:root {
  --bg: #070d14;
  --panel: #0d1722;
  --panel-2: #111e2b;
  --line: #26394b;
  --ink: #e5edf4;
  --muted: #8295a6;
  --blue: #79bde8;
  --amber: #e2ad58;
  --red: #d36e66;
  --green: #83c7a1;
  --paper: #e5dfd1;
  --paper-ink: #23303b;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 5%, #183149 0, transparent 34%),
    linear-gradient(145deg, #07111b 0%, #070d14 55%, #05090e 100%);
  font: 15px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }
a { color: var(--blue); }

.noise {
  position: fixed;
  inset: 0;
  opacity: .08;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E");
  z-index: 50;
}

.shell { width: min(1180px, 94vw); margin: 0 auto; }
.cover {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 52px 0;
}
.cover-card {
  width: min(1040px, 100%);
  min-height: 720px;
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 7vw, 92px);
  border: 1px solid #37536b;
  background:
    linear-gradient(90deg, transparent 49.9%, #31485c 50%, transparent 50.1%),
    repeating-linear-gradient(0deg, transparent 0 47px, #142638 48px),
    repeating-linear-gradient(90deg, transparent 0 71px, #142638 72px),
    linear-gradient(135deg, #0d1a26, #09111a 72%);
  box-shadow: 0 32px 120px #000a;
}
.cover-card::before {
  content: "";
  position: absolute;
  width: 430px;
  height: 430px;
  right: -140px;
  top: -150px;
  border: 1px solid #50738e;
  border-radius: 50%;
  box-shadow: 0 0 0 44px #16283a88, 0 0 0 88px #0e1e2d88;
}
.kicker { color: var(--blue); letter-spacing: .22em; text-transform: uppercase; }
.cover h1 {
  position: relative;
  margin: 42px 0 26px;
  font: 700 clamp(66px, 13vw, 150px)/.9 Georgia, "Songti SC", serif;
  letter-spacing: .08em;
}
.cover h1 span { color: var(--amber); }
.cover-copy { max-width: 680px; font-size: 20px; color: #c7d4df; }
.future-note {
  max-width: 700px;
  margin: 34px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--amber);
  background: #050b11d9;
  color: #e4d2b1;
  font-size: 18px;
}
.cover-meta { margin-top: 28px; color: var(--muted); font-size: 13px; }

.btn {
  border: 1px solid #5785a5;
  border-radius: 4px;
  padding: 10px 18px;
  background: #153047;
  color: #e8f4fb;
  cursor: pointer;
}
.btn:hover { background: #1d425e; }
.btn.secondary { background: transparent; border-color: #4c5e6d; color: #b7c6d2; }
.btn.danger { background: #3b1b1b; border-color: #854c49; }
.btn:disabled { opacity: .42; cursor: not-allowed; }

.topbar {
  min-height: 66px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand { color: var(--amber); font: 20px Georgia, "Songti SC", serif; letter-spacing: .14em; }
.sysinfo { color: var(--muted); font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }

.desktop { padding: 34px 0 82px; }
.desktop-head { display: flex; justify-content: space-between; gap: 20px; align-items: end; }
.desktop h2 { margin: 0; font: 38px Georgia, "Songti SC", serif; }
.phase-badge { border: 1px solid #52728a; color: var(--blue); padding: 5px 10px; font-size: 12px; }
.apps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
.app {
  min-height: 142px;
  padding: 18px;
  text-align: left;
  cursor: pointer;
  border: 1px solid #2c4154;
  background: linear-gradient(150deg, #122333, #0a131d);
  transition: .18s ease;
}
.app:hover { transform: translateY(-2px); border-color: #7db7db; }
.app .icon { display: block; margin-bottom: 9px; font-size: 28px; color: var(--amber); }
.app b { display: block; font-size: 16px; }
.app small { display: block; margin-top: 4px; color: var(--muted); line-height: 1.4; }
.app.new::after { content: "NEW"; float: right; margin-top: -88px; color: var(--red); font-size: 10px; }
.app.locked { opacity: .48; }

.view { display: none; padding: 26px 0 88px; }
.view.active { display: block; }
.viewbar { display: flex; align-items: center; gap: 14px; margin-bottom: 17px; color: var(--muted); }
.back { border: 0; padding: 0; background: none; color: var(--blue); cursor: pointer; }
.card {
  padding: 24px;
  margin: 14px 0;
  border: 1px solid var(--line);
  background: #0d1722e8;
}
.card h2, .card h3 { margin-top: 0; }
.subtle { color: var(--muted); }
.amber { color: var(--amber); }
.red { color: var(--red); }
.green { color: var(--green); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.paper {
  padding: 28px;
  color: var(--paper-ink);
  background: var(--paper);
  border: 1px solid #b5aa94;
  box-shadow: inset 0 0 70px #766d5f21;
  font-family: "Songti SC", SimSun, serif;
}
.paper h2, .paper h3 { color: #182632; }
.paper .subtle { color: #6e6a62; }
.stamp { display: inline-block; padding: 2px 9px; border: 2px solid #ad4d45; color: #ad4d45; transform: rotate(-4deg); font-weight: 700; }

.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { border: 1px solid #3b5062; padding: 8px; vertical-align: top; text-align: left; }
.table th { background: #152638; color: #b9d6e9; }
.paper .table th, .paper .table td { border-color: #928a7c; }
.paper .table th { background: #c9c0ae; color: #25323c; }

.mail { margin: 12px 0; padding: 15px 17px; border-left: 3px solid #547f9f; background: #0a131d; }
.mail.future { border-left-color: var(--amber); }
.mail .head { color: var(--muted); font-size: 12px; }
.thread { border-bottom: 1px solid #26394b; padding: 14px 0; }
.thread:last-child { border-bottom: 0; }
.thread .user { color: #9dcced; }
.deleted { color: #6f7d89; filter: blur(1.6px); user-select: none; }

.searchbar { display: flex; gap: 8px; margin: 15px 0; }
.searchbar input { flex: 1; }
.field, input, textarea, select {
  width: 100%;
  border: 1px solid #3d5569;
  border-radius: 3px;
  padding: 10px;
  background: #060d14;
  color: var(--ink);
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.fieldbox label { display: block; margin-bottom: 5px; color: var(--muted); font-size: 12px; }
.gate { padding: 20px; border: 1px dashed #516d83; background: #080f16; }
.error { min-height: 26px; color: var(--red); }
.success { color: var(--green); }

.terminal {
  padding: 22px;
  border: 1px solid #30485a;
  background: #03080c;
  color: #b0d6c0;
  font: 13px/1.75 ui-monospace, SFMono-Regular, Menlo, monospace;
  overflow-x: auto;
}
.terminal .dim { color: #587165; }
.terminal .bad { color: #d98278; }

.packet-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.packet { padding: 15px; border: 1px solid #3a5164; background: #0a121a; min-height: 115px; }
.packet b { color: var(--amber); }

.evidence-button {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 42;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid #6794b2;
  background: #173149;
  cursor: pointer;
}
.evidence-panel {
  display: none;
  position: fixed;
  right: 18px;
  bottom: 78px;
  z-index: 42;
  width: min(380px, calc(100vw - 36px));
  max-height: 62vh;
  overflow: auto;
  padding: 17px;
  border: 1px solid #4e718a;
  background: #0b151f;
  box-shadow: 0 16px 70px #000b;
}
.evidence-panel h3 { margin-top: 0; }
.evidence-panel li { margin: 6px 0; color: #c3d2de; font-size: 13px; }

.mobile-frame {
  max-width: 430px;
  margin: 24px auto;
  border: 8px solid #1b252e;
  border-radius: 32px;
  background: #050a0e;
  overflow: hidden;
  box-shadow: 0 28px 80px #000a;
}
.mobile-top { padding: 9px 16px; text-align: center; color: #8295a6; font-size: 11px; }
.mobile-content { padding: 22px; min-height: 650px; }
.hold-card {
  min-height: 120px;
  display: grid;
  place-items: center;
  padding: 18px;
  border: 1px solid #375064;
  background: #0c1721;
  text-align: center;
  user-select: none;
  touch-action: none;
}
.hold-card.reversed { transform: rotate(180deg); }

.ending { max-width: 820px; margin: 0 auto; }
.ending h1 { font: 64px/1 Georgia, "Songti SC", serif; color: var(--amber); }
.loop-line { margin: 30px 0; padding: 24px; border-left: 4px solid var(--amber); background: #071019; font-size: 18px; }

@media (max-width: 820px) {
  .apps { grid-template-columns: repeat(2, 1fr); }
  .form-grid, .packet-grid { grid-template-columns: 1fr; }
  .cover h1 { font-size: 66px; }
  .cover-copy { font-size: 17px; }
  .desktop-head { align-items: start; flex-direction: column; }
  .card { padding: 17px; }
  .table { font-size: 11px; }
}