:root {
  --canvas: #ffffff;
  --surface: #f5f5f7;
  --surface-strong: #ededf0;
  --text: #1a1a1c;
  --text-secondary: #5a5a5f;
  --text-tertiary: #6e6e73;
  --border: #e6e6ea;
  --brand: #f87840;
  --brand-deep: #f87840;
  --brand-soft: #fff2ea;
  --danger: #c0362f;
  --shadow: 0 24px 70px rgba(28, 20, 16, 0.1);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --content: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

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

:focus-visible {
  outline: 3px solid rgba(248, 120, 64, 0.45);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: #fff;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(230, 230, 234, 0.85);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  min-height: 72px;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 24px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 19px;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 11px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.container {
  width: min(calc(100% - 48px), var(--content));
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 98px;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: -260px;
  left: 50%;
  width: 820px;
  height: 820px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 225, 207, 0.72) 0, rgba(255, 242, 234, 0.38) 48%, rgba(255, 255, 255, 0) 70%);
  content: "";
  transform: translateX(-8%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: 72px;
}

.eyebrow {
  display: inline-flex;
  min-height: 34px;
  margin-bottom: 20px;
  padding: 4px 12px;
  border: 1px solid rgba(248, 120, 64, 0.35);
  border-radius: 999px;
  align-items: center;
  color: #7d3518;
  background: var(--brand-soft);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 660px;
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.hero-copy > p {
  max-width: 610px;
  margin-bottom: 32px;
  color: var(--text-secondary);
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.75;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 15px;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button-primary {
  color: var(--text);
  background: var(--brand-deep);
  box-shadow: 0 10px 26px rgba(248, 120, 64, 0.24);
}

.button-secondary {
  border-color: var(--border);
  background: #fff;
}

.launch-note {
  margin-top: 18px;
  color: var(--text-tertiary);
  font-size: 13px;
}

.phone-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-wrap::before,
.phone-wrap::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.phone-wrap::before {
  top: 10%;
  right: 0;
  width: 90px;
  height: 90px;
  background: var(--brand);
  opacity: 0.16;
}

.phone-wrap::after {
  bottom: 8%;
  left: 4%;
  width: 42px;
  height: 42px;
  background: var(--text);
  opacity: 0.07;
}

.phone {
  position: relative;
  width: min(100%, 360px);
  min-height: 650px;
  padding: 16px;
  border: 10px solid #1f1f22;
  border-radius: 52px;
  background: #fff;
  box-shadow: var(--shadow);
  transform: rotate(2deg);
}

.phone::before {
  display: block;
  width: 96px;
  height: 25px;
  margin: -6px auto 22px;
  border-radius: 999px;
  background: #1f1f22;
  content: "";
}

.phone-header {
  display: flex;
  margin-bottom: 22px;
  align-items: center;
  justify-content: space-between;
}

.phone-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.phone-date {
  color: var(--text-secondary);
  font-size: 12px;
}

.week-strip {
  display: grid;
  margin-bottom: 24px;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
}

.day {
  padding: 7px 2px;
  border-radius: 12px;
  color: var(--text-secondary);
  text-align: center;
  font-size: 10px;
  line-height: 1.4;
}

.day strong {
  display: block;
  color: var(--text);
  font-size: 13px;
}

.day.today {
  color: var(--text);
  background: var(--brand-deep);
}

.day.today strong {
  color: var(--text);
}

.schedule-card {
  display: grid;
  margin-bottom: 12px;
  padding: 15px;
  border-radius: 18px;
  grid-template-columns: 54px 1fr;
  gap: 12px;
  background: var(--surface);
}

.schedule-time {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
}

.schedule-card strong {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
}

.schedule-card span {
  color: var(--text-secondary);
  font-size: 11px;
}

.voice-bar {
  display: flex;
  min-height: 56px;
  margin-top: 26px;
  padding: 8px 9px 8px 16px;
  border: 1px solid var(--border);
  border-radius: 18px;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 12px;
}

.voice-button {
  display: grid;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  place-items: center;
  color: #fff;
  background: var(--brand-deep);
}

.voice-button svg {
  width: 20px;
}

.mockup-label {
  margin-top: 16px;
  color: var(--text-tertiary);
  font-size: 12px;
  text-align: center;
}

.section {
  padding: 96px 0;
}

.section-tinted {
  background: #fafafa;
}

.section-heading {
  max-width: 700px;
  margin-bottom: 48px;
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-kicker {
  margin-bottom: 10px;
  color: #8a3a1a;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 4.4vw, 50px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-size: 18px;
}

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

.feature-card {
  min-height: 290px;
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
}

.feature-card.wide {
  display: grid;
  grid-column: 1 / -1;
  min-height: 250px;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 36px;
  background: var(--text);
  color: #fff;
}

.icon-box {
  display: grid;
  width: 52px;
  height: 52px;
  margin-bottom: 44px;
  border-radius: 16px;
  place-items: center;
  color: var(--text);
  background: var(--brand-soft);
}

.icon-box svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 23px;
  line-height: 1.3;
}

.feature-card p {
  max-width: 540px;
  margin-bottom: 0;
  color: var(--text-secondary);
}

.feature-card.wide p {
  color: #c9c9ce;
}

.conversation {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bubble {
  max-width: 88%;
  padding: 12px 15px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.55;
}

.bubble.user {
  align-self: flex-end;
  color: var(--text);
  background: #fff;
}

.bubble.assistant {
  align-self: flex-start;
  color: var(--text);
  background: var(--brand-soft);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px;
}

.step-number {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 50%;
  place-items: center;
  color: var(--text);
  background: var(--brand-deep);
  font-size: 14px;
  font-weight: 800;
}

.step h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.step p {
  margin: 0;
  color: var(--text-secondary);
}

.privacy-panel {
  display: grid;
  padding: 50px;
  border-radius: var(--radius-lg);
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 64px;
  background: var(--brand-soft);
}

.privacy-mark {
  display: grid;
  width: 150px;
  height: 150px;
  margin: 0 auto;
  border-radius: 46px;
  place-items: center;
  background: #fff;
  box-shadow: 0 18px 45px rgba(76, 44, 27, 0.09);
}

.privacy-mark svg {
  width: 66px;
  height: 66px;
}

.privacy-panel h2 {
  font-size: clamp(30px, 4vw, 45px);
}

.privacy-panel p {
  color: var(--text-secondary);
}

.text-link {
  color: #773115;
  font-weight: 750;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

details {
  border-bottom: 1px solid var(--border);
}

summary {
  position: relative;
  padding: 24px 46px 24px 0;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  position: absolute;
  top: 25px;
  right: 8px;
  color: var(--text-secondary);
  content: "+";
  font-size: 26px;
  font-weight: 400;
  line-height: 1;
}

details[open] summary::after {
  content: "−";
}

details p {
  max-width: 730px;
  padding: 0 0 24px;
  color: var(--text-secondary);
}

.final-cta {
  padding-top: 40px;
  padding-bottom: 112px;
}

.final-card {
  padding: 64px 30px;
  border-radius: var(--radius-lg);
  color: #fff;
  background: var(--text);
  text-align: center;
}

.final-card h2 {
  margin-bottom: 12px;
}

.final-card p {
  max-width: 590px;
  margin: 0 auto 28px;
  color: #c9c9ce;
}

.site-footer {
  padding: 44px 0 34px;
  border-top: 1px solid var(--border);
  background: #fafafa;
}

.footer-grid {
  display: grid;
  margin-bottom: 32px;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 36px;
}

.footer-brand p {
  max-width: 350px;
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 14px;
}

.footer-column h2 {
  margin-bottom: 12px;
  font-size: 14px;
  letter-spacing: 0;
}

.footer-column a,
.footer-column span {
  display: block;
  margin: 7px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--text-tertiary);
  font-size: 13px;
}

.footer-bottom a {
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--text);
}

.legal-hero {
  padding: 72px 0 44px;
  background: linear-gradient(180deg, var(--brand-soft), #fff);
}

.legal-hero h1 {
  margin-bottom: 12px;
  font-size: clamp(38px, 6vw, 58px);
}

.legal-hero p {
  margin-bottom: 0;
  color: var(--text-secondary);
}

.legal-layout {
  display: grid;
  padding-top: 52px;
  padding-bottom: 90px;
  grid-template-columns: 230px minmax(0, 760px);
  align-items: start;
  justify-content: space-between;
  gap: 64px;
}

.legal-nav {
  position: sticky;
  top: 102px;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.legal-nav a {
  display: block;
  padding: 8px 10px;
  border-radius: 9px;
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
}

.legal-nav a:hover,
.legal-nav a[aria-current="page"] {
  color: var(--text);
  background: #fff;
}

.legal-content section {
  margin-bottom: 44px;
}

.legal-content h2 {
  margin-bottom: 12px;
  font-size: 25px;
  letter-spacing: -0.025em;
}

.legal-content h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
}

.legal-content a {
  color: #773115;
  overflow-wrap: anywhere;
}

.legal-content ul,
.legal-content ol {
  padding-left: 1.4em;
}

.info-card {
  margin-bottom: 34px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.info-card p:last-child {
  margin-bottom: 0;
}

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

.support-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.support-card h2 {
  font-size: 22px;
}

.support-card p:last-child {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    display: none;
    padding: 14px 24px 22px;
    border-bottom: 1px solid var(--border);
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    background: #fff;
  }

  .nav-links[data-open="true"] {
    display: flex;
  }

  .nav-links a {
    min-height: 48px;
    padding: 12px 4px;
  }

  .hero-grid,
  .privacy-panel,
  .feature-card.wide {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 58px;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy h1,
  .hero-copy > p {
    margin-right: auto;
    margin-left: auto;
  }

  .actions {
    justify-content: center;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .step {
    display: grid;
    grid-template-columns: 48px 1fr;
    column-gap: 16px;
  }

  .step-number {
    grid-row: 1 / 3;
  }

  .legal-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .legal-nav {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 32px), var(--content));
  }

  .nav {
    padding: 0 16px;
  }

  .hero {
    padding: 58px 0 74px;
  }

  h1 {
    font-size: 44px;
  }

  .phone {
    min-height: 600px;
  }

  .section {
    padding: 72px 0;
  }

  .feature-grid,
  .support-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
    padding: 26px;
  }

  .icon-box {
    margin-bottom: 30px;
  }

  .privacy-panel {
    padding: 34px 24px;
    gap: 36px;
  }

  .privacy-mark {
    width: 120px;
    height: 120px;
  }

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

  .legal-hero {
    padding: 52px 0 34px;
  }

  .legal-layout {
    padding-top: 34px;
  }

  .legal-nav {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}