* {
  box-sizing: border-box;
  letter-spacing: 0;
}

:root {
  color-scheme: light;
  --bg: #eef6ff;
  --ink: #0b1220;
  --ink-soft: #253247;
  --muted: #657389;
  --line: rgba(148, 170, 203, 0.32);
  --line-strong: rgba(95, 125, 170, 0.44);
  --glass: rgba(255, 255, 255, 0.7);
  --glass-strong: rgba(255, 255, 255, 0.84);
  --glass-dark: rgba(7, 16, 34, 0.76);
  --blue: #1677ff;
  --cyan: #19c2ff;
  --violet: #725cff;
  --mint: #20d6a3;
  --coral: #ff765f;
  --danger: #c33d52;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(28, 72, 132, 0.16);
  --inner-light: inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(25, 194, 255, 0.22), transparent 28%),
    radial-gradient(circle at 86% 8%, rgba(114, 92, 255, 0.18), transparent 30%),
    linear-gradient(145deg, #f8fbff 0%, var(--bg) 42%, #f4f9ff 100%);
  color: var(--ink);
  font-family: "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
}

body::before {
  position: fixed;
  inset: -26%;
  z-index: -2;
  content: "";
  background:
    conic-gradient(from 45deg, rgba(22, 119, 255, 0.16), transparent 18%, rgba(32, 214, 163, 0.12), transparent 48%, rgba(114, 92, 255, 0.16), transparent 72%),
    linear-gradient(115deg, rgba(255, 255, 255, 0.18), transparent 42%, rgba(25, 194, 255, 0.12));
  filter: blur(42px);
  animation: glassLight 18s ease-in-out infinite alternate;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.38) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.58), transparent 72%);
}

@keyframes glassLight {
  from {
    transform: translate3d(-2%, -1%, 0) rotate(0deg);
  }
  to {
    transform: translate3d(2%, 1.5%, 0) rotate(5deg);
  }
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.shell {
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(210px, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  padding: 16px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(247, 251, 255, 0.64);
  box-shadow: var(--inner-light), 0 18px 42px rgba(24, 68, 125, 0.08);
  backdrop-filter: blur(22px) saturate(145%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #0b1220 0%, #1677ff 58%, #19c2ff 100%);
  color: white;
  font-weight: 900;
  box-shadow: 0 16px 32px rgba(22, 119, 255, 0.28);
}

.brand h1 {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.2;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  min-width: 0;
  overflow-x: auto;
}

.nav-item {
  height: 38px;
  padding: 0 16px;
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  font-weight: 800;
  white-space: nowrap;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
}

.nav-item.active {
  background: rgba(9, 18, 34, 0.92);
  color: #ffffff;
  box-shadow: 0 14px 28px rgba(8, 20, 42, 0.18);
}

.local-status {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.status-dot,
.signal {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 18px rgba(32, 214, 163, 0.76);
}

.main {
  width: min(1460px, 100%);
  margin: 0 auto;
  padding: 28px clamp(16px, 4vw, 56px) 42px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.eyebrow,
.hero-kicker {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 8px;
}

.topbar h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
}

.top-actions,
.inline-actions,
.input-actions,
.output-actions,
.settings-actions,
.preset-row,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.copilot-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.62fr);
  gap: 24px;
  overflow: hidden;
  min-height: 300px;
  margin-bottom: 16px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(8, 17, 34, 0.94), rgba(12, 30, 60, 0.84) 54%, rgba(20, 98, 168, 0.72)),
    radial-gradient(circle at 12% 20%, rgba(25, 194, 255, 0.28), transparent 34%);
  box-shadow: 0 28px 86px rgba(7, 21, 45, 0.26);
  color: white;
}

.copilot-hero::after {
  position: absolute;
  inset: auto -12% -48% 24%;
  height: 260px;
  content: "";
  background: radial-gradient(circle, rgba(25, 194, 255, 0.34), transparent 62%);
  filter: blur(16px);
  animation: heroGlow 9s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  from {
    transform: translateX(-3%);
  }
  to {
    transform: translateX(4%);
  }
}

.hero-copy,
.live-console {
  position: relative;
  z-index: 1;
}

.hero-copy h3 {
  max-width: 780px;
  margin: 12px 0 12px;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.04;
}

.hero-copy p {
  max-width: 760px;
  margin: 0 0 20px;
  color: rgba(233, 241, 255, 0.84);
  font-size: 16px;
  line-height: 1.72;
}

.live-console {
  align-self: stretch;
  display: grid;
  align-content: space-between;
  gap: 16px;
  min-height: 250px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 24px 56px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(20px) saturate(130%);
}

.console-head,
.signal-row,
.console-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.console-head span,
.signal-row small,
.console-stats span {
  color: rgba(232, 242, 255, 0.74);
  font-size: 12px;
}

.signal-row {
  justify-content: flex-start;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.signal {
  flex: 0 0 auto;
  background: rgba(255, 255, 255, 0.45);
  box-shadow: none;
}

.signal.active {
  background: var(--mint);
  box-shadow: 0 0 20px rgba(32, 214, 163, 0.76);
}

.signal-row b,
.signal-row small {
  display: block;
}

.console-stats {
  align-items: stretch;
}

.console-stats div {
  flex: 1;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.09);
}

.console-stats strong,
.console-stats span {
  display: block;
}

.console-stats strong {
  margin-bottom: 5px;
  font-size: 20px;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.feature-strip div {
  min-height: 100px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.66);
  box-shadow: var(--inner-light), 0 18px 44px rgba(29, 79, 142, 0.09);
  backdrop-filter: blur(18px) saturate(140%);
}

.feature-strip b,
.feature-strip span {
  display: block;
}

.feature-strip b {
  margin-bottom: 8px;
  color: var(--ink);
}

.feature-strip span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.58;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 0.92fr) minmax(440px, 1.08fr);
  gap: 18px;
  align-items: stretch;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  box-shadow: var(--inner-light), var(--shadow);
  backdrop-filter: blur(20px) saturate(150%);
}

.input-panel,
.output-panel,
.settings-panel,
.full-panel {
  padding: 18px;
}

.full-panel,
.settings-panel {
  max-width: 1120px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-head h3 {
  margin: 0;
  font-size: 17px;
}

.meta {
  color: var(--muted);
  font-size: 12px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

input,
select {
  height: 42px;
  padding: 0 12px;
}

textarea {
  min-height: 316px;
  resize: vertical;
  padding: 13px;
  line-height: 1.62;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.16), 0 16px 32px rgba(22, 119, 255, 0.12);
}

.control-grid,
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.settings-grid {
  margin: 16px 0;
}

.drop-zone {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 76px;
  margin-top: 12px;
  padding: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(244, 249, 255, 0.72);
  box-shadow: var(--inner-light);
}

.drop-zone.dragover {
  border-color: var(--blue);
  background: rgba(227, 242, 255, 0.84);
}

.drop-zone input {
  display: none;
}

.drop-zone strong,
.drop-zone span {
  display: block;
}

.drop-zone span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.thumb {
  position: relative;
  height: 92px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(238, 246, 255, 0.76);
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: zoom-in;
}

.thumb button {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(18, 22, 33, 0.82);
  color: white;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: rgba(5, 10, 18, 0.88);
  backdrop-filter: blur(14px);
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox img {
  max-width: calc(100vw - 48px);
  max-height: calc(100vh - 110px);
  transform: scale(var(--preview-scale, 1));
  transform-origin: center;
  transition: transform 140ms ease;
  object-fit: contain;
  user-select: none;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.48);
}

.lightbox-close,
.lightbox-controls button {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(19, 29, 45, 0.82);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.24);
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 24px;
}

.lightbox-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
}

.lightbox-controls button {
  min-width: 42px;
  height: 38px;
  padding: 0 13px;
  border-radius: 6px;
}

.answer {
  min-height: 538px;
  max-height: calc(100vh - 242px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 253, 255, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.84);
}

.empty-state {
  margin: 0;
  padding: 16px;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.68;
  font-family: inherit;
  font-size: 14px;
}

.document-answer {
  padding: 18px 20px 22px;
  color: #151922;
  line-height: 1.74;
  font-size: 15px;
}

.document-answer h4 {
  margin: 18px 0 8px;
  color: #0b63ce;
  font-size: 16px;
  font-weight: 900;
}

.document-answer h4:first-child {
  margin-top: 0;
}

.document-answer p {
  margin: 6px 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.doc-code {
  margin: 8px 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.7);
  color: #222936;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "Cascadia Mono", "Consolas", "Microsoft YaHei", monospace;
  font-size: 13px;
  line-height: 1.62;
}

.doc-spacer {
  height: 8px;
}

.output-actions,
.input-actions {
  margin-top: 12px;
}

.primary,
.ghost,
.small {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  min-width: 88px;
  padding: 0 14px;
  border-radius: var(--radius);
  font-weight: 900;
}

.primary {
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: white;
  box-shadow: 0 16px 34px rgba(22, 119, 255, 0.26);
}

.primary:hover {
  background: linear-gradient(135deg, #0d63da, #5d48ef);
}

.ghost {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.6);
  color: var(--ink);
  box-shadow: var(--inner-light);
}

.copilot-hero .ghost {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.12);
  color: white;
}

.ghost:hover,
.small:hover {
  border-color: var(--blue);
  color: #0b63ce;
}

.copilot-hero .ghost:hover {
  color: white;
  background: rgba(255, 255, 255, 0.18);
}

.small {
  height: 34px;
  min-width: 72px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink);
  font-size: 13px;
}

.danger {
  color: var(--danger);
}

.search {
  margin-bottom: 14px;
}

.list {
  display: grid;
  gap: 10px;
}

.list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.64);
  box-shadow: var(--inner-light);
}

.row-title {
  margin: 0 0 6px;
  overflow: hidden;
  color: var(--ink);
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.row-meta {
  color: var(--muted);
  font-size: 12px;
}

.row-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.settings-panel {
  margin: 0 auto;
}

.account-panel {
  margin-bottom: 16px;
}

.feedback-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 2px 0 16px;
  padding: 14px;
  border: 1px solid rgba(95, 125, 170, 0.34);
  border-radius: var(--radius);
  background: rgba(244, 249, 255, 0.76);
  box-shadow: var(--inner-light), 0 14px 34px rgba(29, 79, 142, 0.08);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.feedback-card strong,
.feedback-card p {
  display: block;
  margin: 0;
}

.feedback-card strong {
  color: var(--ink);
  font-size: 14px;
}

.feedback-card p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.feedback-icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 3px;
  border-radius: 999px;
  background: #9aa7ba;
  box-shadow: 0 0 0 5px rgba(154, 167, 186, 0.14);
}

.feedback-card[data-status="pending"] {
  border-color: rgba(22, 119, 255, 0.52);
  background: rgba(229, 242, 255, 0.86);
  transform: translateY(-1px);
}

.feedback-card[data-status="pending"] .feedback-icon {
  background: var(--blue);
  box-shadow: 0 0 0 5px rgba(22, 119, 255, 0.16), 0 0 22px rgba(22, 119, 255, 0.42);
  animation: pulseStatus 1.1s ease-in-out infinite;
}

.feedback-card[data-status="success"] {
  border-color: rgba(32, 214, 163, 0.56);
  background: rgba(231, 255, 247, 0.88);
  box-shadow: var(--inner-light), 0 18px 40px rgba(32, 214, 163, 0.12);
}

.feedback-card[data-status="success"] .feedback-icon {
  background: var(--mint);
  box-shadow: 0 0 0 5px rgba(32, 214, 163, 0.16), 0 0 22px rgba(32, 214, 163, 0.48);
}

.feedback-card[data-status="error"] {
  border-color: rgba(195, 61, 82, 0.48);
  background: rgba(255, 239, 242, 0.88);
}

.feedback-card[data-status="error"] .feedback-icon {
  background: var(--danger);
  box-shadow: 0 0 0 5px rgba(195, 61, 82, 0.14), 0 0 18px rgba(195, 61, 82, 0.34);
}

.settings-panel[data-status="success"] {
  border-color: rgba(32, 214, 163, 0.48);
}

.settings-panel[data-status="error"] {
  border-color: rgba(195, 61, 82, 0.42);
}

@keyframes pulseStatus {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.24);
  }
}

.preset-row {
  padding-bottom: 4px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 12, 24, 0.42);
  backdrop-filter: blur(14px);
}

.modal-backdrop[hidden] {
  display: none;
}

.status-modal {
  width: min(430px, 100%);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 28px 90px rgba(7, 21, 45, 0.32), var(--inner-light);
  text-align: center;
  backdrop-filter: blur(22px) saturate(150%);
}

.modal-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 0 8px rgba(32, 214, 163, 0.15), 0 18px 38px rgba(32, 214, 163, 0.24);
}

.modal-icon::after {
  content: "";
  width: 18px;
  height: 10px;
  border-bottom: 3px solid #ffffff;
  border-left: 3px solid #ffffff;
  transform: rotate(-45deg) translate(1px, -1px);
}

.status-modal h3 {
  margin: 0;
  font-size: 22px;
}

.status-modal p {
  margin: 10px 0 18px;
  color: var(--muted);
  line-height: 1.65;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: var(--radius);
  background: rgba(9, 18, 34, 0.9);
  color: white;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .copilot-hero,
  .workspace,
  .feature-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .sidebar {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 12px;
  }

  .nav {
    justify-content: flex-start;
  }

  .local-status {
    display: none;
  }

  .main {
    padding: 18px 16px 28px;
  }

  .answer {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .topbar,
  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar {
    margin-bottom: 12px;
  }

  .topbar h2 {
    font-size: 28px;
  }

  .copilot-hero {
    min-height: 0;
    gap: 14px;
    padding: 18px;
  }

  .hero-copy h3 {
    margin: 8px 0 10px;
    font-size: 28px;
    line-height: 1.12;
  }

  .hero-copy p {
    margin-bottom: 14px;
    font-size: 14px;
    line-height: 1.58;
  }

  .live-console {
    min-height: 0;
    gap: 10px;
    padding: 14px;
  }

  .signal-row {
    padding: 10px;
  }

  .console-stats {
    display: none;
  }

  .feature-strip {
    display: none;
  }

  .top-actions,
  .inline-actions,
  .settings-actions,
  .hero-actions {
    width: 100%;
  }

  .top-actions > *,
  .settings-actions > *,
  .hero-actions > * {
    flex: 1 1 120px;
  }

  .control-grid,
  .settings-grid,
  .drop-zone,
  .list-row {
    grid-template-columns: 1fr;
  }
}