:root {
  color-scheme: light;
  --paper: #f7f4ea;
  --paper-deep: #ece7d8;
  --paper-white: #fffdf6;
  --ink: #101d2d;
  --ink-soft: #435063;
  --line: rgba(16, 29, 45, 0.18);
  --line-strong: #101d2d;
  --blue: #275efe;
  --blue-soft: #e8edff;
  --coral: #ff6b4a;
  --coral-soft: #fff0e8;
  --green: #20b486;
  --green-soft: #e2f7ee;
  --yellow: #ffc857;
  --night: #0e1f2a;
  --night-soft: #173441;
  --shadow: 7px 7px 0 rgba(16, 29, 45, 0.14);
  --shadow-strong: 8px 8px 0 #101d2d;
  --radius-sm: 12px;
  --radius: 22px;
  --radius-lg: 34px;
  --container: 1180px;
  --display: "Arial Black", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --body: Manrope, "HarmonyOS Sans SC", "Microsoft YaHei", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(16, 29, 45, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 29, 45, 0.055) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border: 2px solid var(--ink);
  background: var(--paper-white);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 36px), var(--container));
  margin-inline: auto;
}

.section {
  padding: 92px 0;
}

.section-compact {
  padding: 62px 0;
}

.paper-band {
  border-block: 2px solid var(--ink);
  background: rgba(255, 253, 246, 0.88);
}

.dark-band {
  position: relative;
  overflow: hidden;
  border-block: 2px solid var(--ink);
  background:
    radial-gradient(circle at 16% 18%, rgba(39, 94, 254, 0.32), transparent 33%),
    radial-gradient(circle at 84% 78%, rgba(32, 180, 134, 0.2), transparent 35%),
    var(--night);
  color: #f8fbff;
}

.dark-band::after {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  content: "";
  pointer-events: none;
}

.dark-band > * {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 28px;
  height: 8px;
  background: var(--coral);
  content: "";
}

.title-display,
.section-title,
.card-title {
  margin: 0;
  font-family: var(--display);
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.title-display {
  max-width: 880px;
  font-size: clamp(3rem, 7vw, 6.9rem);
}

.section-title {
  max-width: 820px;
  font-size: clamp(2rem, 4.4vw, 4.25rem);
}

.card-title {
  font-size: clamp(1.28rem, 2.2vw, 2rem);
}

.lede {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
}

.dark-band .lede,
.dark-band .muted {
  color: rgba(248, 251, 255, 0.76);
}

.muted {
  color: var(--ink-soft);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 48px;
  align-items: end;
  margin-bottom: 42px;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.dark-band .section-head p {
  color: rgba(248, 251, 255, 0.76);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 19px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-white);
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.2;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--ink);
}

.button-primary {
  background: var(--blue);
  color: #fff;
}

.button-coral {
  background: var(--coral);
  color: var(--ink);
}

.button-dark {
  border-color: #f8fbff;
  background: #f8fbff;
  color: var(--night);
}

.button-ghost-dark {
  border-color: rgba(255, 255, 255, 0.62);
  background: transparent;
  color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 2px solid var(--ink);
  background: rgba(247, 244, 234, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: grid;
  min-height: 76px;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--display);
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper-white);
  object-fit: contain;
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy small {
  margin-top: 5px;
  font-family: var(--mono);
  font-size: 0.57rem;
  font-weight: 600;
  letter-spacing: 0.13em;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link,
.nav-trigger {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-weight: 750;
}

.nav-link:hover,
.nav-trigger:hover,
.nav-link[aria-current="page"] {
  background: var(--paper-white);
}

.nav-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  display: grid;
  width: min(720px, 80vw);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 12px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-white);
  box-shadow: var(--shadow-strong);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.nav-item:hover .nav-panel,
.nav-item:focus-within .nav-panel,
.nav-item.is-open .nav-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.nav-card {
  display: grid;
  gap: 3px;
  padding: 12px;
  border-radius: 14px;
}

.nav-card:hover {
  background: var(--blue-soft);
}

.nav-card strong {
  font-size: 0.94rem;
}

.nav-card small {
  color: var(--ink-soft);
  line-height: 1.35;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 9px;
}

.language-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 8px 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.menu-button {
  display: none;
  width: 46px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-white);
  color: var(--ink);
  cursor: pointer;
  font-size: 1.2rem;
}

.hero {
  position: relative;
  padding: 82px 0 76px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  top: 42px;
  right: max(2vw, calc((100vw - var(--container)) / 2));
  width: clamp(120px, 18vw, 260px);
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: var(--shadow-strong);
  content: "";
  opacity: 0.88;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  gap: 52px;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-visual {
  position: relative;
  z-index: 3;
  min-height: 470px;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-white);
  font-family: var(--mono);
  font-size: 0.73rem;
  font-weight: 700;
}

.status-pill::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.journey-board {
  position: relative;
  display: grid;
  min-height: 440px;
  align-content: center;
  padding: 28px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  background: var(--paper-white);
  box-shadow: var(--shadow-strong);
  transform: rotate(1.5deg);
}

.journey-board::before {
  position: absolute;
  inset: 14px;
  border: 1px dashed rgba(16, 29, 45, 0.36);
  border-radius: 22px;
  content: "";
  pointer-events: none;
}

.journey-title {
  position: relative;
  z-index: 1;
  margin-bottom: 22px;
  font-family: var(--display);
  font-size: 1.55rem;
  line-height: 1.1;
}

.journey-steps {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
}

.journey-step {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1.5px solid var(--ink);
  border-radius: 14px;
  background: var(--paper);
}

.journey-step:nth-child(2) {
  margin-left: 24px;
  background: var(--blue-soft);
}

.journey-step:nth-child(3) {
  margin-left: 48px;
  background: var(--green-soft);
}

.journey-step:nth-child(4) {
  margin-left: 72px;
  background: var(--coral-soft);
}

.step-no {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.journey-step strong {
  line-height: 1.25;
}

.journey-step span:last-child {
  font-family: var(--mono);
  font-size: 0.7rem;
}

.product-hero {
  padding-bottom: 72px;
}

.product-hero .title-display {
  font-size: clamp(2.9rem, 6.6vw, 6.35rem);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-top: 24px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.breadcrumb a:hover {
  color: var(--blue);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag {
  padding: 6px 10px;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-white);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
}

.tag-blue { background: var(--blue-soft); }
.tag-green { background: var(--green-soft); }
.tag-coral { background: var(--coral-soft); }

.audience-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  max-width: 760px;
  margin: 22px 0 0;
  padding: 14px 16px;
  border: 1.5px solid var(--ink);
  border-radius: 14px;
  background: var(--paper-white);
  box-shadow: 4px 4px 0 rgba(16, 29, 45, 0.14);
}

.audience-note strong {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.audience-note span {
  color: var(--ink-soft);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 20px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-white);
  box-shadow: var(--shadow);
}

.card-accent-blue { background: var(--blue-soft); }
.card-accent-green { background: var(--green-soft); }
.card-accent-coral { background: var(--coral-soft); }
.card-accent-yellow { background: #fff3c9; }

.card-number {
  display: inline-grid;
  width: 44px;
  height: 44px;
  margin-bottom: 34px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper-white);
  font-family: var(--mono);
  font-weight: 800;
}

.card p {
  margin: 14px 0 0;
  color: var(--ink-soft);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  font-weight: 800;
}

.card-link:hover {
  color: var(--blue);
}

.product-card {
  display: flex;
  min-height: 330px;
  flex-direction: column;
}

.product-card .card-link {
  margin-top: auto;
  padding-top: 24px;
}

.product-index {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-art {
  position: absolute;
  right: -34px;
  bottom: -38px;
  width: 140px;
  height: 140px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  opacity: 0.62;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 2px solid var(--ink);
  background: var(--paper-white);
  box-shadow: var(--shadow-strong);
}

.metric {
  min-height: 142px;
  padding: 22px;
  border-right: 2px solid var(--ink);
}

.metric:last-child {
  border-right: 0;
}

.metric strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.8vw, 2.7rem);
  line-height: 1;
}

.metric span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.demo-shell {
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
}

.demo-toolbar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px 13px;
}

.demo-toolbar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
}

.demo-toolbar i:nth-child(2) { background: var(--yellow); }
.demo-toolbar i:nth-child(3) { background: var(--green); }

.demo-image-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 22px;
  background: #edf3f4;
}

.demo-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.demo-image-ztb {
  height: calc(100% + 28px);
  transform: translateY(-28px);
}

.proof-caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 10px 5px;
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--mono);
  font-size: 0.74rem;
}

.craft-stage {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-strong);
}

.craft-stage > img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.craft-ui {
  position: absolute;
  top: 32px;
  left: 28px;
  display: grid;
  width: min(360px, calc(100% - 56px));
  gap: 12px;
}

.craft-ui-card {
  padding: 15px 17px;
  border: 2px solid var(--ink);
  border-radius: 17px;
  background: rgba(255, 253, 246, 0.94);
  box-shadow: 4px 4px 0 var(--ink);
  backdrop-filter: blur(8px);
}

.craft-ui-card:nth-child(2) {
  margin-left: 36px;
  background: rgba(226, 247, 238, 0.96);
}

.craft-ui-card:nth-child(3) {
  margin-left: 72px;
  background: rgba(255, 240, 232, 0.96);
}

.craft-ui-card small {
  display: block;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.craft-ui-card strong {
  display: block;
  margin-top: 4px;
  line-height: 1.3;
}

.timeline {
  position: relative;
  display: grid;
  gap: 0;
  border: 2px solid var(--ink);
  background: var(--paper-white);
  box-shadow: var(--shadow-strong);
}

.timeline-step {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  border-bottom: 2px solid var(--ink);
}

.timeline-step:last-child {
  border-bottom: 0;
}

.timeline-no {
  display: grid;
  min-height: 132px;
  place-items: center;
  border-right: 2px solid var(--ink);
  background: var(--blue-soft);
  font-family: var(--display);
  font-size: 2rem;
}

.timeline-step:nth-child(2) .timeline-no { background: var(--green-soft); }
.timeline-step:nth-child(3) .timeline-no { background: var(--coral-soft); }
.timeline-step:nth-child(4) .timeline-no { background: #fff3c9; }

.timeline-copy {
  align-self: center;
  padding: 24px 28px;
}

.timeline-copy h3 {
  margin: 0;
  font-size: 1.25rem;
}

.timeline-copy p {
  margin: 6px 0 0;
  color: var(--ink-soft);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.boundary-card {
  padding: 28px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--green-soft);
  box-shadow: var(--shadow);
}

.boundary-card.is-limit {
  background: var(--coral-soft);
}

.check-list,
.plain-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.plain-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--green);
  content: "✓";
  font-weight: 900;
}

.is-limit .check-list li::before {
  color: var(--coral);
  content: "—";
}

.plain-list li::before {
  position: absolute;
  top: 0.62em;
  left: 3px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 2px solid var(--ink);
  border-radius: 18px;
  background: var(--paper-white);
  box-shadow: 4px 4px 0 rgba(16, 29, 45, 0.12);
}

.faq-list summary {
  padding: 20px 52px 20px 20px;
  cursor: pointer;
  font-weight: 850;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  float: right;
  margin-right: -30px;
  content: "+";
  font-size: 1.3rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--ink-soft);
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 40px;
  align-items: center;
  padding: 42px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  background: var(--yellow);
  box-shadow: var(--shadow-strong);
}

.cta-panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 4.3vw, 4rem);
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.cta-panel p {
  margin: 14px 0 0;
}

.cta-panel .button-row {
  justify-content: flex-end;
  margin: 0;
}

.insights-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.insights-count {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.insight-card {
  display: flex;
  min-height: 280px;
  flex-direction: column;
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-white);
  box-shadow: var(--shadow);
}

.insight-card time,
.insight-card .insight-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.insight-card h2 {
  margin: 26px 0 0;
  font-family: var(--display);
  font-size: 1.45rem;
  line-height: 1.12;
}

.insight-card p {
  color: var(--ink-soft);
}

.insight-card .card-link {
  margin-top: auto;
}

.empty-state,
.loading-state {
  grid-column: 1 / -1;
  min-height: 260px;
  padding: 54px 26px;
  border: 2px dashed var(--ink);
  border-radius: var(--radius-lg);
  background: rgba(255, 253, 246, 0.82);
  text-align: center;
}

.empty-state strong,
.loading-state strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.6rem, 4vw, 3rem);
}

.empty-state p,
.loading-state p {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--ink-soft);
}

.pilot-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  gap: 42px;
  align-items: start;
}

.pilot-form {
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  background: var(--paper-white);
  box-shadow: var(--shadow-strong);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-field {
  display: grid;
  gap: 7px;
}

.form-field label,
.form-legend {
  font-weight: 800;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
}

.form-field textarea {
  min-height: 130px;
  resize: vertical;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.check-option {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border: 1.5px solid var(--ink);
  border-radius: 12px;
  background: var(--paper);
}

.check-option input {
  width: 18px;
  height: 18px;
}

.consent-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
}

.consent-row input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.form-status[data-state="success"] { color: #087a57; }
.form-status[data-state="error"] { color: #b52b14; }

.form-fallback {
  font-weight: 800;
  text-decoration: underline;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.contact-card {
  min-height: 230px;
}

.contact-card a {
  overflow-wrap: anywhere;
  font-weight: 800;
}

.wechat-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 22px;
  align-items: center;
  background: var(--paper-white);
}

.wechat-card img {
  width: 150px;
  height: 150px;
  border: 2px solid var(--ink);
  border-radius: 16px;
  background: #fff;
  object-fit: contain;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.company-identity {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: 28px;
  align-items: center;
  margin-top: 20px;
  padding: 24px 26px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-white);
  box-shadow: var(--shadow);
}

.company-identity h2 {
  margin: 8px 0 0;
  font-family: var(--display);
  font-size: clamp(1.45rem, 3vw, 2.35rem);
}

.identity-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.identity-links a,
.footer-legal a {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.identity-links img,
.footer-legal img {
  flex: 0 0 auto;
}

.evidence-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  align-items: start;
}

.evidence-video {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.25);
}

.evidence-video-wide {
  max-width: 980px;
  margin-inline: auto;
}

.evidence-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  object-fit: contain;
}

.evidence-video figcaption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px;
  color: rgba(255, 255, 255, 0.72);
}

.evidence-video figcaption strong {
  color: #fff;
}

.evidence-rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.evidence-card {
  overflow: hidden;
  margin: 0;
  border: 2px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
  background: var(--paper-white);
  color: var(--ink);
}

.evidence-media {
  display: grid;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  place-items: center;
  border-bottom: 2px solid var(--ink);
  background: #eef2f3;
}

.evidence-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.evidence-card figcaption {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 10px;
  padding: 16px;
}

.evidence-card figcaption > span,
.case-sector {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.evidence-card h3,
.evidence-card p {
  margin: 0;
}

.evidence-card p {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.resource-strip {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 28px;
  align-items: center;
  margin-top: 24px;
  padding: 28px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  background: var(--yellow);
  color: var(--ink);
  box-shadow: var(--shadow-strong);
}

.resource-strip h3,
.resource-strip p {
  margin: 8px 0 0;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.case-archive {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.client-case {
  display: grid;
  grid-template-columns: minmax(150px, 0.62fr) minmax(0, 1.38fr);
  min-height: 250px;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-white);
  box-shadow: var(--shadow);
}

.case-thumb {
  min-height: 100%;
  overflow: hidden;
  border-right: 2px solid var(--ink);
  background: var(--blue-soft);
}

.case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-thumb-fallback {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 250px;
  place-content: center;
  gap: 8px;
  padding: 18px;
  background: linear-gradient(145deg, var(--coral-soft), var(--yellow));
  text-align: center;
}

.case-thumb-fallback span {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 3rem);
}

.case-thumb-fallback small {
  font-family: var(--mono);
  letter-spacing: 0.1em;
}

.case-copy {
  align-self: center;
  padding: 24px;
}

.case-sector {
  color: var(--blue);
}

.case-copy h3 {
  margin: 12px 0 0;
  font-family: var(--display);
  font-size: 1.5rem;
  line-height: 1.12;
}

.case-copy p {
  margin: 12px 0 0;
  color: var(--ink-soft);
}

.utility-dock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  display: flex;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-white);
  box-shadow: 5px 5px 0 var(--ink);
}

.utility-dock a {
  display: inline-flex;
  min-height: 42px;
  gap: 7px;
  align-items: center;
  padding: 8px 13px;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.utility-dock a + a {
  border-left: 2px solid var(--ink);
}

.utility-dock a:first-child {
  background: var(--yellow);
}

.site-footer {
  border-top: 2px solid var(--ink);
  background: var(--night);
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.3fr) repeat(3, minmax(150px, 0.7fr));
  gap: 42px;
  padding: 58px 0 42px;
}

.footer-brand p {
  max-width: 420px;
  color: rgba(255, 255, 255, 0.68);
}

.footer-title {
  margin: 0 0 13px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.72);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.82rem;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 18px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.78rem;
}

[data-reveal] {
  opacity: 1;
  transform: none;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .site-header {
    backdrop-filter: none;
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .menu-button {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 76px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 120;
    display: none;
    overflow-y: auto;
    padding: 20px 18px 48px;
    border-top: 2px solid var(--ink);
    background: var(--paper);
  }

  .main-nav.is-open {
    display: block;
  }

  .nav-item {
    display: block;
    border-bottom: 1px solid var(--line);
  }

  .nav-link,
  .nav-trigger {
    width: 100%;
    min-height: 54px;
    justify-content: space-between;
    border-radius: 0;
    text-align: left;
  }

  .nav-panel {
    position: static;
    display: none;
    width: 100%;
    grid-template-columns: 1fr;
    margin: 0 0 16px;
    padding: 8px;
    border-width: 1.5px;
    border-radius: 14px;
    box-shadow: none;
    opacity: 1;
    transform: none;
  }

  .nav-item:hover .nav-panel,
  .nav-item:focus-within .nav-panel {
    display: none;
    transform: none;
  }

  .nav-item.is-open .nav-panel {
    display: grid;
  }

  .header-actions .button {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: auto;
  }

  .grid-4,
  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric:nth-child(2) {
    border-right: 0;
  }

  .metric:nth-child(-n+2) {
    border-bottom: 2px solid var(--ink);
  }

  .insights-grid,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .evidence-layout {
    grid-template-columns: 1fr;
  }

  .case-archive {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 68px 0;
  }

  .section-compact {
    padding: 48px 0;
  }

  .header-inner {
    min-height: 68px;
    gap: 10px;
  }

  .main-nav {
    top: 68px;
  }

  .brand-copy small {
    display: none;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .language-link {
    min-height: 38px;
    padding: 7px 10px;
  }

  .hero {
    padding: 58px 0 62px;
  }

  .hero::before {
    top: 28px;
    right: -36px;
    width: 150px;
  }

  .title-display {
    font-size: clamp(2.65rem, 14vw, 4.7rem);
  }

  .product-hero .title-display {
    font-size: clamp(2.45rem, 12vw, 4.25rem);
  }

  .section-head,
  .cta-panel,
  .pilot-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .audience-note {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .boundary-grid,
  .contact-grid,
  .insights-grid,
  .footer-grid,
  .field-grid,
  .check-grid {
    grid-template-columns: 1fr;
  }

  .evidence-rail,
  .resource-strip,
  .company-identity {
    grid-template-columns: 1fr;
  }

  .resource-links,
  .identity-links {
    justify-content: flex-start;
  }

  .client-case {
    grid-template-columns: 1fr;
  }

  .case-thumb {
    min-height: 220px;
    border-right: 0;
    border-bottom: 2px solid var(--ink);
  }

  .wechat-card {
    grid-template-columns: 1fr;
  }

  .utility-dock {
    right: 12px;
    bottom: 12px;
  }

  .metric-strip {
    grid-template-columns: 1fr;
  }

  .metric,
  .metric:nth-child(2) {
    border-right: 0;
    border-bottom: 2px solid var(--ink);
  }

  .metric:last-child {
    border-bottom: 0;
  }

  .journey-board {
    min-height: 400px;
    padding: 22px 18px;
    transform: none;
  }

  .journey-step,
  .journey-step:nth-child(2),
  .journey-step:nth-child(3),
  .journey-step:nth-child(4) {
    grid-template-columns: 38px 1fr;
    margin-left: 0;
  }

  .journey-step span:last-child {
    display: none;
  }

  .step-no {
    width: 34px;
    height: 34px;
  }

  .craft-stage,
  .craft-stage > img {
    min-height: 590px;
  }

  .craft-stage > img {
    object-position: 63% center;
  }

  .craft-ui {
    top: 24px;
    left: 18px;
    width: calc(100% - 36px);
  }

  .craft-ui-card:nth-child(2),
  .craft-ui-card:nth-child(3) {
    margin-left: 0;
  }

  .timeline-step {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .timeline-no {
    min-height: 150px;
    font-size: 1.5rem;
  }

  .timeline-copy {
    padding: 20px;
  }

  .cta-panel {
    padding: 28px 22px;
  }

  .cta-panel .button-row {
    justify-content: flex-start;
  }

  .pilot-form {
    padding: 22px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}