* { margin:0; padding:0; box-sizing:border-box; }
        body {
            font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, sans-serif;
            background: #f4f8fc;
            color: #0a2540;
            line-height: 1.6;
            scroll-behavior: smooth;
        }
        .container { max-width: 80%; margin: 0 auto; padding: 0 40px; }
        .navbar {
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0,80,200,0.06);
            position: sticky; top:0; z-index:100;
            padding: 12px 0;
        }
        .nav-inner {
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; gap: 12px;
        }
        .logo-area {
            display: flex; align-items: center; gap: 8px;
            font-weight: 700; font-size: 1.6rem; color: #0a2540;
            text-decoration: none;
        }
        .logo-area img { height: 40px; width: auto; display: block; }
        .logo-area span { color: #0055dd; }
        .nav-links {
            display: flex; gap: 24px; align-items: center; flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none; font-weight: 500; color: #1d3b5a;
            font-size: 0.92rem; transition: 0.2s; position: relative;
        }
        .nav-links a::after {
            content:''; position:absolute; bottom:-2px; left:0; width:0;
            height:2px; background: #0055dd; transition: width 0.3s;
        }
        .nav-links a:hover::after { width:100%; }
        .nav-links a:hover { color:#0055dd; }
        .btn-nav {
            background: #0055dd; color:#fff !important;
            padding: 8px 24px; border-radius: 40px;
            font-weight:600; font-size:0.85rem;
            box-shadow: 0 4px 16px rgba(0,85,221,0.18);
            transition: all 0.3s;
        }
        .btn-nav::after { display:none !important; }
        .btn-nav:hover { background: #0044bb; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,85,221,0.25); }
        /* 面包屑 */
        .breadcrumb {
            padding: 14px 0 10px;
            background: #ffffff;
            border-bottom: 1px solid rgba(0,85,221,0.04);
            font-size: 0.85rem;
            color: #5a7fa0;
        }
        .breadcrumb a { color: #0055dd; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb .sep { margin: 0 8px; color: #c0d0e0; }
        /* 英雄区 */
        .download-hero {
            padding: 60px 0 50px;
            background: linear-gradient(135deg, #ffffff 0%, #e8f0fe 100%);
            border-bottom: 1px solid rgba(0,85,221,0.04);
        }
        .hero-grid {
            display: flex;
            align-items: center;
            gap: 60px;
            flex-wrap: wrap;
        }
        .hero-left {
            flex: 1.1;
            min-width: 320px;
        }
        .hero-left .badge {
            display: inline-block;
            background: rgba(0,85,221,0.06);
            border: 1px solid rgba(0,85,221,0.08);
            border-radius: 40px;
            padding: 6px 22px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #0055dd;
            margin-bottom: 12px;
        }
        .hero-left h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #0a2540;
            margin-bottom: 10px;
            line-height: 1.1;
        }
        .hero-left h1 .highlight { color: #0055dd; }
        .hero-left p {
            font-size: 1.05rem;
            color: #2f5478;
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-primary {
            background: #0055dd;
            color: #fff;
            border: none;
            padding: 14px 38px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 16px rgba(0,85,221,0.2);
            transition: all 0.3s;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            background: #0044bb;
            box-shadow: 0 8px 28px rgba(0,85,221,0.3);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(0,85,221,0.15);
            color: #1d3b5a;
            padding: 14px 28px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: 0.3s;
            text-decoration: none;
        }
        .btn-outline:hover {
            border-color: #0055dd;
            color: #0055dd;
            background: rgba(0,85,221,0.02);
        }
        .hero-platforms {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 14px;
        }
        .hero-platforms span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #1d3b5a;
            border: 1px solid rgba(0,85,221,0.06);
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }
        .hero-platforms i { color: #0055dd; }
        .hero-right {
            flex: 1.2;
            min-width: 300px;
            display: flex;
            justify-content: flex-end;
        }
        .hero-image-single .img-wrapper {
            background: #ffffff;
            border: 2px solid rgba(0,85,221,0.06);
            border-radius: 24px;
            padding: 10px;
            box-shadow: 0 8px 32px rgba(0,85,221,0.04);
            transition: 0.4s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            max-width: 100%;
            animation: heroFloat 3.5s ease-in-out infinite;
        }
        .hero-image-single .img-wrapper:hover {
            border-color: #0055dd;
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0,85,221,0.06);
        }
        @keyframes heroFloat {
        0% { transform: translateY(0); }
        50% { transform: translateY(-14px); }
        100% { transform: translateY(0); }
        }
        .hero-image-single .img-wrapper img {
            width: 100%;
            max-width: 720px;
            height: auto;
            border-radius: 16px;
            max-height: 400px;
            object-fit: contain;
            background: #fff;
            display: block;
        }
        .section-header { text-align:center; margin-bottom: 36px; }
        .section-badge {
            display:inline-block; background:rgba(0,85,221,0.04);
            border:1px solid rgba(0,85,221,0.06); border-radius:40px;
            padding:4px 20px; font-size:0.8rem; font-weight:600;
            color:#0055dd; margin-bottom:6px;
        }
        .section-title { font-size:2rem; font-weight:700; color:#0a2540; }
        .section-title i { color:#0055dd; margin-right:8px; }
        .section-sub { color:#2f5478; font-size:1rem; }
        /* 客户端下载卡片 */
        .download-clients {
            padding: 70px 0 80px;
            background: #ffffff;
            border-top: 1px solid rgba(0,85,221,0.04);
        }
        .download-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .download-card {
            background: #f7faff;
            border-radius: 20px;
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid rgba(0,85,221,0.04);
            transition: 0.3s;
            box-shadow: 0 2px 12px rgba(0,0,0,0.02);
        }
        .download-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0,85,221,0.10);
            box-shadow: 0 12px 28px rgba(0,85,221,0.06);
        }
        .download-card .icon-wrap {
            font-size: 3.2rem;
            color: #0055dd;
            margin-bottom: 12px;
            display: block;
        }
        .download-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0a2540;
        }
        .download-card .version {
            font-size: 0.75rem;
            color: #5a7fa0;
        }
        .download-card .desc {
            font-size: 0.88rem;
            color: #2f5478;
            margin: 10px 0 16px;
            min-height: 40px;
        }
        .download-card .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #0055dd;
            color: #fff;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.88rem;
            text-decoration: none;
            transition: 0.3s;
            box-shadow: 0 4px 12px rgba(0,85,221,0.1);
        }
        .download-card .btn-download:hover {
            background: #0044bb;
            transform: translateY(-2px);
        }
        .download-card .badge-hot {
            font-size: 0.65rem;
            font-weight: 700;
            color: #0055dd;
            background: rgba(0,85,221,0.04);
            padding: 2px 12px;
            border-radius: 30px;
            display: inline-block;
            margin-bottom: 6px;
        }
        /* 展示图区 */
        .showcase-section {
            padding: 60px 0 70px;
            background: #f7faff;
            border-top: 1px solid rgba(0,85,221,0.04);
            border-bottom: 1px solid rgba(0,85,221,0.04);
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .showcase-image {
            background: #ffffff;
            border-radius: 20px;
            padding: 16px;
            border: 1px solid rgba(0,85,221,0.04);
        }
        .showcase-image img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
        }
        .showcase-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0a2540;
            margin-bottom: 14px;
        }
        .showcase-text h2 i { color: #0055dd; margin-right: 10px; }
        .showcase-text p {
            color: #2f5478;
            font-size: 1rem;
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .showcase-text .feature-list {
            list-style: none;
            margin-top: 10px;
        }
        .showcase-text .feature-list li {
            padding: 8px 0;
            color: #2f5478;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(0,85,221,0.04);
        }
        .showcase-text .feature-list li:last-child { border-bottom: none; }
        .showcase-text .feature-list li i {
            color: #0055dd;
            width: 22px;
            text-align: center;
            flex-shrink: 0;
        }
        /* 版本记录 */
        .version-section {
            padding: 60px 0 70px;
            background: #ffffff;
            border-top: 1px solid rgba(0,85,221,0.04);
        }
        .version-table {
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
            border-collapse: collapse;
            background: #f7faff;
            border-radius: 16px;
            overflow: hidden;
        }
        .version-table th {
            background: #0055dd;
            color: #fff;
            padding: 14px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .version-table td {
            padding: 14px 20px;
            border-bottom: 1px solid rgba(0,85,221,0.04);
            color: #2f5478;
            font-size: 0.9rem;
        }
        .version-table tr:last-child td { border-bottom: none; }
        .version-table tr:hover td { background: rgba(0,85,221,0.02); }
        .version-table .tag {
            display: inline-block;
            background: rgba(0,85,221,0.06);
            color: #0055dd;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .version-table .tag-new { background: rgba(34,197,94,0.1); color: #22c55e; }
        /* 下载须知 */
        .notice-section {
            padding: 60px 0 70px;
            background: #f7faff;
            border-top: 1px solid rgba(0,85,221,0.04);
        }
        .notice-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 30px;
        }
        .notice-item {
            background: #ffffff;
            border-radius: 16px;
            padding: 28px 24px;
            text-align: center;
            border: 1px solid rgba(0,85,221,0.04);
            transition: 0.3s;
        }
        .notice-item:hover { transform: translateY(-4px); border-color: rgba(0,85,221,0.08); }
        .notice-item i { font-size: 2.2rem; color: #0055dd; margin-bottom: 12px; display: block; }
        .notice-item h4 { font-size: 1.05rem; font-weight: 700; color: #0a2540; }
        .notice-item p { font-size: 0.88rem; color: #2f5478; margin-top: 4px; }
        /* FAQ */
        .faq-section { padding:50px 0 70px; background:#ffffff; border-top:1px solid rgba(0,85,221,0.04); }
        .faq-list { display:flex; flex-direction:column; gap:14px; max-width: 900px; margin: 0 auto; }
        .faq-item {
            background:#f7faff; border-radius:16px; padding:20px 26px;
            border:1px solid rgba(0,85,221,0.03); transition:0.3s;
        }
        .faq-item:hover { border-color:rgba(0,85,221,0.06); }
        .faq-item .q {
            font-weight:700; font-size:1rem; color:#0a2540;
            display:flex; align-items:center; gap:12px;
        }
        .faq-item .q i { color:#0055dd; font-size:0.8rem; width:20px; }
        .faq-item .a { margin-top:6px; padding-left:30px; color:#2f5478; font-size:0.95rem; line-height:1.7; }
        .faq-item .a strong { color:#0a2540; }
        .footer {
            background: #0a2540;
            color: rgba(255,255,255,0.7);
            padding: 50px 0 30px;
            border-top: 3px solid #0055dd;
        }
        .footer a { color: rgba(255,255,255,0.6); text-decoration: none; transition: 0.2s; }
        .footer a:hover { color: #ffffff; }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }
        .footer .brand-col .logo {
            font-size: 1.8rem; font-weight:700; color:#fff;
            display:flex; align-items:center; gap:10px; margin-bottom:12px;
        }
        .footer .brand-col .logo i { color:#0055dd; }
        .footer .brand-col .logo span { color:#0055dd; }
        .footer .brand-col p { font-size:0.9rem; line-height:1.7; max-width:340px; }
        .footer .col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 14px; letter-spacing: 0.3px; }
        .footer .col ul { list-style: none; }
        .footer .col ul li { margin-bottom: 8px; }
        .footer .col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: 0.2s; }
        .footer .col ul li a:hover { color: #0055dd; }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
        }
        .footer .footer-bottom .icp {
            color: rgba(255,255,255,0.4);
            text-align: center;
        }
        .footer .footer-bottom .icp a {
            color: rgba(255,255,255,0.4);
            text-decoration: none;
        }
        .footer .footer-bottom .icp a:hover { color: #fff; }
        .footer .footer-bottom .icp .sep { margin: 0 10px; color: rgba(255,255,255,0.15); }

        @media (max-width: 1024px) {
        .container { padding: 0 30px; }
        .hero-grid { flex-direction: column; text-align: center; }
        .hero-left { min-width: unset; }
        .hero-right { min-width: unset; justify-content: center; }
        .hero-left p { margin: 0 auto; }
        .hero-actions { justify-content: center; }
        .hero-platforms { justify-content: center; }
        .hero-image-single .img-wrapper { margin-right: 0; }
        .download-hero h1 { font-size: 2.2rem; }
        .showcase-grid { grid-template-columns: 1fr; text-align: center; }
        .showcase-grid .showcase-image { order: -1; }
        .download-grid { grid-template-columns: 1fr 1fr; }
        .notice-grid { grid-template-columns: 1fr 1fr; }
        .footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
        .container { padding: 0 20px; }
        .nav-inner { flex-direction: column; align-items: center; }
        .nav-links { justify-content: center; gap: 12px; }
        .download-hero { text-align: center; }
        .download-hero p { margin: 0 auto; }
        .download-grid { grid-template-columns: 1fr 1fr; }
        .notice-grid { grid-template-columns: 1fr; }
        .showcase-text .feature-list { text-align: left; }
        .footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        .footer .footer-bottom { flex-direction: column; text-align: center; }
        .version-table { font-size: 0.8rem; }
        .version-table th, .version-table td { padding: 10px 14px; }
        .breadcrumb { text-align: center; }
        }
        @media (max-width: 480px) {
        .container { padding: 0 14px; }
        .download-hero h1 { font-size: 1.8rem; }
        .download-grid { grid-template-columns: 1fr; }
        .download-card { padding: 24px 16px 20px; }
        .btn-primary, .btn-outline { padding: 12px 24px; font-size: 0.9rem; }
        .footer .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
        .footer .brand-col p { max-width: 100%; }
        .showcase-image { margin-bottom: 10px; }
        .showcase-text .feature-list { text-align: left; }
        .version-table { font-size: 0.7rem; }
        .version-table th, .version-table td { padding: 8px 10px; }
        .hero-image-single .img-wrapper img { max-height: 200px; max-width: 280px; }
        }