:root{--orange:#f4511e;--orange2:#ff6b2b;--red:#e9383f;--ink:#202124;--muted:#74777d;--line:#e8e8e8;--soft:#f7f7f7}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:#fff}.auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(460px,1.08fr) minmax(520px,.92fr)}.auth-brand{position:relative;overflow:hidden;display:flex;flex-direction:column;padding:48px 64px;color:#fff;background:linear-gradient(145deg,#ff6a25 0,#f24519 47%,#dc2d22 100%)}.auth-brand:before{content:"";position:absolute;width:620px;height:620px;right:-260px;top:-210px;border:1px solid #ffffff26;border-radius:50%;box-shadow:0 0 0 70px #ffffff0a,0 0 0 140px #ffffff08}.auth-brand:after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 55%,#fff0 55.2%),repeating-linear-gradient(0deg,transparent 0 78px,#ffffff0a 79px 80px);pointer-events:none}.brand-lockup{position:relative;z-index:1;display:flex;align-items:center;gap:13px;font-size:24px;font-weight:800;letter-spacing:1px}.brand-mark{display:grid;place-items:center;width:43px;height:43px;border-radius:13px;background:#fff;color:var(--orange);box-shadow:0 8px 24px #99221342;font-weight:900}.brand-copy{position:relative;z-index:1;margin:auto 0;max-width:650px}.eyebrow{font-size:13px;letter-spacing:3px;color:#ffe1d4}.brand-copy h1{margin:19px 0 24px;font-size:clamp(38px,4vw,62px);line-height:1.18;letter-spacing:-2px}.brand-copy p{max-width:570px;margin:0;color:#ffe9df;font-size:18px;line-height:1.9}.market-strip{position:absolute;z-index:0;display:flex;align-items:flex-end;gap:24px;height:250px;left:7%;right:7%;bottom:80px;opacity:.13}.market-strip i{flex:1;max-width:42px;border-radius:7px 7px 0 0;background:#fff;box-shadow:0 -12px 0 -9px #fff}.risk-note{position:relative;z-index:1;margin:0;color:#ffd9ca;font-size:12px}.auth-side{display:grid;place-items:center;padding:45px;background:radial-gradient(circle at 75% 12%,#fff2ec 0,transparent 28%),#fff}.auth-card{width:min(430px,100%)}.auth-card header{margin-bottom:30px}.mobile-brand{display:none}.welcome{color:var(--orange);font-size:14px;font-weight:700}.auth-card h2{margin:8px 0;font-size:32px;line-height:1.3}.auth-card header p{margin:0;color:var(--muted);font-size:14px}.tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);margin-bottom:28px}.tabs button{height:49px;border:0;border-bottom:3px solid transparent;background:transparent;color:#888;font:600 15px inherit;cursor:pointer}.tabs button.active{border-color:var(--orange);color:var(--orange)}form label{display:block;margin:18px 0 8px;color:#4d4f53;font-size:14px;font-weight:600}.field{height:51px;display:flex;align-items:center;border:1px solid #dcdcdc;border-radius:10px;background:#fff;transition:.18s}.field:focus-within{border-color:var(--orange);box-shadow:0 0 0 3px #ff5a1817}.field>span{width:48px;text-align:center;color:#aaa;font-size:13px;border-right:1px solid #eee}.field input{min-width:0;flex:1;height:100%;padding:0 14px;border:0;outline:0;background:transparent;color:#222;font:15px inherit}.field button{height:100%;padding:0 15px;border:0;background:transparent;color:#8a8a8a;font:13px inherit;cursor:pointer}.register-help{margin-top:11px;color:#858585;font-size:12px;line-height:1.6}.auth-error{margin-top:13px;padding:10px 12px;border-radius:8px;background:#fff0f0;color:#cf3038;font-size:13px}.submit{width:100%;height:51px;margin-top:25px;border:0;border-radius:10px;background:linear-gradient(135deg,var(--orange2),var(--orange));color:#fff;box-shadow:0 9px 20px #f4511e35;font:700 16px inherit;cursor:pointer}.submit:hover{filter:brightness(1.04)}.submit:disabled{cursor:wait;opacity:.72}.submit i{display:none;width:16px;height:16px;margin-left:8px;border:2px solid #ffffff66;border-top-color:#fff;border-radius:50%;vertical-align:-3px;animation:spin .7s linear infinite}.submit.loading i{display:inline-block}.auth-card footer{display:flex;justify-content:space-between;gap:15px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line);color:#929292;font-size:11px}.auth-card footer b{color:#5c9c67;font-weight:600}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:850px){.auth-page{display:block}.auth-brand{min-height:220px;padding:28px 25px}.brand-copy{margin:38px 0}.brand-copy h1{font-size:31px;margin:10px 0}.brand-copy p,.market-strip,.risk-note{display:none}.auth-side{padding:35px 22px}.mobile-brand{display:none}.auth-card h2{font-size:27px}}@media(max-width:500px){.auth-brand{display:none}.auth-side{min-height:100vh;padding:28px 20px}.mobile-brand{display:flex;align-items:center;gap:10px;margin-bottom:34px}.mobile-brand .brand-mark{width:38px;height:38px}.auth-card footer{display:grid}}