:root {
  --bg: #f4f7fa;
  --surface: #ffffff;
  --surface-strong: #eaf2fb;
  --line: #d6e0ea;
  --text: #14283f;
  --text-dim: #53677c;
  --accent: #2f78c5;
  --accent-strong: #1c5c9f;
  --accent-soft: #e7f1fc;
  --shadow: 0 1.25rem 3rem rgba(24, 59, 96, .09);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: #bcd8f2; color: var(--text); }
img { display: block; max-width: 100%; height: auto; }
a {
  color: var(--accent-strong);
  text-decoration-thickness: .08em;
  text-underline-offset: .16em;
  transition: color .18s ease-out;
}
a:hover { color: #124779; }
a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid #8fc2ed;
  outline-offset: 3px;
}
a, button { touch-action: manipulation; }
h1, h2, h3 { line-height: 1.35; text-wrap: balance; }
h1 { margin: 0; font-size: clamp(2.15rem, 6vw, 3.85rem); letter-spacing: -.03em; }
h2 { margin: 0; font-size: clamp(1.45rem, 4vw, 2rem); letter-spacing: -.015em; }
h3 { margin: 0; font-size: 1.15rem; }
p { text-wrap: pretty; }
code {
  color: #1d4f7f;
  background: #edf3f8;
  border: 1px solid #d4e2ee;
  border-radius: .35rem;
  padding: .08em .35em;
  overflow-wrap: anywhere;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: .65rem .9rem;
  background: var(--text);
  color: #fff;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.wrap { width: calc(100% - 2.5rem); max-width: 70rem; margin-inline: auto; }
.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .97);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 750;
  letter-spacing: .01em;
  min-width: 0;
}
.brand img { width: 2.7rem; height: 2.7rem; border-radius: .65rem; }
.brand span { overflow-wrap: anywhere; }
.nav {
  display: flex;
  gap: 1rem;
  margin-left: auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: .92rem;
}
.nav a { padding-block: .35rem; text-decoration: underline; text-decoration-color: transparent; transition: color .18s ease-out, text-decoration-color .18s ease-out; }
.nav a:hover { text-decoration: underline; text-decoration-thickness: .08em; }
.nav a:hover { text-decoration-color: currentColor; }

.hero {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3.5rem, 8vw, 6rem);
  background: linear-gradient(145deg, #eef6ff 0%, #e4effb 58%, #edf5fc 100%);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(22rem, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.hero-grid > * { min-width: 0; }
.hero h1 { max-width: 10.5em; }
.hero-lede {
  max-width: 36rem;
  margin: 1.4rem 0 0;
  color: var(--text-dim);
  font-size: clamp(1.05rem, 2.3vw, 1.25rem);
  overflow-wrap: anywhere;
}
.brand-origin {
  max-width: 36rem;
  margin: 1rem 0 0;
  color: var(--accent-strong);
  font-size: .95rem;
  font-weight: 750;
}
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}
.hero-facts li {
  padding: .38rem .72rem;
  border: 1px solid #bdd3e7;
  border-radius: 999px;
  background: rgba(255, 255, 255, .68);
  color: #294d70;
  font-size: .88rem;
  font-weight: 700;
}
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 2rem; }
.btn {
  display: inline-block;
  padding: .65em 1.1em;
  border: 1px solid var(--accent);
  border-radius: .65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  transition: transform .18s ease-out, background-color .18s ease-out, border-color .18s ease-out, box-shadow .18s ease-out;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 .45rem 1rem rgba(24, 59, 96, .12); }
.btn:active { transform: translateY(0) scale(.985); box-shadow: none; }
.btn.primary { background: var(--accent-strong); color: #fff; }
.btn.primary:hover { background: #124779; color: #fff; }
.btn.secondary { border-color: #a9c0d7; background: var(--surface); }
.hero-art-wrap {
  width: 100%;
  min-width: 0;
  margin: 0;
  padding: .7rem;
  background: rgba(255, 255, 255, .72);
  border: 1px solid #c9dcec;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: hero-arrive .7s cubic-bezier(.2, .8, .2, 1) both;
}
.hero-art { width: 100%; border-radius: .65rem; filter: saturate(1.08) contrast(1.03); }
.hero-art-wrap figcaption {
  margin: .65rem .35rem .1rem;
  color: var(--text-dim);
  font-size: .9rem;
}
@keyframes hero-arrive {
  from { opacity: 0; transform: translateY(.75rem); }
  to { opacity: 1; transform: translateY(0); }
}

.app-preview-section { background: #fff; }
.preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, .95fr);
  gap: clamp(3rem, 7vw, 6rem);
  align-items: center;
}
.preview-copy { max-width: 31rem; }
.preview-copy h2 {
  max-width: 14ch;
  font-size: clamp(1.75rem, 3.5vw, 2.65rem);
}
.preview-copy .section-lede {
  max-width: 31rem;
  font-size: clamp(1.05rem, 1.7vw, 1.18rem);
  line-height: 1.85;
}
.guide-screen {
  min-width: 0;
  margin: 0;
  padding: .6rem;
  border-radius: 1rem;
  background: #102030;
  color: #eef6ff;
  box-shadow: var(--shadow);
}
.screen-crop {
  aspect-ratio: 4 / 5;
  border-radius: .7rem;
  background: #000;
  overflow: hidden;
}
.screen-crop img { width: 100%; height: 100%; object-fit: cover; }
.guide-screen figcaption { padding: .8rem .45rem .35rem; }
.guide-screen figcaption { color: #aec4d9; font-size: .85rem; line-height: 1.55; }
.store-shot { min-width: 0; margin: 0; }
.store-shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1.5rem;
  box-shadow: 0 1.5rem 4rem rgba(20, 51, 79, .14);
}
.workflow-store-shot { width: min(100%, 24rem); justify-self: center; }

.section { padding: clamp(3.5rem, 7vw, 5.5rem) 0; border-bottom: 1px solid var(--line); }
.section:nth-of-type(even) { background: rgba(255, 255, 255, .42); }
.section-lede { margin: .9rem 0 0; color: var(--text-dim); }
.measure { max-width: 65ch; }
.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(20rem, 1.1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: stretch;
  margin-top: 2rem;
}
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.feature-cards { grid-template-columns: 1fr; margin-top: 0; }
.card {
  padding: 1.45rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: .9rem;
}
.feature-card {
  display: grid;
  grid-template-columns: 2.55rem minmax(0, 1fr);
  column-gap: 1rem;
  align-content: center;
}
.feature-card .feature-icon { grid-row: span 2; }
.feature-icon,
.mode-icon,
.demo-arrow {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}
.feature-icon {
  width: 2.55rem;
  height: 2.55rem;
  padding: .58rem;
  border-radius: .75rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
}
.card p { margin: .65rem 0 0; color: var(--text-dim); }
.feature-card p { margin-top: .25rem; }
.transform-demo {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .8rem;
  align-items: center;
  margin: 0;
  padding: clamp(1.3rem, 3vw, 2rem);
  border-radius: 1rem;
  background: #10273f;
  color: #eef6ff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.transform-demo::after {
  content: "";
  position: absolute;
  right: -5rem;
  bottom: -6rem;
  width: 13rem;
  height: 13rem;
  border-radius: 50%;
  background: rgba(69, 143, 220, .18);
}
.transform-demo figcaption {
  grid-column: 1 / -1;
  font-size: 1.2rem;
  font-weight: 800;
}
.speech-sample,
.text-sample {
  position: relative;
  z-index: 1;
  align-self: stretch;
  padding: 1rem;
  border-radius: .8rem;
  background: rgba(255, 255, 255, .08);
}
.speech-sample span,
.text-sample span { color: #a9caeb; font-size: .78rem; font-weight: 750; }
.speech-sample p { margin: .45rem 0 0; color: #d9e8f7; }
.text-sample ol { margin: .45rem 0 0; padding-left: 1.35rem; }
.text-sample li + li { margin-top: .25rem; }
.demo-arrow { width: 1.6rem; height: 1.6rem; color: #70b5f4; }
.demo-note { position: relative; z-index: 1; grid-column: 1 / -1; margin: .2rem 0 0; color: #9eb9d3; font-size: .78rem; }
.trust-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.trust-strip article { display: flex; gap: .9rem; align-items: flex-start; }
.trust-strip h3 { font-size: 1rem; }
.trust-strip p { margin: .2rem 0 0; color: var(--text-dim); }
.modes-section { background: #fff; }
.modes-heading { max-width: 46rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.modes-content {
  display: grid;
  grid-template-columns: minmax(17rem, .8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.modes-store-shot { width: min(100%, 22rem); justify-self: center; }
.mode-list { display: grid; gap: .25rem; }
.mode-item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}
.mode-item:first-child { padding-top: 0; }
.mode-item:last-child { padding-bottom: 0; border-bottom: 0; }
.mode-icon { width: 2.5rem; height: 2.5rem; padding: .5rem; color: var(--accent-strong); }
.mode-item p { margin: .2rem 0 0; color: var(--text-dim); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; margin-top: 2rem; counter-reset: step; }
.step {
  position: relative;
  display: grid;
  grid-template-rows: 2.25rem auto;
  gap: .85rem;
  align-items: start;
}
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 1.1rem;
  left: 3rem;
  right: -.5rem;
  height: 1px;
  background: #b8cee3;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}
.step p { margin: .25rem 0 0; color: var(--text-dim); }
.price-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.price { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: .9rem; }
.price h4 { margin: 0; font-size: 1.15rem; line-height: 1.35; }
.price strong { display: block; margin-top: .35rem; font-size: 1.8rem; }
.price p { margin: .6rem 0 0; color: var(--text-dim); }
.pricing-group { margin-top: 1.75rem; }
.pricing-group > h3 { margin-bottom: .75rem; color: var(--accent-strong); }
.pricing-group .price-box { margin-top: 0; }
.pricing-table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: .9rem;
  background: var(--surface);
  -webkit-overflow-scrolling: touch;
}
.pricing-table {
  width: 100%;
  min-width: 44rem;
  border-collapse: collapse;
  font-size: .98rem;
}
.text-pricing-table { min-width: 52rem; }
.pricing-table th,
.pricing-table td {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.pricing-table thead th {
  background: var(--surface-strong);
  color: var(--text);
  font-size: .88rem;
  letter-spacing: .02em;
  white-space: nowrap;
}
.pricing-table tbody th { font-weight: 700; white-space: nowrap; }
.pricing-table tbody tr:last-child th,
.pricing-table tbody tr:last-child td { border-bottom: 0; }
.pricing-table td:nth-child(n+3) { white-space: nowrap; }
.pricing-source { margin: .75rem 0 0; color: var(--text-dim); font-size: .9rem; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.notice {
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  border: 1px solid #b8d0e5;
  border-radius: .75rem;
  background: var(--accent-soft);
  color: var(--text-dim);
}
.notice strong { color: var(--text); }
.cost-notice { display: grid; grid-template-columns: 10rem minmax(0, 1fr); gap: 1rem; align-items: start; }
.calculator-section { scroll-margin-top: 1rem; }
.calculator {
  margin-top: 1.5rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}
.calculator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.calculator label {
  display: grid;
  gap: .4rem;
  color: var(--text);
  font-weight: 700;
}
.calculator select,
.calculator input {
  width: 100%;
  min-height: 2.8rem;
  padding: .55rem .7rem;
  border: 1px solid #b9cbdc;
  border-radius: .55rem;
  background: #f8fbfe;
  color: var(--text);
  font: inherit;
  font-variant-numeric: tabular-nums;
  transition: border-color .18s ease-out, background-color .18s ease-out, box-shadow .18s ease-out;
}
.calculator select:hover,
.calculator input:hover { border-color: #82a9cc; background: #fff; }
.calculator label:focus-within { color: var(--accent-strong); }
.calculator select:focus-visible,
.calculator input:focus-visible { outline: 3px solid #8fc2ed; outline-offset: 2px; }
.range-field { grid-column: 1 / -1; }
.range-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.range-heading output {
  color: var(--accent-strong);
  font-size: .9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.calculator input[type="range"] {
  --range-progress: 25%;
  -webkit-appearance: none;
  appearance: none;
  min-height: 2.5rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  accent-color: var(--accent);
}
.calculator input[type="range"]::-webkit-slider-runnable-track {
  height: .7rem;
  border-radius: 999px;
  background: linear-gradient(to right, var(--accent) 0 var(--range-progress), #d9e4ee var(--range-progress) 100%);
}
.calculator input[type="range"]::-webkit-slider-thumb {
  width: 1.65rem;
  height: 1.65rem;
  margin-top: -.475rem;
  border: 3px solid #fff;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 2px 8px rgba(20, 91, 154, .28);
  -webkit-appearance: none;
}
.calculator input[type="range"]::-moz-range-track { height: .7rem; border-radius: 999px; background: #d9e4ee; }
.calculator input[type="range"]::-moz-range-progress { height: .7rem; border-radius: 999px; background: var(--accent); }
.calculator input[type="range"]::-moz-range-thumb { width: 1.3rem; height: 1.3rem; border: 3px solid #fff; border-radius: 50%; background: var(--accent); box-shadow: 0 2px 8px rgba(20, 91, 154, .28); }
.range-scale { display: flex; justify-content: space-between; color: var(--text-dim); font-size: .75rem; font-weight: 500; }
.calculator-results {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}
.estimate-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 1.1rem;
  border: 1px solid #7eb0dc;
  border-radius: .85rem;
  background: var(--accent-soft);
}
.estimate-highlight {
  min-width: 0;
  padding: .35rem 1rem;
}
.estimate-highlight + .estimate-highlight { border-left: 1px solid #b8d3eb; }
.estimate-highlight span,
.estimate-card span { display: block; color: var(--text-dim); font-size: .9rem; }
.estimate-highlight strong {
  display: block;
  margin-top: .25rem;
  color: var(--text);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.estimate-highlight small { display: block; margin-top: .4rem; color: var(--text-dim); line-height: 1.45; }
.estimate-breakdown {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-top: .25rem;
  border-top: 1px solid var(--line);
}
.estimate-card {
  min-width: 0;
  padding: .9rem 1rem;
}
.estimate-card + .estimate-card { border-left: 1px solid var(--line); }
.estimate-card strong { display: block; margin-top: .35rem; color: var(--text); font-size: clamp(.95rem, 1.6vw, 1.15rem); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.calculator-note { margin: 1rem 0 0; color: var(--text-dim); font-size: .82rem; line-height: 1.65; }
.faq-list { display: grid; gap: .7rem; margin-top: 1rem; }
.faq {
  border: 1px solid var(--line);
  border-radius: .7rem;
  background: var(--surface);
  overflow: hidden;
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.2rem;
  padding: .8rem 1rem;
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  touch-action: manipulation;
  transition: background-color .18s ease-out, color .18s ease-out;
}
.faq summary:hover { background: #f3f8fd; color: var(--accent-strong); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; color: var(--accent-strong); font-size: 1.35rem; font-weight: 400; transition: transform .2s ease-out; }
.faq[open] summary::after { transform: rotate(45deg); }
.faq summary:focus-visible { outline: 3px solid #8fc2ed; outline-offset: -3px; }
.faq-answer { padding: 0 1rem 1rem; color: var(--text-dim); }
.faq-answer p, .faq-answer ul { margin: 0; }
.faq-answer li + li { margin-top: .35rem; }
.prose { min-width: 0; max-width: 52rem; overflow-wrap: anywhere; }
.prose h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
.prose h2 { margin-top: 2.5rem; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.75rem; }
.prose p, .prose ul, .prose ol { margin-top: .8rem; }
.prose li + li { margin-top: .35rem; }
.prose .muted { color: var(--text-dim); }
.prose .links { overflow-wrap: anywhere; }
.page-intro {
  max-width: 46rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.guide-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2rem;
  border: 1px solid var(--line);
  border-radius: .9rem;
  background: var(--line);
  overflow: hidden;
}
.guide-map > div {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .1rem .7rem;
  padding: 1rem;
  background: var(--surface);
}
.guide-map span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}
.guide-map strong { align-self: end; font-size: .95rem; }
.guide-map small { color: var(--text-dim); line-height: 1.4; }
.safety-list {
  margin-top: 1rem !important;
  padding: 1.1rem 1.2rem 1.1rem 2.5rem;
  border-radius: .9rem;
  background: var(--accent-soft);
  color: var(--text-dim);
}
.provider-guide {
  margin-top: 2.5rem;
  padding: .1rem 1.5rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: .9rem;
  background: var(--surface);
}
.provider-guide h2 { margin-top: 1.3rem; }
.setup-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .8rem;
  padding: 0;
  list-style: none;
  counter-reset: setup;
}
.setup-steps li {
  position: relative;
  min-width: 0;
  min-height: 3rem;
  padding: .8rem 1rem .8rem 3.7rem;
  border-bottom: 1px solid var(--line);
  counter-increment: setup;
}
.setup-steps li::before {
  content: counter(setup);
  position: absolute;
  top: .65rem;
  left: .7rem;
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: .65rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}
.setup-steps li:last-child { border-bottom: 0; }
.compact-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact-steps li:last-child { border-bottom: 1px solid var(--line); }
.first-setup-steps {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.5rem;
}
.first-setup-steps li:last-child { border-bottom: 1px solid var(--line); }
.setup-actions { margin-top: 1.5rem; }
.permission-guide { margin-top: 1rem; }
.permission-guide h3 { margin-top: 1.2rem; }
.contact-panel {
  display: grid;
  grid-template-columns: 2.55rem minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.25rem;
  border-radius: .9rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.contact-panel p { margin: 0; }
.contact-panel p + p { margin-top: .7rem; }
.guide-app-setup {
  display: grid;
  grid-template-columns: minmax(14rem, 18rem) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  margin-top: 1rem;
}
.guide-screen { width: 100%; }
.api-screen-crop { aspect-ratio: 9 / 16; }
.api-screen-crop img { object-position: 50% 58%; }
.guide-app-setup .compact-steps { grid-template-columns: 1fr; margin-top: 0; }
.site-footer { margin-top: 0; padding: 2rem 0 3.5rem; background: #eef3f7; border-top: 1px solid var(--line); color: var(--text-dim); font-size: .9rem; }
.footer-links { display: flex; gap: .5rem 1.1rem; flex-wrap: wrap; margin-top: .5rem; }

@media (max-width: 42rem) {
  .wrap { width: calc(100% - 2rem); }
  .site-header .wrap { align-items: flex-start; padding-block: .8rem; flex-wrap: wrap; }
  .nav {
    width: calc(100% + 2rem);
    margin: 0 -1rem -.8rem;
    padding: .3rem 1rem .65rem;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 1.1rem;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { flex: none; min-height: 2.75rem; display: inline-flex; align-items: center; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art-wrap { order: 2; }
  .hero-facts { gap: .45rem; }
  .preview-layout, .feature-layout, .modes-content, .guide-app-setup { grid-template-columns: 1fr; }
  .workflow-store-shot, .modes-store-shot { width: min(100%, 22rem); }
  .guide-screen { max-width: 20rem; margin-inline: auto; }
  .cards { grid-template-columns: 1fr; }
  .transform-demo { grid-template-columns: 1fr; }
  .transform-demo figcaption, .demo-note { grid-column: auto; }
  .demo-arrow { transform: rotate(90deg); justify-self: center; }
  .trust-strip { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step { grid-template-columns: 2.25rem minmax(0, 1fr); grid-template-rows: auto; }
  .step:not(:last-child)::after { top: 3rem; bottom: -.35rem; left: 1.1rem; right: auto; width: 1px; height: auto; }
  .cost-notice { grid-template-columns: 1fr; gap: .25rem; }
  .guide-map, .compact-steps, .first-setup-steps { grid-template-columns: 1fr; }
  .provider-guide { padding-inline: 1rem; }
  .contact-panel { grid-template-columns: 1fr; }
  .calculator-grid, .estimate-breakdown { grid-template-columns: 1fr; }
  .range-heading { align-items: flex-start; flex-direction: column; gap: .2rem; }
  .estimate-card + .estimate-card { border-top: 1px solid var(--line); border-left: 0; }
}

@media (min-width: 42.01rem) and (max-width: 64rem) {
  .hero-grid { grid-template-columns: minmax(0, .95fr) minmax(18rem, 1.05fr); gap: 2rem; }
  .feature-layout { grid-template-columns: 1fr; }
  .feature-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-card { grid-template-columns: 1fr; }
  .feature-card .feature-icon { grid-row: auto; margin-bottom: .4rem; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(2)::after { display: none; }
  .estimate-breakdown { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 22rem) {
  .estimate-highlights { grid-template-columns: 1fr; }
  .estimate-highlight + .estimate-highlight { margin-top: .8rem; padding-top: 1rem; border-top: 1px solid #b8d3eb; border-left: 0; }
}