:root {
  color-scheme: dark;
  --ink: #f4fff9;
  --muted: #a8c3c5;
  --paper: #07111f;
  --deep: #030712;
  --panel: rgba(8, 22, 38, 0.72);
  --line: rgba(83, 239, 255, 0.26);
  --cyan: #2ff3ff;
  --magenta: #ff4fd8;
  --violet: #8b5cff;
  --green: #3effbd;
  --gold: #ffd166;
  --cloud: #ff8bdc;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 79, 216, 0.2), transparent 25%),
    radial-gradient(circle at 82% 8%, rgba(47, 243, 255, 0.2), transparent 26%),
    linear-gradient(180deg, #06101e, #081522 52%, #050914);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(47, 243, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 243, 255, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 82%);
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 5vw, 72px);
  background: rgba(3, 7, 18, 0.72);
  border-bottom: 1px solid rgba(47, 243, 255, 0.22);
  box-shadow: 0 0 34px rgba(47, 243, 255, 0.08);
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  clip-path: polygon(50% 0, 95% 25%, 95% 75%, 50% 100%, 5% 75%, 5% 25%);
  background:
    linear-gradient(135deg, var(--cyan), var(--magenta)),
    var(--cyan);
  color: #06101e;
  font-size: 14px;
  font-weight: 950;
  box-shadow: 0 0 24px rgba(47, 243, 255, 0.75);
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand strong {
  color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--cloud), var(--gold), var(--green), var(--cyan));
  background-size: 320% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 12px rgba(47, 243, 255, 0.28));
  animation: brandGradientFlow 5.5s linear infinite;
}

.brand small {
  margin-top: 4px;
  color: var(--cyan);
  font-size: 11px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #d7faff;
  font-size: 14px;
}

.nav a {
  opacity: 0.86;
}

.nav-action {
  padding: 10px 16px;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  color: var(--cyan);
  background: rgba(47, 243, 255, 0.08);
  box-shadow: inset 0 0 18px rgba(47, 243, 255, 0.12), 0 0 18px rgba(47, 243, 255, 0.12);
}

.hero {
  position: relative;
  min-height: 96vh;
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 124px clamp(18px, 5vw, 72px) 34px;
}

.hero-media,
.hero-overlay,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  filter: saturate(1.18) contrast(1.08);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(3, 7, 18, 0.9), rgba(3, 7, 18, 0.42) 52%, rgba(3, 7, 18, 0.12)),
    linear-gradient(0deg, rgba(7, 17, 31, 1), rgba(7, 17, 31, 0) 36%);
}

.hero-grid {
  opacity: 0.6;
  background:
    linear-gradient(115deg, transparent 0 28%, rgba(47, 243, 255, 0.26) 28.2%, transparent 29% 68%, rgba(255, 79, 216, 0.24) 68.2%, transparent 69%),
    repeating-linear-gradient(90deg, transparent 0 118px, rgba(47, 243, 255, 0.08) 119px 120px);
  mix-blend-mode: screen;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding-bottom: 92px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 860px;
  color: #f7fffb;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 1.02;
  letter-spacing: 0;
  text-shadow: 0 0 26px rgba(47, 243, 255, 0.18), 0 0 44px rgba(255, 79, 216, 0.12);
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(232, 252, 255, 0.88);
  font-size: 18px;
  line-height: 1.82;
}

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

.button,
.contact-form button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 4px;
  border: 1px solid transparent;
  font-weight: 900;
  cursor: pointer;
}

.button.primary,
.contact-form button {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: #02111b;
  box-shadow: 0 0 28px rgba(47, 243, 255, 0.38);
}

.button.secondary {
  border-color: rgba(255, 79, 216, 0.76);
  color: #ffe9fb;
  background: rgba(255, 79, 216, 0.12);
  box-shadow: inset 0 0 22px rgba(255, 79, 216, 0.16);
}

.signal-panel {
  position: absolute;
  right: clamp(18px, 5vw, 72px);
  bottom: 172px;
  z-index: 3;
  width: min(340px, 34vw);
  padding: 20px;
  border: 1px solid rgba(47, 243, 255, 0.42);
  background: linear-gradient(135deg, rgba(6, 16, 30, 0.82), rgba(255, 79, 216, 0.1));
  box-shadow: var(--shadow), inset 0 0 36px rgba(47, 243, 255, 0.1);
  backdrop-filter: blur(18px);
}

.signal-panel span,
.scene-list span,
.showcase-panel span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 900;
}

.signal-panel strong {
  display: block;
  margin-top: 10px;
  font-size: 24px;
}

.signal-panel p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 860px;
  border: 1px solid rgba(47, 243, 255, 0.34);
  background: rgba(3, 7, 18, 0.68);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow), 0 0 26px rgba(47, 243, 255, 0.14);
}

.hero-stats div {
  padding: 22px;
  border-right: 1px solid rgba(47, 243, 255, 0.2);
  background:
    linear-gradient(135deg, rgba(47, 243, 255, 0.1), transparent 45%),
    linear-gradient(315deg, rgba(255, 79, 216, 0.08), transparent 42%);
}

.hero-stats div:last-child {
  border-right: 0;
}

.hero-stats strong {
  display: block;
  color: #ffffff;
  font-size: 24px;
}

.hero-stats span {
  color: var(--muted);
  font-size: 14px;
}

.culture-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 1px clamp(18px, 5vw, 72px);
  background: linear-gradient(90deg, rgba(47, 243, 255, 0.42), rgba(255, 79, 216, 0.42), rgba(255, 209, 102, 0.38));
}

.culture-strip article {
  min-height: 240px;
  padding: 34px 28px;
  background:
    linear-gradient(135deg, rgba(47, 243, 255, 0.09), rgba(255, 79, 216, 0.07)),
    #081523;
}

.culture-strip span {
  color: var(--magenta);
  font-weight: 950;
}

.culture-strip h2 {
  margin: 42px 0 14px;
  font-size: clamp(24px, 3vw, 34px);
}

.culture-strip p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.section,
.section-band {
  padding: 92px clamp(18px, 5vw, 72px);
}

.section-head {
  max-width: 820px;
}

.section-head h2,
.contact h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

.section-head p:not(.eyebrow),
.contact p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.cyber-section {
  background:
    radial-gradient(circle at 72% 20%, rgba(47, 243, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(7, 17, 31, 0.95), rgba(5, 9, 20, 0.96));
}

.feature-grid,
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.feature-card,
.showcase-panel,
.scene-list article,
.contact-form {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.26), inset 0 0 34px rgba(47, 243, 255, 0.06);
  backdrop-filter: blur(16px);
}

.feature-card::before,
.showcase-panel::before,
.scene-list article::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), var(--gold));
}

.feature-card {
  min-height: 292px;
  padding: 28px;
}

.icon {
  display: inline-grid;
  width: 50px;
  height: 50px;
  place-items: center;
  margin-bottom: 36px;
  clip-path: polygon(50% 0, 100% 26%, 86% 100%, 14% 100%, 0 26%);
  background: linear-gradient(135deg, rgba(47, 243, 255, 0.95), rgba(255, 79, 216, 0.9));
  color: #05101e;
  font-weight: 950;
}

h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.feature-card p,
.showcase-panel p,
.scene-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.76;
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 6vw, 88px);
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 79, 216, 0.16), transparent 28%),
    radial-gradient(circle at 78% 64%, rgba(62, 255, 189, 0.1), transparent 26%),
    var(--deep);
}

.sticky-copy {
  position: sticky;
  top: 118px;
  align-self: start;
}

.scene-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.scene-list article,
.showcase-panel {
  min-height: 220px;
  padding: 26px;
}

.scene-list h3,
.showcase-panel h3 {
  margin-top: 18px;
}

.showcase {
  background:
    linear-gradient(135deg, rgba(47, 243, 255, 0.08), rgba(255, 79, 216, 0.08)),
    #07111f;
}

.showcase-panel:nth-child(2)::before {
  background: linear-gradient(90deg, var(--magenta), var(--violet));
}

.showcase-panel:nth-child(3)::before {
  background: linear-gradient(90deg, var(--gold), var(--green));
}

.section-band {
  background:
    linear-gradient(90deg, rgba(47, 243, 255, 0.12), rgba(255, 79, 216, 0.12)),
    #081523;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.62fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: #d9fbff;
  font-size: 14px;
  font-weight: 800;
}

.contact-form input,
.contact-form select {
  min-height: 48px;
  width: 100%;
  border: 1px solid rgba(47, 243, 255, 0.3);
  padding: 0 13px;
  color: var(--ink);
  background: rgba(2, 10, 20, 0.86);
  font: inherit;
}

.contact-form button {
  width: 100%;
  border: 0;
  margin-top: 6px;
}

.site-footer {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 5vw, 70px);
  padding: 36px clamp(18px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid rgba(47, 243, 255, 0.2);
  background:
    linear-gradient(90deg, rgba(47, 243, 255, 0.1), rgba(255, 79, 216, 0.08)),
    #030712;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--magenta), transparent);
  box-shadow: 0 0 28px rgba(47, 243, 255, 0.52);
}

.footer-brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.footer-brand img {
  width: 92px;
  height: 92px;
  object-fit: contain;
  padding: 6px;
  border: 2px solid rgba(47, 243, 255, 0.52);
  border-radius: 50%;
  background: #020b18;
  box-shadow: 0 0 26px rgba(47, 243, 255, 0.22), inset 0 0 18px rgba(47, 243, 255, 0.12);
}

.footer-brand div,
.footer-contact {
  display: grid;
  gap: 8px;
}

.footer-brand strong {
  color: var(--ink);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.1;
}

.footer-brand span {
  color: var(--muted);
  line-height: 1.7;
}

.footer-contact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  font-style: normal;
}

.contact-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 82px;
  padding: 16px;
  color: var(--ink);
  border: 1px solid rgba(47, 243, 255, 0.26);
  background: rgba(8, 22, 38, 0.72);
  box-shadow: inset 0 0 24px rgba(47, 243, 255, 0.06);
}

.contact-chip svg {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  color: var(--cyan);
  filter: drop-shadow(0 0 10px rgba(47, 243, 255, 0.36));
}

.contact-chip img.qq-icon {
  flex: 0 0 auto;
  width: 46px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(47, 243, 255, 0.28));
}

.contact-chip svg path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.contact-chip span {
  display: grid;
  gap: 4px;
  line-height: 1.25;
}

.contact-chip small {
  color: var(--gold);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.qq-numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.qq-numbers b {
  color: inherit;
  font: inherit;
}

.contact-chip:hover {
  border-color: rgba(47, 243, 255, 0.58);
  color: var(--cyan);
}

@keyframes brandGradientFlow {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 320% 50%;
  }
}

@media (max-width: 1050px) {
  .signal-panel {
    position: relative;
    right: auto;
    bottom: auto;
    z-index: 2;
    width: min(620px, 100%);
    margin-bottom: 18px;
  }
}

@media (max-width: 900px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .nav {
    display: none;
  }

  .brand {
    min-width: 0;
  }

  .hero {
    min-height: 920px;
  }

  .hero-content {
    padding-bottom: 38px;
  }

  .hero-stats,
  .culture-strip,
  .feature-grid,
  .split,
  .scene-list,
  .showcase-grid,
  .contact,
  .site-footer,
  .footer-contact {
    grid-template-columns: 1fr;
  }

  .hero-stats div {
    border-right: 0;
    border-bottom: 1px solid rgba(47, 243, 255, 0.2);
  }

  .hero-stats div:last-child {
    border-bottom: 0;
  }

  .sticky-copy {
    position: static;
  }
}

@media (max-width: 560px) {
  .brand small {
    display: none;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  h1 {
    font-size: 39px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .section,
  .section-band {
    padding-block: 68px;
  }

  .site-footer {
    display: grid;
    text-align: left;
  }

  .footer-brand {
    align-items: flex-start;
  }

  .footer-brand img {
    width: 72px;
    height: 72px;
  }

  .contact-chip {
    min-height: 74px;
  }
}