:root {
  --brand: #005BAB;
  --brand-dark: #004982;
  --ink: #07111f;
  --body: #2d3848;
  --muted: #667386;
  --line: #d9e0e8;
  --page: #f4f7f8;
  --surface: #ffffff;
  --teal: #16857d;
  --teal-soft: #e8f5f2;
  --dark: #07111f;
  --confirm: #8a6a34;
  --max: 1136px;
  --shadow-action: 0 10px 24px rgba(0, 91, 171, 0.16);
  --shadow-soft: 0 16px 42px rgba(7, 17, 31, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--body);
  font-family: "Geist", Aptos, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

html[lang="zh-CN"] body {
  font-family: "Geist", Aptos, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

body.menu-open {
  overflow: hidden;
}

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

img,
svg {
  max-width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 max(48px, calc((100% - var(--max)) / 2));
  background: rgba(244, 247, 248, 0.96);
  border-bottom: 1px solid rgba(217, 224, 232, 0.8);
  backdrop-filter: blur(10px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max);
  min-height: 64px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}

.brand-logo {
  display: block;
  width: 168px;
  height: auto;
}

.brand-footer .brand-logo {
  width: 164px;
}

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--brand);
}

.brand-mark::before {
  inset: 0;
  border-radius: 58% 42% 50% 44%;
  clip-path: polygon(8% 36%, 54% 0, 100% 10%, 82% 50%, 100% 86%, 42% 100%, 10% 76%, 34% 54%);
}

.brand-mark::after {
  width: 8px;
  height: 39px;
  left: 13px;
  top: -1px;
  border-radius: 999px;
  background: var(--page);
  transform: rotate(42deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-left: auto;
}

.site-nav a {
  position: relative;
  padding: 4px 0;
  color: var(--body);
  font-size: 16px;
}

.site-nav a::before {
  content: attr(data-label);
  display: block;
  height: 0;
  overflow: hidden;
  font-weight: 700;
  visibility: hidden;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1px;
  height: 2px;
  background: var(--brand);
  opacity: 0;
}

.site-nav a:hover {
  color: var(--brand);
}

.site-nav a.active {
  color: var(--ink);
  font-weight: 700;
}

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

.menu-toggle {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

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

.btn:focus-visible,
.menu-toggle:focus-visible,
.faq-button:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid rgba(0, 91, 171, 0.28);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-dark);
  box-shadow: var(--shadow-action);
}

.btn-dark {
  background: var(--dark);
  color: #fff;
}

.btn-light {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.btn-light:hover {
  border-color: rgba(0, 91, 171, 0.34);
  box-shadow: 0 8px 22px rgba(7, 17, 31, 0.08);
}

.page-shell {
  overflow: hidden;
  padding-top: 64px;
}

.section {
  padding: 118px 0;
}

.section-white {
  background: #fff;
}

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

.container {
  width: min(var(--max), calc(100% - 96px));
  margin: 0 auto;
}

.narrow {
  width: min(860px, calc(100% - 96px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 38px;
  color: var(--brand);
  font-size: 16px;
  font-weight: 700;
  text-wrap: balance;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.12;
}

h1 {
  font-size: clamp(42px, 5vw, 68px);
  max-width: 780px;
}

h2 {
  font-size: clamp(30px, 3vw, 42px);
}

h3 {
  font-size: 24px;
}

p {
  margin: 0;
}

.lead {
  max-width: 670px;
  margin-top: 54px;
  color: var(--body);
  font-size: 16px;
}

.support-copy {
  max-width: 660px;
  margin-top: 40px;
  color: var(--muted);
  font-size: 16px;
}

.hero {
  position: relative;
  min-height: 704px;
  padding: 112px 0 104px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  width: min(var(--max), calc(100% - 96px));
  margin: 0 auto;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  margin-top: 46px;
}

.hero-visual {
  position: absolute;
  top: 6px;
  right: 72px;
  width: 360px;
  height: 360px;
  pointer-events: none;
}

.orb {
  position: absolute;
  right: 42px;
  top: 0;
  width: 248px;
  height: 248px;
  border-radius: 50%;
  background: rgba(0, 91, 171, 0.12);
}

.arcs {
  position: absolute;
  right: 64px;
  top: 58px;
  width: 280px;
  height: 170px;
}

.arcs span {
  position: absolute;
  right: calc(var(--i) * 18px);
  top: calc(var(--i) * 14px);
  width: calc(220px - var(--i) * 18px);
  height: calc(150px - var(--i) * 13px);
  border-top: 4px solid rgba(22, 133, 125, 0.5);
  border-radius: 50%;
}

.dot-grid {
  position: absolute;
  right: 82px;
  top: 312px;
  display: grid;
  grid-template-columns: repeat(7, 5px);
  gap: 34px;
}

.dot-grid span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(0, 91, 171, 0.17);
}

.hero-visual-image {
  position: absolute;
  top: 34px;
  left: 720px;
  width: 800px;
  max-width: none;
  aspect-ratio: 1379 / 912;
  height: auto;
  overflow: visible;
  border: 0;
  background: transparent;
}

.hero-visual-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-section {
  padding: 112px 0 120px;
}

.section-intro {
  margin-top: 18px;
  color: var(--muted);
  font-size: 16px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 70px;
}

.service-card {
  position: relative;
  min-height: 216px;
  padding: 0 28px 0 24px;
  border-left: 1px solid rgba(217, 224, 232, 0.8);
  transition: transform 180ms ease, border-color 180ms ease;
}

.service-card:last-child {
  border-right: 1px solid rgba(217, 224, 232, 0.8);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 91, 171, 0.26);
}

.service-card::before {
  content: "";
  position: absolute;
  top: 1px;
  right: 28px;
  width: 76px;
  height: 38px;
  opacity: 0.82;
  pointer-events: none;
}

.service-card:nth-child(1)::before {
  background:
    linear-gradient(90deg, transparent 0 7px, rgba(0, 91, 171, 0.8) 7px 9px, transparent 9px 16px),
    linear-gradient(90deg, transparent 0 17px, rgba(22, 133, 125, 0.5) 17px 19px, transparent 19px 28px);
  background-size: 16px 28px, 28px 18px;
  background-position: 0 5px, 4px 10px;
  background-repeat: repeat-x;
}

.service-card:nth-child(2)::before {
  background:
    linear-gradient(90deg, rgba(0, 91, 171, 0.42), rgba(0, 91, 171, 0.08) 62%, transparent 62%),
    linear-gradient(90deg, rgba(22, 133, 125, 0.46), rgba(22, 133, 125, 0.1) 74%, transparent 74%),
    linear-gradient(90deg, rgba(0, 91, 171, 0.28), rgba(0, 91, 171, 0.08) 50%, transparent 50%);
  background-size: 76px 4px, 76px 4px, 76px 4px;
  background-position: 0 8px, 0 18px, 0 28px;
  background-repeat: no-repeat;
}

.service-card:nth-child(3)::before {
  border: 1px solid rgba(0, 91, 171, 0.42);
  background:
    linear-gradient(90deg, rgba(22, 133, 125, 0.44) 0 18px, transparent 18px),
    linear-gradient(180deg, rgba(0, 91, 171, 0.64) 0 2px, transparent 2px),
    linear-gradient(90deg, transparent 0 54px, rgba(0, 91, 171, 0.64) 54px 56px, transparent 56px),
    linear-gradient(180deg, transparent 0 27px, rgba(0, 91, 171, 0.64) 27px 29px, transparent 29px);
  background-color: rgba(0, 91, 171, 0.035);
}

.service-chip {
  display: inline-flex;
  min-width: 82px;
  height: 30px;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
  padding: 0 16px;
  border: 1px solid var(--brand);
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  box-shadow: 0 8px 18px rgba(0, 91, 171, 0.14);
}

.service-chip::before {
  content: none;
}

.service-card h3 {
  max-width: 310px;
  font-size: 25px;
}

.service-card p {
  max-width: 300px;
  margin-top: 34px;
  font-size: 16px;
}

.text-link {
  display: inline-flex;
  position: relative;
  margin-top: 32px;
  color: var(--brand);
  font-size: 16px;
  font-weight: 700;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -5px;
  height: 2px;
  background: currentColor;
  transition: right 180ms ease;
}

.text-link:hover::after {
  right: 0;
}

.support-strip {
  margin: 0 auto;
  padding: 70px 50px;
  border: 1px solid rgba(22, 133, 125, 0.3);
  background: var(--teal-soft);
}

.support-strip-horizontal {
  border-color: rgba(217, 224, 232, 0.92);
  border-left: 3px solid rgba(22, 133, 125, 0.72);
  background: rgba(255, 255, 255, 0.72);
}

.support-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 22px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: none;
}

.support-grid {
  display: grid;
  grid-template-columns: 1.1fr 1px 1fr;
  gap: 48px;
  align-items: center;
}

.support-rule {
  height: 140px;
  background: rgba(217, 224, 232, 0.86);
}

.support-list {
  display: grid;
  gap: 22px;
}

.support-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  color: var(--ink);
  font-weight: 400;
}

.support-item strong {
  font-weight: 700;
}

.support-dot {
  margin-top: 0.35em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--teal);
  flex: 0 0 auto;
}

.home-flow {
  max-width: 980px;
}

.home-flow .section-intro {
  max-width: 700px;
}

.home-flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px;
  margin-top: 56px;
  border-top: 1px solid var(--line);
}

.home-flow-step {
  padding-top: 28px;
}

.home-flow-step span {
  display: block;
  margin-bottom: 24px;
  color: var(--brand);
  font-size: 16px;
  font-weight: 700;
}

.home-flow-step h3 {
  font-size: 20px;
  font-weight: 700;
}

.home-flow-step p {
  margin-top: 18px;
  color: var(--muted);
  font-size: 16px;
}

.proof {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(430px, 500px);
  gap: 96px;
  align-items: start;
}

.proof-editorial {
  display: block;
}

.proof-editorial > div {
  max-width: none;
}

.proof p {
  max-width: 580px;
  margin-top: 34px;
  font-size: 16px;
}

.proof-editorial > div > p {
  max-width: 760px;
}

.proof-editorial .text-proof-list {
  max-width: none;
  margin-top: 56px;
}

.proof-editorial .text-proof-list > div {
  grid-template-columns: 52px minmax(220px, 360px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 30px 0;
}

.proof-editorial .text-proof-list p {
  grid-column: auto;
  max-width: 660px;
  margin-top: 0;
}

.need-confirm {
  margin-top: 46px;
  color: var(--confirm);
  font-size: 16px;
  font-weight: 700;
}

.text-proof-list {
  display: grid;
  gap: 0;
  max-width: 720px;
  margin-top: 44px;
  border-top: 1px solid var(--line);
}

.text-proof-list > div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.text-proof-list span {
  color: var(--brand);
  font-weight: 700;
}

.text-proof-list strong {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.text-proof-list p {
  grid-column: 2;
  max-width: 560px;
  margin-top: 8px;
  color: var(--muted);
}

.text-proof-grid {
  max-width: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  border-top: 0;
}

.text-proof-grid > div {
  display: block;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 0;
}

.evidence-panel {
  padding: 44px 34px;
  background: var(--dark);
  color: #fff;
}

.evidence-panel strong {
  display: block;
  margin-bottom: 34px;
  font-size: 16px;
}

.evidence-row {
  display: grid;
  grid-template-columns: 34px 1fr 70px;
  gap: 18px;
  align-items: center;
  padding: 13px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
}

.evidence-bar,
.evidence-bar-small {
  height: 6px;
  border-radius: 999px;
}

.evidence-bar {
  background: rgba(0, 91, 171, 0.9);
}

.evidence-bar-small {
  background: rgba(22, 133, 125, 0.8);
}

.proof-image-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  grid-template-rows: repeat(3, 142px);
  gap: 16px;
  margin-top: 156px;
}

.evidence-gallery {
  grid-template-columns: 1.25fr repeat(3, 1fr);
  grid-template-rows: 220px;
  margin-top: 44px;
}

.evidence-gallery .proof-image-large {
  grid-row: auto;
}

.proof-image {
  margin: 0;
  transition: transform 180ms ease;
}

.proof-image-large {
  grid-row: span 3;
}

.image-placeholder {
  position: relative;
  height: calc(100% - 26px);
  min-height: 92px;
  overflow: hidden;
  border: 1px solid rgba(217, 224, 232, 0.95);
  background:
    linear-gradient(135deg, rgba(0, 91, 171, 0.08), rgba(22, 133, 125, 0.06)),
    #f8fbfc;
}

.proof-image-large .image-placeholder {
  height: calc(100% - 28px);
}

.image-placeholder::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(0, 91, 171, 0.12);
}

.image-placeholder::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 91, 171, 0.42), rgba(22, 133, 125, 0.28), transparent);
}

.proof-image figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 16px;
}

.proof-image img {
  display: block;
  width: 100%;
  height: calc(100% - 26px);
  min-height: 92px;
  object-fit: cover;
  border: 1px solid rgba(217, 224, 232, 0.95);
  background: #f8fbfc;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease, filter 180ms ease;
}

.proof-image:hover {
  transform: translateY(-3px);
}

.proof-image:hover img {
  border-color: rgba(0, 91, 171, 0.22);
  box-shadow: var(--shadow-soft);
  filter: saturate(1.03) contrast(1.02);
  transform: scale(1.012);
}

.proof-image-large img {
  height: calc(100% - 28px);
}

.logo-placeholders {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.placeholder-pill {
  min-width: 106px;
  padding: 10px 16px;
  border: 1px solid var(--brand);
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 8px 18px rgba(0, 91, 171, 0.14);
}

.cta-band {
  background: var(--dark);
  color: #fff;
}

.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
  padding: 76px 0;
}

.cta-band .btn {
  flex: 0 0 auto;
  min-width: 184px;
  min-height: 42px;
  padding: 0 20px;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.cta-band .btn-light {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 91, 171, 0.28);
}

.cta-band .btn-light:hover {
  border-color: var(--brand-dark);
  background: var(--brand-dark);
  box-shadow: var(--shadow-action);
}


.cta-band h2 {
  color: #fff;
}

.cta-band p {
  max-width: 720px;
  margin-top: 22px;
  color: #dce6ec;
  font-size: 16px;
}

.site-footer {
  padding: 44px 0;
  background: var(--dark);
  color: #dce6ec;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-links {
  display: flex;
  gap: 28px;
  font-size: 16px;
}

.footer-note {
  margin-top: 36px;
  color: rgba(220, 230, 236, 0.74);
  font-size: 16px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 18px;
  color: rgba(220, 230, 236, 0.62);
  font-size: 14px;
}

.footer-legal a {
  color: inherit;
}

.footer-legal a:hover {
  color: #fff;
}

.page-hero {
  padding: 116px 0 92px;
  text-align: center;
}

.page-hero h1 {
  max-width: 1040px;
  margin: 0 auto;
}

.page-hero p {
  max-width: 760px;
  margin: 32px auto 0;
  font-size: 16px;
}

.page-hero-secondary {
  color: var(--muted);
}

.page-hero .btn {
  margin-top: 52px;
}

.about-evidence {
  padding: 0 0 118px;
}

.about-evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) minmax(280px, 1fr);
  grid-template-rows: repeat(3, 168px);
  gap: 18px 24px;
}

.about-evidence-item {
  min-width: 0;
  margin: 0;
}

.about-evidence-primary {
  grid-row: 1 / span 3;
}

.about-evidence-item img {
  display: block;
  width: 100%;
  height: calc(100% - 30px);
  object-fit: cover;
  background: #f8fbfc;
}

.about-evidence-item figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.workflow-list {
  padding: 54px 0 110px;
}

.workflow-list h2,
.faq-wrap h2,
.qa-wrap h2 {
  margin-bottom: 68px;
}

.workflow-items {
  max-width: 860px;
}

.workflow-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 28px;
  padding: 0 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.workflow-item .num {
  color: var(--muted);
  font-size: 16px;
}

.workflow-item h3 {
  font-size: 19px;
  font-weight: 700;
}

.workflow-item p {
  max-width: 660px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 16px;
}

.qa-wrap {
  padding: 102px 0 116px;
  background: var(--page);
}

.qa-grid {
  counter-reset: qa-control;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.qa-item {
  counter-increment: qa-control;
  position: relative;
  grid-column: span 2;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  column-gap: 22px;
  align-content: start;
  overflow: hidden;
  min-height: 224px;
  padding: 32px 30px 30px;
  border: 1px solid rgba(217, 224, 232, 0.9);
  background: #fff;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.qa-item::before {
  content: counter(qa-control, decimal-leading-zero);
  grid-column: 1;
  grid-row: 1 / span 2;
  color: var(--brand);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

.qa-item::after {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--teal));
  opacity: 0.72;
}

.qa-item:nth-child(4) {
  grid-column: span 3;
}

.qa-item:nth-child(5) {
  grid-column: span 3;
}

.qa-item h3 {
  grid-column: 2;
  font-size: 19px;
  font-weight: 700;
}

.qa-item p {
  grid-column: 2;
  margin-top: 16px;
  color: var(--body);
  font-size: 16px;
  line-height: 1.55;
}

@media (hover: hover) and (pointer: fine) {
  .qa-item:hover {
    transform: translateY(-3px);
    border-color: rgba(0, 91, 171, 0.24);
    box-shadow: 0 6px 8px rgba(7, 17, 31, 0.08);
  }
}

.secure-support {
  background: rgba(255, 255, 255, 0.62);
}

.secure-support .section-intro {
  max-width: 560px;
}

.faq-wrap {
  padding: 110px 0 128px;
}

.faq {
  max-width: 920px;
}

.faq-item {
  border-top: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-button,
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 28px 0;
  background: transparent;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease;
}

.faq-question {
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-button:hover,
.faq-question:hover {
  color: var(--brand);
}

.faq-icon {
  color: var(--brand);
  font-size: 20px;
  line-height: 1;
}

.faq-panel {
  display: none;
  max-width: 720px;
  padding: 0 0 28px;
  color: var(--body);
  font-size: 16px;
}

.faq-item.open .faq-panel,
.faq-item[open] .faq-panel {
  display: block;
}

.faq-item.open .faq-icon,
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

.back-to-top {
  position: fixed;
  right: 34px;
  bottom: 34px;
  z-index: 28;
  display: none;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(217, 224, 232, 0.78);
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 14px 34px rgba(7, 17, 31, 0.12);
  cursor: pointer;
}

.back-to-top.is-visible {
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top::before {
  content: "";
  width: 18px;
  height: 18px;
  border-top: 3px solid currentColor;
  border-left: 3px solid currentColor;
  transform: translateY(5px) rotate(45deg);
}

.back-to-top:hover {
  color: var(--brand);
  border-color: rgba(0, 91, 171, 0.28);
}

.back-to-top:focus-visible {
  outline: 3px solid rgba(0, 91, 171, 0.28);
  outline-offset: 3px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 70px;
}

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

.detail-card,
.contact-card {
  position: relative;
  padding: 36px;
  border: 1px solid var(--line);
  background: #fff;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.contact-card {
  padding: 34px 28px;
}

.detail-card:hover,
.contact-card:hover {
  border-color: rgba(0, 91, 171, 0.22);
  box-shadow: var(--shadow-soft);
  transform: translateY(-3px);
}

.detail-card h3,
.contact-card h3 {
  font-size: 22px;
  font-weight: 400;
}

.contact-card-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--brand);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.detail-card p,
.contact-card p {
  margin-top: 22px;
  font-size: 15px;
  overflow-wrap: break-word;
}

.capability-card {
  min-height: 388px;
  overflow: hidden;
}

.capability-card .service-chip {
  margin-bottom: 32px;
}

.capability-card::before {
  content: "";
  position: absolute;
  top: 34px;
  right: 36px;
  width: 92px;
  height: 46px;
  opacity: 0.78;
  pointer-events: none;
}

.capability-card-speech::before {
  background:
    linear-gradient(90deg, transparent 0 8px, rgba(0, 91, 171, 0.78) 8px 10px, transparent 10px 18px),
    linear-gradient(90deg, transparent 0 19px, rgba(22, 133, 125, 0.48) 19px 21px, transparent 21px 32px);
  background-size: 18px 32px, 32px 22px;
  background-position: 0 7px, 6px 12px;
  background-repeat: repeat-x;
}

.capability-card-text::before {
  background:
    linear-gradient(90deg, rgba(0, 91, 171, 0.44), rgba(0, 91, 171, 0.08) 66%, transparent 66%),
    linear-gradient(90deg, rgba(22, 133, 125, 0.48), rgba(22, 133, 125, 0.1) 78%, transparent 78%),
    linear-gradient(90deg, rgba(0, 91, 171, 0.28), rgba(0, 91, 171, 0.08) 54%, transparent 54%);
  background-size: 92px 4px, 92px 4px, 92px 4px;
  background-position: 0 10px, 0 23px, 0 36px;
  background-repeat: no-repeat;
}

.capability-card-vision::before {
  border: 1px solid rgba(0, 91, 171, 0.42);
  background:
    linear-gradient(90deg, rgba(22, 133, 125, 0.44) 0 22px, transparent 22px),
    linear-gradient(180deg, rgba(0, 91, 171, 0.64) 0 2px, transparent 2px),
    linear-gradient(90deg, transparent 0 66px, rgba(0, 91, 171, 0.64) 66px 68px, transparent 68px),
    linear-gradient(180deg, transparent 0 33px, rgba(0, 91, 171, 0.64) 33px 35px, transparent 35px);
  background-color: rgba(0, 91, 171, 0.035);
}

.contact-card p:empty {
  display: none;
}

.contact-values {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
  font-size: 15px;
}

.contact-values li {
  overflow-wrap: break-word;
}

.contact-qr {
  margin: 28px 0 0;
}

.contact-qr img {
  display: block;
  width: min(170px, 100%);
  margin: 0 auto;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 10px;
  border: 1px solid rgba(217, 224, 232, 0.92);
  background: #fff;
}

.contact-qr figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  white-space: nowrap;
}

.bullet-list {
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.bullet-list li {
  position: relative;
  padding-left: 24px;
  margin: 12px 0;
  font-size: 16px;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

.scenario-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 54px;
  background: #fff;
}

.scenario-table th,
.scenario-table td {
  padding: 22px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 16px;
}

.scenario-table th {
  color: var(--ink);
  font-weight: 700;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 60px;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 42px;
  margin-top: 44px;
}

.checklist span {
  display: block;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--body);
  font-size: 16px;
}

@media (max-width: 1280px) {
  .hero-inner {
    width: min(100% - 72px, var(--max));
    margin: 0 auto;
  }

  .hero-visual-image {
    left: 620px;
    width: 560px;
    max-width: none;
    height: auto;
  }
}

@media (max-width: 1100px) {
  .hero-visual-image {
    left: 580px;
    width: 420px;
    max-width: none;
    height: auto;
  }

  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qa-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .qa-item,
  .qa-item:nth-child(4),
  .qa-item:nth-child(5) {
    grid-column: auto;
  }

  .qa-item:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .site-header {
    padding: 0 22px;
  }

  .site-header-inner {
    width: 100%;
  }

  .brand-logo {
    width: 142px;
  }

  .site-nav {
    display: none;
  }

  .site-header.nav-open .site-nav {
    position: fixed;
    inset: 64px 0 auto 0;
    display: grid;
    gap: 0;
    padding: 18px 22px 26px;
    background: var(--page);
    border-bottom: 1px solid var(--line);
  }

  .site-header.nav-open .site-nav a {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }

  .menu-toggle {
    display: inline-flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: #fff;
    color: var(--ink);
    cursor: pointer;
  }

  .menu-toggle span {
    display: block;
    width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease;
}

  .site-header.nav-open .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.nav-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .container,
  .narrow,
  .hero-inner {
    width: min(100% - 44px, var(--max));
  }

  .hero {
    min-height: auto;
    padding: 62px 0 80px;
  }

  .hero-inner {
    display: block;
  }

  .eyebrow {
    margin-bottom: 30px;
    max-width: 330px;
    font-size: 24px;
    line-height: 1.28;
  }

  h1 {
    font-size: clamp(50px, 13vw, 60px);
    line-height: 1.08;
  }

  h2 {
    font-size: 30px;
  }

  .lead {
    margin-top: 44px;
  }

  .support-copy {
    margin-top: 34px;
  }

  .hero-actions {
    flex-direction: column;
    margin-top: 42px;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 44px;
    padding: 0 18px;
  }

  .hero-visual {
    top: 178px;
    right: 0;
    width: 150px;
    height: 210px;
    opacity: 0.9;
  }

  .hero-visual-image {
    position: relative;
    top: auto;
    right: auto;
    left: auto;
    width: min(100%, 320px);
    max-width: 320px;
    height: auto;
    margin: 42px auto 0;
    opacity: 1;
  }

  .orb {
    right: 28px;
    width: 78px;
    height: 78px;
  }

  .arcs {
    right: 34px;
    top: 24px;
    width: 130px;
    height: 90px;
  }

  .arcs span {
    border-top-width: 3px;
    width: calc(118px - var(--i) * 11px);
    height: calc(78px - var(--i) * 8px);
  }

  .dot-grid {
    right: 48px;
    top: 132px;
    grid-template-columns: repeat(4, 4px);
    gap: 18px;
  }

  .dot-grid span {
    width: 4px;
    height: 4px;
  }

  .service-section,
  .section,
  .faq-wrap {
    padding: 76px 0;
  }

  .service-grid,
  .detail-grid,
  .contact-grid,
  .checklist,
  .proof,
  .qa-grid {
    grid-template-columns: 1fr;
  }

  .service-grid {
    margin-top: 50px;
  }

  .service-card {
    min-height: auto;
    padding: 22px 0 28px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .service-chip {
    margin-bottom: 22px;
  }

  .service-card:last-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .support-strip {
    padding: 48px 28px;
  }

  .support-strip-horizontal {
    border-left-width: 1px;
    border-top: 3px solid rgba(22, 133, 125, 0.72);
  }

  .support-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .home-flow-grid {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 42px;
  }

  .home-flow-step {
    padding: 24px 0;
    border-bottom: 1px solid var(--line);
  }

  .support-rule {
    display: none;
  }

  .proof {
    gap: 50px;
  }

  .proof-image-grid {
    margin-top: 0;
  }

  .evidence-gallery {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .text-proof-list > div {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .text-proof-list p {
    grid-column: auto;
  }

  .proof-editorial .text-proof-list > div {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 24px 0;
  }

  .proof-editorial .text-proof-list p {
    margin-top: 4px;
  }

  .text-proof-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .cta-band .container,
  .footer-inner {
    display: block;
  }

  .cta-band .btn {
    margin-top: 32px;
  }

  .footer-links {
    flex-wrap: wrap;
    margin-top: 34px;
  }

  .page-hero {
    padding: 78px 0 70px;
  }

  .page-hero p {
    margin-top: 24px;
  }

  .page-hero-secondary {
    margin-top: 18px;
  }

  .about-evidence {
    padding-bottom: 76px;
  }

  .about-evidence-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    gap: 28px;
  }

  .about-evidence-primary {
    grid-row: auto;
  }

  .about-evidence-item img {
    height: auto;
    aspect-ratio: 16 / 10;
  }

  .about-evidence-primary img {
    aspect-ratio: 4 / 3;
  }

  .workflow-list h2,
  .faq-wrap h2,
  .qa-wrap h2 {
    margin-bottom: 42px;
  }

  .workflow-item {
    grid-template-columns: 36px 1fr;
  }

  .qa-grid {
    gap: 34px;
  }

  .qa-item,
  .qa-item:nth-child(4),
  .qa-item:nth-child(5) {
    grid-column: auto;
  }

  .qa-item {
    min-height: 0;
    padding: 28px 24px;
    grid-template-columns: 42px minmax(0, 1fr);
    column-gap: 16px;
  }

  .contact-card {
    padding: 34px 42px;
  }

  .back-to-top {
    right: 22px;
    bottom: 22px;
    width: 52px;
    height: 52px;
  }

  .qa-item:last-child {
    grid-column: auto;
  }

  .scenario-table,
  .scenario-table tbody,
  .scenario-table tr,
  .scenario-table td {
    display: block;
    width: 100%;
  }

  .scenario-table thead {
    display: none;
  }

  .scenario-table {
    margin-top: 36px;
    border-collapse: separate;
    border-spacing: 0;
    background: transparent;
  }

  .scenario-table tbody {
    display: grid;
    gap: 14px;
  }

  .scenario-table tr {
    padding: 18px;
    border: 1px solid var(--line);
    background: #fff;
  }

  .scenario-table td {
    padding: 0;
    border: 0;
    font-size: 16px;
    line-height: 1.55;
  }

  .scenario-table td + td {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(217, 224, 232, 0.7);
  }

  .scenario-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 16px;
    font-weight: 700;
  }

  .scenario-table td:last-child {
    color: var(--brand);
    font-weight: 700;
  }
}

@media (max-width: 390px) {
  .eyebrow {
    font-size: 22px;
  }

  h1 {
    font-size: clamp(46px, 12.4vw, 52px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}