/**
 * NaiveAdmin 风格 · 登录 / 入口页
 */
:root {
  --na-primary: #18a058;
  --na-primary-hover: #36ad6a;
  --na-info: #2080f0;
  --na-text: #333639;
  --na-text-2: #51545a;
  --na-text-3: #9ca3af;
  --na-border: #e0e0e6;
  --na-radius: 12px;
  --na-font: v-sans, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  width: 100%; height: 100%; margin: 0; padding: 0;
  font-family: var(--na-font);
  color: var(--na-text);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  background: #0b1220;
  overflow-x: hidden;
}

.na-login-bg {
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 15% 20%, rgba(24, 160, 88, .28) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 75%, rgba(32, 128, 240, .2) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(99, 102, 241, .1) 0%, transparent 60%),
    linear-gradient(160deg, #0b1220 0%, #111827 50%, #0f172a 100%);
}

.na-login-wrap {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 40px;
}

.na-back {
  position: absolute; top: 20px; left: 20px;
  color: rgba(255, 255, 255, .7);
  text-decoration: none;
  font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color .2s;
}
.na-back:hover { color: #fff; }

.na-brand {
  text-align: center;
  color: #fff;
  margin-bottom: 28px;
}

.na-brand-icon {
  width: 64px; height: 64px;
  margin: 0 auto 14px;
  border-radius: 16px;
  background: linear-gradient(135deg, #18a058, #36ad6a);
  box-shadow: 0 12px 32px rgba(24, 160, 88, .35);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff;
}

.na-brand h1 {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 1px;
}

.na-brand .sub {
  margin: 0;
  opacity: .65;
  font-size: 13px;
  letter-spacing: .5px;
}

.na-login-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, .97);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .08);
}

.na-login-card .card-head {
  padding: 28px 24px 18px;
  text-align: center;
  background: linear-gradient(135deg, rgba(24, 160, 88, .08), rgba(32, 128, 240, .06));
  border-bottom: 1px solid #f0f0f5;
}

.na-login-card .card-head.agent {
  background: linear-gradient(135deg, rgba(32, 128, 240, .08), rgba(24, 160, 88, .06));
}

.na-login-card .role-icon {
  width: 52px; height: 52px;
  margin: 0 auto 12px;
  border-radius: 14px;
  background: linear-gradient(135deg, #18a058, #36ad6a);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 8px 20px rgba(24, 160, 88, .25);
}

.na-login-card .role-icon.agent {
  background: linear-gradient(135deg, #2080f0, #4098fc);
  box-shadow: 0 8px 20px rgba(32, 128, 240, .25);
}

.na-login-card .card-head h2 {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 600;
  color: var(--na-text);
}

.na-login-card .card-head span {
  font-size: 13px;
  color: var(--na-text-3);
}

.na-login-card .card-body {
  padding: 24px 28px 28px;
}

.na-field {
  margin-bottom: 16px;
  position: relative;
}

.na-field .fa-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #bbb;
  font-size: 15px;
  z-index: 1;
}

.na-field input[type="text"],
.na-field input[type="password"] {
  width: 100%;
  height: 42px;
  padding: 0 14px 0 40px;
  border: 1px solid var(--na-border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--na-text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  background: #fff;
}

.na-field input:focus {
  border-color: var(--na-primary);
  box-shadow: 0 0 0 3px rgba(24, 160, 88, .12);
}

.na-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--na-text-2);
  cursor: pointer;
  user-select: none;
}

.na-check input {
  width: 15px; height: 15px;
  accent-color: var(--na-primary);
  cursor: pointer;
}

.na-login-btn {
  width: 100%;
  height: 42px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #18a058, #36ad6a);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  letter-spacing: 1px;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
  box-shadow: 0 6px 16px rgba(24, 160, 88, .3);
}

.na-login-btn:hover { opacity: .92; }
.na-login-btn:active { transform: scale(.98); }

.na-login-btn.agent {
  background: linear-gradient(135deg, #2080f0, #4098fc);
  box-shadow: 0 6px 16px rgba(32, 128, 240, .3);
}

.na-login-hint {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--na-text-3);
  line-height: 1.7;
}

.na-login-hint a {
  color: var(--na-primary);
  text-decoration: none;
}
.na-login-hint a:hover { text-decoration: underline; }

.na-footer {
  margin-top: 28px;
  color: rgba(255, 255, 255, .4);
  font-size: 12px;
  text-align: center;
}

/* 入口页卡片 */
.na-entry-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  width: 100%;
  max-width: 720px;
  margin-bottom: 24px;
}

.na-entry {
  flex: 1 1 260px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  border-radius: 14px;
  text-decoration: none !important;
  color: #fff !important;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .25);
  transition: transform .22s, box-shadow .22s;
  cursor: pointer;
}

.na-entry:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, .32);
}

.na-entry.dev {
  background: linear-gradient(135deg, #18a058 0%, #0c7a43 100%);
}

.na-entry.agent {
  background: linear-gradient(135deg, #2080f0 0%, #1060c9 100%);
}

.na-entry .icon-box {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .2);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.na-entry .txt h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 600;
}

.na-entry .txt span {
  font-size: 12px;
  opacity: .88;
}

.na-entry .arrow {
  margin-left: auto;
  font-size: 18px;
  opacity: .7;
}

.na-intro {
  width: 100%;
  max-width: 720px;
  background: rgba(255, 255, 255, .97);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
  padding: 28px 32px;
}

.na-intro h2 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--na-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.na-intro h2 i { color: var(--na-primary); }

.na-intro p {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--na-text-2);
}

.na-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f5;
}

.na-features .item {
  flex: 1 1 130px;
  text-align: center;
  padding: 14px 10px;
  border-radius: 10px;
  background: #f7faf8;
  color: var(--na-text-2);
  font-size: 13px;
}

.na-features .item i {
  display: block;
  font-size: 22px;
  margin-bottom: 8px;
  color: var(--na-primary);
}

.na-features .item.blue i { color: var(--na-info); }

@media (max-width: 600px) {
  .na-brand h1 { font-size: 22px; }
  .na-intro { padding: 22px 18px; }
  .na-entry { flex: 1 1 100%; }
}