:root {
  color-scheme: light;
  --paper: #f8faf7;
  --paper-2: #eef1ec;
  --card: #ffffff;
  --ink: #241416;
  --ink-soft: #55484b;
  --muted: #766e70;
  --line: #dde0da;
  --yellow: #fae261;
  --cta-yellow: #ffdd42;
  --yellow-soft: #fff6bf;
  --blue: #2563eb;
  --blue-soft: #dce9ff;
  --green: #0fa968;
  --green-soft: #d9f8e8;
  --red: #ff2f2f;
  --pink-soft: #ffe4f1;
  --shadow: 0 22px 54px rgba(36, 20, 22, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  overflow-x: clip;
}

html.home-restoring-scroll {
  scroll-behavior: auto;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(36, 20, 22, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 20, 22, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
  font-family:
    "Avenir Next", Avenir, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
  overflow-x: clip;
}

html[lang="zh-CN"] body {
  font-family:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC",
    "Microsoft YaHei", "Avenir Next", Avenir, ui-sans-serif, system-ui, sans-serif;
}

main,
section,
article,
div {
  min-width: 0;
}

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

a,
button,
summary {
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  min-height: 76px;
  width: 100%;
  padding: 0 max(24px, calc((100% - 1220px) / 2));
  background: rgba(248, 250, 247, 0.94);
  border-bottom: 1px solid rgba(36, 20, 22, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  font-family: "Avenir Next", Avenir, Arial, Helvetica, sans-serif;
  font-size: 25px;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.brand b {
  color: var(--blue);
}

.brand-mark {
  display: block;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
}

.site-nav,
.header-actions,
.hero-actions,
.footer-links {
  display: flex;
  align-items: center;
}

.site-nav {
  justify-self: start;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 800;
}

.site-nav a,
.language-link,
.login-link,
.nav-cta,
.button,
.quota-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  width: fit-content;
  border-radius: 999px;
  white-space: nowrap;
}

.site-nav a,
.language-link,
.login-link {
  padding: 0 12px;
}

.site-nav a:hover,
.language-link:hover,
.login-link:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.8);
}

.site-nav .quota-nav {
  color: #7a6100;
  background: var(--yellow-soft);
  border: 1px solid rgba(210, 177, 0, 0.28);
}

.header-actions {
  justify-self: end;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 800;
}

.language-link {
  min-height: 34px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(221, 224, 218, 0.92);
}

.login-link {
  min-height: 34px;
}

.nav-cta,
.button {
  border: 1px solid transparent;
  font-weight: 900;
}

.nav-cta {
  min-height: 38px;
  padding: 0 17px;
  color: var(--ink);
  background: var(--cta-yellow);
  box-shadow: 0 5px 0 rgba(36, 20, 22, 0.12);
}

.button {
  min-height: 48px;
  padding: 0 22px;
  font-size: 15px;
}

.button-icon {
  display: block;
  width: 30px;
  height: 30px;
}

.button.primary {
  color: var(--ink);
  background: var(--cta-yellow);
  box-shadow: 0 8px 0 rgba(36, 20, 22, 0.1);
}

.button.primary:hover,
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 9px 0 rgba(36, 20, 22, 0.12);
}

.hero,
.proof-strip,
.section-panel,
.review-section,
.quota-section,
.faq-section,
.site-footer,
.policy-wrap {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(420px, 0.82fr) minmax(630px, 1.18fr);
  gap: 44px;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: 62px 0 66px;
}

.hero-copy {
  transform: translateY(-34px);
}

.kicker,
.label,
.eyebrow {
  margin: 0;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.2;
  font-weight: 800;
}

.hero .kicker {
  font-family: inherit;
  font-size: 13px;
  line-height: 1.3;
  font-weight: 700;
}

.hero h1,
.section-copy h2,
.quota-section h2,
.faq-section h2,
.policy-wrap h1 {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
}

.hero h1 {
  max-width: 560px;
  margin-top: 30px;
  font-size: 66px;
  line-height: 1.04;
  font-weight: 950;
}

.headline-line {
  display: block;
}

html[lang="en"] .hero h1 {
  font-size: 58px;
  line-height: 1.03;
}

html[lang="zh-CN"] .brand,
html[lang="zh-CN"] .button,
html[lang="zh-CN"] .nav-cta,
html[lang="zh-CN"] .site-nav,
html[lang="zh-CN"] .header-actions,
html[lang="zh-CN"] .quota-hint,
html[lang="zh-CN"] .hero-steps,
html[lang="zh-CN"] .saved-row,
html[lang="zh-CN"] .panel-tabs span,
html[lang="zh-CN"] .feature-card span,
html[lang="zh-CN"] .footer-links {
  font-weight: 700;
}

html[lang="zh-CN"] .hero h1 {
  max-width: 560px;
  font-size: 68px;
  line-height: 1.07;
  font-weight: 800;
}

html[lang="zh-CN"] .lead,
html[lang="zh-CN"] .proof-strip span,
html[lang="zh-CN"] .feature-card p,
html[lang="zh-CN"] .review-note p:not(.label),
html[lang="zh-CN"] .section-copy p:not(.label),
html[lang="zh-CN"] .quota-section p:not(.label),
html[lang="zh-CN"] .faq-list p {
  font-weight: 500;
}

html[lang="zh-CN"] .proof-strip b,
html[lang="zh-CN"] .section-copy h2,
html[lang="zh-CN"] .quota-section h2,
html[lang="zh-CN"] .faq-section h2,
html[lang="zh-CN"] .feature-card h3,
html[lang="zh-CN"] .review-note h3,
html[lang="zh-CN"] .faq-list summary {
  font-weight: 760;
}

.lead {
  max-width: 520px;
  margin: 40px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.7;
  font-weight: 600;
}

.hero-actions {
  display: grid;
  justify-items: start;
  gap: 27px;
  margin-top: 40px;
}

.hero-actions .button.primary {
  gap: 14px;
  min-width: 310px;
  min-height: 72px;
  padding: 0 28px;
  border-radius: 12px;
  font-size: 18px;
  box-shadow: 0 8px 0 rgba(36, 20, 22, 0.09);
}

.quota-hint {
  gap: 8px;
  min-height: 24px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 13px;
  font-weight: 700;
}

.quota-hint svg,
.hero-steps svg,
.product-demo svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.quota-hint svg {
  width: 21px;
  height: 21px;
}

.quota-hint b {
  color: var(--blue);
}

.hero-steps {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 520px;
  max-width: 520px;
  margin: 46px 0 0;
  padding: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.2;
  font-weight: 800;
  list-style: none;
}

.hero-steps li {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.hero-steps li > svg {
  width: 25px;
  height: 25px;
  color: var(--blue);
}

.hero-steps li:nth-child(3) > svg {
  color: #3977df;
}

.hero-steps li:nth-child(5) > svg {
  color: var(--green);
}

.hero-steps .step-arrow {
  flex: 0 0 auto;
  color: #aaa5a4;
}

.hero-steps .step-arrow svg {
  width: 17px;
  height: 17px;
  color: inherit;
}

html[lang="en"] .hero-steps {
  gap: 7px;
  font-size: 11px;
}

.product-demo {
  position: relative;
  min-height: 630px;
  overflow: visible;
  transform: translateY(-15px);
}

.youtube-preview {
  position: absolute;
  left: -42px;
  top: 56px;
  z-index: 1;
  width: 315px;
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(36, 20, 22, 0.1);
  border-radius: 20px;
  box-shadow: 0 18px 36px rgba(36, 20, 22, 0.09);
  opacity: 0.93;
}

.youtube-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.logtuber-panel {
  position: absolute;
  right: -50px;
  top: 0;
  z-index: 2;
  display: grid;
  grid-template-rows: auto auto auto auto auto;
  gap: 14px;
  width: 530px;
  min-height: 630px;
  padding: 24px;
  background: #fff;
  border: 1px solid rgba(36, 20, 22, 0.12);
  border-radius: 24px;
  box-shadow: 0 28px 56px rgba(36, 20, 22, 0.14);
}

mark {
  color: var(--ink);
  background: var(--yellow);
  border-radius: 5px;
  padding: 0 4px;
}

.desktop-break {
  display: block;
}

.panel-header,
.panel-brand,
.panel-tools,
.panel-card-heading,
.saved-row,
.panel-tabs {
  display: flex;
  align-items: center;
}

.panel-header {
  justify-content: space-between;
  gap: 12px;
}

.panel-brand {
  gap: 10px;
  font-size: 22px;
  line-height: 1;
}

.panel-brand img {
  width: 44px;
  height: 44px;
}

.panel-brand b {
  display: block;
  font-weight: 900;
}

.panel-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  font-weight: 700;
}

.panel-status i {
  width: 9px;
  height: 9px;
  background: var(--green);
  border-radius: 999px;
  box-shadow: 0 0 0 3px var(--green-soft);
}

.panel-tools {
  gap: 16px;
}

.panel-tools > svg {
  width: 24px;
  height: 24px;
  color: var(--muted);
}

.panel-mode {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  color: #0d4f35;
  background: var(--green-soft);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.caption-panel-card,
.ai-panel-card {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.caption-panel-card {
  background: #fff;
}

.panel-card-heading {
  justify-content: space-between;
  gap: 14px;
}

.panel-card-heading > svg {
  width: 21px;
  height: 21px;
  color: var(--muted);
}

.caption-panel-card h2 {
  margin: 18px 0 0;
  font-size: 28px;
  line-height: 1.35;
  font-weight: 850;
}

.ai-panel-card p:not(.label) {
  margin: 18px 0 0;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.55;
  font-weight: 650;
}

html[lang="en"] .ai-panel-card p:not(.label) {
  font-size: 17px;
  line-height: 1.5;
}

.saved-row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 22px;
  gap: 12px;
  min-height: 70px;
  padding: 14px 18px;
  color: #087149;
  background: #eefaf4;
  border: 1px solid #c5ead7;
  border-radius: 14px;
  font-size: 16px;
  line-height: 1.35;
  font-weight: 850;
}

.saved-row svg {
  width: 25px;
  height: 25px;
}

.saved-row .saved-arrow {
  width: 21px;
  height: 21px;
}

.panel-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  min-height: 80px;
  padding: 14px 8px 4px;
  border-top: 1px solid var(--line);
}

.panel-tabs span {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 800;
}

.panel-tabs span svg {
  width: 24px;
  height: 24px;
}

.panel-tabs span.active {
  color: var(--blue);
}

.note-actions span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  color: var(--ink-soft);
  background: var(--paper-2);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 850;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.proof-strip p {
  display: grid;
  gap: 5px;
  min-height: 88px;
  margin: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.proof-strip p:last-child {
  border-right: 0;
}

.proof-strip b {
  font-size: 15px;
  line-height: 1.2;
}

.proof-strip span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
  font-weight: 650;
}

.section-panel,
.review-section,
.quota-section,
.faq-section {
  margin-top: 74px;
}

.section-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 34px;
  align-items: stretch;
}

.section-copy {
  align-self: center;
}

.section-copy h2,
.quota-section h2,
.faq-section h2 {
  margin-top: 12px;
  font-size: 42px;
  line-height: 1.06;
  font-weight: 950;
}

.section-copy p:not(.label),
.quota-section p:not(.label),
.policy-wrap p,
.policy-wrap li {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.feature-card {
  min-height: 260px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.feature-card span {
  color: var(--blue);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  font-weight: 950;
}

.feature-card h3 {
  margin: 28px 0 12px;
  font-size: 23px;
  line-height: 1.12;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.58;
  font-weight: 650;
}

.review-section {
  display: grid;
  grid-template-columns: minmax(460px, 1.08fr) minmax(0, 0.92fr);
  gap: 42px;
  align-items: center;
  padding: 48px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
}

.review-mock {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  min-height: 320px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.review-sidebar {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 20px;
  background: #f2f4ef;
  border-right: 1px solid var(--line);
}

.review-sidebar b {
  font-size: 14px;
}

.review-sidebar span {
  height: 36px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.review-sidebar span:nth-child(3) {
  background: var(--yellow-soft);
}

.review-note {
  align-self: center;
  margin: 28px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 16px 30px rgba(36, 20, 22, 0.08);
}

.review-note h3 {
  margin: 12px 0 10px;
  font-size: 28px;
  line-height: 1.1;
}

.review-note p:not(.label) {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 650;
}

.note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.quota-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 42px;
  background: var(--yellow-soft);
  border: 1px solid rgba(210, 177, 0, 0.34);
  border-radius: 22px;
}

.quota-section h2 {
  max-width: 760px;
}

.quota-section p:not(.label) {
  max-width: 760px;
  margin-bottom: 0;
}

.faq-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 38px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 20px;
  font-size: 16px;
  line-height: 1.35;
  font-weight: 900;
}

.faq-list p {
  margin: 0;
  padding: 0 20px 18px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
  font-weight: 600;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 34px;
  align-items: end;
  padding: 72px 0 44px;
  color: var(--muted);
}

.footer-brand {
  font-size: 24px;
}

.site-footer p {
  max-width: 430px;
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 650;
}

.footer-links {
  flex-wrap: wrap;
  gap: 18px;
  font-size: 12px;
  font-weight: 850;
}

.footer-links a:hover {
  color: var(--ink);
}

.qr-block {
  display: grid;
  justify-items: center;
  gap: 5px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.qr-block img {
  display: block;
  width: 86px;
  height: 86px;
}

.qr-block span,
.qr-block small {
  font-size: 10px;
  line-height: 1.25;
  font-weight: 850;
}

.document-page {
  background:
    linear-gradient(rgba(36, 20, 22, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 20, 22, 0.018) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
}

.policy-wrap {
  max-width: 820px;
  padding: 70px 0 92px;
}

.policy-wrap h1 {
  max-width: 720px;
  margin-top: 14px;
  font-size: 54px;
  line-height: 1.04;
  font-weight: 950;
}

.updated {
  margin-top: 18px;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  font-weight: 800;
}

.policy-wrap section {
  margin-top: 0;
  padding: 30px 0;
  border-bottom: 1px solid rgba(36, 20, 22, 0.12);
}

.policy-wrap h2 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 900;
}

.policy-wrap p {
  margin: 0;
}

.policy-wrap p + p {
  margin-top: 12px;
}

.policy-wrap ul {
  margin: 0;
  padding-left: 22px;
}

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

.policy-wrap a {
  color: var(--blue);
  font-weight: 900;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .hero,
  .section-panel,
  .review-section,
  .faq-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .hero-copy,
  .product-demo {
    transform: none;
  }

  .desktop-break {
    display: none;
  }

  .product-demo {
    width: min(720px, 100%);
    justify-self: center;
  }

  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .review-section {
    padding: 34px;
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .site-nav {
    display: none;
  }

  .header-actions {
    gap: 7px;
  }

  .login-link {
    display: none;
  }

  .hero h1 {
    font-size: 52px;
  }

  html[lang="zh-CN"] .hero h1 {
    font-size: 52px;
  }

  .youtube-preview {
    left: 0;
  }

  .logtuber-panel {
    right: 0;
  }

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

  .proof-strip p:nth-child(2) {
    border-right: 0;
  }

  .proof-strip p:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .review-mock {
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .quota-section {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 720px) {
  .hero,
  .proof-strip,
  .section-panel,
  .review-section,
  .quota-section,
  .faq-section,
  .site-footer,
  .policy-wrap {
    width: min(100% - 28px, 1220px);
  }

  .site-header {
    min-height: 62px;
    padding: 0 14px;
  }

  .brand {
    gap: 8px;
    font-size: 20px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .language-link {
    display: none;
  }

  .nav-cta {
    min-height: 36px;
    padding: 0 13px;
    font-size: 12px;
  }

  .hero {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 34px 0 42px;
  }

  .hero-copy {
    display: contents;
  }

  .kicker {
    order: 1;
  }

  .hero h1 {
    order: 2;
    margin-top: 0;
    font-size: 40px;
    line-height: 1.06;
  }

  html[lang="zh-CN"] .hero h1 {
    font-size: 38px;
    line-height: 1.12;
  }

  .lead {
    order: 3;
    margin-top: -4px;
    font-size: 15px;
    line-height: 1.58;
  }

  .hero-actions {
    order: 4;
    align-items: stretch;
    margin-top: 0;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-actions .button.primary {
    min-height: 58px;
    font-size: 16px;
  }

  .button-icon {
    width: 27px;
    height: 27px;
  }

  .quota-hint {
    justify-content: flex-start;
    max-width: 100%;
    font-size: 12px;
    white-space: normal;
  }

  .product-demo {
    order: 6;
    min-height: 520px;
  }

  .hero-steps {
    order: 5;
    justify-content: space-between;
    gap: 5px;
    width: 100%;
    margin-top: 0;
    font-size: 11px;
  }

  html[lang="en"] .hero-steps {
    font-size: 9px;
  }

  .hero-steps li {
    gap: 5px;
  }

  .hero-steps li > svg {
    width: 22px;
    height: 22px;
  }

  .hero-steps .step-arrow svg {
    width: 13px;
    height: 13px;
  }

  .youtube-preview {
    left: -8px;
    top: 68px;
    width: 49%;
    border-radius: 15px;
    opacity: 0.82;
  }

  .logtuber-panel {
    width: 86%;
    min-height: 510px;
    gap: 10px;
    padding: 14px;
    border-radius: 18px;
    box-shadow: 0 20px 40px rgba(36, 20, 22, 0.14);
  }

  .panel-brand {
    gap: 8px;
    font-size: 16px;
  }

  .panel-brand img {
    width: 32px;
    height: 32px;
  }

  .panel-status {
    gap: 5px;
    margin-top: 5px;
    font-size: 9px;
  }

  .panel-status i {
    width: 7px;
    height: 7px;
  }

  .panel-tools {
    gap: 9px;
  }

  .panel-mode {
    min-height: 27px;
    padding: 0 8px;
    font-size: 10px;
  }

  .panel-tools > svg {
    width: 19px;
    height: 19px;
  }

  .caption-panel-card,
  .ai-panel-card {
    padding: 13px 14px;
    border-radius: 12px;
  }

  .panel-card-heading > svg {
    width: 18px;
    height: 18px;
  }

  .caption-panel-card h2 {
    margin-top: 12px;
    font-size: 19px;
    line-height: 1.32;
  }

  .ai-panel-card p:not(.label),
  html[lang="en"] .ai-panel-card p:not(.label) {
    margin-top: 11px;
    font-size: 13px;
    line-height: 1.45;
  }

  .saved-row {
    grid-template-columns: 21px minmax(0, 1fr) 17px;
    gap: 8px;
    min-height: 56px;
    padding: 10px 12px;
    border-radius: 11px;
    font-size: 12px;
  }

  .saved-row svg {
    width: 21px;
    height: 21px;
  }

  .saved-row .saved-arrow {
    width: 17px;
    height: 17px;
  }

  .panel-tabs {
    min-height: 66px;
    padding: 10px 2px 0;
  }

  .panel-tabs span {
    gap: 5px;
    font-size: 10px;
  }

  .panel-tabs span svg {
    width: 19px;
    height: 19px;
  }

  .proof-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .proof-strip p,
  .proof-strip p:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-strip p:last-child {
    border-bottom: 0;
  }

  .section-panel,
  .review-section,
  .quota-section,
  .faq-section {
    margin-top: 52px;
  }

  .section-copy h2,
  .quota-section h2,
  .faq-section h2 {
    font-size: 32px;
  }

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

  .feature-card h3 {
    margin-top: 18px;
  }

  .review-section,
  .quota-section {
    padding: 24px;
    border-radius: 18px;
  }

  .review-mock {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .review-sidebar {
    grid-template-columns: 70px repeat(3, 1fr);
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .review-sidebar span {
    height: 26px;
  }

  .review-note {
    margin: 18px;
    padding: 20px;
  }

  .faq-list summary {
    padding: 16px;
  }

  .faq-list p {
    padding: 0 16px 16px;
  }

  .policy-wrap {
    padding: 46px 0 72px;
  }

  .policy-wrap h1 {
    font-size: 38px;
  }

  .qr-block {
    justify-self: start;
  }
}

@media (max-width: 420px) {
  .nav-cta {
    padding: 0 11px;
  }

  .hero h1 {
    font-size: 34px;
  }

  html[lang="zh-CN"] .hero h1 {
    font-size: 34px;
  }

  .button {
    padding: 0 18px;
    font-size: 14px;
  }

  .product-demo {
    min-height: 500px;
  }

  .review-sidebar {
    grid-template-columns: 1fr;
  }
}

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

  .button.primary:hover,
  .nav-cta:hover {
    transform: none;
  }
}