/* 登录页 — 与 console theme token 对齐，数字化动态背景 */
html.login-html {
  height: 100%;
  overflow: auto;
}
html.login-html body.login-page {
  height: auto;
  min-height: 100%;
  min-height: 100dvh;
  margin: 0;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 72px;
  box-sizing: border-box;
  position: relative;
  isolation: isolate;
  color: var(--text);
  background: var(--bg);
}

/* —— 动态背景层 —— */
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, var(--brand-soft), transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 75%, rgba(15, 95, 86, 0.08), transparent 50%),
    var(--bg);
}
html[data-theme="dark"] .login-bg {
  background:
    radial-gradient(ellipse 80% 60% at 12% 18%, rgba(45, 212, 191, 0.12), transparent 55%),
    radial-gradient(ellipse 70% 50% at 88% 80%, rgba(45, 212, 191, 0.06), transparent 50%),
    var(--bg);
}
html[data-theme="custom"] .login-bg,
html[data-theme="amber"] .login-bg {
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, color-mix(in srgb, var(--ui-brand-custom, #2563eb) 16%, transparent), transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 75%, color-mix(in srgb, var(--ui-brand-custom, #2563eb) 8%, transparent), transparent 50%),
    var(--bg);
}
html[data-theme="custom"] .login-brand,
html[data-theme="amber"] .login-brand {
  color: var(--brand-ink);
}

.login-bg__grid {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 70% 65% at 50% 45%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 65% at 50% 45%, #000 20%, transparent 75%);
  animation: login-grid-drift 28s linear infinite;
  transform: perspective(600px) rotateX(52deg) scale(1.35);
  transform-origin: center 30%;
}
html[data-theme="dark"] .login-bg__grid { opacity: 0.22; }

.login-bg__hex {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--brand) 1px, transparent 0);
  background-size: 28px 28px;
  opacity: 0.07;
  animation: login-hex-pulse 8s var(--ease-out) infinite alternate;
}

.login-bg__scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 28%;
  background: linear-gradient(
    to bottom,
    transparent,
    color-mix(in srgb, var(--brand) 8%, transparent),
    transparent
  );
  animation: login-scan 7.5s var(--ease-out) infinite;
  opacity: 0.7;
}

.login-bg__nodes {
  position: absolute;
  inset: 0;
}

.login-bg__node {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
  opacity: 0.45;
  animation: login-node-blink 3.6s var(--ease-snap) infinite;
}
.login-bg__node:nth-child(1) { top: 18%; left: 12%; animation-delay: 0s; }
.login-bg__node:nth-child(2) { top: 28%; left: 78%; animation-delay: 0.8s; width: 4px; height: 4px; }
.login-bg__node:nth-child(3) { top: 62%; left: 18%; animation-delay: 1.4s; }
.login-bg__node:nth-child(4) { top: 72%; left: 86%; animation-delay: 2.1s; width: 5px; height: 5px; }
.login-bg__node:nth-child(5) { top: 44%; left: 52%; animation-delay: 0.4s; width: 3px; height: 3px; }

.login-bg__rain {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  justify-content: space-around;
  padding: 0 1%;
  opacity: 0.55;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.28;
  color: color-mix(in srgb, var(--brand) 78%, #e2e8f0);
  text-shadow:
    0 0 6px color-mix(in srgb, var(--brand) 55%, transparent),
    0 0 14px color-mix(in srgb, var(--brand) 28%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 8%, #000 78%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 8%, #000 78%, transparent);
  pointer-events: none;
  overflow: hidden;
}
.login-bg__col {
  width: 1.15em;
  white-space: pre;
  text-align: center;
  letter-spacing: 0.04em;
  /* 必须带 duration：简写省略时默认为 0s，列会看起来“卡住不动” */
  animation-name: login-rain-fall;
  animation-duration: 16s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-delay: 0s;
  opacity: 0.85;
  will-change: transform;
}
.login-bg__col:nth-child(odd) { opacity: 0.95; }
.login-bg__col:nth-child(even) { opacity: 0.55; }
.login-bg__col:nth-child(3n) { opacity: 0.72; }
.login-bg__col:nth-child(4n) { opacity: 0.4; font-size: 11px; }

@keyframes login-grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 0 48px, 48px 0; }
}
@keyframes login-scan {
  0% { transform: translateY(-40vh); }
  100% { transform: translateY(120vh); }
}
@keyframes login-hex-pulse {
  from { opacity: 0.04; }
  to { opacity: 0.1; }
}
@keyframes login-node-blink {
  0%, 100% { opacity: 0.25; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.25); }
}
@keyframes login-rain-fall {
  from { transform: translateY(-45%); }
  to { transform: translateY(50%); }
}
@keyframes login-card-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .login-bg__grid,
  .login-bg__scan,
  .login-bg__hex,
  .login-bg__node {
    animation: none !important;
  }
  /* 登录数据雨仍保持下落（企业机常开“减少动态效果”，否则会整屏静止） */
  body[data-login-style="signal"] .login-bg__col {
    animation-name: login-rain-fall !important;
    animation-timing-function: linear !important;
    animation-iteration-count: infinite !important;
  }
}

/* —— 顶栏控件 —— */
.login-top {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: flex;
  gap: 8px;
}
.login-preview-banner {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #0f172a;
  background: color-mix(in srgb, #fef3c7 92%, #fff);
  border: 1px solid #f59e0b;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
  white-space: nowrap;
}
html[data-theme="dark"] .login-preview-banner {
  color: #fef3c7;
  background: color-mix(in srgb, #78350f 75%, #0f172a);
  border-color: #b45309;
}

/* —— 登录卡片 —— */
.login-shell {
  position: relative;
  z-index: 1;
  width: min(546px, calc(100vw - 32px));
  padding: 42px 40px 36px;
  --_card-op: var(--login-card-opacity, 88);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand-soft) 42%, transparent), transparent 34%),
    color-mix(in srgb, var(--panel) calc(var(--_card-op) * 1%), transparent);
  border: 1px solid color-mix(in srgb, var(--line) 82%, var(--brand));
  border-radius: 18px;
  box-shadow:
    0 28px 70px color-mix(in srgb, var(--text) 14%, transparent),
    0 4px 18px color-mix(in srgb, var(--brand) 12%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(18px) saturate(1.12);
  -webkit-backdrop-filter: blur(18px) saturate(1.12);
  animation: login-card-in var(--dur-2) var(--ease-out);
}
html[data-theme="dark"] .login-shell {
  background: color-mix(in srgb, var(--panel) calc(var(--_card-op, var(--login-card-opacity, 88)) * 1%), transparent);
  border-color: color-mix(in srgb, var(--line) 80%, var(--brand));
}

.login-shell::before {
  content: "";
  position: absolute;
  top: 0;
  left: 32px;
  right: 32px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
  opacity: 0.9;
}
.login-shell::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid color-mix(in srgb, var(--brand) 13%, transparent);
  border-radius: 12px;
  pointer-events: none;
}

.login-brand {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.login-mark {
  flex: 0 0 auto;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--brand) 48%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand) 28%, transparent), transparent 62%),
    var(--panel-2);
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--brand) 20%, transparent);
}
.login-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.login-brand__copy { min-width: 0; }
.login-brand h1 {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin: 0;
  line-height: 1.18;
  white-space: nowrap;
}
.login-brand h1 span {
  font-size: 25px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text);
}
.login-brand h1 i {
  font-size: 16px;
  color: var(--muted);
  font-style: normal;
  font-weight: 500;
}
.login-brand h1 em {
  font-size: 14px;
  color: var(--fg-accent);
  font-style: normal;
  font-weight: 650;
  letter-spacing: 0.035em;
}
.login-brand p {
  margin: 6px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
}
.login-intro {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 25px;
  color: color-mix(in srgb, var(--text) 70%, var(--muted));
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
}
.login-intro__line {
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--line-strong) 80%, var(--text)));
}
.login-intro__line:last-child {
  background: linear-gradient(90deg, color-mix(in srgb, var(--line-strong) 80%, var(--text)), transparent);
}

.login-shell form { position: relative; z-index: 1; }
.login-shell .field { margin-bottom: 18px; }
.login-shell .field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 680;
  color: color-mix(in srgb, var(--text) 82%, var(--muted));
}
.login-shell .field label .hint {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: color-mix(in srgb, var(--text) 48%, var(--muted));
  opacity: 1;
  letter-spacing: 0.06em;
}

/* 浅色 / 自定义：半透明卡上提高文案对比，避免发灰发虚 */
html[data-theme="light"] .login-intro,
html[data-theme="custom"] .login-intro,
html[data-theme="amber"] .login-intro {
  color: #334155;
}
html[data-theme="light"] .login-shell .field label,
html[data-theme="custom"] .login-shell .field label,
html[data-theme="amber"] .login-shell .field label {
  color: #1e293b;
}
html[data-theme="light"] .login-shell .field label .hint,
html[data-theme="custom"] .login-shell .field label .hint,
html[data-theme="amber"] .login-shell .field label .hint {
  color: #64748b;
}
html[data-theme="light"] .login-brand p,
html[data-theme="custom"] .login-brand p,
html[data-theme="amber"] .login-brand p {
  color: #64748b;
}
html[data-theme="light"] .login-intro__line,
html[data-theme="custom"] .login-intro__line,
html[data-theme="amber"] .login-intro__line {
  background: linear-gradient(90deg, transparent, #94a3b8);
}
html[data-theme="light"] .login-intro__line:last-child,
html[data-theme="custom"] .login-intro__line:last-child,
html[data-theme="amber"] .login-intro__line:last-child {
  background: linear-gradient(90deg, #94a3b8, transparent);
}
.login-shell input[type=text],
.login-shell input[type=password] {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  font-size: 15px;
  background: color-mix(in srgb, var(--panel-2) 88%, transparent);
}
.login-shell input[type=text]:focus-visible,
.login-shell input[type=password]:focus-visible {
  background: var(--panel);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.login-shell .messages { margin-bottom: 12px; }

.login-submit {
  width: 100%;
  margin-top: 10px;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid color-mix(in srgb, var(--brand) 75%, var(--line));
  border-radius: 10px;
  background: linear-gradient(110deg, var(--brand-hover), var(--brand));
  color: var(--on-brand);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition:
    background var(--dur-1) var(--ease-out),
    transform var(--dur-1) var(--ease-snap),
    box-shadow var(--dur-1) var(--ease-out);
  box-shadow: 0 10px 22px color-mix(in srgb, var(--brand) 28%, transparent);
}
.login-submit:hover {
  background: linear-gradient(110deg, var(--brand-hover), var(--brand-hover));
  box-shadow: 0 14px 28px color-mix(in srgb, var(--brand) 36%, transparent);
}
.login-submit:active { transform: translateY(1px); }
.login-submit:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

@media (max-width: 620px) {
  html.login-html body.login-page {
    padding: 20px 14px 72px;
  }
  .login-shell { width: min(100%, 546px); padding: 32px 24px 28px; }
  .login-brand { gap: 12px; }
  .login-mark { width: 46px; height: 46px; font-size: 15px; }
  .login-brand h1 { gap: 5px; }
  .login-brand h1 span { font-size: 21px; }
  .login-brand h1 em { font-size: 12px; }
  .login-brand p { font-size: 8px; }
}

/* —— 右下角：产品介绍（精简入口） —— */
.login-product {
  position: fixed;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: auto;
  max-width: none;
  padding: 8px 12px 8px 8px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid color-mix(in srgb, var(--line) 78%, var(--brand));
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  box-shadow:
    0 10px 24px color-mix(in srgb, var(--text) 10%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  transition:
    transform var(--dur-1, 160ms) var(--ease-out, ease),
    border-color var(--dur-1, 160ms) var(--ease-out, ease),
    box-shadow var(--dur-1, 160ms) var(--ease-out, ease);
}
.login-product:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--brand) 42%, var(--line));
  box-shadow:
    0 14px 28px color-mix(in srgb, var(--text) 12%, transparent),
    0 0 0 1px color-mix(in srgb, var(--brand) 16%, transparent);
}
.login-product:active { transform: translateY(0); }
.login-product:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.login-product__orb {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  position: relative;
  background:
    radial-gradient(circle at 35% 30%, color-mix(in srgb, #fff 55%, transparent), transparent 42%),
    linear-gradient(145deg, var(--brand), color-mix(in srgb, var(--brand) 55%, #0f766e));
  box-shadow: 0 4px 10px color-mix(in srgb, var(--brand) 24%, transparent);
  flex: 0 0 auto;
}
.login-product__orb::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 3px;
  border: 1.4px solid rgba(255, 255, 255, 0.75);
  border-right-color: transparent;
  border-bottom-color: transparent;
  transform: rotate(45deg);
}

.login-product__title {
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: var(--text);
  line-height: 1;
  white-space: nowrap;
}

html[data-theme="dark"] .login-product {
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  box-shadow:
    0 12px 28px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
html[data-theme="dark"] .login-product__orb::after {
  border-color: rgba(255, 255, 255, 0.55);
  border-right-color: transparent;
  border-bottom-color: transparent;
}

@media (max-width: 620px) {
  .login-product {
    left: auto;
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    width: auto;
    padding: 7px 11px 7px 7px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-product { transition: none; }
}

/* —— 舞台布局（三种风格共用） —— */
.login-stage {
  position: relative;
  z-index: 1;
  width: min(546px, calc(100vw - 32px));
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.login-stage .login-shell {
  width: 100%;
  box-sizing: border-box;
}
.login-visual {
  display: none;
}
.login-bg__photo,
.login-bg__veil {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.login-bg__hex,
.login-bg__scan,
.login-bg__nodes {
  z-index: 1;
}
.login-bg__photo {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1.02);
}
.login-bg__veil {
  opacity: 0;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 55%, transparent), color-mix(in srgb, var(--bg) 78%, transparent));
}
body.has-login-bg .login-bg__photo { opacity: 1; }
body.has-login-bg .login-bg__veil { opacity: 1; }

/* ========== 风格 A：数智信号（默认，居中科技玻璃卡） ========== */
body[data-login-style="signal"] .login-stage {
  width: min(546px, calc(100vw - 32px));
}
body[data-login-style="signal"] .login-bg__grid {
  display: none !important;
}
/* 数据雨：保证在背景图/暗罩之上，并保持可见对比度 */
body[data-login-style="signal"] .login-bg__rain {
  display: flex;
  z-index: 2;
  opacity: 0.72;
  color: color-mix(in srgb, var(--brand) 72%, #64748b);
  mix-blend-mode: normal;
  text-shadow:
    0 0 6px color-mix(in srgb, var(--brand) 45%, transparent),
    0 0 14px color-mix(in srgb, var(--brand) 22%, transparent);
}
html[data-theme="dark"] body[data-login-style="signal"] .login-bg__rain,
html[data-theme="custom"] body[data-login-style="signal"] .login-bg__rain,
html[data-theme="amber"] body[data-login-style="signal"] .login-bg__rain {
  opacity: 0.78;
  color: color-mix(in srgb, var(--brand) 70%, #e2e8f0);
  text-shadow:
    0 0 7px color-mix(in srgb, var(--brand) 55%, transparent),
    0 0 16px color-mix(in srgb, var(--brand) 28%, transparent);
}
body[data-login-style="signal"] .login-bg__col {
  opacity: 0.88;
}
body[data-login-style="signal"] .login-bg__col:nth-child(odd) { opacity: 0.95; }
body[data-login-style="signal"] .login-bg__col:nth-child(even) { opacity: 0.62; }
body[data-login-style="signal"] .login-bg__col:nth-child(3n) { opacity: 0.78; }
body[data-login-style="signal"] .login-bg__col:nth-child(4n) { opacity: 0.48; }
/* 有背景图时：照片为主视觉，轻暗罩 + 清晰数字雨（勿用 screen，浅色图会把雨“洗没”） */
body[data-login-style="signal"].has-login-bg .login-bg {
  background: #0b1220;
}
body[data-login-style="signal"].has-login-bg .login-bg__photo {
  opacity: 1;
  filter: saturate(1.08) contrast(1.02);
}
body[data-login-style="signal"].has-login-bg .login-bg__veil {
  opacity: 1;
  background:
    radial-gradient(ellipse 75% 60% at 50% 42%, rgba(15, 23, 42, 0.18), rgba(15, 23, 42, 0.48) 100%),
    linear-gradient(180deg, rgba(15, 23, 42, 0.22) 0%, rgba(15, 23, 42, 0.4) 100%),
    radial-gradient(ellipse 80% 55% at 12% 18%, color-mix(in srgb, var(--brand) 22%, transparent), transparent 60%);
}
body[data-login-style="signal"].has-login-bg .login-bg__rain {
  opacity: 0.7;
  mix-blend-mode: normal;
  color: color-mix(in srgb, var(--brand) 55%, #cbd5e1);
  text-shadow:
    0 0 6px color-mix(in srgb, var(--brand) 48%, transparent),
    0 0 14px color-mix(in srgb, #22d3ee 22%, transparent);
}
body[data-login-style="signal"].has-login-bg .login-bg__hex {
  opacity: 0.04;
}
body[data-login-style="signal"] .login-shell {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand-soft) 42%, transparent), transparent 34%),
    color-mix(in srgb, var(--panel) calc(var(--login-card-opacity, 88) * 1%), transparent);
}
html[data-theme="dark"] body[data-login-style="signal"] .login-shell {
  background: color-mix(in srgb, var(--panel) calc(var(--login-card-opacity, 88) * 1%), transparent);
}

/* ========== 风格 B：品牌分栏（左纯图 · 右居中表单） ========== */
html.login-html body.login-page[data-login-style="atelier"] {
  display: block;
  padding: 0;
  overflow: hidden;
  min-height: 100dvh;
}
body[data-login-style="atelier"] .login-bg__grid,
body[data-login-style="atelier"] .login-bg__hex,
body[data-login-style="atelier"] .login-bg__scan,
body[data-login-style="atelier"] .login-bg__nodes,
body[data-login-style="atelier"] .login-bg__rain {
  display: none;
}
body[data-login-style="atelier"] .login-bg {
  background: var(--bg);
}
body[data-login-style="atelier"] .login-stage {
  width: 100%;
  min-height: 100dvh;
  display: grid;
  /* 左图略宽，右栏给表单足够居中空间 */
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
}
body[data-login-style="atelier"] .login-visual {
  display: block;
  position: relative;
  overflow: hidden;
  min-height: 100%;
  padding: 0;
  color: #f8fafc;
  background:
    linear-gradient(155deg,
      color-mix(in srgb, var(--brand) 55%, #0b1220) 0%,
      #0f172a 48%,
      #111827 100%);
}
body[data-login-style="atelier"].has-login-bg .login-visual {
  background-image:
    linear-gradient(155deg, rgba(15, 23, 42, 0.28), rgba(15, 23, 42, 0.42)),
    var(--atelier-photo);
  background-size: cover;
  background-position: center;
}
body[data-login-style="atelier"].has-login-bg .login-bg__photo {
  opacity: 0;
}
/* 左侧仅保留品牌图，隐藏文案 / Logo / 光晕 */
body[data-login-style="atelier"] .login-visual__glow,
body[data-login-style="atelier"] .login-visual__brand,
body[data-login-style="atelier"] .login-visual__points {
  display: none !important;
}
body[data-login-style="atelier"] .login-shell {
  width: 100%;
  max-width: none;
  min-height: 100dvh;
  margin: 0;
  border-radius: 0;
  border: none;
  border-left: 1px solid var(--line);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: var(--panel);
  /* 随视口缩放保持内边距比例，表单块在右栏水平+垂直居中 */
  padding:
    clamp(28px, 6vh, 64px)
    clamp(20px, 4.5vw, 56px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  animation: none;
  box-sizing: border-box;
}
body[data-login-style="atelier"] .login-shell::before,
body[data-login-style="atelier"] .login-shell::after {
  display: none;
}
/* 品牌头 / 引导 / 报错 / 表单统一宽度并居中 */
body[data-login-style="atelier"] .login-shell > .login-brand,
body[data-login-style="atelier"] .login-shell > .login-intro,
body[data-login-style="atelier"] .login-shell > .messages,
body[data-login-style="atelier"] .login-shell > form {
  width: 100%;
  max-width: min(400px, 100%);
  box-sizing: border-box;
}
body[data-login-style="atelier"] .login-brand {
  margin-bottom: 18px;
}
body[data-login-style="atelier"] .login-intro {
  margin-bottom: 28px;
}
body[data-login-style="atelier"] .login-shell form {
  max-width: min(400px, 100%);
}
@media (max-width: 1100px) {
  body[data-login-style="atelier"] .login-stage {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  }
}
@media (max-width: 900px) {
  body[data-login-style="atelier"] .login-stage {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(160px, 28vh) minmax(0, 1fr);
  }
  body[data-login-style="atelier"] .login-visual {
    min-height: 160px;
    padding: 0;
  }
  body[data-login-style="atelier"] .login-shell {
    min-height: auto;
    border-left: none;
    padding: clamp(28px, 5vh, 40px) clamp(18px, 5vw, 28px) 44px;
    align-items: center;
  }
}
@media (max-width: 480px) {
  body[data-login-style="atelier"] .login-stage {
    grid-template-rows: minmax(120px, 22vh) minmax(0, 1fr);
  }
}

/* ========== 风格 C：光影画布（全屏背景 · 悬浮磨砂卡） ========== */
body[data-login-style="lumen"] .login-bg__grid,
body[data-login-style="lumen"] .login-bg__hex,
body[data-login-style="lumen"] .login-bg__scan,
body[data-login-style="lumen"] .login-bg__nodes,
body[data-login-style="lumen"] .login-bg__rain {
  display: none;
}
body[data-login-style="lumen"] .login-bg {
  background:
    radial-gradient(ellipse 90% 70% at 50% 0%, color-mix(in srgb, var(--brand) 18%, transparent), transparent 55%),
    linear-gradient(160deg, #0f172a 0%, #1e293b 45%, #334155 100%);
}
body[data-login-style="lumen"].has-login-bg .login-bg__photo {
  opacity: 1;
  filter: saturate(1.05) contrast(1.02);
}
body[data-login-style="lumen"] .login-bg__veil,
body[data-login-style="lumen"].has-login-bg .login-bg__veil {
  opacity: 1;
  background:
    linear-gradient(180deg, rgba(15, 23, 42, 0.28) 0%, rgba(15, 23, 42, 0.55) 55%, rgba(15, 23, 42, 0.72) 100%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(0, 0, 0, 0.35), transparent 70%);
}
body[data-login-style="lumen"] .login-stage {
  width: min(440px, calc(100vw - 32px));
}
body[data-login-style="lumen"] .login-shell {
  width: 100%;
  padding: 36px 32px 32px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: color-mix(in srgb, var(--panel) calc(var(--login-card-opacity, 88) * 1%), transparent);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(22px) saturate(1.2);
  -webkit-backdrop-filter: blur(22px) saturate(1.2);
}
body[data-login-style="lumen"] .login-shell::before {
  left: 24px;
  right: 24px;
  opacity: 0.7;
}
body[data-login-style="lumen"] .login-shell::after {
  display: none;
}
body[data-login-style="lumen"] .login-brand {
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
body[data-login-style="lumen"] .login-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
}
body[data-login-style="lumen"] .login-brand h1 {
  flex-wrap: wrap;
  white-space: normal;
}
body[data-login-style="lumen"] .login-brand h1 span {
  font-size: 22px;
  letter-spacing: -0.01em;
}
body[data-login-style="lumen"] .login-intro {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
}
html[data-theme="dark"] body[data-login-style="lumen"] .login-shell {
  background: color-mix(in srgb, var(--panel) calc(var(--login-card-opacity, 88) * 1%), transparent);
  border-color: rgba(255, 255, 255, 0.12);
}