:root{--blue:#0865aa;--deep:#07589a;--ink:#747b81;--line:#e1e6e9;--paper:#fff;--shadow:0 12px 28px rgba(40,70,90,.13)}
*{box-sizing:border-box}
html{background:#edf2f5}
body{margin:0;color:#222;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}
.page-shell{width:100%;max-width:750px;min-height:100vh;margin:0 auto;background:#f7f9fa;overflow:hidden}
.page-header{height:79px;display:flex;align-items:center;justify-content:center;background:#fff;color:#111;font-size:27px;letter-spacing:1px}
.hero{height:min(62.67vw,470px);background:#0862a5;overflow:hidden}
.hero img{display:block;width:100%;height:auto}
.floating-card{position:relative;z-index:2;width:88%;margin:max(-94px,-12.53vw) auto 42px;border-radius:27px;background:#fff;box-shadow:var(--shadow)}
.form-card{padding:39px 35px 31px}
.form-card h1{display:flex;align-items:center;justify-content:center;gap:11px;margin:0 0 35px;color:#0765ab;font-size:27px;line-height:1.25;font-weight:700;white-space:nowrap}
.form-card h1 span{width:63px;height:1px;background:#2297dd}
.form-card h1 b{font-size:13px}
.svg-symbols{position:absolute;width:0;height:0;overflow:hidden}
form{display:grid;grid-template-columns:minmax(0,1fr);width:100%;min-width:0;gap:22px}
.field{position:relative;width:100%;min-width:0;height:83px;display:flex;align-items:center;margin:0;padding:0;overflow:hidden;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);text-align:left}
.field svg{flex:0 0 auto;width:35px;height:35px;margin:0 22px;fill:none;stroke:#7a8085;stroke-width:1.45;stroke-linecap:round;stroke-linejoin:round}
.field input,.field select{width:0;min-width:0;flex:1 1 0;height:100%;padding:0 20px 0 0;border:0;outline:0;overflow:hidden;background:transparent;color:#555;font-size:20px;text-overflow:ellipsis;white-space:nowrap}
.field input::placeholder{color:#7e8185;opacity:1}
.field select{appearance:none;color:#7e8185}
.field i{flex:none;margin-right:24px;color:#73797d;font-size:42px;line-height:1;font-style:normal;font-weight:300}
.region-trigger{cursor:pointer}
.region-trigger span{flex:1;font-size:20px;color:#7e8185}
.region-trigger.has-value span{color:#555}
.form-error{min-height:18px;margin:-7px 0 -7px;color:#d9363e;text-align:center;font-size:15px}
.form-actions{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:25px;margin-top:2px}
.button{min-width:0;height:70px;padding:0 8px;display:flex;align-items:center;justify-content:center;border:2px solid #0870bd;border-radius:9px;text-decoration:none;font-size:25px;font-weight:700;letter-spacing:2px;white-space:nowrap;cursor:pointer}
.button.ghost{color:#0670bc;background:#fff}
.button.primary{border-color:#0870bd;color:#fff;background:linear-gradient(135deg,#1187d5,#075a9f);box-shadow:0 6px 14px rgba(5,95,166,.18)}
.button:disabled{opacity:.62}
.site-footer{padding:31px 49px 27px;color:#fff;background:#0864a9}
.site-footer h2{display:flex;align-items:center;justify-content:center;gap:25px;margin:0 0 25px;font-size:27px;letter-spacing:2px}
.site-footer h2 span{width:124px;height:2px;background:#68b2df}
.partners{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.partners div{height:126px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:1px solid rgba(151,210,241,.65);border-radius:10px}
.partners img{width:75px;height:75px;object-fit:contain;border-radius:50%}
.partners small{font-size:17px;white-space:nowrap}
.contact{display:flex;align-items:flex-start;gap:9px;margin-top:26px;font-size:19px;line-height:1.7}
.contact+.contact{margin-top:6px}
.contact-icon{font-size:27px;line-height:1.2}
.copyright{margin-top:20px;padding-top:20px;border-top:1px dashed rgba(255,255,255,.7);text-align:center;font-size:20px}
.picker-mask{position:fixed;z-index:20;inset:0;background:rgba(0,0,0,.42)}
.picker-mask[hidden]{display:none}
.picker-panel{position:absolute;left:50%;bottom:0;width:min(100%,750px);padding-bottom:max(22px,env(safe-area-inset-bottom));background:#fff;border-radius:18px 18px 0 0;transform:translateX(-50%)}
.picker-panel header{height:58px;display:grid;grid-template-columns:80px 1fr 80px;align-items:center;border-bottom:1px solid #eee;text-align:center}
.picker-panel header button{height:100%;border:0;background:none;color:#0871bd;font-size:16px}
.picker-panel header strong{font-size:17px}
.picker-selects{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:24px 16px}
.picker-selects select{width:100%;height:48px;padding:0 8px;border:1px solid #d9e0e5;border-radius:8px;background:#fff;color:#333;font-size:15px}
.result-card{min-height:650px;padding:52px 38px;margin-top:max(-94px,-12.53vw);text-align:center}
.result-card h2{margin:0;color:#0765ab;font-size:34px;letter-spacing:8px}
.qr-frame{width:360px;max-width:88%;aspect-ratio:1;margin:70px auto 18px;padding:18px;background:#fff}
.qr-frame img{display:block;width:100%;height:100%;object-fit:contain}
.invite-code{font-size:34px;font-weight:800;letter-spacing:3px;color:#333}
.result-tip{height:92px;display:flex;align-items:center;justify-content:center;gap:18px;margin-top:48px;border-radius:9px;color:#fff;background:linear-gradient(135deg,#1187d5,#075a9f);font-size:28px;font-weight:700;letter-spacing:3px}
.result-tip span{font-size:38px}
@media(max-width:600px){
  .page-header{height:66px;font-size:22px}.floating-card{width:92%;border-radius:24px}.form-card{padding:34px 25px 26px}.form-card h1{gap:7px;margin-bottom:31px;font-size:22px;white-space:normal}.form-card h1 span{width:35px}.field{height:68px}.field svg{width:27px;height:27px;margin:0 17px}.field input,.field select,.region-trigger span{font-size:16px}.field i{margin-right:17px}.form-actions{gap:14px}.button{height:61px;font-size:20px}.site-footer{padding:30px 24px 25px}.site-footer h2 span{width:82px}.partners{gap:8px}.partners div{height:112px}.partners img{width:64px;height:64px}.partners small{font-size:14px}.contact{font-size:17px}.copyright{font-size:18px}
}
@media(max-width:410px){
  .page-header{height:54px;font-size:19px}.form-card{padding:28px 17px 24px}.form-card h1{font-size:20px}.form-card h1 span{width:24px}form{gap:16px}.field{height:64px}.field svg{width:25px;height:25px;margin:0 14px}.field input,.field select,.region-trigger span{font-size:15px}.field i{margin-right:14px;font-size:34px}.form-actions{gap:10px}.button{height:56px;font-size:19px}.site-footer{padding:26px 18px 24px}.site-footer h2{font-size:23px}.site-footer h2 span{width:58px}.partners{gap:5px}.partners div{height:92px;border-radius:8px}.partners img{width:48px;height:48px}.partners small{font-size:11px}.contact{font-size:14px}.contact-icon{font-size:20px}.copyright{font-size:16px}.result-card{min-height:530px;padding:37px 20px}.result-card h2{font-size:24px;letter-spacing:5px}.qr-frame{margin-top:44px}.result-tip{height:68px;font-size:20px}
}