/* ==========================================================================
   DAZHONG DIAL — tokens.css
   Design system for 大众娱乐 / broadcast live radio.
   Concept: a physical FM tuner — cream paper chassis, brass needle,
   amber backlit scale, signal-red ON AIR lamp.
   ========================================================================== */

:root {
  /* ---- ink / paper ---- */
  --dz-ink: #14110c;
  --dz-ink-soft: #221c14;
  --dz-ink-line: #3a3024;
  --dz-paper: #f4eee2;
  --dz-paper-2: #eae1d1;
  --dz-paper-3: #ded1bb;
  --dz-line: #cbbb9f;
  --dz-muted: #6d6353;

  /* ---- signal colours ---- */
  --dz-brass: #a9762c;
  --dz-brass-lt: #c99a4e;
  --dz-amber: #e2a63f;
  --dz-signal: #c33b25;
  --dz-moss: #3f5a49;

  /* ---- metrics ---- */
  --dz-wrap: 1200px;
  --dz-rail: 58px;
  --dz-r: 2px;
  --dz-hair: 1px solid var(--dz-line);
  --dz-hair-ink: 1px solid var(--dz-ink-line);

  /* ---- type ---- */
  --dz-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --dz-mono: "DIN Alternate", "Bahnschrift", Consolas, "SF Mono", ui-monospace, monospace;
  --dz-serif: "Songti SC", "Noto Serif SC", STSong, SimSun, serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background-color: var(--dz-paper);
  background-image:
    radial-gradient(rgba(20, 17, 12, 0.038) 1px, transparent 1px);
  background-size: 5px 5px;
  color: var(--dz-ink);
  font-family: var(--dz-sans);
  font-size: 16px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.012em;
}

h1 { font-size: clamp(34px, 4.6vw, 62px); }
h2 { font-size: clamp(25px, 3vw, 40px); }
h3 { font-size: 20px; }
h4 { font-size: 15px; letter-spacing: 0.02em; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--dz-brass); }

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

ul, ol { margin: 0; padding: 0; list-style: none; }

strong { font-weight: 800; }
em { font-style: normal; }

::selection {
  background: var(--dz-amber);
  color: var(--dz-ink);
}

:focus-visible {
  outline: 2px solid var(--dz-brass);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------- helpers */
.dz-wrap {
  width: min(100% - 44px, var(--dz-wrap));
  margin-inline: auto;
}

.dz-mono {
  font-family: var(--dz-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.dz-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--dz-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--dz-muted);
}

.dz-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--dz-brass);
}

.dz-hl {
  position: relative;
  display: inline-block;
  z-index: 0;
}
.dz-hl::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: 0.08em;
  height: 0.34em;
  background: var(--dz-amber);
  opacity: 0.55;
  z-index: -1;
}

.dz-lead {
  font-size: 17px;
  color: #3d3529;
  max-width: 62ch;
}

.dz-muted { color: var(--dz-muted); }

.dz-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--dz-line);
}

.dz-skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 90;
  padding: 10px 18px;
  background: var(--dz-ink);
  color: var(--dz-paper);
  font-family: var(--dz-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  transition: top 0.18s ease;
}
.dz-skip:focus { top: 12px; color: var(--dz-paper); }

/* ------------------------------------------------------------- entrance */
[data-dz-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-dz-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-dz-reveal] { opacity: 1; transform: none; }
}