:root {
  --blue: #087cff;
  --deep-blue: #064fb7;
  --text: #262a31;
  --muted: #626d7a;
  --light: #f3f8fc;
  --line: #e5edf5;
  --white: #fff;
  --shadow: 0 12px 34px rgba(26, 60, 94, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.7;
}

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

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

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1420px, calc(100% - 64px));
  height: 78px;
  margin: 0 auto;
  gap: 28px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-width: 360px;
}

.logo img {
  width: 166px;
  height: 52px;
  object-fit: contain;
  object-position: left center;
}

.logo span {
  color: var(--blue);
  font-size: 16px;
  font-weight: 800;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  color: #313843;
  font-size: 15px;
  white-space: nowrap;
}

.nav a,
.account-links a,
.footer nav a {
  transition: color 0.2s ease;
}

.nav a:hover,
.account-links a:hover,
.footer nav a:hover {
  color: var(--blue);
}

.account-links {
  display: flex;
  color: var(--blue);
  font-weight: 700;
  white-space: nowrap;
}

.account-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 0.75fr);
  gap: 72px;
  align-items: center;
  min-height: 670px;
  padding: 96px max(64px, calc((100vw - 1420px) / 2)) 74px;
  background: linear-gradient(180deg, #fbfdff 0%, #edf6fc 100%);
  overflow: hidden;
}

.hero-text {
  padding-left: 58px;
}

.company,
.kicker {
  margin: 0 0 16px;
  color: #20252c;
  font-size: 25px;
}

.company {
  color: var(--blue);
  font-size: 18px;
  font-weight: 800;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 52px;
  line-height: 1.25;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 36px;
  line-height: 1.3;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 138px;
  height: 46px;
  padding: 0 24px;
  border-radius: 4px;
  color: #fff;
  background: var(--blue);
  font-weight: 700;
}

.button-white {
  color: var(--blue);
  background: #fff;
}

.hero-art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 430px;
}

.hero-art::before,
.hero-art::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.hero-art::before {
  width: 560px;
  height: 560px;
  background: rgba(8, 124, 255, 0.08);
}

.hero-art::after {
  width: 380px;
  height: 380px;
  border: 1px solid rgba(8, 124, 255, 0.18);
}

.hero-art img {
  position: relative;
  z-index: 2;
  width: 330px;
  border-radius: 22px;
  box-shadow: 0 18px 42px rgba(8, 61, 142, 0.08);
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: min(1420px, calc(100% - 64px));
  margin: -54px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.feature-strip article {
  min-height: 260px;
  padding: 34px 28px;
  border-right: 1px solid var(--line);
}

.feature-strip article:last-child {
  border-right: 0;
}

.feature-strip h2 {
  font-size: 20px;
}

.feature-strip p,
.service-list p,
.screen-copy p,
.image-copy p,
.values p,
.step-grid p,
.section-title p {
  color: var(--muted);
}

.section {
  padding: 96px max(64px, calc((100vw - 1420px) / 2));
}

.section-title {
  max-width: 820px;
  margin: 0 auto 54px;
  text-align: center;
}

.section-title span,
.screen-copy span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.values {
  background: #fff;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.value-grid article {
  overflow: hidden;
  min-height: 420px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.value-grid h3,
.value-grid p {
  padding: 0 30px;
}

.value-image {
  display: block;
  width: 100%;
  height: 245px;
  margin-bottom: 28px;
  object-fit: cover;
  object-position: center;
}

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

.service-list {
  display: grid;
  gap: 18px;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.service-list article {
  display: grid;
  grid-template-columns: 110px 1fr;
  align-items: center;
  min-height: 110px;
  background: #fff;
  border-left: 4px solid var(--blue);
  box-shadow: var(--shadow);
}

.service-list strong {
  color: var(--blue);
  font-size: 36px;
  text-align: center;
}

.service-list p {
  margin: 0;
  padding: 0 34px 0 0;
  font-size: 18px;
}

.screen-section {
  display: grid;
  grid-template-columns: minmax(360px, 0.38fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
  padding: 96px max(64px, calc((100vw - 1420px) / 2));
  background: #fff;
}

.screen-copy {
  padding: 36px 0;
}

.screen-section img,
.image-row img {
  width: 100%;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.image-row {
  display: grid;
  grid-template-columns: minmax(320px, 0.34fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  background: var(--light);
}

.image-row.reverse {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.34fr);
  background: #fff;
}

.image-row.reverse .image-copy {
  order: 2;
}

.image-copy h2 {
  font-size: 42px;
}

.advantages {
  background: var(--light);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
}

.advantage-grid h3 {
  min-height: 92px;
  margin: 0;
  padding: 28px 30px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 20px;
}

.steps {
  background: #fff;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.step-grid article {
  min-height: 220px;
  padding: 34px;
  text-align: center;
  background: var(--light);
  border: 1px solid var(--line);
}

.step-grid span {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 22px;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
  font-weight: 800;
}

.contact {
  padding: 92px 64px;
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, var(--deep-blue), var(--blue));
}

.contact p {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.78);
}

.contact h2 {
  max-width: 900px;
  margin: 0 auto 28px;
}

.footer {
  color: rgba(255, 255, 255, 0.72);
  background: #151a22;
}

.footer-inner {
  width: min(1420px, calc(100% - 64px));
  margin: 0 auto;
  padding: 46px 0;
}

.footer img {
  width: 156px;
  height: 50px;
  padding: 5px 8px;
  margin-bottom: 26px;
  object-fit: contain;
  object-position: left center;
  background: #fff;
  border-radius: 6px;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 18px;
  color: #fff;
}

.footer address {
  margin-bottom: 10px;
  font-style: normal;
}

.footer p {
  margin: 0;
}

.footer a {
  color: rgba(255, 255, 255, 0.9);
}

.auth-page {
  min-height: 100vh;
  background: linear-gradient(180deg, #fbfdff 0%, #edf6fc 100%);
}

.auth-main {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 78px);
  padding: 72px 20px;
}

.auth-card {
  width: min(520px, 100%);
  padding: 46px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.auth-card img {
  width: 112px;
  margin: 0 auto 24px;
}

.auth-card h1 {
  margin-bottom: 14px;
  font-size: 42px;
}

.auth-card p:not(.company) {
  margin-bottom: 26px;
  color: var(--muted);
}

.auth-back {
  display: block;
  margin-top: 18px;
  color: var(--blue);
  font-weight: 700;
}

@media (max-width: 1180px) {
  .nav {
    display: none;
  }

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

  .feature-strip article {
    border-bottom: 1px solid var(--line);
  }

  .hero,
  .screen-section,
  .image-row,
  .image-row.reverse {
    grid-template-columns: 1fr;
  }

  .image-row.reverse .image-copy {
    order: 0;
  }
}

@media (max-width: 760px) {
  .header-inner,
  .feature-strip,
  .footer-inner {
    width: calc(100% - 40px);
  }

  .header-inner {
    height: 66px;
  }

  .logo img {
    width: 136px;
    height: 44px;
  }

  .logo {
    gap: 10px;
    min-width: 0;
  }

  .logo span {
    max-width: 180px;
    overflow: hidden;
    font-size: 13px;
    text-overflow: ellipsis;
  }

  .account-links {
    gap: 10px;
    font-size: 14px;
  }

  .hero,
  .section,
  .screen-section,
  .image-row {
    padding: 56px 20px;
  }

  .hero {
    min-height: auto;
  }

  .hero-text {
    padding-left: 0;
  }

  h1 {
    font-size: 36px;
  }

  h2,
  .image-copy h2 {
    font-size: 30px;
  }

  .company,
  .kicker {
    font-size: 18px;
  }

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

  .feature-strip article {
    min-height: auto;
  }

  .value-grid,
  .advantage-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }

  .service-list article {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .service-list strong {
    text-align: left;
  }

  .service-list p {
    padding: 0;
  }
}