:root {
  --ink: #14211c;
  --muted: #5c6b64;
  --paper: #f7f4ed;
  --white: #fffdf8;
  --line: rgba(20, 33, 28, 0.12);
  --green: #1f8a5b;
  --green-dark: #176845;
  --blue: #2f6fbd;
  --amber: #d59a2a;
  --coral: #d65d50;
  --shadow: 0 18px 44px rgba(20, 33, 28, 0.11);
  --page-max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
  padding: 16px max(32px, calc((100vw - var(--page-max)) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(247, 244, 237, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  box-shadow: 0 10px 22px rgba(3, 5, 4, 0.14);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--ink);
}

.hero {
  width: min(calc(100% - 64px), var(--page-max));
  min-height: 480px;
  display: flex;
  align-items: center;
  margin: 96px auto 0;
  padding: 62px 56px 44px;
  border: 1px solid rgba(20, 33, 28, 0.08);
  border-radius: 12px;
  background-image:
    linear-gradient(90deg, rgba(247, 244, 237, 0.98) 0%, rgba(247, 244, 237, 0.92) 40%, rgba(247, 244, 237, 0.3) 78%, rgba(247, 244, 237, 0.06) 100%),
    url("/assets/erp-hero.png");
  background-size: 100% 100%, 760px auto;
  background-position: center, right center;
  background-repeat: no-repeat;
  box-shadow: var(--shadow);
}

.hero-inner {
  inline-size: min(510px, 100%);
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 3vw, 40px);
  line-height: 1.16;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(24px, 2.1vw, 30px);
  line-height: 1.1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
}

.hero-copy {
  max-width: 480px;
  margin: 0;
  color: #31443c;
  font-size: 17px;
  line-break: anywhere;
  max-inline-size: 100%;
  word-break: break-word;
}

.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: 12px 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--green);
  box-shadow: 0 16px 30px rgba(31, 138, 91, 0.22);
}

.button.secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 253, 248, 0.72);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 540px;
  margin: 36px 0 0;
}

.hero-stats div {
  padding: 16px 0;
  border-top: 1px solid rgba(20, 33, 28, 0.18);
}

.hero-stats dt {
  font-size: 25px;
  font-weight: 900;
}

.hero-stats dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.section {
  overflow: hidden;
  width: min(calc(100% - 64px), var(--page-max));
  margin: 0 auto;
  padding: 64px 0;
}

.services {
  padding-top: 56px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-head p:not(.eyebrow) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  grid-column: span 4;
  min-height: 236px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.service-card.featured {
  grid-column: span 6;
  min-height: 180px;
}

.platform-strip {
  display: grid;
  grid-template-columns: minmax(240px, 0.62fr) minmax(0, 1.38fr);
  gap: 22px;
  align-items: start;
  margin-top: 22px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(236, 242, 237, 0.76);
}

.platform-strip h3 {
  font-size: 20px;
}

.platform-copy p:not(.eyebrow) {
  margin: 14px 0 0;
  max-width: 280px;
  color: var(--muted);
  font-size: 14px;
}

.platform-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
}

.platform-badge,
.contact-points span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 7px 12px 7px 7px;
  border: 1px solid rgba(20, 33, 28, 0.12);
  border-radius: 10px;
  background: rgba(255, 253, 248, 0.82);
  color: #31443c;
  font-size: 14px;
  font-weight: 700;
}

.contact-points span {
  min-height: 34px;
  padding: 6px 14px;
  border-radius: 999px;
}

.platform-mark {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(20, 33, 28, 0.08);
  overflow: hidden;
}

.platform-logo {
  display: block;
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.platform-badge.amazon .platform-logo {
  width: 20px;
  height: 20px;
}

.platform-badge.tmall .platform-logo {
  width: 18px;
  height: 18px;
}

.service-icon {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 24px;
  border-radius: 8px;
  color: #fff;
}

.service-icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-icon.green { background: var(--green); }
.service-icon.blue { background: var(--blue); }
.service-icon.amber { background: var(--amber); }
.service-icon.coral { background: var(--coral); }
.service-icon.ink { background: var(--ink); }

.service-card p,
.advantage-list p,
.process-list p,
.contact-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.service-card.featured .service-icon {
  margin-bottom: 18px;
}

.band {
  background: #ecf2ed;
  width: 100%;
  max-width: none;
  padding-left: max(32px, calc((100vw - var(--page-max)) / 2));
  padding-right: max(32px, calc((100vw - var(--page-max)) / 2));
}

.band-content {
  max-width: var(--page-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: start;
}

.advantage-list {
  display: grid;
  gap: 18px;
}

.advantage-list article {
  padding: 0 0 22px;
  border-bottom: 1px solid rgba(20, 33, 28, 0.14);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 220px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.process-list span {
  display: block;
  margin-bottom: 28px;
  color: var(--coral);
  font-size: 15px;
  font-weight: 900;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: center;
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 253, 248, 0.94), rgba(236, 242, 237, 0.86)),
    var(--white);
  box-shadow: var(--shadow);
}

.contact-copy {
  max-width: 650px;
}

.contact-copy p {
  color: var(--muted);
  font-size: 16px;
}

.contact-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.contact-action {
  display: grid;
  gap: 12px;
  padding: 24px;
  border: 1px solid rgba(20, 33, 28, 0.1);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.82);
}

.contact-label {
  display: block;
  margin-bottom: 12px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 8px;
  color: #fff;
  background: var(--green);
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 14px 28px rgba(31, 138, 91, 0.18);
}

.contact-action p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  width: min(calc(100% - 64px), var(--page-max));
  margin: 0 auto;
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 26px 0 34px;
  border-top: 1px solid rgba(20, 33, 28, 0.1);
  color: var(--muted);
  background: var(--paper);
  font-size: 13px;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}

.beian-link {
  color: var(--muted);
}

.beian-link:hover {
  color: var(--ink);
}

@media (max-width: 980px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: 74svh;
    background-position: 62% center;
  }

  .service-grid,
  .process-list,
  .band-content,
  .platform-strip,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .platform-tags {
    justify-content: flex-start;
  }

  .service-card.featured {
    grid-column: auto;
  }

  .footer-meta,
  .contact {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta {
    justify-content: flex-start;
    gap: 6px;
  }

  .site-footer {
    justify-items: flex-start;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding-top: 112px;
    padding-bottom: 44px;
    background-image:
      linear-gradient(180deg, rgba(247, 244, 237, 0.98) 0%, rgba(247, 244, 237, 0.9) 54%, rgba(247, 244, 237, 0.48) 100%),
      url("/assets/erp-hero.png");
  }

  .hero-inner,
  .section-head,
  .contact-copy {
    inline-size: calc(100dvw - 60px);
    max-inline-size: 330px;
  }

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

  h1 {
    font-size: 56px;
  }

  h2 {
    font-size: 32px;
  }

  .hero-copy,
  .section-head p:not(.eyebrow) {
    font-size: 17px;
  }

  .hero-copy,
  .section-head h2,
  .section-head p:not(.eyebrow) {
    max-inline-size: 330px;
    line-break: anywhere;
    word-break: break-all;
  }

  .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 28px;
  }

  .hero-stats div {
    padding: 12px 0 0;
  }

  .hero-stats dt {
    font-size: 24px;
  }

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

  .service-card,
  .process-list li {
    min-height: auto;
  }
}