:root {
  --ink: #163132;
  --ink-2: #355254;
  --muted: #637879;
  --line: #d7e4df;
  --paper: #fbfcf8;
  --soft: #eef5ef;
  --teal: #0b6969;
  --teal-dark: #0b3b3c;
  --green: #98d7c2;
  --gold: #c8954b;
  --white: #ffffff;
  --shadow: 0 20px 55px rgba(13, 44, 45, 0.14);
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(6, 31, 31, 0.34);
  color: var(--white);
  backdrop-filter: blur(10px);
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled,
.site-header.compact,
.subpage .site-header {
  position: sticky;
  background: rgba(251, 252, 248, 0.96);
  color: var(--ink);
  box-shadow: 0 8px 30px rgba(11, 59, 60, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--teal-dark);
  color: var(--white);
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(11, 59, 60, 0.2);
  overflow: hidden;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0;
}

.brand small {
  color: currentColor;
  opacity: 0.72;
  font-size: 0.72rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.88;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-cta {
  padding: 9px 14px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--teal-dark);
}

.hero picture,
.hero img,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero img {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(6, 31, 31, 0.82) 0%, rgba(6, 31, 31, 0.48) 42%, rgba(6, 31, 31, 0.04) 76%),
    linear-gradient(0deg, rgba(6, 31, 31, 0.35), rgba(6, 31, 31, 0.03) 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 36px));
  margin: 0 0 clamp(34px, 8vh, 78px) clamp(18px, 7vw, 88px);
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  margin: 0;
  max-width: 11em;
  line-height: 1.05;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 12.5em;
  font-size: clamp(2.45rem, 4.4vw, 4.7rem);
  line-height: 1.12;
}

.page-hero h1 {
  font-size: clamp(2.4rem, 6vw, 5.6rem);
}

.hero-lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.hero-actions,
.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-campaign-text {
  width: fit-content;
  margin: 18px 0 0;
  color: #ffb347;
  font-size: clamp(1.02rem, 2.2vw, 1.28rem);
  font-weight: 900;
  line-height: 1.35;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.38);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 800;
  border: 1px solid transparent;
}

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

.button.secondary {
  border-color: rgba(255, 255, 255, 0.62);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.hero-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 640px;
  margin: 32px 0 0;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.hero-status div {
  padding: 14px 16px;
  background: rgba(5, 34, 34, 0.24);
  backdrop-filter: blur(10px);
}

.hero-status dt {
  color: var(--green);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-status dd {
  margin: 2px 0 0;
  font-size: 0.92rem;
}

.hero-status a {
  color: inherit;
  text-decoration-color: rgba(255, 255, 255, 0.65);
  text-underline-offset: 3px;
}

.hero-status a:hover {
  text-decoration-color: var(--white);
}

.section {
  padding: clamp(64px, 9vw, 112px) 0;
}

.section-inner {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(24px, 5vw, 80px);
  align-items: start;
}

.message-section {
  background: var(--white);
}

.message-card {
  max-width: 920px;
}

.message-card h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.22;
}

.message-copy {
  display: grid;
  gap: 14px;
  margin-top: 26px;
  padding-left: clamp(18px, 4vw, 34px);
  border-left: 4px solid var(--gold);
}

.message-copy p {
  max-width: 820px;
  margin: 0;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.8vw, 1.08rem);
}

.updates-section {
  background: var(--soft);
}

.update-list {
  display: grid;
  gap: 14px;
}

.update-item {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.update-item time {
  color: var(--teal-dark);
  font-weight: 900;
  line-height: 1.4;
}

.update-item h3 {
  margin: 4px 0 6px;
  font-size: clamp(1.06rem, 2vw, 1.2rem);
  line-height: 1.45;
}

.update-item h3 a {
  text-decoration: underline;
  text-decoration-color: rgba(11, 105, 105, 0.28);
  text-underline-offset: 5px;
}

.update-item h3 a:hover {
  color: var(--teal);
  text-decoration-color: currentColor;
}

.update-item p {
  margin: 0;
}

.update-label {
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
}

.update-item.latest {
  border-color: rgba(11, 105, 105, 0.28);
}

.section h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.8vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

.section p {
  color: var(--ink-2);
}

.campaign-alert {
  color: #d6421f;
  font-weight: 900;
}

.campaign-note {
  margin-top: 10px;
  line-height: 1.7;
}

.campaign-note .campaign-alert {
  display: inline-block;
  margin: 3px 0;
}

.voice-case {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(20px, 4vw, 42px);
  align-items: start;
  padding: clamp(20px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.voice-case + .voice-case {
  margin-top: 18px;
}

.voice-copy {
  display: grid;
  gap: 14px;
}

.voice-label {
  width: fit-content;
  margin: 0;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 900;
}

.voice-copy h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.15;
}

.voice-copy blockquote {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.voice-copy blockquote p {
  margin: 0;
  color: var(--ink-2);
}

.voice-product {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, min(100%, 360px)));
  gap: 10px;
  justify-content: center;
  align-items: start;
}

.voice-product.screenshot-gallery {
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.voice-product.screenshot-carousel {
  position: relative;
  display: grid;
  gap: 12px;
  width: 100%;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.carousel-track {
  position: relative;
  min-height: clamp(300px, 42vw, 540px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111318;
  box-shadow: 0 10px 26px rgba(13, 44, 45, 0.12);
}

.voice-product img,
.voice-product video {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  object-position: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111318;
  box-shadow: 0 10px 26px rgba(13, 44, 45, 0.12);
}

.voice-product.screenshot-gallery img {
  aspect-ratio: auto;
  height: auto;
  object-fit: contain;
}

.voice-product.screenshot-carousel .carousel-track img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  aspect-ratio: auto;
  object-fit: contain;
  opacity: 0;
  transition: opacity 280ms ease;
}

.voice-product.screenshot-carousel img.is-active {
  opacity: 1;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.carousel-controls button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--white);
  color: var(--teal-dark);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
}

.carousel-controls span {
  min-width: 58px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-align: center;
}

.profile-card {
  justify-items: center;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.faq-list h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  line-height: 1.45;
}

.faq-list p {
  margin: 0;
}

.muted {
  background: var(--soft);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.narrow {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

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

.concern-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.concern-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.concern-grid h3 {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.45;
}

.concern-grid p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.94rem;
}

.profile-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 18px;
  align-items: stretch;
}

.profile-card,
.profile-points article {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.profile-card {
  display: grid;
  align-content: center;
  justify-items: center;
  text-align: left;
}

.profile-portrait-wrap {
  position: relative;
  justify-self: center;
  width: min(210px, 62vw);
  aspect-ratio: 1;
  margin: 0 auto 22px;
}

.profile-portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(13, 44, 45, 0.12);
}

.profile-portrait-wrap figcaption {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100% - 24px);
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(16, 40, 41, 0.86);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.profile-name {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1;
  text-align: center;
}

.profile-card > p {
  justify-self: stretch;
}

.profile-points {
  display: grid;
  gap: 18px;
}

.profile-points h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.profile-security {
  grid-template-columns: minmax(0, 1fr);
  margin-top: 18px;
}

.credentials {
  margin-top: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.credentials h3 {
  margin: 0 0 14px;
  font-size: 1.16rem;
}

.credential-feature {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.credential-feature img {
  width: 96px;
  height: 96px;
  object-fit: contain;
}

.credential-feature strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.45;
}

.credential-feature p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.92rem;
  line-height: 1.7;
}

.credentials ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-flow: column;
  grid-template-rows: repeat(4, auto);
  gap: 10px 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.credentials li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-2);
}

.credentials li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.security-note {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 22px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.security-note img {
  width: 74px;
  height: 74px;
  object-fit: contain;
}

.security-note h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.security-note p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9rem;
  line-height: 1.7;
}

.security-note-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.security-note-links a {
  color: var(--teal);
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgba(11, 105, 105, 0.3);
  text-underline-offset: 4px;
}

.security-note-links a:hover {
  text-decoration-color: currentColor;
}

.service-card,
.pricing-card,
.readiness article,
.check-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(13, 44, 45, 0.06);
}

.service-card .icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  margin-bottom: 18px;
  background: var(--teal-dark);
  color: var(--green);
  font-weight: 900;
  font-size: 0.82rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.pricing-card {
  display: grid;
  gap: 14px;
}

.pricing-card h3 {
  margin: 0;
  font-size: 1.16rem;
  line-height: 1.45;
}

.pricing-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.price {
  margin: 0;
  color: var(--teal);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1;
}

.price span {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 800;
}

.service-card h3,
.readiness h3,
.flow-list h3,
.check-card h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.readiness a {
  display: inline-flex;
  margin-top: 8px;
  color: var(--teal);
  font-weight: 800;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.flow-list li {
  padding: 20px;
  border-top: 3px solid var(--teal);
  background: rgba(255, 255, 255, 0.64);
}

.flow-list span {
  display: block;
  color: var(--gold);
  font-weight: 900;
  margin-bottom: 16px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: clamp(24px, 5vw, 72px);
}

.contact-methods {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
}

.ai-yui-card {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 18px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--teal-dark), var(--teal));
  color: var(--white);
  box-shadow: 0 16px 38px rgba(11, 59, 60, 0.2);
}

.ai-yui-card strong {
  color: #ffb15c;
  font-size: 1.22rem;
  line-height: 1.35;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.28);
}

.ai-yui-card small {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.86rem;
}

.contact-methods div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.contact-methods dt {
  color: var(--muted);
  font-weight: 800;
}

.contact-methods dd {
  margin: 0;
  color: var(--ink);
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(20px, 4vw, 32px);
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 6px;
  color: var(--ink);
  font-weight: 800;
}

.field-note {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.mobile-sticky-cta {
  display: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

input.is-invalid,
select.is-invalid,
textarea.is-invalid {
  border-color: #c9332b;
  background: #fff4f2;
  box-shadow: 0 0 0 3px rgba(201, 51, 43, 0.12);
}

.ai-note {
  margin: 0;
  padding: 12px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--ink-2);
  font-size: 0.9rem;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.form-note:empty {
  display: none;
}

.form-note.is-error {
  color: #c9332b;
  font-weight: 800;
}

.form-note.is-success {
  color: var(--teal);
  font-weight: 800;
}

.ai-submit-status {
  min-height: 0;
}

.ai-submit-status.is-success {
  display: block;
  padding: 14px 16px;
  border: 2px solid rgba(11, 105, 105, 0.28);
  border-radius: 8px;
  background: #eaf7f1;
  color: var(--teal-dark);
  font-size: 1.02rem;
  font-weight: 900;
  line-height: 1.55;
  text-align: center;
  box-shadow: 0 10px 24px rgba(11, 59, 60, 0.12);
}

.ai-submit-status.is-error {
  display: block;
  padding: 12px 14px;
  border: 1px solid rgba(201, 51, 43, 0.25);
  border-radius: 8px;
  background: #fff4f2;
}

.ai-page-hero {
  background:
    linear-gradient(135deg, rgba(11, 59, 60, 0.94), rgba(11, 105, 105, 0.78)),
    var(--teal-dark);
}

.ai-chat-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(24px, 5vw, 64px);
  align-items: start;
}

.ai-chat-heading {
  position: sticky;
  top: 92px;
}

.ai-chat-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.8vw, 2.8rem);
  line-height: 1.18;
}

.ai-chat {
  display: grid;
  gap: 16px;
  padding: clamp(18px, 4vw, 30px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.ai-chat-log {
  display: grid;
  gap: 12px;
}

.chat-bubble {
  max-width: 86%;
  padding: 12px 14px;
  border-radius: 8px;
  line-height: 1.75;
}

.chat-bubble.bot {
  justify-self: start;
  background: var(--soft);
  color: var(--ink);
}

.chat-bubble.user {
  justify-self: end;
  background: var(--teal);
  color: var(--white);
}

.ai-chat-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ai-choice {
  min-height: 42px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.ai-choice:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.ai-chat-input {
  display: grid;
  gap: 12px;
}

.ai-chat-result {
  display: grid;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.ai-chat-result h3 {
  margin: 0;
}

.ai-chat-result textarea {
  min-height: 220px;
  background: #f8fbf8;
}

.site-footer {
  padding: 32px 0;
  background: #102829;
  color: var(--white);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.page-hero {
  padding: clamp(70px, 9vw, 120px) 0 clamp(42px, 7vw, 72px);
  background: linear-gradient(135deg, #f7fbf6 0%, #e3f0e8 100%);
}

.page-hero h1 {
  color: var(--ink);
}

.page-hero p {
  max-width: 780px;
  color: var(--ink-2);
}

.prose {
  max-width: 850px;
}

.prose h2 {
  margin: 34px 0 10px;
  font-size: 1.35rem;
}

.prose h3 {
  margin: 28px 0 8px;
  font-size: 1.08rem;
  line-height: 1.55;
}

.prose p {
  margin: 0 0 18px;
}

.prose ul {
  margin: 0 0 22px;
  padding-left: 1.35em;
  color: var(--ink-2);
}

.prose li + li {
  margin-top: 8px;
}

.blog-hero {
  background:
    linear-gradient(135deg, rgba(247, 251, 246, 0.96), rgba(227, 240, 232, 0.96)),
    var(--soft);
}

.blog-body {
  background: var(--white);
}

.blog-article {
  max-width: 860px;
}

.blog-article h2 {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.policy-meta,
.notice {
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--soft);
  border-radius: 8px;
}

.notice {
  margin-top: 34px;
}

.check-card h2 {
  font-size: 1.08rem;
}

@media (max-width: 880px) {
  .nav-toggle {
    display: block;
    color: currentColor;
  }

  .site-nav:not(.static) {
    position: absolute;
    top: calc(100% + 8px);
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: var(--white);
    color: var(--ink);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .site-nav.static {
    display: none;
  }

  .hero {
    min-height: 820px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(6, 31, 31, 0.86) 0%, rgba(6, 31, 31, 0.58) 55%, rgba(6, 31, 31, 0.12) 100%),
      linear-gradient(0deg, rgba(6, 31, 31, 0.4), rgba(6, 31, 31, 0.08) 50%);
  }

  .split,
  .contact-grid,
  .ai-chat-layout,
  .voice-case {
    grid-template-columns: 1fr;
  }

  .ai-chat-heading {
    position: static;
  }

  .service-grid,
  .concern-grid,
  .readiness,
  .checklist-grid,
  .profile-layout,
  .flow-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 12px 14px;
    gap: 10px;
  }

  .brand {
    gap: 9px;
  }

  .brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }

  .brand strong {
    font-size: 0.9rem;
  }

  .brand small {
    font-size: 0.66rem;
  }

  .site-nav:not(.static) {
    left: 14px;
    right: 14px;
    max-height: calc(100vh - 86px);
    overflow-y: auto;
  }

  .site-nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-toggle {
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
  }

  .hero {
    min-height: 690px;
    align-items: end;
  }

  .hero img {
    object-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(6, 31, 31, 0.9) 0%, rgba(6, 31, 31, 0.7) 58%, rgba(6, 31, 31, 0.28) 100%),
      linear-gradient(0deg, rgba(6, 31, 31, 0.42), rgba(6, 31, 31, 0.08) 55%);
  }

  .hero-content {
    width: calc(100% - 28px);
    margin: 0 auto 28px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2rem, 10vw, 2.65rem);
    line-height: 1.16;
  }

  .hero h1 {
    max-width: 9em;
  }

  .eyebrow {
    margin-bottom: 10px;
    font-size: 0.72rem;
    line-height: 1.5;
  }

  .hero-lead {
    margin-top: 16px;
    font-size: 0.96rem;
    line-height: 1.75;
  }

  .hero-actions,
  .panel-actions {
    margin-top: 22px;
  }

  .hero-campaign-text {
    width: 100%;
    text-align: center;
  }

  .button {
    width: 100%;
    min-height: 48px;
    padding: 11px 14px;
  }

  .hero-status {
    margin-top: 24px;
  }

  .hero-status div {
    padding: 13px 14px;
  }

  .hero-status dd {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .section {
    padding: 52px 0;
  }

  .section-inner {
    width: calc(100% - 28px);
  }

  .section-heading {
    margin-bottom: 24px;
  }

  .section h2 {
    font-size: clamp(1.65rem, 8vw, 2.15rem);
    line-height: 1.26;
  }

  .message-copy {
    padding-left: 16px;
  }

  .section p {
    font-size: 0.96rem;
  }

  .update-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px;
  }

  .hero-status,
  .service-grid,
  .concern-grid,
  .pricing-grid,
  .readiness,
  .checklist-grid,
  .profile-layout,
  .security-note,
  .credentials ul,
  .voice-product,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .voice-product {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 6px;
    scroll-snap-type: x mandatory;
  }

  .voice-product.screenshot-gallery {
    display: grid;
    grid-template-columns: 1fr;
    overflow-x: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .voice-product img,
  .voice-product video {
    flex: 0 0 min(74vw, 260px);
    scroll-snap-align: start;
  }

  .voice-product.screenshot-gallery img {
    flex: none;
    width: 100%;
    scroll-snap-align: none;
  }

  .voice-product.screenshot-carousel {
    display: grid;
    overflow: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .carousel-track {
    min-height: clamp(360px, 132vw, 620px);
  }

  .voice-product.screenshot-carousel .carousel-track img {
    position: absolute;
    inset: 0;
    flex: none;
    width: 100%;
    height: 100%;
    scroll-snap-align: none;
    object-fit: contain;
  }

  .mobile-sticky-cta {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 25;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    border-radius: 999px;
    background: var(--teal);
    color: var(--white);
    font-weight: 900;
    box-shadow: 0 14px 34px rgba(11, 59, 60, 0.28);
  }

  .site-footer {
    padding-bottom: 96px;
  }

  .profile-card {
    justify-items: center;
    text-align: left;
  }

  .credentials ul {
    grid-auto-flow: row;
    grid-template-rows: none;
  }

  .credential-feature {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 14px;
    padding: 14px;
  }

  .credential-feature img {
    width: 76px;
    height: 76px;
  }

  .profile-card,
  .profile-points article,
  .credentials,
  .contact-form {
    padding: 18px;
  }

  .profile-portrait-wrap {
    width: min(190px, 68vw);
    margin-inline: auto;
  }

  .profile-name {
    text-align: center;
    font-size: 2.15rem;
  }

  .contact-methods div {
    grid-template-columns: 72px 1fr;
    gap: 10px;
  }

  input,
  select,
  textarea {
    min-height: 46px;
    font-size: 16px;
  }

  textarea {
    min-height: 170px;
  }

  .ai-note,
  .form-note {
    font-size: 0.84rem;
    line-height: 1.65;
  }

  .ai-yui-card {
    padding: 16px;
  }

  .ai-chat {
    padding: 16px;
  }

  .chat-bubble {
    max-width: 100%;
  }

  .ai-chat-actions {
    display: grid;
  }

  .ai-choice {
    width: 100%;
    text-align: left;
  }

  .credentials ul {
    grid-auto-flow: row;
    grid-template-rows: none;
  }

  .footer-inner {
    display: grid;
  }
}