/* 登录页 — 参考充电云：左示意 + 右白卡，浅蓝底适配 LED */

.login-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  --login-accent: #2563eb;
  --login-accent-soft: #3b82f6;
  --login-sky: #3b82f6;
  --text: #1e293b;
  --muted: #64748b;
  --on-accent: #ffffff;
  color: var(--text);
  background:
    radial-gradient(ellipse 70% 55% at 88% 18%, rgba(59, 130, 246, 0.28), transparent 58%),
    radial-gradient(ellipse 55% 48% at 12% 82%, rgba(30, 64, 175, 0.42), transparent 55%),
    linear-gradient(135deg, #2563eb 0%, #1d4ed8 48%, #0a2f6b 100%);
  /* 尺寸 token */
  --login-w: clamp(360px, 26vw, 440px);
  --login-pad-x: clamp(28px, 2.2vw, 40px);
  --login-pad-y: clamp(32px, 3vh, 44px);
  --login-gap: clamp(14px, 1.2vw, 20px);
  --login-logo: clamp(80px, 6.5vw, 110px);
  --login-title: clamp(28px, 2.2vw, 40px);
  --login-label: clamp(13px, 0.85vw, 14px);
  --login-input-h: clamp(44px, 3vw, 48px);
  --login-input-fs: clamp(14px, 0.9vw, 15px);
  --login-btn-fs: clamp(15px, 1vw, 16px);
  --login-radius: 12px;
}

/* 隐藏全局深色底/扫描线 */
.login-body .grid-bg,
.login-body .scanline {
  display: none !important;
}

/* 背景几何装饰 */
.login-deco {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.login-deco-shape {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
}

.login-deco-shape--1 {
  width: min(180px, 14vw);
  height: min(180px, 14vw);
  top: 12%;
  right: 38%;
  border-radius: 28px;
  transform: rotate(-18deg);
}

.login-deco-shape--2 {
  width: min(120px, 10vw);
  height: min(120px, 10vw);
  bottom: 18%;
  right: 8%;
  border-radius: 50%;
  border-width: 3px;
  opacity: 0.7;
}

.login-deco-shape--3 {
  width: min(90px, 8vw);
  height: min(90px, 8vw);
  top: 22%;
  left: 32%;
  border-radius: 16px;
  transform: rotate(12deg);
  opacity: 0.55;
}

.login-deco-shape--4 {
  width: min(60px, 5vw);
  height: min(60px, 5vw);
  bottom: 28%;
  left: 8%;
  border-radius: 50%;
  opacity: 0.5;
}

.login-deco-shape--5 {
  width: min(140px, 11vw);
  height: min(140px, 11vw);
  top: 8%;
  left: 18%;
  border-radius: 50%;
  border-style: dashed;
  opacity: 0.35;
}

/* 顶栏品牌：Logo + 第二行（系统名称） */
.login-brand-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(18px, 2.2vh, 28px) clamp(24px, 3vw, 48px);
}

.login-brand-logo {
  width: var(--login-logo);
  height: var(--login-logo);
  object-fit: contain;
  border: none;
  padding: 0;
}

.login-brand-unit {
  color: #fff;
  font-size: var(--login-title);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-shadow: 0 1px 8px rgba(15, 23, 42, 0.15);
  line-height: 1.35;
  white-space: nowrap;
}

.login-brand-unit.hidden {
  display: none !important;
}

/* 主体：左示意 + 右登录 */
.login-stage {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 64px);
  padding: 0 clamp(24px, 4vw, 64px) clamp(32px, 4vh, 56px);
  min-height: 0;
}

.login-hero {
  flex: 1 1 62%;
  max-width: 920px;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: login-enter 0.75s ease-out both;
}

.login-hero-svg {
  width: 100%;
  max-width: 900px;
  height: auto;
  filter: drop-shadow(0 12px 28px rgba(15, 23, 42, 0.12));
}

.login-hero-node-float {
  animation: login-node-float 5.5s ease-in-out infinite;
}

.login-hero-node--face .login-hero-node-float { animation-delay: 0.35s; }
.login-hero-node--vehicle .login-hero-node-float { animation-delay: 0.7s; }
.login-hero-node--alert .login-hero-node-float { animation-delay: 0s; }

@keyframes login-node-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.login-hero-links path {
  animation: login-link-dash 12s linear infinite;
}

@keyframes login-link-dash {
  to { stroke-dashoffset: -120; }
}

/* 登录卡 */
.login-wrap {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  width: 100%;
  max-width: var(--login-w);
  margin-right: clamp(48px, 8vw, 140px);
  animation: login-enter 0.75s ease-out 0.12s both;
}

@keyframes login-enter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-card {
  padding: var(--login-pad-y) var(--login-pad-x);
  border-radius: var(--login-radius);
  background: #ffffff;
  border: none;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.14);
}

.login-welcome {
  margin: 0;
  font-size: clamp(22px, 1.6vw, 28px);
  font-weight: 600;
  color: #0f172a;
  letter-spacing: 0.04em;
}

.login-sub {
  margin: 8px 0 0;
  font-size: var(--login-label);
  color: var(--muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--login-gap);
  margin-top: clamp(22px, 2.4vh, 32px);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field span {
  font-size: var(--login-label);
  color: var(--muted);
  letter-spacing: 0.04em;
}

.field input {
  height: var(--login-input-h);
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  color: var(--text);
  font-size: var(--login-input-fs);
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.field input::placeholder {
  color: #94a3b8;
}

.field input:focus {
  border-color: var(--login-accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.captcha-row__inner {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.captcha-row__inner input {
  flex: 1;
  min-width: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.captcha-img-btn {
  flex: 0 0 auto;
  width: 132px;
  height: var(--login-input-h);
  padding: 0;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.captcha-img-btn:hover {
  border-color: var(--login-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.captcha-img-btn img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.login-error {
  margin: 0;
  font-size: var(--login-label);
  color: #dc2626;
  text-align: center;
}

.btn-login {
  position: relative;
  height: var(--login-input-h);
  margin-top: 6px;
  border: none;
  border-radius: 8px;
  background: var(--login-accent);
  color: var(--on-accent);
  font-size: var(--login-btn-fs);
  font-weight: 600;
  letter-spacing: 0.12em;
  cursor: pointer;
  overflow: hidden;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.28);
}

.btn-login::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 35%,
    rgba(255, 255, 255, 0.22) 48%,
    transparent 62%
  );
  transform: translateX(-120%);
  transition: transform 0.55s ease;
}

.btn-login:hover:not(:disabled) {
  background: var(--login-accent-soft);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.32);
}

.btn-login:hover:not(:disabled)::after {
  transform: translateX(120%);
}

.btn-login:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-login span {
  position: relative;
  z-index: 1;
}

.login-download {
  margin: 16px 0 0;
  text-align: center;
}

.login-download a {
  display: inline-block;
  font-size: var(--login-label);
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.04em;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  transition: background 0.2s, border-color 0.2s;
}

.login-download a:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.hidden { display: none !important; }

/* SVG 轻动效 */
.login-scene-alert-dot {
  animation: login-alert-blink 1.8s ease-in-out infinite;
}

@keyframes login-alert-blink {
  0%, 100% { opacity: 0.95; }
  50% { opacity: 0.3; }
}

.login-scene-scan {
  transform-box: fill-box;
  transform-origin: center;
  animation: login-face-scan 3.2s ease-in-out infinite;
}

@keyframes login-face-scan {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(36px); opacity: 0.85; }
}

.login-scene-car {
  animation: login-car-crawl 7s ease-in-out infinite;
}

@keyframes login-car-crawl {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(16px); }
}

@media (prefers-reduced-motion: reduce) {
  .login-hero,
  .login-wrap,
  .login-hero-node-float,
  .login-hero-links path,
  .login-scene-alert-dot,
  .login-scene-scan,
  .login-scene-car {
    animation: none !important;
  }
  .btn-login::after {
    display: none;
  }
}

/* 窄屏：示意在上、登录在下 */
@media (max-width: 960px) {
  .login-stage {
    flex-direction: column;
    justify-content: center;
    padding-top: 8px;
  }

  .login-hero {
    max-width: 560px;
    width: 100%;
  }

  .login-wrap {
    max-width: min(420px, 100%);
  }
}

@media (max-width: 560px) {
  .login-hero {
    display: none;
  }

  .login-deco-shape--1,
  .login-deco-shape--3,
  .login-deco-shape--5 {
    display: none;
  }
}

/* 1920+ */
@media (min-width: 1920px) {
  .login-body {
    --login-w: 460px;
    --login-pad-x: 44px;
    --login-pad-y: 48px;
    --login-gap: 20px;
    --login-logo: 120px;
    --login-title: 42px;
    --login-label: 15px;
    --login-input-h: 52px;
    --login-input-fs: 16px;
    --login-btn-fs: 17px;
  }
}

/* 2K / 4K */
@media (min-width: 2560px) {
  .login-body {
    --login-w: 560px;
    --login-pad-x: 56px;
    --login-pad-y: 56px;
    --login-gap: 24px;
    --login-logo: 140px;
    --login-title: 48px;
    --login-label: 17px;
    --login-input-h: 60px;
    --login-input-fs: 18px;
    --login-btn-fs: 19px;
  }
}

/* 登录页改密弹框 */
.pwd-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pwd-modal.hidden {
  display: none !important;
}

.pwd-modal__mask {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

.pwd-modal__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--login-w);
  padding: var(--login-pad-y) var(--login-pad-x);
  border-radius: var(--login-radius);
  background: #fff;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.22);
  animation: login-enter 0.35s ease-out both;
}

.pwd-modal__title {
  margin: 0;
  font-size: clamp(20px, 1.5vw, 26px);
  font-weight: 600;
  color: #0f172a;
  letter-spacing: 0.04em;
}

.pwd-modal__desc {
  margin: 10px 0 0;
  font-size: var(--login-label);
  color: var(--muted);
  line-height: 1.55;
}

.pwd-modal .login-form {
  margin-top: clamp(18px, 2vh, 28px);
}