:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #071022;
  --text: #172136;
  --muted: #5d6a7d;
  --quiet: #7c8899;
  --line: #e2e7ef;
  --line-strong: #cfd8e6;
  --blue: #0a6cff;
  --blue-dark: #0054d1;
  --blue-soft: #eaf3ff;
  --green: #16b981;
  --green-soft: #e7f8f0;
  --surface: #ffffff;
  --surface-raised: #fbfdff;
  --shadow-sm: 0 10px 28px rgba(21, 34, 52, .08);
  --shadow-md: 0 24px 68px rgba(21, 34, 52, .14);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  text-rendering: optimizeLegibility;
}

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

img,
svg {
  display: block;
}

.section-wrap {
  width: min(100% - 48px, 1280px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  min-height: 78px;
  padding: 0 64px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(18px);
}

.home-header {
  grid-template-columns: auto 1fr;
}

.home-header .nav-links {
  justify-content: flex-end;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  color: var(--ink);
  font-size: 22px;
  font-weight: 760;
}

.brand-mark {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: linear-gradient(180deg, #1477ff 0%, #075be5 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .36), 0 8px 20px rgba(10, 108, 255, .22);
}

.brand-mark::after {
  content: "C";
  color: #ffffff;
  font-size: 16px;
  font-weight: 860;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  color: var(--text);
  font-size: 14px;
  font-weight: 690;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--blue);
}

.status-link,
.release-line {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 690;
}

.status-link {
  justify-self: end;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: 0 10px 25px rgba(21, 34, 52, .05);
}

.status-dot,
.release-line span {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px var(--green-soft);
}

.hero {
  display: grid;
  grid-template-columns: minmax(560px, .94fr) minmax(0, 1.06fr);
  align-items: center;
  gap: 52px;
  padding: 72px 0 34px;
}

.hero-copy {
  min-width: 0;
}

.hero h1 {
  max-width: none;
  margin: 0;
  color: var(--ink);
  font-size: clamp(60px, 4.4vw, 66px);
  line-height: 1.01;
  letter-spacing: 0;
  white-space: nowrap;
}

.hero-subtitle {
  max-width: 640px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
}

.inline-shortcut {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 0 4px;
  vertical-align: middle;
}

.inline-shortcut kbd {
  display: inline-grid;
  place-items: center;
  min-width: 31px;
  height: 29px;
  padding: 0 8px;
  border: 1px solid #c7d1df;
  border-bottom-color: #aeb9c8;
  border-radius: 7px;
  background: linear-gradient(180deg, #ffffff 0%, #eef3f9 100%);
  box-shadow: inset 0 -2px 0 rgba(91, 108, 132, .12), 0 8px 18px rgba(21, 34, 52, .08);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  font-weight: 790;
  line-height: 1;
  transform: translateY(-1px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 760;
  line-height: 1;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--blue);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(10, 108, 255, .23);
}

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

.button-secondary {
  border-color: var(--line-strong);
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(21, 34, 52, .06);
}

.button-secondary:hover {
  border-color: #a9caff;
  color: var(--blue);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 640px;
  margin-top: 24px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 18px;
  max-width: 640px;
  padding: 0;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 670;
  list-style: none;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust li::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}

.product-visual {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #e7edf4;
  box-shadow: var(--shadow-md);
}

.product-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: 28px 0 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  min-width: 0;
  padding: 0 28px;
}

.proof-item + .proof-item {
  border-left: 1px solid var(--line);
}

.proof-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid #d9e7fb;
  border-radius: 8px;
  color: var(--blue);
  background: var(--blue-soft);
}

.proof-icon svg {
  width: 25px;
  height: 25px;
}

.proof-item h3 {
  margin: 1px 0 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.25;
  letter-spacing: 0;
}

.proof-item p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.42;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.section-heading-left {
  margin: 0;
  text-align: left;
}

.section-heading h2,
.final-cta h2,
.policy-page h1,
.contact-page h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.04;
  letter-spacing: 0;
}

.section-heading p,
.final-cta p,
.policy-page p,
.contact-page p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.section-heading p {
  margin: 18px 0 0;
}

.pricing-section {
  padding: 78px 0 84px;
}

.pricing-section .section-heading {
  max-width: 1120px;
}

.pricing-section .section-heading h2 {
  font-size: clamp(42px, 3.35vw, 50px);
  white-space: nowrap;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.pricing-card {
  min-width: 0;
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: var(--shadow-sm);
}

.pricing-card-featured {
  border-color: #9fc6ff;
  box-shadow: 0 18px 45px rgba(10, 108, 255, .14);
}

.pricing-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: 0;
}

.price-note {
  margin: 8px 0 0;
  color: var(--quiet);
  font-size: 14px;
  font-weight: 690;
}

.token-count {
  margin: 34px 0 0;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.2;
  font-weight: 710;
}

.token-count span {
  display: block;
  color: var(--blue);
  font-size: clamp(38px, 4.4vw, 54px);
  font-weight: 820;
  letter-spacing: 0;
}

.quota-copy {
  max-width: 330px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.models-section {
  padding: 80px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f8fbff 0%, #f2f7fc 100%);
}

.models-grid {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  align-items: center;
  gap: 72px;
}

.model-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.model-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 98px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 10px 30px rgba(21, 34, 52, .06);
}

.model-card:not(.model-card-active) {
  grid-template-columns: 48px minmax(0, 1fr);
}

.model-card-active {
  border-color: #8bbcff;
  background: #ffffff;
}

.model-logo {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--surface-raised);
}

.openai-mark {
  border: 1px solid #9be2c9;
}

.openai-mark::after {
  content: "GPT";
  color: #079669;
  font-size: 13px;
  font-weight: 820;
}

.model-logo-dotted {
  border: 1.5px dashed #aeb9c8;
}

.model-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: 0;
}

.model-card p {
  margin: 5px 0 0;
  color: var(--quiet);
  font-size: 13px;
  font-weight: 670;
}

.model-card span {
  justify-self: end;
  padding: 7px 10px;
  border: 1px solid #a9ebd6;
  border-radius: 999px;
  color: #058760;
  background: #e9fbf4;
  font-size: 12px;
  font-weight: 790;
}

.final-cta {
  display: grid;
  justify-items: center;
  padding: 78px 0 70px;
  text-align: center;
}

.final-cta p {
  max-width: 660px;
  margin: 18px 0 28px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.contact-links a:hover {
  color: var(--blue);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 38px;
  color: var(--quiet);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 28px;
}

.site-footer a:hover {
  color: var(--blue);
}

.policy-page,
.contact-page {
  min-height: calc(100vh - 184px);
  padding: 84px 0;
}

.policy-page {
  max-width: 820px;
}

.policy-page .release-line,
.contact-page .release-line {
  margin-bottom: 18px;
}

.policy-lede,
.contact-page p {
  max-width: 680px;
  margin: 22px 0 0;
  font-size: 19px;
}

.policy-date {
  margin: 16px 0 0;
  color: var(--quiet);
  font-size: 14px;
  font-weight: 700;
}

.policy-page section {
  padding-top: 34px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.policy-page h2 {
  margin: 0;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: 0;
}

.policy-page section p {
  margin: 12px 0 0;
}

.policy-page a,
.contact-page a:not(.button) {
  color: var(--blue);
  font-weight: 700;
}

.contact-page .button {
  margin-top: 32px;
}

.guide-page {
  overflow: hidden;
}

.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(430px, 1.08fr);
  align-items: center;
  gap: 56px;
  padding: 48px 0 36px;
}

.guide-hero-copy h1 {
  max-width: 680px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(46px, 4vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

.guide-lede {
  max-width: 660px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.58;
}

.guide-shortcuts {
  display: grid;
  gap: 14px;
  max-width: 660px;
  margin-top: 30px;
}

.shortcut-card {
  display: grid;
  grid-template-columns: 184px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: var(--shadow-sm);
}

.keycap-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.keycap-row kbd,
.quick-section kbd {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid #c7d1df;
  border-bottom-color: #aeb9c8;
  border-radius: 7px;
  background: linear-gradient(180deg, #ffffff 0%, #eef3f9 100%);
  box-shadow: inset 0 -2px 0 rgba(91, 108, 132, .12), 0 8px 18px rgba(21, 34, 52, .08);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  font-weight: 790;
  line-height: 1;
}

.shortcut-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.22;
  letter-spacing: 0;
}

.shortcut-card p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.guide-note {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 660px;
  margin: 20px 0 0;
  color: var(--quiet);
  font-size: 14px;
  line-height: 1.45;
  font-weight: 650;
}

.guide-note span {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px var(--green-soft);
}

.guide-preview {
  min-width: 0;
  overflow: hidden;
  border: 1px solid #c9c7ba;
  border-radius: 34px;
  background: #e9ebe1;
  box-shadow: 0 26px 70px rgba(57, 57, 48, .20), inset 0 1px 0 rgba(255, 255, 255, .72);
}

.guide-preview-body {
  display: grid;
  gap: 24px;
  width: 100%;
  min-width: 0;
  min-height: 610px;
  padding: 58px 30px 24px;
  background: transparent;
}

.preview-user-group {
  display: grid;
  justify-items: end;
  gap: 16px;
  width: 100%;
  min-width: 0;
}

.preview-user {
  justify-self: end;
  max-width: 280px;
  margin: 0 2px 0 0;
  padding: 17px 22px;
  border-radius: 22px;
  background: #2f86f6;
  color: #ffffff;
  font-size: 24px;
  line-height: 1.22;
  font-weight: 650;
  box-shadow: 0 12px 24px rgba(47, 134, 246, .18);
}

.preview-attachment {
  width: min(100%, 430px);
  min-height: 230px;
  justify-self: end;
  overflow: hidden;
  border-radius: 18px;
  background: #fbf3de;
  box-shadow: 0 10px 22px rgba(74, 70, 54, .08);
}

.attachment-note {
  position: relative;
  min-height: 230px;
  padding: 22px 24px 20px;
  overflow: hidden;
  color: #5f6a72;
  font-size: 15px;
  line-height: 1.55;
}

.attachment-note p {
  margin: 0;
  font-weight: 760;
}

.attachment-note ul {
  display: grid;
  gap: 8px;
  padding-left: 18px;
  margin: 9px 0 0;
}

.attachment-mini-preview {
  position: absolute;
  left: 24px;
  bottom: -10px;
  width: 235px;
  height: 84px;
  border: 1px solid #e1e4ec;
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(63, 64, 60, .11);
}

.attachment-mini-preview span {
  position: absolute;
  display: block;
  border-radius: 999px;
  background: #dfe6f0;
}

.attachment-mini-preview span:nth-child(1) {
  top: 18px;
  left: 18px;
  width: 96px;
  height: 11px;
}

.attachment-mini-preview span:nth-child(2) {
  top: 38px;
  left: 18px;
  width: 72px;
  height: 8px;
}

.attachment-mini-preview span:nth-child(3) {
  top: 25px;
  right: 18px;
  width: 70px;
  height: 44px;
  border-radius: 4px;
  background: #eff5ff;
}

.preview-answer {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  color: #444846;
}

.preview-answer p {
  margin: 0;
  font-size: 23px;
  line-height: 1.55;
  font-weight: 520;
  overflow-wrap: break-word;
}

.preview-answer p + p {
  margin-top: 22px;
}

.preview-composer {
  display: flex;
  align-items: center;
  gap: 12px;
  align-self: end;
  width: 100%;
  min-width: 0;
  min-height: 72px;
  padding: 10px 12px 10px 22px;
  border: 2px solid #d0d2d2;
  border-radius: 32px;
  background: #e1e2e1;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .50);
}

.composer-caret {
  width: 2px;
  height: 35px;
  border-radius: 999px;
  background: #3b8dff;
}

.composer-input {
  flex: 1 1 auto;
  min-width: 0;
  color: #a7aaad;
  font-size: 22px;
  font-weight: 680;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-icon-button {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #5f6161;
}

.model-icon-button svg {
  width: 22px;
  height: 22px;
}

.composer-send {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blue);
  color: #ffffff;
}

.composer-send-disabled {
  width: 50px;
  height: 50px;
  background: #c4c6c7;
  color: #ffffff;
}

.composer-send svg {
  width: 22px;
  height: 22px;
}

.workflow-section {
  padding: 72px 0 78px;
  border-top: 1px solid var(--line);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 34px;
}

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

.workflow-card {
  position: relative;
  min-height: 230px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: var(--shadow-sm);
}

.workflow-index {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--blue);
  color: #ffffff;
  font-size: 14px;
  font-weight: 820;
}

.workflow-card h3 {
  margin: 24px 0 0;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: 0;
}

.workflow-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.flow-steps {
  display: grid;
  gap: 12px;
  padding-left: 22px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.flow-steps li::marker {
  color: var(--blue);
  font-weight: 820;
}

.quick-section {
  padding: 78px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f8fbff 0%, #f2f7fc 100%);
}

.quick-grid {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  align-items: start;
  gap: 72px;
}

.quick-section code,
.faq-section code {
  color: var(--blue);
  font-family: inherit;
  font-weight: 790;
}

.quick-section kbd {
  min-width: 34px;
  height: 32px;
  padding: 0 10px;
  vertical-align: 1px;
}

.quick-actions-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.quick-actions-list article {
  min-height: 130px;
  padding: 22px;
}

.quick-actions-list article:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.quick-actions-list article:nth-child(n + 3) {
  border-top: 1px solid var(--line);
}

.quick-actions-list h3 {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.2;
  letter-spacing: 0;
}

.quick-actions-list p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.48;
}

.settings-guide {
  padding: 78px 0 84px;
}

.guide-text-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
}

.guide-text-block {
  min-width: 0;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.guide-text-block h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
}

.guide-text-block p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.58;
}

.plain-list {
  display: grid;
  gap: 12px;
  padding-left: 20px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.plain-list strong {
  color: var(--ink);
}

.token-usage-list {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.model-copy-list {
  display: grid;
  gap: 18px;
  margin: 24px 0 0;
}

.model-copy-list div {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.model-copy-list dt {
  color: var(--ink);
  font-size: 18px;
  font-weight: 790;
  line-height: 1.2;
}

.model-copy-list dd {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.faq-section {
  padding: 76px 0 84px;
  border-top: 1px solid var(--line);
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 30px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(21, 34, 52, .05);
}

.faq-list summary {
  position: relative;
  display: block;
  min-height: 58px;
  padding: 19px 54px 17px 20px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 760;
  line-height: 1.25;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "";
  position: absolute;
  top: 22px;
  right: 22px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--quiet);
  border-bottom: 2px solid var(--quiet);
  transform: rotate(45deg);
  transition: transform .18s ease;
}

.faq-list details[open] summary::after {
  transform: translateY(4px) rotate(225deg);
}

.faq-list p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.58;
}

.faq-bullet-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 20px 20px 42px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.58;
}

.faq-bullet-list strong {
  color: var(--ink);
}

.guide-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 38px;
  padding: 30px;
  border: 1px solid #bfd7ff;
  border-radius: 8px;
  background: linear-gradient(180deg, #f6faff 0%, #eaf3ff 100%);
  box-shadow: var(--shadow-sm);
}

.guide-cta h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.08;
  letter-spacing: 0;
}

.guide-cta p {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.guide-cta-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  flex: 0 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1160px) {
  .site-header {
    padding: 0 32px;
  }

  .hero,
  .models-grid,
  .guide-hero,
  .quick-grid,
  .guide-text-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 42px;
  }

  .guide-hero,
  .quick-grid {
    gap: 42px;
  }

  .hero h1,
  .hero-subtitle,
  .guide-hero-copy h1,
  .guide-lede {
    max-width: 840px;
  }

  .proof-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 0;
  }

  .proof-item:nth-child(3) {
    border-left: 0;
  }

}

@media (max-width: 860px) {
  .site-header,
  .home-header {
    position: static;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 14px;
    min-height: auto;
    padding: 18px 24px;
  }

  .status-link {
    justify-self: center;
  }

  .home-header .nav-links {
    justify-content: center;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px 22px;
    font-size: 13px;
  }

  .pricing-grid,
  .model-board,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card {
    min-height: 0;
  }

  .workflow-card {
    min-height: 0;
  }

  .pricing-section .section-heading h2 {
    white-space: normal;
  }
}

@media (max-width: 720px) {
  .section-wrap {
    width: min(100% - 32px, 1280px);
  }

  .hero {
    padding-top: 46px;
  }

  .guide-hero {
    padding-top: 34px;
    padding-bottom: 34px;
  }

  .hero h1,
  .guide-hero-copy h1 {
    font-size: 40px;
    line-height: 1.04;
    white-space: normal;
  }

  .pricing-section .section-heading h2 {
    font-size: 36px;
    white-space: normal;
  }

  .hero-subtitle,
  .guide-lede,
  .section-heading p,
  .final-cta p {
    font-size: 16px;
  }

  .guide-lede {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.52;
  }

  .guide-shortcuts {
    gap: 10px;
    margin-top: 22px;
  }

  .hero-trust {
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .button,
  .site-footer,
  .site-footer nav {
    width: 100%;
  }

  .button {
    min-height: 50px;
  }

  .product-visual img {
    aspect-ratio: 4 / 3;
  }

  .shortcut-card {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 14px;
  }

  .keycap-row {
    flex-wrap: wrap;
  }

  .keycap-row kbd,
  .quick-section kbd {
    min-width: 38px;
    height: 34px;
    padding: 0 10px;
    font-size: 14px;
  }

  .shortcut-card h2 {
    font-size: 16px;
  }

  .shortcut-card p {
    font-size: 13px;
    line-height: 1.4;
  }

  .guide-note {
    margin-top: 14px;
    font-size: 13px;
  }

  .guide-preview {
    display: none;
  }

  .proof-strip {
    grid-template-columns: 1fr;
    padding: 22px 0 28px;
  }

  .proof-item {
    padding: 0;
  }

  .proof-item + .proof-item {
    padding-top: 24px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .pricing-section,
  .models-section,
  .workflow-section,
  .quick-section,
  .settings-guide,
  .faq-section,
  .final-cta {
    padding-top: 62px;
    padding-bottom: 62px;
  }

  .workflow-section {
    padding-top: 34px;
  }

  .quick-actions-list {
    grid-template-columns: 1fr;
  }

  .quick-actions-list article:nth-child(odd) {
    border-right: 0;
  }

  .quick-actions-list article:nth-child(n + 2) {
    border-top: 1px solid var(--line);
  }

  .guide-text-block {
    padding: 22px;
  }

  .guide-cta {
    align-items: stretch;
    flex-direction: column;
    padding: 22px;
  }

  .guide-cta-actions {
    width: 100%;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
    gap: 18px;
  }

  .policy-page,
  .contact-page {
    padding: 58px 0;
  }
}