/* =====================================================================
   南京永浩科技 — 浅色朴实主题（白底为主）
   ===================================================================== */

:root {
  --bg: #ffffff;
  --bg-2: #f4f7fb;
  --bg-3: #eaeff6;
  --ink: #131c27;
  --ink-2: #415063;
  --muted: #5c6b7e;
  --faint: #8a9aae;
  --line: rgba(16, 24, 40, 0.10);
  --line-2: rgba(16, 24, 40, 0.18);
  --cyan: #0fb89c;
  --cyan-dim: rgba(15, 184, 156, 0.12);
  --blue: #2f5fff;
  --blue-dim: rgba(47, 95, 255, 0.10);
  --amber: #ef9f3e;
  --danger: #d64545;

  --shell: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --nav-h: 72px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

::selection { background: rgba(15, 184, 156, 0.22); color: #05322a; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px; left: 10px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #022;
  font-weight: 600;
  border-radius: 8px;
  transform: translateY(-200%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* Lenis (the single smooth-scroll engine) */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* ---------- background layers ---------- */
.bg-stack {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* poster — simple, near-white; carries the look */
.bg-poster {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 50% 120%, rgba(15, 184, 156, 0.05) 0%, rgba(15, 184, 156, 0) 55%),
    radial-gradient(90% 70% at 82% 6%, rgba(47, 95, 255, 0.05) 0%, rgba(47, 95, 255, 0) 60%),
    linear-gradient(180deg, #ffffff 0%, #f6f9fd 55%, #ffffff 100%);
}

/* faint grid, only on the deep-space / grid theme */
.bg-mesh {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 90% at 50% 100%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 100%, #000 0%, transparent 70%);
}

.bg-vignette { display: none; }

.bg-grain {
  position: absolute;
  inset: -50%;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* aurora blobs are off in the light theme */
.bg-aurora { display: none; }
[data-bg="light"] .bg-mesh,
[data-bg="light"] #bg-canvas { display: none; }

#bg-canvas { display: none; }

.pointer-glow { display: none; }

/* ---------- shell ---------- */
.page { position: relative; z-index: 2; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section { position: relative; }

/* light section bands for gentle separation */
.veil { background: var(--bg-2); }

.section-pad { padding: clamp(72px, 10vw, 140px) 0; }

.rule {
  height: 1px;
  background: linear-gradient(to right, var(--line-2), rgba(16, 24, 40, 0.02));
  transform-origin: left center;
}

/* ---------- typography ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 20px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.eyebrow-inner { display: inline-block; }
.hero-eyebrow { overflow: hidden; padding-bottom: 2px; }

.h2 {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 18px;
  color: var(--ink);
}

.lede {
  font-size: clamp(15px, 1.5vw, 17px);
  color: var(--ink-2);
  max-width: 62ch;
  margin: 0;
}

.mono-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--faint);
  text-transform: uppercase;
}

/* masked word reveal */
.word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-bottom: 0.06em;
}
.word__inner { display: inline-block; will-change: transform; }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}

.nav-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}
.brand-mark {
  width: 34px; height: 34px;
  display: block;
  flex: 0 0 auto;
  object-fit: contain;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-cn { font-weight: 700; font-size: 16px; letter-spacing: 0.02em; color: var(--ink); }
.brand-en { font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em; color: var(--faint); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-menu a {
  position: relative;
  font-size: 14px;
  color: var(--ink-2);
  padding: 6px 0;
  transition: color 0.25s var(--ease);
}
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}
.nav-menu a:hover { color: var(--ink); }
.nav-menu a:hover::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: rgba(16, 24, 40, 0.03);
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 12px;
  width: 18px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 25px; }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  --btn-bg: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--btn-bg);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s;
  white-space: nowrap;
}
.btn-primary {
  --btn-bg: linear-gradient(120deg, #2fe0c0, #35c8ff);
  color: #04221d;
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(15, 184, 156, 0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(15, 184, 156, 0.3);
}
.btn-ghost { color: var(--ink); background: rgba(16, 24, 40, 0.03); border-color: var(--line-2); }
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 184, 156, 0.5);
  background: rgba(15, 184, 156, 0.08);
}
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
}
.hero-inner { width: 100%; }

.hero-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 24, 40, 0.03);
  font-size: 12px;
  color: var(--ink-2);
}
.badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.hero-title {
  font-size: clamp(38px, 7.4vw, 92px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  font-weight: 800;
  margin: 0 0 26px;
  max-width: 16em;
  color: var(--ink);
}
.hero-title .accent {
  background: linear-gradient(100deg, #0fb89c 0%, #2f5fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(15px, 1.7vw, 19px);
  color: var(--ink-2);
  max-width: 58ch;
  margin: 0 0 38px;
}
.hero-sub strong { color: var(--ink); font-weight: 600; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.stat {
  background: #ffffff;
  padding: 22px 20px;
}
.stat-num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.1;
}
.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--muted);
}

.scroll-cue {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 44px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--faint);
  text-transform: uppercase;
}
.scroll-cue .bar {
  position: relative;
  width: 60px; height: 1px;
  background: var(--line-2);
  overflow: hidden;
}
.scroll-cue .bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--cyan);
  transform: translateX(-100%);
  animation: cue 2.4s var(--ease) infinite;
}
@keyframes cue {
  0% { transform: translateX(-100%); }
  60%, 100% { transform: translateX(100%); }
}

/* ---------- section head ---------- */
.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  margin-bottom: clamp(40px, 6vw, 72px);
}
.sec-head .rule { margin-top: 26px; }

/* ---------- product matrix ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}
.pcard {
  position: relative;
  grid-column: span 2;
  padding: 30px 28px 32px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s;
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transform-style: preserve-3d;
}
.pcard::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(15, 184, 156, 0.12), transparent 62%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.pcard:hover {
  border-color: rgba(15, 184, 156, 0.4);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 22px 46px rgba(16, 24, 40, 0.09);
}
.pcard:hover::before { opacity: 1; }
.pcard--wide { grid-column: span 3; }
.pcard--feature {
  grid-column: span 6;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding: 38px;
}

.pcard-index {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--faint);
  margin-bottom: 16px;
}
.pcard h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink);
}
.pcard .en {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.pcard p { color: var(--ink-2); font-size: 14.5px; margin: 0 0 18px; }
.pcard ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.pcard li {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  color: var(--muted);
}
.pcard li::before {
  content: "";
  flex: 0 0 auto;
  width: 5px; height: 5px;
  margin-top: 9px;
  border-radius: 1px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.pcard--feature h3 { font-size: clamp(22px, 2.6vw, 30px); }

.metric-row { display: flex; gap: 28px; margin-top: 22px; flex-wrap: wrap; }
.metric-row div { min-width: 92px; }
.metric-row b {
  display: block;
  font-family: var(--mono);
  font-size: 24px;
  color: var(--cyan);
  line-height: 1.1;
}
.metric-row span { font-size: 12px; color: var(--muted); }

/* ---------- engine ---------- */
.engine-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.engine-sticky {
  position: sticky;
  top: calc(var(--nav-h) + 40px);
}
.engine-figure {
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    radial-gradient(120% 100% at 30% 0%, rgba(15, 184, 156, 0.05), transparent 60%),
    #ffffff;
  padding: 26px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
}
.engine-figure svg { width: 100%; height: auto; }
.graph-node { opacity: 0.42; transform-box: fill-box; transform-origin: center; transition: opacity 0.4s var(--ease); }
.flow-line {
  stroke-dasharray: 6 10;
  animation: flow 1.6s linear infinite;
}
@keyframes flow { to { stroke-dashoffset: -32; } }

.engine-steps { display: grid; gap: 8px; }
.engine-step {
  padding: 24px 0;
  border-top: 1px solid var(--line);
  opacity: 0.42;
  transition: opacity 0.45s var(--ease);
}
.engine-step:last-child { border-bottom: 1px solid var(--line); }
.engine-step.is-active { opacity: 1; }
.engine-step h3 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: clamp(19px, 2.2vw, 24px);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.engine-step .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.1em;
}
.engine-step p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.engine-step .tagline {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 10px;
}

/* ---------- metrics band ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metric {
  background: var(--bg-2);
  padding: clamp(26px, 4vw, 44px) clamp(18px, 2.4vw, 30px);
}
.metric b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(30px, 4.4vw, 54px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(120deg, #0fb89c, #2f5fff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.metric span { display: block; margin-top: 12px; font-size: 13.5px; color: var(--muted); }

/* ---------- industries ---------- */
.ind-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.ind-tab {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(16, 24, 40, 0.03);
  font-size: 14px;
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.28s var(--ease);
}
.ind-tab:hover { border-color: var(--line-2); color: var(--ink); }
.ind-tab.is-active {
  border-color: rgba(15, 184, 156, 0.5);
  background: rgba(15, 184, 156, 0.08);
  color: var(--ink);
}
.ind-panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: clamp(24px, 3.4vw, 40px);
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
}
.ind-panel h3 { margin: 0 0 10px; font-size: clamp(19px, 2.2vw, 24px); color: var(--ink); }
.ind-panel p { margin: 0 0 22px; color: var(--ink-2); }
.ind-kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border-radius: 12px; overflow: hidden; }
.ind-kpis div { background: #ffffff; padding: 18px 16px; }
.ind-kpis b { display: block; font-family: var(--mono); font-size: 22px; color: var(--cyan); }
.ind-kpis span { font-size: 12.5px; color: var(--muted); }

/* ---------- voices ---------- */
.voice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.voice {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 26px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.voice blockquote { margin: 0; font-size: 15px; color: var(--ink-2); line-height: 1.75; }
.voice .who { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(140deg, #2fe0c0, #4c7dff);
  flex: 0 0 auto;
}
.voice .who b { display: block; font-size: 14px; font-weight: 600; color: var(--ink); }
.voice .who span { font-size: 12.5px; color: var(--muted); }
.disclaimer {
  margin-top: 22px;
  font-size: 12px;
  color: var(--faint);
}

/* ---------- process ---------- */
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: p; }
.process-item {
  position: relative;
  padding: 26px 22px 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
}
.process-item .step-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 14px;
}
.process-item h3 { margin: 0 0 8px; font-size: 17px; color: var(--ink); }
.process-item p { margin: 0; font-size: 13.5px; color: var(--muted); }

/* ---------- CTA ---------- */
.cta-panel {
  position: relative;
  border: 1px solid var(--line-2);
  border-radius: 22px;
  padding: clamp(30px, 4.6vw, 60px);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(47, 95, 255, 0.06), transparent 62%),
    radial-gradient(80% 120% at 0% 100%, rgba(15, 184, 156, 0.06), transparent 60%),
    #ffffff;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 24px 60px rgba(16, 24, 40, 0.08);
}
.cta-panel h2 {
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--ink);
}
.cta-panel p { margin: 0 0 24px; color: var(--ink-2); }
.cta-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.cta-list li { display: flex; gap: 10px; font-size: 14px; color: var(--ink-2); }
.cta-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 16px; height: 16px;
  margin-top: 5px;
  border-radius: 50%;
  border: 1px solid rgba(15, 184, 156, 0.45);
  background: rgba(15, 184, 156, 0.12);
}

/* ---------- form ---------- */
.lead-form {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 14px 34px rgba(16, 24, 40, 0.05);
}
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: rgba(16, 24, 40, 0.02);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.25s var(--ease), background 0.25s;
}
.field textarea { resize: vertical; min-height: 84px; }
.field input::placeholder, .field textarea::placeholder { color: var(--faint); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: rgba(15, 184, 156, 0.6);
  background: rgba(15, 184, 156, 0.05);
}
.field input.is-invalid { border-color: var(--danger); background: rgba(214, 69, 69, 0.06); }
.field-error { display: block; min-height: 16px; margin-top: 6px; font-size: 12px; color: #e07070; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* 行业选中态：黑底白字 */
.field select.is-filled {
  background-color: #0c0c0e !important;
  color: #ffffff !important;
  border-color: #0c0c0e !important;
}
.field select.is-filled option { background: #ffffff; color: var(--ink); }
.field select.is-filled option:checked { background: #0c0c0e; color: #ffffff; }

.form-submit {
  width: 100%;
  margin-top: 6px;
  padding: 14px 20px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(120deg, #2fe0c0, #35c8ff);
  color: #04221d;
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s, opacity 0.2s;
  box-shadow: 0 8px 28px rgba(15, 184, 156, 0.2);
}
.form-submit:hover { transform: translateY(-2px); }
.form-submit:disabled { opacity: 0.6; cursor: progress; transform: none; }
.form-status { min-height: 20px; margin-top: 12px; font-size: 13px; color: var(--muted); }
.form-status.is-ok { color: var(--cyan); }
.form-status.is-error { color: #e07070; }
.form-note { margin-top: 14px; font-size: 12px; color: var(--faint); }

/* ---------- footer ---------- */
.footer {
  position: relative;
  z-index: 2; /* 高于固定背景层 .bg-stack(z-index:0)，否则整块页脚会被盖住显示成空白 */
  border-top: 1px solid var(--line);
  padding: 56px 0 34px;
  background: var(--bg-2);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}
.footer h4 { margin: 0 0 14px; font-size: 13px; letter-spacing: 0.06em; color: var(--ink); }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer li, .footer p { font-size: 13.5px; color: var(--muted); margin: 0; }
.footer a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 12.5px;
  color: var(--faint);
}
.footer .brand { margin-bottom: 16px; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
  .pcard { grid-column: span 2; }
  .pcard--wide { grid-column: span 2; }
  .pcard--feature { grid-column: span 4; grid-template-columns: 1fr; }
  .engine-layout { grid-template-columns: 1fr; }
  .engine-sticky { position: static; }
  .cta-panel { grid-template-columns: 1fr; }
  .voice-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-menu {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 22px var(--gutter) 30px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav-menu.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-menu a { font-size: 16px; padding: 12px 0; width: 100%; color: var(--ink); }
  .nav-toggle { display: block; }
  .nav-actions .btn { display: none; }
  .sec-head { grid-template-columns: 1fr; align-items: start; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .ind-kpis { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .product-grid { grid-template-columns: 1fr; }
  .pcard, .pcard--wide, .pcard--feature { grid-column: span 1; }
  .voice-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 24px); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .word__inner { transform: none !important; opacity: 1 !important; }
}

/* =====================================================================
   集团官网式全屏 Hero（参考 alibaba.com）
   ===================================================================== */
.hero-cinema {
  position: relative;
  overflow: hidden;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding-bottom: 90px;
}
.hero-cinema .hero-inner { position: relative; z-index: 1; }

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.12);
  transform-origin: center 35%;
}
.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(6, 11, 20, 0.78) 0%,
      rgba(6, 11, 20, 0.42) 38%,
      rgba(6, 11, 20, 0.38) 62%,
      rgba(6, 11, 20, 0.82) 100%);
}

.hero-cinema .hero-eyebrow { color: rgba(255, 255, 255, 0.78); }

.hero-cinema .hero-title {
  color: #fff;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-wrap: balance;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.45);
}

.hero-sub-en {
  font-family: var(--mono);
  font-size: clamp(11px, 1.3vw, 14px);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
  margin: 6px 0 30px;
}

.hero-desc {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
  max-width: 62ch;
  margin: 0 auto 40px;
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.4);
}

.hero-cinema .hero-actions { justify-content: center; margin-bottom: 52px; }

.hero-cinema .btn-ghost-light {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hero-cinema .btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.7);
}

.hero-cinema .hero-stats {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  max-width: 980px;
  margin: 0 auto;
}
.hero-cinema .stat { background: rgba(255, 255, 255, 0.05); }
.hero-cinema .stat-num { color: #fff; }
.hero-cinema .stat-label { color: rgba(255, 255, 255, 0.72); }

.hero-cinema .scroll-cue {
  color: rgba(255, 255, 255, 0.65);
  justify-content: center;
}
.hero-cinema .scroll-cue .bar { background: rgba(255, 255, 255, 0.3); }

/* 顶部导航压在深色 Hero 上的白字态 */
.nav:not(.is-scrolled) .brand-cn { color: #fff; }
.nav:not(.is-scrolled) .brand-en { color: rgba(255, 255, 255, 0.6); }
.nav:not(.is-scrolled) .nav-menu a { color: rgba(255, 255, 255, 0.85); }
.nav:not(.is-scrolled) .nav-menu a:hover { color: #fff; }
.nav:not(.is-scrolled) .nav-toggle {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.1);
}
.nav:not(.is-scrolled) .nav-toggle span { background: #fff; }

@media (max-width: 620px) {
  .hero-cinema .hero-title { font-size: clamp(30px, 8.6vw, 44px); }
  .hero-sub-en { letter-spacing: 0.18em; }
}

/* =====================================================================
   多页面结构：单屏首页 + 子页面
   ===================================================================== */

/* ---------- 单屏首页 ---------- */
.page-home .hero-cinema {
  min-height: 100svh;
  padding-top: 96px;
  padding-bottom: 34px;
}
.page-home .hero-title { font-size: clamp(30px, 4.6vw, 58px); }
.page-home .hero-sub-en { margin-bottom: 16px; }
.page-home .hero-desc {
  font-size: clamp(14px, 1.4vw, 16.5px);
  margin-bottom: 26px;
}
.page-home .hero-eyebrow { margin-bottom: 10px; }

.hero-entries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
}
.entry-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  text-align: left;
  text-decoration: none;
  transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.entry-card:hover,
.entry-card:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-4px);
}
.entry-card .ec-num {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.6);
}
.entry-card .ec-title { font-weight: 700; font-size: 16.5px; }
.entry-card .ec-desc {
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.74);
}
.entry-card .ec-go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: #7ff3e0;
}

@media (max-width: 960px) {
  .hero-entries { grid-template-columns: repeat(2, 1fr); }
  .page-home .hero-cinema { min-height: auto; }
}
@media (max-width: 560px) {
  .hero-entries { grid-template-columns: 1fr 1fr; gap: 10px; }
  .entry-card .ec-desc { display: none; }
}

/* ---------- 全屏 AI 进化视频背景 ---------- */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transform-origin: center;
  z-index: 0;
}
/* 视频未就绪（不支持 / 加载失败）时回退到静态海报图 */
.hero-bg.is-poster .hero-video { display: none; }
.hero-bg.is-poster::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/img/hero-bg.png") center / cover no-repeat;
  transform: scale(1.12);
  transform-origin: center 35%;
}

/* hero 底部滚动提示：绝对定位在视频下方正中 */
.hero-cinema .scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  margin: 0;
  z-index: 2;
  flex-direction: column;
  gap: 10px;
  color: rgba(255, 255, 255, 0.8);
}
.hero-cinema .scroll-cue .bar {
  width: 1px;
  height: 44px;
  background: rgba(255, 255, 255, 0.32);
}
.hero-cinema .scroll-cue .bar::after { background: #7ff3e0; }

/* ---------- 入口区：位于视频下方，浅色 + AI 元素装饰 ---------- */
.entry-section {
  background: var(--bg-2);
  padding: 88px 0 92px;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

/* AI 装饰层：神经网络节点 + 光斑 */
.entry-deco { position: absolute; inset: 0; pointer-events: none; }
.entry-net {
  position: absolute;
  right: -70px;
  top: 20px;
  width: 540px;
  height: auto;
  opacity: 0.75;
}
.net-links path { stroke-dasharray: 4 7; }
.net-nodes circle {
  transform-box: fill-box;
  transform-origin: center;
  animation: nodePulse 3.4s ease-in-out infinite;
}
.net-nodes .n2 { animation-delay: 0.5s; }
.net-nodes .n3 { animation-delay: 1s; }
.net-nodes .n4 { animation-delay: 1.5s; }
.net-nodes .n5 { animation-delay: 2s; }
.net-nodes .n6 { animation-delay: 2.5s; }
@keyframes nodePulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}
.entry-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
}
.entry-orb.o1 { width: 360px; height: 360px; left: -140px; bottom: -160px; background: rgba(15, 184, 156, 0.13); }
.entry-orb.o2 { width: 300px; height: 300px; right: 6%; bottom: -170px; background: rgba(47, 95, 255, 0.10); }

.entry-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 44px;
  position: relative;
  z-index: 1;
}
.entry-head .kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  margin: 0 0 12px;
}
.entry-head h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.01em;
}

/* AI 能力标签（呼吸光点） */
.ai-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 22px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-2);
  box-shadow: 0 4px 14px rgba(16, 32, 48, 0.05);
}
.chip i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: chipPulse 2.4s ease-out infinite;
}
@keyframes chipPulse {
  0% { box-shadow: 0 0 0 0 rgba(15, 184, 156, 0.45); }
  70% { box-shadow: 0 0 0 7px rgba(15, 184, 156, 0); }
  100% { box-shadow: 0 0 0 0 rgba(15, 184, 156, 0); }
}

/* 浅色背景下的入口卡片（白卡 + 渐变图标） */
.entry-section .entry-card {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 20px 18px 16px;
  box-shadow: 0 10px 30px rgba(16, 32, 48, 0.06);
}
.entry-card .ec-icon {
  width: 40px; height: 40px;
  border-radius: 11px;
  background: linear-gradient(140deg, rgba(15, 184, 156, 0.14), rgba(47, 95, 255, 0.12));
  color: #0c8f7a;
  display: grid;
  place-items: center;
  margin-bottom: 12px;
  transition: transform 0.3s var(--ease);
}
.entry-card .ec-icon svg { width: 21px; height: 21px; }
.entry-section .entry-card:hover .ec-icon { transform: translateY(-3px) scale(1.08); }
.entry-section .entry-card:hover,
.entry-section .entry-card:focus-visible {
  background: #fff;
  border-color: var(--cyan);
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(16, 32, 48, 0.12);
}
.entry-section .entry-card .ec-num { color: var(--faint); }
.entry-section .entry-card .ec-desc { color: var(--muted); }
.entry-section .entry-card .ec-go { color: #0c8f7a; }

/* 全宽 CONTACT 横幅 */
.entry-cta {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 1120px;
  margin: 16px auto 0;
  padding: 22px 28px;
  border-radius: 16px;
  background:
    radial-gradient(120% 200% at 100% 0%, rgba(47, 95, 255, 0.35) 0%, rgba(47, 95, 255, 0) 55%),
    linear-gradient(115deg, #0e1f33 0%, #0d3a46 100%);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 14px 34px rgba(13, 42, 64, 0.28);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.entry-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 44px rgba(13, 42, 64, 0.36);
}
.entry-cta .cta-num {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.6);
}
.entry-cta .cta-body { display: flex; flex-direction: column; gap: 4px; }
.entry-cta .cta-body b { font-size: 17.5px; letter-spacing: 0.01em; }
.entry-cta .cta-body span { font-size: 13px; color: rgba(255, 255, 255, 0.72); }
.entry-cta .ec-go {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 13px;
  color: #7ff3e0;
}

@media (max-width: 960px) {
  .entry-section { padding: 64px 0 68px; }
  .entry-net { width: 380px; right: -90px; opacity: 0.5; }
}
@media (max-width: 560px) {
  .entry-cta { flex-wrap: wrap; gap: 10px; padding: 18px 20px; }
  .entry-cta .ec-go { margin-left: 0; }
}

/* ---------- 子页头图 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  text-align: center;
  padding: 150px 0 62px;
}
.page-hero .ph-bg { position: absolute; inset: 0; z-index: 0; }
.page-hero .ph-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}
.page-hero .ph-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(6, 11, 20, 0.72) 0%,
    rgba(6, 11, 20, 0.82) 60%,
    rgba(6, 11, 20, 0.94) 100%);
}
.page-hero .shell { position: relative; z-index: 1; }
.page-hero .eyebrow { color: rgba(255, 255, 255, 0.75); margin-bottom: 12px; }
.page-hero .eyebrow-inner { color: rgba(255, 255, 255, 0.85); }
.page-hero h1 {
  color: #fff;
  font-size: clamp(28px, 4.2vw, 46px);
  letter-spacing: 0.01em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.45);
}
.page-hero .ph-desc {
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(14px, 1.5vw, 16.5px);
  line-height: 1.9;
  max-width: 68ch;
  margin: 14px auto 0;
}

/* ---------- 导航当前页高亮 ---------- */
.nav-menu a.is-current { color: var(--ink); }
.nav-menu a.is-current::after { transform: scaleX(1); }
.nav:not(.is-scrolled) .nav-menu a.is-current { color: #fff; }

/* ---------- 公司介绍 ---------- */
.company-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.company-item {
  background: #fff;
  border: 1px solid rgba(16, 24, 40, 0.1);
  border-radius: 16px;
  padding: 26px 24px;
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.06);
}
.company-item h3 { font-size: 18px; margin-bottom: 14px; }
.company-item ul { display: grid; gap: 10px; }
.company-item li { font-size: 14.5px; line-height: 1.7; color: var(--muted); }
@media (max-width: 860px) { .company-grid { grid-template-columns: 1fr; } }

/* ---------- 产品卡真实截图 ---------- */
.pcard-shot.is-photo {
  padding: 0;
  background: #0d1520;
  overflow: hidden;
  cursor: zoom-in;
  aspect-ratio: 16 / 9;
}
.pcard-shot.is-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}
.pcard-shot.is-photo:hover img { transform: scale(1.03); }
.pcard--feature .pcard-shot.is-photo { aspect-ratio: auto; min-height: 260px; }

.shot-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  aspect-ratio: auto !important;
}
.shot-duo figure {
  margin: 0;
  overflow: hidden;
  cursor: zoom-in;
  aspect-ratio: 9 / 17;
}
.shot-duo figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}
.shot-duo figure:hover img { transform: scale(1.04); }
@media (max-width: 620px) { .shot-duo { grid-template-columns: 1fr; } .shot-duo figure { aspect-ratio: 4 / 3; } }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4vmin;
  background: rgba(7, 11, 19, 0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox.is-open { display: flex; }
.lightbox img {
  max-width: min(1280px, 94vw);
  max-height: 86vh;
  border-radius: 10px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
  background: #0d1520;
}
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.24); }
.lightbox-cap {
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13.5px;
  letter-spacing: 0.04em;
}

/* 线索通道不可用时的兜底提示条 */
#lead-net-fallback {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  z-index: 999; max-width: min(420px, calc(100vw - 32px));
}
#lead-net-fallback .lnf-inner {
  position: relative; background: #ffffff; color: #1a1a1a;
  border: 1px solid rgba(0,0,0,.12); border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0,0,0,.16); padding: 16px 40px 16px 18px;
  font-size: 13.5px; line-height: 1.7;
}
#lead-net-fallback b { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }
#lead-net-fallback p { margin: 0; color: #555; }
#lead-net-fallback .lnf-cta { margin-top: 6px; display: flex; gap: 14px; flex-wrap: wrap; }
#lead-net-fallback a { color: #0f6e56; font-weight: 600; text-decoration: none; }
#lead-net-fallback a:hover { text-decoration: underline; }
#lead-net-fallback button {
  position: absolute; top: 8px; right: 10px; border: 0; background: transparent;
  font-size: 20px; line-height: 1; color: #888; cursor: pointer; padding: 2px 6px;
}