: #ffd966;
        }
        .breadcrumb .current {
            color: #c8d6ef;
            font-weight: 500;
        }
        .hero {
            padding: 3rem 0 2rem;
            background: radial-gradient(ellipse at 30% 20%, #141c3a, #0b0e1a 70%);
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #f0e68c, #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 780px;
            color: #b0c4e8;
            margin-bottom: 1.5rem;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            font-size: 0.9rem;
            color: #7a92b8;
        }
        .hero-meta i {
            margin-right: 0.35rem;
            color: #ffd966;
        }
        .search-section {
            margin: 2rem 0 1.5rem;
        }
        .search-form {
            display: flex;
            max-width: 560px;
            border-radius: 40px;
            overflow: hidden;
            border: 1px solid #2a3a6e;
            background: #0d1225;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .search-form:focus-within {
            border-color: #7bb3ff;
            box-shadow: 0 0 0 3px rgba(123, 179, 255, 0.2);
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.8rem 1.2rem;
            background: transparent;
            border: none;
            color: #f0f4ff;
            font-size: 0.95rem;
            outline: none;
            min-width: 0;
        }
        .search-form input[type="text"]::placeholder {
            color: #5a6e9e;
        }
        .search-form button {
            padding: 0.8rem 1.5rem;
            background: #2a3a6e;
            border: none;
            color: #f0f4ff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: #3b5090;
        }
        .search-form button i {
            font-size: 1rem;
        }
        .main-wrap {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-body h2 {
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid #1e2a4a;
            color: #ffd966;
        }
        .content-body h3 {
            font-size: 1.4rem;
            margin: 2rem 0 0.7rem;
            color: #b8d0ff;
        }
        .content-body h4 {
            font-size: 1.15rem;
            margin: 1.5rem 0 0.5rem;
            color: #c8d6ef;
            font-weight: 500;
        }
        .content-body p {
            margin-bottom: 1.1rem;
            color: #d0dcee;
        }
        .content-body p b,
        .content-body p strong {
            color: #f0f4ff;
            font-weight: 600;
        }
        .content-body ul,
        .content-body ol {
            margin-bottom: 1.3rem;
            color: #c8d6ef;
        }
        .content-body li {
            margin-bottom: 0.4rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #141c3a, #1a2348);
            border-left: 4px solid #ffd966;
            padding: 1.5rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .highlight-box i {
            color: #ffd966;
            margin-right: 0.5rem;
        }
        .content-image {
            margin: 2rem 0;
            border-radius: 14px;
            overflow: hidden;
            background: #141c3a;
            padding: 0.5rem;
            border: 1px solid #1e2a4a;
        }
        .content-image img {
            border-radius: 10px;
            width: 100%;
        }
        .content-image figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: #7a92b8;
            padding: 0.6rem 0 0.2rem;
            font-style: italic;
        }
        .data-block {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.8rem 0;
        }
        .data-item {
            background: #0d1225;
            border: 1px solid #1e2a4a;
            border-radius: 12px;
            padding: 1.2rem 1rem;
            text-align: center;
            transition: transform 0.2s, border-color 0.2s;
        }
        .data-item:hover {
            transform: translateY(-3px);
            border-color: #7bb3ff;
        }
        .data-item .number {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffd966;
            display: block;
        }
        .data-item .label {
            font-size: 0.9rem;
            color: #8ba4d4;
            margin-top: 0.25rem;
        }
        .data-item i {
            font-size: 1.4rem;
            color: #7bb3ff;
            margin-bottom: 0.3rem;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #0d1225;
            border: 1px solid #1e2a4a;
            border-radius: 14px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: #ffd966;
            margin-bottom: 0.8rem;
            border-bottom: 1px solid #1e2a4a;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 0.35rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
        }
        .sidebar-card ul li a i {
            font-size: 0.75rem;
            color: #7bb3ff;
        }
        .interaction-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #1e2a4a;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .interaction-card {
            background: #0d1225;
            border: 1px solid #1e2a4a;
            border-radius: 14px;
            padding: 1.8rem;
        }
        .interaction-card h3 {
            font-size: 1.2rem;
            color: #ffd966;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }
        .interaction-card form input,
        .interaction-card form textarea,
        .interaction-card form select {
            padding: 0.7rem 1rem;
            background: #0b0e1a;
            border: 1px solid #1e2a4a;
            border-radius: 8px;
            color: #f0f4ff;
            font-size: 0.95rem;
            transition: border-color 0.25s;
            font-family: inherit;
        }
        .interaction-card form input:focus,
        .interaction-card form textarea:focus,
        .interaction-card form select:focus {
            outline: none;
            border-color: #7bb3ff;
        }
        .interaction-card form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .interaction-card form button {
            padding: 0.7rem 1.5rem;
            background: #2a3a6e;
            border: none;
            border-radius: 8px;
            color: #f0f4ff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .interaction-card form button:hover {
            background: #3b5090;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.15rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.6rem;
            color: #3a4a6e;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffd966;
        }
        .site-footer {
            background: #080b17;
            border-top: 2px solid #1e2a4a;
            padding: 2.5rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-size: 1rem;
            color: #ffd966;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: #8ba4d4;
        }
        .footer-col a:hover {
            color: #ffd966;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            padding: 0.2rem 0;
        }
        friend-link {
            display: block;
            padding: 0.8rem 0;
            border-top: 1px solid #1a1f35;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #7a92b8;
        }
        friend-link a {
            color: #8ba4d4;
            margin: 0 0.25rem;
        }
        friend-link a:hover {
            color: #ffd966;
        }
        .copyright {
            text-align: center;
            font-size: 0.82rem;
            color: #4a5a7a;
            padding-top: 1rem;
            border-top: 1px solid #1a1f35;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
        }
        @media (max-width: 820px) {
            .hero h1 {
                font-size: 2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 640px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0d1225;
                border: 1px solid #1e2a4a;
                border-radius: 12px;
                padding: 0.75rem 0.5rem;
                margin-top: 0.5rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 0.6rem 1rem;
                width: 100%;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .data-block {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .header-inner {
                gap: 0.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 400px) {
            .container {
                padding: 0 0.9rem;
            }
            .data-block {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                border-radius: 16px;
            }
            .search-form button {
                justify-content: center;
                padding: 0.7rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .emoji {
            font-style: normal;
        }
        .text-accent {
            color: #ffd966;
        }
        .text-muted {
            color: #7a92b8;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .items-center {
            align-items: center;
        }