:root {
  color-scheme: light;
  --night: #070b12;
  --night-soft: #111824;
  --ink: #11151d;
  --muted: #626b7d;
  --paper: #f6f8fb;
  --panel: #ffffff;
  --line: rgba(18, 24, 34, 0.12);
  --line-strong: rgba(18, 24, 34, 0.2);
  --blue: #407dfc;
  --cyan: #3dd8ff;
  --violet: #965cfe;
  --green: #62d6ad;
  --gold: #d9b66e;
  --radius: 18px;
  --max: 1180px;
  --shadow: 0 28px 90px rgba(15, 26, 44, 0.16);
  --soft-shadow: 0 18px 50px rgba(15, 26, 44, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: clip;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure { margin: 0; }
button, input, textarea, select { font: inherit; }
main section[id] { scroll-margin-top: 92px; }

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(7, 11, 18, 0.72);
  backdrop-filter: blur(20px);
}
.topbar-inner,
.hero-grid,
.proof-band,
.section,
.service-inner,
.site-footer {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
}
.topbar-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand,
.topbar-actions,
.nav,
.lang-switch,
.actions,
.hero-terms,
.tag-row {
  display: flex;
  align-items: center;
}
.brand {
  gap: 11px;
  color: #fff;
  font-weight: 820;
  letter-spacing: -0.02em;
}
.brand-orb {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  overflow: hidden;
  background: #101722;
  box-shadow: 0 0 34px rgba(61, 216, 255, 0.28);
}
.brand-orb img { width: 100%; height: 100%; object-fit: cover; }
.topbar-actions { gap: 16px; }
.nav { gap: 20px; color: rgba(255, 255, 255, 0.72); font-size: 14px; }
.nav a { transition: color 160ms ease; }
.nav a:hover { color: #fff; }
.lang-switch {
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}
.lang-button {
  appearance: none;
  border: 0;
  min-width: 38px;
  height: 30px;
  border-radius: 999px;
  cursor: pointer;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}
.lang-button.is-active {
  color: #06111c;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
}

.hero {
  position: relative;
  min-height: 88vh;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 77% 22%, rgba(64, 125, 252, 0.22), transparent 24%),
    radial-gradient(circle at 58% 60%, rgba(150, 92, 254, 0.16), transparent 34%),
    linear-gradient(135deg, #070b12 0%, #0e1521 52%, #07121a 100%);
}
.hero-atmosphere {
  position: absolute;
  inset: 0;
  opacity: 0.64;
  background:
    linear-gradient(90deg, rgba(7, 11, 18, 0.94) 0%, rgba(7, 11, 18, 0.7) 45%, rgba(7, 11, 18, 0.42) 100%),
    linear-gradient(180deg, rgba(7, 11, 18, 0.1), rgba(7, 11, 18, 0.86)),
    url("assets/batchh-hero-atmosphere.webp") center right / cover no-repeat;
  transform: scale(1.04);
  animation: atmosphereDrift 18s ease-in-out infinite alternate;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 76%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  min-height: 88vh;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(460px, 1.14fr);
  gap: clamp(36px, 5vw, 70px);
  align-items: center;
  padding: 128px 0 74px;
}
.eyebrow {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 860;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-copy h1 {
  max-width: 620px;
  margin-top: 22px;
  font-size: clamp(52px, 6vw, 76px);
  line-height: 0.94;
  letter-spacing: -0.065em;
}
.hero-lead {
  max-width: 620px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(24px, 2.5vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.035em;
}
.hero-boundary {
  max-width: 560px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 17px;
}
.actions { flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-weight: 840;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}
.button.primary {
  border: 0;
  color: #06111c;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 18px 44px rgba(61, 216, 255, 0.28);
}
.button.secondary { color: #fff; background: rgba(255, 255, 255, 0.08); }
.button:hover { transform: translateY(-2px); }
.text-link { color: rgba(255, 255, 255, 0.78); font-weight: 820; }
.text-link:hover { color: #fff; }
.hero-terms { flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.hero-terms span,
.tag-row span {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(255, 255, 255, 0.075);
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 760;
}
.device-stage {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}
.stage-halo {
  position: absolute;
  width: 86%;
  aspect-ratio: 1;
  border-radius: 999px;
  background:
    radial-gradient(circle, rgba(61, 216, 255, 0.2), transparent 52%),
    radial-gradient(circle at 70% 30%, rgba(150, 92, 254, 0.18), transparent 42%);
  filter: blur(10px);
  animation: haloPulse 8s ease-in-out infinite alternate;
}
.device-shell,
.proof-screen {
  position: relative;
  z-index: 1;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  overflow: hidden;
}
.device-shell { transform: perspective(1100px) rotateY(-7deg) rotateX(3deg); }
.device-top,
.screen-top {
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  background: rgba(7, 11, 18, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.device-top span,
.screen-top span { width: 10px; height: 10px; border-radius: 999px; background: rgba(255, 255, 255, 0.38); }
.device-top span:first-child,
.screen-top span:first-child { background: var(--gold); }
.device-top span:nth-child(2),
.screen-top span:nth-child(2) { background: var(--green); }
.device-screen { padding: 12px; }
.device-screen img,
.proof-screen img { width: 100%; border-radius: 18px; background: #eaf0f6; }
.stage-card {
  position: absolute;
  z-index: 3;
  display: grid;
  gap: 2px;
  min-width: 142px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  background: rgba(8, 13, 21, 0.72);
  color: rgba(255, 255, 255, 0.78);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(16px);
}
.stage-card b { color: #fff; font-size: 19px; }
.stage-card span { font-size: 12px; }
.stage-card-left { left: -10px; bottom: 82px; }
.stage-card-right { right: -10px; top: 112px; }

.proof-band {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(190px, 0.8fr) repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: -40px;
  border: 1px solid rgba(18, 24, 34, 0.1);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(18, 24, 34, 0.1);
  box-shadow: var(--shadow);
}
.proof-intro,
.proof-item { background: rgba(255, 255, 255, 0.96); padding: 24px; }
.proof-intro { display: grid; align-items: center; background: #fbfcff; }
.proof-item span { color: var(--blue); font-size: 12px; font-weight: 880; }
.proof-item b { font: inherit; }
.proof-item h2 { margin-top: 12px; font-size: 22px; line-height: 1.12; letter-spacing: -0.025em; }
.proof-item p { margin-top: 10px; color: var(--muted); font-size: 15px; }

.section { padding: 106px 0; }
.split-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 42px;
  align-items: center;
}
.section-copy h2,
.section-head h2,
.service h2,
.consult h2 {
  margin-top: 14px;
  font-size: clamp(36px, 4.8vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.055em;
}
.section-copy p:not(.eyebrow),
.section-head p:not(.eyebrow),
.service .section-head p:not(.eyebrow),
.consult-copy p:not(.eyebrow) {
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
}
.tag-row { flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.tag-row span { border-color: var(--line); background: #fff; color: var(--blue); }
.proof-screen {
  border-color: var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}
.proof-screen .screen-top { background: #111824; }
.proof-screen img { border-radius: 0; }

.workflow { background: linear-gradient(180deg, #f6f8fb 0%, #eef3f8 100%); width: 100%; max-width: none; padding-left: max(22px, calc((100% - var(--max)) / 2)); padding-right: max(22px, calc((100% - var(--max)) / 2)); }
.section-head { max-width: 760px; margin-bottom: 38px; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.step-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--soft-shadow);
  overflow: hidden;
}
.step-card figure { aspect-ratio: 1.38; overflow: hidden; background: #eaf0f6; }
.step-card img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.step-card div { padding: 22px; }
.step-card span { color: var(--gold); font-size: 12px; font-weight: 880; text-transform: uppercase; }
.step-card h3 { margin-top: 10px; font-size: 25px; line-height: 1.14; letter-spacing: -0.035em; }
.step-card p { margin-top: 10px; color: var(--muted); }

.service {
  background:
    radial-gradient(circle at 18% 20%, rgba(61, 216, 255, 0.16), transparent 28%),
    radial-gradient(circle at 82% 48%, rgba(150, 92, 254, 0.16), transparent 28%),
    var(--night);
  color: #fff;
}
.service-inner { padding: 104px 0; }
.inverted p:not(.eyebrow) { color: rgba(255, 255, 255, 0.66) !important; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.service-grid article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
}
.service-grid span { color: var(--cyan); font-weight: 900; }
.service-grid h3 { margin-top: 28px; font-size: 26px; letter-spacing: -0.035em; }
.service-grid p { margin-top: 10px; color: rgba(255, 255, 255, 0.66); }
.scope-note {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.74);
}

.consult {
  background:
    radial-gradient(circle at 12% 12%, rgba(64, 125, 252, 0.12), transparent 34%),
    radial-gradient(circle at 88% 22%, rgba(61, 216, 255, 0.12), transparent 30%),
    #f7f8fb;
}
.consult-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(380px, 1fr);
  gap: 26px;
  align-items: stretch;
}
.consult-copy,
.lead-form {
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.consult-copy {
  position: relative;
  overflow: hidden;
  padding: 34px;
  background:
    linear-gradient(140deg, rgba(7, 11, 18, 0.94), rgba(17, 24, 36, 0.96)),
    url("assets/batchh-hero-atmosphere.webp") center / cover no-repeat;
  color: #fff;
}
.consult-copy p:not(.eyebrow), .consult-points { color: rgba(255, 255, 255, 0.72); }
.consult-points { display: grid; gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.consult-points li { padding: 13px 14px; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 16px; background: rgba(255, 255, 255, 0.07); }
.lead-form { padding: 28px; background: rgba(255, 255, 255, 0.94); }
.field-grid { display: grid; gap: 16px; }
.lead-form label { display: grid; gap: 8px; color: var(--ink); font-weight: 800; }
.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  border: 1px solid rgba(18, 24, 34, 0.16);
  border-radius: 15px;
  background: #fff;
  color: var(--ink);
  outline: 0;
}
.lead-form input,
.lead-form select { height: 48px; padding: 0 14px; }
.lead-form textarea { min-height: 112px; padding: 12px 14px; resize: vertical; }
.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus { border-color: rgba(64, 125, 252, 0.76); box-shadow: 0 0 0 4px rgba(64, 125, 252, 0.12); }
.lead-form .is-invalid { border-color: #d43f3a; box-shadow: 0 0 0 4px rgba(212, 63, 58, 0.1); }
.consent { grid-template-columns: 18px minmax(0, 1fr); align-items: start; gap: 10px !important; margin-top: 18px; color: var(--muted) !important; font-size: 14px; font-weight: 500 !important; }
.consent input { width: 18px; height: 18px; margin: 3px 0 0; }
.form-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 24px; }
.mail-fallback { color: var(--blue); font-weight: 820; }
.form-note { margin-top: 14px; color: var(--muted); font-size: 14px; }
.lead-status { margin-top: 18px; padding: 16px; border-radius: 18px; border: 1px solid rgba(18, 24, 34, 0.12); background: #f8fafc; color: var(--ink); }
.lead-status.is-error { border-color: rgba(212, 63, 58, 0.28); background: #fff5f4; }
.lead-status.is-success { border-color: rgba(98, 214, 173, 0.36); background: #f3fbf8; }
.lead-status strong { display: block; margin-bottom: 8px; }
.lead-status dl { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 8px 12px; margin: 12px 0 0; font-size: 14px; }
.lead-status dt { color: var(--muted); }
.lead-status dd { margin: 0; overflow-wrap: anywhere; font-weight: 800; }
.status-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.mini-button { appearance: none; display: inline-flex; align-items: center; min-height: 38px; padding: 0 12px; border: 1px solid rgba(18, 24, 34, 0.14); border-radius: 999px; background: #fff; color: var(--ink); cursor: pointer; font-weight: 800; }
.site-footer { padding: 44px 0 60px; display: flex; justify-content: space-between; gap: 24px; color: var(--muted); font-size: 14px; }
.site-footer strong { color: var(--ink); }

body.js-ready [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 640ms ease, transform 640ms ease; }
body.js-ready [data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@keyframes atmosphereDrift { from { transform: scale(1.04) translateX(0); } to { transform: scale(1.08) translateX(-18px); } }
@keyframes haloPulse { from { opacity: 0.72; transform: scale(0.96); } to { opacity: 1; transform: scale(1.06); } }

@media (max-width: 1040px) {
  .nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; padding-top: 120px; }
  .device-stage { min-height: 430px; }
  .device-shell { transform: none; }
  .proof-band { grid-template-columns: 1fr 1fr; }
  .proof-intro { grid-column: 1 / -1; }
  .split-layout, .steps, .service-grid, .consult-shell { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .topbar-inner,
  .hero-grid,
  .proof-band,
  .section,
  .service-inner,
  .site-footer { width: min(100% - 32px, var(--max)); }
  .topbar-inner { min-height: 66px; }
  .brand-orb { width: 30px; height: 30px; }
  .hero { min-height: auto; }
  .hero-grid { padding: 106px 0 58px; gap: 28px; }
  .hero-copy h1 { font-size: 42px; }
  .hero-lead { font-size: 24px; }
  .actions .button, .form-actions .button { width: 100%; }
  .text-link { width: 100%; text-align: center; }
  .device-stage { min-height: 300px; }
  .stage-card { display: none; }
  .device-shell { border-radius: 20px; }
  .device-top, .screen-top { height: 34px; }
  .device-screen { padding: 8px; }
  .proof-band { grid-template-columns: 1fr; margin-top: 0; border-radius: 0; width: 100%; }
  .section { padding: 78px 0; }
  .workflow { padding-top: 78px; padding-bottom: 78px; }
  .section-copy h2, .section-head h2, .service h2, .consult h2 { font-size: 34px; }
  .service-inner { padding: 78px 0; }
  .consult-copy, .lead-form { padding: 22px; border-radius: 22px; }
  .lead-status dl { grid-template-columns: 1fr; }
  .site-footer { display: grid; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}