:root {
  --text: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --surface: #ffffff;
  --page: #f7f8fb;
  --blue: #2563eb;
  --green: #059669;
  --rose: #be123c;
  --amber: #b45309;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--page);
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 7vw;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(229, 231, 235, 0.85);
  backdrop-filter: blur(16px);
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--blue);
  color: #fff;
  font-size: 15px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  color: #475467;
  font-size: 15px;
}

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

.header-action,
.primary-button,
.secondary-button,
.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  font-weight: 700;
}

.header-action {
  padding: 0 18px;
  color: #fff;
  background: var(--text);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 34px;
  margin: 34px auto 0;
  max-width: 1180px;
  padding: 42px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.96), rgba(75, 48, 45, 0.92)),
    radial-gradient(circle at 84% 24%, rgba(245, 158, 11, 0.45), transparent 30%);
  color: #fff;
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker,
.category,
.price-label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.eyebrow {
  color: #c7d2fe;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 12px 0 14px;
  max-width: 640px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.05;
  overflow-wrap: break-word;
}

.hero-text {
  max-width: 620px;
  margin: 0;
  color: #d8dee9;
  font-size: 17px;
  overflow-wrap: break-word;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.primary-button,
.secondary-button {
  padding: 0 20px;
}

.primary-button {
  background: #fff;
  color: var(--text);
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.34);
  color: #fff;
}

.hero-visual {
  position: relative;
  min-height: 300px;
}

.hero-visual::before {
  position: absolute;
  inset: 36px 24px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 24px);
}

.orbit-card {
  position: absolute;
  display: grid;
  align-content: center;
  width: 170px;
  height: 116px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(12px);
}

.orbit-card span {
  color: #cbd5e1;
  font-size: 12px;
  font-weight: 800;
}

.orbit-card strong {
  margin-top: 8px;
  font-size: 24px;
}

.card-one {
  top: 10px;
  left: 34px;
}

.card-two {
  top: 108px;
  right: 18px;
}

.card-three {
  bottom: 8px;
  left: 96px;
}

.products-section,
.notice-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 0 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 4px 0 6px;
  font-size: 30px;
  line-height: 1.15;
}

.section-heading p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
}

.text-link {
  color: var(--blue);
  font-weight: 700;
  white-space: nowrap;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 760px;
}

.product-card,
.notice-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(17, 24, 39, 0.05);
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 410px;
}

.product-art {
  position: relative;
  display: flex;
  align-items: end;
  min-height: 156px;
  padding: 18px;
  overflow: hidden;
  color: #fff;
}

.product-art::before {
  position: absolute;
  inset: 20px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.product-art strong {
  position: relative;
  z-index: 1;
  font-size: 28px;
  line-height: 1;
}

.art-pro {
  background:
    radial-gradient(circle at 72% 28%, rgba(255, 255, 255, 0.28), transparent 22%),
    linear-gradient(135deg, #111827, #565c66);
}

.art-plus {
  background:
    radial-gradient(circle at 34% 24%, rgba(59, 130, 246, 0.42), transparent 28%),
    linear-gradient(135deg, #1e293b, #7c2d12);
}

.art-api {
  background:
    radial-gradient(circle at 72% 34%, rgba(16, 185, 129, 0.36), transparent 26%),
    linear-gradient(135deg, #172554, #312e81);
}

.art-custom {
  background:
    radial-gradient(circle at 35% 30%, rgba(251, 191, 36, 0.34), transparent 28%),
    linear-gradient(135deg, #27272a, #78350f);
}

.sale-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
  padding: 4px 8px;
  border-radius: 7px;
  background: rgba(190, 18, 60, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.product-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px;
}

.product-body h3 {
  margin: 8px 0 10px;
  font-size: 19px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-row span {
  padding: 3px 8px;
  border: 1px solid #bfdbfe;
  border-radius: 7px;
  color: #1d4ed8;
  background: #eff6ff;
  font-size: 12px;
  font-weight: 700;
}

.product-desc {
  min-height: 48px;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 14px;
}

.price-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.price-label {
  display: block;
  margin-bottom: 4px;
}

.price-row strong {
  font-size: 18px;
}

.cart-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--blue);
  background: #fff;
  font-size: 24px;
  font-weight: 400;
}

.cart-button:hover {
  border-color: var(--blue);
  background: #eff6ff;
}

.compact {
  align-items: center;
}

.notice-date {
  color: var(--muted);
  font-weight: 700;
}

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

.notice-card {
  padding: 22px;
}

.notice-card h3 {
  margin: 0 0 10px;
}

.notice-card p {
  margin: 0;
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.35fr 0.7fr 0.9fr;
  gap: 42px;
  max-width: 1180px;
  margin: 68px auto 0;
  padding: 42px 0;
  border-top: 1px solid var(--line);
}

.footer-brand p {
  max-width: 460px;
  margin: 16px 0 0;
  color: var(--muted);
}

.footer-links,
.contact-panel {
  display: grid;
  align-content: start;
  gap: 12px;
}

.footer-links h2,
.contact-panel h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.footer-links a {
  color: var(--muted);
}

.contact-button {
  justify-content: flex-start;
  width: 100%;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: #fff;
}

.telegram {
  color: #2563eb;
}

.whatsapp {
  color: var(--green);
}

.mail {
  color: var(--amber);
}

.wechat {
  color: var(--green);
}

.copyright {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 0 30px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 1040px) {
  .site-header,
  .hero-section,
  .products-section,
  .notice-section,
  .site-footer,
  .copyright {
    width: min(92vw, 760px);
  }

  .site-header {
    width: 100%;
    padding: 0 4vw;
  }

  .hero-section {
    grid-template-columns: 1fr;
  }

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

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .hero-section,
  .products-section,
  .notice-section,
  .site-footer,
  .copyright {
    width: min(calc(100vw - 48px), 342px) !important;
    max-width: min(calc(100vw - 48px), 342px) !important;
    margin-left: 16px;
    margin-right: 0;
  }

  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .nav-links {
    justify-content: flex-start;
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .header-action {
    display: none;
  }

  .hero-section {
    margin-top: 18px;
    padding: 28px 22px;
    overflow: hidden;
  }

  .hero-copy h1 {
    font-size: 30px;
    line-height: 1.14;
  }

  .hero-text {
    font-size: 16px;
  }

  .hero-visual {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    min-height: auto;
    overflow: visible;
  }

  .hero-visual::before {
    display: none;
  }

  .orbit-card {
    position: static;
    width: 100%;
    min-width: 0;
    height: 86px;
    padding: 18px;
  }

  .card-three {
    grid-column: auto;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-grid,
  .notice-list,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: auto;
  }

  .copyright {
    flex-direction: column;
  }
}