/* TurboNet 下载页样式 */
.download-hero{position:relative;padding:148px 0 60px;overflow:hidden;text-align:center;background:radial-gradient(600px 340px at 50% 0%,rgba(249,115,22,0.15),transparent 60%)}
.download-hero h1{font-size:clamp(30px,4.5vw,48px);font-weight:800;color:#fff;line-height:1.2;margin-bottom:14px}
.download-hero h1 .grad{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.download-hero .lead{font-size:16px;color:var(--text-secondary);max-width:600px;margin:0 auto 24px}
.badges{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.badge-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:100px;font-size:12.5px;background:var(--bg-card-hover);border:1px solid var(--border-hover);color:var(--brand-1)}
.badge-pill svg{width:14px;height:14px}
.download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.download-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 22px;text-align:center;transition:all .35s ease}
.download-card:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow)}
.download-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:14px;background:linear-gradient(135deg,rgba(249,115,22,0.16),rgba(239,68,68,0.1));border:1px solid var(--border-hover);display:grid;place-items:center}
.download-icon svg{width:28px;height:28px;color:var(--brand-1)}
.download-card .platform{font-size:17px;font-weight:700;color:#fff;margin-bottom:4px}
.download-card .version{font-size:12px;color:var(--text-tertiary);margin-bottom:14px}
.download-card .meta{display:flex;justify-content:center;gap:10px;font-size:11.5px;color:var(--text-tertiary);margin-bottom:20px;flex-wrap:wrap}
.download-card .btn{width:100%;justify-content:center;font-size:13.5px;padding:11px 16px}
.requirement{background:var(--bg-secondary);border-top:1px solid var(--border)}
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.req-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 24px}
.req-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.req-head .ico{width:40px;height:40px;border-radius:10px;background:var(--bg-card-hover);display:grid;place-items:center}
.req-head .ico svg{width:20px;height:20px;color:var(--brand-1)}
.req-head h3{font-size:16px;font-weight:600;color:#fff}
.req-list{display:flex;flex-direction:column;gap:10px}
.req-list li{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.req-list li:last-child{border-bottom:none}
.req-list .key{color:var(--text-tertiary)}
.req-list .val{color:var(--text-secondary);font-weight:500;text-align:right}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;position:relative;transition:all .35s ease}
.step-card:hover{border-color:var(--border-hover);transform:translateY(-3px)}
.step-num{position:absolute;top:-14px;left:24px;width:32px;height:32px;border-radius:50%;background:var(--gradient);color:#fff;font-weight:700;font-size:15px;display:grid;place-items:center;box-shadow:0 4px 12px rgba(249,115,22,0.4)}
.step-card h3{font-size:16px;font-weight:600;color:#fff;margin:8px 0 8px}
.step-card p{font-size:13px;color:var(--text-tertiary);line-height:1.7}
.mini-faq{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 28px}
.mini-faq h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.mini-faq h3 svg{width:18px;height:18px;color:var(--brand-1)}
.mini-faq ul{display:flex;flex-direction:column;gap:10px}
.mini-faq li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-secondary)}
.mini-faq li svg{width:16px;height:16px;color:var(--brand-1);flex:none;margin-top:2px}
/* ===== 扩充内容区块样式 ===== */
.tutorial-block{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;margin-bottom:24px}
.tutorial-title{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;color:#fff;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.tutorial-icon{width:40px;height:40px;border-radius:10px;background:var(--bg-card-hover);display:grid;place-items:center;flex:none}
.tutorial-icon svg{width:20px;height:20px;color:var(--brand-1)}
.tutorial-steps{display:flex;flex-direction:column;gap:20px}
.tutorial-step{display:flex;gap:16px;align-items:flex-start}
.tutorial-step-num{flex:none;width:32px;height:32px;border-radius:50%;background:var(--gradient);color:#fff;font-weight:700;font-size:14px;display:grid;place-items:center;box-shadow:0 4px 12px rgba(249,115,22,0.35)}
.tutorial-step h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px}
.tutorial-step p{font-size:13.5px;color:var(--text-secondary);line-height:1.8}
.feature-detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-detail-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 22px;transition:all .35s ease}
.feature-detail-card:hover{border-color:var(--border-hover);transform:translateY(-3px);background:var(--bg-card-hover)}
.feature-detail-icon{width:48px;height:48px;border-radius:12px;margin-bottom:16px;background:linear-gradient(135deg,rgba(249,115,22,0.14),rgba(239,68,68,0.08));border:1px solid var(--border-hover);display:grid;place-items:center}
.feature-detail-icon svg{width:24px;height:24px;color:var(--brand-1)}
.feature-detail-card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:10px}
.feature-detail-card p{font-size:13px;color:var(--text-secondary);line-height:1.8}
.changelog-list{display:flex;flex-direction:column;gap:20px}
.changelog-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 26px}
.changelog-version{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.changelog-version .ver{font-size:16px;font-weight:700;color:#fff}
.changelog-version .date{font-size:12.5px;color:var(--text-tertiary)}
.changelog-version .tag{font-size:11px;font-weight:600;padding:3px 10px;border-radius:100px}
.changelog-version .tag.stable{background:rgba(249,115,22,0.15);color:var(--brand-1);border:1px solid var(--border-hover)}
.changelog-version .tag.major{background:rgba(239,68,68,0.15);color:#ef4444;border:1px solid rgba(239,68,68,0.3)}
.changelog-content{display:flex;flex-direction:column;gap:8px}
.changelog-content li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-secondary);line-height:1.7}
.changelog-content .type{flex:none;font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.5px;margin-top:2px}
.changelog-content .type.new{background:rgba(249,115,22,0.18);color:#fb923c}
.changelog-content .type.improve{background:rgba(239,68,68,0.18);color:#f87171}
.changelog-content .type.fix{background:rgba(245,158,11,0.18);color:#fbbf24}
@media (max-width:1024px){.download-grid{grid-template-columns:repeat(2,1fr)}.req-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.feature-detail-grid{grid-template-columns:1fr 1fr}}
@media (max-width:768px){.download-hero{padding:108px 0 48px}.download-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.download-grid{grid-template-columns:1fr}}