/* 文舒 — shared app components */

/* iPhone frame (390 × 844 — iPhone 15 Pro logical size) */
.device {
  width: 390px;
  height: 844px;
  background: var(--paper);
  position: relative;
  overflow: hidden;
  border-radius: 54px;
  box-shadow:
    inset 0 0 0 2px oklch(20% 0.01 80),
    inset 0 0 0 12px oklch(8% 0.005 80),
    0 30px 60px -20px oklch(20% 0.02 80 / 0.35),
    0 8px 24px -10px oklch(20% 0.02 80 / 0.2);
}
.device-screen {
  position: absolute;
  inset: 12px;
  border-radius: 42px;
  overflow: hidden;
  background: var(--paper);
}
.device-screen-inner {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Status bar (iOS) */
.statusbar {
  position: relative;
  z-index: 5;
  height: 54px;
  padding: 18px 30px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.statusbar .time { font-variant-numeric: tabular-nums; }
.statusbar .icons { display: flex; gap: 6px; align-items: center; }
.statusbar svg { display: block; }

/* Dynamic Island */
.island {
  position: absolute;
  top: 11px;
  left: 50%;
  transform: translateX(-50%);
  width: 124px;
  height: 36px;
  background: oklch(8% 0.005 80);
  border-radius: 24px;
  z-index: 4;
}

/* Home indicator */
.home-indicator {
  position: absolute;
  left: 50%; bottom: 8px;
  transform: translateX(-50%);
  width: 134px; height: 5px;
  background: var(--ink);
  border-radius: 3px;
  opacity: 0.85;
  z-index: 5;
}

/* Scrollable area inside device */
.screen-body {
  position: absolute;
  top: 54px;
  bottom: 0;
  left: 0; right: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.screen-body::-webkit-scrollbar { display: none; }

/* Screen label (shown on launcher / overview only) */
.screen-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

/* Library: masonry */
.masonry {
  column-width: 280px;
  column-gap: var(--s-7);
  padding: var(--s-7);
}
.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--s-7);
  display: block;
}
.masonry-item h2 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.3;
  margin: 0 0 var(--s-3);
  color: var(--ink);
  letter-spacing: 0.02em;
}
.masonry-item .excerpt {
  font-family: var(--font-mincho);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-faint);
  margin: 0 0 var(--s-4);
}
.masonry-item .stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-ghost);
  display: flex; align-items: center; gap: 8px;
}
.masonry-item .stamp::before {
  content: "";
  width: 12px; height: 1px;
  background: var(--paper-edge);
}

/* Mobile-tighter masonry */
.masonry.mobile {
  column-width: auto;
  column-count: 1;
  column-gap: 0;
  padding: var(--s-6) var(--s-5) var(--s-7);
}
.masonry.mobile .masonry-item {
  margin-bottom: var(--s-7);
}
.masonry.mobile .masonry-item h2 { font-size: 22px; }
.masonry.mobile .masonry-item .excerpt { font-size: 14.5px; line-height: 1.9; }

/* Library header */
.library-head {
  padding: var(--s-7) var(--s-7) var(--s-3);
  display: flex; justify-content: space-between; align-items: baseline;
}
.library-head .greet {
  font-family: var(--font-mincho);
  font-size: 17px;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.library-head .count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-ghost);
}
.library-head.mobile {
  padding: 8px var(--s-5) 0;
}

/* Editor */
.editor-canvas {
  padding: var(--s-8) var(--s-7) var(--s-9);
  max-width: 760px;
  margin: 0 auto;
}
.editor-canvas .title-input {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(28px, 4.4vw, 40px);
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-align: center;
  display: block;
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  margin: 0 0 var(--s-7);
}
.editor-canvas .title-input:empty::before,
.editor-canvas .title-input[data-placeholder]:empty::before {
  content: attr(data-placeholder);
  color: var(--ink-ghost);
  font-weight: 400;
}
.editor-canvas .meta-row {
  text-align: center;
  margin: -16px 0 var(--s-8);
}
.editor-canvas .body-input {
  font-family: var(--font-mincho);
  font-size: 17px;
  line-height: 2.05;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: 0;
  outline: none;
  background: transparent;
  display: block;
  max-width: var(--measure-zh);
  margin: 0 auto;
}
.editor-canvas .body-input p { margin: 0 0 1.6em; }
.editor-canvas .body-input h2 {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.4;
  margin: 2.2em 0 1.2em;
  text-align: center;
}
.editor-canvas .body-input blockquote {
  margin: 1.8em 0;
  padding: 0;
  border: 0;
  color: var(--ink-faint);
  font-style: normal;
  position: relative;
}
.editor-canvas .body-input blockquote::before {
  content: "「";
  position: absolute;
  left: -1em; top: -0.2em;
  font-family: var(--font-mincho);
  color: var(--ink-ghost);
  font-size: 1.3em;
}
.editor-canvas .body-input blockquote::after {
  content: "」";
  font-family: var(--font-mincho);
  color: var(--ink-ghost);
  font-size: 1.3em;
}

/* Tategaki (vertical writing) variant */
.editor-canvas.tategaki-mode {
  writing-mode: vertical-rl;
  height: 100%;
  padding: var(--s-7) var(--s-7);
  max-width: none;
  display: block;
  overflow-x: auto;
  overflow-y: hidden;
}
.editor-canvas.tategaki-mode .title-input {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  margin: 0 0 0 var(--s-7);
  text-align: start;
  height: 8em;
}
.editor-canvas.tategaki-mode .body-input {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  max-width: none;
  max-height: 24em;
  margin: 0;
}
.editor-canvas.tategaki-mode .meta-row { display: none; }

/* Caret breathing animation */
@keyframes breathe {
  0%, 100% { opacity: 0.85; }
  50%      { opacity: 0.25; }
}
.cursor-breath {
  display: inline-block;
  width: 2px; height: 1.1em;
  background: var(--ink);
  margin-left: 2px;
  vertical-align: -0.15em;
  animation: breathe 2s ease-in-out infinite;
}

/* Capture (drop-down paper) */
.capture-paper {
  position: absolute;
  inset: 0;
  background: var(--paper);
  padding: var(--s-7) var(--s-5);
  display: flex;
  flex-direction: column;
  animation: slideDown 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}
@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.capture-paper .prompt {
  font-family: var(--font-mincho);
  font-size: 15px;
  color: var(--ink-ghost);
  margin-bottom: var(--s-6);
  letter-spacing: 0.04em;
}
.capture-paper .capture-input {
  font-family: var(--font-mincho);
  font-size: 19px;
  line-height: 2.0;
  color: var(--ink);
  border: 0; outline: 0;
  background: transparent;
  resize: none;
  width: 100%;
  flex: 1;
  letter-spacing: 0.02em;
}
.capture-paper .capture-foot {
  padding-top: var(--s-5);
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-ghost);
}

/* Reader detail */
.reader {
  padding: var(--s-7) var(--s-5) var(--s-8);
  max-width: var(--measure-zh);
  margin: 0 auto;
  font-family: var(--font-mincho);
}
.reader .kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-align: center;
  margin-bottom: var(--s-5);
}
.reader h1 {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.3;
  text-align: center;
  margin: 0 0 var(--s-3);
  letter-spacing: 0.04em;
}
.reader .byline {
  text-align: center;
  font-family: var(--font-mincho);
  font-size: 14px;
  color: var(--ink-faint);
  margin-bottom: var(--s-8);
  letter-spacing: 0.06em;
}
.reader .byline::before, .reader .byline::after {
  content: "—";
  margin: 0 0.6em;
  color: var(--ink-ghost);
}
.reader p {
  font-family: var(--font-mincho);
  font-size: 17px;
  line-height: 2.05;
  color: var(--ink);
  margin: 0 0 1.8em;
  letter-spacing: 0.025em;
}
.reader .signature {
  text-align: right;
  margin-top: var(--s-7);
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--s-4);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-ghost);
  letter-spacing: 0.08em;
}

/* Export preview */
.export-card {
  background: var(--paper);
  padding: 48px 36px 32px;
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  /* paper feel */
  border: 1px solid var(--paper-edge);
}
.export-card .watermark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mincho);
  font-size: 200px;
  color: oklch(22% 0.008 75 / 0.035);
  letter-spacing: -0.1em;
  font-weight: 600;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.export-card > * { position: relative; z-index: 1; }
.export-card .ec-title {
  font-family: var(--font-mincho);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-align: center;
  margin: 0 0 var(--s-5);
}
.export-card .ec-body {
  font-family: var(--font-mincho);
  font-size: 14px;
  line-height: 2;
  letter-spacing: 0.03em;
  color: var(--ink);
}
.export-card .ec-body p { margin: 0 0 1.5em; }
.export-card .ec-foot {
  margin-top: var(--s-6);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-ghost);
}

/* Settings rows */
.settings-group {
  padding: 0 var(--s-5);
}
.settings-group + .settings-group { margin-top: var(--s-6); }
.settings-group .group-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  padding: 0 0 var(--s-3);
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--paper-edge);
}
.settings-row:last-child { border-bottom: 0; }
.settings-row .label {
  font-family: var(--font-mincho);
  font-size: 16px;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.settings-row .label .sub {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--ink-ghost);
  margin-top: 2px;
  letter-spacing: 0;
}
.settings-row .value {
  font-family: var(--font-mincho);
  font-size: 15px;
  color: var(--ink-faint);
}

/* Segmented (font picker) */
.seg {
  display: inline-flex;
  border: 1px solid var(--paper-edge);
}
.seg button {
  font-family: var(--font-mincho);
  font-size: 13px;
  padding: 6px 12px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.seg button[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* Toggle switch (minimal) */
.toggle {
  width: 44px; height: 24px;
  background: var(--paper-edge);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background .2s;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: var(--paper);
  border-radius: 50%;
  box-shadow: 0 1px 2px oklch(20% 0.01 80 / 0.2);
  transition: transform .2s;
}
.toggle[aria-checked="true"] {
  background: var(--ink);
}
.toggle[aria-checked="true"]::after {
  transform: translateX(20px);
}

/* Bottom drift action (replaces FAB) */
.drift-action {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 6;
  display: flex; flex-direction: column; align-items: center;
  gap: 6px;
  color: var(--ink-ghost);
}
.drift-action .glyph {
  font-family: var(--font-mincho);
  font-size: 22px;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--paper-edge);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
}
.drift-action .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--ink-ghost);
}

/* Used on responsive index.html — section helpers */
.web-shell { max-width: 1280px; margin: 0 auto; padding: var(--s-8) var(--s-6); }
.web-title {
  font-family: var(--font-mincho);
  font-size: clamp(48px, 10vw, 96px);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: 0.06em;
  margin: 0 0 var(--s-4);
}
.web-sub {
  font-family: var(--font-mincho);
  font-size: clamp(18px, 2vw, 22px);
  color: var(--ink-faint);
  margin: 0 0 var(--s-8);
  max-width: 36em;
  line-height: 1.75;
}

/* Phone showcase grid */
.showcase {
  display: grid;
  gap: var(--s-8);
  grid-template-columns: repeat(auto-fit, minmax(390px, 1fr));
  padding: var(--s-7) var(--s-6);
  justify-items: center;
}
.showcase .phone-wrap {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--s-4);
}
.showcase .phone-caption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-align: center;
}
.showcase .phone-caption strong {
  display: block;
  font-family: var(--font-mincho);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
  text-transform: none;
  margin-bottom: 4px;
}

/* === Novel-writing additions ============================================ */

/* Status pill (章节状态) */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  padding: 3px 0;
}
.chip::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--ink-ghost);
}
.chip.pending::before { background: var(--paper-edge); }
.chip.writing::before { background: var(--ink); animation: breathe 2s ease-in-out infinite; }
.chip.done::before    { background: var(--ink); }
.chip.sealed::before  { background: var(--vermilion); }

/* Library — novel-project card (replaces essay card) */
.project-card {
  display: block;
  break-inside: avoid;
  margin-bottom: var(--s-7);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--paper-edge);
}
.project-card:last-child { border-bottom: 0; }
.project-card .pc-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: var(--s-3);
  display: flex; align-items: center; gap: 8px;
}
.project-card .pc-kicker .sep { color: var(--paper-edge); }
.project-card h2 {
  font-family: var(--font-mincho);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.3;
  margin: 0 0 var(--s-3);
  color: var(--ink);
}
.project-card .pc-logline {
  font-family: var(--font-mincho);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ink-faint);
  margin: 0 0 var(--s-4);
  letter-spacing: 0.02em;
}
.project-card .pc-progress {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  color: var(--ink-ghost);
}
.project-card .pc-progress .bar {
  flex: 1; height: 1px; background: var(--paper-edge); position: relative;
}
.project-card .pc-progress .bar::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: var(--p, 0%); background: var(--ink);
}

/* Library tabs / filter */
.lib-tabs {
  display: flex; gap: var(--s-5);
  padding: var(--s-3) var(--s-5) var(--s-4);
  border-bottom: 1px solid var(--paper-edge);
  font-family: var(--font-mincho);
  font-size: 14px;
  letter-spacing: 0.08em;
}
.lib-tabs button {
  padding: 4px 0;
  color: var(--ink-ghost);
  border-bottom: 1px solid transparent;
}
.lib-tabs button[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* Plan (立项 + 谋篇) shared layout */
.plan {
  padding: var(--s-7) var(--s-5) var(--s-9);
  display: flex; flex-direction: column; gap: var(--s-7);
}
.plan .stepper {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}
.plan .stepper .dot { width: 6px; height: 6px; background: var(--paper-edge); }
.plan .stepper .dot.on  { background: var(--ink); }
.plan .stepper .dot.now { background: var(--vermilion); }
.plan .stepper .line { flex: 1; height: 1px; background: var(--paper-edge); }
.plan h1 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.3;
  letter-spacing: 0.06em;
  margin: 0;
  color: var(--ink);
}
.plan .lede {
  font-family: var(--font-mincho);
  font-size: 15px;
  color: var(--ink-faint);
  line-height: 2;
  margin: 0;
  letter-spacing: 0.02em;
  max-width: 30ch;
}

/* Question block (Q&A 卡片) */
.qblock {
  display: flex; flex-direction: column; gap: var(--s-4);
}
.qblock .q-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--ink-ghost);
}
.qblock .q-prompt {
  font-family: var(--font-mincho);
  font-size: 18px;
  line-height: 1.55;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 0;
}
.qblock .q-options { display: flex; flex-direction: column; gap: 1px; background: var(--paper-edge); border-top: 1px solid var(--paper-edge); border-bottom: 1px solid var(--paper-edge); }
.qblock .q-options button {
  background: var(--paper);
  padding: var(--s-4) 0;
  text-align: left;
  font-family: var(--font-mincho);
  font-size: 15.5px;
  letter-spacing: 0.03em;
  color: var(--ink);
  display: flex; justify-content: space-between; align-items: center;
  line-height: 1.5;
}
.qblock .q-options button .star {
  color: var(--vermilion);
  margin-right: 8px;
  font-size: 12px;
}
.qblock .q-options button[aria-selected="true"] { color: var(--ink); }
.qblock .q-options button[aria-selected="true"] .check {
  font-family: var(--font-mincho);
  color: var(--vermilion);
}
.qblock .q-options button .key {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.18em; color: var(--ink-ghost);
}

/* Outline list */
.outline {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--paper-edge);
}
.outline-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--paper-edge);
  align-items: baseline;
}
.outline-row .ch {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-ghost);
}
.outline-row .ti {
  font-family: var(--font-mincho);
  font-size: 16px;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.outline-row .ti .ev {
  display: block;
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-faint);
  margin-top: 4px;
  line-height: 1.7;
}
.outline-row .wc {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-ghost);
  text-align: right;
  white-space: nowrap;
}

/* Character card */
.char-card {
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--paper-edge);
}
.char-card .name {
  font-family: var(--font-mincho);
  font-size: 18px;
  color: var(--ink);
  letter-spacing: 0.08em;
  margin: 0 0 var(--s-2);
  display: flex; align-items: baseline; gap: 10px;
}
.char-card .name .role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}
.char-card dl {
  margin: 0;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 4px var(--s-4);
  font-family: var(--font-mincho);
  font-size: 13.5px;
  line-height: 1.9;
}
.char-card dt { color: var(--ink-ghost); letter-spacing: 0.06em; }
.char-card dd { margin: 0; color: var(--ink); letter-spacing: 0.02em; }

/* Editor — chapter-aware additions */
.editor-rail {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: calc(env(safe-area-inset-top, 0px) + 14px) var(--s-5) 14px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.20em;
  color: var(--ink-ghost);
  text-transform: uppercase;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-edge);
  z-index: 30;
}
.editor-rail .left, .editor-rail .right { display: flex; gap: 14px; align-items: center; }
.editor-rail .left .novel {
  font-family: var(--font-mincho);
  text-transform: none;
  letter-spacing: 0.06em;
  font-size: 12px;
  color: var(--ink-faint);
}
.editor-rail .wc {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.editor-rail .wc.over { color: var(--vermilion); }

/* Editor body adjusted for rail */
.editor-canvas.with-rail { padding-top: var(--s-7); }

/* Hook field (悬念钩子) below body */
.hook-field {
  max-width: var(--measure-zh);
  margin: var(--s-8) auto 0;
  padding-top: var(--s-5);
  border-top: 1px dashed var(--paper-edge);
}
.hook-field .label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: var(--s-3);
}
.hook-field .input {
  font-family: var(--font-mincho);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
  display: block;
}
.hook-field .input[contenteditable]:empty::before {
  content: attr(data-placeholder);
  color: var(--ink-ghost);
}

/* Outline drawer (in editor — peek slide-in) */
.outline-peek {
  position: fixed;
  top: 0; bottom: 0; right: 0;
  width: min(320px, 86vw);
  background: var(--paper-deep);
  border-left: 1px solid var(--paper-edge);
  padding: calc(env(safe-area-inset-top, 0px) + 64px) var(--s-5) var(--s-7);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
  z-index: 20;
  box-shadow: -10px 0 40px -22px rgba(28,26,22,0.25);
}
.outline-peek.open { transform: translateX(0); }
.outline-peek .peek-close {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 14px);
  right: 14px;
  width: 32px; height: 32px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink-faint);
  border-radius: 50%;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0;
}
.outline-peek-mask {
  position: fixed; inset: 0;
  background: rgba(28, 26, 22, 0.22);
  z-index: 19;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.outline-peek-mask.open { opacity: 1; pointer-events: auto; }
.outline-peek h3 {
  font-family: var(--font-mincho);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin: 0 0 var(--s-4);
  font-weight: 500;
}
.outline-peek .pk-row {
  display: grid; grid-template-columns: 36px 1fr;
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--paper-edge);
  font-family: var(--font-mincho);
  font-size: 13.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}
.outline-peek .pk-row .n { font-family: var(--font-mono); font-size: 10px; color: var(--ink-ghost); letter-spacing: 0.18em; }
.outline-peek .pk-row.current { color: var(--vermilion); }
.outline-peek .pk-row.current .n { color: var(--vermilion); }

/* Reader chapter-nav */
.ch-nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--paper-edge);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-ghost);
}
.ch-nav .now {
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 0.06em;
  text-transform: none;
}

/* Export — chapter context */
.export-card .ec-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-align: center;
  margin-bottom: var(--s-4);
}
.export-card .ec-seal {
  position: absolute;
  right: 22px;
  bottom: 50px;
  width: 32px; height: 32px;
  background: var(--vermilion);
  color: var(--paper);
  display: grid; place-items: center;
  font-family: var(--font-mincho);
  font-size: 11px;
  letter-spacing: -0.04em;
  line-height: 1;
  z-index: 2;
}

/* Capture — context strip */
.capture-paper .ctx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: var(--s-4);
  display: flex; gap: 10px; align-items: center;
}
.capture-paper .ctx .sep { color: var(--paper-edge); }
.capture-paper .chip-bag {
  display: flex; flex-wrap: wrap; gap: 6px 12px;
  padding-top: var(--s-4);
  margin-top: auto;
}
.capture-paper .chip-bag button {
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  padding: 4px 0;
}
.capture-paper .chip-bag button[aria-selected="true"] { color: var(--ink); border-bottom: 1px solid var(--ink); }

/* Settings — radio row variant */
.settings-row .radio-stack {
  display: flex; flex-direction: column;
  font-family: var(--font-mincho);
  font-size: 14px;
  text-align: right;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  gap: 2px;
}
.settings-row .radio-stack span { color: var(--ink); }

/* Mode segmented (writing mode in plan) */
.modes {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  border-top: 1px solid var(--paper-edge);
  border-bottom: 1px solid var(--paper-edge);
}
.modes button {
  padding: var(--s-4) var(--s-3);
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--ink-faint);
  border-right: 1px solid var(--paper-edge);
  text-align: left;
  display: flex; flex-direction: column; gap: 4px;
}
.modes button:last-child { border-right: 0; }
.modes button[aria-selected="true"] { color: var(--ink); background: var(--paper-deep); }
.modes button .mode-name { font-size: 14px; }
.modes button .mode-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

/* Primary text button (低调主按钮) */
.btn-quiet {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mincho);
  font-size: 14px;
  letter-spacing: 0.10em;
  color: var(--ink);
  padding: 10px 18px;
  border: 1px solid var(--ink);
  background: var(--paper);
}
.btn-quiet:hover { background: var(--ink); color: var(--paper); }
.btn-quiet.vermilion { border-color: var(--vermilion); color: var(--vermilion); }
.btn-quiet.vermilion:hover { background: var(--vermilion); color: var(--paper); }
.btn-quiet:disabled { color: var(--ink-ghost); border-color: var(--paper-edge); cursor: not-allowed; background: var(--paper); }
.btn-row { display: flex; gap: var(--s-4); padding-top: var(--s-4); }

/* === 全局新增 UI =================================================== */

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  top: 32px;
  transform: translateX(-50%) translateY(-20px);
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.06em;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 999;
  max-width: 80vw;
  text-align: center;
  line-height: 1.6;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.toast[data-kind="error"] { background: var(--vermilion); }
.toast[data-kind="success"] { background: oklch(48% 0.08 145); }

/* Modal */
.modal-mask {
  position: fixed; inset: 0; z-index: 998;
  background: oklch(20% 0.01 80 / 0.32);
  display: grid; place-items: center;
  animation: fadein .2s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
.modal {
  width: min(360px, 88vw);
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  padding: var(--s-6) var(--s-5) var(--s-4);
  font-family: var(--font-mincho);
}
.modal-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  letter-spacing: 0.04em;
  margin-bottom: var(--s-5);
}
.modal-foot {
  display: flex; gap: var(--s-3); justify-content: flex-end;
}
.modal-foot button {
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding: 8px 16px;
  border: 1px solid var(--paper-edge);
  color: var(--ink-faint);
}
.modal-foot .modal-ok { border-color: var(--ink); color: var(--ink); }
.modal-foot .modal-ok:hover { background: var(--ink); color: var(--paper); }

/* Loading 笔 */
.loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}
.loading::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--vermilion);
  display: inline-block;
  animation: breathe 1.4s ease-in-out infinite;
}

/* 行内 loading 占位 */
.spinner-line {
  display: inline-block;
  height: 1px;
  background: var(--ink-ghost);
  position: relative;
  overflow: hidden;
  vertical-align: middle;
}
.spinner-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper);
  animation: wipe 1.2s linear infinite;
  transform-origin: left center;
}
@keyframes wipe {
  0% { transform: scaleX(0); }
  50% { transform: scaleX(0); transform-origin: left center; }
  50.01% { transform-origin: right center; }
  100% { transform: scaleX(1); transform-origin: right center; }
}

/* 流式输出光标 */
.streaming-caret::after {
  content: "▍";
  color: var(--vermilion);
  animation: breathe 1s infinite;
  margin-left: 2px;
}

/* 输入框 / 文本域基础 */
.field {
  width: 100%;
  font-family: var(--font-mincho);
  font-size: 14.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--paper-edge);
  padding: 8px 0;
  outline: none;
  transition: border-color .2s ease;
}
.field:focus { border-bottom-color: var(--ink); }
.field::placeholder { color: var(--ink-ghost); }

textarea.field {
  resize: vertical;
  min-height: 96px;
  line-height: 1.8;
  border: 1px solid var(--paper-edge);
  padding: 12px 14px;
}
textarea.field:focus { border-color: var(--ink); }

/* 通用按钮的禁用、加载状态 */
button:disabled { cursor: not-allowed; opacity: 0.5; }

/* 入口卡片网格（index 启动器） */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s-5);
  padding: var(--s-7) var(--s-6) var(--s-8);
  max-width: 1080px;
  margin: 0 auto;
}
.entry-card {
  display: block;
  border: 1px solid var(--paper-edge);
  padding: var(--s-5);
  background: var(--paper);
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
  min-height: 168px;
}
.entry-card:hover {
  background: var(--paper-deep);
  border-color: var(--ink-ghost);
  transform: translateY(-2px);
}
.entry-card .entry-glyph {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  border: 1px solid var(--paper-edge);
  color: var(--ink);
  font-family: var(--font-mincho);
  font-size: 16px;
  margin-bottom: var(--s-3);
}
.entry-card h3 {
  font-family: var(--font-mincho);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin: 0 0 6px;
  color: var(--ink);
}
.entry-card p {
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-faint);
  line-height: 1.8;
  margin: 0;
  letter-spacing: 0.02em;
}

/* 索引页 hero */
.index-hero {
  padding: var(--s-9) var(--s-6) var(--s-6);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.index-hero .hero-icon {
  display: block;
  width: clamp(140px, 32vw, 200px);
  height: clamp(140px, 32vw, 200px);
  margin: 0 auto var(--s-5);
  border-radius: 22%;
  box-shadow: 0 1px 0 var(--paper-edge), 0 14px 40px -18px rgba(28,26,22,0.18);
  background: var(--paper);
}
.index-hero h1 {
  font-family: var(--font-mincho);
  font-size: clamp(40px, 7vw, 64px);
  letter-spacing: 0.18em;
  font-weight: 500;
  margin: 0 0 14px;
}
.index-hero .sub {
  font-family: var(--font-mincho);
  font-size: 15px;
  color: var(--ink-faint);
  letter-spacing: 0.12em;
  line-height: 1.9;
}
.index-hero .signature {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-ghost);
  margin-top: var(--s-4);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: var(--s-8) var(--s-5);
  color: var(--ink-faint);
  font-family: var(--font-mincho);
}
.empty-state .glyph {
  font-size: 32px;
  color: var(--ink-ghost);
  margin-bottom: var(--s-4);
  letter-spacing: 0.2em;
}
.empty-state .hint {
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  margin-bottom: var(--s-5);
}

/* Onboard 问答 */
.onboard {
  max-width: 560px;
  margin: 0 auto;
  padding: var(--s-7) var(--s-5) var(--s-9);
}
.onboard .progress {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-ghost);
  margin-bottom: var(--s-6);
  text-align: center;
}
.onboard .progress .now { color: var(--vermilion); }
.onboard-q {
  font-family: var(--font-mincho);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.5;
  margin: 0 0 var(--s-2);
  color: var(--ink);
}
.onboard-sub {
  font-family: var(--font-mincho);
  font-size: 13.5px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin: 0 0 var(--s-6);
  line-height: 1.85;
}
.onboard-options {
  display: flex; flex-direction: column;
  gap: 1px; background: var(--paper-edge);
  border-top: 1px solid var(--paper-edge);
  border-bottom: 1px solid var(--paper-edge);
  margin-bottom: var(--s-5);
}
.onboard-options button {
  background: var(--paper);
  padding: 14px 12px;
  text-align: left;
  font-family: var(--font-mincho);
  font-size: 15.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  display: flex; justify-content: space-between; align-items: center;
  line-height: 1.5;
  transition: background .15s ease;
}
.onboard-options button:hover { background: var(--paper-deep); }
.onboard-options button[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
}
.onboard-options button[aria-selected="true"] .key { color: oklch(85% 0.005 80); }
.onboard-options button .star { color: var(--vermilion); margin-right: 8px; font-size: 12px; }
.onboard-options button .key {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.18em; color: var(--ink-ghost);
}
.onboard-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-3);
}
.onboard-foot .back {
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-ghost);
  letter-spacing: 0.08em;
}
.onboard-foot .back:hover { color: var(--ink); }
.onboard-foot .next {
  font-family: var(--font-mincho);
  font-size: 14px;
  letter-spacing: 0.12em;
  padding: 10px 22px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: var(--paper);
}
.onboard-foot .next:hover { background: var(--ink); color: var(--paper); }
.onboard-foot .next:disabled { border-color: var(--paper-edge); color: var(--ink-ghost); }

/* Free 文本输入 */
.onboard-free {
  margin-top: var(--s-4);
  font-family: var(--font-mincho);
  font-size: 14.5px;
  letter-spacing: 0.04em;
}
.onboard-free input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--paper-edge);
  padding: 10px 0;
  font-family: var(--font-mincho);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--ink);
  outline: none;
  background: transparent;
}
.onboard-free input:focus { border-bottom-color: var(--ink); }

/* 项目卡片 hover */
.project-card { transition: transform .25s ease; cursor: pointer; }
.project-card:hover { transform: translateX(2px); }
.project-card:hover h2 { color: var(--vermilion); transition: color .2s ease; }

/* 流式 AI 文字"打字"效果（避免抖动） */
.ai-stream {
  font-family: var(--font-mincho);
  font-size: 17px;
  line-height: 2.05;
  letter-spacing: 0.02em;
  color: var(--ink);
  white-space: pre-wrap;
}

/* AI Banner —— 标识当前正在生成 */
.ai-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--paper-deep);
  border: 1px solid var(--paper-edge);
  font-family: var(--font-mincho);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-bottom: var(--s-5);
}
.ai-banner.error { border-color: var(--vermilion); color: var(--vermilion); }
.ai-banner .glyph {
  width: 6px; height: 6px;
  background: var(--vermilion);
  animation: breathe 1.6s infinite;
}
.ai-banner.done .glyph { animation: none; background: var(--ink); }
.ai-banner.error .glyph { animation: none; background: var(--vermilion); }

/* 设置区动作行 */
.row .stop {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-ghost);
  display: inline-block;
  margin-left: 8px;
}

.key-input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border: 0;
  border-bottom: 1px solid var(--paper-edge);
  padding: 8px 0;
  background: transparent;
  color: var(--ink);
  outline: none;
}
.key-input:focus { border-bottom-color: var(--ink); }

/* ── Native immersive: safe-area & status-bar ─────────────────────
   Cordova StatusBarOverlaysWebView=true 让状态栏透到 WebView 下，
   这里给 body 顶部留出 status bar 高度，避免顶部内容被遮 */
@supports (padding-top: env(safe-area-inset-top)) {
  html, body { background: var(--paper); }
  body {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  /* 全屏阅读/编辑器要让纸张延伸到状态栏底下：把内边距还原回顶层 fixed */
  body.edge-to-edge {
    padding-top: 0;
  }
  body.edge-to-edge .safe-top {
    padding-top: env(safe-area-inset-top);
  }
  /* 顶角 ghost 按钮再下沉一点 */
  .ghost.tr, .ghost.tl {
    top: calc(env(safe-area-inset-top, 0px) + 16px) !important;
  }
  .ghost-group.tr {
    top: calc(env(safe-area-inset-top, 0px) + 16px) !important;
  }
}

.ghost-group {
  position: fixed;
  z-index: 10;
  display: flex;
  gap: 4px;
}
.ghost-group.tr { top: 0; right: 0; }
.ghost-group .ghost {
  position: static;
  inset: auto;
}
.mask-icon {
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
}

/* ============================================================ */
/* 首页 · 底部细字行                                              */
/* ============================================================ */

.index-foot {
  text-align: center;
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-ghost);
  padding: var(--s-6) var(--s-5) var(--s-7);
}
.index-foot a {
  color: var(--ink-faint);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .25s ease, border-color .25s ease;
}
.index-foot a:hover { color: var(--vermilion); border-bottom-color: var(--vermilion); }
.index-foot .dot { color: var(--ink-ghost); margin: 0 10px; }

/* hero 间距收紧 */
.index-hero { padding-top: var(--s-7); padding-bottom: var(--s-5); }

/* ============================================================ */
/* 关于页 · 双卡布局                                              */
/* ============================================================ */

.about-screen {
  max-width: 1080px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top, 0px) + 60px) var(--s-5) var(--s-7);
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--s-6);
  align-items: start;
}
@media (max-width: 880px) {
  .about-screen { grid-template-columns: 1fr; gap: var(--s-5); }
  .about-left {
    position: static;
  }
}

.about-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-4);
  position: sticky;
  top: calc(env(safe-area-inset-top, 0px) + 72px);
}
.avatar-card {
  position: relative;
  width: clamp(220px, 60vw, 320px);
  height: clamp(220px, 60vw, 320px);
  padding: 12px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(186,55,42,.08), transparent 34%),
    linear-gradient(315deg, rgba(28,26,22,.06), transparent 40%),
    var(--paper);
  border-radius: 28px;
  box-shadow: 0 1px 0 var(--paper-edge), 0 24px 70px -34px rgba(28,26,22,0.30);
  outline: 1px solid var(--paper-edge);
  transition: outline-color .35s ease, transform .35s ease, box-shadow .35s ease;
}
.avatar-card::before,
.avatar-card::after {
  content: '';
  position: absolute;
  pointer-events: none;
}
.avatar-card::before {
  inset: 10px;
  border: 1px solid rgba(186,55,42,.12);
  border-radius: 22px;
}
.avatar-card::after {
  inset: -45%;
  background: linear-gradient(110deg, transparent 42%, rgba(255,255,255,.28) 50%, transparent 58%);
  transform: translateX(-34%) rotate(8deg);
  opacity: 0;
  transition: opacity .35s ease, transform .75s ease;
}
.avatar-card:hover,
.avatar-card:focus-visible {
  outline-color: var(--vermilion);
  outline-width: 2px;
  transform: translateY(-2px);
  box-shadow: 0 1px 0 var(--paper-edge), 0 28px 80px -32px rgba(186,55,42,0.32);
}
.avatar-card:hover::after,
.avatar-card:focus-visible::after {
  opacity: 1;
  transform: translateX(28%) rotate(8deg);
}
.avatar-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  display: block;
  background: var(--paper-deep);
}
.avatar-card .avatar-dot {
  position: absolute;
  background: var(--vermilion);
  border-radius: 50%;
  opacity: 0;
  transition: opacity .5s ease;
}
.avatar-card:hover .avatar-dot { opacity: 1; }
.avatar-card .avatar-dot.d1 { width: 8px; height: 8px; top: 18px; right: 22px; }
.avatar-card .avatar-dot.d2 { width: 5px; height: 5px; bottom: 30px; left: 26px; background: var(--ink-faint); }
.avatar-card .avatar-dot.d3 { width: 6px; height: 6px; bottom: 18px; right: 36px; background: var(--ink); }

.about-links {
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 12px;
}
.about-links a {
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .25s ease, border-color .25s ease;
}
.about-links a:hover { color: var(--vermilion); border-bottom-color: var(--vermilion); }
.about-links .sep { color: var(--ink-ghost); }

.about-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--ink-ghost);
  margin: 0;
}

.about-owner-card {
  width: min(100%, 320px);
  padding: 18px;
  border: 1px solid var(--paper-edge);
  border-radius: 18px;
  background:
    linear-gradient(rgba(120,96,70,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,96,70,.045) 1px, transparent 1px),
    rgba(255,255,255,.28);
  background-size: 22px 22px;
  box-shadow: 0 18px 50px -38px rgba(28,26,22,.35);
}
.about-owner-card .owner-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--vermilion);
}
.about-owner-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-mincho);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: .12em;
}
.about-owner-card p:not(.owner-kicker) {
  margin: 0;
  font-family: var(--font-mincho);
  font-size: 13.5px;
  line-height: 1.85;
  letter-spacing: .04em;
  color: var(--ink-soft);
}
.owner-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.owner-links a {
  padding: 6px 9px;
  border: 1px solid rgba(186,55,42,.18);
  border-radius: 999px;
  color: var(--vermilion);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  background: rgba(186,55,42,.04);
}
.owner-links a:hover {
  background: var(--vermilion);
  color: var(--paper);
}

.about-card {
  background:
    linear-gradient(rgba(120,96,70,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,96,70,.035) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
  border: 1px solid var(--paper-edge);
  border-radius: 22px;
  padding: clamp(28px, 4vw, 44px) clamp(24px, 4vw, 44px);
  box-shadow: 0 1px 0 var(--paper-edge), 0 22px 60px -32px rgba(28,26,22,0.22);
}
.about-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-4);
  flex-wrap: wrap;
}
.about-head h1 {
  font-family: var(--font-mincho);
  font-size: clamp(24px, 3.5vw, 32px);
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--ink);
  margin: 0;
}
.ver-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--vermilion);
  background: var(--vermilion-faint);
  padding: 6px 14px;
  border-radius: 999px;
}
.about-rule {
  height: 1px;
  background: var(--paper-edge);
  margin: 0 0 var(--s-5);
}
.about-sec { margin-bottom: var(--s-6); }
.about-sec:last-child { margin-bottom: 0; }
.about-sec h2 {
  font-family: var(--font-mincho);
  font-size: clamp(17px, 2.2vw, 20px);
  letter-spacing: 0.14em;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 var(--s-3);
  display: flex;
  align-items: center;
  gap: 12px;
}
.about-sec h2 .bar {
  width: 4px;
  height: 1.1em;
  background: var(--vermilion);
  border-radius: 2px;
  flex-shrink: 0;
}
.about-sec p {
  font-family: var(--font-mincho);
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 0 0 var(--s-3);
  padding-left: 16px;
}
.about-sec p.about-mute { color: var(--ink-faint); font-size: 13px; }
.about-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 16px;
}
.about-list li {
  position: relative;
  font-family: var(--font-mincho);
  font-size: 14.5px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--ink);
  padding-left: 18px;
  margin-bottom: 6px;
}
.about-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.85em;
  width: 6px; height: 6px;
  background: var(--vermilion);
  border-radius: 50%;
}

/* ============================================================ */
/* Agent · 聊天界面                                              */
/* ============================================================ */

body.agent-mode {
  background: var(--paper);
  min-height: 100vh;
  --agent-input-h: 132px;
}

.chat-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 760px;
  margin: 0 auto;
  padding: 0;
  position: relative;
}
.chat-screen[hidden] { display: none !important; }

.chat-header {
  flex: 0 0 auto;
  padding: calc(env(safe-area-inset-top, 0px) + 10px) var(--s-5) 12px;
  border-bottom: 1px solid var(--paper-edge);
  background: var(--paper);
}
.chat-topbar {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 52px;
  align-items: center;
  min-height: 36px;
}
.chat-header h1 {
  font-family: var(--font-mincho);
  font-size: 18px;
  letter-spacing: 0.16em;
  font-weight: 500;
  color: var(--ink);
  margin: 0;
  text-align: center;
  white-space: nowrap;
}
.chat-corner-slot {
  display: block;
  width: 52px;
  height: 1px;
}
.chat-stage {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--ink-ghost);
  margin: 2px 52px 0;
  min-height: 16px;
  text-align: center;
}
.chat-stage .now { color: var(--vermilion); }

.chat-modebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
}

.yc-switch {
  flex: 0 0 auto;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  user-select: none;
  cursor: pointer;
}
.yc-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  inset: 0 auto auto 0;
}
.yc-switch i {
  flex: 0 0 42px;
  position: relative;
  width: 42px;
  height: 24px;
  display: block;
  border-radius: 999px;
  background: var(--paper-deep);
  border: 1px solid var(--paper-edge);
  transition: background .2s ease, border-color .2s ease;
}
.yc-switch i::after {
  content: "";
  position: absolute;
  width: 17px;
  height: 17px;
  top: 1.5px;
  left: 2px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  box-shadow: 0 2px 8px rgba(28, 26, 22, 0.12);
  transition: transform .2s ease, border-color .2s ease;
}
.yc-switch input:checked + i {
  background: var(--ink);
  border-color: var(--ink);
}
.yc-switch input:checked + i::after {
  transform: translateX(18px);
  border-color: var(--ink);
}
.yc-switch:has(input:checked) { color: var(--ink); }

.chat-promote {
  flex: 0 0 auto;
  font-family: var(--font-mincho);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--vermilion);
  background: var(--paper);
  border: 1px solid var(--vermilion);
  padding: 4px 12px;
  cursor: pointer;
}
.chat-promote:hover:not(:disabled) { background: var(--vermilion); color: var(--paper); }
.chat-promote:disabled { color: var(--ink-ghost); border-color: var(--paper-edge); cursor: not-allowed; }

.role-card-open {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mincho);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  padding: 4px 11px 4px 8px;
  min-height: 28px;
  cursor: pointer;
  max-width: 150px;
}
.role-card-open:hover { border-color: var(--ink); background: var(--paper-deep); }
.role-card-open[hidden] { display: none !important; }
.role-card-open .mask-icon {
  width: 16px;
  height: 16px;
}
.role-card-open span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-stream {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--s-5) var(--s-5) calc(var(--agent-input-h) + 72px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  -webkit-overflow-scrolling: touch;
  min-height: 0;
  scroll-padding-bottom: calc(var(--agent-input-h) + 24px);
}

.bubble {
  max-width: 88%;
  min-width: 2.75em;
  padding: 12px 16px;
  border-radius: 18px;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}
.bubble.ai {
  align-self: flex-start;
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--font-mincho);
  border-bottom-left-radius: 6px;
}
.bubble.ai.streaming-caret::after {
  display: inline;
}
.thinking-fold {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid color-mix(in oklab, var(--paper-edge) 70%, transparent);
  font-family: var(--font-mincho);
}
.thinking-fold summary {
  width: max-content;
  color: var(--ink-ghost);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  cursor: pointer;
  user-select: none;
}
.thinking-fold summary:hover { color: var(--vermilion); }
.thinking-body {
  margin-top: 8px;
  color: var(--ink-faint);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.04em;
}
.bubble.user {
  align-self: flex-end;
  background: var(--vermilion-faint);
  color: var(--ink);
  font-family: var(--font-body);
  border-bottom-right-radius: 6px;
  border: 1px solid color-mix(in oklab, var(--vermilion) 22%, transparent);
}
.yc-line {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 96%;
  min-width: 0;
}
.yc-line.ai { align-self: flex-start; }
.yc-line.user { align-self: flex-end; }
.yc-line .bubble {
  flex: 0 1 auto;
  max-width: calc(100% - 42px);
  min-width: 4.5em;
  width: max-content;
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: break-word;
}
.yc-avatar,
.role-card-avatar {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--paper-edge);
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--font-mincho);
  font-size: 14px;
  line-height: 1;
}
.yc-line.user .yc-avatar {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.bubble.system {
  align-self: center;
  background: transparent;
  color: var(--ink-ghost);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 4px 8px;
}

.q-card {
  align-self: stretch;
  max-width: 100%;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: 18px;
  padding: var(--s-4) var(--s-5);
  box-shadow: 0 1px 0 var(--paper-edge), 0 14px 40px -28px rgba(28,26,22,0.18);
}
.q-card .q-title {
  font-family: var(--font-mincho);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--ink);
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.q-card .q-title::before {
  content: '';
  width: 4px; height: 1em;
  background: var(--vermilion);
  border-radius: 2px;
}
.q-card .q-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.q-card .q-opt {
  font-family: var(--font-mincho);
  font-size: 13.5px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  border: 1px solid var(--paper-edge);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  transition: all .2s ease;
}
.q-card .q-opt:hover { border-color: var(--vermilion); color: var(--vermilion); }
.q-card .q-opt.selected {
  background: var(--vermilion);
  color: var(--paper);
  border-color: var(--vermilion);
}
.q-card .q-opt .q-desc {
  display: block;
  font-size: 11.5px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-top: 2px;
}
.q-card .q-opt.selected .q-desc { color: rgba(255,255,255,0.75); }
.q-card .q-input {
  width: 100%;
  font: inherit;
  font-family: var(--font-mincho);
  font-size: 14.5px;
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  border-radius: 12px;
  background: var(--paper);
  color: var(--ink);
  margin-bottom: 12px;
  outline: none;
  transition: border-color .2s ease;
}
.q-card .q-input:focus { border-color: var(--vermilion); }
.q-card textarea.q-input { min-height: 72px; resize: vertical; line-height: 1.7; }
.q-card .q-number {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 12px;
}
.q-card .q-number button {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--paper-edge);
  font-family: var(--font-mincho);
  font-size: 18px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
}
.q-card .q-number button:hover { border-color: var(--vermilion); color: var(--vermilion); }
.q-card .q-number .q-num-val {
  font-family: var(--font-mincho);
  font-size: 28px;
  font-weight: 500;
  color: var(--ink);
  min-width: 60px;
  text-align: center;
}
.q-card .q-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.q-card .q-submit {
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.12em;
  padding: 8px 18px;
  border-radius: 10px;
  background: var(--vermilion);
  color: var(--paper);
  border: 1px solid var(--vermilion);
  cursor: pointer;
  transition: filter .2s ease;
}
.q-card .q-submit:hover { filter: brightness(1.08); }
.q-card .q-skip {
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.12em;
  padding: 8px 18px;
  border-radius: 10px;
  background: transparent;
  color: var(--ink-faint);
  border: 1px solid var(--paper-edge);
  cursor: pointer;
}
.q-card .q-skip:hover { color: var(--ink); }
.q-card.locked {
  background: var(--paper-deep);
  border-style: dashed;
  pointer-events: none;
  opacity: 0.85;
}
.q-card.locked .q-actions { display: none; }
.q-card.locked .q-opt:not(.selected) { opacity: 0.35; }
.q-card.locked .q-input { background: transparent; border-style: dashed; }

.progress-card {
  align-self: stretch;
  max-width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px dashed var(--paper-edge);
  border-radius: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  background: transparent;
}
.progress-card .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--vermilion);
  animation: pcdot 1.2s ease-in-out infinite;
}
.progress-card.done .dot { background: var(--ink); animation: none; }
.progress-card.error { color: var(--vermilion); border-color: var(--vermilion); }
.progress-card.error .dot { background: var(--vermilion); animation: none; }
@keyframes pcdot {
  0%, 100% { opacity: 0.3; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}

.chapter-bubble {
  align-self: stretch;
  max-width: 100%;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: 18px;
  padding: var(--s-5) var(--s-5) var(--s-4);
  box-shadow: 0 1px 0 var(--paper-edge), 0 18px 50px -32px rgba(28,26,22,0.20);
}
.chapter-bubble .cb-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--paper-edge);
}
.chapter-bubble .cb-title {
  font-family: var(--font-mincho);
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.chapter-bubble .cb-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-ghost);
}
.chapter-bubble .cb-body {
  font-family: var(--font-mincho);
  font-size: 15px;
  line-height: 2.0;
  letter-spacing: 0.03em;
  color: var(--ink);
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 360px;
  overflow-y: auto;
}
.chapter-bubble .cb-body blockquote {
  margin: 0 0 12px;
  padding: 8px 14px;
  border-left: 3px solid var(--vermilion);
  background: var(--vermilion-faint);
  color: var(--ink-faint);
  font-style: italic;
}
.chapter-bubble .cb-foot {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--paper-edge);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.chapter-bubble .cb-foot a {
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--vermilion);
  border-bottom: 1px solid var(--vermilion);
  padding-bottom: 1px;
}

.chat-input {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 10px var(--s-5) calc(env(safe-area-inset-bottom, 0px) + 12px);
  background: var(--paper);
  border-top: 1px solid var(--paper-edge);
}
.chat-input textarea {
  flex: 1 1 auto;
  resize: none;
  min-height: 56px;
  max-height: 160px;
  padding: 12px 14px;
  border: 1px solid var(--paper-edge);
  border-radius: 14px;
  font-family: var(--font-mincho);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  outline: none;
  overflow-y: auto;
  transition: border-color .2s ease;
}
.chat-input textarea:focus { border-color: var(--vermilion); }
.chat-input textarea:disabled {
  background: var(--paper-deep);
  color: var(--ink-ghost);
  cursor: not-allowed;
}
.chat-input .attach-file-btn {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-end;
  margin-bottom: 8px;
  background: var(--paper);
  color: var(--ink-faint);
  border: 1px solid var(--paper-edge);
  border-radius: 12px;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.chat-input .attach-file-btn:hover:not(:disabled) {
  color: var(--vermilion);
  border-color: var(--vermilion);
  filter: none;
}
.chat-input .attach-file-btn:active { background: var(--paper-deep); }
.chat-input button {
  flex: 0 0 auto;
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.14em;
  padding: 10px 18px;
  border-radius: 12px;
  background: var(--vermilion);
  color: var(--paper);
  border: 1px solid var(--vermilion);
  cursor: pointer;
  transition: filter .2s ease;
}
.chat-input button:hover:not(:disabled) { filter: brightness(1.08); }
.chat-input button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ============================================================ */
/* Agent · 快捷短语菜单（{} 按钮 + 弹出列表）                       */
/* ============================================================ */

/* {} 按钮：扁平 ghost 风，跟 .chat-input button (vermilion) 区分开 */
.chat-input .quick-prompt-btn {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  color: var(--ink-faint);
  border: 1px solid var(--paper-edge);
  border-radius: 12px;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.chat-input .quick-prompt-btn:hover:not(:disabled) {
  color: var(--vermilion);
  border-color: var(--vermilion);
  filter: none;
}
.chat-input .quick-prompt-btn:active { background: var(--paper-deep); }

/* 弹出 popover：贴在 footer 上沿，遮罩外点击关闭 */
.quick-prompt-pop {
  position: absolute;
  left: var(--s-5);
  right: var(--s-5);
  bottom: calc(env(safe-area-inset-bottom, 0px) + 64px);
  max-height: 50vh;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: 14px;
  box-shadow: 0 14px 40px -10px rgba(28, 26, 22, 0.18);
  overflow: hidden;
  z-index: 50;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
}
.quick-prompt-pop.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.qp-list {
  list-style: none;
  margin: 0;
  padding: 6px 0;
  max-height: 50vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.qp-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 18px;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-mincho);
  transition: background .15s ease;
}
.qp-item + .qp-item { border-top: 1px solid color-mix(in oklab, var(--paper-edge) 50%, transparent); }
.qp-item:hover { background: var(--paper-deep); }
.qp-item:active { background: color-mix(in oklab, var(--vermilion) 8%, var(--paper)); }
.qp-label {
  flex: 0 0 auto;
  font-size: 14.5px;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.qp-insert {
  flex: 1 1 auto;
  font-size: 12.5px;
  color: var(--ink-ghost);
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================ */
/* Agent · Session 抽屉                                          */
/* ============================================================ */

.session-drawer[hidden] { display: none !important; }
.session-drawer {
  position: fixed; inset: 0;
  z-index: 990;
}
.session-drawer .sd-mask {
  position: absolute; inset: 0;
  background: oklch(20% 0.01 80 / 0);
  transition: background .25s ease;
}
.session-drawer.open .sd-mask {
  background: oklch(20% 0.01 80 / 0.32);
}
.sd-panel {
  position: absolute;
  left: 0; top: 0;
  height: 100%;
  width: min(300px, 82vw);
  background: var(--paper);
  border-right: 1px solid var(--paper-edge);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform .25s ease;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  box-shadow: 6px 0 24px -16px rgba(28, 26, 22, 0.25);
}
.session-drawer.open .sd-panel { transform: translateX(0); }
.sd-head {
  flex: 0 0 auto;
  padding: var(--s-5) var(--s-5) var(--s-4);
  border-bottom: 1px solid var(--paper-edge);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.sd-home {
  font-family: var(--font-mincho);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  text-decoration: none;
  transition: color .2s ease;
}
.sd-home:hover { color: var(--vermilion); }
.sd-new {
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.18em;
  padding: 10px 14px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.sd-new:hover { background: var(--ink); color: var(--paper); }
.sd-list {
  list-style: none;
  margin: 0;
  padding: 6px 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1 1 auto;
}
.sd-item {
  padding: 12px 16px 12px 18px;
  border-left: 3px solid transparent;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.sd-item:hover { background: var(--paper-deep); }
.sd-item.current {
  border-left-color: var(--vermilion);
  background: color-mix(in oklab, var(--vermilion) 6%, var(--paper));
}
.sd-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sd-title {
  flex: 1 1 auto;
  font-family: var(--font-mincho);
  font-size: 14.5px;
  color: var(--ink);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sd-more {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--ink-faint);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  border-radius: 6px;
  transition: background .15s ease, color .15s ease;
}
.sd-more:hover { background: var(--paper-edge); color: var(--ink); }
.sd-meta {
  margin-top: 4px;
  font-family: var(--font-mincho);
  font-size: 11.5px;
  color: var(--ink-ghost);
  letter-spacing: 0.06em;
}
.sd-empty {
  padding: 24px 18px;
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-ghost);
  letter-spacing: 0.1em;
  text-align: center;
}

/* 会话操作浮层 —— 复用 .modal-mask / .modal，加竖向按钮排列 */
.modal.sd-action .sd-action-foot {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.modal.sd-action .sd-action-foot button {
  font-family: var(--font-mincho);
  font-size: 13.5px;
  letter-spacing: 0.14em;
  padding: 12px 16px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink);
  border-radius: 10px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.modal.sd-action .sd-action-foot .sd-rename:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.modal.sd-action .sd-action-foot .sd-delete {
  color: var(--vermilion);
  border-color: color-mix(in oklab, var(--vermilion) 40%, var(--paper-edge));
}
.modal.sd-action .sd-action-foot .sd-delete:hover {
  background: var(--vermilion);
  color: var(--paper);
  border-color: var(--vermilion);
}
.modal.sd-action .sd-action-foot .sd-cancel {
  color: var(--ink-faint);
}

/* ============================================================ */
/* Agent · Chat 初始页（无 ?session=）                              */
/* ============================================================ */

.chat-launch[hidden] { display: none !important; }
.chat-launch {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 0 var(--s-5) calc(env(safe-area-inset-bottom, 0px) + 24px);
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.launch-hero h1 {
  font-family: var(--font-mincho);
  font-size: 22px;
  letter-spacing: 0.2em;
  color: var(--ink);
  margin: 0 0 8px;
}
.launch-hero p {
  font-family: var(--font-mincho);
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.16em;
  margin: 0 0 32px;
}
.launch-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: min(280px, 80%);
}
.launch-actions .btn-primary,
.launch-actions .btn-quiet {
  font-family: var(--font-mincho);
  font-size: 13.5px;
  letter-spacing: 0.18em;
  padding: 12px 18px;
  border-radius: 12px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  transition: filter .2s ease, background .2s ease, color .2s ease;
}
.launch-actions .btn-primary {
  background: var(--vermilion);
  color: var(--paper);
  border: 1px solid var(--vermilion);
}
.launch-actions .btn-primary:hover { filter: brightness(1.08); }
.launch-actions .btn-quiet {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--paper-edge);
}
.launch-actions .btn-quiet:hover {
  border-color: var(--ink);
  background: var(--paper-deep);
}
.launch-recent {
  margin-top: 32px;
  width: min(320px, 86%);
}
.launch-recent[hidden] { display: none !important; }
.launch-recent h3 {
  font-family: var(--font-mincho);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--ink-ghost);
  font-weight: 400;
  text-align: left;
  margin: 0 0 8px;
}
.launch-recent ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.launch-recent li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 4px;
  border-bottom: 1px solid color-mix(in oklab, var(--paper-edge) 60%, transparent);
}
.launch-recent li:last-child { border-bottom: none; }
.launch-recent a {
  flex: 1 1 auto;
  font-family: var(--font-mincho);
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
}
.launch-recent a:hover { color: var(--vermilion); }
.launch-recent .meta {
  flex: 0 0 auto;
  font-family: var(--font-mincho);
  font-size: 11px;
  color: var(--ink-ghost);
  letter-spacing: 0.08em;
}

/* 空 session 引导提示 */
.empty-hint {
  margin: 24px auto;
  max-width: 320px;
  padding: 14px 18px;
  font-family: var(--font-mincho);
  font-size: 12.5px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  line-height: 1.8;
  text-align: center;
  border: 1px dashed var(--paper-edge);
  border-radius: 12px;
  background: color-mix(in oklab, var(--paper-deep) 50%, var(--paper));
}
.empty-hint b {
  font-weight: normal;
  color: var(--vermilion);
  padding: 0 4px;
  border: 1px solid color-mix(in oklab, var(--vermilion) 40%, var(--paper-edge));
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  font-size: 11px;
}

.scroll-bottom-btn {
  position: fixed;
  left: 50%;
  bottom: calc(var(--agent-input-h) + 16px + env(safe-area-inset-bottom, 0px));
  z-index: 39;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  transform: translateX(-50%) translateY(8px);
  border: 1px solid var(--paper-edge);
  border-radius: 999px;
  background: color-mix(in oklab, var(--paper) 94%, white);
  color: var(--ink-faint);
  box-shadow: 0 10px 24px -14px rgba(28, 26, 22, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease, color .18s ease, border-color .18s ease;
}
.scroll-bottom-btn[hidden] { display: grid !important; }
.scroll-bottom-btn.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.scroll-bottom-btn:hover {
  color: var(--vermilion);
  border-color: var(--vermilion);
}

/* ============================================================ */
/* Agent · 底部工具条（模型 / 文风 / 短语切换芯片）                  */
/* ============================================================ */

/* footer 改两行布局 */
.chat-input {
  position: fixed;
  left: 50%;
  right: auto;
  bottom: 0;
  z-index: 40;
  width: min(760px, 100vw);
  transform: translateX(-50%);
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 10px var(--s-5) calc(10px + env(safe-area-inset-bottom, 0px));
  background: color-mix(in oklab, var(--paper) 94%, white);
  border-top: 1px solid color-mix(in oklab, var(--paper-edge) 80%, transparent);
  box-shadow: 0 -12px 28px -24px rgba(28, 26, 22, 0.36);
}
.chat-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
}
.chat-tools-spacer { flex: 1 1 auto; }

/* 工具芯片（模型 / 文风）—— ghost 风，跟 vermilion 发送按钮区分 */
.chat-input .chat-tool {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink-faint);
  border: 1px solid var(--paper-edge);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease, filter .2s ease;
}
.chat-input .chat-tool:hover:not(:disabled) {
  color: var(--vermilion);
  border-color: var(--vermilion);
  filter: none;
}
.chat-input .chat-tool:active { background: var(--paper-deep); }
.chat-input .chat-tool .tool-icon { font-size: 12px; line-height: 1; }
.chat-input .chat-tool .tool-label {
  white-space: nowrap;
  max-width: 7em;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-input .chat-tool .tool-caret { font-size: 9px; color: var(--ink-ghost); }

/* 第二行：输入 + 发送 */
.chat-input-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

/* 模型 / 文风浮层 —— 复用 quick-prompt-pop 视觉，定位略调 */
.tool-pop {
  position: fixed;
  left: calc(50% - min(380px, 50vw) + var(--s-5));
  bottom: calc(var(--agent-input-h) + 10px + env(safe-area-inset-bottom, 0px));
  width: min(260px, 80vw);
  max-height: 50vh;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  border-radius: 14px;
  box-shadow: 0 14px 40px -10px rgba(28, 26, 22, 0.18);
  overflow: hidden;
  z-index: 50;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
}
.tool-pop[hidden] { display: none !important; }
.tool-pop.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.tool-pop.tool-pop-right {
  left: auto;
  right: calc(50% - min(380px, 50vw) + var(--s-5));
}
.tool-pop-list {
  list-style: none;
  margin: 0;
  padding: 6px 0;
  max-height: 50vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.tool-pop-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-mincho);
  transition: background .15s ease;
  border-left: 3px solid transparent;
}
.tool-pop-list li + li { border-top: 1px solid color-mix(in oklab, var(--paper-edge) 50%, transparent); }
.tool-pop-list li:hover { background: var(--paper-deep); }
.tool-pop-list li:active { background: color-mix(in oklab, var(--vermilion) 8%, var(--paper)); }
.tool-pop-list li.current {
  border-left-color: var(--vermilion);
  background: color-mix(in oklab, var(--vermilion) 6%, var(--paper));
}
.tp-label {
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.06em;
}
.tp-desc {
  font-size: 11.5px;
  color: var(--ink-ghost);
  letter-spacing: 0.04em;
}

/* quick-prompt popover 定位：贴右下角，跟模型/文风浮层错开 */
.quick-prompt-pop {
  position: fixed;
  left: auto;
  right: calc(50% - min(380px, 50vw) + var(--s-5));
  width: min(260px, 80vw);
  bottom: calc(var(--agent-input-h) + 10px + env(safe-area-inset-bottom, 0px));
}

.role-card-modal[hidden] { display: none !important; }
.role-card-modal {
  position: fixed;
  inset: 0;
  z-index: 1005;
  display: grid;
  place-items: center;
  padding: 18px;
}
.role-card-mask {
  position: absolute;
  inset: 0;
  background: oklch(20% 0.01 80 / 0.38);
  opacity: 0;
  transition: opacity .18s ease;
}
.role-card-modal.open .role-card-mask { opacity: 1; }
.role-card-panel {
  position: relative;
  width: min(760px, 94vw);
  max-height: min(820px, 92vh);
  overflow: auto;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  box-shadow: 0 22px 60px rgba(28, 26, 22, 0.18);
  font-family: var(--font-mincho);
  transform: translateY(10px);
  opacity: 0;
  transition: transform .18s ease, opacity .18s ease;
}
.role-card-modal.open .role-card-panel {
  transform: translateY(0);
  opacity: 1;
}
.role-card-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 14px;
  background: color-mix(in oklab, var(--paper) 94%, white);
  border-bottom: 1px solid var(--paper-edge);
}
.role-card-head h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.22em;
  font-weight: 500;
}
.role-card-head p {
  margin: 6px 0 0;
  color: var(--ink-ghost);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}
.role-card-close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink-faint);
  font-size: 24px;
  line-height: 1;
}
.role-card-close:hover { color: var(--ink); border-color: var(--ink); }
.role-card-import {
  padding: 16px 20px;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--paper-edge);
}
.role-card-import textarea + .role-card-import-actions {
  margin-bottom: 12px;
}
.role-card-tabs {
  display: flex;
  gap: 8px;
  padding: 12px 20px 0;
  background: var(--paper);
}
.role-card-tabs button {
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink-faint);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.16em;
  padding: 7px 12px;
}
.role-card-tabs button.current {
  border-color: var(--ink);
  color: var(--paper);
  background: var(--ink);
}
.role-card-picker {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: visible;
  padding: 16px 20px;
  border-bottom: 1px solid var(--paper-edge);
  background: var(--paper);
}
.mask-select-modal .role-card-panel {
  width: min(420px, 92vw);
}
.role-card-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink-faint);
  padding: 5px 10px 5px 6px;
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.role-select-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  font-family: var(--font-mincho);
  text-align: left;
}
.role-select-item:hover {
  border-color: var(--ink);
  background: var(--paper-deep);
}
.role-select-item.current {
  border-color: var(--vermilion);
  background: color-mix(in oklab, var(--vermilion) 6%, var(--paper));
}
.role-select-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.role-select-main b {
  color: var(--ink);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.06em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.role-select-main small {
  color: var(--ink-ghost);
  font-size: 11px;
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.role-select-empty {
  border: 1px dashed var(--paper-edge);
  padding: 14px;
  color: var(--ink-ghost);
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.05em;
  line-height: 1.8;
}
.role-card-chip.current {
  border-color: var(--vermilion);
  color: var(--vermilion);
  background: color-mix(in oklab, var(--vermilion) 6%, var(--paper));
}
.role-card-chip .role-card-avatar {
  width: 24px;
  height: 24px;
  font-size: 12px;
}
.role-card-manage {
  flex: 0 0 auto;
  color: var(--ink-ghost);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid transparent;
}
.role-card-manage:hover {
  color: var(--vermilion);
  border-bottom-color: var(--vermilion);
}
.role-card-import textarea,
.role-card-form textarea,
.role-card-form input {
  width: 100%;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mincho);
  font-size: 13px;
  line-height: 1.65;
  padding: 9px 10px;
  resize: vertical;
}
.role-card-import textarea:focus,
.role-card-form textarea:focus,
.role-card-form input:focus {
  outline: none;
  border-color: var(--vermilion);
}
.role-card-import-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 10px;
}
.role-card-import-actions button,
.role-card-foot button {
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.14em;
  padding: 8px 14px;
}
.role-card-import-actions button:hover,
.role-card-foot button:hover { border-color: var(--ink); background: var(--paper-deep); }
.role-card-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 18px 20px 8px;
}
.role-card-section h3 {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  font-weight: 500;
}
.role-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.role-card-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.role-card-field span,
.role-card-example b {
  color: var(--ink-ghost);
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 400;
}
.role-card-examples {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.role-card-example {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 10px;
  border: 1px solid var(--paper-edge);
  background: color-mix(in oklab, var(--paper-deep) 55%, var(--paper));
}
.role-card-foot {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px 18px;
  background: color-mix(in oklab, var(--paper) 94%, white);
  border-top: 1px solid var(--paper-edge);
}
.role-card-foot #role-card-save {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.role-card-foot #role-card-reset { color: var(--vermilion); }
.role-card-edit-link {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.14em;
  padding: 8px 14px;
}

@media (max-width: 680px) {
  .role-card-modal { padding: 10px; place-items: end center; }
  .role-card-panel {
    width: 100%;
    max-height: 88vh;
  }
  .role-card-grid,
  .role-card-examples { grid-template-columns: 1fr; }
  .role-card-head,
  .role-card-import,
  .role-card-form,
  .role-card-foot { padding-left: 14px; padding-right: 14px; }
}

/* 我的角色卡页面 */
.role-cards-page {
  background: var(--paper);
  min-height: 100vh;
}
.role-cards-shell {
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: calc(var(--s-8) + 16px) var(--s-6) var(--s-8);
}
.role-cards-head {
  text-align: center;
  margin-bottom: var(--s-7);
}
.role-cards-head h1 {
  margin: 0;
  font-family: var(--font-mincho);
  font-size: 28px;
  letter-spacing: 0.22em;
  font-weight: 500;
  color: var(--ink);
}
.role-cards-head p {
  margin: 10px 0 0;
  font-family: var(--font-mincho);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-ghost);
}
.role-cards-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}
.role-cards-list,
.role-cards-editor {
  border: 1px solid var(--paper-edge);
  background: var(--paper);
}
.role-cards-list {
  position: sticky;
  top: 24px;
  padding: 14px;
}
.rc-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}
.rc-list-head button,
.rc-editor-head button {
  border: 1px solid var(--paper-edge);
  padding: 6px 10px;
  color: var(--ink);
  background: var(--paper);
  font-size: 12px;
  letter-spacing: 0.12em;
}
.rc-list-head button:hover,
.rc-editor-head button:hover {
  border-color: var(--ink);
  background: var(--paper-deep);
}
#ai-card-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#ai-card-list button,
.user-card-entry {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  padding: 9px;
  border: 1px solid var(--paper-edge);
  background: var(--paper);
  font-family: var(--font-mincho);
}
#ai-card-list button.current,
.user-card-entry:hover,
#ai-card-list button:hover {
  border-color: var(--vermilion);
  background: color-mix(in oklab, var(--vermilion) 5%, var(--paper));
}
#ai-card-list b,
.user-card-entry b {
  display: block;
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}
#ai-card-list small,
.user-card-entry small {
  display: block;
  margin-top: 2px;
  max-width: 170px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--ink-ghost);
  font-size: 11px;
}
.rc-empty {
  padding: 16px 8px;
  color: var(--ink-ghost);
  font-family: var(--font-mincho);
  font-size: 13px;
  text-align: center;
}
.rc-editor-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--paper-edge);
}
.rc-editor-head h2 {
  margin: 0;
  font-family: var(--font-mincho);
  font-size: 19px;
  letter-spacing: 0.16em;
  font-weight: 500;
}
.rc-editor-head p {
  margin: 6px 0 0;
  color: var(--ink-ghost);
  font-family: var(--font-mincho);
  font-size: 12px;
  letter-spacing: 0.06em;
}

@media (max-width: 760px) {
  .role-cards-shell {
    padding-left: var(--s-4);
    padding-right: var(--s-4);
  }
  .role-cards-layout {
    grid-template-columns: 1fr;
  }
  .role-cards-list {
    position: static;
  }
}

/* ============================================================ */
/* 5.12 · Global UI polish                                      */
/* ============================================================ */

:root {
  --surface-soft: color-mix(in oklab, var(--paper) 88%, white);
  --surface-raised: color-mix(in oklab, var(--paper) 94%, white);
  --hairline-soft: color-mix(in oklab, var(--paper-edge) 76%, transparent);
  --shadow-soft: 0 18px 48px -36px rgba(28, 26, 22, 0.42);
  --tap-min: 44px;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at 16% -8%, color-mix(in oklab, var(--vermilion) 7%, transparent) 0 22%, transparent 42%),
    linear-gradient(180deg, color-mix(in oklab, var(--paper) 92%, white), var(--paper));
}

body {
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.20), transparent 18%, transparent 82%, rgba(255,255,255,0.16)),
    var(--paper);
  -webkit-tap-highlight-color: transparent;
}

button,
a,
input,
textarea,
select,
[contenteditable="true"] {
  touch-action: manipulation;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[contenteditable="true"]:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--vermilion) 72%, transparent);
  outline-offset: 3px;
}

button,
.btn-quiet,
.chat-tool,
.q-opt,
.role-select-item,
#ai-card-list button,
.user-card-entry,
.entry-card {
  transition:
    background-color .18s ease,
    border-color .18s ease,
    color .18s ease,
    box-shadow .18s ease,
    transform .18s ease,
    opacity .18s ease;
}

button:active,
.btn-quiet:active,
.entry-card:active,
.q-opt:active,
.role-select-item:active,
#ai-card-list button:active,
.user-card-entry:active {
  transform: translateY(1px);
}

.ghost {
  top: calc(env(safe-area-inset-top, 0px) + 2px);
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  border-radius: 999px;
}
.ghost:hover,
.ghost:focus-visible {
  background: color-mix(in oklab, var(--paper-deep) 82%, transparent);
}
.ghost.tl { top: calc(env(safe-area-inset-top, 0px) + 2px); left: 4px; }
.ghost.tr { top: calc(env(safe-area-inset-top, 0px) + 2px); right: 4px; }
.ghost.bl { top: auto; bottom: calc(env(safe-area-inset-bottom, 0px) + 4px); left: 4px; }
.ghost.br { top: auto; bottom: calc(env(safe-area-inset-bottom, 0px) + 4px); right: 4px; }
.ghost-group.tr {
  top: calc(env(safe-area-inset-top, 0px) + 2px);
  right: 4px;
}
.ghost-group .ghost {
  position: relative;
  top: auto;
  right: auto;
  left: auto;
}

.modal,
.q-card,
.chapter-bubble,
.session-panel,
.role-card-panel,
.role-cards-list,
.role-cards-editor,
.about-card,
.export-card,
.account-card,
.entry-card {
  background: var(--surface-raised);
  border-color: var(--hairline-soft);
  box-shadow: var(--shadow-soft);
}

.modal,
.q-card,
.chapter-bubble,
.role-card-panel,
.role-cards-list,
.role-cards-editor,
.about-card,
.account-card,
.entry-card {
  border-radius: 16px;
}

.modal-mask,
.role-card-modal,
.session-drawer {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

input,
textarea,
select,
.key-input,
.q-card .q-input,
.role-card-import textarea,
.role-card-form textarea,
.role-card-form input,
.chat-input textarea {
  background: color-mix(in oklab, var(--paper) 96%, white);
  border-color: var(--hairline-soft);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.36);
}

input:focus,
textarea:focus,
select:focus,
.key-input:focus,
.q-card .q-input:focus,
.role-card-import textarea:focus,
.role-card-form textarea:focus,
.role-card-form input:focus,
.chat-input textarea:focus {
  border-color: color-mix(in oklab, var(--vermilion) 78%, var(--paper-edge));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.42),
    0 0 0 3px color-mix(in oklab, var(--vermilion) 12%, transparent);
}

.toast {
  top: calc(env(safe-area-inset-top, 0px) + 18px);
  border-radius: 999px;
  box-shadow: 0 16px 34px -22px rgba(28,26,22,0.46);
}

.chat-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in oklab, var(--paper) 92%, white);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.chat-modebar {
  min-height: 34px;
}

.yc-switch {
  padding: 3px 0;
}

.yc-switch i {
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.45);
}

.chat-promote,
.role-card-open,
.chat-input .chat-tool,
.chat-input .quick-prompt-btn,
.chat-input .attach-file-btn {
  min-height: 36px;
  border-color: var(--hairline-soft);
  background: color-mix(in oklab, var(--paper) 94%, white);
  box-shadow: 0 8px 22px -20px rgba(28,26,22,0.32);
}

.chat-promote:hover:not(:disabled),
.role-card-open:hover,
.chat-input .chat-tool:hover:not(:disabled),
.chat-input .quick-prompt-btn:hover:not(:disabled),
.chat-input .attach-file-btn:hover:not(:disabled) {
  box-shadow: 0 10px 24px -18px color-mix(in oklab, var(--vermilion) 40%, transparent);
}

.chat-input {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--paper) 80%, transparent), var(--surface-raised) 22%),
    var(--surface-raised);
  border-top-color: var(--hairline-soft);
  box-shadow: 0 -18px 46px -38px rgba(28,26,22,0.52);
}

.chat-input-row {
  min-height: 88px;
}

.chat-input textarea {
  min-height: 88px;
  border-radius: 16px;
  padding: 14px 15px;
}

.chat-input button:not(.chat-tool):not(.quick-prompt-btn):not(.attach-file-btn) {
  min-height: 44px;
  box-shadow: 0 10px 24px -18px color-mix(in oklab, var(--vermilion) 58%, transparent);
}

.chat-stream {
  gap: 14px;
}

.bubble {
  border-radius: 16px;
}

.bubble.ai {
  border: 1px solid var(--hairline-soft);
  background: color-mix(in oklab, var(--paper-deep) 80%, white);
  box-shadow: 0 12px 34px -30px rgba(28,26,22,0.40);
}

.bubble.user {
  background: color-mix(in oklab, var(--vermilion) 7%, var(--paper));
}

.yc-avatar,
.role-card-avatar {
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.46), 0 10px 24px -20px rgba(28,26,22,0.38);
}

.thinking-fold {
  background: color-mix(in oklab, var(--paper) 68%, transparent);
  border: 1px solid var(--hairline-soft);
  border-radius: 12px;
  padding: 8px 10px;
}

.thinking-fold summary {
  display: flex;
  align-items: center;
  gap: 7px;
}

.thinking-fold summary::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vermilion);
  opacity: .72;
}

.thinking-body {
  max-height: 180px;
  overflow-y: auto;
  padding-right: 4px;
}

.q-card .q-opt,
.q-card .q-submit,
.q-card .q-cancel,
.role-card-import-actions button,
.role-card-foot button,
.rc-list-head button,
.rc-editor-head button {
  min-height: 36px;
}

.q-card .q-opt {
  background: color-mix(in oklab, var(--paper) 94%, white);
}

.q-card .q-submit {
  box-shadow: 0 10px 24px -18px color-mix(in oklab, var(--vermilion) 58%, transparent);
}

.quick-prompt-pop,
.tool-pop {
  background: var(--surface-raised);
  border-color: var(--hairline-soft);
  box-shadow: 0 22px 54px -26px rgba(28,26,22,0.42);
}

.session-panel {
  border-right: 1px solid var(--hairline-soft);
}

.sd-home,
.sd-new,
.sd-item,
.role-select-item,
#ai-card-list button,
.user-card-entry {
  border-radius: 12px;
}

.sd-item:hover,
.role-select-item:hover,
#ai-card-list button:hover,
.user-card-entry:hover {
  box-shadow: 0 12px 26px -24px rgba(28,26,22,0.38);
}

.role-cards-shell {
  padding-top: calc(var(--s-8) + env(safe-area-inset-top, 0px) + 14px);
}

.role-cards-list,
.role-cards-editor {
  overflow: hidden;
}

.role-card-foot {
  background: color-mix(in oklab, var(--paper) 90%, white);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.role-card-field span,
.role-card-example b,
.rc-list-head,
.rc-editor-head p {
  text-wrap: balance;
}

.role-card-form textarea,
.role-card-import textarea {
  resize: vertical;
}

body:has(.library-wrap) .project-card {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  border-bottom-color: var(--paper-edge);
}

body:has(.library-wrap) .project-card:hover {
  background: transparent;
  box-shadow: none;
}

@media (hover: none) {
  .ghost:hover,
  .btn-quiet:hover,
  .entry-card:hover,
  .chat-input .chat-tool:hover,
  .chat-input .quick-prompt-btn:hover,
  .chat-input .attach-file-btn:hover {
    filter: none;
  }
}

@media (max-width: 680px) {
  .modal,
  .q-card,
  .chapter-bubble,
  .role-cards-list,
  .role-cards-editor {
    border-radius: 14px;
  }

  .chat-header {
    padding-left: var(--s-4);
    padding-right: var(--s-4);
  }

  .chat-modebar {
    gap: 8px;
  }

  .chat-promote {
    padding-left: 10px;
    padding-right: 10px;
  }

  .role-card-open {
    max-width: 132px;
  }

  .chat-stream {
    padding-left: var(--s-4);
    padding-right: var(--s-4);
  }

  .chat-input {
    padding-left: var(--s-4);
    padding-right: var(--s-4);
  }

  .chat-tools {
    overflow-x: auto;
    scrollbar-width: none;
  }
  .chat-tools::-webkit-scrollbar { display: none; }

  .bubble {
    max-width: 92%;
  }

  .yc-line {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
}

/* 5.12 · Radius correction: 纸面不要软糖感 */
.modal,
.q-card,
.chapter-bubble,
.bubble,
.chat-input textarea,
.quick-prompt-pop,
.tool-pop,
.session-panel,
.sd-item,
.sd-new,
.sd-home,
.role-card-panel,
.role-card-modal .role-card-panel,
.role-select-item,
.role-cards-list,
.role-cards-editor,
.role-card-import textarea,
.role-card-form textarea,
.role-card-form input,
.role-card-example,
.about-card,
.export-card,
.account-card,
.entry-card {
  border-radius: 8px;
}

.chat-input .chat-tool,
.chat-input .quick-prompt-btn,
.chat-input .attach-file-btn,
.chat-input button,
.q-card .q-input,
.q-card .q-submit,
.q-card .q-cancel,
.role-card-import-actions button,
.role-card-foot button,
.rc-list-head button,
.rc-editor-head button,
#ai-card-list button,
.user-card-entry {
  border-radius: 6px;
}

.thinking-fold,
.danger-zone {
  border-radius: 4px;
}

.bubble.ai {
  border-bottom-left-radius: 3px;
}

.bubble.user {
  border-bottom-right-radius: 3px;
}

@media (max-width: 680px) {
  .modal,
  .q-card,
  .chapter-bubble,
  .role-cards-list,
  .role-cards-editor {
    border-radius: 8px;
  }
}

/* 5.12 · Paper surface for index + role cards */
.index-page,
.role-cards-page {
  background:
    linear-gradient(90deg, rgba(255,255,255,.18), transparent 16%, transparent 84%, rgba(255,255,255,.12)),
    radial-gradient(circle at 90% 8%, color-mix(in oklab, var(--vermilion) 5%, transparent) 0 10%, transparent 28%),
    var(--paper);
}

.index-page::before,
.role-cards-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .46;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 31px,
      color-mix(in oklab, var(--paper-edge) 28%, transparent) 32px
    );
  mask-image: linear-gradient(to bottom, transparent 0, #000 120px, #000 calc(100% - 80px), transparent);
}

.index-page > *,
.role-cards-page > * {
  position: relative;
  z-index: 1;
}

.index-page .index-hero {
  text-align: left;
  padding-top: calc(var(--s-8) + env(safe-area-inset-top, 0px));
  padding-bottom: var(--s-5);
}

.index-page .index-hero .hero-icon {
  margin-left: 0;
  width: clamp(108px, 25vw, 156px);
  height: clamp(108px, 25vw, 156px);
  border-radius: 6px;
  box-shadow:
    0 1px 0 var(--paper-edge),
    12px 14px 0 -10px color-mix(in oklab, var(--paper-edge) 45%, transparent);
}

.index-page .index-hero .sub {
  max-width: 28em;
  margin: 0;
  color: var(--ink);
}

.index-page .index-hero .signature {
  margin-top: var(--s-3);
}

.index-page .entry-grid {
  gap: 0;
  padding-top: var(--s-5);
}

.index-page .entry-card {
  position: relative;
  min-height: 154px;
  padding: 22px 22px 20px;
  border: 0;
  border-top: 1px solid var(--paper-edge);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.index-page .entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: color-mix(in oklab, var(--paper-edge) 78%, transparent);
}

.index-page .entry-card:hover {
  background: color-mix(in oklab, var(--paper-deep) 38%, transparent);
  border-color: var(--paper-edge);
  box-shadow: none;
  transform: translateX(2px);
}

.index-page .entry-card .entry-glyph {
  width: 34px;
  height: 34px;
  border-radius: 3px;
  background: color-mix(in oklab, var(--paper) 78%, white);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.38);
}

.index-page #resume-banner > div {
  background: transparent;
}

.role-cards-page .role-cards-shell {
  width: min(1100px, 100%);
}

.role-cards-page .role-cards-head {
  text-align: left;
  padding-left: 18px;
  border-left: 2px solid var(--vermilion);
}

.role-cards-page .role-cards-head h1 {
  font-size: clamp(28px, 5vw, 40px);
  letter-spacing: 0.24em;
}

.role-cards-page .role-cards-layout {
  gap: 28px;
}

.role-cards-page .role-cards-list,
.role-cards-page .role-cards-editor {
  border-radius: 0;
  border-color: var(--paper-edge);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--paper) 90%, white), transparent 180px),
    transparent;
  box-shadow: none;
}

.role-cards-page .role-cards-list {
  border-width: 0 0 0 1px;
  padding: 6px 0 6px 18px;
  top: calc(24px + env(safe-area-inset-top, 0px));
}

.role-cards-page .role-cards-editor {
  border-width: 1px 0;
}

.role-cards-page .rc-editor-head,
.role-cards-page .role-card-import,
.role-cards-page .role-card-form,
.role-cards-page .role-card-foot {
  background: transparent;
}

.role-cards-page .role-card-import {
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 27px,
      color-mix(in oklab, var(--paper-edge) 32%, transparent) 28px
    );
}

.role-cards-page #ai-card-list button,
.role-cards-page .user-card-entry,
.role-cards-page .role-card-example,
.role-cards-page .role-card-import textarea,
.role-cards-page .role-card-form textarea,
.role-cards-page .role-card-form input {
  border-radius: 3px;
  background: color-mix(in oklab, var(--paper) 72%, transparent);
  box-shadow: none;
}

.role-cards-page #ai-card-list button.current,
.role-cards-page #ai-card-list button:hover,
.role-cards-page .user-card-entry:hover {
  background: color-mix(in oklab, var(--vermilion) 5%, transparent);
}

.role-cards-page .role-card-avatar {
  border-radius: 4px;
}

.role-cards-page .role-card-foot {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

@media (max-width: 760px) {
  .index-page .entry-grid {
    grid-template-columns: 1fr;
    padding-left: var(--s-5);
    padding-right: var(--s-5);
  }

  .role-cards-page .role-cards-head {
    padding-left: 14px;
  }

  .role-cards-page .role-cards-list {
    border-width: 1px 0;
    padding: 14px 0;
  }
}

/* 5.12 · Toolbar placement + weak paper tuning */
.index-page > .ghost.tr {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 6px);
  right: 8px;
  left: auto;
  z-index: 60;
}

.role-cards-page > .ghost.tl {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 6px);
  left: 8px;
  right: auto;
  z-index: 60;
}

.role-cards-page > .ghost.tr {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 6px);
  right: 8px;
  left: auto;
  z-index: 60;
}

.index-page::before,
.role-cards-page::before {
  opacity: .22;
  background:
    linear-gradient(color-mix(in oklab, var(--paper-edge) 24%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--paper-edge) 18%, transparent) 1px, transparent 1px);
  background-size: 32px 32px, 32px 32px;
  mask-image: linear-gradient(to bottom, transparent 0, #000 96px, #000 calc(100% - 64px), transparent);
}

.index-page .index-hero {
  text-align: center;
  padding-top: var(--s-9);
  padding-bottom: var(--s-6);
}

.index-page .index-hero .hero-icon {
  margin: 0 auto var(--s-5);
  width: clamp(140px, 32vw, 200px);
  height: clamp(140px, 32vw, 200px);
  border-radius: 22%;
  box-shadow: 0 1px 0 var(--paper-edge), 0 14px 40px -18px rgba(28,26,22,0.18);
}

.index-page .index-hero .sub {
  max-width: none;
  margin: 0 auto;
  color: var(--ink-faint);
}

.index-page .entry-grid {
  gap: var(--s-5);
  padding-top: var(--s-7);
}

.index-page .entry-card {
  border: 1px solid color-mix(in oklab, var(--paper-edge) 72%, transparent);
  border-radius: 8px;
  background: color-mix(in oklab, var(--paper) 82%, transparent);
  box-shadow: none;
}

.index-page .entry-card::before {
  display: none;
}

.index-page .entry-card:hover {
  transform: translateY(-2px);
  background: color-mix(in oklab, var(--paper-deep) 64%, var(--paper));
}

.role-cards-page .role-cards-head {
  text-align: center;
  padding-left: 0;
  border-left: 0;
}

.role-cards-page .role-cards-head h1 {
  font-size: 28px;
}

.role-cards-page .role-cards-layout {
  gap: 22px;
}

.role-cards-page .role-cards-list,
.role-cards-page .role-cards-editor {
  border: 1px solid color-mix(in oklab, var(--paper-edge) 78%, transparent);
  border-radius: 8px;
  background: color-mix(in oklab, var(--paper) 86%, transparent);
  box-shadow: none;
}

.role-cards-page .role-cards-list {
  padding: 14px;
}

.role-cards-page .role-card-import {
  background: color-mix(in oklab, var(--paper-deep) 38%, transparent);
}

/* Index-only drawn grid background */
.index-page {
  background:
    radial-gradient(circle at 50% 7%, rgba(255,255,255,.34), transparent 28%),
    var(--paper);
}

.index-page::before {
  opacity: .62;
  background:
    linear-gradient(color-mix(in oklab, var(--paper-edge) 34%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--paper-edge) 30%, transparent) 1px, transparent 1px),
    linear-gradient(color-mix(in oklab, var(--vermilion) 10%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--vermilion) 8%, transparent) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px, 112px 112px, 112px 112px;
  background-position: center top;
  mask-image:
    radial-gradient(ellipse at 50% 18%, #000 0 48%, transparent 82%),
    linear-gradient(to bottom, transparent 0, #000 84px, #000 calc(100% - 80px), transparent);
  mask-composite: intersect;
}

.role-cards-page::before {
  opacity: .16;
}

/* Library · weak paper surface */
.library-page {
  background:
    radial-gradient(circle at 82% 4%, color-mix(in oklab, var(--vermilion) 4%, transparent) 0 11%, transparent 30%),
    linear-gradient(90deg, rgba(255,255,255,.14), transparent 18%, transparent 82%, rgba(255,255,255,.10)),
    var(--paper);
}

.library-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .18;
  background:
    linear-gradient(color-mix(in oklab, var(--paper-edge) 30%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--paper-edge) 22%, transparent) 1px, transparent 1px);
  background-size: 36px 36px, 36px 36px;
  mask-image: linear-gradient(to bottom, transparent 0, #000 88px, #000 calc(100% - 86px), transparent);
}

.library-page > * {
  position: relative;
  z-index: 1;
}

.library-page .library-wrap {
  position: relative;
}

.library-page .library-head.mobile {
  padding-top: calc(var(--s-3) + env(safe-area-inset-top, 0px));
}

.library-page .library-head .greet {
  position: relative;
  display: inline-block;
}

.library-page .library-head .greet::after {
  content: "";
  position: absolute;
  left: 0;
  right: -18px;
  bottom: -8px;
  height: 1px;
  background: color-mix(in oklab, var(--vermilion) 46%, transparent);
}

.library-page .lib-tabs {
  background: color-mix(in oklab, var(--paper) 62%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.library-page .project-card {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  border-bottom-color: color-mix(in oklab, var(--paper-edge) 78%, transparent);
}

.library-page .project-card:hover {
  background: color-mix(in oklab, var(--paper-deep) 28%, transparent);
  box-shadow: none;
}

.library-page .drift-action .glyph {
  background: color-mix(in oklab, var(--paper) 78%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* 5.12 · Clear paper grid + toolbar hard stops */
.index-page > .ghost,
.library-page > .ghost,
.role-cards-page > .ghost {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 8px);
  z-index: 80;
}

.index-page > .ghost.tr,
.library-page > .ghost.tr,
.role-cards-page > .ghost.tr {
  right: 8px;
  left: auto;
}

.library-page > .ghost.tl,
.role-cards-page > .ghost.tl {
  left: 8px;
  right: auto;
}

.index-page::before,
.library-page::before {
  opacity: .42;
  background:
    linear-gradient(color-mix(in oklab, var(--paper-edge) 46%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--paper-edge) 42%, transparent) 1px, transparent 1px),
    linear-gradient(color-mix(in oklab, var(--vermilion) 12%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--vermilion) 10%, transparent) 1px, transparent 1px);
  background-size: 30px 30px, 30px 30px, 120px 120px, 120px 120px;
  background-position: center top;
  mask-image: linear-gradient(to bottom, transparent 0, #000 76px, #000 calc(100% - 76px), transparent);
}

.index-page::before {
  opacity: .52;
}

/* Agent page restore: keep new features, revert visual polish overrides */
body.agent-mode {
  background: var(--paper);
}

body.agent-mode .chat-header {
  position: static;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-edge);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

body.agent-mode .chat-input {
  background: color-mix(in oklab, var(--paper) 94%, white);
  border-top: 1px solid color-mix(in oklab, var(--paper-edge) 80%, transparent);
  box-shadow: 0 -12px 28px -24px rgba(28, 26, 22, 0.36);
}

body.agent-mode .chat-input-row {
  min-height: 0;
}

body.agent-mode .chat-input textarea {
  min-height: 56px;
  max-height: 160px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--paper);
  border-color: var(--paper-edge);
  box-shadow: none;
}

body.agent-mode .chat-input textarea:focus {
  border-color: var(--vermilion);
  box-shadow: none;
}

body.agent-mode .chat-promote,
body.agent-mode .role-card-open,
body.agent-mode .chat-input .chat-tool,
body.agent-mode .chat-input .quick-prompt-btn,
body.agent-mode .chat-input .attach-file-btn {
  min-height: initial;
  background: var(--paper);
  border-color: var(--paper-edge);
  box-shadow: none;
}

body.agent-mode .chat-input .chat-tool {
  border-radius: 14px;
}

body.agent-mode .chat-input .quick-prompt-btn,
body.agent-mode .chat-input .attach-file-btn,
body.agent-mode .chat-input button {
  border-radius: 12px;
}

body.agent-mode .chat-input button:not(.chat-tool):not(.quick-prompt-btn):not(.attach-file-btn) {
  min-height: initial;
  box-shadow: none;
}

body.agent-mode .chat-stream {
  gap: var(--s-4);
}

body.agent-mode .bubble {
  border-radius: 18px;
  box-shadow: none;
}

body.agent-mode .bubble.ai {
  border: 0;
  background: var(--paper-deep);
  border-bottom-left-radius: 6px;
}

body.agent-mode .bubble.user {
  background: var(--vermilion-faint);
  border-bottom-right-radius: 6px;
}

body.agent-mode .q-card,
body.agent-mode .chapter-bubble {
  border-radius: 18px;
  background: var(--paper);
  border-color: var(--paper-edge);
}

body.agent-mode .q-card {
  box-shadow: 0 1px 0 var(--paper-edge), 0 14px 40px -28px rgba(28,26,22,0.18);
}

body.agent-mode .chapter-bubble {
  box-shadow: 0 1px 0 var(--paper-edge), 0 18px 50px -32px rgba(28,26,22,0.20);
}

body.agent-mode .q-card .q-input {
  border-radius: 12px;
  background: var(--paper);
  border-color: var(--paper-edge);
  box-shadow: none;
}

body.agent-mode .q-card .q-submit,
body.agent-mode .q-card .q-skip,
body.agent-mode .q-card .q-cancel {
  border-radius: 10px;
  box-shadow: none;
}

body.agent-mode .q-card .q-opt {
  border-radius: 999px;
  background: var(--paper);
}

body.agent-mode .thinking-fold {
  margin: 0 0 10px;
  padding: 0 0 8px;
  border: 0;
  border-bottom: 1px solid color-mix(in oklab, var(--paper-edge) 70%, transparent);
  border-radius: 0;
  background: transparent;
}

body.agent-mode .thinking-fold summary {
  display: revert;
}

body.agent-mode .thinking-fold summary::before {
  content: none;
}

body.agent-mode .quick-prompt-pop,
body.agent-mode .tool-pop {
  background: var(--paper);
  border-color: var(--paper-edge);
  box-shadow: 0 14px 40px -10px rgba(28, 26, 22, 0.18);
}

@media (max-width: 680px) {
  body.agent-mode .q-card,
  body.agent-mode .chapter-bubble {
    border-radius: 18px;
  }

  body.agent-mode > .ghost.tl {
    display: grid !important;
    position: fixed !important;
    top: calc(env(safe-area-inset-top, 0px) + 12px) !important;
    left: 8px !important;
    right: auto !important;
    z-index: 90 !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  body.agent-mode > .ghost-group.tr {
    display: flex !important;
    position: fixed !important;
    top: calc(env(safe-area-inset-top, 0px) + 12px) !important;
    right: 8px !important;
    left: auto !important;
    z-index: 90 !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  body.agent-mode > .ghost-group.tr .ghost {
    display: grid !important;
    position: relative !important;
    inset: auto !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  body.agent-mode .chat-input {
    display: flex !important;
    position: fixed !important;
    left: 50% !important;
    bottom: 0 !important;
    width: 100vw !important;
    transform: translateX(-50%) !important;
    z-index: 50 !important;
  }

  body.agent-mode .chat-tools {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    min-height: 36px;
    overflow-x: auto;
  }

  body.agent-mode .chat-input-row {
    display: flex !important;
  }
}