/* ============================================================
   登录页
   ============================================================ */
.login-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #030810;
}

.login-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 620px at 18% 12%, rgba(16, 96, 170, 0.4), transparent 62%),
    radial-gradient(760px 520px at 82% 78%, rgba(20, 120, 200, 0.28), transparent 60%),
    radial-gradient(600px 600px at 55% 110%, rgba(28, 203, 254, 0.14), transparent 65%),
    linear-gradient(150deg, #04101f 0%, #030a14 45%, #02060c 100%);
}

.login-grid {
  position: absolute;
  inset: -2px;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(92, 168, 226, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 168, 226, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 62% at 42% 40%, #000 8%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 70% 62% at 42% 40%, #000 8%, transparent 76%);
  animation: gridDrift 26s linear infinite;
}
@keyframes gridDrift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(56px, 56px, 0); }
}

.login-glow {
  position: absolute;
  width: 540px;
  height: 540px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
}
.login-glow.a { left: -160px; top: -140px; background: rgba(22, 110, 190, 0.32); }
.login-glow.b { right: -120px; bottom: -180px; background: rgba(26, 140, 220, 0.24); }

.login-skyline {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 42vh;
  min-height: 260px;
  pointer-events: none;
  opacity: 0.85;
  mask-image: linear-gradient(180deg, transparent, #000 30%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%);
}

.sky-car {
  animation: shaftRide 13s cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
  filter: drop-shadow(0 0 6px rgba(28, 203, 254, 0.8));
}
@keyframes shaftRide {
  0% { transform: translateY(0); }
  45% { transform: translateY(-196px); }
  55% { transform: translateY(-196px); }
  100% { transform: translateY(-6px); }
}

.login-scan {  position: absolute;
  left: 0;
  right: 0;
  height: 160px;
  top: -160px;
  background: linear-gradient(180deg, transparent, rgba(28, 203, 254, 0.045), transparent);
  animation: scan 9s linear infinite;
  pointer-events: none;
}
@keyframes scan { to { top: 110%; } }

.login-main {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 72px;
  padding: 46px 56px 40px;
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
}

/* ---------------------------- 左侧介绍 ---------------------------- */
.login-intro {
  flex: 1;
  max-width: 620px;
  animation: introIn 0.8s cubic-bezier(0.2, 0.8, 0.3, 1) both;
}
@keyframes introIn { from { opacity: 0; transform: translateY(22px); } }

.intro-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 34px; }
.intro-brand .logo { filter: drop-shadow(0 0 16px rgba(28, 203, 254, 0.6)); }
.intro-brand .b-name { font-size: 17px; font-weight: 600; letter-spacing: 3px; }
.intro-brand .b-en { font-size: 9px; letter-spacing: 2.6px; color: var(--text-3); margin-top: 4px; }
.intro-brand .ver {
  margin-left: 6px;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid rgba(28, 203, 254, 0.3);
  color: #7fe4ff;
  letter-spacing: 1px;
}

.intro-title {
  font-size: 52px;
  font-weight: 700;
  letter-spacing: 6px;
  line-height: 1.16;
  background: linear-gradient(180deg, #ffffff 8%, #b9eaff 52%, #1ccbfe 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 6px 26px rgba(28, 203, 254, 0.28));
}
.intro-title span { display: block; }
.intro-title .thin {
  font-size: 26px;
  letter-spacing: 9px;
  font-weight: 300;
  margin-top: 12px;
  background: linear-gradient(90deg, #7fe4ff, rgba(127, 228, 255, 0.25));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.intro-desc {
  margin-top: 20px;
  font-size: 13.5px;
  line-height: 2;
  color: #8fa9c4;
  max-width: 460px;
  letter-spacing: 0.3px;
}

.intro-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
  max-width: 520px;
}
.feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid rgba(120, 190, 255, 0.12);
  background: linear-gradient(135deg, rgba(16, 48, 80, 0.42), rgba(8, 22, 38, 0.3));
  backdrop-filter: blur(4px);
  transition: border-color 0.2s, transform 0.2s;
}
.feature:hover { border-color: rgba(28, 203, 254, 0.35); transform: translateY(-2px); }
.feature .fi {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(28, 203, 254, 0.1);
  border: 1px solid rgba(28, 203, 254, 0.2);
  color: var(--cyan);
  flex-shrink: 0;
}
.feature .ft { font-size: 12.5px; color: #c3d7ea; }
.feature .fs { font-size: 10.5px; color: #5f7b99; margin-top: 3px; letter-spacing: 0.4px; }

.intro-stats {
  display: flex;
  gap: 30px;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid rgba(120, 190, 255, 0.1);
  max-width: 520px;
}
.istat .v { font-family: var(--font-num); font-size: 25px; color: #d8f4ff; letter-spacing: 0.5px; }
.istat .v small { font-size: 12px; color: #6f8cab; margin-left: 3px; }
.istat .k { font-size: 11px; color: #5f7b99; margin-top: 5px; letter-spacing: 0.8px; }

/* ---------------------------- 登录卡片 ---------------------------- */
.login-panel {
  width: 408px;
  flex-shrink: 0;
  position: relative;
  padding: 34px 34px 26px;
  border-radius: 16px;
  border: 1px solid rgba(120, 190, 255, 0.2);
  background: linear-gradient(165deg, rgba(13, 32, 54, 0.92), rgba(6, 16, 29, 0.94));
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  animation: panelIn 0.7s cubic-bezier(0.2, 0.8, 0.3, 1) 0.1s both;
}
@keyframes panelIn { from { opacity: 0; transform: translateY(26px) scale(0.985); } }
.login-panel::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(28, 203, 254, 0.9), transparent);
}
.login-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(28, 203, 254, 0.5), transparent 22%) top left / 26px 26px no-repeat,
    linear-gradient(315deg, rgba(28, 203, 254, 0.35), transparent 22%) bottom right / 26px 26px no-repeat;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  padding: 1px;
  opacity: 0.5;
}

.panel-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  letter-spacing: 2.4px;
  color: #5f8bad;
  margin-bottom: 14px;
}
.panel-kicker::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(120, 190, 255, 0.22), transparent); }
.panel-title { font-size: 24px; font-weight: 600; letter-spacing: 2px; }
.panel-desc { font-size: 12.5px; color: var(--text-3); margin-top: 8px; letter-spacing: 0.3px; }

.login-form { margin-top: 26px; display: flex; flex-direction: column; gap: 15px; }

.l-field {
  position: relative;
  display: flex;
  align-items: center;
  height: 48px;
  border-radius: 9px;
  border: 1px solid rgba(120, 190, 255, 0.16);
  background: rgba(4, 14, 26, 0.66);
  padding: 0 12px;
  gap: 10px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.l-field:hover { border-color: rgba(120, 190, 255, 0.3); }
.l-field.focus {
  border-color: rgba(28, 203, 254, 0.65);
  box-shadow: 0 0 0 3px rgba(28, 203, 254, 0.1), inset 0 0 16px rgba(28, 203, 254, 0.05);
  background: rgba(6, 20, 36, 0.8);
}
.l-field.error { border-color: rgba(255, 83, 112, 0.65); animation: shake 0.35s; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}
.l-field .li { color: #5d84a8; flex-shrink: 0; display: flex; transition: color 0.2s; }
.l-field.focus .li { color: var(--cyan); }
.l-field input {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: none;
  background: none;
  outline: none;
  color: #eaf6ff;
  font-size: 14px;
  letter-spacing: 0.4px;
}
.l-field input::placeholder { color: #4d6584; }
.l-field input:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 1000px #061424 inset !important;
  -webkit-text-fill-color: #eaf6ff !important;
}
.l-field .suffix {
  background: none;
  border: none;
  color: #5d84a8;
  cursor: pointer;
  display: flex;
  padding: 4px;
  border-radius: 4px;
}
.l-field .suffix:hover { color: var(--cyan); background: rgba(28, 203, 254, 0.08); }

.l-row { display: flex; align-items: center; justify-content: space-between; margin-top: -3px; }
.check { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--text-2); cursor: pointer; user-select: none; }
.check input { display: none; }
.check .box {
  width: 15px;
  height: 15px;
  border-radius: 4px;
  border: 1px solid rgba(120, 190, 255, 0.35);
  display: grid;
  place-items: center;
  transition: 0.16s;
}
.check .box svg { opacity: 0; transform: scale(0.6); transition: 0.16s; }
.check input:checked + .box { background: linear-gradient(135deg, #1ccbfe, #2e7cff); border-color: transparent; }
.check input:checked + .box svg { opacity: 1; transform: scale(1); color: #03121f; }
.link-quiet { font-size: 12.5px; color: #6f97ba; cursor: pointer; }
.link-quiet:hover { color: var(--cyan); }

.l-submit {
  height: 48px;
  border: none;
  border-radius: 9px;
  background: linear-gradient(135deg, #1ccbfe 0%, #2e7cff 100%);
  color: #02121f;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 6px;
  cursor: pointer;
  margin-top: 4px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(28, 158, 254, 0.3);
  transition: filter 0.2s, transform 0.15s;
}
.l-submit:hover { filter: brightness(1.08); }
.l-submit:active { transform: translateY(1px); }
.l-submit:disabled { opacity: 0.7; cursor: wait; }
.l-submit::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  animation: sheen 3.2s ease-in-out infinite;
}
@keyframes sheen { 0%, 62% { left: -60%; } 100% { left: 130%; } }
.l-submit .spin {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid rgba(2, 18, 31, 0.3);
  border-top-color: #02121f;
  animation: spin 0.7s linear infinite;
  display: inline-block;
  vertical-align: -2px;
  margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.form-msg {
  min-height: 17px;
  font-size: 12px;
  color: #ff8ea1;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: -6px;
}

.l-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #4f6a86;
  font-size: 11px;
  letter-spacing: 1.6px;
  margin: 22px 0 16px;
}
.l-divider::before, .l-divider::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, transparent, rgba(120, 190, 255, 0.18), transparent); }

.demo-accounts { display: flex; flex-direction: column; gap: 9px; }
.demo-title { font-size: 11.5px; color: var(--text-3); display: flex; justify-content: space-between; }
.demo-chips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.demo-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid rgba(120, 190, 255, 0.14);
  background: rgba(120, 190, 255, 0.035);
  cursor: pointer;
  transition: 0.16s;
  text-align: left;
}
.demo-chip:hover { border-color: rgba(28, 203, 254, 0.4); background: rgba(28, 203, 254, 0.07); }
.demo-chip .role-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.demo-chip .txt { display: flex; flex-direction: column; gap: 2px; }
.demo-chip .txt b { font-size: 12px; font-weight: 500; color: var(--text); }
.demo-chip .txt span { font-size: 10.5px; color: var(--text-3); font-family: var(--font-num); letter-spacing: 0.3px; }

.panel-foot { margin-top: 20px; text-align: center; font-size: 11px; color: #47607c; line-height: 1.7; }

/* ---------------------------- 底部条 ---------------------------- */
.login-footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 34px;
  border-top: 1px solid rgba(120, 190, 255, 0.1);
  background: rgba(4, 14, 25, 0.6);
  backdrop-filter: blur(8px);
  font-size: 11.5px;
  color: #5f7b99;
  flex-wrap: wrap;
}
.login-footer .items { display: flex; gap: 22px; flex-wrap: wrap; }
.login-footer .item { display: inline-flex; align-items: center; gap: 7px; }
.login-footer .item svg { color: #4f7a9e; }

@media (max-width: 1180px) {
  .login-main { gap: 40px; padding: 40px 32px; }
  .login-intro { max-width: 480px; }
  .intro-title { font-size: 42px; }
}
@media (max-width: 960px) {
  .login-main { justify-content: center; padding: 32px 20px; }
  .login-intro { display: none; }
  .login-panel { width: 100%; max-width: 420px; }
  .login-footer { justify-content: center; text-align: center; padding: 12px 20px; }
  .login-footer .items { justify-content: center; gap: 14px; }
}