:root {
  --blue: #0057c1;
  --cyan: #16b3ff;
  --blue-dark: #004398;
  --ink: #191c1e;
  --muted: #414755;
  --soft: #f7f9fc;
  --band: #f2f4f7;
  --line: #d9dee8;
  --warm: #ff7a45;
  --green: #10a37f;
  --shadow: 0 24px 60px rgba(22, 34, 51, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(22, 179, 255, 0.16), transparent 28%),
    radial-gradient(circle at 85% 6%, rgba(0, 87, 193, 0.14), transparent 30%),
    linear-gradient(180deg, #f8fbff 0%, var(--soft) 42%, #ffffff 100%);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 87, 193, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 87, 193, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.75), transparent 78%);
}
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }
.section-pad { padding: 80px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 80px;
  background: rgba(247, 249, 252, 0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(217, 222, 232, 0.8);
  box-shadow: 0 10px 30px rgba(22, 34, 51, 0.04);
}
.nav {
  display: grid;
  grid-template-columns: 168px 1fr 118px;
  align-items: center;
  height: 80px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 24px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 8px;
  font-size: 13px;
  box-shadow: 0 8px 22px rgba(0, 87, 193, .28);
}
.nav-links { display: flex; justify-content: center; gap: 22px; color: var(--muted); font-size: 15px; white-space: nowrap; }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.nav-dropdown-toggle::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform .2s ease;
}
.nav-dropdown:hover .nav-dropdown-toggle,
.nav-dropdown:focus-within .nav-dropdown-toggle,
.nav-dropdown.active .nav-dropdown-toggle {
  color: var(--blue);
}
.nav-dropdown:hover .nav-dropdown-toggle::after,
.nav-dropdown:focus-within .nav-dropdown-toggle::after {
  transform: translateY(1px) rotate(225deg);
}
.nav-dropdown-menu {
  position: absolute;
  left: 50%;
  top: calc(100% + 18px);
  z-index: 30;
  display: grid;
  gap: 6px;
  min-width: 210px;
  padding: 10px;
  border: 1px solid rgba(193,198,215,.75);
  border-radius: 12px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 22px 46px rgba(22,34,51,.16);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity .2s ease, transform .2s ease;
  backdrop-filter: blur(16px);
}
.nav-dropdown-menu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -18px;
  height: 18px;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 11px 12px;
  border-radius: 8px;
  color: var(--muted);
}
.nav-dropdown-menu a:hover {
  color: var(--blue);
  background: #edf5ff;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.nav-dropdown.active .nav-dropdown-toggle::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.nav-cta {
  justify-self: end;
  padding: 11px 22px;
  color: #fff;
  background: var(--blue);
  border-radius: 8px;
  font-weight: 700;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0, 87, 193, .22); background: #0068df; }
.nav-toggle { display: none; }

.hero { position: relative; padding-top: 48px; overflow: hidden; }
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(2px);
}
.hero::before {
  width: 520px;
  height: 520px;
  left: -210px;
  top: 100px;
  border: 1px solid rgba(0, 87, 193, .14);
  box-shadow: inset 0 0 90px rgba(22, 179, 255, .12);
  animation: orbitGlow 14s linear infinite;
}
.hero::after {
  width: 380px;
  height: 380px;
  right: -120px;
  top: 10px;
  background: radial-gradient(circle, rgba(22,179,255,.18), transparent 68%);
  animation: floatHalo 8s ease-in-out infinite;
}
.hero-inner { display: flex; flex-direction: column; align-items: center; text-align: center; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  color: var(--blue-dark);
  background: #d9e2ff;
  border-radius: 999px;
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
  font-size: 14px;
  animation: softPop .7s ease both;
}
.pill-dot { width: 8px; height: 8px; background: var(--blue); border-radius: 50%; box-shadow: 0 0 0 0 rgba(0,87,193,.42); animation: pulseDot 1.8s ease-out infinite; }
.hero h1 {
  margin: 24px 0 16px;
  max-width: 920px;
  font-size: 48px;
  line-height: 1.25;
  animation: riseIn .72s .08s ease both;
}
.hero h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--blue), #18a7ff 55%, #00a884);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-copy {
  margin: 0;
  max-width: 780px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.7;
  animation: riseIn .72s .16s ease both;
}
.hero-actions { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; justify-content: center; animation: riseIn .72s .24s ease both; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 50px;
  padding: 0 32px;
  border-radius: 8px;
  border: 1px solid var(--blue);
  font-weight: 800;
  line-height: 1.25;
  white-space: normal;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
}
.btn.primary { color: #fff; background: var(--blue); box-shadow: 0 12px 28px rgba(0, 87, 193, .22); }
.btn.secondary { color: var(--blue); background: #fff; }
.btn:hover { transform: translateY(-3px); }
.btn.primary:hover { background: #0068df; box-shadow: 0 16px 36px rgba(0, 87, 193, .3); }
.btn.secondary:hover { border-color: var(--cyan); box-shadow: 0 14px 30px rgba(22, 179, 255, .16); }
.api-copy .hero-actions {
  justify-content: flex-start;
  align-items: stretch;
  gap: 14px;
}
.api-copy .hero-actions .btn {
  min-width: 218px;
  min-height: 54px;
  padding: 0 24px;
}
.api-copy .hero-actions .btn.primary {
  min-width: 270px;
}
.hero-visual {
  position: relative;
  width: min(1024px, 100%);
  margin: 48px 0 0;
  overflow: hidden;
  border: 1px solid rgba(193, 198, 215, .45);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
  animation: visualLift .9s .28s ease both, subtleFloat 6s 1.2s ease-in-out infinite;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(247,249,252,.72));
  pointer-events: none;
  z-index: 2;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(255,255,255,.38), transparent),
    repeating-linear-gradient(180deg, rgba(255,255,255,.08) 0 1px, transparent 1px 5px);
  transform: translateX(-120%);
  animation: scanLight 5.2s ease-in-out infinite;
}
.hero-visual img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.trust { margin-top: 40px; color: #727786; opacity: .9; }
.trust p { margin: 0 0 20px; font-size: 12px; letter-spacing: .6px; }
.trust-words { display: flex; gap: 54px; justify-content: center; flex-wrap: wrap; font-size: 24px; font-weight: 800; }
.trust-words span { transition: color .22s ease, transform .22s ease; }
.trust-words span:hover { color: var(--blue); transform: translateY(-3px); }

.products { background: linear-gradient(180deg, var(--band), #eef5ff); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 { margin: 0 0 12px; font-size: 32px; line-height: 1.45; }
.section-head p { margin: 0; color: var(--muted); font-size: 16px; }
.section-head.compact-head { margin-bottom: 28px; }
.section-head.compact-head h2 { margin-bottom: 0; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.product-card {
  display: flex;
  flex-direction: column;
  min-height: 382px;
  padding: 32px;
  background: #fff;
  border: 1px solid rgba(193,198,215,.4);
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(22,34,51,.06);
  position: relative;
  overflow: hidden;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(22,179,255,.12), transparent 38%);
  opacity: 0;
  transition: opacity .28s ease;
  pointer-events: none;
}
.product-card:hover { transform: translateY(-8px); border-color: rgba(0,87,193,.28); box-shadow: 0 24px 46px rgba(22,34,51,.12); }
.product-card:hover::before { opacity: 1; }
.product-card.featured { border-top: 4px solid var(--blue); }
.card-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 8px;
  font-size: 26px;
  font-weight: 800;
  position: relative;
  z-index: 1;
  transition: transform .28s ease;
}
.product-card:hover .card-icon { transform: rotate(-4deg) scale(1.06); }
.card-icon.blue { color: var(--blue); background: #d9e2ff; }
.card-icon.warm { color: #af3d00; background: #ffdbcb; }
.card-icon.green { color: #087c62; background: #d8f3eb; }
.product-card h3 { margin: 24px 0 10px; font-size: 24px; }
.product-card p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tags span { padding: 5px 8px; background: #eceef1; border-radius: 4px; color: var(--muted); font-size: 12px; }
.card-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: auto; padding-top: 28px; }
.mini {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid #727786;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.mini.primary { color: #fff; background: var(--blue); border-color: var(--blue); }
.mini:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(22,34,51,.12); }
.elegant-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  min-width: 148px;
  min-height: 42px;
  margin-top: 22px;
  padding: 0 18px 0 20px;
  text-align: center;
  line-height: 1.25;
  border: 0;
  border-radius: 999px;
  background:
    linear-gradient(135deg, #0057c1, #0878e8) !important;
  box-shadow: 0 12px 24px rgba(0,87,193,.18);
  overflow: hidden;
}
.elegant-link::after {
  content: "→";
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--blue);
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  font-size: 14px;
  transition: transform .2s ease, background .2s ease;
}
.elegant-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(0,87,193,.24);
}
.elegant-link:hover::after {
  transform: translateX(2px);
  background: #fff;
}
.ref-card .elegant-link {
  margin-top: auto;
}
.ref-plan .elegant-link {
  width: 190px;
  min-height: 46px;
  margin-top: auto;
  padding: 0 18px;
  align-self: flex-start;
}
.ref-plan.dark .elegant-link {
  background: #fff !important;
  color: var(--blue);
  box-shadow: 0 14px 28px rgba(0,0,0,.16);
}
.ref-plan.dark .elegant-link::after {
  color: #fff;
  background: var(--blue);
}

.advantages { background: linear-gradient(180deg, #ffffff, var(--soft)); }
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-card {
  min-height: 240px;
  padding: 32px;
  background: #fff;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.adv-card:hover { transform: translateY(-6px); border-color: rgba(0,87,193,.22); box-shadow: 0 22px 44px rgba(22,34,51,.1); }
.adv-card strong { display: block; font-size: 24px; margin-bottom: 14px; }
.adv-card p { margin: 0; color: var(--muted); line-height: 1.7; }
.adv-wide {
  grid-column: span 2;
  display: flex;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(110deg, #fff 0 68%, #e8f1ff 68% 100%);
}
.adv-wide span { display: inline-block; margin-top: 22px; color: var(--blue); font-weight: 800; }
.secure { color: #fff; background: linear-gradient(135deg, #0057c1, #00306b); }
.secure p { color: rgba(255,255,255,.82); }
.signal-bars { display: flex; align-items: end; gap: 10px; min-width: 150px; opacity: .85; }
.signal-bars i { width: 26px; background: var(--blue); border-radius: 6px 6px 0 0; }
.signal-bars i:nth-child(1) { height: 54px; }
.signal-bars i:nth-child(2) { height: 90px; }
.signal-bars i:nth-child(3) { height: 126px; }
.signal-bars i:nth-child(4) { height: 164px; }
.signal-bars i { transform-origin: bottom; animation: barWave 1.7s ease-in-out infinite; }
.signal-bars i:nth-child(2) { animation-delay: .15s; }
.signal-bars i:nth-child(3) { animation-delay: .3s; }
.signal-bars i:nth-child(4) { animation-delay: .45s; }

.stats { padding: 56px 0; color: #fff; background: linear-gradient(135deg, #00306b, #006ee6); position: relative; overflow: hidden; }
.stats::before {
  content: "";
  position: absolute;
  inset: -80px 0;
  background:
    linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent),
    radial-gradient(circle at 30% 50%, rgba(22,179,255,.3), transparent 30%);
  animation: scanLight 7s ease-in-out infinite;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stats-grid > div { position: relative; z-index: 1; }
.stats strong { display: block; font-size: 40px; margin-bottom: 8px; text-shadow: 0 0 24px rgba(255,255,255,.28); }
.stats span { color: rgba(255,255,255,.78); }

.solutions { background: #fff; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.solution-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
  transition: transform .28s ease, box-shadow .28s ease, background .28s ease;
}
.solution-grid article:hover { transform: translateY(-6px); background: #fff; box-shadow: 0 22px 44px rgba(22,34,51,.1); }
.solution-grid span { color: var(--blue); font-weight: 900; }
.solution-grid h3 { margin: 14px 0; font-size: 24px; }
.solution-grid ul { margin: 0 0 22px; padding-left: 20px; color: var(--muted); line-height: 1.9; }
.solution-grid a { color: var(--blue); font-weight: 800; }

.custom { background: var(--band); }
.custom-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.custom-grid article {
  padding: 26px;
  min-height: 156px;
  background: #fff;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 12px;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.custom-grid article:hover { transform: translateY(-6px); border-color: rgba(0,87,193,.22); box-shadow: 0 20px 42px rgba(22,34,51,.1); }
.custom-grid b { font-size: 20px; }
.custom-grid p { color: var(--muted); line-height: 1.7; }
.api-card { grid-column: span 2; }
.api-card .mini { width: 150px; }

.contact { background: #fff; }
.contact-panel {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: center;
  padding: 48px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(0,61,136,.96), rgba(0,120,232,.94)),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: auto, 46px 46px;
  border-radius: 16px;
  box-shadow: 0 28px 70px rgba(0, 87, 193, .22);
  position: relative;
  overflow: hidden;
}
.contact-panel::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -90px;
  bottom: -130px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: inset 0 0 70px rgba(255,255,255,.12);
}
.contact-panel > * { position: relative; z-index: 1; }
.contact-panel h2 { margin: 0 0 14px; font-size: 34px; }
.contact-panel p { margin: 0; color: rgba(255,255,255,.82); line-height: 1.7; }
.manager-contact-card {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 20px;
  border: 1px solid rgba(255,255,255,.58);
  border-radius: 18px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 20px 48px rgba(0,34,82,.22);
}
.manager-contact-card img {
  width: 154px;
  height: 154px;
  padding: 8px;
  border: 1px solid rgba(193,198,215,.55);
  border-radius: 14px;
  background: #fff;
  object-fit: contain;
}
.manager-contact-card span {
  display: inline-flex;
  margin-bottom: 8px;
  padding: 6px 10px;
  color: var(--blue);
  border-radius: 999px;
  background: #edf5ff;
  font-size: 12px;
  font-weight: 900;
}
.manager-contact-card h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 26px;
}
.manager-contact-card a {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 22px;
  font-weight: 900;
}
.manager-contact-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.page-hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(circle at 78% 18%, rgba(22,179,255,.18), transparent 34%),
    linear-gradient(180deg, #f8fbff, #eef5ff);
}
.page-hero h1 {
  max-width: 860px;
  margin: 24px auto 16px;
  font-size: 46px;
  line-height: 1.22;
}
.page-hero p {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}
.product-center { background: #fff; }
.product-route {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.route-card {
  display: grid;
  gap: 16px;
  min-height: 320px;
  padding: 32px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(22,179,255,.12), transparent 45%),
    var(--soft);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.route-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0,87,193,.32);
  box-shadow: 0 24px 52px rgba(22,34,51,.12);
}
.route-card span { color: var(--blue); font-weight: 900; }
.route-card h2 { margin: 0; font-size: 28px; }
.route-card p { margin: 0; color: var(--muted); line-height: 1.8; }
.route-card b { align-self: end; color: var(--blue); }

.product-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 22%, rgba(22,179,255,.2), transparent 34%),
    linear-gradient(180deg, #f8fbff, #eef5ff);
}
.product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,87,193,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,87,193,.055) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.75), transparent);
}
.product-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 460px;
  align-items: center;
  gap: 72px;
}
.product-hero h1 {
  margin: 24px 0 18px;
  font-size: 52px;
  line-height: 1.15;
  animation: riseIn .72s .08s ease both;
}
.product-hero p {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
  animation: riseIn .72s .16s ease both;
}
.product-console {
  position: relative;
  min-height: 420px;
  padding: 28px;
  overflow: hidden;
  color: #fff;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(0,48,107,.94), rgba(0,118,230,.9)),
    repeating-linear-gradient(90deg, rgba(255,255,255,.06) 0 1px, transparent 1px 42px);
  box-shadow: 0 32px 70px rgba(0,87,193,.24);
  animation: visualLift .85s .18s ease both, subtleFloat 6s 1.1s ease-in-out infinite;
}
.product-console::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
  transform: translateX(-120%);
  animation: scanLight 5.4s ease-in-out infinite;
}
.console-top { display: flex; gap: 8px; margin-bottom: 48px; }
.console-top span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.72); }
.voice-wave,
.dashboard-lines,
.data-map {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  margin-bottom: 34px;
}
.voice-wave { gap: 14px; }
.voice-wave i {
  width: 16px;
  border-radius: 999px;
  background: linear-gradient(180deg, #fff, #68d8ff);
  animation: waveBeat 1.4s ease-in-out infinite;
}
.voice-wave i:nth-child(1) { height: 42px; }
.voice-wave i:nth-child(2) { height: 72px; animation-delay: .12s; }
.voice-wave i:nth-child(3) { height: 110px; animation-delay: .24s; }
.voice-wave i:nth-child(4) { height: 72px; animation-delay: .36s; }
.voice-wave i:nth-child(5) { height: 42px; animation-delay: .48s; }
.dashboard-lines { flex-direction: column; gap: 14px; align-items: stretch; }
.dashboard-lines i {
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255,255,255,.9), rgba(104,216,255,.45));
  animation: lineGrow 2s ease-in-out infinite;
}
.dashboard-lines i:nth-child(1) { width: 86%; }
.dashboard-lines i:nth-child(2) { width: 64%; animation-delay: .15s; }
.dashboard-lines i:nth-child(3) { width: 74%; animation-delay: .3s; }
.dashboard-lines i:nth-child(4) { width: 52%; animation-delay: .45s; }
.data-map { position: relative; }
.data-map i {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 8px rgba(255,255,255,.12), 0 0 28px rgba(104,216,255,.8);
  animation: pulseDot 1.8s ease-out infinite;
}
.data-map i:nth-child(1) { left: 22%; top: 18%; }
.data-map i:nth-child(2) { right: 24%; top: 28%; animation-delay: .2s; }
.data-map i:nth-child(3) { left: 44%; top: 50%; animation-delay: .4s; }
.data-map i:nth-child(4) { left: 28%; bottom: 18%; animation-delay: .6s; }
.data-map i:nth-child(5) { right: 20%; bottom: 14%; animation-delay: .8s; }
.console-row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-top: 1px solid rgba(255,255,255,.18);
}
.console-row b { color: rgba(255,255,255,.78); font-size: 14px; }
.console-row strong { font-size: 24px; }
.detail-section { background: #fff; }
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.detail-grid article {
  padding: 30px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 12px;
  background: var(--soft);
  transition: transform .28s ease, box-shadow .28s ease, background .28s ease;
}
.detail-grid article:hover { transform: translateY(-6px); background: #fff; box-shadow: 0 22px 44px rgba(22,34,51,.1); }
.detail-grid span { color: var(--blue); font-weight: 900; }
.detail-grid h2 { margin: 14px 0 12px; font-size: 24px; }
.detail-grid p { margin: 0; color: var(--muted); line-height: 1.8; }
.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.mode-grid article {
  display: grid;
  gap: 16px;
  min-height: 360px;
  padding: 40px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(22,179,255,.13), transparent 42%),
    #fff;
  box-shadow: 0 18px 44px rgba(22,34,51,.08);
}
.mode-grid span { color: var(--blue); font-size: 13px; font-weight: 900; text-transform: uppercase; }
.mode-grid h2 { margin: 0; font-size: 28px; }
.mode-grid p { margin: 0; color: var(--muted); line-height: 1.8; }
.mode-grid ul, .split-grid ul, .oem-zone ul { margin: 0; padding-left: 20px; color: var(--muted); line-height: 1.9; }
.module-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.module-grid article {
  min-height: 204px;
  padding: 25px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 14px;
  background: var(--soft);
  transition: transform .28s ease, box-shadow .28s ease, background .28s ease;
}
.module-grid article:hover { transform: translateY(-6px); background: #fff; box-shadow: 0 20px 42px rgba(22,34,51,.1); }
.module-grid .wide { grid-column: span 2; }
.module-grid h3 { margin: 0 0 12px; font-size: 20px; }
.module-grid p { margin: 0; color: var(--muted); line-height: 1.7; }
.split-section { background: linear-gradient(180deg, #fff, var(--soft)); }
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 72px;
}
.split-grid h2 { margin: 0 0 18px; font-size: 36px; line-height: 1.25; }
.split-grid p { color: var(--muted); line-height: 1.8; }
.device-stack {
  position: relative;
  min-height: 420px;
}
.device-stack span {
  position: absolute;
  border-radius: 28px;
  background: linear-gradient(135deg, #003d88, #17b6ff);
  box-shadow: 0 28px 66px rgba(0,87,193,.22);
}
.device-stack span:first-child { width: 58%; height: 78%; right: 4%; top: 0; }
.device-stack span:last-child { width: 35%; height: 58%; left: 12%; bottom: 0; background: linear-gradient(135deg, #101722, #0057c1); }
.oem-zone {
  color: #fff;
  background:
    linear-gradient(135deg, rgba(0,48,107,.96), rgba(0,120,232,.94)),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: auto, 48px 48px;
}
.oem-zone span { color: #9ee5ff; font-weight: 900; }
.oem-zone p, .oem-zone li { color: rgba(255,255,255,.82); }
.secure-cube {
  min-height: 360px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.24), rgba(255,255,255,.04)),
    radial-gradient(circle at 50% 35%, rgba(255,255,255,.32), transparent 38%);
  border: 1px solid rgba(255,255,255,.28);
  box-shadow: inset 0 0 80px rgba(255,255,255,.1), 0 28px 68px rgba(0,0,0,.22);
}
.workflow { background: linear-gradient(180deg, var(--band), #eef5ff); }
.flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.flow-grid a {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 24px;
  border: 1px solid rgba(193,198,215,.6);
  border-radius: 12px;
  background: #fff;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.flow-grid a::after {
  content: "";
  position: absolute;
  right: -16px;
  top: 50%;
  width: 32px;
  height: 1px;
  background: rgba(0,87,193,.3);
}
.flow-grid a:last-child::after { display: none; }
.flow-grid a:hover,
.flow-grid a.active {
  transform: translateY(-5px);
  border-color: rgba(0,87,193,.35);
  box-shadow: 0 18px 38px rgba(22,34,51,.1);
}
.flow-grid b { font-size: 20px; }
.flow-grid span { color: var(--muted); }
.flow-grid a.active { color: #fff; background: linear-gradient(135deg, var(--blue), var(--cyan)); }
.flow-grid a.active span { color: rgba(255,255,255,.82); }
.related-products { background: #fff; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.related-grid a {
  display: grid;
  gap: 12px;
  padding: 30px;
  min-height: 190px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(22,179,255,.1), transparent 42%),
    var(--soft);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.related-grid a:hover {
  transform: translateY(-6px);
  border-color: rgba(0,87,193,.3);
  box-shadow: 0 24px 46px rgba(22,34,51,.12);
}
.related-grid span { color: var(--blue); font-weight: 900; }
.related-grid b { font-size: 24px; }
.related-grid p { margin: 0; color: var(--muted); line-height: 1.7; }

.robot-hero {
  position: relative;
  min-height: calc(100vh - 80px);
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(255,122,69,.16), transparent 28%),
    radial-gradient(circle at 62% 62%, rgba(22,179,255,.18), transparent 34%);
}
.robot-hero::before {
  content: "";
  position: absolute;
  inset: 8% -12% auto auto;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  border: 1px solid rgba(0,87,193,.12);
  box-shadow: inset 0 0 90px rgba(22,179,255,.12);
  animation: orbitGlow 18s linear infinite;
}
.robot-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: 56px;
}
.robot-copy h1 {
  margin: 22px 0 18px;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}
.robot-copy h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--blue), #15a8ff 50%, var(--green));
  -webkit-background-clip: text;
  background-clip: text;
}
.robot-copy p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.85;
}
.robot-accent {
  border-color: #ff7a45;
  background: linear-gradient(135deg, #ff7a45, #ff9b42) !important;
  box-shadow: 0 16px 34px rgba(255,122,69,.24) !important;
}
.robot-visual {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
}
.glass-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.68);
  background: linear-gradient(145deg, rgba(255,255,255,.92), rgba(236,247,255,.72));
  box-shadow: 0 30px 80px rgba(0,87,193,.16);
  backdrop-filter: blur(18px);
}
.main-panel {
  width: min(440px, 100%);
  min-height: 360px;
  border-radius: 24px;
  padding: 26px;
  animation: visualLift .8s .15s ease both, subtleFloat 5.6s 1s ease-in-out infinite;
}
.main-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent, rgba(255,255,255,.72), transparent);
  transform: translateX(-130%);
  animation: scanLight 4s ease-in-out infinite;
}
.panel-top {
  display: flex;
  gap: 8px;
}
.panel-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c4d7f7;
}
.ai-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: 230px;
  height: 230px;
  margin: 38px auto 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(0,87,193,.12), transparent 58%),
    linear-gradient(135deg, rgba(0,87,193,.08), rgba(22,179,255,.08));
}
.ai-orbit i {
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(0,87,193,.22);
  border-radius: 50%;
}
.ai-orbit i:nth-child(2) { transform: rotate(60deg) scaleX(.72); }
.ai-orbit i:nth-child(3) { transform: rotate(120deg) scaleX(.72); }
.ai-orbit b {
  display: grid;
  place-items: center;
  width: 86px;
  height: 86px;
  color: #fff;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 16px 34px rgba(0,87,193,.26);
  font-size: 30px;
}
.wave-row {
  display: flex;
  justify-content: center;
  align-items: end;
  gap: 8px;
  height: 56px;
}
.wave-row i {
  width: 12px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
  transform-origin: bottom;
  animation: barWave 1.15s ease-in-out infinite;
}
.wave-row i:nth-child(2) { height: 48px; animation-delay: .12s; }
.wave-row i:nth-child(3) { height: 24px; animation-delay: .24s; }
.wave-row i:nth-child(4) { height: 52px; animation-delay: .36s; }
.wave-row i:nth-child(5) { height: 30px; animation-delay: .48s; }
.wave-row i:nth-child(6) { height: 42px; animation-delay: .6s; }
.floating-node {
  position: absolute;
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  color: var(--blue);
  border: 1px solid rgba(0,87,193,.18);
  border-radius: 18px;
  background: rgba(255,255,255,.88);
  box-shadow: 0 18px 40px rgba(22,34,51,.12);
  font-weight: 900;
  animation: subtleFloat 4.8s ease-in-out infinite;
}
.node-a { top: 42px; left: 24px; }
.node-b { right: 20px; top: 104px; animation-delay: .6s; }
.node-c { left: 86px; bottom: 72px; animation-delay: 1.1s; }
.robot-band { background: rgba(255,255,255,.72); }
.robot-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}
.robot-mode-card {
  position: relative;
  overflow: hidden;
  padding: 36px;
  border: 1px solid rgba(193,198,215,.52);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 20px 48px rgba(22,34,51,.08);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.robot-mode-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,87,193,.08), transparent 48%);
  pointer-events: none;
}
.robot-mode-card.api::before {
  background: linear-gradient(135deg, rgba(255,122,69,.13), transparent 48%);
}
.robot-mode-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0,87,193,.28);
  box-shadow: 0 26px 58px rgba(22,34,51,.13);
}
.mode-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  color: #fff;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-weight: 900;
}
.robot-mode-card.api .mode-icon {
  background: linear-gradient(135deg, #ff7a45, #ffb14a);
}
.robot-mode-card h3,
.robot-bento-card h3,
.robot-scenario-grid h3 {
  position: relative;
  z-index: 1;
  margin: 22px 0 10px;
  font-size: 24px;
}
.robot-mode-card p,
.robot-bento-card p,
.robot-scenario-grid p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}
.robot-mode-card ul {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
}
.robot-mode-card li {
  padding-left: 24px;
  color: #2b3443;
  background: linear-gradient(90deg, var(--green), var(--green)) 0 8px / 8px 8px no-repeat;
}
.robot-mode-card a {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  color: #fff;
  border-radius: 8px;
  background: var(--ink);
  font-weight: 800;
}
.robot-highlights {
  background:
    linear-gradient(180deg, #101722, #14263b);
  color: #fff;
}
.robot-highlights .section-head p,
.robot-highlights .section-head h2 {
  color: #fff;
}
.robot-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.robot-bento-card {
  min-height: 270px;
  padding: 28px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  background: rgba(255,255,255,.06);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.robot-bento-card.wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  align-items: center;
}
.robot-bento-card p { color: #b7c6d9; }
.bento-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--cyan);
  border-radius: 14px;
  background: rgba(22,179,255,.12);
  font-size: 24px;
}
.bento-icon.orange { color: #ffad6b; background: rgba(255,122,69,.14); }
.bento-icon.light { color: #fff; background: rgba(255,255,255,.14); }
.engine-map,
.funnel-chart {
  position: relative;
  min-height: 180px;
  border-radius: 18px;
  background:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 28px 28px;
}
.engine-map i {
  position: absolute;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 16px 30px rgba(0,0,0,.22);
}
.engine-map i:nth-child(1) { left: 18px; top: 24px; }
.engine-map i:nth-child(2) { right: 20px; top: 34px; background: linear-gradient(135deg, #ff7a45, #ffb14a); }
.engine-map i:nth-child(3) { left: 50%; bottom: 18px; transform: translateX(-50%); background: linear-gradient(135deg, var(--green), #40d6b1); }
.engine-map b {
  position: absolute;
  inset: 46px;
  border: 1px dashed rgba(255,255,255,.32);
  border-radius: 50%;
  animation: orbitGlow 12s linear infinite;
}
.funnel-chart {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 24px;
}
.funnel-chart i {
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, #16b3ff, #10a37f);
}
.funnel-chart i:nth-child(1) { width: 100%; }
.funnel-chart i:nth-child(2) { width: 78%; }
.funnel-chart i:nth-child(3) { width: 56%; }
.funnel-chart i:nth-child(4) { width: 34%; background: linear-gradient(90deg, #ff7a45, #ffb14a); }
.robot-scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.robot-scenario-grid article {
  overflow: hidden;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 20px 44px rgba(22,34,51,.08);
}
.robot-scenario-grid h3,
.robot-scenario-grid p {
  padding: 0 26px;
}
.robot-scenario-grid p {
  padding-bottom: 28px;
}
.scenario-art {
  height: 180px;
  background:
    linear-gradient(135deg, rgba(0,87,193,.1), rgba(22,179,255,.08)),
    #eef6ff;
}
.scenario-art.office {
  background:
    linear-gradient(135deg, rgba(0,87,193,.14), transparent),
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(0,87,193,.08) 38px 40px),
    #eef6ff;
}
.scenario-art.integration {
  background:
    radial-gradient(circle at 28% 45%, var(--blue) 0 18px, transparent 19px),
    radial-gradient(circle at 70% 34%, var(--cyan) 0 22px, transparent 23px),
    radial-gradient(circle at 58% 72%, var(--green) 0 16px, transparent 17px),
    linear-gradient(135deg, #eef6ff, #fff7f0);
}
.scenario-art.server {
  background:
    linear-gradient(90deg, transparent 20%, rgba(16,23,34,.12) 21% 23%, transparent 24%),
    linear-gradient(180deg, rgba(0,87,193,.14), transparent),
    #eef6ff;
}
.robot-cta {
  padding: 76px 0 92px;
  background: #fff;
}
.robot-cta-panel {
  position: relative;
  overflow: hidden;
  padding: 56px;
  color: #fff;
  border-radius: 24px;
  background:
    radial-gradient(circle at 82% 24%, rgba(255,255,255,.26), transparent 24%),
    linear-gradient(135deg, var(--blue), #0a8ee8 58%, var(--green));
  box-shadow: 0 30px 70px rgba(0,87,193,.22);
  text-align: center;
}
.robot-cta-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 48px);
}
.robot-cta-panel p {
  margin: 0 auto 26px;
  max-width: 620px;
  color: rgba(255,255,255,.84);
  line-height: 1.8;
}
.robot-cta-panel .btn.primary {
  background: #fff;
  color: var(--blue);
  border-color: #fff;
  box-shadow: none;
}

.ref-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 16%, rgba(0,87,193,.14), transparent 32%),
    radial-gradient(circle at 12% 78%, rgba(255,122,69,.12), transparent 30%),
    linear-gradient(180deg, #f8fbff, #eef5ff);
}
.ref-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 520px;
  align-items: center;
  gap: 64px;
}
.ref-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: var(--blue);
  border: 1px solid rgba(0,87,193,.18);
  border-radius: 999px;
  background: rgba(217,226,255,.45);
  font-size: 14px;
  font-weight: 800;
}
.ref-hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(38px, 4.8vw, 58px);
  line-height: 1.14;
}
.ref-hero h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
}
.ref-hero p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}
.ref-visual {
  position: relative;
  min-height: 440px;
  border: 1px solid rgba(193,198,215,.42);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 28px 70px rgba(22,34,51,.13);
  overflow: hidden;
}
.ref-visual img {
  width: 100%;
  height: 100%;
  min-height: 440px;
  object-fit: cover;
  transition: transform .7s ease;
}
.ref-visual:hover img { transform: scale(1.045); }
.ref-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,42,94,.26));
}
.ref-stat {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 1;
  padding: 14px 18px;
  color: var(--ink);
  border-radius: 12px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 14px 32px rgba(22,34,51,.16);
}
.ref-stat strong {
  display: block;
  color: var(--blue);
  font-size: 28px;
}
.download-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  padding: 24px;
}
.download-modal.is-open {
  display: grid;
}
.download-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,18,32,.58);
  backdrop-filter: blur(10px);
}
.download-modal-panel {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  gap: 30px;
  align-items: center;
  width: min(760px, 100%);
  padding: 34px;
  border: 1px solid rgba(255,255,255,.64);
  border-radius: 22px;
  background:
    radial-gradient(circle at 90% 10%, rgba(22,179,255,.18), transparent 28%),
    linear-gradient(135deg, #fff, #f6f9ff);
  box-shadow: 0 34px 90px rgba(10,18,32,.28);
  animation: softPop .24s ease both;
}
.download-modal-close {
  position: absolute;
  right: 16px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(193,198,215,.65);
  border-radius: 50%;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}
.download-modal-copy h2 {
  margin: 16px 0 12px;
  font-size: 32px;
}
.download-modal-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 17px;
}
.download-modal-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.download-modal-points span {
  padding: 8px 11px;
  color: var(--blue);
  border: 1px solid rgba(0,87,193,.16);
  border-radius: 999px;
  background: #edf5ff;
  font-size: 13px;
  font-weight: 800;
}
.download-modal-qr {
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 16px;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 34px rgba(22,34,51,.1);
}
.download-modal-qr img {
  width: 176px;
  height: 176px;
  object-fit: contain;
}
.download-modal-qr b {
  color: var(--ink);
  font-size: 16px;
}
.ref-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.ref-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(22,34,51,.06);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.ref-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,87,193,.28);
  box-shadow: 0 22px 48px rgba(22,34,51,.12);
}
.ref-card.wide { grid-column: span 2; }
.ref-card.full { grid-column: 1 / -1; }
.ref-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: #fff;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-weight: 900;
}
.ref-icon.orange { background: linear-gradient(135deg, #ff7a45, #ffb14a); }
.ref-icon.green { background: linear-gradient(135deg, var(--green), #45d9b8); }
.ref-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
}
.ref-card p,
.ref-card li {
  color: var(--muted);
  line-height: 1.75;
}
.ref-card ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 18px;
}
.ref-band { background: rgba(255,255,255,.72); }
.ref-split {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 64px;
}
.ref-split h2,
.city-page h2,
.article-body h2 {
  margin: 0 0 16px;
  font-size: 34px;
  line-height: 1.28;
}
.ref-split p { color: var(--muted); line-height: 1.8; }
.device-showcase {
  position: relative;
  min-height: 440px;
}
.device-showcase .laptop,
.device-showcase .phone {
  position: absolute;
  border: 1px solid rgba(193,198,215,.55);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 26px 56px rgba(22,34,51,.16);
  overflow: hidden;
}
.device-showcase .laptop { inset: 20px 0 auto 90px; height: 280px; }
.device-showcase .phone { left: 0; bottom: 20px; width: 170px; height: 300px; transform: rotate(-6deg); }
.device-showcase img { width: 100%; height: 100%; object-fit: cover; }
.ref-plans {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.ref-plan {
  display: flex;
  flex-direction: column;
  min-height: 360px;
  padding: 34px;
  border-radius: 18px;
  border: 1px solid rgba(193,198,215,.48);
  background: #fff;
  box-shadow: 0 18px 42px rgba(22,34,51,.08);
}
.ref-plan.dark {
  color: #fff;
  background:
    radial-gradient(circle at 82% 8%, rgba(255,255,255,.16), transparent 26%),
    linear-gradient(135deg, #004398, #0057c1 58%, #008188);
}
.ref-plan.dark p,
.ref-plan.dark li { color: rgba(255,255,255,.8); }
.ref-plan h3 { margin: 12px 0; font-size: 28px; }
.ref-plan p { color: var(--muted); line-height: 1.8; }
.ref-plan ul { display: grid; gap: 10px; margin: auto 0 24px; padding-left: 18px; }
.api-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 16%, rgba(22,179,255,.2), transparent 28%),
    radial-gradient(circle at 18% 22%, rgba(16,163,127,.12), transparent 26%),
    linear-gradient(180deg, #f8fbff, #eef5ff);
}
.api-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) 470px;
  align-items: center;
  gap: 64px;
}
.api-copy h1 {
  margin: 24px 0 18px;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.12;
}
.api-copy h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
}
.api-copy p {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 18px;
}
.api-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 28px;
}
.api-tags span {
  padding: 9px 13px;
  color: var(--blue);
  border: 1px solid rgba(0,87,193,.18);
  border-radius: 999px;
  background: rgba(255,255,255,.76);
  font-weight: 800;
  font-size: 13px;
}
.api-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
  color: var(--ink);
}
.api-trust b {
  position: relative;
  padding-left: 18px;
}
.api-trust b::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(16,163,127,.12);
}
.api-console {
  position: relative;
  min-height: 430px;
  padding: 24px;
  color: #dfeaff;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 24px;
  background:
    radial-gradient(circle at 78% 12%, rgba(22,179,255,.34), transparent 24%),
    linear-gradient(145deg, #101722, #0d3168 58%, #004398);
  box-shadow: 0 30px 80px rgba(0,67,152,.24);
  animation: visualLift .8s .12s ease both;
}
.api-console::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  pointer-events: none;
}
.console-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
}
.console-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.55);
}
.console-top b { margin-left: auto; color: rgba(255,255,255,.76); font-size: 13px; }
.code-line {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 12px;
  margin: 46px 0 18px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(255,255,255,.1);
}
.code-line em {
  color: #69e6b8;
  font-style: normal;
  font-weight: 900;
}
.code-block {
  position: relative;
  z-index: 1;
  padding: 18px;
  border-radius: 16px;
  background: rgba(4,10,24,.38);
  font-family: Consolas, monospace;
  font-size: 14px;
}
.code-block p { margin: 8px 0; color: #dfeaff; }
.api-flow-mini {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 22px;
}
.api-flow-mini i {
  padding: 12px 8px;
  border-radius: 12px;
  background: rgba(255,255,255,.12);
  text-align: center;
  font-style: normal;
  font-size: 12px;
}
.api-pain-grid,
.api-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.api-pain-grid article,
.api-service-grid article,
.api-case-grid article,
.api-core-card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 16px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 14px 34px rgba(22,34,51,.07);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.api-pain-grid article:hover,
.api-service-grid article:hover,
.api-case-grid article:hover,
.api-core-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,87,193,.28);
  box-shadow: 0 24px 52px rgba(22,34,51,.12);
}
.api-pain-grid span,
.api-case-grid span,
.api-service-grid b {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 10px;
  color: var(--blue);
  border-radius: 999px;
  background: #edf5ff;
  font-size: 12px;
  font-weight: 900;
}
.api-pain-grid h3,
.api-service-grid h3,
.api-case-grid h3,
.api-core-card h3 {
  margin: 0 0 10px;
  font-size: 21px;
}
.api-pain-grid p,
.api-service-grid p,
.api-case-grid p,
.api-core-card p,
.api-core-card li {
  color: var(--muted);
  line-height: 1.75;
}
.api-summary {
  background:
    radial-gradient(circle at 8% 16%, rgba(0,87,193,.08), transparent 28%),
    #fff;
}
.api-summary-card {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 48px;
  align-items: center;
  padding: 42px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.96), rgba(247,250,255,.92));
  box-shadow: 0 22px 54px rgba(22,34,51,.09);
}
.api-summary-card h2 { margin: 16px 0 0; font-size: 34px; line-height: 1.26; }
.api-summary-card p { margin: 0; color: var(--muted); line-height: 1.9; font-size: 17px; }
.api-core-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.api-core-card {
  display: flex;
  flex-direction: column;
  min-height: 480px;
}
.api-core-card.featured {
  color: #fff;
  background:
    radial-gradient(circle at 84% 8%, rgba(255,255,255,.2), transparent 26%),
    linear-gradient(135deg, #004398, #0057c1 56%, #008188);
}
.api-core-card.featured p,
.api-core-card.featured li { color: rgba(255,255,255,.82); }
.api-core-card ul {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding-left: 20px;
}
.api-step-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.api-step-grid article {
  position: relative;
  min-height: 180px;
  padding: 24px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(22,34,51,.07);
}
.api-step-grid b {
  display: block;
  color: var(--blue);
  font-size: 28px;
}
.api-step-grid h3 { margin: 18px 0 8px; }
.api-step-grid p { margin: 0; color: var(--muted); line-height: 1.7; }
.api-case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.api-case-grid p { margin: 10px 0 0; }
.api-advantage { background: linear-gradient(180deg, #fff, var(--soft)); }
.city-index {
  padding: 30px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 38px rgba(22,34,51,.07);
}
.city-index.expanded {
  display: grid;
  gap: 18px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.city-story {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 28px;
  align-items: start;
}
.city-panel {
  padding: 28px;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 20px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 18px 44px rgba(22,34,51,.08);
}
.city-panel h2,
.city-panel h3,
.city-case-card h3 { margin: 0 0 14px; }
.city-panel p,
.city-case-card p,
.city-case-card li,
.city-note-list li {
  color: var(--muted);
  line-height: 1.75;
}
.city-panel p { margin: 0 0 14px; }
.city-panel p:last-child { margin-bottom: 0; }
.city-list,
.city-note-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.city-list li,
.city-note-list li {
  padding-left: 18px;
  position: relative;
}
.city-list li::before,
.city-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
}
.city-case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.city-case-card {
  padding: 26px;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,250,255,.96));
  box-shadow: 0 16px 40px rgba(22,34,51,.08);
}
.city-case-card b {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--blue);
  background: rgba(0,87,193,.1);
}
.city-case-card ul {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding-left: 18px;
}
.city-note-band {
  background:
    radial-gradient(circle at 12% 10%, rgba(0,87,193,.08), transparent 28%),
    linear-gradient(180deg, #fff, var(--soft));
}
.city-region {
  overflow: hidden;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 20px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 12px 28px rgba(22,34,51,.06);
  content-visibility: auto;
  contain-intrinsic-size: 220px 680px;
}
.city-region:not([open]) {
  contain-intrinsic-size: 88px;
}
.region-title {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 26px;
  color: #fff;
  background:
    radial-gradient(circle at 88% 28%, rgba(255,255,255,.22), transparent 28%),
    linear-gradient(135deg, var(--blue), #0b8ee8 58%, #16b9d5);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.region-title::-webkit-details-marker { display: none; }
.region-title::after {
  content: "+";
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-left: auto;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  font-size: 20px;
  font-weight: 700;
}
.city-region[open] .region-title::after { content: "-"; }
.region-title span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 50%;
  background: rgba(255,255,255,.16);
  font-weight: 800;
  font-size: 14px;
}
.region-title h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0;
}
.province-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 24px;
}
.province-card {
  padding: 20px;
  border: 1px solid rgba(193,198,215,.42);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(247,250,255,.96), rgba(255,255,255,.98));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
  content-visibility: auto;
  contain-intrinsic-size: 120px 220px;
}
.province-card h4 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 18px;
}
.province-card .city-links { gap: 8px; }
.province-card .city-links a {
  padding: 7px 11px;
  border: 1px solid rgba(193,198,215,.45);
  background: #fff;
  color: #4d5b6d;
  font-size: 13px;
}
.province-card .city-links a[href="#join"] {
  color: #637083;
  background: rgba(247,250,255,.9);
}
.province-card .city-links a[href="#join"]:hover {
  color: var(--blue);
  border-color: rgba(29,111,245,.24);
}
.city-group { margin-top: 24px; }
.city-group h3 {
  margin: 0 0 14px;
  padding-bottom: 10px;
  color: var(--blue);
  border-bottom: 1px solid rgba(193,198,215,.55);
}
.city-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.city-links a {
  padding: 9px 15px;
  color: var(--muted);
  border-radius: 8px;
  background: var(--soft);
  transition: background .22s ease, color .22s ease, transform .22s ease;
}
.city-links a:hover {
  color: var(--blue);
  background: #edf5ff;
  transform: translateY(-2px);
}
.news-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}
.news-layout.refined {
  align-items: start;
}
.news-hero {
  padding-bottom: 68px;
}
.news-hero strong {
  color: var(--blue);
}
.news-main {
  min-width: 0;
}
.news-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(193,198,215,.55);
}
.news-toolbar h2 {
  margin: 12px 0 0;
  font-size: 32px;
}
.news-toolbar p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.news-list {
  display: grid;
  gap: 22px;
}
.news-search {
  position: relative;
  max-width: 560px;
  margin: 28px auto 0;
}
.news-search input {
  width: 100%;
  min-height: 52px;
  padding: 0 56px 0 22px;
  border: 1px solid rgba(193,198,215,.8);
  border-radius: 999px;
  font: inherit;
  box-shadow: 0 12px 28px rgba(22,34,51,.08);
}
.news-search button {
  position: absolute;
  right: 6px;
  top: 6px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
}
.news-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  overflow-x: auto;
}
.news-tabs a {
  padding: 10px 16px;
  color: var(--muted);
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(193,198,215,.55);
}
.news-tabs a.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}
.news-item {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 0;
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(22,34,51,.07);
  transition: transform .28s ease, box-shadow .28s ease;
}
.news-thumb {
  display: block;
  min-height: 100%;
  overflow: hidden;
  background: var(--band);
}
.news-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 48px rgba(22,34,51,.12);
}
.news-item img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  transition: transform .6s ease;
}
.news-item:hover img { transform: scale(1.045); }
.news-item div { padding: 26px; }
.news-item .elegant-link {
  min-width: 118px;
  margin-top: 10px;
}
.news-item h2 {
  margin: 12px 0;
  font-size: 24px;
  line-height: 1.35;
}
.news-item h2 a {
  transition: color .2s ease;
}
.news-item h2 a:hover {
  color: var(--blue);
}
.news-item p { color: var(--muted); line-height: 1.75; }
.news-empty {
  padding: 34px;
  color: var(--muted);
  border: 1px dashed rgba(114,119,134,.45);
  border-radius: 16px;
  background: rgba(255,255,255,.72);
  text-align: center;
}
.news-pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
  flex-wrap: wrap;
}
.news-pagination button {
  min-width: 42px;
  height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(193,198,215,.75);
  border-radius: 999px;
  color: var(--muted);
  background: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.news-pagination button:hover:not(:disabled),
.news-pagination button.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0,87,193,.18);
}
.news-pagination button:disabled {
  opacity: .42;
  cursor: not-allowed;
}
.tag {
  display: inline-flex;
  padding: 5px 9px;
  color: var(--blue);
  border-radius: 6px;
  background: #edf5ff;
  font-size: 12px;
  font-weight: 800;
}
.meta { color: #7f8da3; font-size: 13px; }
.news-sidebar {
  display: grid;
  gap: 18px;
  align-content: start;
  position: sticky;
  top: 104px;
}
.news-widget {
  padding: 18px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 14px;
  background: #fff;
}
.news-widget h3 { margin: 0 0 12px; font-size: 17px; }
.news-widget p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
}
.news-widget a {
  display: block;
  padding: 10px 0;
  color: var(--muted);
  border-top: 1px solid rgba(193,198,215,.35);
  font-size: 14px;
  line-height: 1.5;
}
.latest-news-card {
  overflow: hidden;
  background:
    radial-gradient(circle at 100% 0, rgba(22,179,255,.12), transparent 38%),
    #fff;
}
.latest-news-list {
  display: grid;
  gap: 12px;
}
.latest-news-item {
  display: grid !important;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  padding: 14px 0 !important;
  border-top: 1px solid rgba(193,198,215,.36);
}
.latest-news-item span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--blue);
  border-radius: 50%;
  background: #edf5ff;
  font-size: 12px;
  font-weight: 900;
}
.latest-news-item b {
  display: block;
  color: var(--ink);
  line-height: 1.45;
  transition: color .2s ease;
}
.latest-news-item small {
  display: block;
  margin-top: 6px;
  color: #7f8da3;
}
.latest-news-item:hover b {
  color: var(--blue);
}
.news-guide-card {
  background: linear-gradient(180deg, #fff, #f6f9ff);
}
.article-page {
  background: #fff;
}
.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 820px) 220px;
  justify-content: center;
  gap: 30px;
  align-items: start;
}
.article-body {
  padding: 44px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(22,34,51,.08);
}
.article-body h1 {
  margin: 12px 0 16px;
  font-size: 38px;
  line-height: 1.28;
}
.article-body p {
  color: var(--muted);
  line-height: 1.95;
  font-size: 17px;
}
.article-body img {
  width: 100%;
  border-radius: 14px;
  margin: 28px 0;
}
.city-page .ref-hero-grid { grid-template-columns: 1fr 460px; }
.city-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.city-metrics div {
  padding: 24px;
  text-align: center;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 16px;
  background: #fff;
}
.city-metrics strong {
  display: block;
  color: var(--blue);
  font-size: 30px;
}
.city-industry-bridge {
  padding: 30px;
  border: 1px solid rgba(193,198,215,.5);
  border-radius: 22px;
  background:
    radial-gradient(circle at 92% 18%, rgba(42,226,182,.14), transparent 26%),
    linear-gradient(135deg, rgba(255,255,255,.98), rgba(247,250,255,.95));
  box-shadow: 0 18px 46px rgba(22,34,51,.08);
}
.city-industry-bridge h2 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.35;
}
.city-industry-bridge p {
  max-width: 960px;
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
  font-size: 17px;
}
.industry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0;
}
.industry-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(0,87,193,.16);
  border-radius: 999px;
  color: #074886;
  background: rgba(0,87,193,.08);
  font-weight: 700;
}
.city-service-chain {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.city-service-chain article {
  padding: 18px;
  border: 1px solid rgba(193,198,215,.45);
  border-radius: 16px;
  background: rgba(255,255,255,.88);
}
.city-service-chain b {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
}
.city-service-chain span {
  color: var(--muted);
  line-height: 1.65;
}

.side-nav {
  position: fixed;
  right: 24px;
  top: 50%;
  z-index: 10;
  display: grid;
  gap: 8px;
  transform: translateY(-50%);
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 40px rgba(22,34,51,.16);
  animation: sideIn .6s .6s ease both;
}
.side-nav a {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: var(--blue);
}
.side-nav a:hover { background: #edf5ff; }
.side-nav a:hover::before {
  content: attr(data-tip);
  position: absolute;
  right: 48px;
  padding: 5px 8px;
  color: #fff;
  background: var(--ink);
  border-radius: 6px;
  white-space: nowrap;
  font-size: 12px;
}

.site-footer { padding: 64px 0 24px; color: #dbe7ff; background: #101722; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 48px; }
.footer-grid h2, .footer-grid h3 { margin: 0 0 18px; color: #fff; }
.footer-grid p { max-width: 300px; margin: 0; line-height: 1.7; color: #a9b7cc; }
.footer-grid a { display: block; margin: 12px 0; color: #a9b7cc; }
.copyright { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: #7f8da3; text-align: center; }

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  color: #a9b7cc;
}

.beian-link::before {
  content: "";
  width: 16px;
  height: 16px;
  background: url("../images/beian-icon.png") center / contain no-repeat;
}

.beian-link:hover {
  color: #fff;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes visualLift {
  from { opacity: 0; transform: translateY(34px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes softPop {
  from { opacity: 0; transform: translateY(-8px) scale(.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes subtleFloat {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}
@keyframes floatHalo {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-18px, 18px, 0) scale(1.04); }
}
@keyframes orbitGlow {
  to { transform: rotate(360deg); }
}
@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(0,87,193,.42); }
  70% { box-shadow: 0 0 0 9px rgba(0,87,193,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,87,193,0); }
}
@keyframes scanLight {
  0% { transform: translateX(-120%); opacity: 0; }
  20%, 55% { opacity: 1; }
  100% { transform: translateX(120%); opacity: 0; }
}
@keyframes barWave {
  0%, 100% { transform: scaleY(.82); opacity: .68; }
  50% { transform: scaleY(1); opacity: 1; }
}
@keyframes sideIn {
  from { opacity: 0; transform: translate(20px, -50%); }
  to { opacity: 1; transform: translate(0, -50%); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 920px) {
  .container { width: min(100% - 32px, 720px); }
  .section-pad { padding: 64px 0; }
  .nav { grid-template-columns: 1fr auto; }
  .nav-toggle {
    display: inline-grid;
    gap: 5px;
    width: 42px;
    height: 42px;
    place-content: center;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 8px;
  }
  .nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }
  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: grid;
    gap: 10px;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 18px 40px rgba(22,34,51,.14);
  }
  .nav-dropdown {
    display: grid;
    gap: 8px;
  }
  .nav-dropdown-toggle {
    width: 100%;
  }
  .nav-dropdown-menu {
    position: static;
    display: grid;
    min-width: 0;
    padding: 6px 0 6px 14px;
    border: 0;
    border-left: 2px solid #d9e2ff;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    backdrop-filter: none;
  }
  .nav-dropdown-menu::before,
  .nav-dropdown.active .nav-dropdown-toggle::before {
    display: none;
  }
  .nav-dropdown-menu a {
    padding: 8px 10px;
    background: #f7f9fc;
  }
  .hero h1 { font-size: 34px; }
  .hero-copy { font-size: 17px; }
  .trust-words { gap: 22px; font-size: 20px; }
  .product-grid, .solution-grid, .custom-grid, .product-route, .module-grid { grid-template-columns: 1fr; }
  .product-hero-grid, .detail-grid, .flow-grid, .related-grid, .mode-grid, .split-grid, .robot-hero-grid, .robot-mode-grid, .robot-scenario-grid, .ref-hero-grid, .ref-split, .ref-plans, .news-layout, .article-shell, .api-hero-grid, .api-summary-card, .api-core-grid, .api-case-grid, .city-story, .city-case-grid, .city-service-chain { grid-template-columns: 1fr; }
  .api-pain-grid, .api-service-grid { grid-template-columns: repeat(2, 1fr); }
  .api-step-grid { grid-template-columns: repeat(2, 1fr); }
  .api-console { min-height: 380px; }
  .product-hero h1 { font-size: 38px; }
  .product-console { min-height: 360px; }
  .bento, .robot-bento, .ref-bento { grid-template-columns: 1fr !important; }
  .adv-wide, .api-card { grid-column: span 1; }
  .ref-card.wide, .ref-card.full { grid-column: span 1; }
  .ref-visual, .ref-visual img { min-height: 340px; }
  .download-modal-panel { grid-template-columns: 1fr; }
  .device-showcase { min-height: 380px; }
  .news-item { grid-template-columns: 1fr; }
  .city-metrics { grid-template-columns: 1fr; }
  .province-grid { grid-template-columns: 1fr; padding: 18px; }
  .region-title { padding: 18px; }
  .robot-bento-card.wide { grid-column: span 1; grid-template-columns: 1fr; }
  .robot-hero { min-height: auto; }
  .robot-visual { min-height: 420px; }
  .robot-copy h1 { font-size: 42px; }
  .robot-copy p { font-size: 17px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-panel { grid-template-columns: 1fr; padding: 32px; }
  .manager-contact-card { width: min(100%, 520px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .side-nav { display: none; }
  .nav-links a.active::after { display: none; }
  .page-hero h1 { font-size: 36px; }
  .module-grid .wide { grid-column: span 1; }
}

@media (max-width: 560px) {
  .hero { padding-top: 32px; }
  .hero h1 { font-size: 30px; }
  .hero-actions, .card-actions { display: grid; width: 100%; }
  .api-copy .hero-actions {
    justify-content: stretch;
    gap: 12px;
  }
  .api-copy .hero-actions .btn,
  .api-copy .hero-actions .btn.primary {
    min-width: 0;
    width: 100%;
    min-height: 52px;
    padding: 0 18px;
  }
  .ref-plan .elegant-link {
    width: 100%;
    align-self: stretch;
  }
  .copyright { display: grid; gap: 8px; justify-items: center; }
  .beian-link { margin-left: 0; }
  .btn, .mini { width: 100%; }
  .product-card, .adv-card, .solution-grid article, .custom-grid article { padding: 24px; }
  .detail-grid article, .related-grid a { padding: 24px; }
  .mode-grid article, .route-card { padding: 24px; }
  .ref-card, .ref-plan, .article-body, .city-index { padding: 24px; }
  .api-pain-grid, .api-service-grid, .api-step-grid { grid-template-columns: 1fr; }
  .api-summary-card, .api-core-card, .api-pain-grid article, .api-service-grid article, .api-case-grid article { padding: 22px; }
  .api-flow-mini { grid-template-columns: repeat(2, 1fr); }
  .api-copy h1 { font-size: 34px; }
  .api-copy p { font-size: 16px; }
  .download-modal { padding: 16px; }
  .download-modal-panel { padding: 26px 20px 22px; }
  .download-modal-copy h2 { font-size: 26px; }
  .download-modal-copy p { font-size: 15px; }
  .download-modal-qr img { width: 154px; height: 154px; }
  .city-index.expanded { padding: 0; }
  .province-card { padding: 16px; }
  .province-card .city-links a { padding: 7px 10px; }
  .ref-hero h1 { font-size: 34px; }
  .ref-split h2, .city-page h2, .article-body h2 { font-size: 28px; }
  .device-showcase { min-height: 330px; }
  .device-showcase .laptop { left: 38px; height: 220px; }
  .device-showcase .phone { width: 128px; height: 230px; }
  .article-body h1 { font-size: 30px; }
  .robot-mode-card, .robot-bento-card { padding: 24px; }
  .robot-copy h1 { font-size: 34px; }
  .robot-visual { min-height: 360px; }
  .main-panel { min-height: 310px; padding: 22px; }
  .ai-orbit { width: 190px; height: 190px; }
  .floating-node { width: 62px; height: 62px; border-radius: 14px; font-size: 13px; }
  .node-a { left: 0; top: 24px; }
  .node-b { right: 0; top: 84px; }
  .node-c { left: 28px; bottom: 36px; }
  .robot-cta-panel { padding: 36px 22px; border-radius: 18px; }
  .split-grid h2 { font-size: 28px; }
  .device-stack, .secure-cube { min-height: 280px; }
  .flow-grid a::after { display: none; }
  .stats-grid, .footer-grid { grid-template-columns: 1fr; }
  .contact-panel h2 { font-size: 28px; }
  .manager-contact-card {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    padding: 18px;
  }
  .manager-contact-card img {
    width: 168px;
    height: 168px;
  }
}