/* NIDESHIKE B8: scoped existing public customer-service widget styles. */
.ai-chat-widget .back-to-top {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 90;
  width: 46px;
  height: 46px;
  padding: 0;
  display: grid;
  place-content: center;
  border: 1px solid rgba(233, 111, 95, 0.35);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  color: #d85d50;
  box-shadow: 0 10px 28px rgba(60, 39, 29, 0.16);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 200ms ease,
    visibility 200ms ease,
    transform 200ms ease,
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.ai-chat-widget .back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.ai-chat-widget .back-to-top[hidden] {
  display: none;
}

.ai-chat-widget .back-to-top:hover,
.ai-chat-widget .back-to-top:focus-visible {
  border-color: #e96f5f;
  background: #e96f5f;
  color: #fff;
}

.ai-chat-widget .back-to-top:focus-visible {
  outline: 3px solid rgba(233, 111, 95, 0.36);
  outline-offset: 3px;
}

.ai-chat-widget .back-to-top__arrow {
  display: block;
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
}

.ai-chat-widget .back-to-top__text {
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1;
}

@media (max-width: 640px) {
  .ai-chat-widget .back-to-top {
    right: max(14px, env(safe-area-inset-right));
    bottom: max(18px, env(safe-area-inset-bottom));
    width: 42px;
    height: 42px;
  }
}

.ai-chat-widget,
.ai-chat-widget * {
  box-sizing: border-box;
  letter-spacing: 0;
}

.ai-chat-widget {
  --ai-coral: #e96f5f;
  --ai-coral-dark: #d85d50;
  --ai-ink: #442d25;
  --ai-muted: #88756d;
  --ai-line: #e8e0dc;
  --ai-paper: #fffaf6;
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 96;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
}

.ai-chat-widget .ai-chat-actions {
  display: grid;
  width: 64px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 25px;
  background: rgba(255, 250, 246, 0.96);
  box-shadow: 0 18px 44px rgba(216, 93, 80, 0.28);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.ai-chat-widget .ai-chat-actions:hover,
.ai-chat-widget .ai-chat-actions:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 22px 54px rgba(216, 93, 80, 0.34);
}

.ai-chat-widget .back-to-top {
  position: static;
  right: auto;
  bottom: auto;
  z-index: auto;
  width: 64px;
  height: 48px;
  border: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ai-coral-dark);
  box-shadow: none;
  transform: none;
}

.ai-chat-widget .back-to-top:hover,
.ai-chat-widget .back-to-top:focus-visible {
  background: #fff0e9;
  color: var(--ai-coral-dark);
}

.ai-chat-widget .back-to-top.is-visible + .ai-chat-launcher {
  border-top: 1px solid rgba(255, 255, 255, 0.42);
}

.ai-chat-widget .ai-chat-launcher {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  gap: 0;
  border: 0;
  border-radius: 0;
  background: linear-gradient(135deg, var(--ai-coral), #f0a178);
  color: #fff;
  box-shadow: none;
  cursor: pointer;
  transition: filter 180ms ease, opacity 180ms ease;
}

.ai-chat-widget .ai-chat-launcher:hover,
.ai-chat-widget .ai-chat-launcher:focus-visible {
  filter: saturate(1.05);
}

.ai-chat-widget .ai-chat-launcher.is-open {
  opacity: 0.9;
}

.ai-chat-widget .ai-chat-launcher__text {
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1;
}

.ai-chat-widget .ai-chat-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 14px);
  width: min(380px, calc(100vw - 36px));
  height: min(600px, calc(100svh - 118px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 24px;
  background: #f6f0ea;
  box-shadow: 0 26px 76px rgba(68, 45, 37, 0.26);
}

.ai-chat-widget .ai-chat-panel[hidden] {
  display: none;
}

.ai-chat-widget .customer-service-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 14px);
  width: min(340px, calc(100vw - 36px));
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 24px;
  background: #fffaf6;
  box-shadow: 0 24px 70px rgba(68, 45, 37, 0.22);
}

.ai-chat-widget .customer-service-panel[hidden] {
  display: none;
}

.ai-chat-widget .customer-service-head {
  min-height: 72px;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 255, 255, 0.86), transparent 42%),
    linear-gradient(135deg, #fffaf6, #f8e5da);
  border-bottom: 1px solid var(--ai-line);
  color: var(--ai-ink);
}

.ai-chat-widget .customer-service-head strong {
  display: block;
  font-size: 16px;
  line-height: 1.3;
}

.ai-chat-widget .customer-service-head p {
  margin: 5px 0 0;
  color: var(--ai-muted);
  font-size: 12px;
  line-height: 1.5;
}

.ai-chat-widget .customer-service-close {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(68, 45, 37, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ai-ink);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}

.ai-chat-widget .customer-service-menu,
.ai-chat-widget .customer-service-body {
  padding: 14px;
  display: grid;
  gap: 10px;
  background:
    radial-gradient(circle at 86% 0%, rgba(233, 111, 95, 0.08), transparent 38%),
    #fffaf6;
}

.ai-chat-widget .customer-service-option {
  width: 100%;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(142, 103, 86, 0.15);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ai-ink);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 10px 28px rgba(68, 45, 37, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.ai-chat-widget .customer-service-option:hover,
.ai-chat-widget .customer-service-option:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(233, 111, 95, 0.34);
  box-shadow: 0 14px 34px rgba(216, 93, 80, 0.12);
}

.ai-chat-widget .customer-service-option__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #fff0e9;
  color: var(--ai-coral-dark);
  font-size: 15px;
  font-weight: 900;
}

.ai-chat-widget .customer-service-option__copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.ai-chat-widget .customer-service-option__copy strong {
  font-size: 15px;
  line-height: 1.25;
}

.ai-chat-widget .customer-service-option__copy span {
  color: var(--ai-muted);
  font-size: 12px;
  line-height: 1.45;
}

.ai-chat-widget .customer-service-qr-card {
  min-height: 190px;
  display: grid;
  place-items: center;
  padding: 14px;
  border: 1px dashed rgba(142, 103, 86, 0.24);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.ai-chat-widget .customer-service-qr-card img {
  width: min(190px, 100%);
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(68, 45, 37, 0.09);
}

.ai-chat-widget .customer-service-empty {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 240, 233, 0.74);
  color: var(--ai-muted);
  font-size: 13px;
  line-height: 1.55;
  text-align: center;
}

.ai-chat-widget .customer-service-primary,
.ai-chat-widget .customer-service-secondary {
  width: 100%;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
  text-decoration: none;
}

.ai-chat-widget .customer-service-primary {
  border: 0;
  background: linear-gradient(135deg, var(--ai-coral), #f19b74);
  color: #fff;
  box-shadow: 0 12px 26px rgba(216, 93, 80, 0.24);
}

.ai-chat-widget .customer-service-primary.is-disabled {
  opacity: 0.62;
  cursor: not-allowed;
  box-shadow: none;
}

.ai-chat-widget .customer-service-secondary {
  border: 1px solid rgba(142, 103, 86, 0.18);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ai-muted);
}

.ai-chat-widget .customer-service-phone-list {
  display: grid;
  gap: 9px;
}

.ai-chat-widget .customer-service-phone-link {
  display: grid;
  gap: 4px;
  padding: 13px 14px;
  border: 1px solid rgba(142, 103, 86, 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--ai-ink);
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(68, 45, 37, 0.06);
}

.ai-chat-widget .customer-service-phone-label {
  color: var(--ai-muted);
  font-size: 12px;
  line-height: 1.2;
}

.ai-chat-widget .customer-service-phone-number {
  font-size: 19px;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.ai-chat-widget .ai-chat-head {
  min-height: 74px;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  background: linear-gradient(135deg, #fffaf6, #f8e7dc);
  border-bottom: 1px solid var(--ai-line);
  color: var(--ai-ink);
}

.ai-chat-widget .ai-chat-head strong {
  display: block;
  font-size: 16px;
  line-height: 1.3;
}

.ai-chat-widget .ai-chat-close {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(68, 45, 37, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ai-ink);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}

.ai-chat-widget .ai-chat-messages {
  min-height: 0;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 255, 255, 0.68), transparent 36%),
    #f5ede6;
}

.ai-chat-widget .ai-chat-message {
  display: flex;
}

.ai-chat-widget .ai-chat-message.is-user {
  justify-content: flex-end;
}

.ai-chat-widget .ai-chat-bubble {
  max-width: min(82%, 280px);
  padding: 11px 13px;
  border-radius: 16px 16px 16px 5px;
  background: #fff;
  color: var(--ai-ink);
  box-shadow: 0 8px 22px rgba(68, 45, 37, 0.07);
  font-size: 14px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.ai-chat-widget .ai-chat-message.is-user .ai-chat-bubble {
  border-radius: 16px 16px 5px 16px;
  background: var(--ai-coral);
  color: #fff;
}

.ai-chat-widget .ai-chat-message.is-pending .ai-chat-bubble {
  color: var(--ai-muted);
  background: rgba(255, 255, 255, 0.72);
}

.ai-chat-widget .ai-chat-form {
  padding: 12px;
  border-top: 1px solid rgba(232, 224, 220, 0.9);
  background:
    linear-gradient(180deg, rgba(255, 250, 246, 0.92), rgba(255, 244, 238, 0.98)),
    var(--ai-paper);
}

.ai-chat-widget .ai-chat-composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 9px;
  padding: 10px;
  border: 1px solid rgba(142, 103, 86, 0.16);
  border-radius: 21px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 250, 246, 0.96)),
    #fff;
  box-shadow:
    0 12px 34px rgba(68, 45, 37, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.ai-chat-widget .ai-chat-composer:focus-within {
  border-color: rgba(233, 111, 95, 0.42);
  box-shadow:
    0 16px 42px rgba(216, 93, 80, 0.13),
    0 0 0 4px rgba(233, 111, 95, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transform: translateY(-1px);
}

.ai-chat-widget .ai-chat-input-shell {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}

.ai-chat-widget .ai-chat-input-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: #fff0e9;
  color: var(--ai-coral-dark);
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgba(233, 111, 95, 0.1);
}

.ai-chat-widget .ai-chat-input {
  width: 100%;
  min-height: 28px;
  max-height: 112px;
  padding: 3px 2px 4px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ai-ink);
  outline: 0;
  resize: none;
  overflow-y: auto;
  font: inherit;
  font-size: 14px;
  line-height: 1.55;
  scrollbar-width: thin;
  scrollbar-color: rgba(233, 111, 95, 0.38) transparent;
}

.ai-chat-widget .ai-chat-input::placeholder {
  color: #b7a49b;
}

.ai-chat-widget .ai-chat-input::-webkit-scrollbar {
  width: 5px;
}

.ai-chat-widget .ai-chat-input::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(233, 111, 95, 0.28);
}

.ai-chat-widget .ai-chat-input:focus {
  box-shadow: none;
}

.ai-chat-widget .ai-chat-send {
  min-width: 76px;
  min-height: 38px;
  padding: 0 17px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--ai-coral), #f19b74);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(216, 93, 80, 0.24);
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.ai-chat-widget .ai-chat-send:hover:not(:disabled),
.ai-chat-widget .ai-chat-send:focus-visible:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(216, 93, 80, 0.3);
  filter: saturate(1.04);
}

.ai-chat-widget .ai-chat-send:disabled,
.ai-chat-widget .ai-chat-input:disabled {
  opacity: 0.62;
  cursor: wait;
}

.ai-chat-widget .ai-chat-launcher:focus-visible,
.ai-chat-widget .ai-chat-close:focus-visible,
.ai-chat-widget .ai-chat-send:focus-visible,
.ai-chat-widget .customer-service-close:focus-visible,
.ai-chat-widget .customer-service-option:focus-visible,
.ai-chat-widget .customer-service-primary:focus-visible,
.ai-chat-widget .customer-service-secondary:focus-visible,
.ai-chat-widget .customer-service-phone-link:focus-visible {
  outline: 3px solid rgba(233, 111, 95, 0.28);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  .ai-chat-widget {
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
  }

  .ai-chat-widget .ai-chat-actions {
    width: 58px;
    border-radius: 22px;
  }

  .ai-chat-widget .back-to-top {
    width: 58px;
    height: 44px;
  }

  .ai-chat-widget .ai-chat-launcher {
    width: 58px;
    height: 58px;
  }

  .ai-chat-widget .ai-chat-panel {
    right: 0;
    bottom: calc(100% + 12px);
    width: min(360px, calc(100vw - 24px));
    height: min(560px, calc(100svh - 94px));
    border-radius: 22px;
  }

  .ai-chat-widget .customer-service-panel {
    right: 0;
    bottom: calc(100% + 12px);
    width: min(336px, calc(100vw - 24px));
    border-radius: 22px;
  }

  .ai-chat-widget .customer-service-menu,
  .ai-chat-widget .customer-service-body {
    padding: 12px;
  }

  .ai-chat-widget .ai-chat-form {
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }

  .ai-chat-widget .ai-chat-composer {
    border-radius: 19px;
    gap: 8px;
  }

  .ai-chat-widget .ai-chat-send {
    min-width: 64px;
    padding: 0 13px;
  }
}

/* B8 integration: preserve the footer inquiry dock and modal focus layer. */
.ai-chat-widget {
  --nds-service-bottom: calc(80px + env(safe-area-inset-bottom));
  bottom: var(--nds-service-bottom);
  z-index: 50;
  line-height: 1.5;
}
.ai-chat-widget .ai-chat-panel {
  height: min(560px, calc(100vh - var(--nds-service-bottom) - 140px));
  height: min(560px, calc(100dvh - var(--nds-service-bottom) - 140px));
}
.ai-chat-widget .customer-service-panel {
  max-height: calc(100vh - var(--nds-service-bottom) - 140px);
  max-height: calc(100dvh - var(--nds-service-bottom) - 140px);
  overflow-y: auto;
}
body.is-locked .ai-chat-widget {
  display: none !important;
}
@media (min-width: 960px) {
  .ai-chat-widget {
    --nds-service-bottom: max(24px, env(safe-area-inset-bottom));
  }
  body.has-items .ai-chat-widget {
    --nds-service-bottom: calc(88px + env(safe-area-inset-bottom));
  }
}
@media print {
  .ai-chat-widget { display: none !important; }
}