*,
        *::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, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1a2a3a;
            line-height: 1.7;
            padding: 0 0 0 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #004080;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0b1e2e;
            margin-top: 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e2e 0%, #1a3a5a 100%);
            color: #fff;
            padding: 0 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: 1200px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none;
            color: #fff;
        }
        .my-logo i {
            color: #ffcc00;
            font-size: 2rem;
        }
        .my-logo span {
            background: linear-gradient(90deg, #ffcc00, #ff8800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            padding: 0;
            margin: 0;
            align-items: center;
        }
        .nav-list li a {
            color: #e8f0fe;
            padding: 8px 14px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffcc00;
            text-decoration: none;
        }
        .nav-list li a i {
            font-size: 0.9rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: #eaf0f6;
            padding: 10px 0;
            border-bottom: 1px solid #d0dce8;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            font-size: 0.9rem;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: #6a7f94;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2a5a7a;
        }
        .breadcrumb .active {
            color: #0b1e2e;
            font-weight: 600;
        }
        .main-content {
            flex: 1;
            padding: 30px 0 40px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .content-body {
            background: #fff;
            border-radius: 20px;
            padding: 36px 40px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 8px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
            background: linear-gradient(135deg, #0b1e2e, #1a5a8a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 2.4rem;
            margin-bottom: 0.8rem;
            border-bottom: 3px solid #eef4fa;
            padding-bottom: 6px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #1a3a5a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
            color: #2a4a6a;
        }
        .lead {
            font-size: 1.15rem;
            color: #2a4a5a;
            margin-bottom: 1.6rem;
            font-weight: 400;
            background: #f0f6fe;
            padding: 16px 20px;
            border-radius: 12px;
            border-left: 4px solid #ffcc00;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e8f0fe;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #1a4a6a;
            font-weight: 500;
            margin-bottom: 1.2rem;
        }
        .update-badge i {
            color: #ff8800;
        }
        .feature-image-wrap {
            margin: 28px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
        }
        .feature-image-wrap img {
            width: 100%;
            transition: transform 0.4s ease;
        }
        .feature-image-wrap:hover img {
            transform: scale(1.02);
        }
        .feature-image-wrap figcaption {
            background: #f4f8fc;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #3a5a6a;
            font-style: italic;
        }
        .link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .link-list li {
            padding: 8px 0;
            border-bottom: 1px solid #e8eef4;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list li i {
            color: #ff8800;
            width: 18px;
            text-align: center;
        }
        .link-list li a {
            font-weight: 500;
        }
        .form-card {
            background: #f8fafe;
            border-radius: 16px;
            padding: 28px 30px;
            margin-top: 28px;
            border: 1px solid #e0ecf6;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.95rem;
            color: #1a3a4a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d4e0ec;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #ff8800;
            box-shadow: 0 0 0 4px rgba(255, 136, 0, 0.12);
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            background: #ff8800;
            color: #fff;
        }
        .btn:hover {
            background: #e67a00;
            transform: translateY(-1px);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn i {
            font-size: 1.1rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d0d8e0;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffcc00;
        }
        .search-form {
            display: flex;
            gap: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #d4e0ec;
            border-radius: 10px;
            font-size: 0.95rem;
        }
        .search-form input:focus {
            border-color: #ff8800;
            outline: none;
        }
        .search-form button {
            background: #ff8800;
            border: none;
            border-radius: 10px;
            padding: 10px 16px;
            color: #fff;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #e67a00;
        }
        .site-footer {
            background: #0b1e2e;
            color: #c8d8e8;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-inner h4 {
            color: #ffcc00;
            margin-top: 0;
            margin-bottom: 12px;
            font-size: 1.2rem;
        }
        .footer-inner a {
            color: #aac8e0;
        }
        .footer-inner a:hover {
            color: #ffcc00;
        }
        .friend-link {
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.95rem;
        }
        .friend-link:last-child {
            border-bottom: none;
        }
        .friend-link a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .friend-link a i {
            color: #ff8800;
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #8aa0b8;
        }
        .copyright strong {
            color: #ffcc00;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 12px 16px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b1e2e;
                padding: 12px 0 16px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 20px;
                width: 100%;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .nav-wrapper .nav-list {
                width: 100%;
            }
            .content-body {
                padding: 24px 18px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-card {
                padding: 20px 18px;
            }
        }
        @media (max-width: 480px) {
            .content-body {
                padding: 18px 14px;
            }
            h1 {
                font-size: 1.7rem;
            }
            .lead {
                font-size: 1rem;
                padding: 12px 16px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }
        .highlight-box {
            background: #fef8e8;
            border-left: 4px solid #ffcc00;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f0f6fe;
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
            border: 1px solid #dce8f2;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #ff8800;
            display: block;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #3a5a6a;
            font-weight: 500;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: #0b1e2e;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 10px 16px;
            border-bottom: 1px solid #e0e8f0;
        }
        table tr:hover td {
            background: #f4f8fe;
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #e8eef4;
        }
        ::-webkit-scrollbar-thumb {
            background: #b0c8d8;
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #8aa8c0;
        }