:root {
  --canvas: #f4f7fb;
  --paper: #ffffff;
  --ink: #1d2c41;
  --muted: #657388;
  --line: #dfe5ee;
  --accent: #087f82;
  --warning: #8b5c16;
  --danger: #b43b46;
  --display: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  --body: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --utility: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: var(--body); font-size: 14px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea, summary { -webkit-tap-highlight-color: transparent; }
button, a, input, select, textarea, summary { outline-offset: 4px; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 55%, white); }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }
a { color: var(--accent); text-underline-offset: 3px; }
.skip-link { position: absolute; top: -60px; left: 20px; z-index: 10; background: var(--paper); padding: 10px 16px; }
.skip-link:focus { top: 10px; }
.site-header { max-width: 1440px; padding: 27px 48px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-size: 16px; font-weight: 700; line-height: 1.3; text-decoration: none; }
.brand-mark { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 12px; background: var(--ink); color: var(--paper); font-size: 26px; font-weight: 400; }
.brand-caption { display: block; margin-top: 5px; color: var(--muted); font: 9px/1.2 var(--utility); letter-spacing: .13em; font-weight: 400; }
.header-status { display: flex; align-items: center; gap: 19px; font-size: 12px; }
.mode-badge { padding: 4px 10px; color: var(--warning); background: color-mix(in srgb, var(--warning) 8%, white); border: 1px solid color-mix(in srgb, var(--warning) 18%, white); border-radius: 6px; white-space: nowrap; }
.health-indicator { border: 0; padding: 6px 0; color: var(--muted); background: transparent; display: flex; align-items: center; gap: 7px; font-size: 12px; }
.status-dot { width: 6px; height: 6px; background: var(--muted); border-radius: 50%; }
.health-indicator[data-state="ok"] { color: var(--accent); }
.health-indicator[data-state="ok"] .status-dot { background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 8%, transparent); }
.health-indicator[data-state="error"] { color: var(--danger); }
.health-indicator[data-state="error"] .status-dot { background: var(--danger); }
.workspace { max-width: 1344px; margin: 0 auto; padding: 22px 48px 24px; }
.intro { display: flex; align-items: center; justify-content: space-between; gap: 36px; margin-bottom: 32px; }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 10px; letter-spacing: .13em; font-weight: 600; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 10px; font: 700 clamp(30px, 3vw, 40px)/1.3 var(--display); letter-spacing: -.04em; }
.intro-copy { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.environment-note { max-width: 365px; margin: 0; display: flex; align-items: flex-start; gap: 12px; color: var(--muted); font-size: 12px; line-height: 1.8; }
.environment-note > span:first-child { color: var(--accent); font-size: 29px; line-height: 1.4; }
.environment-note strong { display: block; margin-bottom: 2px; color: var(--ink); font-size: 13px; font-weight: 600; }
.workbench-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.15fr); gap: 24px; align-items: start; }
.compose-column { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.card { border: 1px solid var(--line); border-radius: 16px; background: var(--paper); box-shadow: 0 4px 20px color-mix(in srgb, var(--ink) 2%, transparent); }
.connection-card, .composer-card { padding: 24px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 19px; }
h2 { margin: 0; font: 600 16px/1.4 var(--display); letter-spacing: -.02em; }
.small-status, .section-meta { font-size: 11px; color: var(--muted); }
.small-status.connected { color: var(--accent); }
label { display: block; margin-bottom: 8px; color: var(--ink); font-size: 12px; font-weight: 600; }
input, select, textarea { width: 100%; min-width: 0; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--paper); transition: border-color .15s, box-shadow .15s; }
input, select { min-height: 42px; padding: 9px 12px; }
input::placeholder, textarea::placeholder { color: color-mix(in srgb, var(--muted) 80%, white); }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 7%, transparent); outline: none; }
input:disabled, select:disabled, textarea:disabled { color: var(--muted); background: color-mix(in srgb, var(--canvas) 85%, white); cursor: not-allowed; opacity: 1; }
select { padding-right: 30px; }
textarea { display: block; min-height: 210px; padding: 14px; resize: vertical; line-height: 1.8; font-size: 13px; }
.connection-controls { display: flex; gap: 8px; }
.connection-controls input { flex: 1; font-size: 12px; }
.button { min-height: 42px; padding: 9px 16px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; border-radius: 8px; font-size: 12px; font-weight: 600; white-space: nowrap; transition: background .15s, transform .15s, border-color .15s; }
.button:not(:disabled):active { transform: translateY(1px); }
.button-primary { color: white; background: var(--accent); }
.button-primary:not(:disabled):hover { background: color-mix(in srgb, var(--accent) 85%, var(--ink)); }
.button-primary:disabled { color: color-mix(in srgb, var(--muted) 65%, white); background: var(--line); }
.button-secondary { background: var(--paper); border-color: var(--line); color: var(--ink); }
.button-secondary:not(:disabled):hover { background: var(--canvas); border-color: color-mix(in srgb, var(--muted) 50%, var(--line)); }
.button-secondary:disabled { color: var(--muted); opacity: .55; }
.button-warning { color: var(--warning); background: color-mix(in srgb, var(--warning) 7%, white); border-color: color-mix(in srgb, var(--warning) 24%, white); }
.button-warning:disabled { opacity: .5; }
.field-note { margin: 8px 0 0; font-size: 11px; line-height: 1.65; color: var(--muted); }
.connection-note { margin: 15px 0 0; padding-top: 13px; border-top: 1px solid color-mix(in srgb, var(--line) 70%, white); color: var(--muted); font-size: 11px; }
.setting-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 12px; margin-bottom: 22px; }
.prompt-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; }
.character-count { color: var(--muted); font: 10px/1.6 var(--utility); }
.character-count.at-limit { color: var(--warning); }
.submit-row { margin-top: 21px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.submit-help { margin: 0; max-width: 220px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.button-submit { min-width: 120px; }
.button-submit > span:last-child { font-size: 18px; font-weight: 400; line-height: 1; }
.lookup-section { padding: 3px 4px; }
.lookup-section .section-heading { margin-bottom: 12px; }
.lookup-section h2 { font-size: 13px; }
.lookup-controls { display: flex; gap: 8px; }
.lookup-controls input { background: color-mix(in srgb, var(--paper) 70%, transparent); font-size: 11px; }
.monospace { font-family: var(--utility); }
.receipt-card { min-height: 725px; display: flex; flex-direction: column; padding: 28px; overflow: hidden; }
.receipt-heading { margin-bottom: 27px; }
.receipt-heading .eyebrow { margin-bottom: 5px; font-size: 9px; }
.receipt-heading h2 { font-size: 21px; font-weight: 600; }
.task-badge { display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: var(--canvas); font-size: 11px; white-space: nowrap; }
.task-badge[data-state="completed"] { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 20%, white); background: color-mix(in srgb, var(--accent) 6%, white); }
.task-badge[data-state="queued"], .task-badge[data-state="running"], .task-badge[data-state="submitting"], .task-badge[data-state="submitted"], .task-badge[data-state="sending"] { color: var(--accent); background: color-mix(in srgb, var(--accent) 5%, white); border-color: color-mix(in srgb, var(--accent) 18%, white); }
.task-badge[data-state="unknown"], .task-badge[data-state="uncertain"] { color: var(--warning); background: color-mix(in srgb, var(--warning) 5%, white); border-color: color-mix(in srgb, var(--warning) 20%, white); }
.task-badge[data-state="failed"] { color: var(--danger); background: color-mix(in srgb, var(--danger) 5%, white); border-color: color-mix(in srgb, var(--danger) 20%, white); }
.execution-track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); list-style: none; margin: 0; padding: 0; gap: 5px; }
.execution-track li { display: flex; flex-direction: column; gap: 9px; color: var(--muted); font-size: 10px; }
.track-mark { display: block; height: 4px; width: 100%; border-radius: 2px; background: var(--line); transition: background .25s; }
.execution-track li.done .track-mark { background: color-mix(in srgb, var(--accent) 35%, white); }
.execution-track li.active, .execution-track li.done { color: var(--accent); }
.execution-track li.active .track-mark { background: var(--accent); }
.execution-track li.attention { color: var(--warning); }
.execution-track li.attention .track-mark { background: var(--warning); }
.task-metadata { margin: 25px 0 0; padding: 18px 0; border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
.task-id-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.meta-label { color: var(--muted); font-size: 10px; }
.task-id-row code { color: var(--ink); font: 10px/1.6 var(--utility); overflow-wrap: anywhere; }
.task-id-row .text-button { margin-left: auto; }
.task-facts { display: flex; flex-wrap: wrap; gap: 5px 15px; margin-top: 9px; color: var(--muted); font-size: 10px; }
.result-empty { flex: 1; min-height: 350px; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 45px 20px; text-align: center; }
.empty-symbol { width: 60px; height: 63px; padding: 18px 13px; margin-bottom: 24px; display: flex; flex-direction: column; gap: 7px; border: 1px solid var(--line); background: var(--canvas); border-radius: 10px 10px 18px 10px; transform: rotate(-6deg); }
.empty-symbol span { height: 2px; background: color-mix(in srgb, var(--muted) 25%, white); border-radius: 1px; }
.empty-symbol span:nth-child(2) { width: 70%; }
.empty-symbol span:nth-child(3) { width: 85%; }
.result-empty h3 { margin: 0 0 8px; color: var(--ink); font-size: 17px; font-weight: 500; }
.result-empty p { max-width: 250px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.9; }
.result-content { flex: 1; padding-top: 20px; }
.source-banner { margin-bottom: 16px; padding: 9px 11px; border-radius: 6px; color: var(--warning); background: color-mix(in srgb, var(--warning) 6%, white); font-size: 11px; line-height: 1.75; }
.source-banner.source-live { color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, white); }
.task-message { margin-bottom: 16px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.result-toolbar { display: flex; align-items: center; justify-content: space-between; margin: 21px 0 12px; color: var(--muted); font-size: 10px; }
.result-text { margin: 0; padding: 0 0 20px; white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-word; font: 13px/1.95 var(--body); max-height: 680px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.receipt-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 25px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.text-button { border: 0; padding: 2px 0; background: transparent; color: var(--accent); font-size: 10px; white-space: nowrap; }
.text-button:hover { text-decoration: underline; text-underline-offset: 3px; }
.text-button:disabled { color: var(--muted); opacity: .5; text-decoration: none; }
.notice { margin: 0 0 22px; padding: 13px 16px; border: 1px solid color-mix(in srgb, var(--accent) 20%, white); border-radius: 10px; background: color-mix(in srgb, var(--accent) 5%, white); color: var(--accent); font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.notice-error { color: var(--danger); background: color-mix(in srgb, var(--danger) 5%, white); border-color: color-mix(in srgb, var(--danger) 20%, white); }
.notice-warning { color: var(--warning); background: color-mix(in srgb, var(--warning) 5%, white); border-color: color-mix(in srgb, var(--warning) 20%, white); }
.uncertain-panel { margin-top: 24px; padding: 17px; border: 1px solid color-mix(in srgb, var(--warning) 22%, white); border-radius: 9px; background: color-mix(in srgb, var(--warning) 3%, white); }
.uncertain-panel h3 { margin-bottom: 8px; color: var(--warning); font-size: 13px; }
.uncertain-panel > p { margin-bottom: 12px; color: var(--muted); font-size: 11px; line-height: 1.8; }
.request-reference { margin: 14px 0; }
.request-reference dt { color: var(--muted); font-size: 10px; }
.request-reference dd { margin: 4px 0 0; font: 10px/1.7 var(--utility); overflow-wrap: anywhere; }
.request-details { margin-top: 14px; color: var(--muted); font-size: 11px; }
.request-details summary { cursor: pointer; }
.request-details pre { max-height: 180px; overflow: auto; margin: 10px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 10px/1.7 var(--utility); }
.task-error { margin-bottom: 18px; border-left: 3px solid var(--warning); padding: 2px 0 2px 13px; }
.task-error strong { color: var(--warning); font-size: 13px; font-weight: 600; }
.task-error p { margin: 6px 0 8px; color: var(--muted); font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.task-error code { color: var(--muted); font: 10px/1.6 var(--utility); overflow-wrap: anywhere; }
.attachments { margin: 20px 0; padding-top: 15px; border-top: 1px solid var(--line); }
.attachments h3 { font-size: 12px; margin-bottom: 10px; }
.attachments ul { margin: 0; padding-left: 18px; }
.attachments li { margin-bottom: 8px; font-size: 12px; overflow-wrap: anywhere; }
.attachment-note { display: block; color: var(--muted); font-size: 10px; }
.page-footer { display: flex; justify-content: space-between; gap: 20px; padding: 31px 1px 0; color: var(--muted); font-size: 10px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; white-space: nowrap; }
@media (min-width: 1440px) { .workspace { padding-top: 32px; } .intro { margin-bottom: 40px; } .receipt-card { min-height: 744px; } }
@media (max-width: 1000px) {
  .site-header { padding: 24px 28px; }
  .workspace { padding: 20px 28px; }
  .intro { gap: 25px; }
  .environment-note { max-width: 280px; }
  .workbench-grid { gap: 18px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); }
  .connection-card, .composer-card { padding: 20px; }
  .receipt-card { padding: 23px; min-height: 730px; }
  .section-meta { display: none; }
  .setting-grid { grid-template-columns: 1fr; gap: 14px; }
  .submit-help { max-width: 130px; }
}
@media (max-width: 760px) {
  .site-header { padding: 21px 22px; }
  .header-status { gap: 12px; }
  .health-indicator { font-size: 10px; }
  .mode-badge { font-size: 10px; }
  .brand { font-size: 14px; gap: 9px; }
  .brand-mark { width: 34px; height: 34px; font-size: 24px; border-radius: 10px; }
  .brand-caption { font-size: 8px; letter-spacing: .08em; }
  .workspace { padding: 19px 22px 24px; }
  .intro { align-items: flex-start; flex-direction: column; gap: 22px; margin-bottom: 26px; }
  .intro-copy { font-size: 12px; }
  .environment-note { max-width: none; font-size: 11px; }
  .environment-note > span:first-child { font-size: 25px; }
  .environment-note strong { display: inline; margin-right: 8px; font-size: 11px; }
  .workbench-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .compose-column { gap: 16px; }
  .setting-grid { grid-template-columns: 1.2fr 1fr; gap: 12px; }
  .receipt-card { min-height: 550px; padding: 24px; }
  .result-empty { min-height: 290px; }
  .submit-help { max-width: 215px; }
  .page-footer { flex-direction: column; gap: 4px; padding-top: 26px; }
}
@media (max-width: 420px) {
  .site-header { padding: 19px 17px; align-items: flex-start; }
  .header-status { align-items: flex-end; flex-direction: column; gap: 5px; }
  .workspace { padding: 16px 17px 24px; }
  .intro h1 { font-size: 30px; }
  .card { border-radius: 13px; }
  .connection-card, .composer-card, .receipt-card { padding: 20px; }
  .setting-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .button { padding: 9px 13px; }
  .submit-help { max-width: 155px; }
  .task-id-row code { font-size: 9px; }
  .task-id-row .meta-label { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }