:root {
  --asphalt: #161614;
  --strip: #24221c;
  --olive: #7a8f4a;
  --olive-2: #c5d39a;
  --amber: #e8c15a;
  --mark: #f4f1e6;
  --mute: #9a9584;
  --line: rgba(232, 193, 90, 0.22);
  --sans: "Noto Sans SC", "IBM Plex Sans", "PingFang SC", sans-serif;
  --plex: "IBM Plex Sans", "Noto Sans SC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: 64px;
}

body {
  margin: 0;
  background: var(--asphalt);
  color: var(--mark);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}

img {
  max-width: 100%;
  display: block;
}

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

a[href^="https://apps.chatsoftware.cn"] {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

button {
  font-family: inherit;
  cursor: pointer;
}

code {
  font-family: ui-monospace, Menlo, monospace;
  color: var(--amber);
  font-size: 0.9em;
}

.asphalt {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  opacity: 0.08;
  background-image: url("images/texture.webp");
  background-size: 520px;
  mix-blend-mode: overlay;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 8px;
  top: 8px;
  z-index: 60;
  background: var(--amber);
  color: #111;
  padding: 8px;
}

.chart-bar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px;
  min-height: 56px;
  background: #111;
  border-bottom: 3px solid var(--amber);
  font-family: var(--plex);
}

.id {
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 14px;
}

.id em {
  font-style: normal;
  color: var(--amber);
  margin-left: 8px;
}

.burger {
  display: none;
  background: transparent;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 4px 10px;
  margin-left: auto;
}

#layers {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 13px;
}

#layers a {
  color: var(--mute);
}

#layers a:hover,
#layers a.on {
  color: var(--amber);
}

.live {
  display: inline-flex;
  padding: 6px 12px;
  background: var(--amber);
  color: #111 !important;
  text-decoration: none !important;
  font-weight: 600;
}

.runway {
  position: relative;
  min-height: 86vh;
  display: grid;
  align-items: end;
}

.runway > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.runway::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(22, 22, 20, 0.88) 0%, rgba(22, 22, 20, 0.35) 55%, rgba(22, 22, 20, 0.2) 100%);
}

.film {
  position: relative;
  z-index: 1;
  padding: 8vh 6vw 10vh;
  max-width: 760px;
}

.tag {
  font-family: var(--plex);
  letter-spacing: 0.2em;
  font-size: 11px;
  color: var(--amber);
  text-transform: uppercase;
}

h1 {
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.12;
  font-weight: 700;
  margin: 8px 0 16px;
}

h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin: 6px 0 16px;
}

h3 {
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--olive-2);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ghost {
  border: 1px solid var(--mark);
  padding: 6px 12px;
}

.panel {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0;
}

.alt {
  width: 100%;
  padding: 64px 0;
  background: var(--strip);
}

.alt .tag,
.alt h2,
.alt .hint,
.alt .layer,
.alt .films,
.alt .grid5 {
  width: min(1100px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

.hint {
  color: var(--mute);
  margin-top: 0;
}

.films {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.films article {
  background: rgba(36, 34, 28, 0.9);
  border: 1px solid var(--line);
  padding: 16px 16px 8px;
  border-left: 3px solid var(--olive);
}

.films ul,
#edge ol {
  margin: 0;
  padding-left: 1.1em;
}

.films li,
#edge li {
  margin: 0.35em 0;
  color: var(--mute);
}

.layer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  margin: 36px auto;
  padding: 18px;
  background: rgba(22, 22, 20, 0.55);
  border: 1px solid var(--line);
}

.layer.flip {
  direction: rtl;
}

.layer.flip > * {
  direction: ltr;
}

.layer span {
  font-family: var(--plex);
  color: var(--amber);
  letter-spacing: 0.14em;
  font-size: 12px;
}

.layer img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

figcaption {
  font-size: 13px;
  color: var(--mute);
  margin-top: 8px;
}

.layer p {
  color: var(--mute);
}

.sweep {
  margin-top: 14px;
  padding: 10px;
  border: 1px dashed var(--olive);
}

.sweep .bar {
  height: 8px;
  background: #2a2a24;
  margin: 8px 0;
}

.sweep i {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, var(--olive), var(--amber));
}

.sweep button {
  background: transparent;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 4px 10px;
}

.grid5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  list-style: none;
  padding: 0;
}

.grid5 li {
  border: 1px solid var(--line);
  padding: 12px;
  background: #1b1a16;
}

.grid5 p {
  margin: 0;
  color: var(--mute);
  font-size: 13px;
}

#edge ol {
  max-width: 40em;
}

#edge li {
  color: var(--mark);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 6vw;
  border-top: 3px solid var(--amber);
  font-size: 13px;
  color: var(--mute);
  background: #111;
}

@media (max-width: 860px) {
  .burger {
    display: block;
  }

  #layers {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 16px 18px;
    background: #111;
    border-bottom: 3px solid var(--amber);
  }

  #layers.open {
    display: flex;
  }

  .films,
  .layer,
  .layer.flip,
  .grid5,
  footer {
    grid-template-columns: 1fr;
    direction: ltr;
    display: grid;
  }

  footer {
    display: flex;
    flex-direction: column;
  }

  .layer img {
    height: 190px;
  }
}