:root{color-scheme:light;--navy:#152b36;--ink:#19343f;--muted:#657d84;--paper:#f5f8f6;--line:#d8e2df;--lime:#b5f665;--teal:#386b69}*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit}.login-shell{min-height:100vh;display:grid;grid-template-columns:1.08fr 1fr}.studio{background:var(--navy);color:#f2f7f3;padding:48px 56px 32px;position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:760px}.brand{display:flex;gap:13px;align-items:center;text-decoration:none;letter-spacing:2px;font-size:17px}.mark{width:43px;height:43px;display:grid;place-items:center;background:var(--lime);color:var(--navy);font-size:29px;font-weight:bold;border-radius:9px}.brand small{display:block;font-size:11px;letter-spacing:2px;margin-top:5px;color:#a5bbb8}.drawing{height:295px;margin:35px 0 15px;display:grid;place-items:center}.court{width:280px;height:175px;border:2px solid #93bab0;position:relative;transform:rotate(-24deg) skew(12deg);background:repeating-linear-gradient(90deg,transparent 0 34px,#ffffff08 34px 35px)}.center{position:absolute;left:40%;top:34%;width:20%;height:32%;border:2px solid var(--lime);border-radius:50%}.half{position:absolute;left:50%;height:100%;border-left:1px solid #93bab0}.court:before,.court:after{content:"";position:absolute;top:25%;width:15%;height:50%;border:1px solid #93bab0}.court:before{left:-1px}.court:after{right:-1px}.stand{position:absolute;width:100%;height:30px;border:1px solid #84a99d;background:repeating-linear-gradient(0deg,#386b6966 0 8px,#93bab0 8px 9px)}.north{top:-45px}.south{bottom:-45px}.intro{margin-top:auto;max-width:490px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--muted);font-weight:600}.studio .eyebrow{color:var(--lime)}h1{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:42px;line-height:1.55;font-weight:500;letter-spacing:1px;margin:20px 0}.intro>p:last-child{font-size:13px;line-height:1.9;color:#a5bbb8;max-width:360px}.studio-note{font-size:10px;letter-spacing:2px;color:#7f9b98;margin-top:40px}.entry{padding:70px 50px 28px;display:flex;flex-direction:column;justify-content:center;align-items:center}.entry-content{width:100%;max-width:390px;margin:auto}h2{font-size:29px;font-weight:600;letter-spacing:-.5px;margin:16px 0}.subtitle{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 24px}label{display:block;font-size:13px;margin:20px 0 9px}input{width:100%;height:49px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink);padding:0 14px;font:inherit;font-size:14px}input::placeholder{color:#8c9e9e}input:focus{outline:2px solid var(--teal);outline-offset:2px}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible{outline:2px solid var(--teal);outline-offset:4px}.password-field{position:relative}.password-field input{padding-right:66px}.password-field button{position:absolute;right:5px;top:5px;height:39px;background:transparent;border:0;color:var(--muted);cursor:pointer;padding:0 12px}.primary{margin-top:28px;width:100%;height:49px;background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;border:0;padding:0 18px;border-radius:5px;font-size:14px;cursor:pointer}.primary:hover{background:var(--teal)}.primary:disabled{opacity:.6;cursor:wait}.help{font-size:11px;line-height:1.8;color:var(--muted);margin:13px 0}.divider{display:flex;align-items:center;gap:15px;color:var(--muted);font-size:11px;margin:27px 0 18px}.divider:before,.divider:after{content:"";height:1px;background:var(--line);flex:1}.oauth{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:5px;padding:15px 18px;text-decoration:none;font-size:13px;background:#fff}.oauth:hover{border-color:var(--teal)}#status{font-size:13px;line-height:1.8;color:#a5422b;min-height:0}#status:empty{display:none}.footnote{color:#81928f;font-size:10px;margin-top:45px;text-align:center}[hidden]{display:none!important}@media(max-width:900px){.studio{padding:35px;min-height:680px}h1{font-size:33px}.entry{padding:45px 30px}.court{width:230px;height:150px}}@media(max-width:640px){.login-shell{display:block}.studio{min-height:0;padding:25px}.drawing,.intro,.studio-note{display:none}.entry{padding:40px 24px 25px;min-height:calc(100vh - 93px)}h2{font-size:26px}.brand{font-size:14px}}