:root {
  --bg: #07111f;
  --bg-deep: #030813;
  --surface: rgba(10, 20, 36, 0.64);
  --surface-strong: rgba(8, 17, 32, 0.88);
  --surface-soft: rgba(157, 203, 255, 0.08);
  --text: #f3f8ff;
  --text-soft: rgba(222, 232, 245, 0.74);
  --line: rgba(159, 201, 255, 0.16);
  --line-strong: rgba(159, 201, 255, 0.28);
  --accent: #85d0ff;
  --accent-strong: #4fa7ff;
  --accent-glow: rgba(79, 167, 255, 0.34);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 18%, rgba(75, 164, 255, 0.2), transparent 24%),
    radial-gradient(circle at 84% 12%, rgba(111, 228, 255, 0.18), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(88, 111, 255, 0.14), transparent 28%),
    linear-gradient(180deg, #08111e 0%, #050c16 46%, #02060d 100%);
  font-family: "Avenir Next", "PingFang SC", "Helvetica Neue", sans-serif;
  line-height: 1.7;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(133, 208, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(133, 208, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 85%);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.05), transparent 14%),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.045), transparent 16%);
  mix-blend-mode: screen;
  pointer-events: none;
}

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

.page-shell {
  position: relative;
  width: min(1328px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.page-shell::before,
.page-shell::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.page-shell::before {
  top: 116px;
  right: -68px;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(133, 208, 255, 0.14);
  border-radius: 42px;
  background:
    linear-gradient(180deg, rgba(133, 208, 255, 0.12), transparent),
    rgba(255, 255, 255, 0.02);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  opacity: 0.4;
  transform: rotate(26deg);
}

.page-shell::after {
  top: 560px;
  left: -132px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(123, 212, 255, 0.18), transparent 70%);
  filter: blur(10px);
  opacity: 0.8;
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 38px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(8, 18, 32, 0.6);
  backdrop-filter: blur(22px) saturate(140%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-radius: 20px;
  background: transparent;
}

.brand-icon {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 16px 28px rgba(79, 167, 255, 0.18));
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-copy strong,
.hero h1,
.section-heading h2,
.summary-card h3,
.service-card h3,
.stack-title,
.contact-title,
.device-card h2 {
  font-family: "Iowan Old Style", "Georgia", "STSong", serif;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 700;
}

.brand-copy em {
  overflow: hidden;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-style: normal;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.site-nav a {
  position: relative;
  padding: 4px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.96fr);
  gap: 32px;
  align-items: stretch;
  margin-bottom: 30px;
}

.hero-copy,
.summary-card,
.about-copy,
.identity-card,
.service-card,
.stack-panel,
.contact-card,
.notice-card,
.hero-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 32px;
  background:
    linear-gradient(180deg, rgba(15, 29, 52, 0.72), rgba(6, 15, 28, 0.72)),
    rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px) saturate(135%);
}

.hero-copy {
  padding: 64px 58px 60px;
}

.hero-copy::before,
.hero-visual::before,
.summary-card::before,
.service-card::before,
.stack-panel::before,
.contact-card::before,
.notice-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 32%);
  pointer-events: none;
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 10px;
  width: 180px;
  height: 180px;
  background:
    radial-gradient(circle, rgba(133, 208, 255, 0.16), transparent 66%),
    radial-gradient(circle at 42% 42%, rgba(255, 255, 255, 0.12), transparent 24%);
  opacity: 0.7;
  pointer-events: none;
}

.eyebrow,
.section-kicker,
.summary-card p,
.identity-title,
.device-label,
.device-mini-title,
.stack-title {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(1.9rem, 3.3vw, 3.3rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero-text {
  margin: 24px 0 0;
  max-width: 40rem;
  color: var(--text-soft);
  font-size: 1.04rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-tags span {
  padding: 8px 14px;
  border: 1px solid rgba(133, 208, 255, 0.18);
  border-radius: 999px;
  background: rgba(133, 208, 255, 0.08);
  color: #e9f5ff;
  font-size: 0.84rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.94rem;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease,
    background-color 220ms ease;
}

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

.button-primary {
  border: 1px solid rgba(133, 208, 255, 0.22);
  background: linear-gradient(180deg, rgba(126, 208, 255, 0.28), rgba(62, 126, 255, 0.2));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 18px 34px rgba(79, 167, 255, 0.18);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.hero-visual {
  min-height: 590px;
  padding: 34px;
}

.visual-orbit {
  position: absolute;
  border: 1px solid rgba(133, 208, 255, 0.12);
  border-radius: 50%;
}

.visual-orbit-large {
  top: -18%;
  right: -10%;
  width: 360px;
  height: 360px;
}

.visual-orbit-small {
  left: -10%;
  bottom: 12%;
  width: 190px;
  height: 190px;
}

.visual-grid {
  position: absolute;
  inset: 12% 8% 20% 18%;
  border: 1px solid rgba(133, 208, 255, 0.16);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(133, 208, 255, 0.08), rgba(133, 208, 255, 0.02)),
    repeating-linear-gradient(0deg, transparent 0 18px, rgba(133, 208, 255, 0.07) 18px 19px),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(133, 208, 255, 0.07) 18px 19px);
  opacity: 0.52;
  transform: rotate(-8deg);
}

.visual-ray {
  position: absolute;
  top: 50%;
  left: -8%;
  width: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(133, 208, 255, 0.42), transparent);
  opacity: 0.78;
  transform: rotate(-14deg);
  transform-origin: left center;
}

.floating-chip {
  position: absolute;
  z-index: 1;
  padding: 14px 16px;
  border: 1px solid rgba(133, 208, 255, 0.18);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(18, 36, 64, 0.9), rgba(8, 16, 29, 0.88)),
    rgba(255, 255, 255, 0.02);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 18px 36px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(14px);
}

.floating-chip span {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.floating-chip strong {
  color: #f8fbff;
  font-size: 0.92rem;
}

.floating-chip-top {
  top: 11%;
  left: 3%;
  transform: rotate(-6deg);
}

.floating-chip-bottom {
  bottom: 8%;
  left: 8%;
  transform: rotate(4deg);
}

.device-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  z-index: 2;
}

.device-card {
  position: absolute;
  border: 1px solid var(--line-strong);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(19, 40, 69, 0.9), rgba(7, 16, 30, 0.92)),
    rgba(255, 255, 255, 0.03);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 22px 40px rgba(0, 0, 0, 0.28);
}

.device-card-main {
  z-index: 2;
  width: min(100%, 340px);
  min-height: 420px;
  padding: 22px;
}

.device-card-side {
  top: 12%;
  right: 2%;
  z-index: 1;
  width: 180px;
  min-height: 200px;
  padding: 18px;
  transform: rotate(8deg);
  background:
    linear-gradient(180deg, rgba(17, 31, 54, 0.84), rgba(10, 16, 28, 0.84)),
    rgba(255, 255, 255, 0.02);
}

.device-topbar {
  display: flex;
  gap: 8px;
}

.device-topbar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.34);
}

.device-label,
.device-mini-title {
  margin: 18px 0 10px;
  color: var(--accent);
  font-size: 0.72rem;
}

.device-card h2 {
  margin: 0 0 18px;
  font-size: 2.4rem;
  line-height: 1;
}

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

.device-list li,
.stack-lines span {
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.device-meter {
  margin-top: 18px;
  padding: 16px;
  border-radius: 20px;
  background: rgba(133, 208, 255, 0.08);
}

.device-meter span {
  display: block;
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 0.8rem;
}

.device-meter strong {
  font-size: 0.95rem;
}

.stack-lines {
  display: grid;
  gap: 10px;
}

.signal-card {
  position: absolute;
  right: 6%;
  bottom: 5%;
  z-index: 3;
  padding: 16px 18px;
  border: 1px solid rgba(133, 208, 255, 0.2);
  border-radius: 20px;
  background: rgba(6, 15, 28, 0.86);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.24);
}

.signal-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--text-soft);
  font-size: 0.8rem;
}

.signal-card strong {
  color: #f8fbff;
  font-size: 1rem;
}

.summary-grid,
.about-layout,
.service-grid,
.stack-layout,
.contact-layout {
  display: grid;
  gap: 22px;
}

.summary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.summary-card,
.service-card,
.stack-panel,
.contact-card,
.notice-card,
.about-copy,
.identity-card {
  padding: 28px;
}

.summary-card::after {
  content: "";
  position: absolute;
  top: 18px;
  right: 20px;
  width: 94px;
  height: 94px;
  background-image: radial-gradient(circle, rgba(133, 208, 255, 0.22) 1.4px, transparent 1.4px);
  background-size: 16px 16px;
  mask-image: linear-gradient(135deg, transparent 10%, black 34%);
  opacity: 0.42;
}

.summary-card p {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.74rem;
}

.summary-card h3 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.summary-card span,
.about-copy p,
.service-card p,
.contact-list span,
.notice-card p,
.identity-card dt,
.capability-list span {
  color: var(--text-soft);
}

.content-section {
  margin-top: 18px;
  padding: 28px 0 10px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.2rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.about-layout,
.contact-layout {
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
}

.about-copy p,
.notice-card p {
  margin: 0 0 16px;
  font-size: 1rem;
}

.about-copy p:last-child,
.notice-card p:last-child {
  margin-bottom: 0;
}

.identity-title,
.contact-title {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.82rem;
}

.identity-card dl,
.capability-list {
  display: grid;
  gap: 16px;
  margin: 0;
}

.identity-card div,
.capability-list div {
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(159, 201, 255, 0.12);
}

.identity-card div:last-child,
.capability-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.identity-card dt,
.capability-list span {
  margin-bottom: 6px;
  font-size: 0.88rem;
}

.identity-card dd,
.capability-list strong {
  margin: 0;
  color: #f8fbff;
  font-size: 1rem;
  font-weight: 600;
}

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

.service-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(133, 208, 255, 0.16);
  background: rgba(133, 208, 255, 0.08);
  color: var(--accent);
  font-size: 0.8rem;
}

.service-card h3 {
  margin: 18px 0 12px;
  font-size: 1.42rem;
}

.service-card::after,
.stack-panel::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 84px;
  height: 84px;
  border-right: 1px solid rgba(133, 208, 255, 0.18);
  border-bottom: 1px solid rgba(133, 208, 255, 0.18);
  border-radius: 0 0 26px 0;
  opacity: 0.5;
}

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

.stack-title {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
}

.stack-panel-dark {
  background:
    linear-gradient(180deg, rgba(9, 16, 30, 0.92), rgba(5, 10, 18, 0.94)),
    rgba(255, 255, 255, 0.02);
}

.process-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
  color: #f7fbff;
}

.process-list li {
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.contact-section {
  margin-bottom: 16px;
}

.notice-card {
  background:
    linear-gradient(180deg, rgba(18, 34, 58, 0.84), rgba(7, 15, 28, 0.82)),
    linear-gradient(135deg, rgba(133, 208, 255, 0.08), transparent 42%);
}

.contact-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(159, 201, 255, 0.12);
}

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

.contact-list strong {
  max-width: 68%;
  color: #f8fbff;
  font-size: 0.98rem;
  text-align: right;
}

.contact-list a {
  text-decoration: underline;
  text-decoration-color: rgba(133, 208, 255, 0.34);
  text-underline-offset: 4px;
}

.site-footer {
  padding: 30px 8px 12px;
  color: rgba(222, 232, 245, 0.56);
  font-size: 0.92rem;
  text-align: center;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .about-layout,
  .contact-layout,
  .stack-layout {
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    min-height: 480px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 20px, 1328px);
    padding-top: 16px;
  }

  .page-shell::before,
  .page-shell::after {
    display: none;
  }

  .site-header {
    position: static;
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
  }

  .hero-copy,
  .summary-card,
  .about-copy,
  .identity-card,
  .service-card,
  .stack-panel,
  .contact-card,
  .notice-card,
  .hero-visual {
    padding: 22px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(1.7rem, 7.2vw, 2.5rem);
  }

  .summary-grid,
  .service-grid,
  .stack-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 520px;
  }

  .device-stage {
    justify-content: flex-start;
  }

  .device-card-main {
    position: relative;
    width: 100%;
    min-height: auto;
  }

  .device-card-side {
    top: auto;
    right: 0;
    bottom: 126px;
    width: 160px;
  }

  .signal-card {
    right: 0;
    bottom: 42px;
  }

  .visual-grid {
    inset: 14% 2% 24% 14%;
  }

  .floating-chip {
    padding: 12px 14px;
  }

  .floating-chip-top {
    top: 4%;
    left: 0;
    transform: none;
  }

  .floating-chip-bottom {
    left: 0;
    bottom: 0;
    max-width: calc(100% - 170px);
    transform: none;
  }

  .contact-list li {
    flex-direction: column;
  }

  .contact-list strong {
    max-width: none;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}