:root {
  --bg: #031026;
  --bg-soft: #061a3a;
  --panel: rgba(9, 31, 68, 0.72);
  --panel-strong: rgba(13, 43, 88, 0.92);
  --line: rgba(134, 190, 255, 0.18);
  --text: #f6fbff;
  --muted: #a9c3df;
  --accent: #34d8ff;
  --accent-2: #2f7dff;
  --warm: #ffd166;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius-lg: 34px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --max-width: 1180px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, rgba(52, 216, 255, 0.2), transparent 28rem),
    radial-gradient(circle at 88% 4%, rgba(47, 125, 255, 0.32), transparent 30rem),
    linear-gradient(145deg, #020817 0%, #031026 42%, #08255b 100%);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
}

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

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

/* ============================
   HEADER
   ============================ */
.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: flex;
  width: min(calc(100% - 32px), var(--max-width));
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(3, 16, 38, 0.72);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.brand,
.site-nav,
.hero-actions,
.trust-row,
.contact-lines {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: #06142c;
  background: linear-gradient(135deg, var(--accent), #ffffff);
  box-shadow: 0 0 22px rgba(52, 216, 255, 0.46);
}

.site-nav {
  gap: 6px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: 0.2s ease;
}

.site-nav a:hover,
.site-nav .nav-cta {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
}

.site-nav .nav-cta {
  border: 1px solid rgba(52, 216, 255, 0.38);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.09);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--text);
}

/* ============================
   LAYOUT SHELLS
   ============================ */
.section-shell {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

/* ============================
   HERO
   ============================ */
.hero {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 54px;
  align-items: center;
  padding: 150px 0 86px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h1 br {
  display: block;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.hero-lead,
.section-heading p,
.worry-copy p,
.about-panel p,
.contact-card p,
.insight-card p,
.service-step p,
.product-lead,
.data-desc {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 34px;
  font-size: 19px;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-btn {
  color: #031026;
  background: linear-gradient(135deg, var(--accent), #f4fbff);
  box-shadow: 0 16px 42px rgba(52, 216, 255, 0.32);
}

.secondary-btn {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

.primary-btn:hover,
.secondary-btn:hover {
  transform: translateY(-3px);
}

.trust-row {
  flex-wrap: wrap;
  gap: 12px;
}

.trust-row span {
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
}

.trust-row strong {
  color: var(--text);
}

.hero-card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
}

.hero-card::before {
  position: absolute;
  inset: 22px;
  z-index: -1;
  content: "";
  border-radius: inherit;
  background: rgba(52, 216, 255, 0.14);
  filter: blur(46px);
}

.avatar-orbit {
  display: grid;
  width: min(100%, 360px);
  aspect-ratio: 1;
  place-items: center;
  margin: 0 auto 24px;
  border: 1px solid rgba(52, 216, 255, 0.38);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 216, 255, 0.22), rgba(255, 255, 255, 0.04) 56%, transparent 58%);
}

.avatar-orbit img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  filter: drop-shadow(0 18px 38px rgba(0, 0, 0, 0.28));
}

.profile-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(2, 10, 26, 0.42);
}

.profile-role {
  margin-bottom: 8px;
  color: var(--warm);
  font-weight: 800;
}

/* ============================
   SECTIONS SPACING
   ============================ */
.cap-section,
.insights,
.cases,
.data-section,
.worry-section,
.service-section,
.about-section {
  padding: 90px 0;
}

.contact-section {
  padding: 92px 0 92px;
}

.product-section {
  padding: 56px 0;
}

.section-heading {
  width: min(calc(100% - 40px), 760px);
  margin: 0 auto 38px;
  text-align: center;
}

/* ============================
   CAPABILITY MATRIX
   ============================ */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.cap-card {
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(52, 216, 255, 0.08), transparent 58%),
              var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.cap-card:hover {
  transform: translateY(-6px);
  border-color: rgba(52, 216, 255, 0.5);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.4);
}

.cap-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 16px;
  color: var(--accent);
  background: rgba(52, 216, 255, 0.12);
}

.cap-icon--ai {
  color: var(--warm);
  background: rgba(255, 209, 102, 0.14);
}

.cap-icon--marketing {
  color: #7ee0a0;
  background: rgba(126, 224, 160, 0.12);
}

.cap-icon--trade {
  color: #c3a0ff;
  background: rgba(195, 160, 255, 0.12);
}

.cap-card h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.cap-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.cap-arrow {
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.cap-card:hover .cap-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ============================
   PRODUCT SECTIONS
   ============================ */
.product-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 20px 0;
}

.product-block--reverse {
  direction: rtl;
}

.product-block--reverse .product-copy {
  direction: ltr;
}

.product-visual {
  position: relative;
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  overflow: hidden;
  display: grid;
  place-items: center;
}

/* AI Chat Mockup */
.product-visual--ai {
  background: radial-gradient(circle at 60% 40%, rgba(52, 216, 255, 0.18), transparent 60%),
              var(--panel);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 20px;
}

.ai-chat-mock {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 18px;
  font-size: 13px;
  line-height: 1.5;
  animation: chatSlide 0.6s ease both;
}

.chat-bubble--user {
  align-self: flex-end;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  border-bottom-right-radius: 6px;
  animation-delay: 0.2s;
}

.chat-bubble--agent {
  align-self: flex-start;
  background: rgba(52, 216, 255, 0.15);
  color: var(--text);
  border: 1px solid rgba(52, 216, 255, 0.25);
  border-bottom-left-radius: 6px;
  animation-delay: 0.5s;
}

.chat-bubble--user:nth-child(3) {
  animation-delay: 0.8s;
}

.chat-bubble--agent:nth-child(4) {
  animation-delay: 1.1s;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  background: rgba(255, 255, 255, 0.05);
  animation: chatSlide 0.6s ease both;
  animation-delay: 1.4s;
}

.cs-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7ee0a0;
  box-shadow: 0 0 8px rgba(126, 224, 160, 0.6);
  animation: dotBlink 2s ease-in-out infinite;
}

@keyframes chatSlide {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Factory visual */
.product-visual--factory {
  background: radial-gradient(circle at 40% 60%, rgba(47, 125, 255, 0.15), transparent 60%),
              var(--panel);
}

.factory-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 80%;
}

.fg-item {
  padding: 16px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.fg-item:nth-child(1) { border-color: rgba(52, 216, 255, 0.5); color: var(--accent); }
.fg-item:nth-child(3) { border-color: rgba(255, 209, 102, 0.5); color: var(--warm); }
.fg-item:nth-child(5) { border-color: rgba(126, 224, 160, 0.5); color: #7ee0a0; }

.factory-progress {
  position: absolute;
  bottom: 20px;
  left: 10%;
  right: 10%;
  height: 3px;
  border-radius: 999px;
  background: var(--line);
}

.factory-progress::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 78%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: progressPulse 3s ease-in-out infinite;
}

@keyframes progressPulse {
  0%, 100% { width: 72%; }
  50% { width: 82%; }
}

/* Growth visual */
.product-visual--growth {
  background: radial-gradient(circle at 30% 70%, rgba(126, 224, 160, 0.12), transparent 60%),
              var(--panel);
}

/* Growth Chart (SVG-based line chart) */
.product-visual--growth {
  background: radial-gradient(circle at 50% 30%, rgba(52, 216, 255, 0.12), transparent 70%),
              var(--panel);
  padding: 24px 22px;
  display: block;
}

.growth-chart-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.gcw-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.gcw-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.02em;
}

.gcw-legend {
  display: flex;
  gap: 14px;
}

.gcw-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}

.gcw-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.gcw-legend-item--ai .gcw-dot { background: var(--accent); }
.gcw-legend-item--old .gcw-dot { background: rgba(169, 195, 223, 0.5); }

.gcw-svg {
  width: 100%;
  height: 180px;
  display: block;
}

.gcw-xaxis {
  display: flex;
  justify-content: space-between;
  padding: 0 6px;
  color: var(--muted);
  font-size: 11px;
  margin-top: -4px;
}

.gcw-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.gcw-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.gcw-metric-val {
  font-size: 20px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.gcw-metric-lbl {
  font-size: 11px;
  color: var(--muted);
}

/* Product copy */
.product-copy {
  padding: 10px 0;
}

.product-lead {
  margin-bottom: 24px;
  font-size: 18px;
  line-height: 1.8;
}

.feature-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.feature-list li:hover {
  border-color: rgba(52, 216, 255, 0.35);
  background: rgba(255, 255, 255, 0.07);
}

.feature-list li strong {
  color: var(--text);
}

/* ============================
   DATA SECTION
   ============================ */
.data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.data-card {
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.data-card:hover {
  transform: translateY(-4px);
  border-color: rgba(52, 216, 255, 0.4);
}

.data-value {
  margin-bottom: 12px;
  line-height: 1;
}

.data-num {
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--accent), #ffffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.data-unit {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
}

.data-label {
  margin-bottom: 8px;
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
}

.data-desc {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ============================
   INSIGHTS
   ============================ */
.insight-grid,
.reference-grid,
.service-timeline {
  display: grid;
  gap: 18px;
}

.insight-grid {
  grid-template-columns: repeat(4, 1fr);
}

.insight-card,
.service-step,
.about-panel,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.insight-card,
.service-step {
  padding: 24px;
}

.insight-card span,
.case-tag,
.step-number {
  color: var(--accent);
  font-weight: 900;
}

/* ============================
   CASES - MODULES
   ============================ */
.insight-grid,
.reference-grid,
.service-timeline {
  display: grid;
  gap: 18px;
}

/* Case module container */
.case-module {
  margin-bottom: 36px;
}

.case-module:last-child {
  margin-bottom: 0;
}

/* Module header */
.case-module-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(52, 216, 255, 0.08), transparent 60%),
              var(--panel);
  backdrop-filter: blur(12px);
}

.cmh-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border-radius: 12px;
  color: var(--accent);
  background: rgba(52, 216, 255, 0.12);
}

.cmh-icon--factory {
  color: #ffd166;
  background: rgba(255, 209, 102, 0.12);
}

.cmh-icon--global {
  color: #7ee0a0;
  background: rgba(126, 224, 160, 0.12);
}

.cmh-eyebrow {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 800;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.cmh-title {
  margin: 0;
  font-size: 22px;
  line-height: 1;
  color: var(--text);
}

.cmh-count {
  margin-left: auto;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

/* Mini case grid */
.mini-case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.mini-case {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mini-case:hover {
  transform: translateY(-3px);
  border-color: rgba(52, 216, 255, 0.4);
  background: rgba(255, 255, 255, 0.07);
}

.mc-industry {
  align-self: flex-start;
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  background: rgba(52, 216, 255, 0.1);
  letter-spacing: 0.02em;
}

.mc-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.15;
}

.mc-metric strong {
  font-size: 24px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.02em;
}

.mc-metric span {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

.mini-case p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ============================
   WORRY SECTION
   ============================ */
.worry-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
  align-items: center;
}

.worry-list {
  display: grid;
  gap: 14px;
}

.worry-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  font-size: 16px;
}

.worry-item span {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 22px rgba(255, 209, 102, 0.5);
}

/* ============================
   SERVICE TIMELINE
   ============================ */
.service-timeline {
  grid-template-columns: repeat(3, 1fr);
}

.step-number {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 50%;
  color: #031026;
  background: linear-gradient(135deg, var(--accent), #ffffff);
}

/* ============================
   ABOUT
   ============================ */
.about-panel {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
}

.about-panel ul {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.about-panel li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
}

/* ============================
   CONTACT
   ============================ */
.contact-card {
  display: grid;
  width: min(calc(100% - 40px), var(--max-width));
  grid-template-columns: 1fr 240px;
  gap: 34px;
  align-items: center;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 58px);
  background:
    radial-gradient(circle at top right, rgba(52, 216, 255, 0.2), transparent 28rem),
    var(--panel-strong);
}

.contact-lines {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.contact-lines span {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
}

.qr-box {
  padding: 18px;
  border-radius: 26px;
  text-align: center;
  background: #ffffff;
}

.qr-box img {
  width: 100%;
  border-radius: 16px;
}

.qr-box p {
  margin: 12px 0 0;
  color: #06142c;
  font-weight: 900;
}

/* ============================
   FOOTER
   ============================ */
.site-footer {
  padding: 34px 20px 44px;
  color: var(--muted);
  text-align: center;
}

/* ============================
   REVEAL ANIMATIONS
   ============================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.18s; }
.delay-3 { transition-delay: 0.26s; }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
  .cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-block,
  .product-block--reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-block--reverse {
    direction: ltr;
  }

  .product-visual {
    min-height: 240px;
  }

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

@media (max-width: 920px) {
  .site-header {
    top: 12px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(3, 16, 38, 0.94);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px 16px;
  }

  .hero,
  .worry-section,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    padding-top: 126px;
  }

  .insight-grid,
  .service-timeline {
    grid-template-columns: 1fr 1fr;
  }

  .mini-case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .qr-box {
    width: min(300px, 100%);
  }
}

@media (max-width: 620px) {
  .brand-text {
    max-width: 172px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .section-shell,
  .section-heading,
  .contact-card {
    width: min(calc(100% - 28px), var(--max-width));
  }

  h1 {
    font-size: clamp(36px, 12vw, 48px);
  }

  .hero-lead,
  .section-heading p,
  .worry-copy p,
  .about-panel p,
  .contact-card p,
  .insight-card p,
  .mini-case p,
  .service-step p,
  .product-lead {
    font-size: 15px;
  }

  .hero-actions a,
  .primary-btn,
  .secondary-btn {
    width: 100%;
  }

  .cap-grid,
  .insight-grid,
  .mini-case-grid,
  .service-timeline,
  .data-grid {
    grid-template-columns: 1fr;
  }

  /* 手机端：模块头简化布局 */
  .case-module-head {
    flex-wrap: wrap;
    padding: 16px 18px;
    gap: 12px;
    border: 1px solid rgba(52, 216, 255, 0.25);
    background: linear-gradient(135deg, rgba(52, 216, 255, 0.14), rgba(9, 31, 68, 0.9));
  }

  .cmh-icon {
    width: 40px;
    height: 40px;
  }

  .cmh-title {
    font-size: 18px;
  }

  .cmh-count {
    margin-left: 0;
    width: 100%;
    text-align: center;
    background: rgba(52, 216, 255, 0.08);
    border-color: rgba(52, 216, 255, 0.3);
    color: var(--text);
    font-weight: 700;
  }

  /* 手机端：迷你卡片视觉增强 */
  .case-module {
    margin-bottom: 28px;
  }

  .mini-case-grid {
    gap: 10px;
  }

  .mini-case {
    padding: 18px 16px;
    border: 1px solid rgba(52, 216, 255, 0.2);
    background: linear-gradient(150deg, rgba(52, 216, 255, 0.06), rgba(9, 31, 68, 0.7));
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  }

  .mc-industry {
    font-size: 12px;
    padding: 5px 12px;
  }

  .mc-metric strong {
    font-size: 26px;
  }

  .mc-metric span {
    font-size: 13px;
  }

  .mini-case p {
    font-size: 13px;
    line-height: 1.6;
  }

  .product-section {
    padding: 36px 0;
  }

  .cap-section,
  .insights,
  .cases,
  .data-section,
  .worry-section,
  .service-section,
  .about-section {
    padding: 62px 0;
  }

  .data-num {
    font-size: 46px;
  }
}