:root {
  --bg: #e7f0ff;
  --sidebar: #1e293b;
  --sidebar-soft: #263449;
  --surface: #ffffff;
  --surface-soft: #ebf3ff;
  --border: #cddfff;
  --text: #101828;
  --muted: #667085;
  --primary: #165dff;
  --primary-dark: #0f4ce0;
  --danger: #d92d20;
  --warning: #d97706;
  --success: #16a34a;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
}

a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 18px;
  background: var(--sidebar);
  color: #f8fafc;
  z-index: 30;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: contain;
  background: #fff;
  padding: 4px;
  flex: 0 0 auto;
}

.sidebar-brand strong,
.user-mini strong { display: block; }
.sidebar-brand span,
.user-mini span { display: block; margin-top: 2px; color: #94a3b8; font-size: 12px; }

.side-nav {
  display: grid;
  gap: 6px;
}

.side-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 12px;
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 700;
  transition: background .16s ease, color .16s ease;
}

.side-nav a:hover,
.side-nav a.router-link-active {
  background: var(--sidebar-soft);
  color: #fff;
}

.nav-icon {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  color: #93c5fd;
}

.sidebar-logout {
  width: 100%;
  margin-top: 2px;
  text-align: center;
}

.sidebar-footer {
  margin-top: auto;
  padding: 14px;
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  border-radius: 16px;
  background: rgba(255,255,255,.06);
}

.sidebar-footer .user-mini {
  width: 100%;
  text-align: center;
}

.sidebar-footer .user-mini strong,
.sidebar-footer .user-mini span {
  text-align: center;
}

.main-shell {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(236,244,255,.96);
  backdrop-filter: blur(16px);
}

.topbar h1 { margin: 0; font-size: 22px; line-height: 1.2; }
.topbar p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }

.topbar-actions,
.action-row,
.viewer-toolbar,
.reference-meta,
.invite-filter-row,
.invite-code-row,
.history-tools,
.history-actions,
.template-row,
.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-actions { flex-wrap: wrap; }
.content-shell { padding: 20px; }

.page-grid,
.generate-layout,
.two-column {
  display: grid;
  gap: 18px;
}

.generate-layout {
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.92fr);
  align-items: start;
}

.two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.panel {
  min-width: 0;
  padding: 24px 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(252,254,255,.98), rgba(242,248,255,.98));
  box-shadow: var(--shadow);
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.compact-head { margin-bottom: 12px; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; }
h2 { font-size: 20px; line-height: 1.25; }
.subtle, .hint { color: var(--muted); font-size: 13px; line-height: 1.65; }
.subtle { margin: 6px 0 0; }

.form-stack { display: grid; gap: 14px; }
.form-grid, .settings-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.full-span { grid-column: 1 / -1; }

label {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}

input, textarea, select {
  width: 100%;
  margin-top: 8px;
  padding: 12px 13px;
  border: 1px solid #d0d5dd;
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease, transform .14s ease;
}

textarea { min-height: 120px; resize: vertical; line-height: 1.65; }
input:focus, textarea:focus, select:focus {
  border-color: rgba(22, 93, 255, .72);
  box-shadow: 0 0 0 4px rgba(22, 93, 255, .12);
}
input:disabled {
  background: #f2f4f7;
  color: #98a2b3;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 11px 14px;
  font-weight: 800;
  transition: transform .14s ease, box-shadow .14s ease, background .14s ease, color .14s ease;
}
button:hover { transform: translateY(-1px); }
button:disabled { cursor: not-allowed; opacity: .55; transform: none; }

.primary-btn {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(22,93,255,.18);
}
.primary-btn:hover { background: var(--primary-dark); }

.ghost-btn, .ghost-link, .icon-btn, .copy-btn {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  text-decoration: none;
}
.ghost-link { display: inline-flex; align-items: center; min-height: 40px; padding: 10px 12px; }
.warning-btn {
  background: var(--warning);
  color: #fff;
}
.danger-btn {
  background: var(--danger);
  color: #fff;
}
.danger-ghost-btn { color: var(--danger); }
.large-btn { width: min(220px, 100%); }
.menu-btn { display: none; width: 42px; height: 42px; padding: 0; }

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(22,93,255,.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

.toggle-row { display: flex; align-items: center; gap: 10px; }
.toggle-row input[type="checkbox"] { width: 18px; height: 18px; margin: 0; padding: 0; accent-color: var(--primary); }
.toggle-row span { line-height: 1.5; }

.option-card,
.advanced-panel,
.preset-panel,
.asset-section,
.reference-panel,
.mask-editor-wrap,
.viewer-toolbar,
.dropzone {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, #edf5ff, #e4efff);
}

.advanced-panel summary span { margin-right: 8px; color: var(--primary); }

details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  color: var(--text);
  font-weight: 800;
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "展开";
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

details[open] summary::after {
  content: "收起";
}

.preset-panel .template-row {
  margin-top: 12px;
}

.field-title-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.char-count {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.template-row {
  flex-wrap: wrap;
}

.template-chip {
  width: auto;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}

.mode-chip {
  display: inline-flex;
  width: fit-content;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(22,93,255,.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

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

.reference-panel { display: grid; gap: 10px; }
.reference-preview {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
}
.reference-meta {
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

.mask-editor-wrap { display: grid; gap: 12px; }
.mask-editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
}
.mask-editor-toolbar label { flex: 1 1 180px; }
.mask-editor-toolbar input[type="range"] { padding: 0; border: 0; background: transparent; }

.mask-canvas-stage {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
}
.mask-base-image, .mask-canvas { display: block; width: 100%; height: auto; }
.mask-base-image { position: relative; z-index: 1; }
.mask-canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  cursor: crosshair;
  opacity: .65;
  touch-action: none;
}

.result-panel {
  position: sticky;
  top: 96px;
}
.viewer-toolbar { flex-wrap: wrap; margin-bottom: 14px; }
.viewer-message.success { color: var(--success); }
.viewer-message.error { color: var(--danger); }
.panorama-viewer {
  width: 100%;
  height: 420px;
  margin-bottom: 12px;
  overflow: hidden;
  border-radius: 16px;
  background: #111827;
}

.result-stage {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  min-height: 280px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, #eaf3ff, #dfeaff);
}
.result-stage.loading::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent);
  animation: shimmer 1.15s infinite;
}
.result-img { display: block; width: 100%; }
.empty-result, .empty-state {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 180px;
  color: var(--muted);
  text-align: center;
}
.spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid rgba(22,93,255,.18);
  border-top-color: var(--primary);
  animation: spin .9s linear infinite;
}

.prompt-output {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-soft);
}

.prompt-output pre {
  margin: 12px 0 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.65;
}

.history-tools {
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.history-tools input { flex: 1 1 260px; }
.history-tools select { width: 180px; }
.history-masonry {
  column-count: 2;
  column-gap: 14px;
}
.history-card {
  display: inline-block;
  width: 100%;
  margin: 0 0 14px;
  break-inside: avoid;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.history-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #eef2f7;
  cursor: pointer;
}
.history-card-body {
  display: grid;
  gap: 8px;
  padding: 14px;
}
.history-card-body strong {
  color: var(--text);
}
.history-card-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.history-meta-line { color: var(--muted); font-size: 12px; }
.history-actions { flex-wrap: wrap; }

.invite-filter-row { flex-wrap: wrap; margin-bottom: 12px; }
.invite-clear-btn { margin-left: auto; }
.invite-list { display: grid; gap: 10px; }
.invite-item {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
}
.invite-summary-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
}
.invite-summary-row::-webkit-details-marker { display: none; }
.invite-detail-panel {
  display: grid;
  gap: 4px;
  padding: 0 16px 16px;
}
.invite-code-row { flex-wrap: wrap; margin-bottom: 6px; }
.invite-code-row code {
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(22,93,255,.1);
  color: var(--primary);
}
.invite-state {
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}
.invite-state.active { background: rgba(22,163,74,.12); color: var(--success); }
.invite-state.used { background: rgba(107,114,128,.12); color: #6b7280; }
.invite-state.revoked { background: rgba(217,45,32,.12); color: var(--danger); }
.copy-btn {
  width: auto;
  margin: 0;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
}

.login-page {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  width: 100vw;
  min-height: 100vh;
  margin: 0 auto;
  padding: 32px;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(rgba(16,63,145,.18), rgba(15,47,111,.18)),
    url("/login-bg-poster.jpg") center / cover no-repeat,
    linear-gradient(135deg, #103f91 0%, #165dff 44%, #0f2f6f 100%);
}

.login-visual,
.login-visual::before,
.login-visual::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.login-visual {
  z-index: 0;
}

.login-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background:
    url("/login-bg-poster.jpg") center / cover no-repeat,
    linear-gradient(135deg, #103f91 0%, #165dff 44%, #0f2f6f 100%);
  filter: brightness(.8) contrast(1.08) saturate(1.45) hue-rotate(18deg);
  transform: scale(1.03);
}

.login-visual::before {
  content: "";
  background:
    linear-gradient(90deg, rgba(180,210,255,.05) 1px, transparent 1px),
    linear-gradient(rgba(180,210,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 82%);
  animation: gridDrift 24s linear infinite;
}

.login-visual::after {
  content: "";
  background:
    linear-gradient(180deg, rgba(22,93,255,.05), transparent 42%, transparent 64%, rgba(22,93,255,.06));
}

.login-grid,
.login-noise {
  position: absolute;
  inset: 0;
}

.login-grid {
  background:
    linear-gradient(135deg, rgba(22,93,255,.92), rgba(37,99,235,.52) 42%, rgba(255,255,255,0) 74%),
    linear-gradient(90deg, transparent 0 48%, rgba(22,93,255,.12) 48%, rgba(22,93,255,.12) 52%, transparent 52%),
    linear-gradient(180deg, transparent 0 46%, rgba(255,255,255,.035) 46%, rgba(255,255,255,.035) 54%, transparent 54%);
  background-size: 100% 100%, 100% 100%, 100% 100%;
  opacity: .8;
  mix-blend-mode: screen;
  animation: pulseGrid 7s ease-in-out infinite;
}

.login-noise {
  background-image:
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 3px 3px, 3px 3px;
  opacity: .25;
  mix-blend-mode: overlay;
}

.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  background: rgba(255,255,255,.22);
  border: 1px solid rgba(255,255,255,.24);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.22);
  backdrop-filter: blur(26px);
  -webkit-backdrop-filter: blur(26px);
}
.login-card-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.login-card-title h1 { margin: 0; font-size: 24px; }
.login-card-title .brand-mark {
  background: #fff;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.18);
}

.login-page .panel {
  background: rgba(255,255,255,.22);
  backdrop-filter: blur(26px);
  -webkit-backdrop-filter: blur(26px);
}
.auth-tabs {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 18px;
  padding: 4px;
  border-radius: 14px;
  background: var(--surface-soft);
}
.auth-tab { background: transparent; color: var(--muted); }
.auth-tab.active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 6px 18px rgba(16,24,40,.08);
}
.captcha-row {
  display: grid;
  grid-template-columns: minmax(0,1fr) 170px;
  gap: 12px;
  align-items: end;
}
.captcha-box { display: grid; gap: 8px; }
.captcha-img {
  width: 100%;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 18px 20px 26px;
  color: var(--muted);
  font-size: 12px;
}

@keyframes gridDrift {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(44px, 44px, 0); }
}

@keyframes pulseGrid {
  0%, 100% { opacity: .18; }
  50% { opacity: .34; }
}
.site-footer a { color: inherit; text-decoration: none; }
.beian-link-police { display: inline-flex; align-items: center; gap: 6px; }
.beian-link-police img { width: 16px; height: 16px; }

.sidebar-mask { display: none; }
.hidden { display: none !important; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }

@media (max-width: 1180px) {
  .generate-layout, .two-column { grid-template-columns: 1fr; }
  .result-panel { position: static; }
  .history-masonry { column-count: 1; }
}

@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    transform: translateX(-100%);
    transition: transform .18s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-mask {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(16,24,40,.44);
    z-index: 25;
  }
  .menu-btn { display: inline-grid; place-items: center; flex: 0 0 auto; }
  .topbar { align-items: flex-start; padding: 14px 16px; }
  .topbar-actions { display: none; }
  .content-shell { padding: 16px; }
  .login-page {
    padding: 16px;
  }
  .form-grid, .settings-form, .captcha-row { grid-template-columns: 1fr; }
  .section-head, .action-row, .reference-meta, .invite-summary-row, .toolbar-actions { flex-direction: column; align-items: stretch; }
  .large-btn, .primary-btn, .ghost-btn, .danger-btn, .warning-btn, .ghost-link { width: 100%; justify-content: center; }
  .status-text { text-align: left; }
  .invite-clear-btn { margin-left: 0; }
}

@media (max-width: 560px) {
  .panel { padding: 16px; border-radius: 16px; }
  .topbar h1 { font-size: 19px; }
  .login-page { padding: 10px; align-items: center; }
  .login-card {
    width: min(92vw, 330px);
    max-width: 330px;
    padding: 14px;
    border-radius: 16px;
  }
  .login-card-title {
    gap: 8px;
    margin-bottom: 10px;
    padding-bottom: 10px;
  }
  .login-card-title h1 { font-size: 18px; }
  .login-card-title p { display: none; }
  .login-card-title .brand-mark {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
  }
  .auth-tabs {
    width: 100%;
    margin-bottom: 10px;
    padding: 3px;
    border-radius: 12px;
  }
  .auth-tab {
    flex: 1;
    padding: 7px 8px;
    border-radius: 10px;
    font-size: 13px;
  }
  .login-page .form-stack { gap: 8px; }
  .login-page label { font-size: 12px; }
  .login-page input {
    min-height: 36px;
    margin-top: 5px;
    padding: 7px 10px;
    border-radius: 10px;
    font-size: 13px;
  }
  .login-page button {
    min-height: 36px;
    padding: 8px 10px;
    border-radius: 10px;
    font-size: 13px;
  }
  .login-page .captcha-row {
    grid-template-columns: minmax(0, 1fr) 112px;
    gap: 8px;
  }
  .login-page .captcha-box { gap: 6px; }
  .captcha-img {
    height: 36px;
    border-radius: 10px;
  }
  .history-card img { aspect-ratio: 1 / 1; }
  .panorama-viewer { height: 300px; }
  .site-footer span { display: none; }
}

@media (max-width: 380px) {
  .login-card {
    width: min(94vw, 304px);
    max-width: 304px;
    padding: 12px;
  }
  .login-card-title h1 { font-size: 17px; }
  .login-card-title .brand-mark {
    width: 32px;
    height: 32px;
    flex-basis: 32px;
  }
  .login-page .captcha-row {
    grid-template-columns: minmax(0, 1fr) 104px;
  }
}