*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #0b0e14;
            color: #e8edf5;
            line-height: 1.8;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #6db3f2;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #a8d1ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            color: #f0f6ff;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 3rem;
            margin-bottom: 1rem;
            color: #d6e4ff;
            border-bottom: 2px solid #2a3a5a;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #c8d8f0;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #b0c8e8;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1rem;
            color: #dce2ed;
        }
        .text-muted {
            color: #8899b0;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.85rem;
        }
        .site-header {
            background: #141b26;
            border-bottom: 1px solid #2a3a5a;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 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: 1.8rem;
            font-weight: 800;
            color: #f0f6ff;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #6db3f2, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #6db3f2;
            margin-right: 0.3rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid #3a4a6a;
            color: #e8edf5;
            font-size: 1.4rem;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #1f2a3a;
        }
        .main-nav {
            display: flex;
            gap: 1.6rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #b8c8e0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            color: #f0f6ff;
            border-bottom-color: #6db3f2;
            text-decoration: none;
        }
        .main-nav a.active {
            color: #f0f6ff;
            border-bottom-color: #6db3f2;
        }
        .breadcrumb {
            background: #10171f;
            padding: 0.7rem 0;
            border-bottom: 1px solid #1f2a3a;
            font-size: 0.85rem;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #5a7a9a;
        }
        .breadcrumb a {
            color: #7a9aba;
        }
        .breadcrumb a:hover {
            color: #a8d1ff;
        }
        .breadcrumb .current {
            color: #c8d8f0;
            font-weight: 500;
        }
        .hero-image-wrap {
            margin: 2rem 0 1.5rem;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.7);
            background: #1a2535;
        }
        .hero-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .hero-caption {
            padding: 0.8rem 1.2rem;
            background: #141b26;
            font-size: 0.9rem;
            color: #8899b0;
            border-top: 1px solid #2a3a5a;
        }
        .search-section {
            background: #141b26;
            padding: 1.8rem 1.5rem;
            border-radius: 12px;
            margin: 2.5rem 0;
            border: 1px solid #2a3a5a;
        }
        .search-section h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border-radius: 8px;
            border: 1px solid #3a4a6a;
            background: #0b0e14;
            color: #e8edf5;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #6db3f2;
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            border: none;
            border-radius: 8px;
            background: #2a5a8a;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #3a7aba;
            transform: scale(1.02);
        }
        .search-form button i {
            margin-right: 0.4rem;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        @media (max-width:680px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #141b26;
            border: 1px solid #2a3a5a;
            border-radius: 12px;
            padding: 1.5rem 1.8rem;
        }
        .card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.6rem;
        }
        .card form input,
        .card form textarea,
        .card form select {
            padding: 0.6rem 0.9rem;
            border-radius: 6px;
            border: 1px solid #3a4a6a;
            background: #0b0e14;
            color: #e8edf5;
            font-size: 0.95rem;
            outline: none;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .card form input:focus,
        .card form textarea:focus,
        .card form select:focus {
            border-color: #6db3f2;
        }
        .card form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .card form button {
            align-self: flex-start;
            padding: 0.6rem 1.6rem;
            border: none;
            border-radius: 6px;
            background: #2a5a8a;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .card form button:hover {
            background: #3a7aba;
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #4a5a7a;
            cursor: default;
        }
        .star-rating i {
            transition: color 0.2s;
        }
        .star-rating i.active {
            color: #f5b342;
        }
        .star-rating i:hover {
            color: #f5b342;
        }
        .article-content {
            padding: 1.5rem 0 2.5rem;
        }
        .article-content .highlight {
            background: #1a2535;
            border-left: 4px solid #6db3f2;
            padding: 1rem 1.4rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .article-content .highlight p:last-child {
            margin-bottom: 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #10171f;
            border-radius: 8px;
            overflow: hidden;
        }
        .table-wrap th,
        .table-wrap td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #2a3a5a;
        }
        .table-wrap th {
            background: #1a2535;
            color: #b0c8e8;
            font-weight: 600;
        }
        .table-wrap tr:hover td {
            background: #1a2638;
        }
        .stat-badge {
            display: inline-block;
            background: #1a2a4a;
            color: #8ab8f0;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .inline-icon {
            margin-right: 0.3rem;
            color: #6db3f2;
        }
        friend-link {
            display: block;
            background: #141b26;
            border: 1px solid #2a3a5a;
            border-radius: 10px;
            padding: 1.2rem 1.6rem;
            margin: 1.5rem 0;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
            padding: 0.2rem 0.6rem;
            background: #1f2a3a;
            border-radius: 4px;
            font-size: 0.9rem;
            color: #b0c8e8;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #2a3a5a;
            text-decoration: none;
            color: #f0f6ff;
        }
        .site-footer {
            background: #0d121c;
            border-top: 1px solid #2a3a5a;
            padding: 2rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .footer-inner .copyright {
            font-size: 0.85rem;
            color: #5a7a9a;
        }
        .footer-inner .copyright i {
            margin-right: 0.3rem;
        }
        @media (max-width:768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            h4 {
                font-size: 1.05rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.6rem;
                padding: 0.8rem 0 0.4rem;
                border-top: 1px solid #2a3a5a;
                margin-top: 0.6rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.4rem 0;
                font-size: 1rem;
            }
            .breadcrumb ul {
                font-size: 0.78rem;
                gap: 0.2rem 0.6rem;
            }
            .hero-image-wrap {
                margin: 1.2rem 0 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input[type="text"] {
                min-width: unset;
            }
            .interaction-grid {
                gap: 1rem;
            }
            .card {
                padding: 1.2rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width:480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .stat-badge {
                font-size: 0.7rem;
                padding: 0.15rem 0.6rem;
            }
            .table-wrap {
                font-size: 0.8rem;
            }
            .table-wrap th,
            .table-wrap td {
                padding: 0.5rem 0.6rem;
            }
            .star-rating {
                font-size: 1.3rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 1.8rem;
            right: 1.8rem;
            background: #2a5a8a;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            cursor: pointer;
            border: none;
            z-index: 999;
            transition: background 0.2s, transform 0.2s;
            opacity: 0.7;
        }
        .scroll-top:hover {
            background: #3a7aba;
            transform: scale(1.05);
            opacity: 1;
        }
        @media (max-width:480px) {
            .scroll-top {
                width: 38px;
                height: 38px;
                font-size: 1rem;
                bottom: 1rem;
                right: 1rem;
            }
        }
        .mt-1 {
            margin-top: 0.8rem;
        }
        .mt-2 {
            margin-top: 1.6rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .mb-2 {
            margin-bottom: 1.6rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .gap-1 {
            gap: 0.6rem;
        }
        .no-wrap {
            white-space: nowrap;
        }