:root {
  --c66-ink: #182236;
  --c66-muted: #657187;
  --c66-paper: #fffaf4;
  --c66-card: #ffffff;
  --c66-accent: #ff6b35;
  --c66-accent-2: #f05a24;
  --c66-accent-soft: #fff4ed;
  --c66-accent-line: #ffc9b2;
  --c66-line: #f0e6dc;
  --c66-shadow: 0 24px 60px rgba(73, 44, 24, 0.11);
}

html {
  min-height: 100%;
  background: var(--c66-paper);
}

body {
  min-height: 100vh;
  color: var(--c66-ink);
  background-color: var(--c66-paper);
  background-image:
    radial-gradient(circle at 8% 4%, rgba(255, 107, 53, 0.14), transparent 28%),
    radial-gradient(circle at 94% 18%, rgba(255, 160, 98, 0.1), transparent 30%);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

header {
  position: relative;
  z-index: 10;
  width: calc(100% - 36px);
  max-width: 1180px;
  margin: 18px auto 0;
  padding: 13px 16px;
  box-sizing: border-box;
  border: 1px solid rgba(240, 230, 220, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 32px rgba(73, 44, 24, 0.06);
  backdrop-filter: blur(14px);
}

.header-service {
  display: inline-flex;
  min-height: 34px;
  padding: 0 12px;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(240, 230, 220, 0.92);
  border-radius: 999px;
  color: #786d65;
  background: rgba(255, 250, 246, 0.88);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.service-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.11);
}

.logo {
  color: var(--c66-ink);
  font-size: 17px;
  letter-spacing: 0.02em;
}

.logo-icon {
  display: inline-grid;
  width: 34px;
  height: 34px;
  margin-right: 10px;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(135deg, var(--c66-accent), var(--c66-accent-2));
  box-shadow: 0 8px 18px rgba(255, 107, 53, 0.24);
  font-size: 11px;
  line-height: 1;
}

.header-actions {
  gap: 10px;
}

.header-actions .nav-card {
  display: flex;
  width: 178px;
  min-height: 102px;
  padding: 13px 16px;
  box-sizing: border-box;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  border: 1px solid var(--c66-line);
  border-radius: 16px;
  color: var(--c66-ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 28px rgba(73, 44, 24, 0.07);
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.header-actions .nav-card:hover,
.header-actions .nav-card:focus-visible {
  color: var(--c66-ink);
  border-color: var(--c66-accent-line);
  box-shadow: 0 14px 32px rgba(240, 90, 36, 0.13);
  transform: translateY(-2px);
}

body:has(#query-ui:not(.hidden)) .nav-card-query {
  border-color: var(--c66-accent-line);
  background: #fff8f3;
}

.nav-card-icon {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 10px;
  place-items: center;
  border-radius: 11px;
}

.nav-card-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.nav-card-query .nav-card-icon {
  color: #2563eb;
  background: #eef4ff;
}

.nav-card-exchange .nav-card-icon {
  color: var(--c66-accent-2);
  background: var(--c66-accent-soft);
}

.header-actions .nav-card strong {
  display: block;
  font-size: 15px;
  line-height: 1.25;
}

.header-actions .nav-card small {
  display: block;
  margin-top: 4px;
  color: #929aac;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
}

#main-ui.container {
  display: grid;
  grid-template-columns: 282px minmax(0, 1fr) 250px;
  grid-template-areas:
    "hero hero hero"
    "guide panel stock";
  column-gap: 18px;
  row-gap: 26px;
  max-width: 1180px;
  margin: clamp(28px, 4.5vh, 48px) auto 0;
  padding: 0 18px;
  text-align: left;
  align-items: start;
}

.workspace-hero {
  position: relative;
  grid-area: hero;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  min-width: 0;
  padding: 28px 30px;
  align-items: center;
  gap: 30px;
  overflow: hidden;
  border: 1px solid rgba(240, 230, 220, 0.94);
  border-radius: 28px;
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 107, 53, 0.11), transparent 32%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 249, 244, 0.91));
  box-shadow: 0 18px 48px rgba(73, 44, 24, 0.07);
}

.workspace-hero-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.workspace-actions {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  align-items: stretch;
  justify-content: flex-end;
}

#main-ui .main-title {
  margin: 0;
  color: var(--c66-ink);
  font-size: clamp(38px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

#main-ui .main-title::before {
  content: "66CHONG · CHATGPT";
  display: block;
  margin-bottom: 14px;
  color: var(--c66-accent);
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.16em;
}

#main-ui .main-sub {
  max-width: 390px;
  margin: 16px 0 0;
  color: var(--c66-muted);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
}

#main-ui .stock-wrapper {
  grid-area: stock;
  display: grid;
  grid-template-columns: 1fr;
  align-content: start;
  align-self: start;
  height: 322px;
  gap: 9px;
  width: 100%;
  margin: 0;
  padding: 18px;
  box-sizing: border-box;
  border: 1px solid var(--c66-line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 44px rgba(73, 44, 24, 0.08);
}

#main-ui .stock-wrapper::before {
  content: "实时库存";
  display: block;
  margin-bottom: 3px;
  color: var(--c66-ink);
  font-size: 14px;
  font-weight: 850;
}

#main-ui .stock-pill {
  min-width: 0;
  min-height: 54px;
  padding: 10px 12px;
  box-sizing: border-box;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  justify-content: center;
  gap: 2px;
  border-radius: 13px;
  box-shadow: 0 8px 22px rgba(73, 44, 24, 0.05);
  font-size: 11px;
}

#main-ui .sp-name {
  overflow: hidden;
  max-width: 100%;
  color: var(--c66-ink);
  font-family: inherit;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#main-ui .divider {
  display: none;
}

#main-ui .operation-guide {
  grid-area: guide;
  min-width: 0;
  padding: 20px 18px;
  box-sizing: border-box;
  border: 1px solid rgba(240, 230, 220, 0.94);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 44px rgba(73, 44, 24, 0.08);
}

.guide-heading {
  display: flex;
  padding-bottom: 16px;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #f2e9e1;
  color: var(--c66-ink);
  font-size: 17px;
}

.guide-heading-icon {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 10px;
  color: var(--c66-accent-2);
  background: var(--c66-accent-soft);
}

.guide-heading-icon svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.guide-list {
  display: grid;
  margin: 20px 0 0;
  padding: 0;
  gap: 20px;
  list-style: none;
}

.guide-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
}

.guide-num {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  color: var(--c66-accent-2);
  background: var(--c66-accent-soft);
  font-size: 13px;
  font-weight: 850;
}

.guide-content {
  min-width: 0;
}

.guide-content > strong {
  display: block;
  padding-top: 4px;
  color: var(--c66-ink);
  font-size: 14px;
  line-height: 1.45;
}

.guide-content p {
  margin: 4px 0 0;
  color: var(--c66-muted);
  font-size: 12px;
  line-height: 1.65;
}

.guide-link {
  display: inline-flex;
  min-height: 32px;
  margin-top: 9px;
  padding: 0 12px;
  align-items: center;
  gap: 5px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: #fff;
  background: linear-gradient(135deg, var(--c66-accent), var(--c66-accent-2));
  box-shadow: 0 7px 16px rgba(240, 90, 36, 0.17);
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.guide-link-secondary {
  color: var(--c66-accent-2);
  border-color: var(--c66-accent-line);
  background: #fff7f1;
  box-shadow: none;
}

.guide-link:hover,
.guide-link:focus-visible {
  color: #fff;
  box-shadow: 0 10px 20px rgba(240, 90, 36, 0.22);
  transform: translateY(-1px);
}

.guide-link-secondary:hover,
.guide-link-secondary:focus-visible {
  color: var(--c66-accent-2);
}

.guide-notice {
  margin-top: 20px;
  padding: 13px 14px;
  border: 1px solid #f2d39d;
  border-radius: 13px;
  background: #fffaf0;
}

.guide-notice strong {
  display: block;
  color: #c96a12;
  font-size: 12px;
}

.guide-notice p {
  margin: 5px 0 0;
  color: #7c6650;
  font-size: 11px;
  line-height: 1.65;
}

#main-ui .steps {
  display: none;
  grid-area: guide;
  grid-template-columns: 1fr;
  align-items: stretch;
  gap: 7px;
  width: 100%;
  margin: 0;
}

#main-ui .step {
  min-width: 0;
  min-height: 46px;
  padding: 8px 11px;
  flex-direction: row;
  justify-content: flex-start;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 13px;
  background: transparent;
}

#main-ui .step.active {
  border-color: var(--c66-accent-line);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 8px 22px rgba(73, 44, 24, 0.06);
}

#main-ui .step.inactive {
  border-color: rgba(240, 230, 220, 0.92);
  background: rgba(255, 255, 255, 0.48);
}

#main-ui .step .s-num {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  margin: 0;
  background: #eee7e1;
  color: #8f8176;
  font-size: 12px;
}

#main-ui .step.active .s-num {
  color: #fff;
  background: linear-gradient(135deg, var(--c66-accent), var(--c66-accent-2));
  box-shadow: 0 5px 12px rgba(255, 107, 53, 0.2);
}

#main-ui .step .s-txt,
#main-ui .step.inactive .s-txt {
  color: var(--c66-muted);
  font-size: 13px;
}

#main-ui .step.active .s-txt {
  color: var(--c66-ink);
}

#main-ui .s-line {
  display: none;
}

#main-ui .panel {
  position: relative;
  grid-area: panel;
  width: 100%;
  max-width: none;
  min-height: 322px;
  margin: 0;
  padding: clamp(28px, 4vw, 44px);
  box-sizing: border-box;
  border: 1px solid var(--c66-line);
  border-radius: 26px;
  background: var(--c66-card);
  box-shadow: var(--c66-shadow);
  text-align: left;
}

#main-ui .panel::before,
#query-ui .query-card::before {
  content: "SECURE SERVICE";
  display: inline-flex;
  margin-bottom: 24px;
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--c66-accent-2);
  background: var(--c66-accent-soft);
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.12em;
}

.panel-label {
  margin-bottom: 12px;
  color: var(--c66-ink);
  font-size: 18px;
  line-height: 1.45;
}

input[type="text"],
textarea,
.query-textarea {
  color: var(--c66-ink);
  border: 1px solid #e3d8cd;
  border-radius: 13px;
  background: #fffdfa;
}

input[type="text"] {
  min-height: 56px;
  padding: 15px 17px;
}

input[type="text"]:focus,
textarea:focus,
.query-textarea:focus {
  border-color: var(--c66-accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.12);
}

.btn-grad,
.btn-solid,
.m-btn-blue {
  color: #fff;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--c66-accent), var(--c66-accent-2));
  box-shadow: 0 12px 28px rgba(255, 107, 53, 0.24);
}

.btn-grad {
  padding: 16px;
  font-size: 16px;
}

.btn-grad:hover,
.btn-solid:hover,
.m-btn-blue:hover {
  opacity: 1;
  transform: translateY(-1px);
  box-shadow: 0 15px 30px rgba(255, 107, 53, 0.29);
}

.btn-outline {
  color: var(--c66-accent-2);
  border-color: var(--c66-accent-line);
  border-radius: 13px;
  background: var(--c66-accent-soft);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  color: #963814;
  border-color: var(--c66-accent);
  background: #fee7dc;
}

.security-note {
  color: #8f431f;
  border-color: #f7cfba;
  border-radius: 12px;
  background: #fff8f3;
}

.account-show {
  color: var(--c66-accent-2);
  border-color: var(--c66-line);
  border-radius: 13px;
  background: #fffaf6;
}

.spinner {
  border-top-color: var(--c66-accent);
}

.progress-bar {
  background: linear-gradient(90deg, #ff8c5a, var(--c66-accent-2));
}

.modal-mask {
  background: rgba(24, 34, 54, 0.46);
  backdrop-filter: blur(7px);
}

.modal {
  border: 1px solid var(--c66-line);
  border-radius: 22px;
  box-shadow: var(--c66-shadow);
}

#query-ui.container:not(.hidden) {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "query-hero"
    "query-panel";
  row-gap: 26px;
  max-width: 1180px;
  margin: clamp(28px, 4.5vh, 48px) auto 0;
  padding: 0 18px;
  text-align: left;
  align-items: start;
}

#query-ui .query-workspace-hero {
  grid-area: query-hero;
}

#query-ui .main-title {
  margin: 0;
  color: var(--c66-ink);
  font-size: clamp(38px, 4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

#query-ui .main-title::before {
  content: "CARD LOOKUP";
  display: block;
  margin-bottom: 14px;
  color: var(--c66-accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

#query-ui .main-sub {
  margin: 18px 0 0;
  color: var(--c66-muted) !important;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.7;
}

#query-ui .query-card {
  position: relative;
  grid-area: query-panel;
  width: min(100%, 780px);
  max-width: 780px;
  margin: 0 auto;
  padding: clamp(26px, 4vw, 42px);
  border-color: var(--c66-line);
  border-radius: 26px;
  box-shadow: var(--c66-shadow);
}

.q-action-btn,
.r-exchange-btn {
  color: var(--c66-accent-2);
  border-color: var(--c66-accent-line);
  background: var(--c66-accent-soft);
}

.q-action-btn:hover,
.r-exchange-btn:hover {
  color: #963814;
  border-color: var(--c66-accent);
  background: #fee7dc;
}

.q-tab.active {
  color: #fff;
  background: var(--c66-accent);
}

.result-item:hover {
  border-color: var(--c66-accent-line);
}

footer {
  max-width: 1180px;
  margin: 70px auto 0;
  padding: 0 18px 34px;
  box-sizing: border-box;
}

.f-copy {
  color: var(--c66-muted);
}

.f-link {
  color: var(--c66-accent-2);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline-color: rgba(255, 107, 53, 0.38);
}

@media (max-width: 980px) {
  header {
    width: calc(100% - 24px);
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 15px;
  }

  .logo {
    font-size: 15px;
  }

  .logo-icon {
    width: 31px;
    height: 31px;
    margin-right: 8px;
    border-radius: 10px;
  }

  .header-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    min-width: 0;
    margin-left: 10px;
    flex: 1;
  }

  .header-actions .nav-card {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    width: auto;
    min-width: 0;
    min-height: 46px;
    padding: 6px 7px;
    align-content: center;
    column-gap: 7px;
    border-radius: 11px;
  }

  .header-actions .nav-card-icon {
    grid-row: 1 / 3;
    width: 30px;
    height: 30px;
    margin: 0;
    border-radius: 9px;
  }

  .header-actions .nav-card-icon svg {
    width: 18px;
    height: 18px;
  }

  .header-actions .nav-card strong {
    font-size: 12px;
    white-space: nowrap;
  }

  .header-actions .nav-card small {
    display: none;
  }

  #main-ui.container {
    grid-template-columns: 1fr;
    grid-template-areas:
      "hero"
      "panel"
      "guide"
      "stock";
    gap: 0;
    width: 100%;
    max-width: 620px;
    margin: 34px auto 0;
    padding: 0 16px;
  }

  .workspace-hero {
    grid-template-columns: 1fr;
    padding: 22px 18px 18px;
    gap: 19px;
    border-radius: 22px;
  }

  .workspace-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    margin: 0;
  }

  #main-ui .main-title {
    font-size: clamp(32px, 8.5vw, 36px);
  }

  #main-ui .main-title::before {
    margin-bottom: 11px;
  }

  #main-ui .main-sub {
    margin: 13px 0 0;
    font-size: 14px;
  }

  #main-ui .panel {
    min-height: 0;
    padding: 22px 18px;
    border-radius: 20px;
  }

  #main-ui .panel::before,
  #query-ui .query-card::before {
    margin-bottom: 18px;
  }

  #main-ui .steps {
    display: none;
  }

  #main-ui .operation-guide {
    margin-top: 16px;
    padding: 20px 18px;
    border-radius: 20px;
  }

  .guide-link {
    min-height: 44px;
    padding: 0 15px;
  }

  .guide-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 18px;
  }

  .guide-notice {
    margin-top: 18px;
  }

  #main-ui .step {
    min-height: 42px;
    padding: 7px 10px;
    border-radius: 11px;
  }

  #main-ui .stock-wrapper {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    height: auto;
    margin: 16px 0 0;
    padding: 15px;
  }

  #main-ui .stock-wrapper::before {
    grid-column: 1 / -1;
  }

  #main-ui .stock-pill {
    min-height: 50px;
    padding: 8px 10px;
  }

  .panel-label {
    font-size: 16px;
  }

  .btn-group {
    flex-direction: column;
  }

  #query-ui.container:not(.hidden) {
    grid-template-columns: 1fr;
    grid-template-areas:
      "query-hero"
      "query-panel";
    width: 100%;
    max-width: 620px;
    margin: 34px auto 0;
    padding: 0 16px;
  }

  #query-ui .main-title {
    font-size: clamp(34px, 10vw, 44px);
  }

  #query-ui .main-sub {
    margin: 13px 0 0;
  }

  #query-ui .query-card {
    padding: 22px 18px;
    border-radius: 20px;
  }

  footer {
    margin-top: 46px;
  }
}

@media (max-width: 430px) {
  .header-actions .nav-card.nav-link {
    max-width: none;
    overflow: visible;
    white-space: normal;
  }

  .header-actions .nav-card {
    grid-template-columns: 27px minmax(0, 1fr);
    padding: 5px;
    column-gap: 5px;
  }

  .header-actions .nav-card-icon {
    width: 27px;
    height: 27px;
  }

  .header-actions .nav-card strong {
    font-size: 12px;
  }

  #main-ui .stock-wrapper {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-list {
    grid-template-columns: 1fr;
  }

  #main-ui .stock-wrapper::before {
    grid-column: 1 / -1;
  }

  #main-ui .stock-pill {
    align-items: flex-start;
    flex-direction: column;
  }

  .q-actions,
  .q-stats {
    gap: 8px;
  }
}