:root {
  --lx-night: #050917;
  --lx-midnight: #08162f;
  --lx-navy: #0b2856;
  --lx-blue: #0c62d8;
  --lx-cyan: #1edff5;
  --lx-violet: #7356e8;
  --lx-magenta: #d33fd6;
  --lx-gold: #d3b36d;
  --lx-gold-soft: #f4e6bd;
  --lx-silver: #eaf4ff;
  --lx-canvas: #edf3f9;
  --lx-surface: rgba(255, 255, 255, 0.94);
  --lx-surface-solid: #ffffff;
  --lx-surface-dark: rgba(7, 20, 45, 0.94);
  --lx-ink: #111d32;
  --lx-muted: #637087;
  --lx-line: rgba(39, 80, 130, 0.16);
  --lx-line-bright: rgba(30, 223, 245, 0.38);
  --lx-shadow: 0 18px 48px rgba(8, 26, 59, 0.13);
  --lx-shadow-soft: 0 8px 24px rgba(8, 26, 59, 0.08);
  --lx-focus: 0 0 0 3px rgba(30, 223, 245, 0.2);
  --lx-brand-primary: #0b2856;
  --lx-brand-accent: #1edff5;
  --lx-brand-metal: #d3b36d;
  --lx-brand-poster: url("/assets/brand-posters/langsi-poster.webp");
}

html[data-brand="taimei"] {
  --lx-brand-primary: #652840;
  --lx-brand-accent: #d16f92;
  --lx-brand-metal: #c59a55;
  --lx-brand-poster: url("/assets/brand-posters/taimei-poster.webp");
}

html[data-brand="beimanzi"] {
  --lx-brand-primary: #171717;
  --lx-brand-accent: #d5b86e;
  --lx-brand-metal: #e8d29a;
  --lx-brand-poster: url("/assets/brand-posters/beimanzi-poster.webp");
}

body.brand-experience {
  min-width: 320px;
  color: var(--lx-ink);
  background: var(--lx-canvas);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body.brand-experience *,
body.brand-experience *::before,
body.brand-experience *::after {
  box-sizing: border-box;
  letter-spacing: 0;
}

body.brand-experience > :not(.lx-atmosphere):not(.portal-entry):not(.customer-splash) {
  position: relative;
  z-index: 1;
}

.lx-atmosphere {
  position: fixed;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background: var(--lx-canvas);
}

.lx-atmosphere::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(237, 243, 249, 0.86), rgba(237, 243, 249, 0.96)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center top;
  background-size: cover;
  content: "";
}

.lx-atmosphere::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lx-cyan), var(--lx-violet) 38%, var(--lx-magenta) 68%, var(--lx-gold));
  box-shadow: 0 -4px 18px rgba(30, 223, 245, 0.36);
  content: "";
}

.lx-data-rain {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.13;
}

.lx-scanline {
  position: absolute;
  top: -12%;
  right: 0;
  left: 0;
  height: 18%;
  border-bottom: 1px solid rgba(30, 223, 245, 0.28);
  background: linear-gradient(180deg, transparent, rgba(30, 223, 245, 0.06));
  animation: lx-scan 10s linear infinite;
}

body.brand-experience button,
body.brand-experience a,
body.brand-experience input,
body.brand-experience select,
body.brand-experience textarea {
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease, opacity 160ms ease;
}

body.brand-experience button:not(:disabled):active,
body.brand-experience a:active {
  transform: translateY(1px);
}

body.brand-experience input,
body.brand-experience select,
body.brand-experience textarea {
  border-color: var(--lx-line);
  background: rgba(255, 255, 255, 0.96);
  color: var(--lx-ink);
}

body.brand-experience input:focus,
body.brand-experience select:focus,
body.brand-experience textarea:focus {
  border-color: var(--lx-brand-accent);
  box-shadow: var(--lx-focus);
  outline: 0;
}

body.brand-experience ::selection {
  color: #fff;
  background: var(--lx-blue);
}

body.brand-experience ::-webkit-scrollbar {
  width: 9px;
  height: 9px;
}

body.brand-experience ::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 8px;
  background: rgba(63, 89, 126, 0.45);
  background-clip: padding-box;
}

/* Headquarters shell */
body.brand-experience .app-shell {
  background: transparent;
}

body.brand-experience .sidebar,
body.brand-experience .agent-sidebar {
  position: relative;
  overflow: hidden;
  border-right: 1px solid rgba(30, 223, 245, 0.22);
  background-color: var(--lx-night);
  background-image: linear-gradient(rgba(5, 9, 23, 0.82), rgba(5, 9, 23, 0.94)), url("/assets/screens/ai-beauty-screen-mobile-lite.jpg");
  background-position: center;
  background-size: cover;
  color: #eef7ff;
  box-shadow: 10px 0 34px rgba(4, 12, 31, 0.16);
}

body.brand-experience .sidebar::after,
body.brand-experience .agent-sidebar::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--lx-cyan), var(--lx-violet), transparent);
  opacity: 0.7;
  content: "";
}

body.brand-experience .brand,
body.brand-experience .agent-sidebar > strong,
body.brand-experience .agent-sidebar > span,
body.brand-experience .agent-tabs,
body.brand-experience .agent-account-actions {
  position: relative;
  z-index: 1;
}

body.brand-experience .brand {
  border-bottom-color: rgba(234, 244, 255, 0.16);
}

body.brand-experience .brand-mark {
  border: 1px solid rgba(234, 244, 255, 0.42);
  background: #eaf4ff;
  color: #07152e;
  box-shadow: 0 0 22px rgba(30, 223, 245, 0.23);
}

body.brand-experience .brand strong,
body.brand-experience .agent-sidebar strong {
  color: #fff;
  text-shadow: 0 0 18px rgba(30, 223, 245, 0.18);
}

body.brand-experience .brand span,
body.brand-experience .agent-sidebar > span {
  color: rgba(234, 244, 255, 0.68);
}

body.brand-experience .nav-item,
body.brand-experience .utility-button,
body.brand-experience .agent-tabs button {
  border: 1px solid transparent;
  color: rgba(234, 244, 255, 0.76);
  background: transparent;
}

body.brand-experience .nav-item:hover,
body.brand-experience .utility-button:hover,
body.brand-experience .agent-tabs button:hover {
  border-color: rgba(30, 223, 245, 0.18);
  background: rgba(18, 67, 123, 0.36);
  color: #fff;
}

body.brand-experience .nav-item.is-active,
body.brand-experience .utility-button.is-active,
body.brand-experience .agent-tabs button.is-active {
  border-color: rgba(30, 223, 245, 0.34);
  background: rgba(16, 81, 150, 0.55);
  color: #fff;
  box-shadow: inset 3px 0 0 var(--lx-cyan), 0 8px 22px rgba(1, 10, 32, 0.22);
}

body.brand-experience .nav-item.is-active::before,
body.brand-experience .utility-button.is-active::before {
  background: var(--lx-cyan);
  box-shadow: 0 0 12px var(--lx-cyan);
}

body.brand-experience .main-area,
body.brand-experience .agent-main,
body.brand-experience .teacher-app {
  background: transparent;
}

body.brand-experience .topbar {
  border-bottom: 1px solid rgba(30, 223, 245, 0.2);
  background: rgba(6, 18, 43, 0.94);
  color: #eef7ff;
  box-shadow: 0 8px 28px rgba(5, 18, 44, 0.13);
  backdrop-filter: blur(18px);
}

body.brand-experience .module-switcher {
  border-color: rgba(234, 244, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
}

body.brand-experience .module-button {
  color: rgba(234, 244, 255, 0.72);
}

body.brand-experience .module-button:hover,
body.brand-experience .module-button.is-active {
  color: #fff;
  background: rgba(12, 98, 216, 0.38);
  box-shadow: inset 0 -2px 0 var(--lx-cyan);
}

body.brand-experience .topbar .search-box,
body.brand-experience .topbar .icon-button,
body.brand-experience .topbar .square-button,
body.brand-experience .topbar .subscription-button {
  border-color: rgba(234, 244, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #eff7ff;
}

body.brand-experience .topbar .search-box input {
  border: 0;
  background: transparent;
  color: #fff;
}

body.brand-experience .topbar .search-box input::placeholder {
  color: rgba(234, 244, 255, 0.58);
}

body.brand-experience .workspace-tabs {
  border-bottom: 1px solid rgba(39, 80, 130, 0.12);
  background: rgba(248, 251, 255, 0.82);
  backdrop-filter: blur(12px);
}

body.brand-experience .workspace-tab {
  border-color: transparent;
  color: var(--lx-muted);
  background: transparent;
}

body.brand-experience .workspace-tab.is-active {
  border-color: rgba(12, 98, 216, 0.22);
  color: var(--lx-navy);
  background: #fff;
  box-shadow: inset 0 -2px 0 var(--lx-blue), var(--lx-shadow-soft);
}

body.brand-experience .content-shell,
body.brand-experience .agent-main {
  position: relative;
}

body.brand-experience .page-panel,
body.brand-experience .beauty-os-page,
body.brand-experience .management-page,
body.brand-experience .role-management-page {
  position: relative;
}

body.brand-experience .beauty-os-hero,
body.brand-experience .agent-overview-hero,
body.brand-experience .agent-head,
body.brand-experience .teacher-inbox-hero,
body.brand-experience .teacher-head,
body.brand-experience .teacher-command-hero,
body.brand-experience .agent-role-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(30, 223, 245, 0.24);
  border-radius: 8px;
  background-color: var(--lx-midnight);
  background-image: linear-gradient(90deg, rgba(5, 9, 23, 0.93), rgba(8, 33, 75, 0.74)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center;
  background-size: cover;
  color: #f2f8ff;
  box-shadow: var(--lx-shadow);
}

body.brand-experience .beauty-os-hero,
body.brand-experience .agent-overview-hero,
body.brand-experience .teacher-command-hero,
body.brand-experience .agent-role-hero {
  padding: 26px 28px;
}

body.brand-experience .agent-head,
body.brand-experience .teacher-inbox-hero,
body.brand-experience .teacher-head {
  min-height: 92px;
  padding: 18px 22px;
}

body.brand-experience .beauty-os-hero::after,
body.brand-experience .agent-overview-hero::after,
body.brand-experience .teacher-inbox-hero::after,
body.brand-experience .teacher-command-hero::after,
body.brand-experience .agent-role-hero::after {
  position: absolute;
  right: -42px;
  bottom: -68px;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(30, 223, 245, 0.28);
  border-radius: 50%;
  box-shadow: 0 0 0 24px rgba(115, 86, 232, 0.08), 0 0 0 48px rgba(30, 223, 245, 0.05);
  content: "";
}

body.brand-experience .beauty-os-hero h1,
body.brand-experience .agent-overview-hero h2,
body.brand-experience .agent-head h1,
body.brand-experience .teacher-inbox-hero h1,
body.brand-experience .teacher-head h1,
body.brand-experience .teacher-command-hero h2,
body.brand-experience .agent-role-hero h2 {
  position: relative;
  z-index: 1;
  color: #fff;
}

body.brand-experience .beauty-os-hero span,
body.brand-experience .beauty-os-hero p,
body.brand-experience .agent-overview-hero span,
body.brand-experience .agent-overview-hero p,
body.brand-experience .agent-head span,
body.brand-experience .teacher-inbox-hero span,
body.brand-experience .teacher-inbox-hero p,
body.brand-experience .teacher-head span,
body.brand-experience .teacher-command-hero p,
body.brand-experience .agent-role-hero span {
  position: relative;
  z-index: 1;
  color: rgba(234, 244, 255, 0.74);
}

body.brand-experience .eyebrow,
body.brand-experience .beauty-os-hero .eyebrow,
body.brand-experience .agent-overview-hero .eyebrow,
body.brand-experience .agent-role-hero .eyebrow {
  color: var(--lx-gold-soft);
  text-transform: uppercase;
}

/* Shared operational surfaces */
body.brand-experience .metric-card,
body.brand-experience .beauty-os-metric,
body.brand-experience .beauty-os-card,
body.brand-experience .management-card,
body.brand-experience .customer-card,
body.brand-experience .panel,
body.brand-experience .table-panel,
body.brand-experience .ops-panel,
body.brand-experience .account-card,
body.brand-experience .content-card,
body.brand-experience .agent-panel,
body.brand-experience .teacher-metrics,
body.brand-experience .teacher-customer-list,
body.brand-experience .teacher-conversation-panel,
body.brand-experience .teacher-customer-insight,
body.brand-experience .teacher-invite-card,
body.brand-experience .teacher-command-center,
body.brand-experience .teacher-message-sidebar,
body.brand-experience .teacher-message-main,
body.brand-experience .teacher-inbox-context,
body.brand-experience .teacher-inbox-ai-dock,
body.brand-experience .agent-store-directory,
body.brand-experience .management-directory,
body.brand-experience .role-list-section {
  border-color: var(--lx-line);
  border-radius: 8px;
  background: var(--lx-surface);
  box-shadow: var(--lx-shadow-soft);
  backdrop-filter: blur(16px);
}

body.brand-experience .metric-card:hover,
body.brand-experience .beauty-os-metric:hover,
body.brand-experience .beauty-os-card:hover,
body.brand-experience .management-card:hover,
body.brand-experience .customer-card:hover,
body.brand-experience .agent-panel:hover {
  border-color: rgba(12, 98, 216, 0.26);
  box-shadow: var(--lx-shadow);
}

body.brand-experience .beauty-os-metric,
body.brand-experience .agent-overview-metrics > article,
body.brand-experience .teacher-inbox-metrics > div,
body.brand-experience .teacher-command-grid > article {
  position: relative;
  overflow: hidden;
}

body.brand-experience .beauty-os-metric::before,
body.brand-experience .agent-overview-metrics > article::before,
body.brand-experience .teacher-inbox-metrics > div::before,
body.brand-experience .teacher-command-grid > article::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lx-blue), var(--lx-cyan), var(--lx-gold));
  content: "";
}

body.brand-experience table,
body.brand-experience .management-directory-table,
body.brand-experience .agent-store-directory-table,
body.brand-experience .customer360-table {
  border-collapse: separate;
  border-spacing: 0;
  color: var(--lx-ink);
}

body.brand-experience table thead,
body.brand-experience .management-table-head,
body.brand-experience .usage-row.head {
  background: #eaf1f9;
  color: #40516d;
}

body.brand-experience table thead th {
  border-bottom: 1px solid rgba(12, 98, 216, 0.16);
  color: #40516d;
  font-weight: 750;
}

body.brand-experience table tbody tr:hover,
body.brand-experience .management-table-row:hover {
  background: rgba(225, 240, 255, 0.52);
}

body.brand-experience .action-button.primary,
body.brand-experience .tiny-button.primary,
body.brand-experience .primary-button,
body.brand-experience .submit-button,
body.brand-experience button[type="submit"]:not(.secondary-button):not(.ghost-button) {
  border-color: var(--lx-brand-primary);
  background: var(--lx-brand-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(5, 22, 52, 0.16);
}

body.brand-experience .action-button.primary:hover,
body.brand-experience .tiny-button.primary:hover,
body.brand-experience .primary-button:hover,
body.brand-experience .submit-button:hover,
body.brand-experience button[type="submit"]:not(.secondary-button):not(.ghost-button):hover {
  border-color: var(--lx-blue);
  background: var(--lx-blue);
  box-shadow: 0 10px 25px rgba(12, 98, 216, 0.22);
}

body.brand-experience .teacher-mode-tabs {
  border-color: var(--lx-line);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--lx-shadow-soft);
}

body.brand-experience .teacher-mode-tabs button.is-active {
  color: #fff;
  background: var(--lx-brand-primary);
  box-shadow: inset 0 -2px 0 var(--lx-brand-accent);
}

body.brand-experience .teacher-inbox-customer.is-active {
  border-color: var(--lx-brand-accent);
  background: rgba(224, 241, 255, 0.76);
  box-shadow: inset 3px 0 0 var(--lx-blue);
}

body.brand-experience .teacher-inbox-ai-dock {
  border-color: rgba(30, 223, 245, 0.26);
  background: #f4faff;
}

body.brand-experience .teacher-chat .is-staff,
body.brand-experience .teacher-chat .staff-message,
body.brand-experience .customer-message.is-user .customer-bubble {
  border-color: var(--lx-brand-primary);
  background: var(--lx-brand-primary);
  color: #fff;
}

/* Customer experience */
body.brand-experience.portal-customer .lx-atmosphere::before {
  background-image: linear-gradient(rgba(244, 248, 252, 0.88), rgba(244, 248, 252, 0.98)), var(--lx-brand-poster);
  background-position: center top;
}

body.brand-experience .customer-app {
  background: transparent;
}

body.brand-experience .customer-shell {
  border: 1px solid rgba(211, 179, 109, 0.32);
  border-radius: 8px;
  background: rgba(251, 253, 255, 0.9);
  box-shadow: 0 24px 70px rgba(5, 23, 52, 0.16);
  backdrop-filter: blur(18px);
}

body.brand-experience .simple-entry-head,
body.brand-experience .customer-chat-head {
  border-bottom: 1px solid rgba(234, 244, 255, 0.17);
  background-color: var(--lx-brand-primary);
  background-image: linear-gradient(90deg, rgba(3, 10, 27, 0.88), rgba(9, 39, 83, 0.7)), var(--lx-brand-poster);
  background-position: center 34%;
  background-size: cover;
  color: #fff;
  box-shadow: 0 10px 28px rgba(5, 23, 52, 0.16);
}

html[data-brand="taimei"] body.brand-experience .simple-entry-head,
html[data-brand="taimei"] body.brand-experience .customer-chat-head {
  background-image: linear-gradient(90deg, rgba(74, 25, 49, 0.88), rgba(130, 55, 83, 0.58)), var(--lx-brand-poster);
}

html[data-brand="beimanzi"] body.brand-experience .simple-entry-head,
html[data-brand="beimanzi"] body.brand-experience .customer-chat-head {
  background-image: linear-gradient(90deg, rgba(10, 10, 10, 0.94), rgba(51, 40, 19, 0.62)), var(--lx-brand-poster);
}

body.brand-experience .simple-entry-head h1,
body.brand-experience .simple-entry-head p,
body.brand-experience .customer-chat-head h1,
body.brand-experience .customer-chat-head span {
  color: #fff;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.35);
}

body.brand-experience .simple-brand-logo,
body.brand-experience .customer-chat-logo {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 24px rgba(30, 223, 245, 0.17);
}

body.brand-experience .customer-entry-dialog,
body.brand-experience .entry-start-panel,
body.brand-experience .returning-customer-panel,
body.brand-experience .guest-experience-panel,
body.brand-experience .vip-bottom-drawer,
body.brand-experience .customer-bubble,
body.brand-experience .customer-thinking-panel,
body.brand-experience .customer-effect-panel {
  border-color: rgba(39, 80, 130, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--lx-shadow-soft);
}

body.brand-experience .customer-message.is-ai .customer-bubble {
  border-left: 2px solid var(--lx-brand-metal);
}

body.brand-experience .customer-message.is-user .customer-bubble p,
body.brand-experience .customer-message.is-user .customer-bubble time {
  color: #fff;
}

body.brand-experience .customer-thinking-orbit,
body.brand-experience .customer-thinking-steps li.is-active > span {
  border-color: var(--lx-brand-accent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--lx-brand-accent) 48%, transparent);
}

body.brand-experience .customer-composer,
body.brand-experience .entry-composer {
  border: 1px solid rgba(39, 80, 130, 0.18);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 -8px 26px rgba(5, 23, 52, 0.08);
}

body.brand-experience .composer-send,
body.brand-experience .entry-send-button,
body.brand-experience .simple-vip-button {
  border-color: var(--lx-brand-primary);
  background: var(--lx-brand-primary);
  color: #fff;
}

body.brand-experience .composer-voice,
body.brand-experience .entry-voice-button,
body.brand-experience .customer-refresh-shortcut,
body.brand-experience .customer-install-shortcut {
  border-color: rgba(211, 179, 109, 0.42);
  background: rgba(255, 255, 255, 0.9);
  color: var(--lx-brand-primary);
}

/* Login and registration */
body.brand-experience.portal-hq:has(.auth-page) {
  background-color: var(--lx-night);
}

body.brand-experience.portal-hq:has(.auth-page) .lx-atmosphere::before {
  background-image: linear-gradient(90deg, rgba(3, 8, 23, 0.72), rgba(6, 29, 66, 0.34)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center;
}

body.brand-experience .auth-page {
  min-height: 100vh;
  padding: clamp(20px, 4vw, 56px);
  background: transparent;
}

body.brand-experience .auth-card {
  width: min(92vw, 760px);
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(30, 223, 245, 0.24);
  border-top: 3px solid var(--lx-cyan);
  background: rgba(252, 254, 255, 0.95);
  box-shadow: 0 32px 90px rgba(0, 6, 20, 0.38);
  backdrop-filter: blur(22px);
}

body.brand-experience .auth-card h1 {
  max-width: 18ch;
  color: var(--lx-night);
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.12;
}

body.brand-experience .auth-card .demo-entry-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.brand-experience .auth-card .demo-entry-card {
  min-height: 104px;
  border-color: rgba(39, 80, 130, 0.18);
  background: rgba(247, 250, 254, 0.96);
}

body.brand-experience .agent-login,
body.brand-experience .teacher-login,
body.brand-experience .clone-login,
body.brand-experience.portal-register {
  background-color: var(--lx-night);
  background-image: linear-gradient(90deg, rgba(3, 8, 23, 0.9), rgba(5, 22, 54, 0.65)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center;
  background-size: cover;
}

body.brand-experience .teacher-login {
  width: 100%;
  max-width: none;
  margin: 0;
}

body.brand-experience .teacher-login > .login-card {
  width: min(520px, calc(100% - 48px));
}

body.brand-experience .agent-login-card,
body.brand-experience .login-card,
body.brand-experience .clone-login-card,
body.brand-experience .registration-panel {
  border: 1px solid rgba(30, 223, 245, 0.25);
  border-radius: 8px;
  background: rgba(252, 254, 255, 0.94);
  box-shadow: 0 28px 80px rgba(0, 6, 20, 0.32);
  backdrop-filter: blur(20px);
}

body.brand-experience .registration-app {
  background: transparent;
}

body.brand-experience .registration-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(30, 223, 245, 0.26);
  border-radius: 8px 8px 0 0;
  background-color: var(--lx-midnight);
  background-image: linear-gradient(90deg, rgba(3, 8, 23, 0.88), rgba(8, 38, 82, 0.62)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center;
  background-size: cover;
  color: #fff;
}

body.brand-experience .registration-hero h1,
body.brand-experience .registration-hero p {
  color: #fff;
}

body.brand-experience .brand-switcher button.is-active,
body.brand-experience .selection-bar button.is-active {
  border-color: var(--lx-blue);
  background: #eaf4ff;
  color: var(--lx-navy);
  box-shadow: inset 0 -2px 0 var(--lx-cyan);
}

/* Chairman clone */
body.brand-experience.portal-chairman .lx-atmosphere::before {
  background-image: linear-gradient(rgba(3, 8, 22, 0.58), rgba(3, 8, 22, 0.84)), url("/assets/screens/ai-beauty-screen.png");
  background-position: center top;
}

body.brand-experience .chairman-app {
  background: transparent;
}

body.brand-experience .clone-shell {
  border: 1px solid rgba(30, 223, 245, 0.22);
  border-radius: 8px;
  background: rgba(245, 249, 253, 0.93);
  box-shadow: 0 26px 78px rgba(0, 6, 20, 0.34);
  backdrop-filter: blur(18px);
}

body.brand-experience .clone-header {
  border-bottom: 1px solid rgba(30, 223, 245, 0.2);
  background-color: var(--lx-midnight);
  background-image: linear-gradient(90deg, rgba(3, 8, 23, 0.92), rgba(8, 38, 82, 0.7)), url("/assets/screens/langsi-ai-command-panorama.jpg");
  background-position: center;
  background-size: cover;
  color: #fff;
}

body.brand-experience .clone-header h1,
body.brand-experience .clone-header span,
body.brand-experience .clone-header b {
  color: #fff;
}

body.brand-experience .clone-avatar,
body.brand-experience .clone-message-avatar {
  border: 1px solid rgba(211, 179, 109, 0.55);
  background: #0a224a;
  color: var(--lx-gold-soft);
  box-shadow: 0 0 20px rgba(30, 223, 245, 0.18);
}

body.brand-experience .clone-message.is-assistant .clone-message-body {
  border-left: 2px solid var(--lx-gold);
  background: #fff;
}

body.brand-experience .clone-message.is-user .clone-message-body {
  background: var(--lx-navy);
  color: #fff;
}

/* Shared content page */
body.brand-experience.portal-content .content-share {
  background: transparent;
}

body.brand-experience .share-card,
body.brand-experience .content-share .empty {
  border: 1px solid rgba(30, 223, 245, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--lx-shadow);
  backdrop-filter: blur(16px);
}

body.brand-experience .share-card > header {
  border-bottom: 1px solid rgba(30, 223, 245, 0.18);
  background: var(--lx-midnight);
  color: #fff;
}

/* Demo and screen pages */
body.brand-experience.portal-demo,
body.brand-experience.portal-store-screen,
body.brand-experience.portal-ui-proposal,
body.brand-experience.portal-legal {
  background: transparent;
}

@keyframes lx-scan {
  0% { transform: translateY(-20vh); opacity: 0; }
  10% { opacity: 1; }
  80% { opacity: 0.8; }
  100% { transform: translateY(120vh); opacity: 0; }
}

@media (max-width: 900px) {
  .lx-data-rain { opacity: 0.08; }

  body.brand-experience .beauty-os-hero,
  body.brand-experience .agent-overview-hero,
  body.brand-experience .teacher-command-hero,
  body.brand-experience .agent-role-hero {
    padding: 22px 20px;
  }

  body.brand-experience .agent-head,
  body.brand-experience .teacher-inbox-hero,
  body.brand-experience .teacher-head {
    min-height: 0;
    padding: 16px;
  }
}

@media (max-width: 760px) {
  body.brand-experience .agent-login {
    align-items: center;
  }

  body.brand-experience .agent-login-card {
    align-self: center;
    min-height: 0;
  }

  body.brand-experience .auth-page {
    padding: 16px;
  }

  body.brand-experience .auth-card {
    width: min(100%, 560px);
    padding: 22px 18px;
  }

  body.brand-experience .auth-card .demo-entry-grid {
    grid-template-columns: 1fr;
  }

  body.brand-experience .sidebar,
  body.brand-experience .agent-sidebar {
    background-position: center 28%;
  }

  body.brand-experience .topbar {
    padding-inline: 12px;
  }

  body.brand-experience .workspace-tabs,
  body.brand-experience .content-shell,
  body.brand-experience .agent-main,
  body.brand-experience .teacher-inbox-page {
    padding-inline: 12px;
  }

  body.brand-experience .customer-shell,
  body.brand-experience .clone-shell,
  body.brand-experience .registration-panel,
  body.brand-experience .registration-hero {
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  body.brand-experience .simple-entry-head,
  body.brand-experience .customer-chat-head {
    background-position: center 24%;
  }

  body.brand-experience .agent-login-card,
  body.brand-experience .login-card,
  body.brand-experience .clone-login-card {
    width: min(100% - 24px, 520px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lx-scanline { display: none; }
  .lx-data-rain { opacity: 0.04; }
  body.brand-experience *,
  body.brand-experience *::before,
  body.brand-experience *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}