/* Source migration: selectors are scoped to this page root. */
/* ============================================================
   Yuqi — 分布式 LED 无线拼接与多源显示系统
   Design system: 工业精密 / 光学科技
   ============================================================ */

/* ---------- 1. Tokens ---------- */
.distributed-led-dapin {
  /* Surfaces — 深蓝黑，非纯黑 */
  --bg: oklch(11.5% 0.018 264);
  --bg-2: oklch(14% 0.02 264);
  --surface-1: oklch(17.5% 0.021 262);
  --surface-2: oklch(21.5% 0.024 262);
  --surface-3: oklch(26% 0.026 262);

  /* Lines */
  --line: oklch(32% 0.026 262);
  --line-soft: color-mix(in oklab, var(--line) 55%, transparent);
  --line-hair: color-mix(in oklab, var(--line) 30%, transparent);

  /* Text */
  --hi: oklch(96% 0.008 260);
  --fg: oklch(80% 0.018 262);
  --fg-dim: oklch(66% 0.02 264);
  --fg-faint: oklch(54% 0.02 264);

  /* Accent — 琥珀，工业信号色 */
  --amber: oklch(80% 0.16 76);
  --amber-hi: oklch(88% 0.12 82);
  --amber-deep: oklch(62% 0.15 66);
  --amber-ink: oklch(20% 0.05 70);

  /* LED 三原色 — 仅作数据色 */
  --led-r: oklch(62% 0.24 22);
  --led-g: oklch(78% 0.19 152);
  --led-b: oklch(66% 0.19 250);

  /* Semantic */
  --ok: oklch(76% 0.15 155);
  --warn: oklch(78% 0.15 70);
  --bad: oklch(64% 0.2 25);

  /* Type */
  --font-display: "Sora", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", ui-monospace, "PingFang SC", monospace;

  /* Fluid scale */
  --t-hero: clamp(2.6rem, 6.4vw, 5.4rem);
  --t-h2: clamp(1.9rem, 3.6vw, 3.1rem);
  --t-h3: clamp(1.15rem, 1.6vw, 1.45rem);
  --t-lead: clamp(1.02rem, 1.25vw, 1.22rem);
  --t-body: 1rem;
  --t-sm: 0.875rem;
  --t-xs: 0.78rem;

  /* Space — 4px base */
  --s1: 0.25rem; --s2: 0.5rem; --s3: 0.75rem; --s4: 1rem;
  --s5: 1.5rem; --s6: 2rem; --s7: 3rem; --s8: 4rem;
  --s9: 6rem; --s10: 8rem;

  --radius: 3px;
  --radius-lg: 6px;
  --shell: 1440px;
  --gutter: clamp(1rem, 2.4vw, 2rem);

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 140ms;
  --dur: 260ms;
  --dur-slow: 520ms;

  --grid-line: color-mix(in oklab, var(--line) 42%, transparent);
}

/* ---------- 2. Reset ---------- */
.distributed-led-dapin,
.distributed-led-dapin *,
.distributed-led-dapin *::before,
.distributed-led-dapin *::after { box-sizing: border-box; }
.distributed-led-dapin,
.distributed-led-dapin * { margin: 0; }
.distributed-led-dapin {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
.distributed-led-dapin {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.75;
  font-weight: 350;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
.distributed-led-dapin img,
.distributed-led-dapin svg,
.distributed-led-dapin canvas,
.distributed-led-dapin video { display: block; max-width: 100%; }
.distributed-led-dapin button,
.distributed-led-dapin input,
.distributed-led-dapin select { font: inherit; color: inherit; }
.distributed-led-dapin a { color: inherit; text-decoration: none; }
.distributed-led-dapin ul,
.distributed-led-dapin ol { list-style: none; padding: 0; }
.distributed-led-dapin h1,
.distributed-led-dapin h2,
.distributed-led-dapin h3,
.distributed-led-dapin h4 {
  font-family: var(--font-display);
  color: var(--hi);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.distributed-led-dapin ::selection { background: var(--amber); color: var(--amber-ink); }
.distributed-led-dapin :focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 3. Layout primitives ---------- */
.distributed-led-dapin .shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.distributed-led-dapin .section {
  position: relative;
  padding-block: clamp(2.5rem, 4.5vw, 4.5rem);
}
.distributed-led-dapin .section + .section { border-top: 1px solid var(--line-hair); }
.distributed-led-dapin .bg-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 20%, #000 10%, transparent 78%);
  opacity: 0.5;
}
.distributed-led-dapin .glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}
.distributed-led-dapin .glow--amber { background: color-mix(in oklab, var(--amber) 16%, transparent); }
.distributed-led-dapin .glow--blue { background: color-mix(in oklab, var(--led-b) 18%, transparent); }

/* Eyebrow / section label */
.distributed-led-dapin .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s3);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: var(--s3);
}
.distributed-led-dapin .eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--amber);
  opacity: 0.7;
}
.distributed-led-dapin .section-head { max-width: 90ch; margin-bottom: var(--s5); position: relative; z-index: 1; }
.distributed-led-dapin .section-head h2 { font-size: var(--t-h2); margin-bottom: var(--s2); }
.distributed-led-dapin .section-head p { color: var(--fg); font-size: var(--t-lead); line-height: 1.65; }
.distributed-led-dapin .lead { font-size: var(--t-lead); color: var(--fg); }
.distributed-led-dapin .dim { color: var(--fg-dim); }
.distributed-led-dapin .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.distributed-led-dapin .num { font-family: var(--font-display); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }

/* Industrial corner ticks */
.distributed-led-dapin .ticks { position: relative; }
.distributed-led-dapin .ticks::before,
.distributed-led-dapin .ticks::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border: 1px solid var(--amber);
  opacity: 0.55;
  pointer-events: none;
}
.distributed-led-dapin .ticks::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.distributed-led-dapin .ticks::after { bottom: 0; right: 0; border-left: 0; border-top: 0; }

/* ---------- 4. Buttons ---------- */
.distributed-led-dapin .btn {
  --btn-bg: transparent;
  --btn-fg: var(--hi);
  --btn-bd: var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  padding: 0.85em 1.5em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background var(--dur) var(--ease-out-quart),
              border-color var(--dur) var(--ease-out-quart),
              color var(--dur) var(--ease-out-quart),
              transform var(--dur-fast) var(--ease-out-quart);
}
.distributed-led-dapin .btn:hover { transform: translateY(-1px); }
.distributed-led-dapin .btn:active { transform: translateY(0); }
.distributed-led-dapin .btn--primary {
  --btn-bg: var(--amber);
  --btn-fg: var(--amber-ink);
  --btn-bd: var(--amber);
  font-weight: 600;
}
.distributed-led-dapin .btn--primary:hover { --btn-bg: var(--amber-hi); --btn-bd: var(--amber-hi); }
.distributed-led-dapin .btn--ghost:hover { --btn-bd: var(--amber); --btn-fg: var(--amber-hi); }
.distributed-led-dapin .btn__arrow { transition: transform var(--dur) var(--ease-out-expo); }
.distributed-led-dapin .btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- 5. Nav ---------- */
.distributed-led-dapin .nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) linear, background var(--dur) linear;
}
.distributed-led-dapin .nav.is-stuck { border-bottom-color: var(--line-hair); background: color-mix(in oklab, var(--bg) 92%, transparent); }
.distributed-led-dapin .nav__in {
  display: flex;
  align-items: center;
  gap: var(--s6);
  height: 68px;
}
.distributed-led-dapin .brand { display: flex; align-items: center; gap: var(--s3); flex-shrink: 0; }
.distributed-led-dapin .brand__mark { width: 30px; height: 30px; flex-shrink: 0; }
.distributed-led-dapin .brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--hi);
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.distributed-led-dapin .brand__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  color: var(--fg-faint);
  text-transform: uppercase;
  line-height: 1.4;
}
.distributed-led-dapin .nav__links { display: flex; gap: var(--s5); margin-left: auto; }
.distributed-led-dapin .nav__links a {
  font-size: var(--t-sm);
  color: var(--fg-dim);
  position: relative;
  padding-block: 4px;
  transition: color var(--dur) var(--ease-out-quart);
  white-space: nowrap;
}
.distributed-led-dapin .nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out-expo);
}
.distributed-led-dapin .nav__links a:hover { color: var(--hi); }
.distributed-led-dapin .nav__links a:hover::after { transform: scaleX(1); }
.distributed-led-dapin .nav__cta { display: flex; align-items: center; gap: var(--s3); }
.distributed-led-dapin .nav__cta .btn { padding: 0.6em 1.1em; font-size: 0.86rem; }
.distributed-led-dapin .nav__phone { font-family: var(--font-mono); font-size: 0.86rem; color: var(--hi); letter-spacing: 0.02em; }
.distributed-led-dapin .nav__burger { display: none; }

/* ---------- 6. Hero (fullscreen · image bg · tight stack) ---------- */
.distributed-led-dapin .hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}
.distributed-led-dapin .hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 62% center;
  pointer-events: none;
}
.distributed-led-dapin .hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(102deg, rgba(7,9,16,0.95) 0%, rgba(7,9,16,0.82) 32%, rgba(7,9,16,0.55) 56%, rgba(7,9,16,0.22) 100%),
    linear-gradient(180deg, rgba(7,9,16,0.45) 0%, transparent 28%, rgba(7,9,16,0.55) 100%);
}
.distributed-led-dapin .hero__in {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 720px;
}
.distributed-led-dapin .hero__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  padding: 0.42em 0.9em;
  border: 1px solid color-mix(in oklab, var(--hi) 18%, transparent);
  border-radius: 100px;
  background: color-mix(in oklab, var(--surface-1) 65%, transparent);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--hi);
  text-transform: uppercase;
  margin-bottom: var(--s4);
}
.distributed-led-dapin .dot-live {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--led-g);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--led-g) 60%, transparent);
  animation: dapin-pulse 2.4s var(--ease-out-quart) infinite;
}
@keyframes dapin-pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--led-g) 55%, transparent); }
  70%, 100% { box-shadow: 0 0 0 7px transparent; }
}
.distributed-led-dapin .hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
  max-width: 17ch;
  margin-bottom: var(--s4);
  color: var(--hi);
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
}
.distributed-led-dapin .hero h1 .grad {
  background: linear-gradient(100deg, var(--amber) 0%, var(--amber-hi) 45%, var(--hi) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.distributed-led-dapin .hero h1 .thin {
  font-weight: 300;
  color: color-mix(in oklab, var(--hi) 70%, transparent);
}
.distributed-led-dapin .hero__lead {
  font-size: clamp(0.98rem, 1.05vw, 1.06rem);
  max-width: 54ch;
  color: color-mix(in oklab, var(--hi) 80%, transparent);
  line-height: 1.75;
  margin-bottom: var(--s5);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}
.distributed-led-dapin .hero__actions { display: flex; flex-wrap: wrap; gap: var(--s3); margin-bottom: var(--s5); }
.distributed-led-dapin .hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: color-mix(in oklab, var(--hi) 55%, transparent);
  text-transform: uppercase;
  pointer-events: none;
}
.distributed-led-dapin .hero__scroll::after {
  content: "";
  width: 1px; height: 36px;
  background: linear-gradient(to bottom, var(--amber), transparent);
  animation: dapin-scrollline 2.4s var(--ease-out-quart) infinite;
  transform-origin: top;
}
@keyframes dapin-scrollline {
  0%   { transform: scaleY(0); }
  55%  { transform: scaleY(1); }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Live wall preview */
.distributed-led-dapin .wall {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  overflow: hidden;
  box-shadow: 0 40px 120px -40px color-mix(in oklab, var(--led-b) 30%, transparent);
}
.distributed-led-dapin .wall__bar {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--line-hair);
  background: color-mix(in oklab, var(--surface-2) 70%, transparent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  text-transform: uppercase;
}
.distributed-led-dapin .wall__bar .leds { display: flex; gap: 5px; margin-left: auto; }
.distributed-led-dapin .wall__bar .leds i {
  width: 6px; height: 6px; border-radius: 1px;
  background: var(--line);
}
.distributed-led-dapin .wall__bar .leds i:nth-child(1) { background: var(--led-r); animation: dapin-blink 1.7s steps(1) infinite; }
.distributed-led-dapin .wall__bar .leds i:nth-child(2) { background: var(--led-g); animation: dapin-blink 1.7s steps(1) 0.4s infinite; }
.distributed-led-dapin .wall__bar .leds i:nth-child(3) { background: var(--led-b); animation: dapin-blink 1.7s steps(1) 0.9s infinite; }
@keyframes dapin-blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0.25; } }
.distributed-led-dapin .wall__stage {
  position: relative;
  aspect-ratio: 21 / 9;
  background-color: #05070c;
  background-image: radial-gradient(rgba(255, 255, 255, 0.055) 0.5px, transparent 0.5px);
  background-size: 6px 6px;
  overflow: hidden;
}
.distributed-led-dapin .wall__seams {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, transparent 0 calc(12.5% - 1px), rgba(255, 255, 255, 0.055) calc(12.5% - 1px) 12.5%),
    repeating-linear-gradient(180deg, transparent 0 calc(33.333% - 1px), rgba(255, 255, 255, 0.055) calc(33.333% - 1px) 33.333%);
}
.distributed-led-dapin .win {
  position: absolute;
  border-radius: 2px;
  overflow: hidden;
  background: var(--wc, #14304f);
  box-shadow: inset 0 0 0 1px rgba(232, 237, 246, 0.16), 0 0 26px -8px var(--wg, #4FA8FF);
  transition:
    left 900ms var(--ease-out-expo),
    top 900ms var(--ease-out-expo),
    width 900ms var(--ease-out-expo),
    height 900ms var(--ease-out-expo),
    background-color 900ms var(--ease-out-quart),
    opacity 420ms var(--ease-out-quart);
}
.distributed-led-dapin .win[hidden] { display: none; }
.distributed-led-dapin .win__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
}
.distributed-led-dapin .win__scan {
  position: absolute;
  left: 0; right: 0;
  top: 0;
  height: 26%;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  animation: dapin-scan 3.6s linear infinite;
}
@keyframes dapin-scan { from { transform: translateY(-110%); } to { transform: translateY(420%); } }
.distributed-led-dapin .win__lbl {
  position: absolute;
  left: 6px; top: 6px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(4, 7, 12, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 2px 6px;
  border-radius: 2px;
  white-space: nowrap;
  overflow: hidden;
  max-width: calc(100% - 12px);
  text-overflow: ellipsis;
}
.distributed-led-dapin .win__lbl i {
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--wg, #4FA8FF);
  margin-right: 5px;
  vertical-align: middle;
}
.distributed-led-dapin .win__bars { position: absolute; left: 6px; bottom: 6px; right: 6px; display: flex; gap: 4px; }
.distributed-led-dapin .win__bars span { height: 3px; flex: 1; background: rgba(255, 255, 255, 0.22); border-radius: 2px; }
.distributed-led-dapin .win__bars span:nth-child(2) { background: rgba(255, 255, 255, 0.34); }
.distributed-led-dapin .win__bars span:nth-child(3) { background: rgba(255, 255, 255, 0.16); }
.distributed-led-dapin .wall__hud {
  position: absolute;
  inset: auto var(--s4) var(--s4) var(--s4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  pointer-events: none;
  z-index: 3;
}
.distributed-led-dapin .chip {
  padding: 0.3em 0.7em;
  border: 1px solid color-mix(in oklab, var(--hi) 22%, transparent);
  border-radius: 100px;
  background: rgba(5, 8, 14, 0.62);
  backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--hi);
  white-space: nowrap;
}

/* Stats band — own section below hero */
.distributed-led-dapin .stats > .shell { display: contents; }
.distributed-led-dapin .stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-hair);
  border-bottom: 1px solid var(--line-hair);
  background: color-mix(in oklab, var(--bg-2) 60%, var(--bg));
  position: relative;
}
.distributed-led-dapin .stat { padding: var(--s5) var(--s4) var(--s5) 0; border-right: 1px solid var(--line-hair); }
.distributed-led-dapin .stat:last-child { border-right: 0; }
.distributed-led-dapin .stat:not(:first-child) { padding-left: var(--s5); }
.distributed-led-dapin .stat__v {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--hi);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.distributed-led-dapin .stat__v small { font-size: 0.42em; font-weight: 400; color: var(--amber); margin-left: 0.25em; letter-spacing: 0; }
.distributed-led-dapin .stat__k { font-size: var(--t-sm); color: var(--fg-dim); margin-top: var(--s2); }

/* Live preview section — wall demo as its own block */
.distributed-led-dapin .preview {
  padding-block: clamp(3rem, 6vw, 5rem);
}
.distributed-led-dapin .preview__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s5);
  margin-bottom: var(--s5);
}
.distributed-led-dapin .preview__head h2 { font-size: var(--t-h3); }
.distributed-led-dapin .preview__head p { color: var(--fg-dim); font-size: 0.92rem; max-width: 44ch; margin-top: var(--s2); }

/* ---------- 7. Ticker ---------- */
.distributed-led-dapin .ticker {
  border-block: 1px solid var(--line-hair);
  overflow: hidden;
  padding-block: var(--s4);
  background: color-mix(in oklab, var(--bg-2) 60%, transparent);
}
.distributed-led-dapin .ticker__track { display: flex; width: max-content; animation: dapin-slide 38s linear infinite; }
.distributed-led-dapin .ticker:hover .ticker__track { animation-play-state: paused; }
.distributed-led-dapin .ticker__track span {
  display: inline-flex;
  align-items: center;
  gap: var(--s5);
  padding-inline: var(--s5);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  white-space: nowrap;
}
.distributed-led-dapin .ticker__track span::after { content: ""; width: 4px; height: 4px; background: var(--amber); opacity: 0.6; transform: rotate(45deg); }
@keyframes dapin-slide { to { transform: translateX(-50%); } }

/* ---------- 8. Compare (痛点) ---------- */
.distributed-led-dapin .compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.distributed-led-dapin .compare__col { padding: clamp(1.5rem, 3vw, 2.5rem); background: var(--bg); }
.distributed-led-dapin .compare__col--bad { background: color-mix(in oklab, var(--bad) 5%, var(--bg)); }
.distributed-led-dapin .compare__col--good { background: color-mix(in oklab, var(--amber) 5%, var(--bg)); }
.distributed-led-dapin .compare__tag {
  display: inline-flex; align-items: center; gap: var(--s2);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; margin-bottom: var(--s5);
}
.distributed-led-dapin .compare__col--bad .compare__tag { color: var(--bad); }
.distributed-led-dapin .compare__col--good .compare__tag { color: var(--amber); }
.distributed-led-dapin .compare__col h3 { font-size: var(--t-h3); margin-bottom: var(--s5); }
.distributed-led-dapin .compare__list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: var(--s3);
  padding-block: var(--s3);
  border-top: 1px solid var(--line-hair);
  font-size: 0.94rem;
  line-height: 1.7;
}
.distributed-led-dapin .compare__list li:first-child { border-top: 0; }
.distributed-led-dapin .compare__list .mk { font-family: var(--font-mono); font-size: 0.8rem; line-height: 1.7; }
.distributed-led-dapin .compare__col--bad .mk { color: var(--bad); }
.distributed-led-dapin .compare__col--good .mk { color: var(--ok); }

/* ---------- 9. Scenes ---------- */
.distributed-led-dapin .scenes {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  grid-auto-rows: minmax(280px, auto);
  gap: var(--s4);
}
.distributed-led-dapin .scene {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-1);
  isolation: isolate;
  min-height: 300px;
}
.distributed-led-dapin .scene--wide { grid-row: span 2; }
.distributed-led-dapin .scene__art { position: absolute; inset: 0; z-index: 0; }
.distributed-led-dapin .scene__art img { width: 100%; height: 100%; object-fit: cover; }
.distributed-led-dapin .scene__veil {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(4,6,11,0.94) 6%, rgba(4,6,11,0.55) 42%, rgba(4,6,11,0.08) 78%);
  transition: opacity var(--dur-slow) var(--ease-out-quart);
}
.distributed-led-dapin .scene:hover .scene__veil { opacity: 0.82; }
.distributed-led-dapin .scene__body { position: relative; z-index: 2; padding: var(--s5); height: 100%; display: flex; flex-direction: column; justify-content: flex-end; }
.distributed-led-dapin .scene__idx { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em; color: var(--amber); margin-bottom: var(--s2); }
.distributed-led-dapin .scene h3 { font-size: 1.35rem; margin-bottom: var(--s2); }
.distributed-led-dapin .scene p { font-size: 0.92rem; color: var(--fg); line-height: 1.7; max-width: 46ch; }
.distributed-led-dapin .scene__meta {
  display: flex; flex-wrap: wrap; gap: var(--s2);
  margin-top: var(--s4);
}
.distributed-led-dapin .scene__meta span {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  padding: 0.28em 0.6em;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--fg-dim);
  background: rgba(6, 9, 15, 0.5);
}
.distributed-led-dapin .scene__art { transition: transform 900ms var(--ease-out-expo); }
.distributed-led-dapin .scene:hover .scene__art { transform: scale(1.045); }

/* ---------- 10. Architecture (blueprint) ---------- */
.distributed-led-dapin .arch { background: var(--bg-2); }
.distributed-led-dapin .arch__panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid oklch(88% 0.005 260);
  background: oklch(97.5% 0.004 260);
  padding: clamp(1.25rem, 2.6vw, 2.25rem);
  overflow: hidden;
}
.distributed-led-dapin .arch__panel::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(30, 45, 70, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 45, 70, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.distributed-led-dapin .arch__titlebar {
  display: flex; align-items: center; gap: var(--s4);
  padding-bottom: var(--s4);
  margin-bottom: var(--s4);
  border-bottom: 1px solid rgba(30, 45, 70, 0.16);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: oklch(42% 0.02 260);
  position: relative; z-index: 1;
}
.distributed-led-dapin .arch__titlebar .rt { margin-left: auto; color: oklch(55% 0.02 260); }
.distributed-led-dapin .arch__scroll { position: relative; z-index: 1; }
.distributed-led-dapin .arch__svg { position: relative; z-index: 1; width: 100%; height: auto; }
.distributed-led-dapin .arch__svg .bp-m { font-family: "IBM Plex Mono", "PingFang SC", monospace; }
.distributed-led-dapin .arch__svg .bp-box { fill: #FFFFFF; stroke: #C3CBD8; stroke-width: 1; }
.distributed-led-dapin .arch__svg .bp-id { font-size: 9.5px; letter-spacing: .08em; fill: #7C879B; }
.distributed-led-dapin .arch__svg .bp-nm { font-size: 12.5px; fill: #16233A; }
.distributed-led-dapin .arch__svg .bp-h { font-size: 9.5px; letter-spacing: .16em; fill: #8A94A6; }
.distributed-led-dapin .arch__svg .bp-h2 { font-size: 11.5px; fill: #47566E; }
.distributed-led-dapin .arch__svg .bp-sp { font-size: 9.5px; fill: #7C879B; }
.distributed-led-dapin .arch__svg .bp-hud { font-size: 8.5px; letter-spacing: .08em; fill: #7C879B; }
.distributed-led-dapin .arch__svg .bp-wl { font-size: 9px; letter-spacing: .06em; }
.distributed-led-dapin .arch__svg .bp-ln { fill: none; stroke: #C3CBD8; stroke-width: 1.2; }
.distributed-led-dapin .arch__svg .bp-dot { stroke: #9AA6BA; stroke-width: 1; stroke-dasharray: 3 4; fill: none; }

/* 窄屏下蓝图横向滚动，避免文字缩到不可读 */
.distributed-led-dapin .arch__hint {
  display: none;
  position: relative; z-index: 1;
  margin-top: var(--s3);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: oklch(52% 0.02 260);
  text-align: center;
}
@media (max-width: 1000px) {
.distributed-led-dapin .arch__scroll {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
.distributed-led-dapin .arch__svg { min-width: 940px; }
.distributed-led-dapin .arch__hint { display: block; }
}
.distributed-led-dapin .flow-dash {
  stroke-dasharray: 5 7;
  animation: dapin-dash 1.1s linear infinite;
}
@keyframes dapin-dash { to { stroke-dashoffset: -12; } }
.distributed-led-dapin .pkt { animation: dapin-pktmove var(--d, 3s) linear infinite; offset-rotate: 0deg; }
@keyframes dapin-pktmove { to { offset-distance: 100%; } }
.distributed-led-dapin .arch__legend {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--s4);
  margin-top: var(--s4);
}
.distributed-led-dapin .legend {
  border-left: 2px solid var(--line);
  padding-left: var(--s4);
}
.distributed-led-dapin .legend b { display: block; font-family: var(--font-display); font-size: 0.98rem; color: var(--hi); margin-bottom: var(--s1); font-weight: 600; }
.distributed-led-dapin .legend span { font-size: 0.86rem; color: var(--fg-dim); line-height: 1.65; display: block; }
.distributed-led-dapin .legend--r { border-left-color: var(--led-r); }
.distributed-led-dapin .legend--g { border-left-color: var(--led-g); }
.distributed-led-dapin .legend--b { border-left-color: var(--led-b); }
.distributed-led-dapin .legend--a { border-left-color: var(--amber); }

/* ---------- 11. Capabilities ---------- */
.distributed-led-dapin .caps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.distributed-led-dapin .cap {
  background: var(--bg);
  padding: clamp(1.4rem, 2.4vw, 2rem);
  position: relative;
  transition: background var(--dur) var(--ease-out-quart);
}
.distributed-led-dapin .cap:hover { background: var(--surface-1); }
.distributed-led-dapin .cap__ico { width: 34px; height: 34px; margin-bottom: var(--s4); color: var(--amber); }
.distributed-led-dapin .cap h3 { font-size: 1.08rem; margin-bottom: var(--s2); }
.distributed-led-dapin .cap p { font-size: 0.9rem; color: var(--fg-dim); line-height: 1.75; }
.distributed-led-dapin .cap__spec {
  margin-top: var(--s4);
  padding-top: var(--s3);
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  text-transform: uppercase;
}

/* ---------- 12. Process timeline ---------- */
.distributed-led-dapin .process { position: relative; }
.distributed-led-dapin .steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--s4);
  position: relative;
}
.distributed-led-dapin .steps::before {
  content: "";
  position: absolute;
  top: 15px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, var(--amber), var(--line));
  opacity: 0.5;
}
.distributed-led-dapin .step { position: relative; }
.distributed-led-dapin .step__dot {
  width: 31px; height: 31px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-dim);
  margin-bottom: var(--s4);
  position: relative;
  z-index: 1;
  transition: border-color var(--dur) var(--ease-out-quart), color var(--dur) var(--ease-out-quart);
}
.distributed-led-dapin .step.is-lit .step__dot { border-color: var(--amber); color: var(--amber); box-shadow: 0 0 0 4px color-mix(in oklab, var(--amber) 12%, transparent); }
.distributed-led-dapin .step h3 { font-size: 1rem; margin-bottom: var(--s2); }
.distributed-led-dapin .step p { font-size: 0.86rem; color: var(--fg-dim); line-height: 1.7; }
.distributed-led-dapin .step__dur {
  display: inline-block;
  margin-top: var(--s3);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  border: 1px solid var(--line-hair);
  padding: 0.2em 0.55em;
  border-radius: 100px;
}

/* ---------- 13. Value / deliverables ---------- */
.distributed-led-dapin .value {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.distributed-led-dapin .gains { display: flex; flex-direction: column; }
.distributed-led-dapin .gain {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: var(--s4);
  padding-block: var(--s5);
  border-top: 1px solid var(--line-hair);
}
.distributed-led-dapin .gain:first-child { border-top: 0; padding-top: 0; }
.distributed-led-dapin .gain__n { font-family: var(--font-mono); font-size: 0.86rem; color: var(--amber); letter-spacing: 0.04em; padding-top: 2px; }
.distributed-led-dapin .gain h3 { font-size: 1.06rem; margin-bottom: var(--s2); }
.distributed-led-dapin .gain p { font-size: 0.92rem; color: var(--fg-dim); line-height: 1.75; }
.distributed-led-dapin .dlist {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  padding: clamp(1.25rem, 2.4vw, 2rem);
}
.distributed-led-dapin .dlist h3 {
  font-size: 1.1rem;
  margin-bottom: var(--s2);
  display: flex; align-items: baseline; gap: var(--s3);
}
.distributed-led-dapin .dlist h3 em { font-style: normal; font-family: var(--font-mono); font-size: 0.72rem; color: var(--amber); letter-spacing: 0.1em; }
.distributed-led-dapin .dlist > p { font-size: 0.88rem; color: var(--fg-dim); margin-bottom: var(--s5); }
.distributed-led-dapin .dlist ul { display: flex; flex-direction: column; }
.distributed-led-dapin .dlist li {
  display: flex; align-items: flex-start; gap: var(--s3);
  padding-block: var(--s3);
  border-top: 1px solid var(--line-hair);
  font-size: 0.9rem;
  line-height: 1.6;
}
.distributed-led-dapin .dlist li svg { flex-shrink: 0; width: 15px; height: 15px; margin-top: 4px; color: var(--ok); }
.distributed-led-dapin .dlist li b { color: var(--hi); font-weight: 500; }

/* ---------- 14. Factory ---------- */
.distributed-led-dapin .factory { background: var(--bg-2); }
.distributed-led-dapin .fgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.distributed-led-dapin .fvisual {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-1);
  aspect-ratio: 4 / 3;
}
.distributed-led-dapin .fvisual img { width: 100%; height: 100%; object-fit: cover; }
.distributed-led-dapin .facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-hair); border: 1px solid var(--line-hair); border-radius: var(--radius-lg); overflow: hidden; margin-block: var(--s6); }
.distributed-led-dapin .fact { background: var(--surface-1); padding: var(--s5) var(--s4); }
.distributed-led-dapin .fact__v { font-family: var(--font-display); font-size: 1.7rem; font-weight: 600; color: var(--hi); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.distributed-led-dapin .fact__v small { font-size: 0.45em; color: var(--amber); margin-left: 0.2em; font-weight: 400; }
.distributed-led-dapin .fact__k { font-size: 0.84rem; color: var(--fg-dim); margin-top: var(--s2); line-height: 1.5; }
.distributed-led-dapin .qa { display: flex; flex-wrap: wrap; gap: var(--s2); }
.distributed-led-dapin .qa span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.35em 0.75em;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--fg-dim);
}

/* ---------- 15. Experience / numbers ---------- */
.distributed-led-dapin .expgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4); }
.distributed-led-dapin .expcard {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--s5) var(--s4);
  background: linear-gradient(170deg, var(--surface-1), var(--bg));
  position: relative;
  overflow: hidden;
}
.distributed-led-dapin .expcard::after {
  content: "";
  position: absolute;
  top: 0; left: var(--s4); right: var(--s4);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--amber), transparent);
  opacity: 0.5;
}
.distributed-led-dapin .expcard__v { font-family: var(--font-display); font-size: clamp(2rem, 3.6vw, 2.7rem); font-weight: 600; color: var(--hi); letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.distributed-led-dapin .expcard__v small { font-size: 0.4em; color: var(--amber); margin-left: 0.2em; font-weight: 400; letter-spacing: 0; }
.distributed-led-dapin .expcard__k { font-size: 0.88rem; color: var(--fg-dim); margin-top: var(--s3); }

/* ---------- 16. FAQ ---------- */
.distributed-led-dapin .faq { max-width: 900px; }
.distributed-led-dapin .faq details {
  border-bottom: 1px solid var(--line-hair);
}
.distributed-led-dapin .faq summary {
  list-style: none;
  cursor: pointer;
  padding-block: var(--s5);
  display: flex;
  align-items: center;
  gap: var(--s4);
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--hi);
  transition: color var(--dur) var(--ease-out-quart);
}
.distributed-led-dapin .faq summary::-webkit-details-marker { display: none; }
.distributed-led-dapin .faq summary:hover { color: var(--amber); }
.distributed-led-dapin .faq summary::after {
  content: "";
  margin-left: auto;
  flex-shrink: 0;
  width: 11px; height: 11px;
  border-right: 1.5px solid var(--fg-dim);
  border-bottom: 1.5px solid var(--fg-dim);
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur) var(--ease-out-quart), border-color var(--dur) var(--ease-out-quart);
}
.distributed-led-dapin .faq details[open] summary::after { transform: rotate(225deg) translateY(-2px); border-color: var(--amber); }
.distributed-led-dapin .faq__a { padding-bottom: var(--s5); padding-right: var(--s8); font-size: 0.94rem; color: var(--fg-dim); line-height: 1.85; }

/* ---------- 17. CTA ---------- */
.distributed-led-dapin .cta {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-hair);
}
.distributed-led-dapin .cta__in {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(4rem, 8vw, 7rem);
}
.distributed-led-dapin .cta h2 { font-size: var(--t-h2); margin-bottom: var(--s4); }
.distributed-led-dapin .cta p { font-size: var(--t-lead); color: var(--fg); max-width: 46ch; }
.distributed-led-dapin .cta__box {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--surface-1) 88%, transparent);
  padding: var(--s6) var(--s5);
}
.distributed-led-dapin .cta__box .lbl { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-faint); margin-bottom: var(--s3); }
.distributed-led-dapin .cta__tel { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; color: var(--hi); letter-spacing: -0.03em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.distributed-led-dapin .cta__tel:hover { color: var(--amber); }
.distributed-led-dapin .cta__meta { margin-top: var(--s5); padding-top: var(--s4); border-top: 1px solid var(--line-hair); display: flex; flex-direction: column; gap: var(--s2); font-size: 0.86rem; color: var(--fg-dim); }

/* ---------- 18. Footer ---------- */
.distributed-led-dapin .footer { border-top: 1px solid var(--line-hair); background: var(--bg-2); padding-block: var(--s8) var(--s5); }
.distributed-led-dapin .footer__in { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: var(--s6); }
.distributed-led-dapin .footer h4 { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-faint); margin-bottom: var(--s4); font-weight: 400; }
.distributed-led-dapin .footer li { font-size: 0.88rem; color: var(--fg-dim); padding-block: var(--s1); line-height: 1.7; }
.distributed-led-dapin .footer li a:hover { color: var(--amber); }
.distributed-led-dapin .footer__note { font-size: 0.86rem; color: var(--fg-dim); max-width: 34ch; margin-top: var(--s4); line-height: 1.75; }
.distributed-led-dapin .footer__bar {
  margin-top: var(--s8);
  padding-top: var(--s5);
  border-top: 1px solid var(--line-hair);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s4);
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--fg-faint);
}

/* ---------- 19. Reveal ---------- */
.distributed-led-dapin [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 360ms var(--ease-out-expo), transform 360ms var(--ease-out-expo);
  transition-delay: calc(var(--i, 0) * 40ms);
}
.distributed-led-dapin [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 20. Responsive ---------- */
@media (max-width: 1080px) {
  .distributed-led-dapin .nav__links { display: none; }
  .distributed-led-dapin .scenes { grid-template-columns: 1fr; }
  .distributed-led-dapin .scene--wide { grid-row: auto; }
  .distributed-led-dapin .caps { grid-template-columns: repeat(2, 1fr); }
  .distributed-led-dapin .steps { grid-template-columns: repeat(3, 1fr); row-gap: var(--s7); }
  .distributed-led-dapin .steps::before { display: none; }
  .distributed-led-dapin .value { grid-template-columns: 1fr; }
  .distributed-led-dapin .fgrid { grid-template-columns: 1fr; }
  .distributed-led-dapin .expgrid { grid-template-columns: repeat(2, 1fr); }
  .distributed-led-dapin .footer__in { grid-template-columns: 1fr 1fr; }
  .distributed-led-dapin .cta__in { grid-template-columns: 1fr; }
  .distributed-led-dapin .hero__in { max-width: 620px; }
}

@media (max-width: 860px) {
.distributed-led-dapin .compare { grid-template-columns: 1fr; }
.distributed-led-dapin .stats { grid-template-columns: repeat(2, 1fr); }
.distributed-led-dapin .stat { border-bottom: 1px solid var(--line-hair); padding-left: 0 !important; }
.distributed-led-dapin .stat:nth-child(2n) { border-right: 0; padding-left: var(--s4) !important; }
.distributed-led-dapin .wall__stage { grid-template-columns: repeat(6, 1fr); grid-template-rows: repeat(3, 1fr); }
.distributed-led-dapin .hero h1 { font-size: clamp(2.1rem, 8vw, 3rem); }
.distributed-led-dapin .hero__lead { font-size: 0.98rem; }
}

@media (max-width: 640px) {
.distributed-led-dapin .nav__phone { display: none; }
.distributed-led-dapin .hero { min-height: 92svh; }
.distributed-led-dapin .hero__bg { object-position: 78% center; }
.distributed-led-dapin .hero__veil { background: linear-gradient(180deg, rgba(7,9,16,0.55) 0%, rgba(7,9,16,0.72) 100%); }
.distributed-led-dapin .hero__scroll { display: none; }
.distributed-led-dapin .caps { grid-template-columns: 1fr; }
.distributed-led-dapin .steps { grid-template-columns: 1fr; }
.distributed-led-dapin .expgrid { grid-template-columns: 1fr; }
.distributed-led-dapin .facts { grid-template-columns: 1fr; }
.distributed-led-dapin .footer__in { grid-template-columns: 1fr; gap: var(--s5); }
.distributed-led-dapin .wall__stage { aspect-ratio: 4 / 3; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(4, 1fr); }
.distributed-led-dapin .faq__a { padding-right: 0; }
.distributed-led-dapin .footer__bar { flex-direction: column; gap: var(--s2); }
}

/* ---------- 21. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .distributed-led-dapin { scroll-behavior: auto; }
  .distributed-led-dapin *,
  .distributed-led-dapin *::before,
  .distributed-led-dapin *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .distributed-led-dapin [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .distributed-led-dapin .nav,
  .distributed-led-dapin .ticker { display: none; }
  .distributed-led-dapin { background: #fff; color: #000; }
}

/* ---------- Yuqi shell adapter ---------- */
.distributed-led-dapin {
  --dapin-header-height: var(--f-header-height, 72px);
  position: relative;
  isolation: isolate;
  background: var(--bg);
  overflow-wrap: anywhere;
}

.distributed-led-dapin .hero {
  min-height: calc(100svh - var(--dapin-header-height));
}

.distributed-led-dapin .hero__in {
  padding-block: clamp(2rem, 5vw, 4rem);
}

.distributed-led-dapin .arch,
.distributed-led-dapin #scenes,
.distributed-led-dapin #arch,
.distributed-led-dapin #capability,
.distributed-led-dapin #delivery,
.distributed-led-dapin #value,
.distributed-led-dapin #factory,
.distributed-led-dapin #contact {
  scroll-margin-top: calc(var(--dapin-header-height) + 20px);
}

@media (max-width: 640px) {
  .distributed-led-dapin {
    --dapin-header-height: var(--f-header-height, 68px);
  }

  .distributed-led-dapin .hero {
    min-height: calc(100svh - var(--dapin-header-height));
  }

  .distributed-led-dapin .hero__in {
    padding-block: 2rem 3rem;
  }
}