:root {
  color-scheme: light;
  --ink: #17151c;
  --ink-soft: #39353f;
  --muted: #6b6672;
  --line: #dedbe4;
  --line-strong: #c9c4d0;
  --surface: #f6f5f8;
  --surface-warm: #fff7f2;
  --violet: #7334dc;
  --violet-dark: #5520b5;
  --rose: #d72b8d;
  --teal: #087f79;
  --gold: #936100;
  --shell: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
}

a {
  color: inherit;
}

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

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

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

.skip-link {
  position: fixed;
  z-index: 50;
  top: 8px;
  left: 8px;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid #ece9ef;
  border-radius: 8px;
}

.brand span {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.brand strong {
  font-size: 17px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

nav a {
  color: var(--ink-soft);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}

nav a:hover,
nav a:focus-visible,
nav a[aria-current="page"] {
  color: var(--violet);
}

.hero {
  min-height: 670px;
  display: flex;
  align-items: center;
  padding: 74px 0 68px;
  border-bottom: 1px solid var(--line);
  background: #fbfafc;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: 76px;
  align-items: center;
}

.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: #57515e;
  font-size: 14px;
  font-weight: 700;
}

.status-line span {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px #dcefeb;
}

h1 {
  margin: 0;
  font-size: 68px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-statement {
  max-width: 700px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
}

.lead {
  max-width: 630px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 21px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

.primary-action {
  background: var(--ink);
  color: #fff;
}

.secondary-action {
  background: #fff;
  color: var(--ink);
}

.primary-action:hover,
.primary-action:focus-visible {
  border-color: var(--violet-dark);
  background: var(--violet-dark);
}

.secondary-action:hover,
.secondary-action:focus-visible {
  border-color: var(--violet);
  color: var(--violet);
}

.operator-line {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.operator-line strong {
  color: var(--ink-soft);
}

.app-preview {
  width: min(100%, 470px);
  justify-self: end;
  padding: 26px;
  border: 1px solid #d8d3df;
  border-radius: 8px;
  background: #f1f0f5;
  box-shadow: 0 28px 70px rgba(38, 27, 48, 0.14);
}

.preview-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 2px 2px 20px;
}

.preview-topbar > div {
  display: flex;
  flex-direction: column;
}

.preview-kicker {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.preview-topbar strong {
  font-size: 22px;
}

.online-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border: 1px solid #d8d4dc;
  border-radius: 999px;
  background: #fff;
  color: #4c4751;
  font-size: 12px;
}

.online-indicator i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #20aa69;
}

.preview-create {
  min-height: 88px;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.preview-create img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

.preview-create div {
  display: flex;
  flex-direction: column;
}

.preview-create span {
  color: #ccc7d1;
  font-size: 12px;
}

.preview-create b {
  font-size: 19px;
}

.preview-label {
  margin: 20px 2px 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.preview-modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.preview-modes > div {
  min-height: 118px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid #dfdce4;
  border-radius: 8px;
  background: #fff;
}

.mode-swatch {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
}

.mode-swatch.violet {
  background: #eee5ff;
  color: var(--violet-dark);
}

.mode-swatch.rose {
  background: #fde4f1;
  color: #ad1f6f;
}

.mode-swatch.teal {
  background: #dbf2ef;
  color: #006d68;
}

.mode-swatch.gold {
  background: #f7ebcf;
  color: #7b5100;
}

.preview-modes strong {
  font-size: 14px;
}

.preview-modes small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
}

.preview-progress {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  padding: 13px 14px;
  border: 1px solid #dfdce4;
  border-radius: 8px;
  background: #fff;
  font-size: 12px;
}

.preview-progress span {
  color: var(--muted);
}

.identity-strip {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.identity-grid {
  min-height: 92px;
  display: grid;
  grid-template-columns: 0.65fr 1.5fr 0.55fr;
  align-items: center;
}

.identity-grid > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 0 30px;
  border-left: 1px solid var(--line);
}

.identity-grid > div:first-child {
  padding-left: 0;
  border-left: 0;
}

.identity-grid span {
  color: var(--muted);
  font-size: 12px;
}

.identity-grid strong {
  font-size: 15px;
}

.product-section,
.workflow-section,
.company-section,
.support-band {
  padding: 92px 0;
}

.section-label {
  margin: 0 0 12px;
  color: var(--violet);
  font-size: 13px;
  font-weight: 800;
}

h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.3;
  letter-spacing: 0;
}

.section-heading {
  max-width: 780px;
}

.section-heading > p:not(.section-label),
.split-heading > p,
.company-intro,
.support-grid > div > p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.split-heading {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 80px;
  align-items: end;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 46px;
}

.capability-grid article {
  min-height: 262px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.capability-index {
  color: var(--violet);
  font-weight: 800;
}

.rose-text {
  color: var(--rose);
}

.teal-text {
  color: var(--teal);
}

.gold-text {
  color: var(--gold);
}

.capability-grid h3 {
  margin: 48px 0 10px;
  font-size: 20px;
  line-height: 1.35;
}

.capability-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.workflow-section {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
}

.workflow-list li {
  min-width: 0;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 0 24px;
  border-left: 1px solid var(--line-strong);
}

.workflow-list li:first-child {
  padding-left: 0;
  border-left: 0;
}

.workflow-list > li > span {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.workflow-list h3 {
  margin: 2px 0 8px;
  font-size: 18px;
  line-height: 1.4;
}

.workflow-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.notice-bar {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 22px;
  margin-top: 42px;
  padding: 22px 24px;
  border-left: 4px solid var(--teal);
  background: #eaf7f4;
}

.notice-bar p {
  margin: 0;
  color: #385f5a;
}

.company-section {
  border-top: 1px solid var(--line);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.85fr);
  gap: 90px;
}

.english-name {
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  line-height: 1.45;
}

.company-intro {
  max-width: 650px;
  margin-top: 28px;
}

.company-facts {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.company-facts div {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.company-facts dt {
  color: var(--muted);
}

.company-facts dd {
  margin: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.company-facts a {
  color: var(--violet-dark);
  text-underline-offset: 4px;
}

.support-band {
  border-top: 1px solid var(--line);
  background: var(--surface-warm);
}

.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
  gap: 90px;
  align-items: center;
}

.support-grid > div > p {
  max-width: 720px;
  margin-top: 18px;
}

.support-actions {
  display: grid;
  justify-items: start;
  gap: 11px;
}

.email-action,
.phone-action {
  color: var(--ink-soft);
  font-weight: 700;
  text-underline-offset: 4px;
}

footer {
  padding: 36px 0 22px;
  background: var(--ink);
  color: #e8e4ea;
  font-size: 13px;
}

.footer-main,
.footer-brand,
.footer-links,
.footer-legal {
  display: flex;
  align-items: center;
}

.footer-main {
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 28px;
}

.footer-brand {
  gap: 12px;
}

.footer-brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

.footer-brand div {
  display: flex;
  flex-direction: column;
}

.footer-brand strong {
  color: #fff;
  font-size: 15px;
}

.footer-brand span {
  color: #aaa4af;
}

.footer-links {
  gap: 24px;
}

.footer-links a,
.footer-legal a {
  color: #fff;
  text-underline-offset: 4px;
}

.footer-legal {
  flex-wrap: wrap;
  gap: 12px 24px;
  padding-top: 20px;
  border-top: 1px solid #37333b;
  color: #aaa4af;
}

.footer-legal p {
  margin: 0;
}

.policy-main {
  padding: 66px 0 92px;
}

.policy-layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 740px);
  justify-content: space-between;
  gap: 78px;
}

.policy-layout aside {
  align-self: start;
  padding: 24px;
  border-top: 4px solid var(--violet);
  background: var(--surface);
}

.policy-layout aside h1 {
  margin: 0 0 20px;
  font-size: 29px;
  line-height: 1.3;
}

.policy-layout aside p {
  margin: 7px 0;
  color: var(--muted);
  font-size: 14px;
}

.policy-layout aside a {
  display: block;
  margin-top: 18px;
  color: var(--violet-dark);
  overflow-wrap: anywhere;
}

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

.policy-intro {
  margin: 0;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
  color: #4b4651;
  font-size: 18px;
}

.policy-content section {
  padding-top: 32px;
}

.policy-content h2 {
  font-size: 23px;
}

.policy-content h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.policy-content p,
.policy-content li {
  color: #4f4a55;
}

.policy-content p {
  margin: 13px 0 0;
}

.policy-content ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.policy-content a {
  color: var(--violet-dark);
  overflow-wrap: anywhere;
}

.faq-list {
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 20px 0;
  cursor: pointer;
  font-weight: 700;
}

.faq-list details p {
  margin: -4px 0 20px;
}

.contact-list {
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
}

.contact-list div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list dt {
  color: var(--muted);
}

.contact-list dd {
  margin: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

@media (max-width: 980px) {
  .hero-grid,
  .split-heading,
  .company-grid,
  .support-grid,
  .policy-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero {
    min-height: 0;
  }

  .app-preview {
    width: 100%;
    max-width: 620px;
    justify-self: start;
  }

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

  .workflow-list {
    gap: 34px 0;
  }

  .workflow-list li:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .policy-layout aside {
    max-width: 560px;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

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

  .brand img {
    width: 40px;
    height: 40px;
  }

  .brand small {
    display: none;
  }

  nav {
    gap: 16px;
  }

  nav a {
    display: none;
    font-size: 13px;
  }

  nav a[href="/support"],
  nav a[href="/privacy"] {
    display: inline;
  }

  .hero {
    padding: 52px 0 46px;
  }

  .hero-grid {
    gap: 42px;
  }

  h1 {
    font-size: 46px;
  }

  .hero-statement {
    font-size: 22px;
  }

  .lead {
    font-size: 16px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .app-preview {
    padding: 18px;
  }

  .preview-topbar strong {
    font-size: 20px;
  }

  .preview-modes > div {
    min-height: 112px;
    padding: 12px;
  }

  .preview-progress {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .identity-grid {
    grid-template-columns: 1fr;
    padding: 18px 0;
  }

  .identity-grid > div,
  .identity-grid > div:first-child {
    padding: 10px 0;
    border: 0;
  }

  .product-section,
  .workflow-section,
  .company-section,
  .support-band {
    padding: 64px 0;
  }

  h2 {
    font-size: 29px;
  }

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

  .capability-grid article {
    min-height: 0;
  }

  .capability-grid h3 {
    margin-top: 28px;
  }

  .workflow-list {
    gap: 0;
  }

  .workflow-list li,
  .workflow-list li:nth-child(3),
  .workflow-list li:first-child {
    padding: 20px 0;
    border-top: 1px solid var(--line-strong);
    border-left: 0;
  }

  .notice-bar,
  .company-facts div,
  .contact-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-main,
  .footer-legal {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 12px 20px;
  }

  .policy-main {
    padding: 42px 0 68px;
  }
}

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