:root {
  --orange: #f26a21;
  --orange-dark: #d94f0d;
  --ink: #17202a;
  --muted: #5f6f7e;
  --line: rgba(23, 32, 42, 0.12);
  --sky: #eaf6ff;
  --teal: #1f9b8f;
  --paper: #ffffff;
  --soft: #f6f8fb;
  --shadow: 0 18px 50px rgba(14, 42, 66, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: 100%;
  min-height: 72px;
  padding: 0 clamp(22px, 5vw, 80px);
  color: #fff;
  background: linear-gradient(180deg, rgba(18, 31, 45, 0.34), rgba(18, 31, 45, 0));
}

.site-header.compact {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand,
.main-nav,
.header-actions,
.hero-buttons,
.site-footer,
.quick-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  background: var(--orange);
  border-radius: 50% 50% 42% 42%;
  box-shadow: 0 8px 18px rgba(242, 106, 33, 0.32);
}

.brand-text {
  letter-spacing: 0;
}

.main-nav {
  justify-content: center;
  gap: clamp(18px, 3vw, 44px);
  font-size: 15px;
  font-weight: 600;
}

.main-nav a {
  opacity: 0.9;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--orange);
  opacity: 1;
}

.header-actions {
  justify-content: flex-end;
  gap: 12px;
}

.ghost-button,
.solid-button,
.primary-button,
.secondary-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.ghost-button {
  min-width: 104px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.78);
}

.compact .ghost-button {
  border-color: var(--line);
}

.solid-button,
.primary-button {
  min-width: 112px;
  padding: 0 24px;
  color: #fff;
  background: var(--orange);
  box-shadow: 0 12px 24px rgba(242, 106, 33, 0.24);
}

.solid-button:hover,
.primary-button:hover {
  background: var(--orange-dark);
}

.secondary-button {
  min-width: 112px;
  padding: 0 24px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.86);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: var(--sky);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.76) 29%, rgba(255, 255, 255, 0.18) 58%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0));
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(560px, calc(100% - 44px));
  padding-top: clamp(150px, 24vh, 230px);
  margin-left: clamp(22px, 8vw, 136px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0;
  font-size: clamp(40px, 6.4vw, 84px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 520px;
  margin: 24px 0 34px;
  color: #40515f;
  font-size: clamp(17px, 1.65vw, 22px);
  line-height: 1.75;
}

.hero-buttons {
  gap: 16px;
  flex-wrap: wrap;
}

.hero-dots {
  position: absolute;
  bottom: 36px;
  left: 50%;
  z-index: 3;
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 11px 20px;
  background: rgba(255, 255, 255, 0.84);
  border-radius: 999px;
  transform: translateX(-50%);
  box-shadow: 0 10px 24px rgba(20, 54, 78, 0.12);
}

.hero-dots span {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(23, 32, 42, 0.22);
}

.hero-dots .active {
  width: 22px;
  background: var(--ink);
}

.quick-links {
  position: relative;
  z-index: 4;
  width: min(1100px, calc(100% - 44px));
  margin: -42px auto 0;
  padding: 18px;
  gap: 12px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.quick-links a {
  flex: 1;
  min-height: 84px;
  padding: 18px 20px;
  border-radius: 6px;
  background: var(--soft);
}

.quick-links a:hover {
  color: #fff;
  background: var(--orange);
}

.quick-links strong,
.quick-links span {
  display: block;
}

.quick-links span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.quick-links a:hover span {
  color: rgba(255, 255, 255, 0.86);
}

.section {
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(76px, 9vw, 118px) 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.8fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: end;
}

.section h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.16;
  letter-spacing: 0;
}

.intro p:last-child,
.scenario-copy p,
.business-card p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.section-heading {
  margin-bottom: 32px;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.business-grid .section-heading {
  grid-column: 1 / -1;
}

.business-card {
  min-height: 310px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.business-card:hover {
  border-color: rgba(242, 106, 33, 0.32);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.business-card.featured {
  color: #fff;
  background:
    linear-gradient(145deg, rgba(23, 32, 42, 0.94), rgba(31, 155, 143, 0.86)),
    var(--ink);
}

.business-card.featured p,
.business-card.featured .card-index {
  color: rgba(255, 255, 255, 0.78);
}

.card-index {
  color: var(--orange);
  font-weight: 800;
}

.business-card h3 {
  margin: 34px 0 16px;
  font-size: 24px;
  letter-spacing: 0;
}

.business-card a {
  display: inline-block;
  margin-top: 20px;
  color: var(--orange);
  font-weight: 800;
}

.business-card.featured a {
  color: #fff;
}

.full-band {
  background:
    linear-gradient(135deg, rgba(23, 32, 42, 0.96), rgba(23, 32, 42, 0.86)),
    radial-gradient(circle at 78% 24%, rgba(242, 106, 33, 0.42), transparent 30%);
}

.band-inner {
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(76px, 9vw, 118px) 0;
}

.light h2 {
  color: #fff;
}

.tech-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.tech-list div {
  min-height: 150px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.tech-list strong,
.tech-list span {
  display: block;
}

.tech-list strong {
  color: #fff;
  font-size: 22px;
}

.tech-list span {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.75;
}

.scenario-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(360px, 1fr);
  gap: clamp(26px, 5vw, 78px);
  align-items: stretch;
}

.scenario-copy {
  padding: 34px 0;
}

.scenario-copy h3 {
  margin: 0 0 16px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
}

.scenario-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: stretch;
}

.scenario-metrics div {
  display: flex;
  min-height: 190px;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  border-radius: 8px;
  background: var(--soft);
}

.scenario-metrics strong {
  color: var(--orange);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}

.scenario-metrics span {
  margin-top: 16px;
  color: var(--muted);
}

.site-footer {
  justify-content: space-between;
  gap: 22px;
  padding: 34px clamp(22px, 5vw, 80px);
  color: rgba(255, 255, 255, 0.76);
  background: var(--ink);
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: #fff;
}

.site-footer span {
  margin-top: 6px;
}

.site-footer .footer-record {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.site-footer a.footer-record:hover {
  color: #fff;
}

.site-footer .police-record {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-footer .police-record img {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.site-footer nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.construction-page {
  min-height: 100vh;
  background:
    linear-gradient(125deg, rgba(234, 246, 255, 0.92), rgba(255, 255, 255, 0.9)),
    var(--soft);
}

.construction-main {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 120px 22px 52px;
}

.construction-panel {
  width: min(680px, 100%);
  padding: clamp(34px, 7vw, 66px);
  text-align: center;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.construction-panel h1 {
  margin: 0;
  font-size: clamp(38px, 6vw, 68px);
  letter-spacing: 0;
}

.construction-panel p:not(.section-kicker) {
  max-width: 500px;
  margin: 20px auto 30px;
  color: var(--muted);
  line-height: 1.85;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 66px;
  }

  .main-nav {
    display: none;
  }

  .hero-content {
    padding-top: 132px;
  }

  .quick-links,
  .business-grid,
  .tech-list,
  .scenario-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quick-links {
    display: grid;
  }

  .intro,
  .scenario-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0 16px;
  }

  .brand-text {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .header-actions .ghost-button {
    display: none;
  }

  .solid-button,
  .primary-button,
  .secondary-button {
    min-width: 98px;
    padding: 0 18px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-image {
    object-position: 64% center;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.84) 48%, rgba(255, 255, 255, 0.16) 100%),
      linear-gradient(90deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0));
  }

  .hero-content {
    width: calc(100% - 32px);
    margin-left: 16px;
  }

  .quick-links,
  .business-grid,
  .tech-list,
  .scenario-metrics {
    grid-template-columns: 1fr;
  }

  .business-card {
    min-height: 250px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}