/* V3 /start/：工作交接卡優先的產品入口。
 * 只用本機字體與既有 site.css token；沒有外部資源、漸層或大依賴。
 */

.v3-page .site-header .wrap { max-width: 72rem; }
.v3-page .brand-mark { color: var(--brass); }

.v3-hero {
  padding: 4.6rem 0 4.2rem;
  border-bottom: 1px solid var(--rule);
}
.v3-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(18rem, .88fr);
  gap: 3.8rem;
  align-items: start;
}
.v3-kicker {
  margin: 0 0 1.35rem;
  font-family: var(--font-mono);
  color: var(--brass-2);
  font-size: .72rem;
  letter-spacing: .16em;
}
.v3-hero h1 {
  max-width: 12.5em;
  margin: 0 0 1.35rem;
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5.4vw, 4.45rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.03em;
  text-wrap: balance;
}
.v3-hero-lede {
  max-width: 35rem;
  margin: 0 0 1.8rem;
  color: var(--ink-2);
  font-size: 1.08rem;
  line-height: 1.9;
}
.v3-hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.v3-hero-actions .btn { min-height: 3.25rem; }
.v3-inline-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.8rem;
  color: var(--ink-2);
  border-bottom: 1px solid var(--brass);
}
.v3-inline-link:hover { color: var(--brass-2); }
.v3-hero-note {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  color: var(--ink-3);
  font-size: .84rem;
  line-height: 1.75;
}

.v3-receipt {
  background: var(--card);
  border: 1px solid var(--rule-2);
  border-top: 3px solid var(--brass);
  padding: 1.45rem 1.45rem 1.35rem;
}
.v3-receipt-kicker {
  margin: 0 0 .45rem;
  color: var(--brass-2);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
}
.v3-receipt h2 {
  margin: 0 0 1.1rem;
  font-family: var(--font-serif);
  font-size: 1.55rem;
  line-height: 1.45;
  font-weight: 600;
}
.v3-receipt-list { list-style: none; margin: 0; padding: 0; }
.v3-receipt-list li {
  display: grid;
  grid-template-columns: 1.4rem minmax(0, 1fr);
  gap: .7rem;
  align-items: start;
  padding: .7rem 0;
  border-top: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: .93rem;
  line-height: 1.65;
}
.v3-receipt-list li::before {
  content: "✓";
  color: var(--brass-2);
  font-family: var(--font-mono);
  font-weight: 700;
}
.v3-receipt-foot {
  margin: 1rem 0 0;
  padding-top: .85rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: .8rem;
  line-height: 1.7;
}

.v3-progress-section { padding: 1.35rem 0 1.5rem; border-bottom: 1px solid var(--rule); }
.v3-progress-label {
  margin: 0 0 .9rem;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .13em;
}
.v3-progress-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .55rem;
}
.v3-progress-step {
  display: flex;
  gap: .62rem;
  align-items: center;
  min-width: 0;
  padding: .65rem .2rem .65rem 0;
  border-top: 2px solid var(--rule-2);
  color: var(--ink-3);
  font-size: .83rem;
  line-height: 1.45;
}
.v3-progress-step .num {
  flex: none;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: .69rem;
}
.v3-progress-step.is-active { border-top-color: var(--brass); color: var(--ink); }
.v3-progress-step.is-active .num { color: var(--brass-2); }
.v3-progress-step.is-done { border-top-color: var(--ink-2); color: var(--ink-2); }

.v3-work-section { padding: 4.4rem 0 4.8rem; background: var(--paper-2); border-bottom: 1px solid var(--rule); }
.v3-section-intro { max-width: 40rem; margin-bottom: 2rem; }
.v3-section-kicker {
  margin: 0 0 .65rem;
  color: var(--brass-2);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
}
.v3-section-intro h2 {
  margin: 0 0 .8rem;
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  font-weight: 600;
  line-height: 1.3;
}
.v3-section-intro p { margin: 0; max-width: 38rem; color: var(--ink-2); }
.v3-work-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(17rem, .84fr);
  gap: 2rem;
  align-items: start;
}
.v3-form-panel {
  background: var(--card);
  border: 1px solid var(--rule-2);
  padding: 1.25rem 1.35rem 1.35rem;
}
.v3-form-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--rule);
}
.v3-form-panel-head strong { font-family: var(--font-serif); font-size: 1.15rem; }
.v3-form-count { color: var(--ink-3); font-family: var(--font-mono); font-size: .7rem; }
.v3-form-step { display: none; padding-top: 1.35rem; }
.v3-form-step.is-active { display: block; }
.v3-form-step h3 { margin: 0 0 .45rem; font-family: var(--font-serif); font-size: 1.45rem; font-weight: 600; line-height: 1.45; }
.v3-form-step .prompt { margin: 0 0 1rem; color: var(--ink-2); font-size: .92rem; }
.v3-field-label { display: block; margin: 0 0 .45rem; font-size: .87rem; font-weight: 700; }
.v3-field-label small { display: block; margin-top: .25rem; color: var(--ink-3); font-size: .8rem; font-weight: 400; }
.v3-input, .v3-textarea {
  display: block;
  width: 100%;
  border: 1px solid var(--rule-2);
  border-radius: 3px;
  padding: .82rem .85rem;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  line-height: 1.6;
}
.v3-input:focus, .v3-textarea:focus { border-color: var(--brass); outline: 2px solid var(--brass-soft); outline-offset: 1px; }
.v3-textarea { min-height: 7.25rem; resize: vertical; }
.v3-input[aria-invalid="true"], .v3-textarea[aria-invalid="true"] { border-color: var(--warn, #9b2922); }
.v3-chip-label { display: block; margin: 1rem 0 .5rem; color: var(--ink-3); font-size: .78rem; }
.v3-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.v3-chip {
  appearance: none;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  padding: .42rem .7rem;
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  font-size: .82rem;
  cursor: pointer;
}
.v3-chip:hover, .v3-chip:focus-visible { border-color: var(--brass); color: var(--ink); }
.v3-form-actions { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; margin-top: 1.35rem; }
.v3-form-actions .btn { min-height: 2.8rem; }
.v3-form-status { min-height: 1.5em; margin: .8rem 0 0; color: var(--brass-2); font-size: .82rem; }
.v3-side-note {
  border-left: 2px solid var(--brass);
  padding: .15rem 0 .15rem 1.1rem;
  color: var(--ink-2);
  font-size: .9rem;
  line-height: 1.8;
}
.v3-side-note h3 { margin: 0 0 .55rem; color: var(--ink); font-family: var(--font-serif); font-size: 1.25rem; font-weight: 600; }
.v3-side-note p { margin: 0 0 1rem; }
.v3-side-note ul { margin: 0; padding-left: 1.2rem; }
.v3-side-note li { margin: .35rem 0; }
.v3-privacy-note {
  margin-top: 1.5rem;
  border-top: 1px solid var(--rule-2);
  padding-top: 1rem;
  color: var(--ink-3);
  font-size: .8rem;
  line-height: 1.75;
}

.v3-output { display: none; margin-top: 2.2rem; }
.v3-output.is-visible { display: block; }
.v3-output-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.v3-output-heading h3 { margin: 0; font-family: var(--font-serif); font-size: 1.7rem; font-weight: 600; }
.v3-output-heading p { max-width: 30rem; margin: 0; color: var(--ink-2); font-size: .88rem; }
.v3-card-sheet {
  max-width: 52rem;
  background: var(--paper);
  border: 1px solid var(--rule-2);
  border-left: 4px solid var(--brass);
  padding: 1.45rem 1.45rem 1.2rem;
}
.v3-card-sheet-head { display: flex; justify-content: space-between; gap: 1rem; align-items: start; margin-bottom: 1rem; }
.v3-card-sheet h4 { margin: 0; font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; line-height: 1.35; }
.v3-card-stamp { color: var(--brass-2); font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em; white-space: nowrap; }
.v3-card-rows { margin: 0; }
.v3-card-row { display: grid; grid-template-columns: minmax(9rem, .33fr) minmax(0, 1fr); gap: 1rem; padding: .8rem 0; border-top: 1px solid var(--rule); }
.v3-card-row dt { color: var(--ink-3); font-size: .78rem; font-weight: 700; }
.v3-card-row dd { margin: 0; color: var(--ink); white-space: pre-wrap; line-height: 1.7; }
.v3-card-foot { margin: 1rem 0 0; padding-top: .85rem; border-top: 1px solid var(--rule); color: var(--ink-3); font-size: .78rem; line-height: 1.7; }
.v3-card-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.v3-card-actions .btn { min-height: 2.7rem; }
.v3-completion {
  display: none;
  margin-top: 2rem;
  border-top: 1px solid var(--rule-2);
  padding-top: 2rem;
}
.v3-completion.is-visible { display: block; }
.v3-completion h3 { margin: 0 0 .65rem; font-family: var(--font-serif); font-size: 1.8rem; font-weight: 600; }
.v3-completion-lede { max-width: 42rem; margin: 0 0 1.2rem; color: var(--ink-2); }
.v3-completion-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem; margin-top: 1.25rem; }
.v3-next-step { border-top: 2px solid var(--rule-2); padding: .85rem .15rem 0; }
.v3-next-step.primary { border-top-color: var(--brass); }
.v3-next-step strong { display: block; margin-bottom: .35rem; font-family: var(--font-serif); font-size: 1.05rem; }
.v3-next-step p { margin: 0 0 .7rem; color: var(--ink-2); font-size: .84rem; line-height: 1.7; }
.v3-next-step a { font-size: .86rem; }
.v3-tracks { margin-top: 1.8rem; padding-top: 1.1rem; border-top: 1px solid var(--rule); }
.v3-tracks h4 { margin: 0 0 .35rem; font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; }
.v3-tracks p { margin: 0; color: var(--ink-2); font-size: .86rem; }
.v3-track-list { display: flex; flex-wrap: wrap; gap: .55rem; margin: .8rem 0 0; padding: 0; list-style: none; }
.v3-track-list li { border: 1px solid var(--rule-2); padding: .45rem .7rem; color: var(--ink-2); font-size: .8rem; }

.v3-optional-section { padding: 3.6rem 0 4rem; border-bottom: 1px solid var(--rule); }
.v3-optional-intro { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1.2rem; }
.v3-optional-intro h2 { margin: 0; font-family: var(--font-serif); font-size: 1.75rem; font-weight: 600; }
.v3-optional-intro p { max-width: 32rem; margin: 0; color: var(--ink-2); font-size: .86rem; }
.v3-pack { border-top: 1px solid var(--rule-2); padding: 1rem 0; }
.v3-pack summary { cursor: pointer; color: var(--ink); font-family: var(--font-serif); font-size: 1.12rem; font-weight: 600; }
.v3-pack summary::marker { color: var(--brass-2); }
.v3-pack-body { max-width: 54rem; padding: 1rem 0 .2rem 1.2rem; border-left: 2px solid var(--brass); }
.v3-pack-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem 1rem; }
.v3-pack-field label { display: block; margin-bottom: .3rem; color: var(--ink-3); font-size: .78rem; font-weight: 700; }
.v3-pack-field input, .v3-pack-field textarea { width: 100%; border: 1px solid var(--rule); border-radius: 2px; padding: .6rem .65rem; background: var(--card); color: var(--ink); font: inherit; font-size: .86rem; }
.v3-pack-field textarea { min-height: 4.6rem; resize: vertical; }
.v3-pack-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: .9rem; }
.v3-pack-result { display: none; margin: 1rem 0 0; padding: .85rem; background: var(--paper-2); border: 1px solid var(--rule); white-space: pre-wrap; font-family: var(--font-mono); font-size: .78rem; line-height: 1.7; }
.v3-pack-result.is-visible { display: block; }

.v3-library { padding: 3.6rem 0 4rem; background: var(--paper-2); }
.v3-library-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16rem, .7fr); gap: 2.5rem; align-items: start; }
.v3-library h2 { margin: 0 0 .65rem; font-family: var(--font-serif); font-size: 1.75rem; font-weight: 600; }
.v3-library p { margin: 0 0 1rem; max-width: 40rem; color: var(--ink-2); font-size: .9rem; }
.v3-library-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem 1rem; }
.v3-library-links a { padding: .75rem 0; border-top: 1px solid var(--rule-2); color: var(--ink-2); font-size: .88rem; }
.v3-library-links a:hover { color: var(--brass-2); }
.v3-video-note { border-left: 2px solid var(--rule-2); padding-left: 1rem; color: var(--ink-3); font-size: .82rem; line-height: 1.8; }
.v3-video-note strong { display: block; margin-bottom: .35rem; color: var(--ink-2); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .08em; }

.v3-page .site-footer { border-top: 0; }
.v3-page .cta-bar { display: none; }
.v3-page .site-footer .colophon { color: var(--ink-3); }

@media (max-width: 60rem) {
  .v3-hero-grid, .v3-work-grid, .v3-library-grid { grid-template-columns: 1fr; gap: 2rem; }
  .v3-hero h1 { max-width: 16em; }
  .v3-receipt { max-width: 38rem; }
  .v3-completion-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 42rem) {
  .v3-hero { padding: 3.35rem 0 3.2rem; }
  .v3-hero h1 { font-size: clamp(2.05rem, 10vw, 3rem); }
  .v3-progress-rail { grid-template-columns: 1fr; gap: 0; }
  .v3-progress-step { border-top-width: 1px; }
  .v3-progress-step.is-active { border-left: 3px solid var(--brass); padding-left: .65rem; }
  .v3-progress-step.is-done { border-left: 3px solid var(--ink-2); padding-left: .65rem; }
  .v3-card-row { grid-template-columns: 1fr; gap: .2rem; }
  .v3-completion-grid, .v3-pack-grid, .v3-library-links { grid-template-columns: 1fr; }
  .v3-form-panel { padding: 1rem; }
  .v3-pack-body { padding-left: .9rem; }
  .v3-page .site-footer { padding-bottom: 3rem; }
}

@media print {
  .v3-page > header, .v3-page > footer, .v3-page .v3-hero, .v3-page .v3-progress-section,
  .v3-page .v3-work-section > .wrap > :not(.v3-output), .v3-page .v3-optional-section,
  .v3-page .v3-library, .v3-card-actions { display: none !important; }
  .v3-page .v3-work-section { padding: 0; background: #fff; border: 0; }
  .v3-page .v3-output, .v3-page .v3-output.is-visible { display: block; margin: 0; }
  .v3-page .v3-card-sheet { max-width: none; border: 1px solid #222; }
}