:root {
  --primary: #1e3a5f;
  --blue: #2f80ed;
  --blue-soft: #f3f8ff;
  --text: #1f2937;
  --muted: #6b7280;
  --warm: #f59e72;
  --white: #ffffff;
  --line: #d9e6f7;
  --line-strong: #b9d2f4;
  --teal: #16a7a0;
  --shadow: 0 18px 50px rgba(30, 58, 95, 0.1);
  --shadow-soft: 0 12px 30px rgba(30, 58, 95, 0.08);
  --radius: 8px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  color: var(--text);
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  background: var(--white);
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

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

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

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(217, 230, 247, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  color: var(--primary);
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  font-size: 13px;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), var(--blue));
  border-radius: var(--radius);
  box-shadow: 0 8px 18px rgba(47, 128, 237, 0.22);
}

.brand-name {
  font-size: 20px;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #334155;
  font-size: 15px;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.site-nav .nav-cta {
  padding: 9px 16px;
  color: var(--white);
  background: var(--primary);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(30, 58, 95, 0.18);
}

.site-nav .nav-cta::after {
  display: none;
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  color: var(--white);
  background: var(--blue);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.menu-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] .menu-toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.section-shell,
.section {
  position: relative;
}

.hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 88px 0 72px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(243, 248, 255, 0.98) 0%, rgba(255, 255, 255, 0.96) 74%),
    linear-gradient(90deg, rgba(47, 128, 237, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(47, 128, 237, 0.08) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, 0.92fr);
  align-items: center;
  gap: 56px;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow.warm {
  color: #d97745;
}

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

h1,
h2,
h3 {
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: 56px;
  font-weight: 850;
}

h2 {
  margin-bottom: 16px;
  font-size: 38px;
  font-weight: 820;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  font-weight: 800;
}

p {
  color: var(--muted);
}

.hero-lead {
  margin-bottom: 30px;
  color: #344256;
  font-size: 17px;
}

.hero-actions,
.hero-stats,
.feature-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.hero-actions {
  gap: 14px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 20px;
  color: var(--primary);
  font-weight: 800;
  line-height: 1.35;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 16px 30px rgba(47, 128, 237, 0.26);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #236fd4;
}

.button-secondary {
  color: var(--primary);
  background: var(--white);
  border-color: var(--line-strong);
  box-shadow: 0 12px 26px rgba(30, 58, 95, 0.08);
}

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

.button-warm {
  color: var(--white);
  background: #e88452;
  box-shadow: 0 14px 28px rgba(245, 158, 114, 0.28);
}

.hero-stats {
  gap: 12px;
}

.hero-stats div {
  min-width: 128px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(217, 230, 247, 0.9);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(30, 58, 95, 0.06);
}

.hero-stats strong {
  display: block;
  color: var(--primary);
  font-size: 22px;
  line-height: 1.2;
}

.hero-stats span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.optional-image-img {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.optional-image.is-loaded .optional-image-img {
  display: block;
}

.optional-image.is-loaded .optional-image-fallback {
  display: none;
}

.hero-visual {
  min-height: 540px;
  border-radius: var(--radius);
}

.hero-system {
  position: relative;
  height: 100%;
  min-height: 540px;
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.94), rgba(243, 248, 255, 0.92)),
    repeating-linear-gradient(90deg, rgba(47, 128, 237, 0.06) 0 1px, transparent 1px 36px);
  border: 1px solid rgba(185, 210, 244, 0.88);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.system-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 16px;
  color: var(--primary);
  font-size: 13px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.system-toolbar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-strong);
}

.system-toolbar span:first-child {
  background: var(--warm);
}

.system-toolbar span:nth-child(2) {
  background: #79c9c4;
}

.system-toolbar b {
  margin-left: auto;
  font-weight: 800;
}

.system-layout {
  position: relative;
  min-height: 494px;
  padding: 24px;
  display: grid;
  grid-template-columns: 154px 1fr;
  gap: 18px;
}

.app-phone {
  position: relative;
  min-height: 348px;
  padding: 20px 14px 16px;
  align-self: start;
  background: #101f35;
  border: 7px solid #162b48;
  border-radius: 26px;
  box-shadow: 0 18px 36px rgba(16, 31, 53, 0.2);
}

.phone-bar {
  width: 46px;
  height: 5px;
  margin: 0 auto 18px;
  background: rgba(255, 255, 255, 0.32);
  border-radius: 999px;
}

.phone-title {
  margin-bottom: 14px;
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}

.phone-row {
  height: 10px;
  width: 68%;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 999px;
}

.phone-row.wide {
  width: 92%;
}

.phone-card {
  margin-top: 14px;
  padding: 13px 12px;
  color: var(--primary);
  font-weight: 800;
  line-height: 1.2;
  background: #eaf3ff;
  border-radius: var(--radius);
}

.phone-card.accent {
  color: #814626;
  background: #fff0e8;
}

.dashboard-panel {
  min-height: 268px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 34px rgba(30, 58, 95, 0.09);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--primary);
  font-weight: 800;
}

.panel-head i {
  padding: 3px 8px;
  color: var(--teal);
  font-size: 12px;
  font-style: normal;
  background: #e9fbfa;
  border-radius: 999px;
}

.chart-bars {
  height: 136px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: end;
  gap: 13px;
  padding: 14px 14px 0;
  background: linear-gradient(180deg, #f7fbff, #ffffff);
  border: 1px solid #edf4fc;
  border-radius: var(--radius);
}

.chart-bars span {
  height: var(--h);
  min-height: 28px;
  background: linear-gradient(180deg, var(--blue), #85b9f7);
  border-radius: 8px 8px 0 0;
}

.chart-bars span:nth-child(2),
.chart-bars span:nth-child(5) {
  background: linear-gradient(180deg, var(--teal), #8cd9d5);
}

.chart-bars span:nth-child(4) {
  background: linear-gradient(180deg, var(--warm), #ffd1b9);
}

.data-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.data-list span,
.system-tags span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  color: #486179;
  font-size: 12px;
  font-weight: 700;
  background: #f3f8ff;
  border: 1px solid #dceafe;
  border-radius: var(--radius);
}

.mini-card {
  position: absolute;
  width: 178px;
  padding: 16px;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.mini-card b,
.mini-card small {
  display: block;
}

.mini-card b {
  margin-top: 10px;
  margin-bottom: 2px;
  font-size: 18px;
  line-height: 1.2;
}

.mini-card small {
  color: var(--muted);
  font-size: 12px;
}

.mini-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  font-size: 13px;
  font-weight: 850;
  line-height: 1;
  background: var(--blue);
  border-radius: var(--radius);
}

.ai-card {
  right: 28px;
  bottom: 112px;
}

.ai-card .mini-icon {
  background: linear-gradient(135deg, var(--blue), var(--teal));
}

.mini-program {
  left: 172px;
  bottom: 36px;
}

.mini-program .mini-icon {
  background: linear-gradient(135deg, var(--primary), var(--blue));
}

.system-tags {
  position: absolute;
  right: 28px;
  bottom: 36px;
  display: grid;
  grid-template-columns: repeat(3, minmax(74px, 1fr));
  gap: 8px;
  width: min(280px, calc(100% - 228px));
}

.section {
  padding: 92px 0;
}

.section-tint {
  background:
    linear-gradient(180deg, rgba(243, 248, 255, 0.9), rgba(255, 255, 255, 0.92)),
    linear-gradient(90deg, rgba(30, 58, 95, 0.04) 1px, transparent 1px);
  background-size: auto, 48px 48px;
}

.section-heading {
  max-width: 720px;
}

.section-heading.center {
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading.narrow {
  max-width: 760px;
}

.section-heading p {
  font-size: 17px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.service-card,
.fit-box,
.contact-card,
.customer-grid article {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.service-card {
  min-height: 100%;
  padding: 28px;
}

.service-card p {
  margin-bottom: 0;
}

.card-icon,
.line-icon {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  background: #eff6ff;
  border: 1px solid #d8e8ff;
  border-radius: var(--radius);
}

.card-icon::before,
.card-icon::after,
.line-icon::before,
.line-icon::after {
  content: "";
  position: absolute;
  display: block;
}

.icon-stack::before {
  width: 23px;
  height: 16px;
  border: 2px solid var(--blue);
  border-radius: 4px;
  transform: translateY(-5px);
}

.icon-stack::after {
  width: 23px;
  height: 16px;
  border: 2px solid var(--primary);
  border-radius: 4px;
  transform: translate(6px, 5px);
}

.icon-ai::before {
  width: 24px;
  height: 24px;
  border: 2px solid var(--blue);
  border-radius: 50%;
}

.icon-ai::after {
  width: 30px;
  height: 2px;
  background:
    linear-gradient(90deg, transparent 0 5px, var(--primary) 5px 8px, transparent 8px 13px, var(--teal) 13px 17px, transparent 17px 22px, var(--warm) 22px 25px, transparent 25px);
}

.icon-flow::before {
  width: 24px;
  height: 28px;
  border-left: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: translate(3px, -4px);
}

.icon-flow::after {
  width: 9px;
  height: 9px;
  right: 12px;
  bottom: 12px;
  border-right: 2px solid var(--warm);
  border-bottom: 2px solid var(--warm);
  transform: rotate(-45deg);
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1fr);
  gap: 58px;
  align-items: center;
}

.experience-note {
  margin-top: 24px;
  margin-bottom: 0;
  padding: 18px 20px;
  color: #4b5563;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  border-left: 4px solid var(--warm);
  border-radius: var(--radius);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.capability-side {
  display: grid;
  gap: 16px;
}

.capability-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 86px;
  padding: 18px;
  color: var(--primary);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(30, 58, 95, 0.06);
}

.capability-item .line-icon {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  margin: 0;
}

.app-icon::before {
  width: 18px;
  height: 25px;
  border: 2px solid var(--blue);
  border-radius: 5px;
}

.app-icon::after {
  width: 4px;
  height: 4px;
  bottom: 8px;
  background: var(--blue);
  border-radius: 50%;
}

.admin-icon::before {
  width: 24px;
  height: 18px;
  border: 2px solid var(--primary);
  border-radius: 4px;
}

.admin-icon::after {
  width: 16px;
  height: 2px;
  background: var(--blue);
  box-shadow: 0 6px 0 var(--blue), 0 -6px 0 var(--teal);
}

.payment-icon::before {
  width: 24px;
  height: 17px;
  border: 2px solid var(--blue);
  border-radius: 4px;
}

.payment-icon::after {
  width: 18px;
  height: 2px;
  top: 17px;
  background: var(--primary);
}

.ai-line-icon::before {
  width: 22px;
  height: 22px;
  border: 2px solid var(--teal);
  border-radius: 50%;
}

.ai-line-icon::after {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: -12px 0 0 var(--warm), 12px 0 0 var(--primary);
}

.data-icon::before {
  width: 26px;
  height: 22px;
  border-left: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
}

.data-icon::after {
  width: 22px;
  height: 16px;
  border-top: 2px solid var(--blue);
  border-right: 2px solid var(--teal);
  transform: skewY(-18deg);
}

.api-icon::before {
  width: 25px;
  height: 14px;
  border-top: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
}

.api-icon::after {
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(-45deg);
}

.case-preview {
  min-height: 182px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.case-preview-fallback {
  height: 100%;
  min-height: 182px;
}

.case-preview-head {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  padding: 0 14px;
  border-bottom: 1px solid #edf4fc;
  background: #fbfdff;
}

.case-preview-head span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-strong);
}

.case-preview-head span:first-child {
  background: var(--warm);
}

.case-preview-head b {
  margin-left: auto;
  color: #486179;
  font-size: 12px;
  line-height: 1;
}

.case-preview-body {
  display: grid;
  grid-template-columns: 0.72fr 1fr 1fr;
  grid-template-rows: 54px 54px;
  gap: 10px;
  padding: 14px;
}

.case-preview-body i,
.case-preview-body strong {
  display: block;
  min-width: 0;
  border-radius: var(--radius);
}

.case-preview-body i {
  background: #eef6ff;
  border: 1px solid #dceafe;
}

.case-preview-body i:first-child {
  grid-row: span 2;
  background: #f8fbff;
}

.case-preview-body strong {
  grid-column: span 2;
  background: linear-gradient(90deg, rgba(47, 128, 237, 0.16), rgba(22, 167, 160, 0.14));
  border: 1px solid #d7f3ef;
}

.solution-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1fr);
  gap: 40px;
  align-items: stretch;
}

.solution-visual {
  min-height: 560px;
  border-radius: var(--radius);
}

.flow-visual {
  height: 100%;
  min-height: 560px;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 34px;
  background:
    linear-gradient(180deg, #f8fbff, #ffffff),
    linear-gradient(90deg, rgba(47, 128, 237, 0.06) 1px, transparent 1px);
  background-size: auto, 36px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.flow-step {
  width: min(260px, 100%);
  min-height: 54px;
  display: grid;
  place-items: center;
  padding: 10px 18px;
  color: var(--primary);
  font-weight: 850;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(30, 58, 95, 0.07);
}

.flow-step.final {
  color: var(--white);
  background: linear-gradient(135deg, var(--primary), var(--blue));
  border-color: transparent;
}

.flow-arrow {
  width: 2px;
  height: 26px;
  margin: 7px 0;
  background: var(--line-strong);
}

.flow-arrow::after {
  content: "";
  display: block;
  width: 9px;
  height: 9px;
  margin-left: -4px;
  transform: translateY(18px) rotate(45deg);
  border-right: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
}

.solution-content {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 22px;
}

.tag-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tag-grid span,
.feature-pills span {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  color: #38536d;
  font-weight: 750;
  line-height: 1.35;
  background: #f7fbff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.fit-box {
  padding: 28px;
}

.fit-box h3 {
  margin-bottom: 18px;
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: #405166;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}

.xinchen-section {
  background:
    linear-gradient(135deg, rgba(243, 248, 255, 0.96), rgba(255, 248, 244, 0.92)),
    linear-gradient(0deg, rgba(245, 158, 114, 0.06) 1px, transparent 1px);
  background-size: auto, 46px 46px;
}

.xinchen-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(440px, 1fr);
  align-items: center;
  gap: 48px;
}

.xinchen-copy p:not(.eyebrow) {
  font-size: 17px;
}

.section-subtitle {
  margin-top: -8px;
  color: #45586f;
  font-weight: 800;
}

.feature-pills {
  gap: 10px;
  margin: 24px 0;
}

.feature-pills span {
  min-height: 38px;
  color: #6f4b35;
  background: rgba(255, 255, 255, 0.84);
  border-color: #ffd8c3;
}

.compliance-note {
  margin: 0 0 24px;
  padding: 14px 16px;
  color: #5b6470;
  font-size: 14px !important;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid #ffe0cf;
  border-radius: var(--radius);
}

.phone-showcase {
  min-height: 480px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 18px;
}

.phone-mock {
  position: relative;
  aspect-ratio: 9 / 18.5;
  overflow: hidden;
  padding: 12px;
  background: #152944;
  border: 1px solid rgba(30, 58, 95, 0.2);
  border-radius: 28px;
  box-shadow: 0 18px 46px rgba(30, 58, 95, 0.16);
}

.phone-mock.featured {
  transform: translateY(-28px);
}

.phone-mock::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  z-index: 2;
  width: 48px;
  height: 5px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.38);
  border-radius: 999px;
}

.phone-mock .optional-image-img {
  object-fit: cover;
  border-radius: 20px;
}

.phone-placeholder {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 14px;
  padding: 34px 16px 18px;
  overflow: hidden;
  background:
    linear-gradient(180deg, #fff7f1, #ffffff 42%, #eef6ff),
    linear-gradient(90deg, rgba(47, 128, 237, 0.06) 1px, transparent 1px);
  background-size: auto, 28px 28px;
  border-radius: 20px;
}

.phone-placeholder span {
  color: var(--primary);
  font-size: 20px;
  font-weight: 850;
}

.phone-placeholder i,
.phone-placeholder b,
.phone-placeholder em {
  display: block;
  border-radius: var(--radius);
}

.phone-placeholder i {
  background:
    linear-gradient(135deg, rgba(47, 128, 237, 0.18), rgba(245, 158, 114, 0.25)),
    #ffffff;
  border: 1px solid #f1d7c9;
}

.phone-placeholder b {
  height: 48px;
  background: #eef6ff;
  border: 1px solid #dbeafe;
}

.phone-placeholder em {
  height: 76px;
  background: #fff0e8;
  border: 1px solid #ffd8c3;
}

.phone-placeholder.player {
  background: linear-gradient(180deg, #132642, #203e64);
}

.phone-placeholder.player span {
  color: var(--white);
}

.phone-placeholder.player i {
  position: relative;
  align-self: center;
  justify-self: center;
  width: 122px;
  height: 122px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
}

.phone-placeholder.player i::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  transform: translate(-38%, -50%);
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 22px solid var(--warm);
}

.phone-placeholder.player b,
.phone-placeholder.player em {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.phone-placeholder.journal i {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 14px;
  background: #f7fbff;
}

.phone-placeholder.journal i::before,
.phone-placeholder.journal i::after {
  content: "";
  display: block;
  min-height: 80px;
  background: #dceafe;
  border-radius: var(--radius);
}

.phone-placeholder.journal i::after {
  background: #ffdec9;
}

.customer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  counter-reset: customer;
}

.customer-grid article {
  position: relative;
  min-height: 136px;
  padding: 54px 22px 22px;
  color: #344256;
  font-weight: 750;
}

.customer-grid article::before {
  counter-increment: customer;
  content: "0" counter(customer);
  position: absolute;
  left: 22px;
  top: 18px;
  color: var(--blue);
  font-size: 18px;
  font-weight: 850;
  line-height: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.55fr) minmax(0, 1fr);
  gap: 54px;
  align-items: start;
}

.about-copy {
  padding: 28px 30px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.about-copy p:last-child {
  margin-bottom: 0;
}

.contact-section {
  background: linear-gradient(180deg, #ffffff, #f3f8ff);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
  gap: 42px;
  align-items: center;
}

.contact-grid h2 {
  margin-bottom: 16px;
}

.contact-grid p {
  max-width: 650px;
  margin-bottom: 28px;
  font-size: 17px;
}

.contact-card {
  padding: 30px;
  font-style: normal;
}

.contact-card dl {
  display: grid;
  gap: 18px;
  margin: 0;
}

.contact-card div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid #edf4fc;
}

.contact-card div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-card dt {
  color: var(--muted);
  font-weight: 700;
}

.contact-card dd {
  margin: 0;
  color: var(--primary);
  font-weight: 800;
  word-break: break-word;
}

.contact-card a {
  color: var(--blue);
}

.site-footer {
  color: #cbd5e1;
  background: #102038;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1fr);
  gap: 46px;
  padding: 46px 0 34px;
}

.footer-brand {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--white);
  font-size: 22px;
  font-weight: 850;
}

.site-footer p {
  max-width: 360px;
  margin-bottom: 0;
  color: #b6c5d8;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 22px;
}

.footer-nav a {
  color: #dce8f8;
  font-size: 14px;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0;
  color: #9fb0c6;
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom a {
  color: inherit;
}

.footer-bottom a:hover,
.footer-bottom a:focus-visible {
  color: var(--white);
}

.legal-main {
  background:
    linear-gradient(180deg, rgba(243, 248, 255, 0.96), rgba(255, 255, 255, 1) 360px),
    linear-gradient(90deg, rgba(47, 128, 237, 0.06) 1px, transparent 1px);
  background-size: auto, 44px 44px;
}

.legal-hero {
  padding: 82px 0 34px;
}

.legal-hero h1 {
  max-width: 760px;
  margin-bottom: 16px;
  font-size: 44px;
}

.legal-hero p {
  max-width: 780px;
  margin-bottom: 0;
  color: #42526a;
  font-size: 17px;
}

.legal-hero .legal-updated {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 16px;
  padding: 6px 10px;
  color: #486179;
  font-size: 14px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.legal-content {
  padding: 34px 0 92px;
}

.legal-card {
  max-width: 920px;
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.legal-card section + section {
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid #edf4fc;
}

.legal-card h2 {
  margin-bottom: 12px;
  font-size: 24px;
}

.legal-card p,
.legal-card li {
  color: #4b5563;
}

.legal-card p:last-child,
.legal-card ul:last-child {
  margin-bottom: 0;
}

.legal-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.legal-meta {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 20px;
  padding: 6px 10px;
  color: #486179;
  font-size: 14px;
  font-weight: 700;
  background: #f3f8ff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.support-item {
  min-height: 112px;
  padding: 18px;
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.support-item b {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
}

.support-item span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 1080px) {
  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-grid,
  .xinchen-grid,
  .split-grid,
  .solution-layout,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .section-heading {
    max-width: 820px;
  }

  .hero-visual,
  .hero-system {
    min-height: 500px;
  }

  .service-grid,
  .customer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .phone-showcase {
    max-width: 680px;
    margin: 0 auto;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(100% - 32px, 1160px);
  }

  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: calc(var(--header-height) + 10px);
    display: grid;
    gap: 4px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a,
  .site-nav .nav-cta {
    display: block;
    padding: 12px 14px;
    border-radius: var(--radius);
  }

  .site-nav a::after {
    display: none;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: var(--blue-soft);
  }

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

  .menu-toggle {
    display: inline-block;
  }

  .hero {
    padding: 62px 0 58px;
  }

  .section {
    padding: 72px 0;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-lead,
  .section-heading p,
  .xinchen-copy p:not(.eyebrow),
  .contact-grid p {
    font-size: 16px;
  }

  .system-layout {
    grid-template-columns: 138px 1fr;
    padding: 18px;
  }

  .app-phone {
    min-height: 324px;
  }

  .mini-card {
    width: 158px;
  }

  .ai-card {
    right: 18px;
    bottom: 118px;
  }

  .mini-program {
    left: 154px;
    bottom: 32px;
  }

  .system-tags {
    right: 18px;
    bottom: 32px;
    width: min(246px, calc(100% - 196px));
  }

  .tag-grid,
  .check-list,
  .capability-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    gap: 26px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-name {
    font-size: 18px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 27px;
  }

  h3 {
    font-size: 20px;
  }

  .hero {
    min-height: auto;
    padding: 42px 0 46px;
  }

  .hero-grid {
    gap: 30px;
  }

  .hero-lead {
    margin-bottom: 22px;
  }

  .hero-actions {
    align-items: stretch;
    gap: 10px;
    margin-bottom: 20px;
  }

  .hero-actions .button {
    flex: 1 1 145px;
    width: auto;
  }

  .contact-grid .button {
    width: 100%;
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .hero-stats div {
    min-width: 0;
    padding: 10px;
  }

  .hero-stats strong {
    font-size: 18px;
  }

  .hero-stats span {
    font-size: 12px;
  }

  .hero-visual,
  .hero-system {
    min-height: 360px;
  }

  .system-toolbar {
    height: 38px;
    padding: 0 12px;
  }

  .system-layout {
    min-height: 322px;
    grid-template-columns: minmax(96px, 0.55fr) minmax(0, 1fr);
    gap: 10px;
    padding: 12px;
  }

  .app-phone {
    width: 100%;
    min-height: 226px;
    padding: 14px 10px 12px;
    border-width: 5px;
    border-radius: 20px;
  }

  .phone-bar {
    width: 34px;
    height: 4px;
    margin-bottom: 12px;
  }

  .phone-title {
    margin-bottom: 10px;
    font-size: 18px;
  }

  .phone-row {
    height: 8px;
    margin-bottom: 8px;
  }

  .phone-card {
    margin-top: 10px;
    padding: 10px 8px;
    font-size: 13px;
  }

  .dashboard-panel {
    min-height: 226px;
    padding: 12px;
  }

  .panel-head {
    margin-bottom: 12px;
    font-size: 14px;
  }

  .chart-bars {
    height: 92px;
    gap: 7px;
    padding: 10px 10px 0;
  }

  .data-list {
    grid-template-columns: 1fr;
    gap: 6px;
    margin-top: 10px;
  }

  .data-list span {
    min-height: 28px;
  }

  .mini-card,
  .ai-card,
  .mini-program,
  .system-tags {
    display: none;
  }

  .service-grid,
  .customer-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .fit-box,
  .about-copy,
  .contact-card {
    padding: 22px;
  }

  .solution-visual,
  .flow-visual {
    min-height: 520px;
  }

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

  .phone-showcase {
    grid-template-columns: repeat(3, minmax(112px, 1fr));
    gap: 10px;
    min-height: 330px;
  }

  .phone-mock {
    padding: 8px;
    border-radius: 20px;
  }

  .phone-mock::before {
    width: 32px;
    height: 4px;
  }

  .phone-mock.featured {
    transform: translateY(-18px);
  }

  .phone-placeholder {
    padding: 28px 10px 12px;
    gap: 8px;
    border-radius: 14px;
  }

  .phone-placeholder span {
    font-size: 15px;
  }

  .phone-placeholder b {
    height: 34px;
  }

  .phone-placeholder em {
    height: 48px;
  }

  .phone-placeholder.player i {
    width: 72px;
    height: 72px;
  }

  .phone-placeholder.player i::after {
    border-top-width: 10px;
    border-bottom-width: 10px;
    border-left-width: 15px;
  }

  .contact-card div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .legal-hero {
    padding: 54px 0 24px;
  }

  .legal-hero h1 {
    font-size: 32px;
  }

  .legal-content {
    padding: 26px 0 72px;
  }

  .legal-card {
    padding: 22px;
  }

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

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

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

@media (max-width: 430px) {
  .phone-showcase {
    grid-template-columns: 1fr;
    max-width: 238px;
    min-height: auto;
  }

  .phone-mock.featured {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}