/* ============================================================
   DBM Landing — tech-HUD long-scroll
   ============================================================ */

:root {
  --bg: #f6faf6;
  --bg-2: #eef3ee;
  --bg-3: #e3ebe4;
  --panel: #ffffff;
  --line: #d6e0d8;
  --line-2: #bccabf;
  --ink: #10231a;
  --ink-2: #4d6155;
  --ink-3: #8b9b90;
  --ink-4: #c2cfc6;
  --accent: #1f9d57;       /* green signal */
  --accent-soft: rgba(31,157,87,0.5);
  --accent-2: #0c8a48;     /* deep green */
  --accent-3: #d23b3b;     /* alert red */
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --sans: "Space Grotesk", system-ui, sans-serif;
  --serif: "Space Grotesk", system-ui, sans-serif;
  --cn: "Noto Sans SC", "Space Grotesk", sans-serif;

  --pad-x: clamp(48px, 5vw, 96px);
  --maxw: 1440px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  min-width: 1200px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.005em;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* lang */
[data-lang="cn"] .en { display: none; }
[data-lang="en"] .cn { display: none; }
[data-lang="cn"] body { font-family: var(--cn); }

/* ─── Global FX ─── */
.scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 98;
  background: repeating-linear-gradient(
    to bottom,
    rgba(16,35,26,0.022) 0,
    rgba(16,35,26,0.022) 1px,
    transparent 1px,
    transparent 3px
  );
}
.noise {
  position: fixed; inset: 0; pointer-events: none; z-index: 99;
  opacity: 0.025;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(31,157,87,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,157,87,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ─── NAV ─── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 64px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex; align-items: center;
  padding: 0 var(--pad-x);
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
}
.nav .brand {
  display: flex; align-items: center; gap: 12px;
  color: var(--ink);
  font-weight: 700;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.18em;
}
.nav .brand .brand-logo {
  height: 40px; width: auto; display: block;
}
.nav .brand .mark {
  width: 22px; height: 22px;
  border: 1.5px solid var(--accent);
  border-radius: 0;
  background: transparent;
  position: relative; display: inline-block;
}
.nav .brand .mark::after {
  content: ""; position: absolute; inset: 4px;
  background: var(--accent); opacity: 0.8;
}
.nav .links {
  display: flex; gap: 28px;
  margin-left: 56px;
  color: var(--ink-2);
  flex: 1;
  font-size: 12px;
}
.nav .links a {
  position: relative; transition: color 0.2s;
  display: flex; align-items: center; gap: 8px;
  font-weight: 400;
  white-space: nowrap;
}
.nav .links a .num {
  font-family: var(--mono);
  font-size: 9px; color: var(--ink-3);
  letter-spacing: 0.18em;
}
.nav .links a:hover { color: var(--accent); }
.nav .links a.active { color: var(--accent); }
.nav .links a.active::before {
  content: ""; position: absolute; left: -10px; top: 50%; transform: translateY(-50%);
  width: 4px; height: 4px; background: var(--accent); border-radius: 0;
}
.nav .right { display: flex; align-items: center; gap: 20px; }
.nav .lang {
  display: flex; gap: 0;
  border: 1px solid var(--line-2);
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.18em;
}
.nav .lang button {
  background: transparent; border: 0;
  padding: 6px 12px;
  color: var(--ink-3); font-family: inherit; font-size: inherit;
  letter-spacing: inherit;
  transition: color 0.2s;
}
.nav .lang button.active { background: var(--accent); color: var(--bg); }
.nav .cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px;
  background: var(--accent); color: var(--bg);
  border: 0; border-radius: 0;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-family: var(--mono); font-size: 11px;
  transition: filter 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 14px rgba(31,157,87,0.35);
}
.nav .cta:hover { filter: brightness(1.1); box-shadow: 0 0 24px rgba(31,157,87,0.55); }
.nav .cta::after { content: "→"; font-weight: 400; font-size: 12px; opacity: 1; }

.scroll-progress {
  position: fixed; left: 0; top: 64px; height: 1px;
  background: var(--accent);
  z-index: 51;
  width: 0;
  box-shadow: 0 0 12px var(--accent);
  transition: width 0.05s linear;
}

.side-rail {
  position: fixed; right: 24px; top: 50%; transform: translateY(-50%);
  z-index: 40;
  display: flex; flex-direction: column; gap: 18px;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.side-rail .sr-item {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer;
  transition: color 0.2s;
  opacity: 1;
}
.side-rail .sr-item:hover { color: var(--accent); }
.side-rail .sr-item .dot {
  width: 6px; height: 6px; border: 1px solid var(--ink-3);
  border-radius: 0;
  background: transparent;
  display: inline-block;
  transition: all 0.2s;
}
.side-rail .sr-item.active { color: var(--accent); }
.side-rail .sr-item.active .dot { background: var(--accent); border-color: var(--accent); width: 6px; height: 6px; box-shadow: 0 0 10px var(--accent); }

/* ─── Section primitives ─── */
.section {
  position: relative;
  padding: 120px var(--pad-x);
  border-bottom: 1px solid var(--line);
}
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section-num {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 32px;
}
.section-num .n {
  width: 24px; height: 24px;
  border: 1px solid var(--accent); border-radius: 50%;
  display: grid; place-items: center;
  font-size: 10px; color: var(--accent);
  font-weight: 500;
}
.section-num::before {
  content: ""; width: 40px; height: 1px; background: var(--accent);
  opacity: 1;
}

.section-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(56px, 6vw, 84px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  color: var(--ink);
  text-wrap: balance;
}
.section-title .acc { color: var(--accent); font-style: normal; font-weight: 700; }
[data-lang="cn"] .section-title { font-family: var(--cn); font-weight: 900; letter-spacing: -0.02em; }
[data-lang="cn"] .section-title .acc { font-family: var(--cn); font-weight: 900; }

.section-sub {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.18em;
  color: var(--ink-2); text-transform: uppercase;
  max-width: 56ch;
  line-height: 1.7;
  font-weight: 400;
}

/* ─── HUD frame ─── */
.hud-frame {
  position: relative;
  border: 1px solid var(--line-2);
  background: var(--panel);
}
.hud-frame .corner {
  position: absolute; width: 14px; height: 14px;
  pointer-events: none;
}
.hud-frame .corner.tl { top: -1px; left: -1px; border-top: 2px solid var(--accent); border-left: 2px solid var(--accent); }
.hud-frame .corner.tr { top: -1px; right: -1px; border-top: 2px solid var(--accent); border-right: 2px solid var(--accent); }
.hud-frame .corner.bl { bottom: -1px; left: -1px; border-bottom: 2px solid var(--accent); border-left: 2px solid var(--accent); }
.hud-frame .corner.br { bottom: -1px; right: -1px; border-bottom: 2px solid var(--accent); border-right: 2px solid var(--accent); }

/* ─── HERO ─── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 820px;
  padding: 64px var(--pad-x) 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.hero .grid-bg { background-size: 80px 80px; opacity: 1; }
.hero .vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 65% 50%, transparent 40%, var(--bg) 96%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 2;
  max-width: var(--maxw); margin: 0 auto;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}
.hero .meta-row {
  position: absolute;
  top: 100px; left: var(--pad-x); right: var(--pad-x);
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.28em;
  color: var(--ink-3); text-transform: uppercase;
  z-index: 3;
}
.hero .meta-row .lock {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent);
}
.hero .meta-row .lock::before {
  content: ""; width: 6px; height: 6px; background: var(--accent);
  display: inline-block;
  animation: pulse 1.6s infinite;
}
@keyframes pulse { 50% { opacity: 0.3; } }

.hero h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(44px, 5.4vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  margin: 0 0 32px;
  color: var(--ink);
}
.hero h1 .acc {
  color: var(--accent);
  text-shadow: 0 0 32px rgba(31,157,87,0.4);
  font-style: normal; font-weight: 700;
}
.hero h1 .stack { display: block; }
[data-lang="cn"] .hero h1 { font-family: var(--cn); font-weight: 900; font-size: clamp(42px, 4.6vw, 78px); letter-spacing: -0.02em; }
[data-lang="cn"] .hero h1 .stack { display: inline; }
[data-lang="cn"] .hero h1 .acc { font-family: var(--cn); font-weight: 900; }

.hero .lede {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  max-width: 44ch;
  line-height: 1.7;
  margin: 0 0 40px;
  border-left: 2px solid var(--accent);
  padding-left: 18px;
}
.hero .lede::first-letter, .hero .lede {
}
.hero .cta-row {
  display: flex; gap: 16px; align-items: center;
}
.hero .btn-primary {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 18px 28px;
  background: var(--accent); color: var(--bg);
  border: 0; border-radius: 0;
  font-weight: 700;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.22em; text-transform: uppercase;
  transition: filter 0.2s, box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 0 24px rgba(31,157,87,0.35);
  position: relative;
}
.hero .btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 4px 32px rgba(31,157,87,0.55); }
.hero .btn-ghost {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 18px 24px;
  background: transparent; color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: 0;
  font-family: var(--mono); font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.22em; text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s;
}
.hero .btn-ghost::after { content: none; }
.hero .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero .console { display: block;
  margin-top: 48px;
  background: rgba(244,248,244,0.85);
  border: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px;
  max-width: 480px;
  letter-spacing: 0.04em;
}
.hero .console .head {
  display: flex; justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-3);
}
.hero .console .head .dots span { display:inline-block; width:8px; height:8px; border-radius:50%; background: var(--ink-4); margin-left:4px; }
.hero .console .body { padding: 14px; display: flex; flex-direction: column; gap: 4px; color: var(--ink-2); }
.hero .console .body .ok { color: var(--accent-2); }
.hero .console .body .v { color: var(--accent); }
.hero .console .body .cur::after { content: "▌"; color: var(--accent); animation: blink 1s steps(2) infinite; margin-left: 4px; }
@keyframes blink { 50% { opacity: 0; } }

/* hero right - radar + cube */
.hero-radar {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 600px;
  margin-left: auto;
}
.hero-radar .radar-ring {
  position: absolute; inset: 0;
  border: 1px solid rgba(31,157,87,0.2);
  border-radius: 50%;
}
.hero-radar .radar-ring.r2 { inset: 12%; border-color: rgba(31,157,87,0.16); }
.hero-radar .radar-ring.r3 { inset: 24%; border-color: rgba(31,157,87,0.13); }
.hero-radar .radar-ring.r4 { inset: 36%; border-color: rgba(31,157,87,0.1); }
.hero-radar .radar-cross {
  position: absolute; inset: 0; pointer-events: none;
}
.hero-radar .radar-cross::before, .hero-radar .radar-cross::after {
  content: ""; position: absolute; background: rgba(31,157,87,0.15);
}
.hero-radar .radar-cross::before { left: 50%; top: 0; bottom: 0; width: 1px; }
.hero-radar .radar-cross::after { top: 50%; left: 0; right: 0; height: 1px; }
.hero-radar .sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, transparent 320deg, rgba(31,157,87,0.5) 355deg, rgba(31,157,87,0.0) 360deg);
  animation: spin 6s linear infinite;
  mix-blend-mode: multiply;
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero-radar .ping {
  position: absolute; width: 6px; height: 6px;
  background: var(--accent); border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}
.hero-radar .ping.p1 { top: 22%; left: 68%; }
.hero-radar .ping.p2 { top: 60%; left: 30%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }
.hero-radar .ping.p3 { top: 75%; left: 70%; }

.hero-radar .anno {
  position: absolute;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em;
  color: var(--ink-2); text-transform: uppercase;
}
.hero-radar .anno .acc { color: var(--accent); }
.hero-radar .anno .l {
  position: absolute; background: var(--accent); height: 1px;
}
.hero-radar .a1 { top: 18%; left: 75%; }
.hero-radar .a1 .l { left: -40px; top: 6px; width: 36px; }
.hero-radar .a2 { top: 56%; left: 8%; text-align: right; }
.hero-radar .a2 .l { right: -40px; top: 6px; width: 36px; }
.hero-radar .a3 { top: 78%; left: 78%; }
.hero-radar .a3 .l { left: -40px; top: 6px; width: 36px; }

/* cube */
.cube-stage {
  position: absolute;
  inset: 30%;
  perspective: 1200px;
}
.cube {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d;
  animation: cubespin 24s linear infinite;
}
@keyframes cubespin {
  from { transform: rotateX(-15deg) rotateY(0deg); }
  to   { transform: rotateX(-15deg) rotateY(360deg); }
}
.cube .face {
  position: absolute; inset: 0;
  border: 1.5px solid var(--accent);
  background: rgba(31,157,87,0.04);
  display: grid; place-items: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  backdrop-filter: blur(2px);
}
.cube .face .tag {
  position: absolute; top: 10px; left: 10px;
  font-size: 9px; color: var(--ink-3);
}
.cube .face .num {
  font-size: 36px; color: var(--ink); font-weight: 700; font-family: var(--sans);
  letter-spacing: -0.02em;
  font-variation-settings: normal;
}
.cube .f1 { transform: translateZ(120px); }
.cube .f2 { transform: rotateY(180deg) translateZ(120px); }
.cube .f3 { transform: rotateY(90deg) translateZ(120px); }
.cube .f4 { transform: rotateY(-90deg) translateZ(120px); }
.cube .f5 { transform: rotateX(90deg) translateZ(120px); }
.cube .f6 { transform: rotateX(-90deg) translateZ(120px); }

/* hero scroll cue */
.scroll-cue {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 3;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em;
  color: var(--ink-3); text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.scroll-cue .arrow {
  width: 1px; height: 32px; background: var(--accent);
  position: relative; overflow: hidden;
}
.scroll-cue .arrow::after {
  content: ""; position: absolute; left: -1px; top: 0; width: 3px; height: 8px;
  background: var(--accent);
  animation: cue 1.6s ease-in-out infinite;
}
@keyframes cue { from { top: -8px; } to { top: 32px; } }

/* ─── COMPANY (centered logo + scroll-driven reveals) ─── */
.s-company {
  background: var(--bg);
  padding: 0;
  position: relative;
  height: 320vh;
}
.s-company .cmp-stage {
  position: sticky; top: 0;
  height: 100vh;
  display: grid; place-items: center;
  overflow: hidden;
  padding: 0 64px;
}
.s-company .cmp-stage::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(31,157,87,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,157,87,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.s-company .cmp-stage-inner {
  position: relative;
  width: min(1280px, 100%);
  height: min(720px, 84vh);
}

/* Center brand mark */
.s-company .cmp-center {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 320px; height: 320px;
  z-index: 2;
}
/* logo as cyan-masked schematic element */
.s-company .cmp-mark {
  position: absolute;
  left: 50%; top: 50%;
  width: 720px; height: 720px;
  transform: translate(-50%, calc(-50% + 38px));
  filter: drop-shadow(0 0 20px rgba(31,157,87,0.22));
  z-index: 2;
}
.s-company .cmp-mark img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  pointer-events: none;
  display: block;
  mix-blend-mode: normal;
}
/* scanlines overlay disabled to keep logo crisp */
.s-company .cmp-mark::after {
  content: none;
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 3px,
    rgba(0,0,0,0.35) 3px,
    rgba(0,0,0,0.35) 4px
  );
  mix-blend-mode: multiply;
  pointer-events: none;
}
/* corner brackets */
.s-company .cmp-bracket {
  position: absolute;
  width: 24px; height: 24px;
  border: 1.5px solid var(--accent);
  filter: drop-shadow(0 0 4px rgba(31,157,87,0.6));
}
.s-company .cmp-bracket.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.s-company .cmp-bracket.tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.s-company .cmp-bracket.bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.s-company .cmp-bracket.br { bottom: 0; right: 0; border-left: none; border-top: none; }
/* crosshair */
.s-company .cmp-cross {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 1;
}
.s-company .cmp-cross::before,
.s-company .cmp-cross::after {
  content: "";
  position: absolute;
  background: rgba(31,157,87,0.18);
}
.s-company .cmp-cross::before {
  left: 50%; top: -8px; bottom: -8px;
  width: 1px; transform: translateX(-50%);
}
.s-company .cmp-cross::after {
  top: 50%; left: -8px; right: -8px;
  height: 1px; transform: translateY(-50%);
}
/* tick marks on edges */
.s-company .cmp-ticks {
  position: absolute; inset: -1px;
  pointer-events: none;
}
.s-company .cmp-ticks span {
  position: absolute;
  background: var(--accent);
  opacity: 0.8;
}
.s-company .cmp-ticks span.t-top    { top: -6px; left: 50%; width: 1px; height: 6px; transform: translateX(-50%); }
.s-company .cmp-ticks span.t-right  { right: -6px; top: 50%; width: 6px; height: 1px; transform: translateY(-50%); }
.s-company .cmp-ticks span.t-bottom { bottom: -6px; left: 50%; width: 1px; height: 6px; transform: translateX(-50%); }
.s-company .cmp-ticks span.t-left   { left: -6px; top: 50%; width: 6px; height: 1px; transform: translateY(-50%); }

/* dimension labels */
.s-company .cmp-dim {
  position: absolute;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--accent); text-transform: uppercase;
  opacity: 0.85;
  white-space: nowrap;
}
.s-company .cmp-dim.d-top    { top: -22px; left: 50%; transform: translateX(-50%); }
.s-company .cmp-dim.d-bottom { bottom: -22px; left: 50%; transform: translateX(-50%); color: var(--ink-3); letter-spacing: 0.32em; }
.s-company .cmp-dim.d-right  { right: -8px; top: 50%; transform: translateY(-50%) rotate(90deg); transform-origin: right center; padding-right: 8px; color: var(--ink-3); }

.s-company .cmp-rings { display: none; }
.s-company .cmp-center-tag { display: none; }

/* Arrows */
.s-company .cmp-arrows {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  color: var(--accent);
  z-index: 1;
}
.s-company .cmp-arrows .arrow {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  filter: drop-shadow(0 0 6px rgba(31,157,87,0.5));
  transition: stroke-dashoffset 1s ease;
  opacity: 0;
}
.s-company .cmp-arrows .arrow.in {
  stroke-dashoffset: 0;
  opacity: 0.9;
  transition: stroke-dashoffset 1s ease, opacity 0.4s ease;
}

/* Panels */
.s-company .cmp-panel {
  position: absolute;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  z-index: 3;
}
.s-company .cmp-panel.in {
  opacity: 1;
  transform: translateY(0);
}
.s-company .cmp-panel.p-1 {
  left: 0; top: 4%;
  max-width: 460px;
}
.s-company .cmp-panel.p-2 {
  left: 0; bottom: 4%;
  max-width: 520px;
}
.s-company .cmp-panel.p-3 {
  right: 0; top: 4%;
  width: 360px;
}

.s-company .cmp-mk {
  display: inline-flex; align-items: baseline; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
  margin-bottom: 18px;
}
.s-company .cmp-mk .step-n { color: var(--accent); font-size: 14px; }

.s-company .cmp-title {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(36px, 4.2vw, 56px);
  letter-spacing: -0.02em; line-height: 1.05;
  color: var(--ink); margin: 0;
  text-wrap: balance;
}
.s-company .cmp-title .acc { color: var(--accent); }
[data-lang="cn"] .s-company .cmp-title { font-family: var(--cn); font-weight: 800; }

.s-company .cmp-sub-text {
  font-family: var(--mono); font-size: 13px; line-height: 1.75;
  color: var(--ink-2); margin: 0;
}
[data-lang="cn"] .s-company .cmp-sub-text { font-family: var(--cn); font-size: 14px; }
.s-company .cmp-sub-line {
  display: block; height: 1px; width: 96px;
  background: var(--accent); margin-top: 18px;
  box-shadow: 0 0 6px var(--accent);
}

.s-company .cmp-logo {
  display: flex; align-items: center; gap: 12px;
  margin-top: 14px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.22em; color: var(--ink); text-transform: uppercase;
}
.s-company .cmp-logo .mark {
  width: 18px; height: 18px; border: 1.5px solid var(--accent);
  position: relative;
}
.s-company .cmp-logo .mark::after {
  content: ""; position: absolute; inset: 3px; background: var(--accent);
}

/* Progress dots */
.s-company .cmp-progress {
  position: absolute;
  left: 50%; bottom: -56px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.s-company .cmp-progress-label {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.32em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-company .cmp-progress-dots {
  display: flex; gap: 14px;
}
.s-company .cmp-progress-dots .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.s-company .cmp-progress-dots .dot.in {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

@media (max-width: 980px) {
  .s-company { height: auto; }
  .s-company .cmp-stage { position: relative; height: auto; padding: 80px 24px; }
  .s-company .cmp-stage-inner { height: auto; display: flex; flex-direction: column; gap: 40px; }
  .s-company .cmp-center { position: relative; left: auto; top: auto; transform: none; margin: 0 auto; }
  .s-company .cmp-arrows { display: none; }
  .s-company .cmp-panel { position: relative; left: auto; right: auto; top: auto; bottom: auto; max-width: 100%; width: 100%; opacity: 1; transform: none; }
  .s-company .cmp-progress { display: none; }
}

/* legacy cmp-frame (unused, hidden) */
.s-company .cmp-frame { display: none; }
.s-company .cmp-tl, .s-company .cmp-tr, .s-company .cmp-bl, .s-company .cmp-br { display: none; }

.s-company .cmp-frame > * { min-width: 0; }
.cmp-mk {
  display: inline-flex; align-items: baseline; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 18px;
}
.cmp-tl { padding: 8px 0; display: flex; flex-direction: column; }
.cmp-title {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(48px, 5vw, 72px); line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 0 0 32px; color: var(--ink); text-wrap: balance;
}
.cmp-title .acc { color: var(--accent); }
[data-lang="cn"] .cmp-title { font-family: var(--cn); font-weight: 900; letter-spacing: -0.01em; }
.cmp-sub { border-top: 1px solid var(--line); padding-top: 18px; max-width: 50ch; }
.cmp-sub p {
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  color: var(--ink-2); margin: 0;
}

.cmp-tr { display: flex; flex-direction: column; gap: 14px; }
.cmp-reel {
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  position: relative;
  height: 180px;
  mask: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
  -webkit-mask: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
}
.cmp-reel-track {
  display: flex; gap: 0; height: 100%;
  animation: cmp-reel 22s linear infinite;
  width: max-content;
}
@keyframes cmp-reel { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.cmp-reel-card {
  flex-shrink: 0;
  width: 200px; height: 100%;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 18px;
  background:
    repeating-linear-gradient(45deg, rgba(31,157,87,0.04) 0 2px, transparent 2px 8px),
    var(--panel);
  position: relative;
}
.cmp-reel-card::before {
  content: ""; position: absolute; left: 18px; top: 18px;
  width: 8px; height: 8px; border: 1px solid var(--ink-3);
}
.cmp-reel-card .t {
  font-family: var(--sans); font-weight: 700; font-size: 22px;
  color: var(--ink); letter-spacing: -0.01em;
}
.cmp-reel-card .s {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase; margin-top: 4px;
}
.cmp-reel-card.live { background: rgba(31,157,87,0.08); }
.cmp-reel-card.live::before { border-color: var(--accent); background: var(--accent); }
.cmp-reel-card.live .t { color: var(--accent); }
.cmp-reel-card.live .s { color: var(--accent); }
.cmp-logo {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--line);
  padding: 14px 18px; background: var(--bg);
  font-family: var(--mono); font-weight: 700; font-size: 12px;
  letter-spacing: 0.22em; color: var(--ink); text-transform: uppercase;
}
.cmp-logo .mark {
  width: 18px; height: 18px; border: 1.5px solid var(--accent);
  position: relative;
}
.cmp-logo .mark::after { content: ""; position: absolute; inset: 3px; background: var(--accent); }

.cmp-bl { grid-column: 1; }
.cmp-prod {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  height: 360px; overflow: hidden;
  display: grid; place-items: center;
  color: var(--accent);
}
.cmp-prod-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(31,157,87,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,157,87,0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}
.cmp-prod-svg { width: 80%; height: 80%; position: relative; opacity: 0.9; }
.cmp-prod-tag {
  position: absolute; left: 20px; bottom: 16px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--accent); text-transform: uppercase;
}

.cmp-br { display: flex; flex-direction: column; gap: 28px; justify-content: space-between; padding-top: 8px; }
.cmp-tag {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(36px, 4vw, 56px); line-height: 0.95;
  letter-spacing: -0.025em;
  margin: 0; color: var(--ink); text-transform: uppercase;
}
.cmp-tag .acc { color: var(--accent); }
[data-lang="cn"] .cmp-tag { font-family: var(--cn); font-weight: 900; letter-spacing: -0.01em; text-transform: none; }
.cmp-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  border-top: 1px solid var(--line); padding-top: 20px;
}
.cmp-stats > div { display: flex; flex-direction: column; gap: 6px; }
.cmp-stats .v {
  font-family: var(--sans); font-weight: 700; font-size: 36px;
  letter-spacing: -0.03em; color: var(--ink); line-height: 1;
}
.cmp-stats .v .u { font-family: var(--mono); font-size: 13px; color: var(--accent); margin-left: 2px; }
.cmp-stats .k {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}

/* ─── COMPANY (legacy) ─── */
.s-company {
  background: var(--bg);
}
.s-company .stage {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
  align-items: start;
}
.s-company .left .section-title { max-width: 14ch; }
.s-company .copy {
  margin-top: 32px;
  max-width: 44ch;
  font-size: 14px; color: var(--ink-2); line-height: 1.7;
  font-family: var(--mono); font-weight: 400; letter-spacing: 0.04em;
}
.s-company .stat-grid {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  background: var(--panel);
  gap: 0;
}
.s-company .stat-grid .cell {
  padding: 24px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
}
.s-company .stat-grid .cell:last-child { border-right: 0; padding-right: 24px; }
.s-company .stat-grid .cell + .cell { padding-left: 24px; }
.s-company .stat-grid .cell .k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-company .stat-grid .cell .v {
  font-family: var(--sans); font-weight: 700;
  font-size: 56px; line-height: 1; letter-spacing: -0.03em;
  color: var(--ink);
  font-style: normal;
}
.s-company .stat-grid .cell .v .u {
  font-family: var(--mono); font-style: normal;
  font-size: 18px; color: var(--accent);
  margin-left: 2px; font-weight: 500;
}
.s-company .stat-grid .cell .d {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em;
  color: var(--accent); text-transform: uppercase;
}

.s-company .timeline {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 0;
}
.s-company .timeline .th {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-company .timeline .th .acc { color: var(--accent); }
.s-company .timeline .row {
  display: grid; grid-template-columns: 80px 1fr 90px;
  gap: 20px; padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 12px;
  align-items: baseline;
  transition: background 0.2s;
}
.s-company .timeline .row:last-child { border-bottom: 0; }
.s-company .timeline .row .yr {
  font-family: var(--sans); font-weight: 700; font-size: 18px;
  color: var(--ink); letter-spacing: -0.02em;
  font-style: normal;
}
.s-company .timeline .row .ev { color: var(--ink-2); line-height: 1.6; font-size: 12px; }
.s-company .timeline .row .id { color: var(--ink-3); font-size: 10px; letter-spacing: 0.22em; text-align: right; font-family: var(--mono); }
.s-company .timeline .row.now { background: rgba(31,157,87,0.06); }
.s-company .timeline .row.now .yr { color: var(--accent); font-style: normal; }
.s-company .timeline .row.now .id { color: var(--accent); }

/* ─── PRODUCT (sticky blueprint) ─── */
.s-product {
  position: relative;
  background: var(--bg-2);
  padding: 0;
  border-bottom: 1px solid var(--line);
}
.s-product .sticky-track {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.s-product .left {
  position: sticky; top: 64px;
  height: calc(100vh - 64px);
  display: flex; align-items: center; justify-content: center;
  padding: 60px var(--pad-x);
  background:
    linear-gradient(rgba(31,157,87,0.03) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(31,157,87,0.03) 1px, transparent 1px) 0 0 / 40px 40px,
    var(--bg-2);
  border-right: 1px solid var(--line);
}
.s-product .blueprint {
  width: 100%;
  max-width: 640px;
  position: relative;
  aspect-ratio: 1.1;
}
.s-product .blueprint svg {
  width: 100%; height: 100%; overflow: visible;
  color: var(--accent);
}
.s-product .blueprint .anno-svg text {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em;
  fill: var(--ink-2);
}
.s-product .blueprint .hot {
  opacity: 0; transition: opacity 0.6s;
}
.s-product .blueprint .hot.on { opacity: 1; }

.s-product .right {
  padding: 120px var(--pad-x);
  display: flex; flex-direction: column;
  gap: 200px;
}
.s-product .step {
  min-height: 500px;
  display: flex; flex-direction: column;
  justify-content: center;
}
.s-product .step .id {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 18px;
  display: inline-flex; align-items: center; gap: 14px;
}
.s-product .step .id::before {
  content: ""; width: 36px; height: 1px; background: var(--accent);
}
.s-product .step h3 {
  font-family: var(--sans); font-weight: 700;
  font-size: 56px; line-height: 1.0; letter-spacing: -0.03em;
  margin: 0 0 24px; color: var(--ink);
}
[data-lang="cn"] .s-product .step h3 { font-weight: 900; }
.s-product .step p {
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  color: var(--ink-2); max-width: 44ch;
  margin: 0 0 28px;
}
.s-product .step .specs {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  background: var(--panel);
  max-width: 480px;
}
.s-product .step .specs .sp {
  padding: 14px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.s-product .step .specs .sp:nth-child(even) { border-right: 0; }
.s-product .step .specs .sp:nth-last-child(-n+2) { border-bottom: 0; }
.s-product .step .specs .sp .k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase; display: block; margin-bottom: 6px;
}
.s-product .step .specs .sp .v {
  font-family: var(--sans); font-weight: 700; font-size: 22px;
  color: var(--ink); letter-spacing: -0.01em;
}
.s-product .step .specs .sp .v .u { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-left: 4px; font-weight: 500; }

/* ─── HOW IT WORKS pipeline ─── */
.s-pipeline { background: var(--bg); }
.s-pipeline .pipeline {
  margin-top: 80px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.s-pipeline .pipeline::before {
  content: ""; position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  opacity: 0.4;
}
.s-pipeline .stage {
  padding: 40px 32px;
  border-right: 1px solid var(--line);
  position: relative;
  background: var(--bg);
  min-height: 480px;
  display: flex; flex-direction: column;
}
.s-pipeline .stage + .stage { padding-left: 32px; }
.s-pipeline .stage:last-child { border-right: 0; padding-right: 32px; }
.s-pipeline .stage .num {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em;
  color: var(--accent); margin-bottom: 16px;
  display: flex; align-items: center; justify-content: space-between;
  text-transform: uppercase;
}
.s-pipeline .stage .num .id {
  width: 32px; height: 32px; border: 1px solid var(--accent);
  display: grid; place-items: center; border-radius: 50%;
  font-size: 12px; font-weight: 700;
  font-family: var(--mono); font-style: normal;
  color: var(--accent);
  letter-spacing: 0;
}
.s-pipeline .stage h3 {
  font-family: var(--sans); font-weight: 700;
  font-size: 28px; letter-spacing: -0.02em;
  margin: 0 0 16px; color: var(--ink); line-height: 1.1;
  font-variation-settings: normal;
}
[data-lang="cn"] .s-pipeline .stage h3 { font-family: var(--cn); font-weight: 900; }
.s-pipeline .stage p {
  font-family: var(--mono); font-size: 12px; line-height: 1.7;
  color: var(--ink-2); margin: 0 0 24px; font-weight: 400;
}
.s-pipeline .stage .vis {
  margin-top: auto;
  height: 140px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
  padding: 0;
}
.s-pipeline .stage .vis svg { width: 100%; height: 100%; color: var(--accent); opacity: 1; transition: opacity 0.3s; }
.s-pipeline .stage:hover .vis { border-color: var(--accent); }
.s-pipeline .stage .arrow-conn {
  position: absolute; top: 50%; right: -10px; transform: translateY(-50%);
  width: 20px; height: 20px;
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--accent);
  font-size: 10px;
  z-index: 2;
}
.s-pipeline .stage:last-child .arrow-conn { display: none; }

/* ─── SPECS terminal ─── */
.s-specs { background: var(--bg-2); }
.s-specs .terminal {
  margin-top: 64px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-family: var(--mono);
  position: relative;
}
.s-specs .terminal .th {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-specs .terminal .th .acc { color: var(--accent); }
.s-specs .terminal .th .dots { display: inline-block; }
.s-specs .terminal .th .dots span { display:inline-block; width:8px; height:8px; border-radius:50%; background: var(--ink-4); margin-left:4px; }
.s-specs .terminal .grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.s-specs .terminal .row {
  padding: 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
  transition: background 0.2s;
}
.s-specs .terminal .row:nth-child(3n+2) { padding-left: 28px; }
.s-specs .terminal .row:nth-child(3n) { padding-left: 28px; }
.s-specs .terminal .row:hover { background: rgba(31,157,87,0.03); }
.s-specs .terminal .row:nth-child(3n) { border-right: 0; }
.s-specs .terminal .row .id {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.22em; color: var(--accent);
  text-transform: uppercase;
}
.s-specs .terminal .row .k {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.18em; color: var(--ink-3);
  text-transform: uppercase; font-weight: 400;
}
.s-specs .terminal .row .v {
  font-family: var(--sans); font-weight: 700; font-size: 32px;
  color: var(--ink); letter-spacing: -0.02em; line-height: 1.1;
  font-style: normal;
  font-variation-settings: normal;
  margin-top: 0;
}
.s-specs .terminal .row .v .u {
  font-family: var(--mono); font-style: normal;
  font-size: 14px; color: var(--accent); margin-left: 4px; font-weight: 500;
}
.s-specs .terminal .row .bar {
  height: 2px; background: var(--line); margin-top: 8px;
  position: relative;
}
.s-specs .terminal .row .bar::after {
  content: ""; position: absolute; left: 0; top: 0; height: 100%;
  background: var(--accent);
  width: var(--bw, 50%);
  box-shadow: 0 0 8px var(--accent);
}

/* ─── MATERIALS ─── */
.s-materials { background: var(--bg); }
.s-materials .mat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px; margin-top: 56px;
}
.mat-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 0; overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}
.mat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.mat-id {
  position: absolute; top: 14px; right: 16px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); z-index: 2;
}
.mat-swatch {
  height: 120px; position: relative;
  background-image:
    linear-gradient(rgba(31,157,87,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,157,87,0.06) 1px, transparent 1px);
  background-size: 16px 16px;
  border-bottom: 1px solid var(--line);
}
.mat-swatch::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  transform: translate(-50%,-50%);
  width: 64px; height: 64px; border-radius: 50%;
  box-shadow: 0 0 40px currentColor;
}
.mat-swatch.s-low::after { background: #e8e4dc; color: rgba(232,228,220,0.4); }
.mat-swatch.s-mid::after { background: #b8c2cc; color: rgba(184,194,204,0.4); }
.mat-swatch.s-high::after { background: #1f9d57; color: rgba(31,157,87,0.5); }
.mat-swatch.s-le::after { background: #8aa4b8; color: rgba(138,164,184,0.4); }
.mat-swatch.s-esd::after { background: #c2a26a; color: rgba(194,162,106,0.4); }
.mat-swatch.s-pepp::after { background: #6e7681; color: rgba(110,118,129,0.5); border: 2px dashed rgba(31,157,87,0.6); }
.mat-swatch.s-fr::after { background: #ff6b3d; color: rgba(255,107,61,0.5); }
.mat-swatch.s-re::after { background: #4ecb71; color: rgba(78,203,113,0.4); }
.mat-swatch.s-sand::after { background: #d9c189; color: rgba(217,193,137,0.4); }
.mat-swatch.s-ceramic::after { background: #e8e4dc; color: rgba(232,228,220,0.4); }
.mat-swatch.s-steel::after { background: #b8c2cc; color: rgba(184,194,204,0.4); }

/* ─── Pipeline (pl-* — six-step EPP) ─── */
.s-pipeline .pipeline {
  display: grid; grid-template-columns: repeat(6, 1fr) ;
  gap: 0; margin-top: 56px;
  border: 1px solid var(--line);
  background: var(--panel);
}
.s-pipeline .pl-step {
  padding: 28px 22px; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 12px;
  position: relative;
}
.s-pipeline .pl-step:last-of-type { border-right: 0; }
.s-pipeline .pl-step .pl-n {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em;
  color: var(--accent);
}
.s-pipeline .pl-step h3 {
  font-family: var(--sans); font-weight: 700; font-size: 18px;
  letter-spacing: -0.01em; color: var(--ink); margin: 0;
}
[data-lang="cn"] .s-pipeline .pl-step h3 { font-family: var(--cn); font-weight: 800; }
.s-pipeline .pl-step p {
  font-family: var(--mono); font-size: 11px; line-height: 1.7;
  color: var(--ink-2); margin: 0;
}
.s-pipeline .pl-arrow {
  display: none;
}
@media (max-width: 1100px) {
  .s-pipeline .pipeline { grid-template-columns: repeat(3, 1fr); }
  .s-pipeline .pl-step:nth-of-type(3n) { border-right: 0; }
}
@media (max-width: 640px) {
  .s-pipeline .pipeline { grid-template-columns: 1fr; }
  .s-pipeline .pl-step { border-right: 0; border-bottom: 1px solid var(--line); }
}

/* ─── Cases (case-card) ─── */
.s-cases .cases {
  margin-top: 56px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.case-card {
  position: relative;
  padding: 24px; border: 1px solid var(--line);
  background: var(--panel);
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color 0.2s, transform 0.2s;
}
.case-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.case-card .case-id {
  position: absolute; top: 16px; right: 18px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3);
}
.case-card .case-cat {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--accent); text-transform: uppercase;
}
.case-card h3 {
  font-family: var(--sans); font-weight: 700; font-size: 22px;
  letter-spacing: -0.01em; color: var(--ink); margin: 0;
}
[data-lang="cn"] .case-card h3 { font-family: var(--cn); font-weight: 800; }
.case-card p {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.7;
  color: var(--ink-2); margin: 0; flex: 1;
}
.case-card .case-stats {
  display: flex; gap: 18px; padding-top: 10px;
  border-top: 1px solid var(--line);
}
.case-card .case-stats span {
  font-family: var(--sans); font-weight: 700; font-size: 18px;
  color: var(--ink); display: flex; align-items: baseline; gap: 4px;
}
.case-card .case-stats i {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase; font-style: normal;
}
@media (max-width: 980px) { .s-cases .cases { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .s-cases .cases { grid-template-columns: 1fr; } }

/* ─── Spec table ─── */
.spec-table {
  margin-top: 56px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--mono); font-size: 13px;
}
.sp-row {
  display: grid; grid-template-columns: 1.6fr 1fr 1.2fr 1.2fr;
  border-bottom: 1px solid var(--line);
}
.sp-row:last-child { border-bottom: 0; }
.sp-row > span {
  padding: 16px 20px;
  border-right: 1px solid var(--line);
  color: var(--ink-2);
  display: flex; align-items: center;
}
.sp-row > span:first-child { color: var(--ink); font-weight: 600; }
.sp-row > span:last-child { border-right: 0; }
.sp-row.sp-head > span {
  background: var(--bg);
  font-size: 10px; letter-spacing: 0.22em; color: var(--accent);
  text-transform: uppercase;
}
.sp-row .hi { color: var(--accent); font-weight: 700; }
.spec-foot {
  margin-top: 24px; padding: 14px 20px;
  border: 1px dashed var(--line);
  font-family: var(--mono); font-size: 11px; color: var(--ink-2);
  letter-spacing: 0.04em;
}
.mat-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.mat-body h3 {
  font-family: var(--sans); font-weight: 700; font-size: 22px;
  letter-spacing: -0.01em; color: var(--ink); margin: 0;
}
[data-lang="cn"] .mat-body h3 { font-family: var(--cn); font-weight: 800; }
.mat-meta {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em;
  color: var(--accent); text-transform: uppercase; margin: 0;
}
.mat-desc {
  font-family: var(--mono); font-size: 12px; line-height: 1.6;
  color: var(--ink-2); margin: 0; flex: 1;
}
.mat-bar {
  display: flex; align-items: center; gap: 10px;
  height: 4px; background: var(--line);
  margin-top: 8px; position: relative;
}
.mat-bar span {
  display: block; height: 100%; background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.mat-bar i {
  position: absolute; right: 0; top: -16px;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase; font-style: normal;
}
.mat-foot {
  margin-top: 32px; padding: 16px 20px;
  border: 1px dashed var(--line);
  font-family: var(--mono); font-size: 11px; color: var(--ink-2);
  letter-spacing: 0.04em;
}
@media (max-width: 980px) {
  .s-materials .mat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .s-materials .mat-grid { grid-template-columns: 1fr; }
}

/* ─── USE CASES ─── */
.s-cases { background: var(--bg); }
.s-cases .cases {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.s-cases .case {
  border: 1px solid var(--line);
  background: var(--panel);
  display: flex; flex-direction: column;
  position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.s-cases .case:hover { border-color: var(--accent); transform: translateY(-2px); }
.s-cases .case .img {
  height: 240px;
  background: var(--bg-2);
  border: 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: grid; place-items: center;
}
.s-cases .case .img svg { width: 70%; height: 70%; color: var(--accent); opacity: 0.85; }
.s-cases .case .img::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(31,157,87,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,157,87,0.05) 1px, transparent 1px);
  background-size: 16px 16px;
}
.s-cases .case .img::after { content: none; }
.s-cases .case .body {
  padding: 24px 24px 28px;
  display: flex; flex-direction: column; gap: 12px;
}
.s-cases .case .id {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em;
  color: var(--accent); text-transform: uppercase;
  display: flex; justify-content: space-between;
}
.s-cases .case .id .acc { color: var(--accent); }
.s-cases .case h4 {
  font-family: var(--sans); font-weight: 700;
  font-size: 22px; letter-spacing: -0.01em; line-height: 1.2;
  margin: 0; color: var(--ink);
  font-variation-settings: normal;
}
[data-lang="cn"] .s-cases .case h4 { font-family: var(--cn); font-weight: 900; }
.s-cases .case p {
  font-family: var(--mono); font-size: 12px; line-height: 1.7;
  color: var(--ink-2); margin: 0; font-weight: 400;
}
.s-cases .case .meta {
  display: flex; gap: 18px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.s-cases .case .meta .m {
  display: flex; flex-direction: column; gap: 2px;
}
.s-cases .case .meta .m .mk {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-cases .case .meta .m .mv {
  font-family: var(--sans); font-weight: 700; font-style: normal;
  font-size: 18px; color: var(--accent); letter-spacing: -0.01em;
  font-variation-settings: normal;
}

/* ─── CUSTOMERS (magnificent) ─── */
.s-customers {
  position: relative;
  background: var(--bg);
  padding: 160px 0 140px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.cust-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  mask: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
}
.cust-inner {
  position: relative;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.cust-head { margin-bottom: 100px; }
.cust-title {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(56px, 6vw, 84px);
  letter-spacing: -0.03em;
  line-height: 1.0;
  color: var(--ink);
  margin: 24px 0 32px;
  max-width: 18ch;
}
[data-lang="cn"] .cust-title { font-family: var(--cn); font-weight: 700; letter-spacing: -0.02em; }
.cust-title .acc { color: var(--accent); }
.cust-lede {
  font-family: var(--sans); font-size: 18px; line-height: 1.55;
  color: var(--ink-2); max-width: 60ch; font-weight: 400;
}
[data-lang="cn"] .cust-lede { font-family: var(--cn); }
.cust-featured {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0;
  margin-bottom: 120px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.cust-feat {
  position: relative; padding: 48px 36px 56px;
  border-right: 1px solid var(--line);
  transition: background 0.4s;
}
.cust-feat:last-child { border-right: 0; }
.cust-feat:hover { background: var(--bg-2); }
.cust-feat-top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 24px; margin-bottom: 36px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.28em;
  color: var(--ink-3); text-transform: uppercase;
}
.cust-feat-id { color: var(--accent); }
.cust-feat-name {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(32px, 3.2vw, 46px);
  letter-spacing: -0.025em; line-height: 1.02;
  color: var(--ink); margin: 0 0 32px;
}
.cust-feat-role {
  font-family: var(--sans); font-size: 15px; line-height: 1.55;
  color: var(--ink-2); max-width: 42ch; margin: 0;
}
[data-lang="cn"] .cust-feat-role { font-family: var(--cn); }
.cust-feat-stripe {
  position: absolute; bottom: 0; left: 36px; right: 36px;
  height: 2px; background: var(--accent);
  transform: scaleX(0); transform-origin: left center;
  transition: transform 0.6s cubic-bezier(.2,.7,.2,1);
}
.cust-feat:hover .cust-feat-stripe { transform: scaleX(1); }
.cust-dom-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 48px; margin-bottom: 36px; padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.cust-dom-eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.3em;
  color: var(--ink-2); text-transform: uppercase; flex-shrink: 0;
}
.cust-dom-sub {
  font-family: var(--sans); font-size: 14px; line-height: 1.5;
  color: var(--ink-3); margin: 0; max-width: 60ch; text-align: right;
}
[data-lang="cn"] .cust-dom-sub { font-family: var(--cn); }
.cust-oem-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--line); border-top: 1px solid var(--line);
}
.oem-card {
  position: relative; aspect-ratio: 5 / 4;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px;
  display: flex; flex-direction: column; justify-content: space-between;
  background: var(--bg); overflow: hidden;
  transition: background 0.3s;
}
.oem-card::before {
  content: ""; position: absolute; inset: 0;
  background: var(--ink); transform: translateY(100%);
  transition: transform 0.5s cubic-bezier(.2,.7,.2,1); z-index: 0;
}
.oem-card:hover::before { transform: translateY(0); }
.oem-card:hover .oem-en, .oem-card:hover .oem-cn { color: var(--bg); }
.oem-card:hover .oem-num { color: var(--accent); }
.oem-num {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.28em;
  color: var(--ink-3); text-transform: uppercase;
  position: relative; z-index: 1; transition: color 0.3s;
}
.oem-en {
  font-family: var(--sans); font-weight: 700;
  font-size: clamp(22px, 2vw, 32px);
  letter-spacing: -0.02em; line-height: 1; color: var(--ink);
  position: relative; z-index: 1; transition: color 0.3s;
}
.oem-cn {
  font-family: var(--cn); font-weight: 600; font-size: 16px;
  letter-spacing: 0.04em; color: var(--ink-2); margin-top: 6px;
  position: relative; z-index: 1; transition: color 0.3s;
}
.cust-disclosure {
  margin-top: 48px; font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.16em; line-height: 1.7;
  color: var(--ink-3); text-transform: uppercase; max-width: 90ch;
}
@media (max-width: 900px) {
  .cust-featured { grid-template-columns: 1fr; }
  .cust-feat { border-right: 0; border-bottom: 1px solid var(--line); }
  .cust-feat:last-child { border-bottom: 0; }
  .cust-feat-name { font-size: clamp(36px, 8vw, 56px); }
  .cust-oem-grid { grid-template-columns: repeat(2, 1fr); }
  .cust-dom-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .cust-dom-sub { text-align: left; }
}

/* ─── LOGO WALL (legacy) ─── */
.s-logos {
  background: var(--bg-2);
  padding: 80px 0;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.s-logos .header {
  text-align: center;
  font-family: var(--mono); font-style: normal; font-weight: 400;
  font-size: 11px; letter-spacing: 0.3em;
  color: var(--ink-3); text-transform: uppercase;
  margin-bottom: 48px;
  display: flex; align-items: center; justify-content: center; gap: 18px;
  font-variation-settings: normal;
}
.s-logos .header::before, .s-logos .header::after {
  content: ""; width: 60px; height: 1px; background: var(--line-2);
}
.s-logos .marquee {
  display: flex; overflow: hidden;
  position: relative;
  mask: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.s-logos .marquee .track {
  display: flex; gap: 80px; padding: 0 40px;
  flex-shrink: 0;
  animation: lwm 36s linear infinite;
}
@keyframes lwm {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}
.s-logos .logo {
  flex-shrink: 0;
  height: 64px; width: 200px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--sans); font-weight: 700; font-style: normal;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  font-size: 16px;
  transition: color 0.2s, border-color 0.2s;
  position: relative;
  font-variation-settings: normal;
}
.s-logos .logo:hover { color: var(--accent); border-color: var(--accent); }
.s-logos .logo .sub {
  position: absolute; bottom: 6px; left: 10px; transform: none;
  font-family: var(--mono); font-size: 8px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
  font-style: normal;
  white-space: nowrap;
}

/* ─── FAQ ─── */
.s-faq { background: var(--bg); }
.s-faq .layout {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 80px;
  align-items: start;
}
.s-faq .layout .left { position: sticky; top: 100px; }
.s-faq .list {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--line);
}
.s-faq .item {
  border-bottom: 1px solid var(--line);
}
.s-faq .item .q {
  width: 100%; text-align: left;
  background: transparent; border: 0; color: var(--ink);
  padding: 24px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  font-family: var(--sans); font-weight: 700; font-size: 22px;
  letter-spacing: -0.01em; line-height: 1.2;
  cursor: pointer;
  transition: color 0.2s;
  font-variation-settings: normal;
}
[data-lang="cn"] .s-faq .item .q { font-family: var(--cn); font-weight: 900; letter-spacing: -0.01em; }
.s-faq .item .q:hover { color: var(--accent); }
.s-faq .item .q .num {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--accent); flex-shrink: 0;
  width: auto;
}
.s-faq .item .q .toggle {
  width: 24px; height: 24px;
  border: 1px solid var(--accent); color: var(--accent);
  display: grid; place-items: center;
  flex-shrink: 0;
  font-family: var(--mono); font-weight: 400; font-size: 14px;
  transition: transform 0.3s, background 0.3s, color 0.3s;
  margin-left: auto;
}
.s-faq .item.open .q { color: var(--ink); }
.s-faq .item.open .q .toggle { transform: rotate(45deg); background: var(--accent); color: var(--bg); }
/* jump-to-tool FAQ item */
.s-faq .item.item-tool .q .q-go {
  margin-left: auto; flex-shrink: 0;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); white-space: nowrap;
  transition: transform 0.2s ease;
}
[data-lang="cn"] .s-faq .item.item-tool .q .q-go { font-family: var(--cn); letter-spacing: 0.04em; }
.s-faq .item.item-tool .q:hover { color: var(--accent); }
.s-faq .item.item-tool .q:hover .q-go { transform: translateX(5px); }
#material-selector.tool-flash {
  animation: toolFlash 1.9s ease;
}
@keyframes toolFlash {
  0%   { box-shadow: 0 0 0 0 transparent; }
  12%  { box-shadow: 0 0 0 2px var(--accent), 0 0 30px var(--glow-mid, color-mix(in srgb, var(--accent) 33%, transparent)); }
  65%  { box-shadow: 0 0 0 2px var(--accent), 0 0 30px var(--glow-mid, color-mix(in srgb, var(--accent) 33%, transparent)); }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.s-faq .item .a {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease, padding 0.4s ease;
}
.s-faq .item.open .a { grid-template-rows: 1fr; padding-bottom: 24px; }
.s-faq .item .a > div {
  overflow: hidden;
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  color: var(--ink-2); max-width: 60ch;
  padding-left: 56px; font-weight: 400;
}

/* ─── CONTACT / RFQ ─── */
.s-contact {
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
}
.s-contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 80% 30%, rgba(31,157,87,0.08), transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(31,157,87,0.05), transparent 50%);
  pointer-events: none;
}
.s-contact .form-wrap {
  position: relative;
  display: grid; grid-template-columns: minmax(300px, 360px) 1fr; gap: 64px;
  margin-top: 64px;
  align-items: start;
}
.s-contact .info {
  position: sticky; top: 96px;
  align-self: start;
}
.s-contact .info .copy {
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  color: var(--ink-2); max-width: 44ch;
  margin: 0 0 28px; font-weight: 400;
}

/* process flow / next steps */
.s-contact .info .flow { margin-top: 28px; }
.s-contact .info .flow-eyebrow {
  display: block;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase; margin-bottom: 10px;
}
[data-lang="cn"] .s-contact .info .flow-eyebrow { font-family: var(--cn); letter-spacing: 0.1em; }
.s-contact .info .flow-steps {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column;
  border-left: 1px solid var(--line-2);
}
.s-contact .info .flow-steps li {
  position: relative;
  display: flex; align-items: baseline; gap: 14px;
  padding: 12px 0 12px 22px;
}
.s-contact .info .flow-steps li::before {
  content: ""; position: absolute; left: -4px; top: 17px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--bg-2); border: 1px solid var(--line-2);
}
.s-contact .info .flow-steps li:first-child::before {
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 8px rgba(31,157,87,0.5);
}
.s-contact .info .flow-steps .fs-n {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  color: var(--accent); flex-shrink: 0;
}
.s-contact .info .flow-steps .fs-t {
  font-family: var(--mono); font-size: 12px; color: var(--ink-2); line-height: 1.4;
}
[data-lang="cn"] .s-contact .info .flow-steps .fs-t { font-family: var(--cn); }
.s-contact .info .channels {
  display: flex; flex-direction: column; gap: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}
.s-contact .info .channels .ch {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  transition: background 0.2s;
}
.s-contact .info .channels .ch:last-child { border-bottom: 0; }
.s-contact .info .channels .ch .k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.s-contact .info .channels .ch .v {
  font-family: var(--mono); font-style: normal; font-weight: 400;
  font-size: 13px; color: var(--ink); letter-spacing: 0.04em;
  font-variation-settings: normal;
}
.s-contact .info .channels .ch .v.acc { color: var(--accent); }

.s-contact form {
  border: 1px solid var(--line-2);
  background: var(--panel);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: 36px 40px;
  display: flex; flex-direction: column; gap: 30px;
  position: relative;
  border-radius: 0;
}
/* field groups */
.s-contact form .fgroup {
  border: 0; margin: 0; padding: 0; min-width: 0;
  display: flex; flex-direction: column; gap: 18px;
}
.s-contact form .fgroup-head {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 0 0 12px;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  color: var(--ink); text-transform: uppercase;
}
.s-contact form .fgroup-head .gn {
  color: var(--accent); font-size: 11px; letter-spacing: 0.1em;
}
.s-contact form .fgroup-head .gt::before { content: "/ "; color: var(--ink-3); }
[data-lang="cn"] .s-contact form .fgroup-head { font-family: var(--cn); letter-spacing: 0.12em; }
.s-contact form .form-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em;
  color: var(--ink-3); text-transform: uppercase;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.s-contact form .form-head .acc { color: var(--accent); font-family: var(--mono); font-style: normal; font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; font-weight: 400; }
.s-contact form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.s-contact form .field { display: flex; flex-direction: column; gap: 6px; }
.s-contact form label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}
.s-contact form label .req { color: var(--accent-3); }
.s-contact form input,
.s-contact form textarea,
.s-contact form select {
  background: var(--bg); border: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  color: var(--ink);
  font-family: var(--mono); font-size: 13px; font-weight: 400;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  letter-spacing: 0.04em;
}
.s-contact form input::placeholder,
.s-contact form textarea::placeholder { color: var(--ink-3); }
.s-contact form input:focus,
.s-contact form textarea:focus,
.s-contact form select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(31,157,87,0.2);
}
.s-contact form textarea { resize: vertical; min-height: 100px; }
.s-contact form .submit {
  display: inline-flex; align-items: center; justify-content: center; gap: 14px;
  padding: 18px;
  background: var(--accent); color: var(--bg);
  border: 0; border-radius: 0;
  font-weight: 700;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.22em; text-transform: uppercase;
  margin-top: 12px;
  align-self: stretch;
  transition: filter 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 20px rgba(31,157,87,0.35);
}
.s-contact form .submit::after { content: none; }
.s-contact form .submit:hover { filter: brightness(1.1); transform: none; box-shadow: 0 0 32px rgba(31,157,87,0.55); }

/* multi-select chips + file upload + label hint */
.s-contact form label .hint {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em;
  color: var(--ink-4); text-transform: uppercase; margin-left: auto;
}
[data-lang="cn"] .s-contact form label .hint { font-family: var(--cn); letter-spacing: 0.06em; }
.s-contact form .checks { display: flex; flex-wrap: wrap; gap: 8px; }
.s-contact form .checks label {
  display: inline-flex; align-items: center; gap: 0;
  padding: 9px 13px; cursor: pointer;
  border: 1px solid var(--line-2); background: var(--bg);
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--ink-2); text-transform: none;
  transition: border-color .2s, color .2s, background .2s;
}
[data-lang="cn"] .s-contact form .checks label { font-family: var(--cn); }
.s-contact form .checks label:hover { border-color: var(--accent); color: var(--ink); }
.s-contact form .checks input { position: absolute; opacity: 0; width: 0; height: 0; }
.s-contact form .checks label:has(input:checked) {
  border-color: var(--accent); background: rgba(31,157,87,0.1); color: var(--accent);
}
.s-contact form input[type="file"] { padding: 10px 14px; cursor: pointer; font-size: 12px; }
.s-contact form input[type="file"]::file-selector-button {
  margin-right: 12px; padding: 7px 13px; cursor: pointer;
  border: 1px solid var(--line-2); background: var(--bg-2); color: var(--ink-2);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  transition: border-color .2s, color .2s;
}
.s-contact form input[type="file"]::file-selector-button:hover { border-color: var(--accent); color: var(--accent); }

/* ─── FOOTER ─── */
.footer {
  background: var(--bg);
  padding: 56px var(--pad-x) 32px;
  border-top: 1px solid var(--line);
}
.footer .row {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}
.footer h5 {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.28em;
  color: var(--ink-3); text-transform: uppercase;
  margin: 0 0 18px;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer ul a {
  font-family: var(--mono); font-size: 12px;
  color: var(--ink-2); letter-spacing: 0.04em;
  transition: color 0.2s;
  font-weight: 400;
}
.footer ul a:hover { color: var(--accent); }
.footer .brand {
  display: flex; flex-direction: column; gap: 16px;
}
.footer .brand .mark-row {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-weight: 700;
  font-size: 14px; letter-spacing: 0.2em;
  color: var(--ink);
  font-variation-settings: normal;
}
.footer .brand .mark-row .mark {
  width: 22px; height: 22px;
  border: 1.5px solid var(--accent);
  border-radius: 0;
  background: transparent;
  position: relative;
}
.footer .brand .mark-row .mark::after {
  content: ""; position: absolute; inset: 4px; background: var(--accent);
}
.footer .brand p {
  font-family: var(--mono); font-size: 12px; line-height: 1.7;
  color: var(--ink-3); margin: 0; max-width: 36ch;
  font-weight: 400;
}
.footer .legal {
  max-width: var(--maxw); margin: 24px auto 0;
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em;
  color: var(--ink-3); text-transform: uppercase;
}
.footer .legal .signal { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-2); }
.footer .legal .signal::before {
  content: ""; width: 6px; height: 6px; background: var(--accent-2); border-radius: 0;
  display: inline-block; animation: pulse 1.6s infinite;
}

/* reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}


/* ════════════════════════════════════════════════════════════════════════
   Teammate revisions — enlarged factory reel · product sample stage · solution image slots
   ════════════════════════════════════════════════════════════════════════ */

/* ── Product: sample stage (replaces the schematic blueprint) ── */
.s-product .product-stage {
  position: relative; width: 100%; max-width: 560px;
  padding: 26px; background: var(--panel); border: 1px solid var(--line);
}
.s-product .ps-corner {
  position: absolute; width: 18px; height: 18px; z-index: 3;
  border: 1.5px solid var(--accent);
  filter: drop-shadow(0 0 4px var(--glow-strong, var(--accent)));
}
.s-product .ps-corner.tl { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.s-product .ps-corner.tr { right: -1px; top: -1px; border-left: 0; border-bottom: 0; }
.s-product .ps-corner.bl { left: -1px; bottom: -1px; border-right: 0; border-top: 0; }
.s-product .ps-corner.br { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.s-product .ps-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ink-3);
}
.s-product .ps-top .ps-tag { color: var(--accent); }
[data-lang="cn"] .s-product .ps-top { font-family: var(--cn); letter-spacing: 0.08em; }
.s-product .ps-idx .cur { color: var(--accent); }
.s-product .ps-frame {
  position: relative; width: 100%; aspect-ratio: 4 / 3; overflow: hidden;
  border: 1px solid var(--line-2);
  background:
    repeating-linear-gradient(45deg, rgba(127,127,127,0.045) 0 11px, transparent 11px 22px),
    var(--bg-3);
}
.s-product .ps-gridlines {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-color, rgba(31,157,87,0.08)) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color, rgba(31,157,87,0.08)) 1px, transparent 1px);
  background-size: 40px 40px;
}
.s-product .ps-shot {
  position: absolute; inset: 0; display: block; width: 100%; height: 100%;
  opacity: 0; pointer-events: none; transition: opacity 0.5s ease;
}
.s-product .product-stage[data-active="1"] .ps-shot[data-mat="1"],
.s-product .product-stage[data-active="2"] .ps-shot[data-mat="2"],
.s-product .product-stage[data-active="3"] .ps-shot[data-mat="3"] {
  opacity: 1; pointer-events: auto; z-index: 2;
}
.s-product .ps-tick {
  position: absolute; left: 12px; bottom: 10px; z-index: 4; pointer-events: none;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; color: var(--ink-3);
}
.s-product .ps-cap { margin-top: 16px; min-height: 22px; }
.s-product .ps-cap-line {
  display: none;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em; color: var(--ink-2);
}
[data-lang="cn"] .s-product .ps-cap-line { font-family: var(--cn); letter-spacing: 0; }
.s-product .product-stage[data-active="1"] .ps-cap-line[data-mat="1"],
.s-product .product-stage[data-active="2"] .ps-cap-line[data-mat="2"],
.s-product .product-stage[data-active="3"] .ps-cap-line[data-mat="3"] { display: block; }

/* ── Solutions: per-card product image slot (replaces decorative swatch) ── */
.mat-card .mat-shot {
  display: block; width: 100%; height: auto; aspect-ratio: 3 / 2;
  border-bottom: 1px solid var(--line);
}
/* footer brand logo (replaces placeholder mark) */
.footer .brand .mark-row .mark-logo {
  height: 26px; width: auto; display: block;
}
/* company reel — factory photo cards (landscape, distinct ratio) */
.cmp-reel-card.photo { padding: 0; width: 392px; }
.cmp-reel-card.photo::before { display: none; }
.cmp-reel-card .reel-shot { display: block; width: 100%; height: 100%; }


/* ── Dedicated factory-photo band (full-width scrolling gallery) ── */
.s-factory {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.s-factory .factory-inner { padding: 30px var(--pad-x) 16px; }
.s-factory .factory-metrics { padding: 0 var(--pad-x) 26px; }
.s-factory .factory-eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
}
[data-lang="cn"] .s-factory .factory-eyebrow { font-family: var(--cn); letter-spacing: 0.1em; }
.s-factory .factory-reel {
  overflow: hidden; padding-bottom: 40px;
  -webkit-mask: linear-gradient(to right, transparent, #000 4%, #000 96%, transparent);
  mask: linear-gradient(to right, transparent, #000 4%, #000 96%, transparent);
}
.s-factory .factory-track {
  display: flex; width: max-content; padding-left: var(--pad-x);
  animation: factory-scroll 52s linear infinite;
}
.s-factory:hover .factory-track { animation-play-state: paused; }
@keyframes factory-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.s-factory .factory-shot {
  flex-shrink: 0; display: block;
  width: 440px; height: 280px; margin-right: 16px;
  border: 1px solid var(--line-2); background: var(--bg-3);
}
@media (prefers-reduced-motion: reduce) {
  .s-factory .factory-track { animation: none; }
}

/* ============================================================
   RESPONSIVE — 三端自适应(平板 / 手机)
   追加于文件末尾:只在小屏下覆盖,不改动原桌面设计。
   断点:1024(平板) · 900(导航折叠 / 主双列收起) · 600(手机单列)
   ============================================================ */

/* 解除桌面最小宽度,允许页面随屏宽收缩(响应式前提) */
@media (max-width: 1200px) {
  body { min-width: 0; }
}

/* 汉堡按钮:桌面隐藏,小屏显示 */
.nav-toggle {
  display: none;
  width: 40px; height: 40px; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  background: transparent; border: 1px solid var(--line-2); cursor: pointer;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px; background: var(--ink);
  transition: transform .25s ease, opacity .2s ease;
}
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 平板 ≤ 1024px ---------- */
@media (max-width: 1024px) {
  .side-rail { display: none; }
  .s-product .right { gap: 120px; }
  .s-product .step h3 { font-size: clamp(34px, 6vw, 56px); }
}

/* ---------- 笔记本中等宽度:压缩导航间距,避免 7 项菜单溢出 ---------- */
@media (min-width: 1201px) and (max-width: 1439px) {
  .nav .links { gap: 14px; margin-left: 24px; }
  .nav .links a, .nav .links a .en { font-size: 11px; }
}

/* ---------- 导航折叠为汉堡菜单 ≤ 1200px(覆盖所有平板,含横屏 1024) ---------- */
@media (max-width: 1200px) {
  .nav { padding: 0 24px; }
  .nav-toggle { display: flex; }
  .nav .links {
    display: none;
    position: fixed; top: 64px; left: 0; right: 0; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 0; flex: none;
    margin-left: 0; padding: 4px 24px 14px;
    background: rgba(255,255,255,0.98);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    max-height: calc(100vh - 64px); overflow-y: auto;
  }
  .nav.open .links { display: flex; }
  .nav .links a {
    width: 100%; padding: 15px 0; font-size: 13px;
    border-bottom: 1px solid var(--line);
  }
  .nav .links a:last-child { border-bottom: 0; }
  .nav .right { margin-left: auto; gap: 12px; }
}

/* ---------- 主要双列收起 ≤ 900px ---------- */
@media (max-width: 900px) {
  /* HERO 双列 → 单列 */
  .hero { height: auto; min-height: 0; padding-top: 96px; padding-bottom: 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; height: auto; }
  .hero .meta-row { display: none; }
  .hero-radar { max-width: 440px; margin: 0 auto; }

  /* PRODUCT 粘性双列 → 单列静态(蓝图置顶) */
  .s-product .sticky-track { grid-template-columns: 1fr; }
  .s-product .left {
    position: static; height: auto; padding: 40px 24px;
    border-right: 0; border-bottom: 1px solid var(--line);
  }
  .s-product .blueprint { max-width: 440px; }
  .s-product .right { padding: 56px 24px; gap: 56px; }
  .s-product .step { min-height: 0; }

  /* FAQ 双列 → 单列 */
  .s-faq .layout { grid-template-columns: 1fr; gap: 32px; }
  .s-faq .layout .left { position: static; }
  .s-faq .item .a > div { padding-left: 0; }

  /* CONTACT 双列 → 单列 */
  .s-contact .form-wrap { grid-template-columns: 1fr; gap: 36px; }
  .s-contact .info { position: static; }

  /* FOOTER 4列 → 2列(品牌占整行) */
  .footer .row { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer .brand { grid-column: 1 / -1; }
}

/* ---------- 手机 ≤ 600px ---------- */
@media (max-width: 600px) {
  :root { --pad-x: 20px; }
  .section { padding: 72px var(--pad-x); }

  .hero { padding-top: 88px; }
  .hero h1 { font-size: clamp(36px, 11vw, 54px); }
  .hero .lede { font-size: 13px; }
  .hero .cta-row { flex-direction: column; align-items: stretch; }
  .hero .cta-row a { justify-content: center; }
  .hero-radar { max-width: 280px; }

  .nav .right { gap: 8px; }
  .nav .cta { padding: 7px 11px; font-size: 10px; }
  .nav .lang button { padding: 5px 9px; }

  /* 页脚 → 单列 */
  .footer .row { grid-template-columns: 1fr; }
  .footer .brand { grid-column: auto; }

  /* 表单内部双列 → 单列 */
  .s-contact form .row { grid-template-columns: 1fr; }

  /* 规格表 5列:手机上列自适应收缩到屏内(min-width:0 解除内容最小宽),避免溢出 */
  .spec-table { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .spec-table .sp-row { min-width: 0; }
  .spec-table .sp-row > span { padding: 10px 8px; min-width: 0; word-break: break-word; }

  /* 大标题收一收:原 clamp 最小 56px 在手机上太大,长英文单词会撑破屏宽 */
  .section-title { font-size: clamp(30px, 8.5vw, 56px); }
  .cmp-title { font-size: clamp(32px, 9vw, 52px); }
  .s-product .step h3 { font-size: clamp(30px, 8vw, 48px); }
  /* 兜底:超长英文单词允许断行,避免溢出 */
  .section-title, .cmp-title, .hero h1, .s-product .step h3, h3 { overflow-wrap: break-word; }

  /* 公司区居中大 logo(720px)缩放到视口内,避免左右溢出 */
  .s-company .cmp-mark { width: 78vw; height: 78vw; max-width: 320px; max-height: 320px; }
  .s-company .cmp-center { max-width: 100%; }
  /* 公司区舞台去掉横向内边距,避免与 section 内边距叠加导致面板超宽 */
  .s-company .cmp-stage { padding-left: 0; padding-right: 0; }
}

/* ---------- 修正:覆盖被文件后面重复规则(约1419行)盖掉的响应式网格 ----------
   .s-cases .cases 在后面又被定义成 3 列且无媒体查询,盖掉了前面的响应式规则,
   导致手机端 3 列溢出。这里放文件末尾重新覆盖,优先级最高。 */
@media (max-width: 980px) {
  .s-cases .cases { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .s-cases .cases { grid-template-columns: 1fr; }
}

/* Contact 表单提交提示：屏幕上方居中浮层，中英两行，1.5s 淡出自动消失 */
.dbm-toast {
  position: fixed;
  top: 76px; left: 50%;          /* 紧贴导航栏(高 64px)下方 */
  z-index: 9999;
  max-width: min(88vw, 480px);
  padding: 16px 26px;
  text-align: center;
  color: var(--ink, #14181a);
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid var(--line, #d9ddd6);
  border-top: 3px solid var(--accent-2, #2ecc71);
  border-radius: 4px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  pointer-events: none;
  animation: dbmToast 1.5s ease forwards;
}
.dbm-toast.is-error { border-top-color: #e26d6d; }
.dbm-toast .t-en {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; line-height: 1.5;
}
.dbm-toast .t-cn {
  margin-top: 4px;
  font-family: var(--cn, inherit); font-size: 13px; line-height: 1.6;
  color: var(--ink-2, #5a6168);
}
@keyframes dbmToast {
  0%   { opacity: 0; transform: translate(-50%, -12px); }
  12%  { opacity: 1; transform: translate(-50%, 0); }
  80%  { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -8px); }
}