:root {
  --ink: #111936;
  --muted: #66708f;
  --line: #e6ebf7;
  --deep: #050d2a;
  --violet: #8c56f5;
  --pink: #f06ec9;
  --blue: #4d7cff;
  --cyan: #38c7ff;
  --shadow: 0 18px 46px rgba(25, 39, 89, .12);
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f8fbff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
}
:focus-visible {
  outline: 3px solid rgba(56, 199, 255, .95);
  outline-offset: 4px;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.skip-link {
  position: fixed;
  left: 18px;
  top: 14px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 6px;
  color: #fff;
  background: #111936;
  transform: translateY(-150%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }

.project-hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  color: #fff;
  background: var(--deep);
  isolation: isolate;
  position: relative;
  overflow: hidden;
}
.project-hero::before,
.project-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}
.project-hero::before {
  background:
    linear-gradient(90deg, rgba(3, 9, 36, .96) 0%, rgba(5, 13, 42, .74) 46%, rgba(5, 13, 42, .28) 100%),
    var(--hero-image) center right / cover no-repeat;
}
.project-hero::after {
  background:
    radial-gradient(circle at 18% 22%, rgba(140, 86, 245, .35), transparent 28%),
    radial-gradient(circle at 82% 32%, rgba(56, 199, 255, .18), transparent 24%),
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
}

.nav {
  position: relative;
  z-index: 4;
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  padding: 42px 0 0;
  display: flex;
  align-items: center;
  gap: clamp(24px, 4.5vw, 62px);
}
.nav-item { position: relative; min-height: 28px; display: inline-flex; align-items: center; }
.nav a,
.nav-trigger {
  position: relative;
  border: 0;
  padding: 0;
  background: transparent;
  color: rgba(255,255,255,.88);
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
}
.nav a:hover,
.nav a.active,
.nav-trigger:hover,
.nav-item:hover .nav-trigger { color: #fff; }
.nav a.active::after,
.nav-trigger.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -13px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet), var(--pink));
  box-shadow: 0 0 18px rgba(183, 106, 248, .75);
}
.nav-trigger { display: inline-flex; align-items: center; gap: 6px; cursor: default; }
.nav-trigger svg { width: 14px; height: 14px; transition: transform .2s ease; }
.nav-item:hover .nav-trigger svg { transform: rotate(180deg); }
.submenu {
  position: absolute;
  left: -18px;
  top: calc(100% + 14px);
  min-width: 236px;
  padding: 10px;
  border: 1px solid rgba(174, 192, 255, .2);
  border-radius: 8px;
  background: rgba(7, 16, 52, .94);
  box-shadow: 0 18px 48px rgba(0,0,0,.32);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.nav-item:hover .submenu,
.nav-item:focus-within .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a {
  display: block;
  padding: 10px 11px;
  border-radius: 5px;
  color: rgba(238,243,255,.82);
  font-size: 13px;
  line-height: 1.35;
}
.submenu a:hover,
.submenu a.current { color: #fff; background: rgba(255,255,255,.08); }

.hero-inner {
  flex: 1;
  display: grid;
  grid-template-columns: .94fr .86fr;
  align-items: center;
  gap: 50px;
  padding: 70px 0 84px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: #dca9ff;
  font-weight: 800;
}
.eyebrow::before {
  content: "";
  width: 4px;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--violet), var(--pink));
}
h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(42px, 5.6vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}
.lead {
  margin: 24px 0 30px;
  max-width: 640px;
  color: rgba(238,243,255,.82);
  font-size: 19px;
}
.meta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid rgba(174,192,255,.22);
  border-radius: 4px;
  color: rgba(238,243,255,.9);
  background: rgba(8,18,59,.48);
}
.hero-panel {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  background: rgba(255,255,255,.08);
  box-shadow: 0 22px 58px rgba(0,0,0,.28);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.hero-panel img { width: 100%; height: 310px; object-fit: cover; }
.panel-body { padding: 22px; }
.panel-body h2 { margin: 0 0 12px; font-size: 21px; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.metric {
  padding: 12px;
  border-radius: 6px;
  background: rgba(255,255,255,.08);
}
.metric strong { display: block; color: #fff; font-size: 24px; line-height: 1; }
.metric span { color: rgba(238,243,255,.65); font-size: 12px; }

.section { padding: 104px 0; background: #fff; }
.section.soft { background: linear-gradient(100deg, #f1f5ff 0%, #fbfdff 48%, #f7f2ff 100%); }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 40px;
}
.section-title {
  position: relative;
  margin: 0;
  padding-left: 16px;
  color: #111936;
  font-size: 25px;
  line-height: 1.25;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 2px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--violet), var(--pink));
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(22,35,78,.05);
}
.card h3 { margin: 0 0 12px; font-size: 19px; color: #15204a; }
.card p { margin: 0; color: var(--muted); }
.list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.list li {
  position: relative;
  padding-left: 24px;
  color: #5f6986;
}
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--violet), var(--pink));
}
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; }
.step {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(22,35,78,.05);
}
.step span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  font-weight: 900;
}
.step h3 { margin: 0 0 8px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.next-projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.next-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(22,35,78,.05);
  transition: transform .2s ease, box-shadow .2s ease;
}
.next-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.next-card img { width: 100%; height: 126px; object-fit: cover; }
.next-card strong { display: block; padding: 14px 16px 16px; color: #15204a; }
.back-row { display: flex; flex-wrap: wrap; gap: 14px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border-radius: 5px;
  color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  font-weight: 800;
}
.button.secondary {
  color: #17204a;
  border: 1px solid var(--line);
  background: #fff;
}
.footer {
  padding: 22px 0;
  color: #77809b;
  background: #fff;
  font-size: 13px;
  text-align: center;
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .container,
  .nav { width: min(100% - 36px, 720px); }
  .nav { gap: 24px; flex-wrap: wrap; overflow: visible; padding-top: 28px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .hero-inner,
  .grid-2,
  .process,
  .next-projects { grid-template-columns: 1fr; }
  .hero-inner { gap: 28px; padding-top: 54px; }
  .project-hero::before {
    background:
      linear-gradient(180deg, rgba(3,9,36,.98) 0%, rgba(5,13,42,.84) 52%, rgba(5,13,42,.42) 100%),
      var(--hero-image) center right / cover no-repeat;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 42px; }
  .lead { font-size: 17px; }
  .metric-grid { grid-template-columns: 1fr; }
  .hero-panel img { height: 220px; }
  .section { padding: 76px 0; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}