:root{--ink:#123a34;--muted:#667d78;--teal:#08776d;--line:#d9e8e5;--bg:#f3f8f6;--danger:#b42318;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:linear-gradient(135deg,#e4f5f1,#f8fbfa)}a{text-decoration:none;color:inherit}.auth-header{height:76px;padding:0 max(22px,calc((100% - 1100px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.88);border-bottom:1px solid var(--line)}.auth-header>a:last-child{color:var(--teal);font-size:13px;font-weight:800}.auth-brand{display:flex;align-items:center;gap:11px}.auth-brand>span{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:var(--teal);color:#fff;font-weight:900}.auth-brand strong,.auth-brand small{display:block}.auth-brand small{color:var(--muted);font-size:10px;margin-top:3px}.auth-shell{width:min(1100px,calc(100% - 34px));min-height:calc(100vh - 76px);margin:auto;display:grid;grid-template-columns:1fr 450px;gap:80px;align-items:center}.auth-intro>span,.auth-title>span{color:#2b9388;font-size:11px;font-weight:850;letter-spacing:1.8px}.auth-intro h1{margin:15px 0 18px;font-size:48px;line-height:1.17}.auth-intro p{max-width:520px;color:var(--muted);font-size:15px;line-height:1.8}.auth-points{display:flex;gap:10px;margin-top:28px}.auth-points b{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:11px;color:#47706a}.auth-card{padding:30px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 24px 70px rgba(15,70,62,.13)}.role-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:5px;background:#f0f6f4;border-radius:13px}.role-tabs button{border:0;background:transparent;padding:10px 5px;border-radius:9px;color:var(--muted);font:inherit;font-size:12px;font-weight:800;cursor:pointer}.role-tabs button.active{background:#fff;color:var(--teal);box-shadow:0 3px 12px rgba(15,70,62,.09)}.auth-title{margin:27px 0 20px}.auth-title h2{font-size:27px;margin:8px 0 6px}.auth-title p{margin:0;color:var(--muted);font-size:12px}.auth-card form label{display:grid;gap:8px;margin-bottom:15px;font-size:12px;color:#4c6863}.auth-card input{width:100%;padding:13px;border:1px solid var(--line);border-radius:11px;background:#f9fbfa;font:inherit;color:var(--ink)}.auth-card input:focus{outline:2px solid rgba(8,119,109,.18);border-color:var(--teal)}.submit-auth{width:100%;padding:14px;border:0;border-radius:11px;background:var(--teal);color:#fff;font:inherit;font-weight:850;cursor:pointer}.submit-auth:disabled{opacity:.65}.form-error{min-height:18px;margin:0 0 8px;color:var(--danger);font-size:12px}.register-links{display:flex;justify-content:center;gap:7px;margin-top:18px;color:var(--muted);font-size:12px}.register-links a{color:var(--teal);font-weight:850}.security-note{text-align:center;margin:15px 0 0;color:#82938f;font-size:10px}@media(max-width:850px){.auth-shell{grid-template-columns:1fr;gap:35px;padding:45px 0}.auth-intro{text-align:center}.auth-intro h1{font-size:38px}.auth-intro p{margin-inline:auto}.auth-points{justify-content:center}.auth-card{width:min(450px,100%);margin:auto}}@media(max-width:520px){.auth-header{height:66px}.auth-brand small{display:none}.auth-shell{min-height:calc(100vh - 66px);padding:28px 0}.auth-intro{display:none}.auth-card{padding:22px 17px;border-radius:19px}}