/* ================================================================
   小满AI · 登录 / 注册 页样式
   ================================================================ */
:root {
  --primary: #165DFF;
  --primary-600: #0E4BE8;
  --primary-50: #E8F0FF;
  --text: #1D2129;
  --text-2: #4E5969;
  --muted: #86909C;
  --border: #E5E6EB;
  --bg: #F7F8FA;
  --danger: #F53F3F;
  --success: #00B42A;
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.auth-wrap { display: flex; min-height: 100vh; }

/* ---------- 左侧品牌区 ---------- */
.auth-brand {
  position: relative;
  flex: 1 1 46%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 44px 52px;
  color: #fff;
  background:
    radial-gradient(1200px 600px at 10% 0%, rgba(54, 207, 201, .35), transparent 60%),
    radial-gradient(900px 600px at 90% 100%, rgba(114, 46, 209, .38), transparent 55%),
    linear-gradient(150deg, #0B3BC4 0%, #165DFF 52%, #2A7BFF 100%);
  overflow: hidden;
}
.auth-brand::after {
  content: "";
  position: absolute; right: -80px; bottom: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: rgba(255, 255, 255, .07);
}
.brand-logo { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; }
.brand-logo .mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: rgba(255, 255, 255, .18);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; backdrop-filter: blur(6px);
}
.brand-main { position: relative; z-index: 1; }
.brand-main h1 {
  font-size: 34px; line-height: 1.32; margin: 0 0 14px; font-weight: 700; letter-spacing: .5px;
}
.brand-main p { margin: 0; font-size: 14.5px; line-height: 1.8; color: rgba(255, 255, 255, .82); max-width: 400px; }
.brand-points { margin-top: 30px; display: flex; flex-direction: column; gap: 14px; }
.brand-points .pt { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: rgba(255, 255, 255, .92); }
.brand-points .pt i {
  width: 26px; height: 26px; border-radius: 8px; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, .16); font-size: 12px;
}
.brand-foot { position: relative; z-index: 1; font-size: 12px; color: rgba(255, 255, 255, .6); }

/* ---------- 右侧表单区 ---------- */
.auth-form-side {
  flex: 1 1 54%;
  display: flex; align-items: center; justify-content: center;
  padding: 40px 24px;
  background: #fff;
}
.auth-card { width: 100%; max-width: 400px; }
.auth-card h2 { margin: 0 0 6px; font-size: 24px; font-weight: 700; }
.auth-card .sub { margin: 0 0 26px; font-size: 13.5px; color: var(--muted); }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 7px; font-weight: 500; }
.input-wrap { position: relative; }
.input-wrap .lead {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: #B5B9C2; font-size: 14px; pointer-events: none;
}
.input-wrap input {
  width: 100%; height: 44px; padding: 0 42px 0 36px;
  border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; color: var(--text); background: #fff;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.input-wrap input::placeholder { color: #B5B9C2; }
.input-wrap input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, .12);
}
.input-wrap .eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px; border: 0; background: transparent; cursor: pointer;
  color: #B5B9C2; border-radius: 8px;
}
.input-wrap .eye:hover { color: var(--text-2); background: var(--bg); }

.btn-main {
  width: 100%; height: 44px; border: 0; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #3A7BFF);
  color: #fff; font-size: 14.5px; font-weight: 600; cursor: pointer;
  transition: opacity .15s, transform .05s; font-family: inherit;
  margin-top: 4px;
}
.btn-main:hover { opacity: .94; }
.btn-main:active { transform: translateY(1px); }
.btn-main:disabled { opacity: .6; cursor: not-allowed; }

.msg { min-height: 20px; margin: 12px 0 4px; font-size: 13px; }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--success); }

.auth-alt { margin-top: 18px; font-size: 13px; color: var(--muted); text-align: center; }
.auth-alt a { color: var(--primary); text-decoration: none; font-weight: 500; }
.auth-alt a:hover { text-decoration: underline; }

.divider { display: flex; align-items: center; gap: 10px; margin: 22px 0 16px; color: var(--muted); font-size: 12px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.demo-box {
  border: 1px dashed #C9D6F5; background: #F5F8FF;
  border-radius: 10px; padding: 12px 14px; font-size: 12.5px; color: var(--text-2); line-height: 1.9;
}
.demo-box b { color: var(--primary); }
.demo-box .fill {
  border: 0; background: transparent; color: var(--primary);
  font-size: 12.5px; cursor: pointer; text-decoration: underline; padding: 0; font-family: inherit;
}

.agree { display: flex; gap: 8px; align-items: flex-start; font-size: 12.5px; color: var(--muted); margin: 4px 0 2px; }
.agree input { margin-top: 3px; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .auth-brand { display: none; }
  .auth-form-side { padding: 28px 20px; background: #fff; }
  .auth-card { max-width: 420px; }
  .auth-form-side::before {
    content: "小满AI · 电商客服工作台";
    position: fixed; top: 18px; left: 0; right: 0;
    text-align: center; font-size: 13px; color: var(--muted); letter-spacing: .5px;
  }
}