/* ===========================
   数旋科技 Data Cyclone
   Tech-style static site
   =========================== */

:root {
  --bg: #070b16;
  --bg-2: #0c1326;
  --bg-3: #111a33;
  --fg: #e6edf7;
  --muted: #8a97b3;
  --line: rgba(120, 160, 220, 0.14);
  --cyan: #00f0ff;
  --blue: #5b8cff;
  --purple: #a78bfa;
  --green: #34d399;
  --grad: linear-gradient(120deg, #00f0ff 0%, #5b8cff 55%, #a78bfa 100%);
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ---------- Particle background ---------- */
#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.6;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: all 0.3s ease;
  backdrop-filter: blur(0px);
}
.nav.scrolled {
  padding: 10px 0;
  background: rgba(7, 11, 22, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  display: inline-flex;
  filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.55));
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong {
  font-size: 17px;
  letter-spacing: 2px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text em {
  font-style: normal;
  font-size: 10px;
  letter-spacing: 2.5px;
  color: var(--muted);
  margin-top: 2px;
}
.nav-links { display: flex; gap: 28px; }
.nav-link {
  font-size: 14.5px;
  color: var(--muted);
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--grad);
  transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: var(--fg); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--fg);
  margin: 5px 0;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91, 140, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 140, 255, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.12), transparent 60%);
  z-index: -1;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--cyan);
  padding: 6px 14px;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 999px;
  margin-bottom: 26px;
  background: rgba(0, 240, 255, 0.05);
}
.hero-title {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 22px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-title small {
  display: block;
  font-size: 0.38em;
  font-weight: 500;
  letter-spacing: 6px;
  color: var(--muted);
  margin-top: 10px;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 34px;
  max-width: 520px;
}
.hero-subtitle b { color: var(--fg); font-weight: 600; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 46px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s ease;
}
.btn-primary {
  background: var(--grad);
  color: #06121f;
  box-shadow: 0 8px 24px rgba(0, 240, 255, 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 240, 255, 0.45);
}
.btn-ghost {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--fg);
  background: rgba(255, 255, 255, 0.03);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.06);
}
.btn-block { width: 100%; }

.hero-stats {
  list-style: none;
  display: flex;
  gap: 40px;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong {
  font-size: 30px;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stats span { font-size: 12.5px; color: var(--muted); letter-spacing: 1px; }

/* Hero visual - hex orb */
.hero-visual { display: flex; justify-content: center; }
.hex-orb {
  position: relative;
  width: 380px; height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring {
  position: absolute;
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 50%;
  animation: spin 18s linear infinite;
}
.ring-1 { width: 100%; height: 100%; border-top-color: var(--cyan); border-right-color: var(--cyan); }
.ring-2 { width: 78%; height: 78%; border-bottom-color: var(--blue); border-left-color: var(--blue); animation-duration: 14s; animation-direction: reverse; }
.ring-3 { width: 56%; height: 56%; border-top-color: var(--purple); animation-duration: 10s; }
.core {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(0,240,255,0.25), rgba(91,140,255,0.15));
  border: 1px solid rgba(0, 240, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--cyan);
  box-shadow: 0 0 50px rgba(0, 240, 255, 0.35), inset 0 0 30px rgba(0, 240, 255, 0.2);
  animation: pulse 3s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 50px rgba(0, 240, 255, 0.35), inset 0 0 30px rgba(0, 240, 255, 0.2); }
  50% { box-shadow: 0 0 80px rgba(0, 240, 255, 0.55), inset 0 0 40px rgba(0, 240, 255, 0.3); }
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 2px;
}
.mouse {
  width: 22px; height: 36px;
  border: 1.5px solid var(--muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 7px;
}
.wheel {
  width: 3px; height: 8px;
  background: var(--cyan);
  border-radius: 2px;
  animation: wheel 1.6s ease-in-out infinite;
}
@keyframes wheel { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }

/* ---------- Sections ---------- */
.section {
  padding: 110px 0;
  position: relative;
}
.section-alt { background: linear-gradient(180deg, transparent, rgba(91, 140, 255, 0.04), transparent); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 14px;
}
.section-desc { color: var(--muted); font-size: 16px; }

/* ---------- Cards (services) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  padding: 30px 26px;
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.7), rgba(12, 19, 38, 0.5));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: all 0.35s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 240, 255, 0.08);
}
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 54px; height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--i, var(--cyan));
  background: color-mix(in srgb, var(--i, var(--cyan)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--i, var(--cyan)) 30%, transparent);
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.card-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags li {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(91, 140, 255, 0.08);
  color: var(--blue);
  border: 1px solid rgba(91, 140, 255, 0.2);
}

/* ---------- Industries ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.industry {
  display: block;
  padding: 30px 26px;
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.7), rgba(12, 19, 38, 0.5));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.industry::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--i, var(--grad));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.industry:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--i, var(--cyan)) 35%, transparent);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4), 0 0 30px color-mix(in srgb, var(--i, var(--cyan)) 10%, transparent);
}
.industry:hover::before { transform: scaleX(1); }
.industry > * { position: relative; z-index: 1; }
.industry-icon {
  width: 54px; height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--i, var(--cyan));
  background: color-mix(in srgb, var(--i, var(--cyan)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--i, var(--cyan)) 30%, transparent);
}
.industry-num {
  font-size: 14px;
  font-weight: 700;
  color: color-mix(in srgb, var(--i, var(--cyan)) 70%, transparent);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.industry h3 { font-size: 22px; margin-bottom: 10px; }
.industry p { font-size: 14px; color: var(--muted); margin-bottom: 16px; line-height: 1.7; }
.industry-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.industry-tags li {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--i, var(--cyan)) 10%, transparent);
  color: var(--i, var(--cyan));
  border: 1px solid color-mix(in srgb, var(--i, var(--cyan)) 25%, transparent);
}
.industry-link {
  font-size: 13px;
  color: var(--i, var(--cyan));
  letter-spacing: 0.5px;
  opacity: 0.85;
  transition: opacity 0.3s ease;
}
.industry:hover .industry-link { opacity: 1; }

/* ---------- Cases ---------- */
.case-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 44px;
}
.case-filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--line);
  background: rgba(12, 19, 38, 0.5);
  color: var(--muted);
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.25s ease;
}
.case-filter-btn:hover {
  color: var(--fg);
  border-color: rgba(0, 240, 255, 0.4);
}
.case-filter-btn.active {
  background: var(--grad);
  color: #06121f;
  border-color: transparent;
  font-weight: 600;
}

.case-carousel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
}
.case-viewport {
  overflow: hidden;
  flex: 1;
}
.case-track {
  display: flex;
  gap: 22px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.case-track .case-card {
  flex: 0 0 calc((100% - 44px) / 3);
  min-width: 0;
}
.case-card.hide { display: none; }

.carousel-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(12, 19, 38, 0.8);
  color: var(--fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
}
.carousel-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
}
.case-card {
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.7), rgba(12, 19, 38, 0.5));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
}
.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 240, 255, 0.08);
}

.case-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent, var(--cyan));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent, var(--cyan)) 22%, transparent), transparent 70%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 12px, transparent 12px 24px),
    rgba(7, 11, 22, 0.5);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.case-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, color-mix(in srgb, var(--accent, var(--cyan)) 18%, transparent), transparent 55%);
  pointer-events: none;
}
.case-visual svg { position: relative; z-index: 1; opacity: 0.85; }

.case-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.case-cat {
  align-self: flex-start;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--accent, var(--cyan));
  background: color-mix(in srgb, var(--accent, var(--cyan)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, var(--cyan)) 30%, transparent);
  margin-bottom: 12px;
}
.case-body h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.4; }
.case-body p { font-size: 13.5px; color: var(--muted); margin-bottom: 16px; flex: 1; }
.case-metrics {
  list-style: none;
  display: flex;
  gap: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  margin-bottom: 14px;
}
.case-metrics li { display: flex; flex-direction: column; }
.case-metrics strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent, var(--cyan));
}
.case-metrics span { font-size: 11.5px; color: var(--muted); }
.case-link {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.5px;
}
.case-link:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- GEO 实体定义块 ---------- */
.geo-entity { padding-bottom: 90px; }
.geo-card {
  max-width: 880px;
  margin: 0 auto;
  padding: 44px 48px;
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.7), rgba(12, 19, 38, 0.5));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  text-align: center;
}
.geo-card .section-tag { margin-bottom: 14px; }
.geo-card .section-title { margin-bottom: 20px; }
.geo-definition {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 28px;
  text-align: left;
}
.geo-definition strong { color: var(--fg); font-weight: 600; }
.geo-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  text-align: left;
}
.geo-meta > div {
  padding: 14px 16px;
  background: rgba(7, 11, 22, 0.4);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.geo-meta dt {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.geo-meta dd {
  font-size: 14px;
  color: var(--fg);
  margin: 0;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.5), rgba(12, 19, 38, 0.3));
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item[open] {
  border-color: rgba(0, 240, 255, 0.35);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 240, 255, 0.06);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}
.faq-icon {
  position: relative;
  width: 18px; height: 18px;
  flex-shrink: 0;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform 0.3s ease;
}
.faq-icon::before { width: 18px; height: 2px; top: 8px; left: 0; }
.faq-icon::after { width: 2px; height: 18px; top: 0; left: 8px; }
.faq-item[open] .faq-icon::after { transform: scaleY(0); }
.faq-a {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.8;
}

/* ---------- Features (about) ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature {
  padding: 30px 26px;
  border-left: 2px solid rgba(0, 240, 255, 0.3);
  background: linear-gradient(90deg, rgba(0, 240, 255, 0.04), transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: all 0.3s ease;
}
.feature:hover {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(0, 240, 255, 0.08), transparent);
}
.feature-no {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.feature h3 { font-size: 18px; margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--muted); }

/* ---------- Contact ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: start;
}
.contact-info .section-tag { margin-bottom: 14px; }
.contact-info .section-title { text-align: left; margin-bottom: 14px; }
.contact-info .section-desc { text-align: left; margin-bottom: 32px; }
.contact-list { list-style: none; }
.contact-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}
.ci-label { color: var(--muted); white-space: nowrap; }
.ci-value { color: var(--fg); text-align: right; }

.contact-cta {
  padding: 40px 32px;
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.7), rgba(12, 19, 38, 0.5));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cta-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: #07c160;
  background: linear-gradient(135deg, rgba(7, 193, 96, 0.15), rgba(7, 193, 96, 0.05));
  border: 1px solid rgba(7, 193, 96, 0.3);
  box-shadow: 0 0 30px rgba(7, 193, 96, 0.15);
}
.contact-cta h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(120deg, #fff, #07c160);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.contact-cta > p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 360px;
  margin-bottom: 24px;
}
.cta-points {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
  align-self: stretch;
  padding: 0 8px;
}
.cta-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--muted);
}
.cta-points .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #07c160;
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(7, 193, 96, 0.6);
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: linear-gradient(120deg, #07c160, #06ad56);
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(7, 193, 96, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(7, 193, 96, 0.5);
}
.cta-hint {
  font-size: 12.5px;
  color: var(--muted);
  opacity: 0.7;
  margin-top: 14px;
  margin-bottom: 0;
}
.cta-divider {
  position: relative;
  width: 100%;
  margin: 28px 0 24px;
  text-align: center;
}
.cta-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.cta-divider span {
  position: relative;
  display: inline-block;
  padding: 0 16px;
  background: rgba(12, 19, 38, 0.95);
  font-size: 13px;
  color: var(--muted);
  z-index: 1;
}
.cta-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.qr-box {
  position: relative;
  width: 168px;
  height: 168px;
  padding: 4px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.qr-box img {
  display: block;
  width: 160px;
  height: 160px;
  border-radius: 8px;
}
.qr-corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: #07c160;
  border-style: solid;
  border-width: 0;
}
.qr-corner.qr-tl { top: -3px; left: -3px; border-top-width: 3px; border-left-width: 3px; border-top-left-radius: 6px; }
.qr-corner.qr-tr { top: -3px; right: -3px; border-top-width: 3px; border-right-width: 3px; border-top-right-radius: 6px; }
.qr-corner.qr-bl { bottom: -3px; left: -3px; border-bottom-width: 3px; border-left-width: 3px; border-bottom-left-radius: 6px; }
.qr-corner.qr-br { bottom: -3px; right: -3px; border-bottom-width: 3px; border-right-width: 3px; border-bottom-right-radius: 6px; }
.qr-tip {
  font-size: 13px;
  color: var(--fg);
  margin: 0;
  opacity: 0.85;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding-top: 56px;
  background: rgba(7, 11, 22, 0.6);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
  padding-bottom: 40px;
}
.footer-brand .brand-text strong { font-size: 19px; }
.footer-brand p { color: var(--muted); font-size: 14px; margin-top: 12px; max-width: 280px; }
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.footer-cols h4 {
  font-size: 14px;
  margin-bottom: 16px;
  color: var(--fg);
}
.footer-cols a {
  display: block;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 10px;
  transition: color 0.2s ease;
}
.footer-cols a:hover { color: var(--cyan); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}
.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.footer-filing {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 12.5px;
}
.footer-filing a {
  color: var(--muted);
  transition: color 0.2s ease;
}
.footer-filing a:hover { color: var(--cyan); }
.footer-filing em {
  font-style: normal;
  color: var(--muted);
  opacity: 0.7;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hex-orb { width: 280px; height: 280px; }
  .card-grid, .industry-grid, .features { grid-template-columns: repeat(2, 1fr); }
  .case-track .case-card { flex: 0 0 calc((100% - 22px) / 2); }
  .geo-meta { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 680px) {
  .nav-links {
    position: fixed;
    top: 64px; right: 0;
    flex-direction: column;
    background: rgba(7, 11, 22, 0.96);
    backdrop-filter: blur(14px);
    padding: 20px 28px;
    border-left: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: block; }
  .section { padding: 80px 0; }
  .card-grid, .industry-grid, .features { grid-template-columns: 1fr; }
  .case-track .case-card { flex: 0 0 100%; }
  .geo-meta { grid-template-columns: 1fr; }
  .geo-card { padding: 32px 24px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 24px; }
  .hero-stats strong { font-size: 24px; }
}