:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-soft: #eef4fb;
  --text: #172033;
  --muted: #667085;
  --line: rgba(23, 32, 51, 0.12);
  --brand: #1677ff;
  --brand-strong: #0756c9;
  --accent: #13b981;
  --warning: #ff5a1f;
  --shadow: 0 18px 50px rgba(20, 40, 80, 0.12);
  --radius: 8px;
  --font: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font);
  line-height: 1.6;
}

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

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.site-header__inner,
.section__inner,
.footer__inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
  font-weight: 700;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand span {
  display: block;
  font-size: 18px;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  flex-wrap: wrap;
}

.nav a {
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 15px;
}

.nav a.is-active,
.nav a:hover {
  color: var(--brand-strong);
  background: rgba(22, 119, 255, 0.08);
}

.hero {
  position: relative;
  min-height: 78vh;
  overflow: hidden;
  color: white;
  background:
    linear-gradient(90deg, rgba(12, 24, 44, 0.88), rgba(12, 24, 44, 0.46)),
    var(--hero-image, url("../images/banner_home.jpg")) center / cover no-repeat;
}

.hero__inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 118px 0 86px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 20px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 10px 18px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  background: var(--brand-strong);
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.button--ghost:hover {
  background: rgba(255, 255, 255, 0.22);
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 16px;
  max-width: 580px;
  margin-top: 54px;
}

.metric {
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  padding-top: 14px;
}

.metric strong {
  display: block;
  font-size: 30px;
  line-height: 1.1;
}

.metric span {
  color: rgba(255, 255, 255, 0.72);
}

.section {
  padding: 78px 0;
}

.section--soft {
  background: var(--surface-soft);
}

.section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.section__head h2,
.page-title h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section__head p,
.page-title p {
  max-width: 620px;
  margin: 10px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 22px;
}

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

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

.service-card,
.line-card,
.news-item,
.product-card,
.contact-panel,
.about-panel,
.filter-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 28px rgba(28, 45, 78, 0.08);
}

.service-card {
  overflow: hidden;
}

.service-card__image,
.line-card__image {
  height: 190px;
  background: var(--surface-soft);
}

.service-card__image img,
.line-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card__body,
.line-card__body {
  padding: 22px;
}

.service-card h3,
.line-card h3,
.product-card h3 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.35;
}

.service-card p,
.line-card p,
.product-card p {
  margin: 0;
  color: var(--muted);
}

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

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 6px;
  padding: 4px 9px;
  background: rgba(22, 119, 255, 0.09);
  color: var(--brand-strong);
  font-size: 13px;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.advantage {
  border-left: 4px solid var(--brand);
  padding: 18px 20px;
  background: var(--surface);
}

.advantage strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.advantage span {
  color: var(--muted);
}

.page-title {
  padding: 76px 0 42px;
  background:
    linear-gradient(90deg, rgba(20, 34, 58, 0.9), rgba(20, 34, 58, 0.58)),
    var(--hero-image, url("../images/banner_home.jpg")) center / cover no-repeat;
  color: #fff;
}

.page-title p {
  color: rgba(255, 255, 255, 0.78);
}

.about-layout,
.contact-layout {
  display: grid;
  gap: 28px;
  align-items: start;
}

.about-layout {
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
}

.contact-layout {
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1.22fr);
}

.about-panel,
.contact-panel {
  padding: 28px;
}

.about-panel p {
  margin: 0 0 16px;
  color: var(--muted);
}

.contact-list {
  display: grid;
  gap: 16px;
}

.contact-item {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.contact-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.contact-item span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.contact-item strong {
  display: block;
  margin-top: 3px;
  font-size: 18px;
}

.map-placeholder {
  min-height: 340px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(22, 119, 255, 0.08), rgba(19, 185, 129, 0.08)),
    repeating-linear-gradient(0deg, transparent 0 34px, rgba(23, 32, 51, 0.06) 35px 36px),
    repeating-linear-gradient(90deg, transparent 0 34px, rgba(23, 32, 51, 0.06) 35px 36px);
  color: var(--muted);
  text-align: center;
  padding: 28px;
}

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

.news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
}

.shop-toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto;
  gap: 14px;
  margin-bottom: 18px;
}

.search-box {
  display: flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.search-box input {
  width: 100%;
  border: 0;
  padding: 13px 16px;
  outline: none;
}

.search-box button {
  border: 0;
  min-width: 72px;
  padding: 0 20px;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  word-break: keep-all;
}

.filter-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px;
}

.filter-field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
}

.filter-field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: #fff;
  color: var(--text);
}

.result-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 18px;
  color: var(--muted);
}

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

.product-card {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  min-height: 250px;
  overflow: hidden;
}

.product-card__media {
  position: relative;
  background: var(--surface-soft);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  min-height: 250px;
  object-fit: cover;
}

.product-card__body {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.product-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ensure-list {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
}

.ensure-list li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 99px;
  background: var(--brand);
  vertical-align: middle;
}

.prompt {
  color: var(--warning);
  font-weight: 700;
}

.refuse {
  color: var(--muted);
  font-size: 13px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  align-self: end;
}

.price {
  color: var(--warning);
  font-weight: 800;
  font-size: 24px;
}

.price span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
}

.empty-state {
  display: none;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 42px;
  background: var(--surface);
  color: var(--muted);
  text-align: center;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.pagination button {
  min-width: 40px;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.pagination button.is-active {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.pagination button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.site-footer {
  background: #101827;
  color: rgba(255, 255, 255, 0.78);
}

.hero-split,
.tech-hero__inner,
.marketing-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
  gap: 54px;
  align-items: center;
}

.corporate-showcase {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.22);
}

.corporate-showcase img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}

.corporate-showcase div {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
}

.corporate-showcase strong,
.corporate-showcase span {
  display: block;
}

.corporate-showcase span {
  color: var(--muted);
}

.tech-hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 118px 0 86px;
  color: #eaf4ff;
  background: #07111f;
}

.tech-hero__mesh {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(0, 209, 255, 0.24), transparent 38%),
    linear-gradient(300deg, rgba(31, 255, 176, 0.16), transparent 34%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 92px);
  opacity: 0.88;
}

.tech-hero__inner {
  position: relative;
  z-index: 1;
}

.tech-copy h1,
.marketing-hero h1,
.minimal-hero h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 1.04;
  letter-spacing: 0;
}

.tech-copy p,
.marketing-hero p,
.minimal-hero p {
  max-width: 680px;
  color: var(--muted);
  font-size: 19px;
}

.tech-copy p {
  color: rgba(234, 244, 255, 0.78);
}

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

.dash-card {
  min-height: 160px;
  border: 1px solid rgba(104, 224, 255, 0.24);
  padding: 22px;
  background: rgba(8, 20, 38, 0.68);
  box-shadow: 0 0 42px rgba(0, 209, 255, 0.12);
  backdrop-filter: blur(16px);
}

.dash-card--wide {
  grid-column: 1 / -1;
}

.dash-card span,
.dash-card em {
  display: block;
  color: rgba(234, 244, 255, 0.62);
  font-style: normal;
}

.dash-card strong {
  display: block;
  margin: 10px 0;
  font-size: 42px;
  line-height: 1;
  color: #fff;
}

.signal-line {
  height: 8px;
  margin: 18px 0;
  border-radius: 99px;
  background: linear-gradient(90deg, #18d5ff, #31ffb4);
  box-shadow: 0 0 24px rgba(24, 213, 255, 0.78);
}

.tech-section,
.tech-roadmap {
  background: #0b1526;
  color: #eaf4ff;
}

.tech-section .section__head p,
.tech-roadmap .section__head p {
  color: rgba(234, 244, 255, 0.68);
}

.tech-matrix {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 18px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.process-list div {
  min-height: 118px;
  display: flex;
  align-items: flex-end;
  border: 1px solid rgba(104, 224, 255, 0.2);
  padding: 18px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 20px;
  font-weight: 800;
}

.marketing-strip {
  display: flex;
  justify-content: center;
  gap: 18px;
  padding: 13px 20px;
  background: #ffd88a;
  color: #653600;
  font-weight: 800;
}

.marketing-strip a {
  color: #a13c00;
  text-decoration: underline;
}

.marketing-hero {
  padding: 100px 0 72px;
  background: #fff7ec;
}

.lead-card {
  border: 2px solid #ffbd55;
  padding: 28px;
  background: #fff;
  box-shadow: 14px 14px 0 #ffe0a6;
}

.lead-card strong {
  display: block;
  margin-bottom: 18px;
  font-size: 26px;
}

.lead-card ul {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.conversion-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.conversion-steps div {
  min-height: 136px;
  padding: 22px;
  background: #fff;
  border: 1px solid #ffd6a0;
}

.conversion-steps b,
.conversion-steps span {
  display: block;
}

.conversion-steps b {
  color: var(--warning);
  font-size: 34px;
}

.conversion-steps span {
  margin-top: 20px;
  font-size: 20px;
  font-weight: 800;
}

.marketing-cards {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 1fr;
  gap: 18px;
}

.minimal-hero {
  padding: 132px 0 76px;
  text-align: center;
  background: #fafafa;
}

.minimal-hero h1 {
  max-width: 980px;
  margin: 0 auto;
  color: #111;
}

.minimal-hero p {
  margin: 24px auto 0;
}

.minimal-actions {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-top: 30px;
}

.minimal-actions a {
  color: #0066cc;
  font-weight: 700;
}

.minimal-panels .section__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
}

.minimal-feature {
  min-height: 210px;
  border: 1px solid #ededed;
  border-radius: 8px;
  padding: 28px;
  background: #fff;
}

.minimal-feature--large {
  grid-row: span 2;
  min-height: 436px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.minimal-feature span {
  color: #8a8f98;
}

.minimal-feature strong {
  display: block;
  margin: 18px 0 10px;
  color: #111;
  font-size: 30px;
  line-height: 1.18;
}

.clean-service-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.clean-service-list .service-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  border-width: 0 0 1px;
  box-shadow: none;
  border-radius: 0;
}

.map-panel {
  aspect-ratio: 1208 / 422;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.contact-map-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  padding: 42px 0;
}

.footer__brand {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}

.footer__nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer__bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 13px;
}

@media (max-width: 980px) {
  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero__metrics,
  .grid--3,
  .grid--2,
  .advantage-list,
  .about-layout,
  .contact-layout,
  .filter-panel,
  .product-grid,
  .footer__inner,
  .hero-split,
  .tech-hero__inner,
  .marketing-hero__inner,
  .tech-matrix,
  .process-list,
  .conversion-steps,
  .marketing-cards,
  .minimal-panels .section__inner {
    grid-template-columns: 1fr;
  }

  .section__head,
  .result-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .shop-toolbar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header__inner,
  .section__inner,
  .footer__inner,
  .hero__inner {
    width: min(100% - 24px, 1200px);
  }

  .hero {
    min-height: 680px;
  }

  .hero__inner {
    padding-top: 92px;
  }

  .section {
    padding: 52px 0;
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .corporate-showcase,
  .corporate-showcase img,
  .tech-hero {
    min-height: 360px;
  }

  .tech-dashboard {
    grid-template-columns: 1fr;
  }

  .dash-card--wide,
  .minimal-feature--large {
    grid-column: auto;
    grid-row: auto;
  }

  .minimal-feature--large {
    min-height: 260px;
  }

  .clean-service-list .service-card {
    grid-template-columns: 1fr;
  }

  .product-card__media img {
    min-height: 190px;
  }

  .product-card__footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .news-item {
    align-items: flex-start;
    flex-direction: column;
  }
}