.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--page);padding:40px 20px}.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:44px 36px;box-shadow:0 8px 30px rgba(80,60,40,.08)}.auth-brand{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:22px}.auth-wordmark{color:var(--wm)}.auth-title,.auth-wordmark{font-family:var(--serif);font-size:26px;font-weight:600}.auth-title{color:var(--ink900);text-align:center;margin-bottom:8px}.auth-sub{font-family:var(--serif);font-size:15px;color:var(--ink500);text-align:center;margin-bottom:28px}.auth-tabs{display:flex;background:var(--surface2);border-radius:14px;padding:4px;margin-bottom:24px}.auth-tab{flex:1;border:none;background:transparent;font-size:14.5px;font-weight:600;color:var(--ink400);padding:11px 0;border-radius:11px;cursor:pointer;transition:.15s}.auth-tab.on{background:var(--surface);color:var(--pri);box-shadow:0 1px 4px rgba(80,60,40,.08)}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-row{display:flex;gap:10px}.auth-row .auth-input{flex:1}.auth-input{border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:15px 16px;font-size:15px;color:var(--ink800);outline:none;transition:border-color .15s;width:100%;box-sizing:border-box}.auth-input:focus{border-color:var(--pri)}.auth-btn{background:var(--priBtn);color:#fff;border:none;border-radius:14px;padding:16px;font-size:16px;font-weight:700;cursor:pointer;margin-top:6px;box-shadow:var(--shBtn)}.auth-btn:disabled{opacity:.45;cursor:default}.auth-btn-wx{background:#07c160;box-shadow:none}.auth-btn-sec{background:transparent;color:var(--pri);border:1.6px solid var(--pri);border-radius:12px;padding:0 16px;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap}.auth-btn-sec:disabled{opacity:.45;cursor:default}.auth-err{color:var(--pri);font-size:13.5px;margin:-2px 0 0}.auth-hint{color:var(--ink400);font-size:13px;margin:-4px 0 0}.auth-wechat{align-items:center;text-align:center}.auth-wechat-tip{font-size:14.5px;color:var(--ink500);line-height:1.8;margin-bottom:8px}.auth-legal{font-size:12.5px;color:var(--ink400);text-align:center;margin-top:26px;line-height:1.7}.auth-legal a{color:var(--pri)}.auth-reg{font-size:13px;color:var(--ink400);text-align:center;margin-top:10px}.auth-seg{display:flex;gap:8px;margin-bottom:4px}.auth-seg-btn{flex:1;border:1px solid var(--border);background:var(--surface);color:var(--ink500);font-size:14px;font-weight:600;padding:9px 0;border-radius:10px;cursor:pointer}.auth-seg-btn.on{border-color:var(--pri);color:var(--pri);background:var(--priSofter)}