:root{color-scheme:dark;font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;background:#050b12;color:#eef8ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 15% 15%,rgba(42,128,183,.26),transparent 35%),radial-gradient(circle at 85% 0,rgba(85,74,202,.2),transparent 34%),linear-gradient(150deg,#050b12,#081622 55%,#0d1020)}button,input{font:inherit}.auth-shell{width:min(1080px,calc(100% - 32px));min-height:100vh;margin:auto;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:38px;padding:42px 0}.brand-panel{padding:28px}.eyebrow{font-size:12px;font-weight:900;letter-spacing:.28em;color:#5bdcff}.brand-panel h1{font-size:clamp(38px,6vw,68px);line-height:1.02;margin:14px 0 20px;max-width:760px}.brand-panel p{max-width:650px;color:#9eb7c8;font-size:17px;line-height:1.8}.feature-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.feature-list span{padding:8px 12px;border:1px solid rgba(103,196,238,.23);border-radius:999px;background:rgba(13,37,53,.62);color:#bfe9ff;font-size:13px}.auth-card{background:rgba(8,22,33,.9);border:1px solid rgba(100,194,237,.24);border-radius:24px;padding:26px;box-shadow:0 28px 80px rgba(0,0,0,.38);backdrop-filter:blur(16px)}.tabs{display:grid;grid-template-columns:1fr 1fr;background:#07131d;padding:5px;border-radius:14px;margin-bottom:24px}.tab{border:0;border-radius:10px;padding:11px;background:transparent;color:#7895a9;font-weight:800;cursor:pointer}.tab.active{background:linear-gradient(135deg,#36bfe7,#5269ff);color:white}.form-panel label{display:block;color:#b5c9d7;font-size:14px;margin:15px 0}.form-panel input{display:block;width:100%;margin-top:8px;padding:13px 14px;border-radius:12px;border:1px solid #29485d;background:#06121c;color:#fff;outline:none}.form-panel input:focus{border-color:#5bdcff;box-shadow:0 0 0 3px rgba(91,220,255,.12)}.form-panel small{display:block;color:#66869b;margin-top:7px;line-height:1.5}.primary{width:100%;border:0;border-radius:12px;padding:13px 16px;background:linear-gradient(135deg,#37bfe8,#5165f2);color:#fff;font-weight:900;cursor:pointer;margin-top:8px}.primary:disabled{opacity:.55;cursor:wait}.hidden{display:none!important}.message{min-height:24px;margin-top:16px;text-align:center;color:#ffbf75;font-size:13px}.footer-links{text-align:center;margin-top:8px}.footer-links a{color:#74cdea;text-decoration:none;font-size:13px}@media(max-width:800px){.auth-shell{grid-template-columns:1fr;gap:10px;padding:24px 0}.brand-panel{padding:16px 6px}.brand-panel h1{font-size:42px}.brand-panel p{font-size:15px}.auth-card{padding:20px}}@media(max-width:480px){.auth-shell{width:calc(100% - 18px)}.brand-panel h1{font-size:34px}.feature-list{display:none}.auth-card{border-radius:18px}}