/* 独立登录页：浅色、单屏、与首页同一套视觉 */
html, body { height: 100%; overflow: hidden; }
body {
  margin: 0; color: #263f52; background:
    radial-gradient(1200px 620px at 8% -10%, rgba(26,175,198,.16), transparent 60%),
    radial-gradient(900px 520px at 96% 8%, rgba(34,116,162,.11), transparent 62%),
    #f2f8fb;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
}
* { box-sizing: border-box; }
a, a:hover, a:focus { text-decoration: none !important; }
.login-screen { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

/* top */
.login-top {
  flex: 0 0 64px; height: 64px; padding: 0 30px; display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,.92); border-bottom: 1px solid #d9e8ef; box-shadow: 0 3px 16px rgba(14,53,75,.05);
  backdrop-filter: blur(12px); z-index: 10;
}
.login-brand { display: flex; align-items: center; gap: 10px; color: #0b2233; }
.login-mark { width: 40px; height: 40px; border-radius: 11px; display: flex; align-items: center; justify-content: center;
  color: #bff6ff; background: linear-gradient(145deg,#0f8ba4,#0b3654); box-shadow: 0 7px 18px rgba(15,120,146,.18); flex: 0 0 auto; }
.login-brand-title { display: block; font-size: 17px; font-weight: 800; letter-spacing: .2px; line-height: 1.25; color: #0b2233; }
.login-brand-sub { display: block; font-size: 9.5px; color: #6d8495; margin-top: 3px; letter-spacing: .3px; }
.login-top-right { display: flex; align-items: center; gap: 18px; }
.login-secure { display: inline-flex; align-items: center; gap: 6px; font-size: 10px; color: #2b7d6b;
  background: #eef9f4; border: 1px solid #ceeadd; border-radius: 999px; padding: 5px 9px; }
.login-secure i { width: 5px; height: 5px; border-radius: 50%; background: #2eaf86; }
.login-back { font-size: 12px; color: #4f6b7d; padding: 7px 10px; border-radius: 7px; }
.login-back:hover { color: #0b8198; background: #eef8fb; }

/* main split */
.login-main {
  flex: 1 1 auto; min-height: 0; width: 100%; max-width: 1180px; margin: 0 auto;
  padding: 34px 42px 20px; display: grid; grid-template-columns: minmax(0,1fr) 450px; gap: 80px; align-items: center;
}
.login-intro { min-width: 0; }
.login-kicker { display: inline-block; font-size: 9px; letter-spacing: 2.3px; color: #0b8198; font-weight: 800; margin-bottom: 16px; }
.login-intro h1 { margin: 0; color: #0b2e43; font-size: 43px; line-height: 1.26; letter-spacing: -1px; font-weight: 800; }
.login-intro h1 em { font-style: normal; color: #0a91a9; }
.login-intro > p { margin: 17px 0 0; max-width: 520px; color: #5e788a; font-size: 13px; line-height: 1.9; }
.login-feature-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; margin-top: 25px; max-width: 560px; }
.login-feature-grid > div { background: rgba(255,255,255,.78); border: 1px solid #d8e8f0; border-radius: 11px; padding: 12px 13px;
  box-shadow: 0 6px 18px rgba(17,55,77,.04); }
.login-feature-grid b { display: block; color: #174158; font-size: 12px; font-weight: 700; margin-bottom: 5px; }
.login-feature-grid span { display: block; color: #7790a0; font-size: 9.5px; line-height: 1.65; }
.login-tip { margin-top: 18px; max-width: 560px; padding: 10px 13px; border-left: 2px solid #18a7ba;
  background: rgba(255,255,255,.7); border-radius: 0 7px 7px 0; color: #718a9b; font-size: 10px; line-height: 1.7; }
.login-tip span { display: inline-block; color: #0b8198; font-weight: 700; margin-right: 7px; }

.login-right { min-width: 0; }
.login-card {
  background: rgba(255,255,255,.96); border: 1px solid #d3e5ee; border-radius: 17px;
  box-shadow: 0 24px 58px rgba(14,53,75,.13); padding: 26px 30px 18px;
  max-height: calc(100vh - 150px); overflow: auto; scrollbar-width: thin;
}
.login-card-hd { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.login-card-kicker { display: block; font-size: 8px; letter-spacing: 2.2px; color: #0b8198; font-weight: 800; margin-bottom: 5px; }
.login-card-hd h2 { margin: 0; color: #0b2e43; font-size: 27px; line-height: 1.2; letter-spacing: -.4px; font-weight: 800; }
.login-card-hd p { margin: 7px 0 0; color: #7d93a2; font-size: 10.5px; }
.login-card .field { margin-top: 16px; }
.login-card .field > span:first-child { font-size: 11px; color: #587183; margin-bottom: 6px; }
.login-card .field input { height: 44px; border-radius: 7px; border-color: #d2e3eb; background: #f8fcfd; color: #173b50; font-size: 13px; }
.login-card .field input:focus { border-color: #20a7bd; box-shadow: 0 0 0 3px rgba(32,167,189,.11); }
.login-card .field input::placeholder { color: #9aadb9; }
.login-card .pw-toggle { top: 8px; color: #6f8798; font-size: 10.5px; }
.login-card .login-row { margin-top: 12px; }
.login-card .remember { font-size: 10.5px; color: #667f90; }
.login-card .remember input { accent-color: #0f9fb5; }
.login-card .link-btn { color: #0b8198; font-size: 10.5px; }
.login-card .login-env-line { margin-top: 4px; }
.login-card .login-env { font-size: 9.5px; color: #8298a7; white-space: normal; }
.login-card .login-error { min-height: 17px; margin-top: 7px; font-size: 11px; color: #b03a3a; }
.login-card .login-submit { height: 46px; margin-top: 7px; border-radius: 7px; font-size: 14px; letter-spacing: 2px;
  border: 1px solid #0c7892; background: linear-gradient(135deg,#0f8ba4,#0d5c7b); color: #fff; font-weight: 800;
  box-shadow: 0 9px 22px rgba(15,120,146,.18); }
.login-card .login-submit:hover { background: linear-gradient(135deg,#18a1ba,#0d6b8b); }
.login-card .captcha-inline { border-color: #d5e6ee; background: #f7fbfd; }
.login-card .captcha-inline-hd { color: #6f8798; }
.login-card .login-captcha-question { background: #f5fafc; border-color: #d5e6ee; color: #173b50; }
.login-card .captcha-slider-tip { color: #7e95a5; }
.login-card-foot { display: flex; justify-content: space-between; gap: 10px; margin-top: 13px; padding-top: 10px; border-top: 1px solid #e4eef3; color: #8a9eac; font-size: 9px; }
.login-card .demo-accounts { margin-top: 14px; padding-top: 10px; }
.login-card .login-theme { display: none !important; }

.login-foot { flex: 0 0 27px; height: 27px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 0 30px; border-top: 1px solid #e0ebf1; background: rgba(255,255,255,.55); color: #8a9eac; font-size: 8.5px; }
.login-foot b { color: #4e7184; }

@media (max-width: 1180px) {
  .login-main { grid-template-columns: minmax(0,1fr) 410px; gap: 40px; padding: 26px 28px 16px; }
  .login-intro h1 { font-size: 36px; }
  .login-feature-grid { grid-template-columns: 1fr; gap: 7px; max-width: 390px; }
  .login-feature-grid > div { padding: 9px 11px; }
  .login-card { padding: 22px 24px 15px; }
}
@media (max-width: 860px) {
  .login-main { display: block; padding: 18px 18px 10px; overflow: auto; }
  .login-intro { display: none; }
  .login-card { max-width: 430px; margin: 0 auto; max-height: none; }
  .login-top { padding: 0 16px; } .login-brand-title { font-size: 14px; } .login-brand-sub { display: none; }
  .login-secure { display: none; } .login-foot { font-size: 7px; padding: 0 16px; }
}


/* 轻量航海装饰 */
.login-main { position: relative; }
.login-main:before, .login-main:after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none; z-index: 0;
  border: 1px solid rgba(27,151,172,.10);
}
.login-main:before { width: 520px; height: 520px; left: -150px; top: 50%; transform: translateY(-50%);
  box-shadow: 0 0 0 58px rgba(27,151,172,.025), 0 0 0 120px rgba(27,151,172,.018); }
.login-main:after { width: 250px; height: 250px; right: 420px; top: 12%; border-color: rgba(27,151,172,.08); }
.login-intro, .login-right { position: relative; z-index: 1; }
.login-card { position: relative; overflow: auto; }
.login-card:before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg,#0f9fb5,#7edce8,#e5f8fb); border-radius: 17px 17px 0 0; }
.login-intro h1 { text-shadow: 0 2px 0 rgba(255,255,255,.6); }
.login-secure { box-shadow: 0 3px 10px rgba(46,175,134,.06); }