:root {
  --ink: #172026;
  --muted: #5d6870;
  --line: #dbe2e4;
  --paper: #f7f8f5;
  --white: #ffffff;
  --teal: #0f7a78;
  --teal-dark: #075250;
  --gold: #b48228;
  --brick: #a64f38;
  --charcoal: #20282d;
  --shadow: 0 24px 70px rgba(22, 32, 38, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", "Microsoft JhengHei", "Noto Sans TC", Arial, sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 5vw;
  background: rgba(247, 248, 245, 0.92);
  border-bottom: 1px solid rgba(219, 226, 228, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--teal-dark);
  color: var(--white);
  font-size: 14px;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--teal-dark);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 248, 245, 0.96) 0%, rgba(247, 248, 245, 0.82) 34%, rgba(247, 248, 245, 0.3) 72%),
    linear-gradient(0deg, rgba(247, 248, 245, 1) 0%, rgba(247, 248, 245, 0) 22%);
}

.hero-content {
  position: relative;
  width: min(760px, 90vw);
  padding: 96px 5vw 128px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 720px;
  color: var(--ink);
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 650px;
  margin: 24px 0 0;
  color: #344148;
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}

.primary-action {
  color: var(--white);
  background: var(--teal-dark);
}

.secondary-action {
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 122, 120, 0.24);
}

.section {
  padding: 92px 5vw;
}

.section-tint {
  background: #edf3f1;
  border-block: 1px solid var(--line);
}

.section-dark {
  color: var(--white);
  background: var(--charcoal);
}

.section-dark .eyebrow,
.section-dark .section-heading p {
  color: #d3e5e0;
}

.section-heading {
  max-width: 920px;
  margin-bottom: 42px;
}

.section-heading p:last-child {
  max-width: 820px;
  color: var(--muted);
  font-size: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.metric-card,
.pipeline-step,
.staff-steps li,
.handoff-panel,
.risk-grid article,
.calculator,
.cost-table,
.table-wrap {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-card {
  padding: 26px;
  border-top: 5px solid var(--brick);
}

.metric-card.accent-teal {
  border-top-color: var(--teal);
}

.metric-card.accent-gold {
  border-top-color: var(--gold);
}

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

.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1;
  letter-spacing: 0;
}

.metric-card p {
  margin: 16px 0 0;
  color: var(--muted);
}

.insight-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.insight-band > div {
  padding: 28px;
  background: #fdfdfb;
}

.insight-band p {
  margin: 0;
  color: var(--muted);
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.pipeline-step {
  position: relative;
  min-height: 220px;
  padding: 24px;
}

.pipeline-step span {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--gold);
  font-weight: 900;
  font-size: 15px;
}

.pipeline-step p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.workflow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 24px;
  align-items: start;
}

.staff-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.staff-steps li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 22px;
  box-shadow: none;
}

.step-number {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  color: var(--white);
  background: var(--teal-dark);
  font-weight: 900;
  font-size: 14px;
}

.staff-steps p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
}

.staff-steps strong {
  display: block;
  color: #344148;
  font-size: 14px;
  line-height: 1.5;
}

.handoff-panel {
  position: sticky;
  top: 92px;
  padding: 26px;
  border-top: 5px solid var(--gold);
  box-shadow: none;
}

.handoff-panel ul {
  display: grid;
  gap: 12px;
  padding-left: 20px;
  margin: 18px 0 0;
  color: var(--muted);
}

.handoff-note {
  margin-top: 24px;
  padding: 18px;
  border-radius: 8px;
  background: #eef5f2;
  border: 1px solid #cbded8;
}

.handoff-note span {
  display: block;
  color: var(--teal-dark);
  font-weight: 900;
  font-size: 14px;
}

.handoff-note p {
  margin: 8px 0 0;
  color: #344148;
  font-weight: 700;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: 38px;
  align-items: start;
}

.two-column > div:first-child p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.table-wrap,
.cost-table {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

th,
td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--teal-dark);
  background: #f2f6f4;
  font-size: 14px;
}

td {
  color: #344148;
}

tr:last-child td {
  border-bottom: 0;
}

.cost-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

.calculator {
  padding: 26px;
  color: var(--ink);
}

.field-row {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

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

input {
  width: 100%;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  font: inherit;
}

input:focus,
.mode-button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(15, 122, 120, 0.28);
  outline-offset: 2px;
}

.mode-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 18px 0;
}

.mode-button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.mode-button.active {
  color: var(--white);
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.result-panel {
  padding: 20px;
  border-radius: 8px;
  background: #eef5f2;
  border: 1px solid #cbded8;
}

.result-panel span {
  display: block;
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
}

.result-panel strong {
  display: block;
  margin-top: 8px;
  font-size: 38px;
  line-height: 1.1;
}

.result-panel p {
  margin: 8px 0 0;
  color: var(--muted);
}

.cost-bars {
  display: grid;
  gap: 18px;
  align-content: center;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 90px;
  gap: 14px;
  align-items: center;
}

.bar-row span {
  color: #d8e4e1;
  font-weight: 700;
}

.bar-track {
  height: 18px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
}

.bar-fill.stamp {
  background: var(--gold);
}

.bar-fill.api {
  background: #58b6ae;
}

.bar-fill.buffer {
  background: var(--brick);
}

.bar-row strong {
  font-size: 14px;
  text-align: right;
}

.cost-table {
  margin-top: 24px;
  box-shadow: none;
}

.time-forecast {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  margin-top: 24px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.time-summary h3 {
  color: var(--white);
  font-size: 28px;
}

.time-summary p:last-child {
  margin-bottom: 0;
  color: #d3e5e0;
}

.time-grid {
  display: grid;
  gap: 14px;
}

.time-grid article {
  padding: 18px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
}

.time-grid span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.time-grid strong {
  display: block;
  margin-top: 6px;
  color: var(--teal-dark);
  font-size: 32px;
  line-height: 1.1;
}

.time-grid p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.time-table table {
  min-width: 860px;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.risk-grid article {
  padding: 24px;
  box-shadow: none;
}

.risk-grid p {
  margin: 0;
  color: var(--muted);
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.roadmap li {
  position: relative;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.roadmap span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--brick);
  font-weight: 800;
}

.roadmap p {
  margin: 0;
  color: var(--muted);
}

.source-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.source-list a {
  min-height: 74px;
  display: flex;
  align-items: center;
  padding: 16px;
  color: var(--teal-dark);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}

.source-list a:hover {
  border-color: rgba(15, 122, 120, 0.45);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 5vw;
  color: #d8e4e1;
  background: #11181c;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .metric-grid,
  .pipeline,
  .staff-steps,
  .risk-grid,
  .roadmap,
  .source-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-column,
  .workflow-layout,
  .time-forecast,
  .cost-layout {
    grid-template-columns: 1fr;
  }

  .handoff-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(247, 248, 245, 0.96) 0%, rgba(247, 248, 245, 0.82) 55%, rgba(247, 248, 245, 0.72) 100%);
  }

  .hero-content {
    padding-top: 68px;
    padding-bottom: 96px;
  }

  .hero-copy {
    font-size: 17px;
  }

  .section {
    padding: 64px 5vw;
  }

  .metric-grid,
  .insight-band,
  .pipeline,
  .staff-steps,
  .risk-grid,
  .roadmap,
  .source-list {
    grid-template-columns: 1fr;
  }

  .staff-steps li {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .bar-row strong {
    text-align: left;
  }

  .footer {
    flex-direction: column;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .calculator {
    display: none;
  }

  .hero {
    min-height: 460px;
  }

  .section {
    break-inside: avoid;
    padding-block: 46px;
  }
}