:root {
  color-scheme: dark;
  --bg: #07080a;
  --surface: #0d1117;
  --surface-2: #121821;
  --surface-3: #171d27;
  --line: rgba(226, 232, 240, .16);
  --line-strong: rgba(226, 232, 240, .28);
  --text: #f4f7fb;
  --muted: rgba(244, 247, 251, .68);
  --faint: rgba(244, 247, 251, .48);
  --cyan: #51e6d0;
  --red: #ff5969;
  --amber: #ffc857;
  --green: #8be28b;
  --shadow: 0 20px 60px rgba(0, 0, 0, .34);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .55;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 72%);
}

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

button, input, textarea { font: inherit; }

.nav {
  position: fixed;
  top: 16px;
  left: 50%;
  z-index: 50;
  width: min(1160px, calc(100% - 28px));
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 8, 10, .78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.brand,
.nav-links,
.hero-actions,
.signals {
  display: flex;
  align-items: center;
}

.brand {
  min-width: 0;
  gap: 10px;
  padding: 0 10px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--red));
  color: #061012;
  font-weight: 900;
}

.nav-links {
  gap: 4px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  padding: 0 12px;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, .08);
  color: var(--text);
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 110px max(24px, calc((100vw - 1160px) / 2)) 72px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(7, 8, 10, .94) 0%, rgba(7, 8, 10, .72) 47%, rgba(7, 8, 10, .44) 100%),
    linear-gradient(to bottom, rgba(7, 8, 10, .20), var(--bg) 96%),
    url("/assets/hero-cyber.png") center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.hero-copy {
  width: min(760px, 100%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.signal-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(139, 226, 139, .12);
}

h1,
h2,
h3,
p,
dl {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: 88px;
  line-height: .98;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 690px;
  margin-bottom: 0;
  color: rgba(244, 247, 251, .78);
  font-size: 20px;
  line-height: 1.85;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.btn {
  min-width: 126px;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0 18px;
  color: var(--text);
  background: rgba(255, 255, 255, .08);
  font-weight: 800;
  cursor: pointer;
}

.btn:hover { border-color: rgba(81, 230, 208, .58); }

.btn:disabled {
  cursor: wait;
  opacity: .62;
}

.btn.primary {
  border-color: transparent;
  color: #061012;
  background: linear-gradient(135deg, var(--cyan), #f1ffff);
}

.btn.secondary {
  background: rgba(7, 8, 10, .38);
}

.signals {
  width: min(620px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 40px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.signals div {
  min-height: 86px;
  padding: 16px;
  background: rgba(13, 17, 23, .78);
}

.signals dt {
  color: var(--text);
  font-size: 28px;
  font-weight: 900;
}

.signals dd {
  margin: 6px 0 0;
  color: var(--faint);
  font-size: 13px;
}

.section-band {
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.intro-band {
  background: linear-gradient(180deg, #080a0e 0%, #0a0d12 100%);
}

.muted-band {
  background: var(--surface);
}

.submit-band {
  background:
    linear-gradient(135deg, rgba(81, 230, 208, .08), transparent 38%),
    var(--surface-2);
}

.section-inner {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 74px 0;
}

.section-head {
  max-width: 620px;
  margin-bottom: 26px;
}

.section-head h2,
.submit-layout h2 {
  margin-bottom: 12px;
  font-size: 40px;
  line-height: 1.16;
  letter-spacing: 0;
}

.section-head p,
.submit-layout p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.8;
}

.kicker {
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.split {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(0, 1.3fr);
  gap: 42px;
  align-items: start;
}

.split.reverse {
  grid-template-columns: minmax(0, 1.3fr) minmax(240px, .7fr);
}

.split.reverse .section-head {
  order: 2;
}

.direction-grid,
.people {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.direction-card,
.person-card,
.ad-card,
.event,
.submission-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .045);
  box-shadow: 0 14px 38px rgba(0, 0, 0, .18);
}

.direction-card {
  min-height: 212px;
  padding: 20px;
}

.card-index {
  display: inline-flex;
  min-width: 42px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  border: 1px solid rgba(81, 230, 208, .35);
  border-radius: 8px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
}

.direction-card h3,
.person-card h3,
.event h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: 0;
}

.direction-card p,
.person-card p,
.event p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.ads-list {
  display: grid;
  gap: 12px;
}

.ad-card {
  min-height: 136px;
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 18px;
  align-items: center;
  padding: 20px;
}

.ad-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
  line-height: 1.25;
}

.ad-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.ad-slot {
  min-height: 96px;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(255, 200, 87, .52);
  border-radius: 8px;
  color: var(--amber);
  text-align: center;
  background: rgba(255, 200, 87, .08);
  overflow-wrap: anywhere;
}

.person-card {
  min-height: 292px;
  padding: 18px;
}

.avatar {
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: #061012;
  background: linear-gradient(135deg, var(--cyan), var(--red));
  font-size: 28px;
  font-weight: 900;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-card small {
  display: block;
  min-height: 20px;
  margin-bottom: 12px;
  color: var(--cyan);
}

.phone {
  display: block;
  margin-top: 14px;
  color: var(--faint);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.timeline {
  display: grid;
  gap: 12px;
}

.event {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 18px;
}

.event time {
  color: var(--amber);
  font-weight: 900;
}

.submit-layout {
  display: grid;
  grid-template-columns: minmax(260px, .78fr) minmax(0, 1.22fr);
  gap: 42px;
  align-items: start;
}

.rule-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.rule-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.contact-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.contact-list a {
  min-height: 44px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  background: rgba(0, 0, 0, .18);
  overflow-wrap: anywhere;
}

.contact-list a:hover {
  color: var(--text);
  border-color: rgba(81, 230, 208, .52);
}

.submission-form {
  display: grid;
  gap: 14px;
  padding: 20px;
  background: rgba(7, 8, 10, .58);
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .055);
  color: var(--text);
  padding: 12px 13px;
  outline: none;
}

textarea {
  min-height: 144px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: rgba(81, 230, 208, .72);
  box-shadow: 0 0 0 3px rgba(81, 230, 208, .12);
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--cyan);
}

.form-status[data-state="error"] { color: #ff9ca7; }
.form-status[data-state="success"] { color: var(--green); }

.empty {
  min-height: 86px;
  display: grid;
  place-items: center;
  margin: 0;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  color: var(--faint);
  text-align: center;
  padding: 20px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 24px 16px 28px;
  color: var(--faint);
  text-align: center;
  font-size: 13px;
}

@media (max-width: 980px) {
  .nav-links { display: none; }

  .hero {
    min-height: 86vh;
    padding-top: 104px;
  }

  h1 { font-size: 60px; }

  .hero-subtitle { font-size: 18px; }

  .split,
  .split.reverse,
  .submit-layout {
    grid-template-columns: 1fr;
  }

  .split.reverse .section-head { order: 0; }

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

@media (max-width: 620px) {
  .nav {
    top: 10px;
    width: calc(100% - 20px);
  }

  .brand {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero {
    min-height: 84vh;
    padding: 94px 18px 46px;
  }

  h1 { font-size: 46px; }

  .hero-subtitle {
    font-size: 16px;
    line-height: 1.75;
  }

  .signals,
  .direction-grid,
  .people,
  .ad-card,
  .event {
    grid-template-columns: 1fr;
  }

  .signals div {
    min-height: 70px;
  }

  .section-inner {
    width: calc(100% - 28px);
    padding: 56px 0;
  }

  .section-head h2,
  .submit-layout h2 {
    font-size: 30px;
  }

  .ad-slot {
    min-height: 74px;
  }
}