:root {
  --green: #123d3a;
  --deep: #245c56;
  --teal: #66b7ae;
  --cyan: #30bccc;
  --gold: #f3b23a;
  --ink: #17211f;
  --muted: #5c6c68;
  --line: #dde8e4;
  --paper: #f8faf7;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(18, 61, 58, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  font-family: "Avenir Next", "Source Han Sans CN", "Microsoft YaHei", Arial, sans-serif;
}

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;
  gap: 24px;
  min-height: 74px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(18, 61, 58, 0.08);
  background: rgba(248, 250, 247, 0.94);
  backdrop-filter: blur(16px);
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: 196px;
  height: auto;
}

.nav-links {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.4vw, 34px);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover {
  color: var(--green);
}

.language-switch {
  display: inline-flex;
  flex: 0 0 auto;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
}

.lang-btn {
  min-width: 48px;
  min-height: 32px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.lang-btn.active {
  background: var(--green);
  color: var(--white);
}

.hero {
  position: relative;
  min-height: min(760px, calc(100vh - 74px));
  overflow: hidden;
  background: var(--paper);
}

.hero::before {
  position: absolute;
  inset: -10px;
  background-image: url("./assets/hero-export-products.png");
  background-position: center;
  background-size: cover;
  filter: blur(3px);
  transform: scale(1.03);
  content: "";
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(248, 250, 247, 0.92) 0%, rgba(248, 250, 247, 0.78) 36%, rgba(248, 250, 247, 0.42) 72%, rgba(248, 250, 247, 0.2) 100%),
    rgba(248, 250, 247, 0.18);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: min(760px, calc(100vh - 74px));
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  flex-direction: column;
  justify-content: center;
  padding: 64px 0 118px;
}

.hero-content h1 {
  max-width: 640px;
  margin: 0;
  color: var(--green);
  font-size: clamp(38px, 6.7vw, 76px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 590px;
  margin: 24px 0 0;
  color: #253a36;
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.65;
  font-weight: 650;
  text-shadow: 0 1px 18px rgba(248, 250, 247, 0.88);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--deep);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 850;
}

.button.primary {
  background: var(--green);
  color: var(--white);
}

.button.secondary {
  border: 1px solid rgba(18, 61, 58, 0.22);
  background: rgba(255, 255, 255, 0.74);
  color: var(--green);
}

.section {
  padding: clamp(64px, 8vw, 104px) clamp(18px, 4vw, 56px);
}

.section-heading {
  width: min(1080px, 100%);
  margin: 0 auto 34px;
}

.section-heading h2,
.contact-section h2 {
  max-width: 760px;
  margin: 0;
  color: var(--green);
  font-size: clamp(27px, 4.3vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow),
.contact-section p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.intro-grid {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 34px;
  align-items: end;
}

.intro-grid > p {
  margin: 0;
  color: var(--ink);
  font-size: 19px;
  line-height: 1.8;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stats div,
.service-step,
.assurance-panel,
.detail-column,
.category-card,
.smart-copy,
.smart-card,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.stats div {
  padding: 20px 16px;
}

.stats strong {
  display: block;
  color: var(--green);
  font-size: 28px;
  line-height: 1;
}

.stats span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.band {
  background: #eef5f1;
}

.quality-section {
  background: var(--paper);
}

.category-grid {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.category-card {
  overflow: hidden;
}

.category-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.category-card.home img {
  object-position: 12% 72%;
}

.category-card.furniture img {
  object-position: 44% 58%;
}

.category-card.apparel img {
  object-position: 74% 45%;
}

.category-card.smart img {
  object-position: center;
}

.category-body {
  padding: 20px;
}

.category-body h3 {
  margin: 0;
  color: var(--green);
  font-size: 19px;
  line-height: 1.22;
}

.category-body p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag-row span {
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef7f4;
  color: var(--deep);
  font-size: 11px;
  font-weight: 800;
}

.quality-layout {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
}

.assurance-panel {
  padding: 26px;
}

.quality-panel ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quality-panel li {
  position: relative;
  padding-left: 18px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.5;
}

.quality-panel li::before {
  position: absolute;
  top: 0.6em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  content: "";
}

.detail-columns {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.detail-column {
  padding: 22px 20px;
}

.detail-column h3 {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 17px;
}

.detail-column ul,
.smart-copy ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-column li,
.smart-copy li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.52;
}

.detail-column li::before,
.smart-copy li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  content: "";
}

.smart-section {
  background: var(--green);
}

.smart-section .section-heading h2,
.smart-section .section-heading p,
.smart-section .eyebrow {
  color: var(--white);
}

.smart-section .section-heading p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.72);
}

.smart-layout {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.35fr);
  gap: 18px;
}

.smart-copy {
  padding: 26px;
  box-shadow: none;
}

.smart-copy h3 {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 19px;
}

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

.smart-card {
  overflow: hidden;
  box-shadow: none;
}

.smart-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.smart-card h3 {
  margin: 0;
  padding: 14px 16px 16px;
  color: var(--green);
  font-size: 15px;
}

.service-steps {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-step {
  padding: 24px 20px;
}

.service-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.service-step h3 {
  margin: 18px 0 10px;
  color: var(--green);
  font-size: 17px;
}

.service-step p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: 30px;
  align-items: center;
  padding: clamp(64px, 8vw, 104px) clamp(18px, 4vw, 56px);
  background: #eaf3ef;
}

.contact-section > div:first-child {
  width: min(680px, 100%);
  justify-self: end;
}

.contact-panel {
  display: grid;
  justify-self: start;
  width: fit-content;
  min-width: min(236px, 100%);
  max-width: 100%;
  gap: 18px;
  padding: 22px;
  color: var(--green);
  font-size: 18px;
  font-weight: 850;
}

.contact-email {
  display: grid;
  gap: 8px;
}

.contact-email span,
.qr-slot span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.contact-email a {
  overflow-wrap: anywhere;
}

.qr-grid {
  display: grid;
  grid-template-columns: minmax(0, 190px);
  gap: 8px;
}

.qr-slot {
  display: grid;
  gap: 8px;
}

.qr-box {
  display: grid;
  width: clamp(168px, 16vw, 190px);
  aspect-ratio: 1;
  padding: 4px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  text-align: center;
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-slot strong {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px clamp(18px, 4vw, 56px);
  background: var(--green);
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-weight: 750;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.82);
}

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

  .brand img {
    width: 168px;
  }

  .nav-links {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .language-switch {
    margin-left: auto;
  }

  .intro-grid,
  .smart-layout,
  .contact-section {
    grid-template-columns: 1fr;
  }

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

  .contact-section > div:first-child {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .hero {
    background-position: 42% center;
  }

  .hero-shade {
    background: rgba(248, 250, 247, 0.72);
  }

  .hero-content {
    min-height: 640px;
    padding-bottom: 82px;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .hero-copy {
    font-size: 14px;
  }

  .category-grid,
  .detail-columns,
  .smart-gallery,
  .service-steps,
  .stats {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .category-card img {
    height: 210px;
  }

  .contact-panel {
    font-size: 15px;
  }

  .qr-grid {
    grid-template-columns: minmax(0, 168px);
  }
}