:root {
  --paper: #f7f3ea;
  --paper-soft: #fbf8f1;
  --ink: #183044;
  --muted: #5d6d7b;
  --blue: #1769c2;
  --blue-dark: #0c4f99;
  --blue-soft: #e7f0fb;
  --gold: #f5b942;
  --gold-soft: #fff2cf;
  --card: #ffffff;
  --line: #dfe7ee;
  --shadow: 0 18px 45px rgba(24, 48, 68, 0.11);
  --radius: 18px;
  --radius-small: 12px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(245, 185, 66, 0.2), transparent 32rem),
    linear-gradient(180deg, var(--paper-soft), var(--paper));
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(245, 185, 66, 0.95);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1rem;
  background: rgba(247, 243, 234, 0.88);
  backdrop-filter: blur(14px);
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 8px 18px rgba(23, 105, 194, 0.24);
}

.nav-links {
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-links a {
  padding: 0.5rem 0.65rem;
  border-radius: 999px;
}

.nav-links a:hover {
  color: var(--blue-dark);
  background: var(--blue-soft);
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4.5rem 1rem;
}

.hero {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  padding-top: 3rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--blue-dark);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.45rem, 11vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.75rem, 6vw, 3rem);
  line-height: 1.15;
}

h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
  line-height: 1.3;
}

.hero-subtitle {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 22px rgba(23, 105, 194, 0.24);
}

.button-primary:hover {
  background: var(--blue-dark);
}

.button-secondary {
  color: var(--blue-dark);
  background: #fff;
  border-color: var(--line);
}

.button-secondary:hover {
  border-color: rgba(23, 105, 194, 0.35);
  box-shadow: 0 10px 20px rgba(24, 48, 68, 0.08);
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.trust-strip span {
  padding: 0.4rem 0.7rem;
  color: var(--blue-dark);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
}

.phone-wrap {
  position: relative;
  display: grid;
  place-items: center;
}

.phone-wrap::before {
  position: absolute;
  width: min(17rem, 70vw);
  height: min(17rem, 70vw);
  content: "";
  background: var(--gold);
  border-radius: 32% 68% 54% 46%;
  opacity: 0.26;
  transform: rotate(-9deg);
}

.phone-mockup {
  position: relative;
  width: min(20rem, 88vw);
  padding: 0.9rem;
  background: #17384f;
  border: 9px solid #112b40;
  border-radius: 2.2rem;
  box-shadow: var(--shadow);
}

.phone-top {
  display: flex;
  justify-content: center;
  padding: 0.1rem 0 0.75rem;
}

.phone-top span {
  width: 4.5rem;
  height: 0.35rem;
  background: rgba(255, 255, 255, 0.45);
  border-radius: 999px;
}

.mock-brand,
.mock-card,
.mock-tile {
  background: #fff;
  border-radius: var(--radius-small);
}

.mock-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
}

.mock-brand p,
.mock-card p,
.example-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.mock-brand strong {
  font-size: 1.4rem;
  line-height: 1.1;
}

.status-pill {
  padding: 0.35rem 0.55rem;
  color: #805300;
  background: var(--gold-soft);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
}

.mock-card {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.75rem;
  padding: 0.9rem;
}

.mock-icon {
  display: grid;
  flex: 0 0 2.1rem;
  width: 2.1rem;
  height: 2.1rem;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 0.7rem;
  font-weight: 900;
}

.mock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.mock-tile {
  padding: 0.8rem;
}

.mock-tile span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.mock-tile strong {
  display: block;
  margin-top: 0.35rem;
  line-height: 1.25;
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 1.5rem;
}

.card-grid,
.plans-grid,
.example-grid,
.maintenance-grid {
  display: grid;
  gap: 1rem;
}

.info-card,
.solution-card,
.plan-card,
.example-card,
.maintenance-grid article,
.faq-item {
  background: var(--card);
  border: 1px solid rgba(223, 231, 238, 0.9);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(24, 48, 68, 0.07);
}

.info-card {
  min-height: 9rem;
  padding: 1.2rem;
}

.card-dot {
  display: block;
  width: 2.15rem;
  height: 0.5rem;
  margin-bottom: 1.3rem;
  background: var(--gold);
  border-radius: 999px;
}

.solution-list {
  display: grid;
  gap: 1rem;
}

.solution-card {
  display: grid;
  gap: 0.4rem;
  padding: 1.25rem;
}

.solution-card span {
  width: fit-content;
  padding: 0.22rem 0.55rem;
  color: var(--blue-dark);
  background: var(--blue-soft);
  border-radius: 999px;
  font-weight: 900;
}

.solution-card p,
.fit,
.early-note,
.faq-answer,
.site-footer,
.final-cta p,
.payment-panel p,
.maintenance-grid span {
  color: var(--muted);
}

.plans-grid {
  align-items: stretch;
}

.plan-card {
  position: relative;
  padding: 1.35rem;
}

.plan-card.featured {
  border-color: rgba(23, 105, 194, 0.38);
  box-shadow: 0 20px 44px rgba(23, 105, 194, 0.15);
}

.plan-card.featured::before {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.55rem;
  content: "熱門";
  color: #7b4d00;
  background: var(--gold-soft);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 900;
}

.plan-label {
  margin-bottom: 0.4rem;
  color: var(--blue-dark);
  font-weight: 900;
}

.price {
  margin-bottom: 0.4rem;
  color: var(--blue-dark);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
}

.fit {
  min-height: 3.3rem;
}

ul {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

li {
  position: relative;
  padding-left: 1.5rem;
}

li + li {
  margin-top: 0.5rem;
}

ul li::before {
  position: absolute;
  left: 0;
  color: var(--blue);
  content: "✓";
  font-weight: 900;
}

.early-note {
  margin: 1.2rem 0 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px dashed rgba(23, 105, 194, 0.35);
  border-radius: var(--radius-small);
}

.example-card {
  padding: 1.2rem;
}

.mini-board {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.mini-board span {
  display: block;
  padding: 0.75rem;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  font-weight: 700;
}

.process-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(24, 48, 68, 0.06);
  font-weight: 800;
}

.process-list li::before {
  display: none;
}

.process-list span {
  display: grid;
  flex: 0 0 2.2rem;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 0.7rem;
  font-weight: 900;
}

.payment-panel,
.final-cta {
  padding: 1.35rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  box-shadow: var(--shadow);
}

.payment-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.maintenance-grid article {
  padding: 1.15rem;
}

.maintenance-grid p {
  margin-bottom: 0.4rem;
  color: var(--blue-dark);
  font-size: 1.4rem;
  font-weight: 900;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  color: var(--ink);
  background: #fff;
  border: 0;
  font: inherit;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.faq-question:hover {
  background: var(--blue-soft);
}

.faq-question span {
  display: grid;
  flex: 0 0 1.8rem;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  color: var(--blue-dark);
  background: var(--gold-soft);
  border-radius: 999px;
  font-weight: 900;
}

.faq-answer {
  display: none;
  padding: 0 1rem 1rem;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.faq-item.is-open .faq-question span {
  background: var(--blue);
  color: #fff;
}

.final-cta {
  text-align: center;
}

.final-cta .hero-actions {
  justify-content: center;
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
  border-top: 1px solid rgba(223, 231, 238, 0.9);
}

.site-footer p {
  margin-bottom: 0.25rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media (min-width: 700px) {
  .section {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
  }

  .card-grid.four,
  .example-grid,
  .maintenance-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-list {
    grid-template-columns: repeat(6, 1fr);
  }

  .solution-card {
    grid-column: span 3;
  }

  .solution-card:nth-child(5) {
    grid-column: 2 / span 4;
  }

  .payment-panel {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
    align-items: center;
  }

  .payment-actions {
    justify-content: flex-end;
    margin-top: 0;
  }
}

@media (min-width: 920px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
    min-height: calc(100vh - 4.2rem);
  }

  .plans-grid,
  .example-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-grid.four,
  .maintenance-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .process-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .phone-mockup {
    transform: rotate(2deg);
  }
}

@media (max-width: 420px) {
  .nav-links {
    gap: 0;
    font-size: 0.88rem;
  }

  .nav-links a {
    padding: 0.45rem 0.45rem;
  }

  .button {
    width: 100%;
  }

  .mock-grid {
    grid-template-columns: 1fr;
  }
}