/* 用户下载端独立视觉：无后台导航，冷蓝背景、细网格、白色领取卡片。 */
.download-site{--download-accent:#225be9;--download-ink:#132440;min-height:100vh;display:flex;flex-direction:column;background-color:#f5f8fe;background-image:radial-gradient(ellipse at 13% 20%,#e5edff 0,transparent 45%),radial-gradient(ellipse at 89% 78%,#e8f4ff 0,transparent 46%),linear-gradient(#fff9,#fff9);color:var(--download-ink);position:relative;isolation:isolate}
.download-site::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(#aac0e514 1px,transparent 1px),linear-gradient(90deg,#aac0e514 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at center,transparent 12%,#000 100%)}
.download-header{width:min(1200px,100%);margin:0 auto;padding:30px 38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.download-brand{display:inline-flex;align-items:center;gap:12px;font-size:20px;font-weight:700;letter-spacing:.3px}
.download-brand .brand-mark{height:45px;width:45px;display:grid;place-items:center;background:#fff;border:1px solid #dee7fa;border-radius:13px;color:#2865ed;box-shadow:0 4px 12px #294fa109}
.download-brand .icon{width:27px;height:27px;stroke-width:1.6}
.download-brand small{display:block;color:#8291ab;font-size:12px;letter-spacing:1px;font-weight:400;line-height:1.5;margin-top:1px}
.header-label{display:flex;align-items:center;gap:8px;color:#7386a3;font-size:13px}.header-label .icon{width:16px;height:16px}
.download-stage{display:flex;align-items:center;justify-content:center;flex:1;min-height:650px;padding:24px 24px 60px}
.download-stage-content{width:520px;max-width:100%}.download-intro{text-align:center;margin-bottom:22px}
.download-eyebrow{display:inline-block;color:#8294b1;font-size:12px;font-weight:600;letter-spacing:3.5px}
.download-intro p{font-size:14px;color:#6e81a0;margin-top:8px;letter-spacing:.4px}
.download-surface{position:relative}
.download-site .download-card{border:1px solid #e3eaf7;border-radius:24px;background:#fff;box-shadow:0 24px 65px -20px #315fa02b,0 2px 7px #315fa006;padding:35px 40px;overflow:hidden}
.download-site .entry-card{padding:39px 40px 31px;margin-top:0;position:relative}
.download-site .entry-card::before{content:"";position:absolute;left:40px;right:40px;top:0;height:2px;background:linear-gradient(90deg,transparent,#86b1ff,transparent)}
.download-site .feature-icon{width:72px;height:72px;border-radius:21px;background:linear-gradient(145deg,#3c80ff,#265de4);color:#fff;box-shadow:0 12px 24px -9px #255cdd66;border:1px solid #3c75e3;margin:0 auto 24px}
.download-site .feature-icon .icon{width:34px;height:34px;stroke-width:1.8}
.download-site .feature-icon.danger{color:#e7495e;background:#fff0f3;border-color:#ffdde3;box-shadow:none}
.download-site .entry-card h1{font-size:29px;letter-spacing:-.5px;font-weight:650;margin-bottom:10px;line-height:1.4}
.download-site .entry-description{font-size:14px;color:#7a8ba5;margin-bottom:30px;line-height:1.8}
.download-site .stack-form{text-align:left;gap:0}
.download-code-label{font-size:14px;color:#536580;font-weight:500;margin-bottom:10px}
.download-site .stack-form .input-icon{margin-bottom:16px}
.download-site .stack-form input:not([type=radio]){height:55px;background:#f9fbff;border:1px solid #dce5f5;border-radius:10px;font-size:15px;padding-left:45px}
.download-site .stack-form .input-icon>.icon{left:16px;color:#8398b9}
.download-site .stack-form input:focus{background:#fff;border-color:#7fa8ff;box-shadow:0 0 0 4px #2d6df10a}
.download-site .btn-primary{background:linear-gradient(110deg,#2c6bef,#245be6);border:1px solid #245fe3;box-shadow:0 7px 17px -7px #2261e955}
.download-site .btn-primary:hover{background:linear-gradient(110deg,#1e5ad9,#174ccc);border-color:#174ccc;box-shadow:0 9px 20px -7px #2261e977}
.download-site .stack-form .btn{height:52px;border-radius:10px;font-size:15px;letter-spacing:.5px}
.download-site .stack-form .btn .icon{width:17px;height:17px}
.download-site .entry-helper{padding-top:23px;margin-top:25px;border-top:1px solid #edf1f8;color:#8898b0;font-size:12px;line-height:1.8}
.download-assurance{display:flex;justify-content:center;align-items:center;gap:18px;margin-top:26px;color:#8494ad;font-size:12px}
.download-assurance>span{display:flex;align-items:center;gap:6px}.download-assurance .icon{width:15px;height:15px;stroke-width:1.6}.download-assurance i{height:3px;width:3px;border-radius:50%;background:#b7c5db}
.download-footer{display:flex;justify-content:space-between;align-items:center;gap:15px;width:min(1200px,100%);padding:21px 38px;margin:0 auto;font-size:12px;color:#95a3b8;border-top:1px solid #dfe8f17a}
.download-site .detail-card h1{font-size:17px;color:#667e9f;font-weight:500;margin-bottom:23px;letter-spacing:.3px}
.download-site .software-hero{border-bottom:1px solid #e9eff8;margin-bottom:16px;padding-bottom:25px;gap:18px}
.download-site .software-icon{height:78px;width:78px;border-radius:20px;border-width:6px;box-shadow:0 5px 15px #2261e90b}
.download-site .software-hero h2{font-size:23px;line-height:1.4;margin-bottom:7px;letter-spacing:-.4px}
.download-site .download-meta>div{border-top:0;padding:12px 0}.download-site .download-meta dt{font-size:14px;color:#778ba9;gap:9px}.download-site .download-meta dt .icon{width:17px;height:17px;color:#89a2c6}.download-site .download-meta dd{font-size:14px;color:#294264;font-weight:500}.download-site .download-meta dd strong{color:#225be9;font-size:30px;line-height:1}
.download-site .usage-line{border-radius:8px;padding:11px 13px;background:#f6f9ff;margin:8px 0 21px;font-size:12px;color:#7d8fa9}
.download-site .download-button{height:52px;border-radius:10px;font-size:15px}
.download-site .download-secondary .btn{border-radius:8px;border-color:#dfe8f5;color:#6b819f;font-size:12px;min-height:39px;background:#fff}
.download-site .download-secondary .btn:hover{background:#f7faff;color:#2c67d9}
.download-site .download-help{background:#f3f7fe;border:1px solid #e5edf9;border-radius:9px;font-size:12px;color:#8496b2;line-height:1.8;margin-top:21px}
.download-site .notice{border-radius:10px}.download-site .download-surface>.notice{box-shadow:0 6px 15px #3d5e8a09}
.download-site .unavailable-card{text-align:center}.download-site .unavailable-card h1{margin-bottom:20px;font-size:24px}.download-site .unavailable-card>.muted{font-size:14px;line-height:1.8;margin-bottom:24px}.download-site .unavailable-card .btn{height:49px;border-radius:9px}.download-site .unavailable-card .notice{text-align:left}.download-site .error-page{border-radius:24px;box-shadow:0 24px 65px -20px #315fa02b}
@media(min-height:950px){.download-stage{padding-bottom:100px}}
@media(max-width:600px){.download-header{padding:21px 23px}.download-brand{font-size:17px;gap:9px}.download-brand .brand-mark{width:39px;height:39px;border-radius:11px}.download-brand .icon{width:24px;height:24px}.header-label{font-size:12px;gap:5px}.header-label .icon{width:14px;height:14px}.download-stage{min-height:0;padding:25px 20px 40px;align-items:center}.download-intro{margin-bottom:21px}.download-intro p{font-size:14px}.download-eyebrow{font-size:12px;letter-spacing:3px}.download-site .download-card{border-radius:20px;padding:28px 25px}.download-site .entry-card{padding:31px 25px 25px}.download-site .feature-icon{width:63px;height:63px;border-radius:18px;margin-bottom:21px}.download-site .feature-icon .icon{width:30px;height:30px}.download-site .entry-card h1{font-size:25px}.download-site .entry-description{font-size:14px;margin-bottom:25px}.download-site .stack-form input:not([type=radio]){font-size:14px;height:51px}.download-site .stack-form .btn{height:49px}.download-site .entry-helper{font-size:12px;margin-top:22px;padding-top:20px}.download-assurance{gap:11px;font-size:12px;margin-top:22px}.download-assurance>span{gap:4px}.download-assurance .icon{width:13px;height:13px}.download-footer{display:grid;justify-content:center;text-align:center;padding:16px 20px;gap:3px;font-size:12px}.download-site .software-hero h2{font-size:20px}.download-site .software-hero{gap:13px;padding-bottom:23px}.download-site .software-icon{width:67px;height:67px;border-radius:17px}.download-site .software-icon .icon{width:33px;height:33px}.download-site .download-meta dt,.download-site .download-meta dd{font-size:14px}.download-site .download-meta dd strong{font-size:26px}.download-site .usage-line{font-size:12px;padding:10px}.download-site .download-help{font-size:12px}.download-site .download-secondary .btn{font-size:12px;gap:5px}}
@media(max-width:350px){.header-label{display:none}.download-stage{padding-inline:14px}.download-site .download-card{padding-inline:20px}.download-assurance{gap:7px;font-size:12px}.download-site .download-meta>div{align-items:flex-start}.download-site .download-meta dd{max-width:145px}}