:root {
  --bg: #07131f;
  --bg-soft: #0d1f30;
  --panel: rgba(7, 19, 31, 0.74);
  --surface: #f4f0e8;
  --surface-alt: #eef3f6;
  --text: #0d1b28;
  --text-light: rgba(244, 240, 232, 0.88);
  --muted: #6b7785;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #c79a53;
  --accent-strong: #d8ae6b;
  --shadow: 0 20px 60px rgba(6, 17, 31, 0.16);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1160px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(199, 154, 83, 0.12), transparent 22%),
    linear-gradient(180deg, #f7f6f2 0%, #edf2f4 100%);
  line-height: 1.7;
}

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

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

button {
  font: inherit;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(7, 19, 31, 0.48);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-inner {
  min-height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(199, 154, 83, 0.18), rgba(255, 255, 255, 0.08));
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-text strong,
.site-nav a,
.eyebrow,
.section-kicker,
.button,
.card-index,
.arrow,
.dot {
  font-family: "Manrope", sans-serif;
}

.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-text small {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
}

.hero {
  position: relative;
  min-height: 100vh;
  color: #fff;
  background: #07131f;
  overflow: clip;
}

.hero-slider {
  position: relative;
  min-height: 100vh;
}

.slide {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: end;
  opacity: 0;
  pointer-events: none;
  transition: opacity 700ms ease;
}

.slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.slide-backdrop {
  position: absolute;
  inset: 0;
}

.slide-backdrop::before,
.slide-backdrop::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(14px);
  opacity: 0.8;
}

.slide-backdrop-1 {
  background:
    linear-gradient(120deg, rgba(5, 16, 28, 0.88), rgba(7, 19, 31, 0.44)),
    linear-gradient(135deg, #0f2740 0%, #07131f 52%, #122f49 100%);
}

.slide-backdrop-1::before {
  width: 34vw;
  height: 34vw;
  right: -8vw;
  top: 16vh;
  background: radial-gradient(circle, rgba(199, 154, 83, 0.9), rgba(199, 154, 83, 0));
}

.slide-backdrop-1::after {
  width: 28vw;
  height: 28vw;
  left: -8vw;
  bottom: 12vh;
  background: radial-gradient(circle, rgba(50, 124, 170, 0.56), rgba(50, 124, 170, 0));
}

.slide-backdrop-2 {
  background:
    linear-gradient(120deg, rgba(6, 18, 31, 0.86), rgba(10, 34, 51, 0.52)),
    linear-gradient(145deg, #05111d 0%, #0d2737 44%, #0e4452 100%);
}

.slide-backdrop-2::before {
  width: 24vw;
  height: 24vw;
  right: 12vw;
  top: 14vh;
  background: radial-gradient(circle, rgba(93, 202, 210, 0.5), rgba(93, 202, 210, 0));
}

.slide-backdrop-2::after {
  width: 36vw;
  height: 36vw;
  left: -12vw;
  bottom: -4vw;
  background: radial-gradient(circle, rgba(199, 154, 83, 0.32), rgba(199, 154, 83, 0));
}

.slide-backdrop-3 {
  background:
    linear-gradient(120deg, rgba(4, 14, 26, 0.9), rgba(7, 19, 31, 0.56)),
    linear-gradient(135deg, #07131f 0%, #163349 45%, #203f57 100%);
}

.slide-backdrop-3::before {
  width: 28vw;
  height: 28vw;
  right: -6vw;
  bottom: -4vw;
  background: radial-gradient(circle, rgba(56, 140, 188, 0.42), rgba(56, 140, 188, 0));
}

.slide-backdrop-3::after {
  width: 26vw;
  height: 26vw;
  left: 10vw;
  top: 12vh;
  background: radial-gradient(circle, rgba(218, 174, 107, 0.48), rgba(218, 174, 107, 0));
}

.slide-content {
  position: relative;
  z-index: 1;
  padding-top: 150px;
  padding-bottom: 180px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  font-size: 0.84rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  color: rgba(255, 255, 255, 0.65);
}

.slide h1,
.slide h2,
.section-heading h2,
.intro h2,
.advantages h2,
.contact h2 {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  line-height: 1.1;
}

.slide h1,
.slide h2 {
  max-width: 720px;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
}

.lead {
  max-width: 680px;
  margin: 24px 0 0;
  font-size: clamp(1.02rem, 2vw, 1.25rem);
  color: var(--text-light);
}

.hero-actions,
.slide-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.button:hover,
.button:focus-visible,
.arrow:hover,
.arrow:focus-visible,
.dot:hover,
.dot:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #07131f;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.slide-metrics span {
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.86);
}

.slider-controls {
  position: absolute;
  inset: auto 0 44px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.slider-dots,
.slider-arrows {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.dot,
.arrow {
  border: 0;
  cursor: pointer;
}

.dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  transition: background 220ms ease, transform 220ms ease;
}

.dot.is-active {
  background: var(--accent-strong);
}

.arrow {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transition: background 220ms ease, transform 220ms ease;
}

.section {
  padding: 110px 0;
}

.intro {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.76));
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 48px;
  align-items: start;
}

.intro h2,
.section-heading h2,
.advantages h2,
.contact h2 {
  font-size: clamp(2rem, 4.2vw, 3.35rem);
}

.section-kicker {
  color: var(--accent);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading p:last-child,
.intro p,
.advantage-item p,
.card p,
.contact-panel p {
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.card,
.advantage-item {
  position: relative;
  padding: 30px 26px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(12, 30, 46, 0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card::before,
.advantage-item::before,
.contact-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(199, 154, 83, 0.72), rgba(199, 154, 83, 0));
}

.card-index {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.16em;
}

.card h3,
.advantage-item h3 {
  margin: 0 0 10px;
  font-family: "Manrope", sans-serif;
  font-size: 1.16rem;
}

.advantages {
  background:
    radial-gradient(circle at top right, rgba(199, 154, 83, 0.1), transparent 22%),
    linear-gradient(180deg, #eef2f4 0%, #f8f5ee 100%);
}

.section-heading.narrow {
  max-width: 540px;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.contact {
  padding-bottom: 130px;
}

.contact-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 28px;
  padding: 44px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(130deg, rgba(10, 23, 36, 0.96), rgba(17, 41, 58, 0.96)),
    #07131f;
  box-shadow: 0 30px 80px rgba(6, 17, 31, 0.24);
}

.contact-panel h2,
.contact-panel p,
.contact-list,
.contact-list a {
  color: #fff;
}

.contact-panel p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.76);
}

.contact-list {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-list div {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.contact-list span {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.62);
}

.contact-list strong,
.contact-list a {
  font-family: "Manrope", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
}

.site-footer {
  padding: 0 0 36px;
}

.footer-inner {
  min-height: 72px;
  padding: 0 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(12, 30, 46, 0.08);
}

.footer-inner p,
.footer-inner a {
  color: var(--muted);
}

@media (max-width: 1100px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
  }

  .slide-content {
    padding-bottom: 200px;
  }

  .intro-grid,
  .contact-panel,
  .advantage-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  :root {
    --container: min(100vw - 32px, 1160px);
  }

  .header-inner {
    min-height: 74px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-text small {
    display: none;
  }

  .slide h1,
  .slide h2 {
    font-size: clamp(2.35rem, 12vw, 3.4rem);
  }

  .hero-actions,
  .slide-metrics,
  .slider-controls,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .slider-controls {
    bottom: 28px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .section,
  .contact {
    padding: 88px 0;
  }

  .contact-panel {
    padding: 32px 22px;
  }

  .contact-list {
    padding: 22px;
  }
}