:root {
  --ink: #111827;
  --muted: #5b6675;
  --subtle: #8993a2;
  --line: #dde3ec;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --navy: #071b3a;
  --blue: #0d63c7;
  --teal: #138f8a;
  --gold: #b8862d;
  --green: #2f7d57;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(221, 227, 236, 0.9);
  backdrop-filter: blur(16px);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 7px;
  font-size: 14px;
  font-weight: 850;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 18px;
  line-height: 1.1;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #1d2735;
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.82;
}

.site-nav a:hover {
  color: var(--blue);
  opacity: 1;
}

.nav-toggle {
  display: none;
}

.hero {
  min-height: 720px;
  padding: clamp(54px, 7vw, 86px) 0 66px;
  background:
    linear-gradient(90deg, #f8fbff 0%, #ffffff 48%, #eef5fb 100%),
    radial-gradient(circle at 16% 20%, rgba(13, 99, 199, 0.12), transparent 30%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.72fr);
  align-items: center;
  gap: clamp(44px, 7vw, 96px);
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1,
h2 {
  letter-spacing: 0;
  line-height: 1.14;
}

h1 {
  margin-bottom: 24px;
  color: #071b3a;
  font-size: clamp(46px, 6vw, 78px);
  font-weight: 900;
}

h2 {
  margin-bottom: 18px;
  color: #101828;
  font-size: clamp(30px, 4vw, 50px);
  font-weight: 860;
}

h3 {
  margin-bottom: 12px;
  color: #111827;
  font-size: 22px;
  line-height: 1.25;
}

.hero-copy p {
  max-width: 650px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 7px;
  font-size: 15px;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: #0d63c7;
  box-shadow: 0 12px 24px rgba(13, 99, 199, 0.2);
}

.button.secondary {
  color: #0d315f;
  background: #fff;
  border: 1px solid var(--line);
}

.hero-card {
  overflow: hidden;
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-card img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.hero-card-body {
  padding: 20px 22px 22px;
}

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

.hero-card-body strong {
  color: var(--blue);
  font-size: 15px;
}

.hero-card-body span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1180px, calc(100% - 40px));
  margin: -42px auto 0;
  position: relative;
  z-index: 3;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.proof-strip div {
  padding: 26px 28px;
  border-right: 1px solid var(--line);
}

.proof-strip div:last-child {
  border-right: 0;
}

.proof-strip strong {
  display: block;
  color: var(--blue);
  font-size: 38px;
  line-height: 1;
}

.proof-strip span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: clamp(70px, 9vw, 112px) 0;
}

.section-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 38px;
}

.section-heading.compact {
  max-width: 700px;
}

.section-heading p,
.body-copy,
.body-copy p {
  color: var(--muted);
  font-size: 17px;
}

.about-section {
  background: #fff;
}

.about-grid,
.delivery-grid,
.credential-grid,
.clients-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: start;
}

.service-section {
  background: var(--soft);
}

.service-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 24px;
}

.service-primary,
.service-list article,
.scenario-grid article,
.value-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-primary {
  padding: 34px;
  min-height: 100%;
}

.service-index,
.service-list span {
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
}

.service-primary p,
.service-list p,
.scenario-grid p {
  color: var(--muted);
}

.service-primary ul {
  margin: 24px 0 0;
  padding-left: 18px;
  color: #334155;
}

.service-primary li + li {
  margin-top: 10px;
}

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

.service-list article {
  padding: 26px;
}

.kingdee-section {
  background:
    linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
  border-top: 1px solid var(--line);
}

.kingdee-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: clamp(32px, 6vw, 78px);
  align-items: start;
  margin-bottom: 34px;
}

.kingdee-intro p {
  color: var(--muted);
  font-size: 17px;
}

.kingdee-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  margin-bottom: 24px;
  background: #071b3a;
  border-radius: 8px;
}

.kingdee-stats div {
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.kingdee-stats div:last-child {
  border-right: 0;
}

.kingdee-stats strong,
.kingdee-stats span {
  display: block;
}

.kingdee-stats strong {
  color: #fff;
  font-size: 26px;
  line-height: 1.1;
}

.kingdee-stats span {
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.product-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.product-matrix article {
  min-height: 220px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.product-matrix span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  color: var(--blue);
  background: #eef5ff;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 850;
}

.product-matrix h3 {
  margin-top: 22px;
}

.product-matrix p {
  color: var(--muted);
}

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

.business-fields div {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.business-fields p {
  color: var(--muted);
}

.solution-section {
  color: #fff;
  background: #071b3a;
}

.solution-section h2,
.solution-section h3 {
  color: #fff;
}

.solution-section .section-heading p,
.solution-section .scenario-grid p {
  color: rgba(255, 255, 255, 0.72);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.scenario-grid article {
  min-height: 270px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.scenario-grid span {
  display: block;
  margin-top: 26px;
  color: #97d9e4;
  font-size: 13px;
  font-weight: 800;
}

.delivery-section {
  background: #fff;
}

.photo-stack {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 14px;
}

.photo-stack img {
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.08);
}

.photo-stack .photo-main {
  grid-row: span 2;
  min-height: 410px;
}

.process-list {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  position: relative;
  padding: 18px 20px 18px 58px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.process-list li::before {
  counter-increment: process;
  content: counter(process);
  position: absolute;
  left: 18px;
  top: 18px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: #fff;
  background: var(--blue);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 850;
}

.process-list strong,
.process-list span {
  display: block;
}

.process-list span {
  margin-top: 4px;
  color: var(--muted);
}

.credentials-section {
  background: #f7f9fc;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cert-grid figure {
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.08);
}

.cert-grid img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.cert-grid figcaption {
  padding: 13px 14px 15px;
  color: #334155;
  font-weight: 750;
}

.clients-section {
  background: #fff;
}

.client-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.client-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  color: #263548;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-weight: 720;
}

.culture-section {
  padding-top: 0;
  background: #fff;
}

.culture-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 38px;
  padding: clamp(30px, 5vw, 54px);
  color: #fff;
  background: linear-gradient(135deg, #071b3a, #123c69);
  border-radius: 8px;
}

.culture-panel h2 {
  color: #fff;
}

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

.value-grid article {
  padding: 20px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

.value-grid strong,
.value-grid span {
  display: block;
}

.value-grid span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
}

.contact-section {
  padding: clamp(70px, 9vw, 108px) 0;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 27, 58, 0.96), rgba(7, 27, 58, 0.72)),
    url("./assets/img/office-tea.jpg") center / cover;
}

.contact-section h2 {
  color: #fff;
}

.contact-section p {
  color: rgba(255, 255, 255, 0.74);
  font-size: 17px;
}

.contact-card {
  padding: 28px;
  color: var(--ink);
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.contact-card a,
.contact-card span {
  display: block;
}

.contact-card .phone {
  color: var(--blue);
  font-size: 28px;
  font-weight: 900;
}

.contact-card a:not(.phone) {
  margin-top: 8px;
  color: var(--blue);
  font-weight: 800;
}

.contact-card span {
  margin-top: 14px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.82);
  background: #06162f;
}

.site-footer a {
  color: #fff;
}

.oa-page {
  min-height: 100vh;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 27, 58, 0.94), rgba(13, 99, 199, 0.62)),
    url("./assets/img/hero-office.jpg") center / cover;
}

.oa-shell {
  display: grid;
  align-content: center;
  min-height: 100vh;
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0;
}

.oa-panel {
  margin-top: 54px;
  max-width: 660px;
}

.oa-panel h1 {
  color: #fff;
  font-size: clamp(42px, 7vw, 72px);
}

.oa-panel p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.oa-panel .button.secondary {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.42);
}

@media (max-width: 1060px) {
  .hero-inner,
  .about-grid,
  .kingdee-intro,
  .service-layout,
  .delivery-grid,
  .credential-grid,
  .clients-grid,
  .contact-grid,
  .culture-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-card img {
    height: 420px;
  }

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

  .proof-strip,
  .kingdee-stats,
  .product-matrix,
  .business-fields {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-strip div:nth-child(2) {
    border-right: 0;
  }

  .proof-strip div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .site-header {
    height: 68px;
    padding: 0 16px;
  }

  .brand strong {
    font-size: 16px;
  }

  .brand small {
    font-size: 11px;
  }

  .nav-toggle {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    padding: 0;
    color: var(--ink);
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 7px;
  }

  .nav-toggle span {
    width: 18px;
    height: 2px;
    background: currentColor;
  }

  .nav-toggle span + span {
    margin-top: -12px;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

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

  .hero {
    padding: 46px 0 54px;
  }

  .hero-inner,
  .section-inner,
  .proof-strip {
    width: calc(100% - 28px);
  }

  h1 {
    font-size: 41px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-copy p,
  .section-heading p,
  .body-copy,
  .body-copy p {
    font-size: 16px;
  }

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

  .hero-card img {
    height: 360px;
  }

  .proof-strip {
    margin-top: 0;
    grid-template-columns: 1fr;
  }

  .proof-strip div,
  .proof-strip div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-strip div:last-child {
    border-bottom: 0;
  }

  .service-list,
  .scenario-grid,
  .kingdee-stats,
  .product-matrix,
  .business-fields,
  .cert-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .kingdee-stats div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .kingdee-stats div:last-child {
    border-bottom: 0;
  }

  .photo-stack {
    grid-template-columns: 1fr;
  }

  .photo-stack .photo-main {
    grid-row: auto;
    min-height: 260px;
  }

  .cert-grid img {
    height: 210px;
  }

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