:root {
  --navy: #0F172A;
  --navy-2: #111827;
  --blue: #2563EB;
  --cyan: #06B6D4;
  --yellow: #ffd76d;
  --ink: #1F2937;
  --muted: #475569;
  --line: #E2E8F0;
  --glass: rgba(255, 255, 255, .72);
  --shadow: 0 18px 54px rgba(15, 23, 42, .10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: #F8FAFC;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.site-cursor {
  position: fixed;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(62, 231, 255, .8);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1000;
  transform: translate(-50%, -50%);
  transition: width .2s, height .2s, opacity .2s;
  opacity: 0;
}

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 50;
  width: min(1160px, calc(100% - 32px));
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(226, 232, 240, .84);
  border-radius: 22px;
  box-shadow: 0 16px 44px rgba(15, 23, 42, .20);
  backdrop-filter: blur(14px);
  transition: background .25s, color .25s, top .25s;
}

.site-header.scrolled {
  top: 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, .88);
}

.brand,
.nav-links,
.hero-actions,
.contact-list a,
.contact-list span {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--navy);
  background: linear-gradient(135deg, var(--yellow), #fff5bf);
  border-radius: 12px;
}

.nav-links {
  gap: 30px;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  position: relative;
  opacity: .86;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s;
}

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

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 14px;
  color: inherit;
  background: rgba(255, 255, 255, .12);
}

.hero {
  position: relative;
  min-height: 860px;
  padding: 116px 24px 70px;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(248, 250, 252, .96) 0%, rgba(248, 250, 252, .88) 42%, rgba(248, 250, 252, .62) 100%),
    url("./images/hero-background.png?v=art-20260627") center / cover no-repeat,
    #F8FAFC;
  overflow: hidden;
}

.starfield,
.orb {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.starfield {
  opacity: .22;
  mix-blend-mode: multiply;
}

.orb {
  inset: auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  filter: blur(8px);
  opacity: .42;
  animation: float 8s ease-in-out infinite;
}

.orb-a {
  right: 12%;
  top: 18%;
  background: radial-gradient(circle, rgba(6, 182, 212, .12), transparent 64%);
}

.orb-b {
  left: 10%;
  bottom: 10%;
  background: radial-gradient(circle, rgba(37, 99, 235, .08), transparent 64%);
  animation-delay: -3s;
}

.hero-inner,
.section,
.site-footer {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  align-items: center;
  gap: 46px;
  min-height: 660px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-panel h2 {
  margin: 0;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 560px;
  font-size: clamp(48px, 5.1vw, 68px);
  line-height: 1.1;
  font-weight: 900;
}

.hero h1 span {
  display: block;
}

.hero-lead {
  max-width: 560px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.72;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .25s, box-shadow .25s, background .25s;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 14px 34px rgba(37, 99, 235, .22);
}

.btn.ghost {
  color: var(--ink);
  border: 1px solid rgba(37, 99, 235, .16);
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(14px);
}

.hero-visual {
  position: relative;
  perspective: 1000px;
}

.hero-visual img {
  width: 100%;
  border-radius: 34px;
  box-shadow: 0 26px 70px rgba(15, 23, 42, .16);
  animation: float 6.5s ease-in-out infinite;
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 18px;
  color: var(--ink);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 16px 42px rgba(15, 23, 42, .12);
  backdrop-filter: blur(16px);
  animation: bob 4.8s ease-in-out infinite;
}

.card-cloud {
  left: -18px;
  top: 18%;
}

.card-ai {
  right: -10px;
  bottom: 16%;
  animation-delay: -2s;
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 28px;
  width: 28px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 999px;
  transform: translateX(-50%);
}

.scroll-hint span {
  position: absolute;
  left: 50%;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
  transform: translateX(-50%);
  animation: scrollDot 1.5s infinite;
}

.section {
  padding: 76px 0;
  scroll-margin-top: 110px;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading h2,
.contact-panel h2 {
  font-size: clamp(32px, 4vw, 50px);
}

.section-heading p:last-child,
.contact-panel > div > p {
  color: var(--muted);
  line-height: 1.8;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
}

.about-image,
.about-content,
.service-card,
.news-card,
.contact-panel {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}

.trust-strip div {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, .9);
  box-shadow: var(--shadow);
}

.trust-strip strong {
  display: block;
  color: var(--navy);
  font-size: 28px;
  white-space: nowrap;
}

.trust-strip span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.about-image {
  overflow: hidden;
  border-radius: 24px;
  background: #fff;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s;
}

.about-image:hover img,
.service-card:hover img {
  transform: scale(1.06);
}

.about-content {
  padding: 34px 36px;
  border-radius: 24px;
  background: rgba(255, 255, 255, .92);
}

.about-content h3 {
  margin: 0 0 12px;
  font-size: 24px;
}

.about-content p,
.value-list {
  color: var(--muted);
  line-height: 1.8;
}

.value-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.value-list i {
  margin-right: 10px;
  color: var(--blue);
}

.services {
  position: relative;
}

.service-grid,
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.service-card {
  overflow: hidden;
  border-radius: 24px;
  background: #fff;
  transition: transform .3s, box-shadow .3s;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 68px rgba(37, 99, 235, .16);
}

.service-card img {
  width: 100%;
  aspect-ratio: 1.55 / 1;
  object-fit: cover;
  transition: transform .6s;
}

.service-body {
  padding: 24px 24px 28px;
}

.service-body > i {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 16px;
  box-shadow: 0 12px 26px rgba(37, 99, 235, .18);
}

.service-body h3,
.news-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
}

.service-body p,
.news-card p {
  color: var(--muted);
  line-height: 1.75;
}

.service-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.service-points span {
  padding: 7px 10px;
  color: #1d4f91;
  font-size: 13px;
  font-weight: 700;
  background: rgba(36, 107, 255, .08);
  border: 1px solid rgba(36, 107, 255, .12);
  border-radius: 999px;
}

.news {
  width: 100%;
  max-width: none;
  padding-left: max(16px, calc((100% - 1160px) / 2));
  padding-right: max(16px, calc((100% - 1160px) / 2));
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0), #F8FAFC 18%, #F8FAFC 100%);
}

.news-card {
  min-height: 260px;
  padding: 28px;
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .94), rgba(255, 255, 255, .74)),
    radial-gradient(circle at top right, rgba(6, 182, 212, .10), transparent 42%);
  transition: transform .3s;
}

.news-card:hover {
  transform: translateY(-8px);
}

.news-card time {
  color: var(--blue);
  font-weight: 900;
}

.contact-panel {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 36px;
  padding: 40px;
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 10%, rgba(6, 182, 212, .18), transparent 32%),
    linear-gradient(135deg, var(--navy), var(--navy-2));
}

.contact-panel p {
  color: rgba(255, 255, 255, .7);
}

.contact-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-list a,
.contact-list span {
  gap: 12px;
  min-height: 68px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 20px;
  background: rgba(255, 255, 255, .08);
}

.contact-list i {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  color: var(--navy);
  background: var(--cyan);
  border-radius: 12px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 36px 0 46px;
  color: var(--muted);
}

.site-footer strong {
  color: var(--ink);
}

.site-footer p {
  margin: 8px 0 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: .12s;
}

.delay-2 {
  transition-delay: .24s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

@keyframes bob {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -12px, 0); }
}

@keyframes scrollDot {
  0% { opacity: 0; transform: translate(-50%, 0); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 18px); }
}

@media (max-width: 900px) {
  .site-header {
    border-radius: 20px;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 10px;
    border-radius: 20px;
    color: var(--ink);
    background: rgba(255, 255, 255, .94);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 14px 12px;
  }

  .hero {
    padding-top: 120px;
  }

  .hero-inner,
  .about-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero h1 {
    font-size: clamp(40px, 12vw, 64px);
  }

  .service-grid,
  .news-grid,
  .trust-strip,
  .contact-list {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .hero,
  .section {
    padding-left: 0;
    padding-right: 0;
  }

  .hero-inner,
  .section,
  .site-footer {
    width: min(100% - 28px, 1160px);
  }

  .brand {
    max-width: calc(100% - 58px);
    font-size: 14px;
  }

  .floating-card {
    display: none;
  }

  .about-content,
  .contact-panel {
    padding: 24px;
  }
}