:root {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --surface-soft: #edf4f7;
  --ink: #102026;
  --muted: #60727a;
  --line: #d9e5e8;
  --accent: #0f9f8f;
  --accent-strong: #087b72;
  --accent-soft: #dff5f1;
  --deep: #10272d;
  --shadow: 0 24px 70px rgba(16, 39, 45, 0.12);
  --radius: 12px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 159, 143, 0.2), transparent 32rem),
    linear-gradient(135deg, rgba(15, 159, 143, 0.08), transparent 30%),
    linear-gradient(180deg, #fbfdfe 0%, var(--bg) 42%, #ffffff 100%);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 229, 232, 0.72);
  background: rgba(247, 249, 251, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.navbar,
.section-inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  display: block;
  width: 54px;
  height: 54px;
  object-fit: contain;
}

.brand-text {
  display: block;
  min-width: 0;
}

.brand-text strong,
.brand-text small {
  display: block;
  line-height: 1.15;
}

.brand-text strong {
  color: var(--ink);
  font-size: 21px;
  font-weight: 900;
}

.brand-text small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #465d65;
  font-size: 15px;
  font-weight: 650;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--accent-strong);
}

.nav-cta {
  padding: 10px 18px;
  border: 1px solid rgba(15, 159, 143, 0.34);
  border-radius: 999px;
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.nav-toggle {
  display: none;
}

.section {
  padding: 96px 0;
}

.hero {
  position: relative;
  padding: 34px 0 42px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(223, 245, 241, 0.82), transparent 52%),
    radial-gradient(circle at 78% 18%, rgba(15, 159, 143, 0.18), transparent 18rem);
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1fr);
  gap: 56px;
  align-items: center;
}

.hero-copy,
.product-visual,
.visual-shell,
.chat-panel,
.insight-panel,
.chat-row div {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 20px;
  font-size: clamp(40px, 4.8vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h1 span {
  display: block;
  text-wrap: balance;
}

h1 span:first-child {
  color: var(--accent-strong);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
}

.hero-lede,
.section-heading p,
.contact-grid > div > p,
.trust-grid > div > p {
  color: var(--muted);
  font-size: 18px;
}

.hero-lede {
  max-width: 540px;
  margin-bottom: 26px;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 0;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

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

.button:active {
  transform: translateY(0);
}

.button-primary {
  color: #ffffff;
  background: var(--accent-strong);
  box-shadow: 0 18px 36px rgba(8, 123, 114, 0.24);
}

.button-secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.tag-cloud span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid rgba(15, 159, 143, 0.18);
  border-radius: 999px;
  color: #31575d;
  background: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 700;
}

.product-visual {
  position: relative;
}

.product-visual::before {
  position: absolute;
  inset: auto -36px -30px 18%;
  height: 150px;
  border-radius: 999px;
  background: rgba(15, 159, 143, 0.14);
  filter: blur(12px);
  content: "";
}

.visual-shell {
  position: relative;
  overflow: hidden;
  max-width: 100%;
  border: 1px solid rgba(217, 229, 232, 0.86);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.78)),
    #ffffff;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.visual-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  color: #53686f;
  background: #f8fbfc;
  font-size: 13px;
}

.visual-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d7e4e7;
}

.visual-bar span:first-child {
  background: #f07a62;
}

.visual-bar span:nth-child(2) {
  background: #f0bd4f;
}

.visual-bar span:nth-child(3) {
  background: #60c989;
}

.visual-bar strong {
  margin-left: 10px;
}

.visual-body {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 220px;
  min-height: 378px;
}

.visual-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 14px;
  border-right: 1px solid var(--line);
  background: #10272d;
}

.sidebar-item {
  height: 30px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.16);
}

.sidebar-item.active {
  background: var(--accent);
}

.chat-panel,
.insight-panel {
  padding: 18px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-title span {
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
}

.chat-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
}

.chat-row.hot {
  border-color: rgba(15, 159, 143, 0.36);
  background: var(--accent-soft);
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #f48a6d, #f4c66d);
}

.avatar.blue {
  background: linear-gradient(135deg, #4187e8, #7cc7ef);
}

.avatar.green {
  background: linear-gradient(135deg, #0f9f8f, #9bdc8b);
}

.chat-row strong,
.chat-row p {
  display: block;
  margin: 0;
}

.chat-row p {
  color: var(--muted);
  font-size: 13px;
}

.chat-row em {
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: #ffffff;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  white-space: nowrap;
}

.insight-panel {
  border-left: 1px solid var(--line);
  background: #f4f8fa;
}

.score-card {
  padding: 16px;
  border-radius: 16px;
  color: #ffffff;
  background: var(--deep);
}

.score-card span,
.score-card strong {
  display: block;
}

.score-card span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.score-card strong {
  margin: 8px 0 12px;
  font-size: 30px;
  line-height: 1;
}

.progress {
  overflow: hidden;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.progress i {
  display: block;
  width: 68%;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.mini-chart {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 96px;
  padding: 14px;
  border-radius: 16px;
  background: #ffffff;
}

.mini-chart i {
  display: block;
  width: 100%;
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, var(--accent), rgba(15, 159, 143, 0.18));
}

.news-strip {
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.strip-grid a {
  display: block;
  min-height: 86px;
  padding: 18px 26px;
  border-right: 1px solid var(--line);
  color: #405960;
  font-weight: 700;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.strip-grid a:first-child {
  border-left: 1px solid var(--line);
}

.strip-grid span {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-strong);
  font-size: 13px;
}

.strip-grid a:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-heading.align-left {
  margin: 0;
  text-align: left;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card {
  position: relative;
  overflow: hidden;
  min-height: 340px;
  padding: 30px;
  border: 1px solid rgba(217, 229, 232, 0.92);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 16px 42px rgba(16, 39, 45, 0.07);
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.feature-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), rgba(15, 159, 143, 0.12));
  content: "";
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 159, 143, 0.26);
  box-shadow: 0 22px 56px rgba(16, 39, 45, 0.1);
}

.feature-card-hero {
  background:
    linear-gradient(135deg, rgba(15, 159, 143, 0.12), rgba(255, 255, 255, 0.92) 54%),
    #ffffff;
  border-color: rgba(15, 159, 143, 0.28);
}

.feature-card-hero .feature-index {
  color: #ffffff;
  background: var(--accent-strong);
}

.feature-card-tinted {
  background:
    linear-gradient(180deg, rgba(223, 245, 241, 0.78), rgba(255, 255, 255, 0.9)),
    #ffffff;
}

.feature-index {
  display: inline-flex;
  min-width: 40px;
  height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 36px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 900;
}

.feature-card p,
.solution-grid p,
.timeline-item p,
.trust-cards span,
.site-footer p {
  color: var(--muted);
}

.feature-card ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.feature-card li {
  position: relative;
  padding-left: 18px;
  color: #344c54;
  font-size: 14px;
  font-weight: 700;
}

.feature-card li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.section-muted {
  background:
    linear-gradient(180deg, #edf4f7 0%, #f7f9fb 100%),
    var(--surface-soft);
}

.workflow-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 70px;
  align-items: start;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(217, 229, 232, 0.9);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 42px rgba(16, 39, 45, 0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.timeline-item span {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 14px;
  color: #ffffff;
  background: var(--accent-strong);
  font-weight: 900;
}

.timeline-item p {
  margin-bottom: 0;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.solution-grid article {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(223, 245, 241, 0.74), transparent 56%),
    #ffffff;
}

.solution-grid article::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), rgba(15, 159, 143, 0.18));
  content: "";
}

.section-dark {
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(15, 159, 143, 0.16), transparent 45%),
    var(--deep);
}

.section-dark .eyebrow {
  color: #83e3d8;
}

.trust-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
  gap: 64px;
  align-items: center;
}

.trust-grid > div > p {
  color: rgba(255, 255, 255, 0.72);
}

.trust-cards {
  display: grid;
  gap: 14px;
}

.trust-cards article {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  align-items: center;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.07);
}

.trust-cards strong {
  color: #ffffff;
  font-size: 26px;
}

.trust-cards span {
  color: rgba(255, 255, 255, 0.7);
}

.contact-section {
  background: #ffffff;
}

.wechat-card {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(223, 245, 241, 0.76), rgba(255, 255, 255, 0.96)),
    #f8fbfc;
  box-shadow: 0 18px 60px rgba(16, 39, 45, 0.08);
}

.qr-panel {
  display: grid;
  place-items: center;
  padding: 16px;
  border: 1px solid #d7e7ea;
  border-radius: 18px;
  background: #ffffff;
}

.qr-panel img {
  width: 100%;
  max-width: 218px;
  aspect-ratio: 1;
  object-fit: contain;
}

.wechat-card-content {
  min-width: 0;
}

.qr-label {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 12px;
  border: 1px solid rgba(15, 159, 143, 0.2);
  border-radius: 999px;
  color: var(--accent-strong);
  background: #ffffff;
  font-size: 13px;
  font-weight: 900;
}

.wechat-card-content h3 {
  margin-bottom: 12px;
  font-size: 28px;
}

.wechat-card-content p {
  color: var(--muted);
}

.qr-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.qr-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  color: #31575d;
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 800;
}

.site-footer {
  padding: 46px 0;
  border-top: 1px solid var(--line);
  background: #f8fbfc;
}

.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.65s ease,
    transform 0.65s ease;
}

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

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

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

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

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.site-footer p {
  max-width: 520px;
  margin: 16px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: #405960;
  font-weight: 750;
}

.footer-record {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(217, 229, 232, 0.82);
  color: #6d7f86;
  font-size: 13px;
  text-align: center;
}

.footer-record a:hover {
  color: var(--accent-strong);
}

@media (max-width: 1080px) {
  .hero-grid,
  .workflow-grid,
  .trust-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 820px) {
  .navbar,
  .section-inner {
    width: min(calc(100% - 28px), var(--max));
  }

  .nav-toggle {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #ffffff;
  }

  .nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: var(--ink);
    transition:
      transform 0.2s ease,
      opacity 0.2s ease;
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 1px);
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 18px 50px rgba(16, 39, 45, 0.12);
  }

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

  .nav-links a {
    padding: 13px 12px;
  }

  .nav-cta {
    text-align: center;
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: 36px;
  }

  .visual-body {
    grid-template-columns: 50px minmax(0, 1fr);
  }

  .insight-panel {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

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

  .strip-grid a,
  .strip-grid a:first-child {
    border-inline: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .strip-grid a:last-child {
    border-bottom: 0;
  }

  .feature-grid,
  .solution-grid,
  .wechat-card {
    grid-template-columns: 1fr;
  }

  .wechat-card {
    gap: 20px;
  }

  .qr-panel {
    width: min(100%, 282px);
    margin: 0 auto;
  }

  .feature-card {
    min-height: auto;
    border: 1px solid rgba(217, 229, 232, 0.92);
  }

  .feature-index {
    margin-bottom: 24px;
  }

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

@media (max-width: 560px) {
  .navbar,
  .section-inner {
    width: min(calc(100% - 28px), 330px);
  }

  h1 {
    max-width: 100%;
    font-size: 33px;
    line-height: 1.08;
    word-break: keep-all;
  }

  .hero-lede,
  .section-heading p,
  .contact-grid > div > p,
  .trust-grid > div > p {
    font-size: 16px;
    line-break: anywhere;
    word-break: break-all;
  }

  .brand-text small {
    max-width: 170px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand-logo {
    width: 52px;
    height: 52px;
  }

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

  .visual-shell {
    border-radius: 16px;
  }

  .visual-bar {
    padding: 0 12px;
  }

  .visual-bar strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .visual-body {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .visual-sidebar {
    padding: 14px 8px;
  }

  .chat-panel,
  .insight-panel {
    padding: 16px 12px;
  }

  .panel-title {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .chat-row {
    grid-template-columns: 36px 1fr;
    padding: 12px;
  }

  .chat-row strong,
  .chat-row p {
    line-break: anywhere;
    word-break: break-all;
  }

  .chat-row em {
    grid-column: 2;
    width: fit-content;
  }

  .avatar {
    width: 36px;
    height: 36px;
  }

  .trust-cards article {
    grid-template-columns: 1fr;
  }
}