:root {
  --bg: #f4f6fb;
  --bg-deep: #edf2ff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(19, 32, 67, 0.08);
  --line-strong: rgba(91, 124, 250, 0.18);
  --text: #132043;
  --muted: #5d6b8a;
  --primary: #2457ff;
  --primary-strong: #173fcc;
  --accent: #13b79b;
  --warm: #ffb547;
  --danger: #ff6c63;
  --purple: #715cff;
  --shadow: 0 28px 80px rgba(29, 45, 92, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.landing-body {
  background:
    radial-gradient(circle at 0 0, rgba(79, 126, 255, 0.14), transparent 28%),
    radial-gradient(circle at 100% 10%, rgba(19, 183, 155, 0.12), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 52%, var(--bg-deep) 100%);
}

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

.landing-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

 .home-shell {
  padding-top: 18px;
}

.top-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 18px 16px 34px;
  text-align: center;
}

.top-brand-logo {
  width: 155px;
  height: 155px;
  border-radius: 35px;
  box-shadow: 0 22px 46px rgba(15, 23, 42, 0.16);
}

.top-brand-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.top-brand-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.15;
  color: #38a3ff;
}

.top-brand-subtitle {
  font-size: 36px;
  font-weight: 500;
  color: #6f7d95;
  line-height: 1.5;
}


.hero {
  position: relative;
  overflow: hidden;
  padding: 32px 24px 48px;
  text-align: center;
}

.hero-brand {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.hero-logo {
  width: 92px;
  height: 92px;
  border-radius: 26px;
  box-shadow: 0 20px 52px rgba(16, 27, 58, 0.18);
}

.hero-brand-name {
  font-size: clamp(24px, 2.8vw, 36px);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #2457ff 0%, #3f7cff 42%, #13b79b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-glow {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  opacity: 0.6;
}

.hero-glow-left {
  left: -130px;
  top: 10px;
  background: rgba(36, 87, 255, 0.18);
}

.hero-glow-right {
  right: -120px;
  top: 42px;
  background: rgba(19, 183, 155, 0.18);
}

.eyebrow,
.section-kicker,
.quickstart-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 22px;
  padding: 10px 18px;
  border: 1px solid rgba(36, 87, 255, 0.12);
  color: var(--primary-strong);
  background: rgba(36, 87, 255, 0.06);
}

.hero h1 {
  margin: 0;
  font-size: clamp(46px, 6vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.06em;
}

.hero-lead {
  max-width: 860px;
  margin: 24px auto 12px;
  font-size: clamp(20px, 2.2vw, 29px);
  line-height: 1.6;
  color: #334e78;
}

.hero-sub,
.feature-card p,
.metric-card span,
.model-card p,
.section-head p,
.docs-card p,
.content-card p,
.content-card li {
  color: var(--muted);
  line-height: 1.8;
}

.hero-sub {
  max-width: 860px;
  margin: 0 auto;
  font-size: clamp(16px, 1.6vw, 20px);
}

.hero-actions,
.quickstart-actions,
.docs-actions,
.footer-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.secondary-outline-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.primary-btn,
.secondary-outline-btn {
  min-width: 220px;
  padding: 18px 28px;
  font-size: 18px;
}

.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #2457ff 0%, #13b79b 100%);
  box-shadow: 0 18px 40px rgba(36, 87, 255, 0.26);
}

.secondary-outline-btn {
  border: 1px solid rgba(36, 87, 255, 0.16);
  background: rgba(255, 255, 255, 0.88);
  color: var(--primary-strong);
}

.secondary-btn,
.ghost-btn {
  padding: 14px 22px;
  font-size: 16px;
}

.secondary-btn {
  color: #fff;
  background: linear-gradient(135deg, #2457ff 0%, #4f8cff 100%);
  box-shadow: 0 12px 28px rgba(36, 87, 255, 0.2);
}

.ghost-btn {
  border: 1px solid rgba(36, 87, 255, 0.14);
  background: rgba(255, 255, 255, 0.94);
  color: var(--primary-strong);
}

.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover,
.secondary-outline-btn:hover {
  transform: translateY(-2px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.metric-card,
.feature-card,
.model-card,
.quickstart-card,
.docs-card,
.content-card {
  box-shadow: var(--shadow);
}

.metric-card {
  padding: 22px 20px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 22px;
  text-align: left;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  box-shadow: 0 16px 40px rgba(18, 32, 67, 0.05);
}

.metric-card-link {
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.metric-card-link:hover {
  transform: translateY(-3px);
  border-color: rgba(36, 87, 255, 0.18);
  box-shadow: 0 18px 42px rgba(18, 32, 67, 0.08);
}

.metric-card strong {
  display: block;
  font-size: 18px;
}

.metric-card span {
  display: block;
  margin-top: 8px;
  font-size: 14px;
}

.features {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.feature-card {
  min-height: 226px;
  padding: 30px 22px 28px;
  border: 1px solid;
  border-radius: 26px;
  text-align: left;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 20px;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.feature-card h2 {
  margin: 0 0 14px;
  font-size: 18px;
  line-height: 1.5;
}

.feature-card p {
  margin: 0;
  font-size: 14px;
}

.feature-blue {
  background: linear-gradient(180deg, rgba(224, 235, 255, 0.82), rgba(248, 250, 255, 0.96));
  border-color: rgba(111, 145, 255, 0.26);
}

.feature-blue .feature-icon {
  background: linear-gradient(135deg, #2457ff, #4f8cff);
}

.feature-blue h2,
.feature-blue p {
  color: #21437e;
}

.feature-green {
  background: linear-gradient(180deg, rgba(221, 252, 242, 0.86), rgba(245, 255, 251, 0.97));
  border-color: rgba(58, 197, 156, 0.28);
}

.feature-green .feature-icon {
  background: linear-gradient(135deg, #13b79b, #45d7a1);
}

.feature-green h2,
.feature-green p {
  color: #0f6d62;
}

.feature-yellow {
  background: linear-gradient(180deg, rgba(255, 243, 213, 0.92), rgba(255, 249, 236, 0.98));
  border-color: rgba(255, 181, 71, 0.3);
}

.feature-yellow .feature-icon {
  background: linear-gradient(135deg, #ffb547, #ffd36f);
}

.feature-yellow h2,
.feature-yellow p {
  color: #91560c;
}

.feature-red {
  background: linear-gradient(180deg, rgba(255, 226, 224, 0.9), rgba(255, 245, 244, 0.98));
  border-color: rgba(255, 108, 99, 0.28);
}

.feature-red .feature-icon {
  background: linear-gradient(135deg, #ff6c63, #ff8b5c);
}

.feature-red h2,
.feature-red p {
  color: #a33a32;
}

.feature-purple {
  background: linear-gradient(180deg, rgba(232, 229, 255, 0.88), rgba(248, 247, 255, 0.98));
  border-color: rgba(113, 92, 255, 0.24);
}

.feature-purple .feature-icon {
  background: linear-gradient(135deg, #715cff, #8c79ff);
}

.feature-purple h2,
.feature-purple p {
  color: #4d37bf;
}

.audience {
  padding: 64px 0 6px;
  text-align: center;
}

.audience h2 {
  margin: 0 0 24px;
  font-size: clamp(30px, 3.2vw, 48px);
  letter-spacing: -0.04em;
}

.audience-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.audience-tags span {
  padding: 14px 24px;
  border: 1px solid rgba(115, 132, 173, 0.15);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
  font-size: 16px;
  font-weight: 700;
  color: #4a5c82;
}

.quickstart {
  padding: 48px 0 12px;
}

.quickstart-card,
.docs-card,
.content-card {
  padding: 42px 28px;
  border: 1px solid rgba(36, 87, 255, 0.12);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(243, 247, 255, 0.96));
}

.quickstart-card {
  text-align: center;
}

.quickstart-badge {
  padding: 8px 14px;
  background: rgba(19, 183, 155, 0.08);
  color: #0c7a6b;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quickstart-card h2 {
  margin: 16px 0 12px;
  font-size: clamp(32px, 3vw, 48px);
}

.quickstart-card p,
.docs-card p,
.content-card p {
  margin: 0;
  font-size: 18px;
}

.endpoint-box {
  width: min(100%, 620px);
  margin: 28px auto 0;
  padding: 18px 24px;
  border: 1px solid rgba(36, 87, 255, 0.16);
  border-radius: 18px;
  background: #fff;
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 800;
  color: var(--primary-strong);
}

.code-panel,
.code-block {
  overflow-x: auto;
  border: 1px solid rgba(19, 32, 67, 0.08);
  border-radius: 22px;
  background: #0f172a;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
  color: #dbeafe;
}

.code-panel {
  width: min(100%, 760px);
  margin: 22px auto 0;
  text-align: left;
}

.code-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  font-weight: 700;
  color: rgba(226, 232, 240, 0.9);
}

.code-panel pre,
.code-block {
  margin: 0;
}

.code-panel pre {
  padding: 20px 18px 22px;
}

.code-block {
  padding: 18px;
}

.code-panel code,
.code-block code {
  font-family: "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  font-size: 14px;
  line-height: 1.8;
  color: #dbeafe;
}

.models {
  padding: 76px 0 12px;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 28px;
  text-align: center;
}

.section-kicker {
  margin: 0 0 8px;
  padding: 8px 12px;
  color: var(--primary);
  background: rgba(36, 87, 255, 0.08);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.section-head h2,
.docs-card h2,
.content-card h1 {
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  letter-spacing: -0.05em;
}

.section-head p:last-child {
  margin: 14px 0 0;
  font-size: 18px;
}

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

.model-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.05);
}

.model-logo,
.model-mark {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-radius: 18px;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}

.model-logo img {
  display: block;
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.model-openai img,
.model-gemini img,
.model-claude img,
.model-deepseek img,
.model-qwen img {
  width: 34px;
  height: 34px;
}

.model-llama img {
  width: 38px;
  height: 38px;
}

.model-card h3 {
  margin: 18px 0 10px;
  font-size: 24px;
}

.model-card p {
  margin: 0;
  font-size: 15px;
}

.model-openai {
  background: linear-gradient(135deg, #132043, #334155);
}

.model-gemini {
  background: linear-gradient(135deg, #2457ff, #67e8f9);
}

.model-claude {
  background: linear-gradient(135deg, #e08c24, #ffb547);
}

.model-deepseek {
  background: linear-gradient(135deg, #715cff, #2457ff);
}

.model-llama {
  background: linear-gradient(135deg, #13b79b, #4ade80);
}

.model-qwen {
  background: linear-gradient(135deg, #ef4444, #f97316);
}

.docs {
  padding: 72px 0 12px;
}

.docs-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.docs-card h2 {
  font-size: clamp(28px, 3vw, 42px);
}

.docs-actions {
  margin-top: 0;
  flex-shrink: 0;
}

.docs-shell,
.about-shell {
  padding-top: 156px;
}

.content-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

.docs-page-body {
  background:
    radial-gradient(circle at 12% 8%, rgba(36, 87, 255, 0.18), transparent 24%),
    radial-gradient(circle at 88% 12%, rgba(19, 183, 155, 0.16), transparent 20%),
    linear-gradient(180deg, #fbfdff 0%, #eef3ff 52%, #e8eefc 100%);
}

.tutorial-shell {
  width: min(1320px, calc(100% - 32px));
}

.tutorial-hero {
  position: relative;
  overflow: hidden;
  padding: 52px 40px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(240, 246, 255, 0.96)),
    radial-gradient(circle at top right, rgba(36, 87, 255, 0.12), transparent 32%);
}

.tutorial-hero-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 30px;
}

.tutorial-home-link,
.tutorial-status-badge,
.tutorial-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 800;
}

.tutorial-home-link {
  min-width: 220px;
  padding: 18px 28px;
  border: 1px solid rgba(36, 87, 255, 0.16);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 40px rgba(36, 87, 255, 0.12);
  color: var(--primary-strong);
  font-size: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.tutorial-home-link:hover {
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 22px 44px rgba(36, 87, 255, 0.18);
  transform: translateY(-2px);
}

.tutorial-status-badge {
  padding: 12px 18px;
  border: 1px solid rgba(36, 87, 255, 0.12);
  background: rgba(36, 87, 255, 0.08);
  color: var(--primary-strong);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.tutorial-hero-copy {
  max-width: 860px;
}

.tutorial-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.tutorial-pill-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.tutorial-pill {
  padding: 10px 16px;
  border: 1px solid rgba(36, 87, 255, 0.12);
  background: rgba(255, 255, 255, 0.86);
  color: #315189;
  font-size: 14px;
}

.tutorial-summary-grid,
.tutorial-info-grid,
.tutorial-sdk-grid {
  display: grid;
  gap: 16px;
}

.tutorial-summary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 32px;
}

.tutorial-summary-card,
.tutorial-info-box,
.tutorial-sidebar-card,
.tutorial-sdk-card,
.faq-item {
  border: 1px solid rgba(36, 87, 255, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px rgba(19, 32, 67, 0.06);
}

.tutorial-summary-card {
  padding: 22px 20px;
}

.tutorial-summary-card span,
.tutorial-info-label,
.sidebar-kicker {
  display: block;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
}

.tutorial-summary-card strong,
.tutorial-info-box strong {
  display: block;
  margin-top: 10px;
  font-size: 20px;
  line-height: 1.5;
}

.tutorial-flow-grid,
.tutorial-mini-grid,
.tutorial-client-grid,
.tutorial-common-grid,
.tutorial-endpoint-list {
  display: grid;
  gap: 16px;
}

.tutorial-flow-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.tutorial-flow-card,
.tutorial-mini-card,
.tutorial-client-card,
.tutorial-endpoint-card,
.tutorial-common-item {
  padding: 22px 20px;
  border: 1px solid rgba(36, 87, 255, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px rgba(19, 32, 67, 0.06);
}

.tutorial-flow-card span {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, #2457ff, #13b79b);
  color: #fff;
  font-size: 15px;
}

.tutorial-flow-card p,
.tutorial-mini-card p,
.tutorial-client-card p,
.tutorial-endpoint-card span,
.tutorial-common-item span,
.tutorial-support-copy p,
.tutorial-support-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.tutorial-mini-grid,
.tutorial-client-grid,
.tutorial-common-grid,
.tutorial-endpoint-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tutorial-endpoint-card strong,
.tutorial-common-item strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.6;
  word-break: break-word;
}

.tutorial-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin-top: 24px;
}

.tutorial-sidebar {
  position: sticky;
  top: 24px;
  display: grid;
  gap: 18px;
}

.tutorial-sidebar-card {
  padding: 22px 20px;
}

.tutorial-nav,
.side-link-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.tutorial-nav a,
.side-link-list a {
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  color: #315189;
  background: rgba(36, 87, 255, 0.06);
  transition: background 0.2s ease, transform 0.2s ease;
}

.tutorial-nav a:hover,
.side-link-list a:hover {
  background: rgba(36, 87, 255, 0.12);
  transform: translateX(2px);
}

.tutorial-content {
  display: grid;
  gap: 20px;
}

.tutorial-card {
  padding: 34px 30px;
}

.tutorial-card h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: -0.05em;
}

.tutorial-card h3,
.faq-item h3 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.45;
}

.tutorial-card-head {
  margin-bottom: 18px;
}

.tutorial-card-head .section-kicker {
  margin-bottom: 12px;
}

.tutorial-support-card {
  padding: 44px 34px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 245, 255, 0.98)),
    radial-gradient(circle at top center, rgba(36, 87, 255, 0.12), transparent 42%);
}

.tutorial-support-head {
  margin-bottom: 14px;
}

.tutorial-support-copy {
  display: grid;
  gap: 6px;
}

.tutorial-support-copy p {
  font-size: 19px;
}

.tutorial-support-actions {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.tutorial-support-btn {
  width: min(100%, 620px);
  min-width: 0;
  padding: 20px 36px;
  font-size: 20px;
  letter-spacing: 0.08em;
  border-radius: 999px;
}

.tutorial-support-note-wrap {
  display: flex;
  justify-content: center;
  margin-top: 68px;
}

.tutorial-support-note {
  width: min(100%, 620px);
  max-width: 620px;
  margin: 0;
  padding: 0 12px;
  font-size: 15px;
  line-height: 2;
  text-align: center;
}

.tutorial-list {
  margin-top: 14px;
  padding-left: 18px;
}

.tutorial-list li {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.tutorial-steps-inline {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.tutorial-step-chip {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(36, 87, 255, 0.1);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.96), rgba(239, 245, 255, 0.96));
  font-size: 16px;
  font-weight: 700;
  color: #29477d;
}

.tutorial-step-chip span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2457ff, #13b79b);
  color: #fff;
  font-weight: 800;
}

.tutorial-code-panel {
  width: 100%;
  margin-top: 22px;
}

.tutorial-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}

.tutorial-tip {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(19, 183, 155, 0.14);
  border-radius: 18px;
  background: rgba(19, 183, 155, 0.08);
  color: #1b5f57;
  font-size: 15px;
  line-height: 1.8;
}

.tutorial-info-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 16px 0 4px;
}

.tutorial-info-box {
  padding: 22px 20px;
}

.tutorial-sdk-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 12px;
}

.tutorial-sdk-card {
  padding: 22px;
}

.tutorial-sdk-card .code-block {
  margin-top: 16px;
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}

.faq-item {
  padding: 22px 20px;
}

.faq-item p {
  margin: 0;
  font-size: 16px;
}

@media (max-width: 1100px) {
  .hero-metrics,
  .features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .docs-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .docs-actions {
    justify-content: flex-start;
  }

  .tutorial-layout {
    grid-template-columns: 1fr;
  }

  .tutorial-sidebar {
    position: static;
  }

  .tutorial-summary-grid,
  .tutorial-sdk-grid,
  .tutorial-flow-grid,
  .tutorial-mini-grid,
  .tutorial-client-grid,
  .tutorial-common-grid,
  .tutorial-endpoint-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .landing-shell {
    width: min(100% - 20px, 1200px);
    padding-top: 18px;
  }

  .home-shell {
    padding-top: 8px;
  }

  .top-brand {
    padding: 0 0 18px;
    gap: 12px;
  }

  .top-brand-logo {
  width: 155px;
  height: 155px;
  border-radius: 35px;
  box-shadow: 0 22px 46px rgba(15, 23, 42, 0.16);
}

  .top-brand-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.15;
  color: #38a3ff;
}

  .top-brand-subtitle {
  font-size: 36px;
  font-weight: 500;
  color: #6f7d95;
  line-height: 1.5;
}

  .hero {\n    padding: 28px 0 28px;\n  }

  .hero-actions,
  .quickstart-actions,
  .docs-actions,
  .footer-actions {
    flex-direction: column;
  }

  .primary-btn,
  .secondary-outline-btn,
  .secondary-btn,
  .ghost-btn {
    width: 100%;
  }

  .hero-metrics,
  .features,
  .model-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .quickstart-card,
  .model-card,
  .docs-card,
  .content-card {
    border-radius: 22px;
  }

  .quickstart-card,
  .docs-card,
  .content-card {
    padding: 28px 20px;
  }

  .audience-tags span {
    width: 100%;
    text-align: center;
  }

  .endpoint-box {
    font-size: 18px;
    word-break: break-all;
  }

  .code-panel-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .docs-actions {
    width: 100%;
  }

  .docs-shell,
  .about-shell {
    padding-top: 132px;
  }

  .tutorial-shell {
    width: min(100% - 16px, 1320px);
  }

  .tutorial-hero,
  .tutorial-card,
  .tutorial-sidebar-card,
  .tutorial-sdk-card,
  .faq-item {
    padding: 24px 18px;
  }

  .tutorial-summary-grid,
  .tutorial-info-grid,
  .tutorial-sdk-grid,
  .tutorial-flow-grid,
  .tutorial-mini-grid,
  .tutorial-client-grid,
  .tutorial-common-grid,
  .tutorial-endpoint-list {
    grid-template-columns: 1fr;
  }

  .tutorial-hero-topline,
  .tutorial-hero-actions,
  .tutorial-action-row {
    flex-direction: column;
  }

  .tutorial-home-link {
    width: 100%;
  }

  .tutorial-nav a,
  .side-link-list a {
    font-size: 14px;
  }
}