:root {
  color-scheme: light;
  --accent: #00bd53;
  --accent-2: #00dd77;
  --cyan: #23c7ff;
  --amber: #f6b84b;
  --ink: #07100d;
  --muted: rgba(7, 16, 13, 0.66);
  --line: rgba(7, 16, 13, 0.1);
  --surface: #ffffff;
  --soft: #f5f8f6;
  --dark: #07100d;
  --dark-2: #0c1c18;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--soft);
  color: var(--ink);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui,
    sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(18px, 4vw, 54px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  transition:
    background 0.2s ease,
    box-shadow 0.2s ease,
    height 0.2s ease;
}

.site-header.is-scrolled {
  height: 64px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 168px;
}

.brand img {
  width: 210px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 30px);
  color: rgba(7, 16, 13, 0.76);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 23px 0;
  white-space: nowrap;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 16px;
  left: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
  content: "";
}

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

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  min-height: 760px;
  grid-template-columns: minmax(0, 1fr) minmax(290px, 420px);
  align-items: end;
  gap: 36px;
  padding: 150px clamp(22px, 6vw, 84px) 74px;
  overflow: hidden;
  color: #fff;
}

.hero-media,
.hero-overlay,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-media {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(7, 16, 13, 0.25) 100%),
    url("./assets/image2.png") center bottom / cover no-repeat;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 16, 13, 0.96) 0%, rgba(7, 16, 13, 0.78) 45%, rgba(7, 16, 13, 0.28) 100%),
    linear-gradient(180deg, rgba(7, 16, 13, 0.1), rgba(7, 16, 13, 0.78));
}

.hero-grid {
  opacity: 0.22;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.18) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px 92px);
  mask-image: linear-gradient(90deg, #000, transparent 70%);
}

.hero-content,
.hero-panel {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 840px;
  margin: 0;
  font-size: clamp(44px, 7vw, 82px);
  font-weight: 900;
  line-height: 1.08;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.hero-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.hero-panel div {
  min-height: 126px;
  padding: 24px;
  background: rgba(7, 16, 13, 0.5);
}

.hero-panel strong {
  display: block;
  color: var(--accent-2);
  font-size: 38px;
  line-height: 1;
}

.hero-panel span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}

.section {
  padding: 88px clamp(22px, 6vw, 84px);
}

.section-head {
  max-width: 850px;
  margin-bottom: 34px;
}

.section-head.centered {
  max-width: 1050px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.16;
}

.section-head p:not(.eyebrow),
.green-layout p,
.platform-layout p,
.profile-copy p {
  color: var(--muted);
}

.profile {
  background: #fff;
}

.profile-layout,
.green-layout,
.platform-layout,
.culture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
  align-items: center;
  gap: clamp(28px, 5vw, 68px);
  max-width: 1500px;
  margin: 0 auto;
}

.profile-copy {
  max-width: 720px;
  font-size: 16px;
}

.cert-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.cert-strip span {
  padding: 8px 12px;
  border: 1px solid rgba(0, 189, 83, 0.26);
  border-radius: 8px;
  background: rgba(0, 189, 83, 0.08);
  color: #057a39;
  font-size: 13px;
  font-weight: 800;
}

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

.image-frame img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.services {
  background:
    linear-gradient(180deg, #f5f8f6, #ffffff 55%, #f5f8f6),
    repeating-linear-gradient(90deg, rgba(7, 16, 13, 0.06) 0 1px, transparent 1px 84px);
}

.service-grid,
.product-grid,
.case-grid {
  display: grid;
  max-width: 1500px;
  margin: 0 auto;
  gap: 18px;
}

.service-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-grid article {
  min-height: 245px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}

.service-grid span {
  color: var(--accent);
  font-size: 24px;
  font-weight: 900;
}

.service-grid h3,
.product-card h3,
.product-card h4,
.case-grid h3,
.culture-list h3 {
  margin: 12px 0 8px;
  font-size: 21px;
  line-height: 1.28;
}

.service-grid p,
.product-card p,
.case-grid p,
.culture-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.green-power {
  background: var(--dark);
  color: #fff;
}

.green-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1fr);
}

.green-layout p {
  color: rgba(255, 255, 255, 0.72);
}

.logic-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.logic-board div {
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 189, 83, 0.24), rgba(35, 199, 255, 0.08)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 42px);
  color: #fff;
  font-size: 22px;
  font-weight: 900;
}

.products {
  background: #fff;
}

.product-group {
  max-width: 1500px;
  margin: 0 auto;
}

.product-group + .product-group {
  margin-top: 38px;
}

.product-group > h3 {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin: 0 0 18px;
  padding: 0 14px;
  border: 1px solid rgba(0, 189, 83, 0.24);
  border-radius: 8px;
  background: rgba(0, 189, 83, 0.08);
  color: #057a39;
  font-size: 16px;
  font-weight: 900;
}

.product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.product-card img {
  width: 100%;
  height: 205px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(0, 189, 83, 0.08), rgba(35, 199, 255, 0.04)),
    #f7faf8;
  object-fit: contain;
}

.product-card div {
  padding: 22px;
}

.product-card span {
  color: #058d43;
  font-size: 12px;
  font-weight: 900;
}

.platform {
  background: var(--dark-2);
  color: #fff;
}

.platform-layout {
  grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1.18fr);
}

.platform-layout p {
  color: rgba(255, 255, 255, 0.72);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.value-grid div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.value-grid strong {
  display: block;
  color: var(--accent-2);
  font-size: 30px;
  line-height: 1;
}

.value-grid span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.dashboard-stack {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 14px;
}

.dashboard-stack img {
  width: 100%;
  height: 230px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.28);
}

.dashboard-stack img:first-child {
  grid-row: span 2;
  height: 474px;
}

.cases {
  background: #f5f8f6;
}

.case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.07);
}

.case-grid img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.case-grid h3,
.case-grid p {
  padding-right: 22px;
  padding-left: 22px;
}

.case-grid span {
  display: inline-flex;
  margin: 18px 22px 0;
  color: #058d43;
  font-size: 12px;
  font-weight: 900;
}

.case-grid h3 {
  margin-top: 8px;
}

.case-grid p {
  padding-bottom: 24px;
}

.culture {
  background:
    linear-gradient(90deg, rgba(7, 16, 13, 0.94), rgba(7, 16, 13, 0.82)),
    url("./assets/image171.png") center bottom / cover no-repeat;
  color: #fff;
}

.culture-list {
  display: grid;
  gap: 14px;
}

.culture-list article {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.culture-list p {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(320px, 1fr);
  gap: 28px;
  padding: 42px clamp(22px, 6vw, 84px);
  border-top: 1px solid var(--line);
  background: #fff;
}

.site-footer img {
  width: 210px;
}

.site-footer p {
  margin: 14px 0 0;
  color: var(--muted);
}

.site-footer address {
  display: grid;
  gap: 10px;
  color: rgba(7, 16, 13, 0.74);
  font-style: normal;
}

.site-footer a {
  color: #058d43;
  font-weight: 800;
}

.site-footer .beian-link {
  color: rgba(7, 16, 13, 0.46);
  font-size: 13px;
  font-weight: 500;
}

.site-footer .beian-link:hover {
  color: rgba(7, 16, 13, 0.72);
}

@media (max-width: 1180px) {
  .hero,
  .profile-layout,
  .green-layout,
  .platform-layout,
  .culture-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 620px;
  }

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

@media (max-width: 820px) {
  .site-header {
    height: 64px;
  }

  .brand img {
    width: 176px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 12px 10px;
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    min-height: 720px;
    padding-top: 120px;
  }

  .hero h1 {
    font-size: clamp(38px, 11vw, 58px);
  }

  .section {
    padding-top: 68px;
    padding-bottom: 68px;
  }

  .service-grid,
  .product-grid,
  .case-grid,
  .value-grid,
  .dashboard-stack,
  .logic-board {
    grid-template-columns: 1fr;
  }

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

  .dashboard-stack img,
  .dashboard-stack img:first-child {
    height: 235px;
  }

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

@media (max-width: 560px) {
  .hero-panel {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .product-card img,
  .case-grid img,
  .image-frame img {
    height: 210px;
  }
}