:root {
  --ink: #1d2230;
  --muted: #686f80;
  --quiet: #8b91a0;
  --paper: #f7f7fa;
  --surface: rgba(255, 255, 255, 0.82);
  --line: rgba(54, 62, 86, 0.12);
  --brand: #5968ef;
  --brand-deep: #3848d7;
  --brand-soft: #e9ebff;
  --mint: #dff4ec;
  --warm: #f4eadf;
  --danger: #bf3a4b;
  --shadow: 0 24px 80px rgba(43, 50, 84, 0.1);
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgba(116, 128, 255, 0.14), transparent 30rem),
    radial-gradient(circle at 8% 48%, rgba(123, 210, 184, 0.1), transparent 26rem),
    var(--paper);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

:focus-visible {
  outline: 3px solid rgba(89, 104, 239, 0.36);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: white;
  background: var(--brand-deep);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgba(247, 247, 250, 0.78);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 12px 32px rgba(34, 39, 64, 0.05);
}

.header-inner,
.site-main,
.footer-inner {
  width: min(calc(100% - 40px), var(--content));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  box-shadow: 0 8px 24px rgba(62, 73, 190, 0.16);
}

.brand small {
  display: block;
  margin-top: 1px;
  color: var(--quiet);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 10px 13px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
}

.site-nav .nav-cta {
  margin-left: 6px;
  color: white;
  background: var(--ink);
}

.site-nav .nav-cta:hover {
  color: white;
  background: #303647;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.8);
  font: inherit;
  white-space: nowrap;
}

.hero {
  display: grid;
  min-height: 680px;
  padding: 92px 0 84px;
  align-items: center;
  grid-template-columns: minmax(0, 1.06fr) minmax(360px, 0.94fr);
  gap: 74px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.eyebrow::before {
  width: 22px;
  height: 1px;
  background: currentColor;
  content: "";
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(48px, 7vw, 86px);
  font-weight: 760;
  letter-spacing: -0.065em;
  line-height: 1.02;
}

.hero-copy > p {
  max-width: 610px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
}

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

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: 15px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: white;
  background: var(--brand);
  box-shadow: 0 14px 30px rgba(71, 84, 220, 0.25);
}

.button-primary:hover {
  background: var(--brand-deep);
  box-shadow: 0 18px 38px rgba(71, 84, 220, 0.3);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.68);
}

.hero-note {
  display: flex;
  margin-top: 26px;
  align-items: center;
  gap: 10px;
  color: var(--quiet);
  font-size: 13px;
}

.hero-note::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #52b68c;
  box-shadow: 0 0 0 5px rgba(82, 182, 140, 0.12);
  content: "";
}

.product-orbit {
  position: relative;
  min-height: 510px;
}

.product-orbit::before {
  position: absolute;
  inset: 8% 3% 10% 8%;
  border: 1px solid rgba(90, 103, 232, 0.15);
  border-radius: 46% 54% 49% 51%;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.78), rgba(233, 235, 255, 0.44));
  box-shadow: var(--shadow);
  content: "";
  transform: rotate(-5deg);
}

.workflow-panel {
  position: absolute;
  z-index: 2;
  inset: 56px 28px 36px 56px;
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 30px 70px rgba(45, 53, 100, 0.14);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.workflow-panel > span {
  color: var(--quiet);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.workflow-panel h2 {
  margin: 9px 0 28px;
  font-size: 26px;
  letter-spacing: -0.035em;
}

.workflow-list {
  display: grid;
  gap: 12px;
}

.workflow-item {
  display: grid;
  padding: 15px 16px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.68);
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
}

.workflow-item b {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 11px;
  color: var(--brand-deep);
  background: var(--brand-soft);
  font-size: 12px;
}

.workflow-item strong {
  font-size: 15px;
}

.workflow-item small {
  color: var(--quiet);
  font-size: 12px;
}

.workflow-item em {
  color: var(--quiet);
  font-size: 16px;
  font-style: normal;
}

.floating-chip {
  position: absolute;
  z-index: 3;
  padding: 11px 15px;
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 14px 34px rgba(42, 49, 82, 0.12);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.floating-chip-a {
  top: 22px;
  right: 8px;
}

.floating-chip-b {
  bottom: 20px;
  left: 14px;
}

.section {
  padding: 96px 0;
}

.section-heading {
  display: grid;
  margin-bottom: 48px;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.65fr);
  gap: 80px;
  align-items: end;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(36px, 5vw, 60px);
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.section-heading p {
  margin-bottom: 4px;
  color: var(--muted);
  line-height: 1.85;
}

.steps {
  display: grid;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(4, 1fr);
}

.step {
  min-height: 285px;
  padding: 28px 28px 32px 0;
  border-right: 1px solid var(--line);
}

.step + .step {
  padding-left: 28px;
}

.step:last-child {
  border-right: 0;
}

.step-number {
  display: inline-flex;
  margin-bottom: 64px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 780;
  letter-spacing: 0.1em;
}

.step h3 {
  margin-bottom: 12px;
  font-size: 22px;
  letter-spacing: -0.025em;
}

.step p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.capability-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.capability-card {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.68);
}

.capability-card:nth-child(2),
.capability-card:nth-child(3) {
  min-height: 285px;
}

.capability-card:nth-child(4) {
  background: #202636;
  color: white;
}

.capability-card > span {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 10px;
  color: var(--brand-deep);
  background: var(--brand-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.capability-card:nth-child(4) > span {
  color: #c9ceff;
  background: rgba(143, 153, 255, 0.16);
}

.capability-card h3 {
  max-width: 390px;
  margin: 25px 0 14px;
  font-size: 30px;
  letter-spacing: -0.04em;
}

.capability-card p {
  max-width: 470px;
  color: var(--muted);
  line-height: 1.85;
}

.capability-card:nth-child(4) p {
  color: #b7bdca;
}

.format-tags {
  display: flex;
  margin-top: 40px;
  flex-wrap: wrap;
  gap: 10px;
}

.format-tags i {
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.cooperation {
  position: relative;
  overflow: hidden;
  padding: 64px;
  border-radius: 42px;
  color: white;
  background: #202636;
  box-shadow: 0 35px 90px rgba(31, 38, 57, 0.2);
}

.cooperation::after {
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  bottom: -240px;
  border: 80px solid rgba(112, 125, 255, 0.24);
  border-radius: 50%;
  content: "";
}

.cooperation-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.8fr);
  gap: 72px;
}

.cooperation h2 {
  max-width: 610px;
  margin-bottom: 22px;
  font-size: clamp(40px, 5.5vw, 68px);
  letter-spacing: -0.055em;
  line-height: 1.06;
}

.cooperation-copy {
  max-width: 580px;
  color: #bcc2cf;
  font-size: 17px;
  line-height: 1.8;
}

.cooperation-list {
  display: grid;
  align-content: start;
  gap: 12px;
}

.cooperation-item {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
}

.cooperation-item strong {
  display: block;
  margin-bottom: 6px;
}

.cooperation-item span {
  color: #aeb5c4;
  font-size: 13px;
  line-height: 1.65;
}

.cooperation .button-primary {
  margin-top: 30px;
  background: white;
  color: #202636;
  box-shadow: none;
}

.cooperation .button-primary:hover {
  background: #eff0ff;
}

.legal-hero {
  padding: 82px 0 52px;
  border-bottom: 1px solid var(--line);
}

.legal-hero h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 70px);
}

.legal-hero > p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.meta-row {
  display: flex;
  margin-top: 30px;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-row span {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--quiet);
  background: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}

.legal-layout {
  display: grid;
  padding: 52px 0 96px;
  grid-template-columns: 240px minmax(0, 760px);
  justify-content: space-between;
  gap: 70px;
}

.legal-toc {
  position: sticky;
  top: 108px;
  align-self: start;
  display: grid;
  gap: 7px;
}

.legal-toc strong {
  margin-bottom: 9px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.legal-toc a {
  padding: 8px 10px;
  border-radius: 9px;
  color: var(--muted);
  font-size: 13px;
}

.legal-toc a:hover {
  color: var(--brand-deep);
  background: var(--brand-soft);
}

.legal-content {
  min-width: 0;
}

.legal-content section {
  padding: 0 0 48px;
  scroll-margin-top: 108px;
}

.legal-content h2 {
  margin-bottom: 18px;
  font-size: 28px;
  letter-spacing: -0.035em;
}

.legal-content h3 {
  margin: 28px 0 12px;
  font-size: 18px;
}

.legal-content p,
.legal-content li {
  color: #565e6f;
  font-size: 15px;
  line-height: 1.95;
}

.legal-content ul,
.legal-content ol {
  padding-left: 1.35em;
}

.legal-content a {
  color: var(--brand-deep);
  text-decoration: underline;
  text-decoration-color: rgba(56, 72, 215, 0.25);
  text-underline-offset: 3px;
}

.info-box {
  margin: 24px 0;
  padding: 22px 24px;
  border: 1px solid rgba(89, 104, 239, 0.16);
  border-radius: 17px;
  background: rgba(233, 235, 255, 0.54);
}

.info-box strong {
  display: block;
  margin-bottom: 6px;
}

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

.danger-box {
  border-color: rgba(191, 58, 75, 0.16);
  background: rgba(255, 235, 238, 0.7);
}

.data-table {
  width: 100%;
  margin: 24px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 16px;
}

.data-table th,
.data-table td {
  padding: 15px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: #565e6f;
  font-size: 13px;
  line-height: 1.7;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  font-weight: 700;
}

.data-table tr:last-child td,
.data-table tr:last-child th {
  border-bottom: 0;
}

.data-table th:last-child,
.data-table td:last-child {
  border-right: 0;
}

.support-grid {
  display: grid;
  margin-top: 36px;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.support-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.support-card b {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 11px;
  color: var(--brand-deep);
  background: var(--brand-soft);
  font-size: 12px;
}

.support-card h3 {
  margin-bottom: 9px;
}

.support-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.deletion-steps {
  display: grid;
  margin: 28px 0;
  gap: 12px;
}

.deletion-step {
  display: grid;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.72);
  grid-template-columns: 34px 1fr;
  gap: 14px;
}

.deletion-step b {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 11px;
  color: white;
  background: var(--brand);
  font-size: 12px;
}

.deletion-step strong {
  display: block;
  margin-bottom: 5px;
}

.deletion-step p {
  margin-bottom: 0;
}

.site-footer {
  padding: 52px 0 34px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.42);
}

.footer-main {
  display: flex;
  padding-bottom: 36px;
  justify-content: space-between;
  gap: 36px;
}

.footer-company {
  max-width: 420px;
}

.footer-company p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 10px 42px;
}

.footer-links a {
  color: var(--muted);
  font-size: 13px;
}

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

.footer-bottom {
  display: flex;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  justify-content: space-between;
  gap: 20px;
  color: var(--quiet);
  font-size: 11px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    right: 20px;
    left: 20px;
    display: none;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 14px;
  }

  .site-nav .nav-cta {
    margin: 4px 0 0;
    text-align: center;
  }

  .hero {
    min-height: 0;
    padding-top: 72px;
    grid-template-columns: 1fr;
    gap: 44px;
  }

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

  .section-heading,
  .cooperation-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

  .step:nth-child(2) {
    border-right: 0;
  }

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

  .capability-grid {
    grid-template-columns: 1fr;
  }

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

  .legal-toc {
    position: static;
    display: flex;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .legal-toc strong {
    display: none;
  }

  .legal-toc a {
    flex: 0 0 auto;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.6);
  }
}

@media (max-width: 640px) {
  .header-inner,
  .site-main,
  .footer-inner {
    width: min(calc(100% - 28px), var(--content));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .hero {
    padding: 58px 0 64px;
  }

  h1 {
    font-size: clamp(43px, 13vw, 62px);
  }

  .hero-copy > p {
    font-size: 17px;
  }

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

  .product-orbit {
    min-height: 460px;
  }

  .workflow-panel {
    inset: 36px 0 20px 0;
    padding: 24px 18px;
    border-radius: 27px;
  }

  .workflow-item {
    grid-template-columns: 32px 1fr;
  }

  .workflow-item em {
    display: none;
  }

  .floating-chip-a {
    right: 0;
  }

  .section {
    padding: 70px 0;
  }

  .section-heading {
    margin-bottom: 34px;
  }

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

  .step,
  .step + .step {
    min-height: auto;
    padding: 26px 0;
    border-right: 0;
    border-top: 1px solid var(--line);
  }

  .step-number {
    margin-bottom: 32px;
  }

  .capability-card {
    min-height: 0;
    padding: 28px;
    border-radius: 27px;
  }

  .cooperation {
    padding: 34px 24px;
    border-radius: 28px;
  }

  .cooperation-grid {
    grid-template-columns: 1fr;
  }

  .legal-hero {
    padding: 60px 0 38px;
  }

  .legal-hero h1 {
    font-size: 42px;
  }

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

  .data-table {
    display: block;
    overflow-x: auto;
    white-space: normal;
  }

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

  .footer-main,
  .footer-bottom {
    flex-direction: column;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
  }
}

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

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

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}