:root{color-scheme:light;--ink:#14232b;--muted:#69757b;--terracotta:#c45c43;--line:#dbe0dd}*{box-sizing:border-box}body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f5f2ec}.login-layout{min-height:100vh;display:grid;grid-template-columns:minmax(350px,1.05fr) minmax(340px,.95fr)}.intro{background:#172a30;color:#f8f5ef;padding:clamp(28px,5vw,72px);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.intro:after{content:"";position:absolute;width:560px;height:560px;right:-240px;bottom:-250px;border:1px solid #ffffff24;border-radius:50%;box-shadow:0 0 0 75px #ffffff07,0 0 0 150px #ffffff06}.brand{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.18em;font-weight:700;position:relative;z-index:1}.brand-mark{display:grid;place-items:center;background:var(--terracotta);width:38px;height:38px;border-radius:11px;color:white;font-size:20px;letter-spacing:0}.intro-copy{position:relative;z-index:1;max-width:560px}.eyebrow{font-size:11px;letter-spacing:.18em;font-weight:800;text-transform:uppercase;color:var(--terracotta)}.intro h1{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(52px,6vw,96px);line-height:1.14;font-weight:600;letter-spacing:-.06em;margin:18px 0 30px}.intro h1 em{font-style:normal;color:#eea88e}.intro p{max-width:360px;font-size:15px;line-height:1.9;color:#c7d2d1}.intro-foot{display:flex;gap:26px;color:#c7d2d1;font-size:12px;letter-spacing:.08em;position:relative;z-index:1}.form-side{display:grid;place-items:center;padding:36px}.login-card{width:min(100%,420px)}h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:36px;margin:13px 0 10px}.login-card p{font-size:14px;color:var(--muted);margin:0 0 35px}.login-card label{display:block;font-weight:700;font-size:13px;margin:20px 0 10px}.login-card input:not([type=hidden]){width:100%;height:52px;border:1px solid var(--line);border-radius:10px;background:white;padding:0 15px;font-size:17px;outline:none}.login-card input:focus{border-color:var(--terracotta);box-shadow:0 0 0 4px #c45c4320}.login-card button{margin-top:27px;width:100%;height:54px;border:0;border-radius:10px;background:var(--terracotta);color:white;font-size:15px;font-weight:800;display:flex;justify-content:center;align-items:center;gap:12px;cursor:pointer}.login-card button:hover{background:#ae4b35}.login-card small{display:block;margin-top:21px;color:var(--muted);line-height:1.6}.error{padding:12px 14px;border:1px solid #e4afa4;background:#fff0ec;border-radius:9px;color:#923722;font-size:13px}@media(max-width:760px){.login-layout{grid-template-columns:1fr}.intro{min-height:280px;padding:26px}.intro h1{font-size:48px;margin:14px 0}.intro p{font-size:13px;margin:0}.intro-foot{display:none}.form-side{padding:42px 22px;align-items:start}.login-card{max-width:430px}.login-card p{margin-bottom:22px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}