/* auth.css - tyhzlk.cc.cd 登录注册样式（参考 tyhapi.cc.cd 风格） */
*{margin:0;padding:0;box-sizing:border-box}
body{min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:1rem;font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:#f2f0ea;color:#1f2933;overflow-x:hidden}
.bg-decor{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(135deg,rgba(255,229,111,.35) 0%,transparent 30%),
    linear-gradient(315deg,rgba(255,159,194,.3) 0%,transparent 28%),
    linear-gradient(45deg,rgba(126,230,196,.26) 0%,transparent 24%),
    #f2f0ea}
.auth-wrap{position:relative;z-index:1;width:100%;max-width:26rem}
.brand-zone{margin-bottom:2rem;text-align:center}
.brand-logo{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;
  margin-bottom:1rem;border-radius:14px;background:#fffdf7;border:1.5px solid rgba(31,41,51,.82);
  box-shadow:3px 3px 0 rgba(31,41,51,.12);font-size:1.5rem;color:#1f2933;font-weight:700}
.brand-title{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;color:#1f2933}
.brand-sub{font-size:.875rem;color:#667085;margin-top:.5rem}
.auth-card{background:#fffdf7;border:1.5px solid rgba(31,41,51,.82);border-radius:18px;
  padding:2rem;box-shadow:5px 5px 0 rgba(31,41,51,.14)}
.field{margin-bottom:1rem}
.field label{display:block;font-size:.8125rem;font-weight:600;color:#1f2933;margin-bottom:.375rem}
.field input{width:100%;padding:.625rem .875rem;border:1.5px solid rgba(31,41,51,.82);border-radius:8px;
  font-size:.9375rem;color:#1f2933;background:#fffdf7;outline:none;transition:all .15s;
  box-shadow:3px 3px 0 rgba(31,41,51,.12)}
.field input:focus{border-color:#14b8a6;box-shadow:3px 3px 0 rgba(20,184,166,.2)}
.btn-main{display:block;width:100%;padding:.7rem 1rem;border:1.5px solid rgba(31,41,51,.82);border-radius:8px;cursor:pointer;
  font-size:.9375rem;font-weight:600;color:#1f2933;margin-top:.25rem;background:#96D9CB;
  box-shadow:3px 3px 0 rgba(31,41,51,.12);transition:all .15s}
.btn-main:hover{transform:translate(-1px,-1px);box-shadow:4px 4px 0 rgba(31,41,51,.14)}
.btn-main:active{transform:translate(1px,1px);box-shadow:2px 2px 0 rgba(31,41,51,.12)}
.btn-main:disabled{opacity:.55;cursor:not-allowed;transform:none}
.alert{display:none;padding:.625rem .875rem;border-radius:8px;font-size:.8125rem;margin-bottom:1rem;
  border:1.5px solid rgba(31,41,51,.82)}
.alert.show{display:block}
.alert-error{background:#ffe5e5;color:#b91c1c}
.alert-ok{background:#d1fae5;color:#047857}
.auth-foot{margin-top:1.5rem;text-align:center;font-size:.875rem;color:#667085}
.auth-foot a{color:#0d9488;font-weight:600;text-decoration:none}
.auth-foot a:hover{text-decoration:underline}
.auth-copy{margin-top:2rem;text-align:center;font-size:.75rem;color:#9ca3af}
/* 注释掉暗色模式，保持整站浅色 wlaicc 风格统一 */