/* Artxpro Global — light + blue hero (NOT dark SaaS shell) */
:root {
  --bg: #f7f9fc;
  --bg-soft: #eef3fb;
  --white: #ffffff;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #dbe4f0;
  --blue: #0b5fff;
  --blue-deep: #0847c7;
  --blue-soft: #e8f0ff;
  --purple: #7c3aed;
  --purple-soft: #f3e8ff;
  --cyan: #06b6d4;
  --grad: linear-gradient(135deg, #0b5fff 0%, #6366f1 50%, #7c3aed 100%);
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --font: "Inter", system-ui, sans-serif;
  --display: "Plus Jakarta Sans", "Inter", system-ui, sans-serif;
  --max: 1160px;
  --header-h: 80px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul { list-style: none; }
.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(247, 249, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.site-header.is-scrolled {
  background: rgba(247, 249, 252, 0.97);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}
.header-row {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-right: auto;
  flex-shrink: 0;
  max-height: calc(var(--header-h) - 12px);
}
/* 透明底 logo：放大并与顶栏底色融为一体，无白底方块 */
.logo-img {
  height: 52px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  object-position: left center;
  display: block;
  background: transparent;
  border-radius: 0;
  padding: 0;
  mix-blend-mode: multiply; /* 残余浅底与顶栏 #f7f9fc 融合 */
}
.logo.has-logo-img .logo-mark,
.logo.has-logo-img .logo-text {
  display: none;
}
.logo-foot {
  margin-bottom: 0.75rem;
}
.logo-foot .logo-img {
  height: 56px;
  max-width: 240px;
  mix-blend-mode: multiply;
  filter: none;
  background: transparent;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--grad);
  box-shadow: 0 8px 18px rgba(11, 95, 255, 0.28);
  position: relative;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 2px solid rgba(255,255,255,0.9);
  border-radius: 6px;
  border-bottom-color: transparent;
  transform: rotate(45deg);
}
.logo-text {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.logo-text em {
  font-style: normal;
  font-weight: 600;
  color: var(--blue);
}
.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s;
}
.nav a:hover { color: var(--blue); }
.nav-cta {
  padding: 0.5rem 1rem !important;
  border-radius: 999px;
  background: var(--blue);
  color: #fff !important;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--blue-deep); color: #fff !important; }
.header-phone {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue);
  white-space: nowrap;
}
.lang-slot {
  display: flex;
  align-items: center;
  margin-left: 0.15rem;
}
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--ink); display: block; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 28px rgba(11, 95, 255, 0.28);
}
.btn-primary:hover { background: var(--blue-deep); }
.btn-outline {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-light {
  background: #fff;
  color: var(--blue-deep);
  font-weight: 800;
}

/* Hero */
.hero {
  position: relative;
  padding: 4.5rem 0 4rem;
  overflow: hidden;
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(11, 95, 255, 0.16), transparent 60%),
    radial-gradient(700px 380px at 90% 10%, rgba(124, 58, 237, 0.12), transparent 55%),
    linear-gradient(180deg, #f0f5ff 0%, var(--bg) 70%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  animation: float 10s ease-in-out infinite;
}
.orb-a {
  width: 280px; height: 280px;
  background: rgba(11, 95, 255, 0.35);
  top: 8%; left: 55%;
}
.orb-b {
  width: 220px; height: 220px;
  background: rgba(124, 58, 237, 0.28);
  bottom: 5%; right: 8%;
  animation-delay: -3s;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}
.grid-fade {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 95, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 95, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 20%, transparent 90%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.85rem;
}
.eyebrow.light { color: rgba(255,255,255,0.8); }
.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.1rem, 4.4vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--ink);
}
.grad {
  display: block;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 36rem;
  margin-bottom: 1.5rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.35rem; }
.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hero-chips li {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--grad);
}
.hero-card-top {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 1.1rem;
}
.live {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.18);
  animation: pulse 1.6s ease infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.35); }
  50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}
.metric { margin-bottom: 1rem; }
.metric-label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.metric strong,
.metric-row strong {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--blue);
}
.metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.bars {
  display: flex;
  align-items: flex-end;
  gap: 0.45rem;
  height: 90px;
  margin-bottom: 1rem;
  padding: 0.5rem;
  border-radius: 12px;
  background: var(--bg-soft);
}
.bars span {
  flex: 1;
  height: var(--h);
  border-radius: 6px 6px 2px 2px;
  background: var(--grad);
  opacity: 0.85;
  animation: barIn 1.2s ease both;
}
@keyframes barIn {
  from { transform: scaleY(0.3); opacity: 0.3; }
  to { transform: scaleY(1); opacity: 0.85; }
}
.hero-card-note {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Strip */
.strip {
  border-block: 1px solid var(--line);
  background: var(--white);
  padding: 1rem 0;
}
.strip-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  justify-content: center;
  font-family: var(--display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.strip-inner span { position: relative; }
.strip-inner span:not(:last-child)::after {
  content: "·";
  margin-left: 1.25rem;
  color: #cbd5e1;
}

/* Service card image */
.svc-icon {
  overflow: hidden;
}
.svc-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}
.svc.has-image .svc-icon {
  width: 100%;
  height: 140px;
  border-radius: 12px;
  margin-bottom: 0.85rem;
  background: #0f172a;
}

/* API offline banner */
.artx-api-banner {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 2147483645;
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
  max-width: min(92vw, 420px);
  text-align: center;
  line-height: 1.4;
}
.artx-api-banner button {
  margin-left: 8px;
  border: 0;
  background: #38bdf8;
  color: #0f172a;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

/* Ops compare */
.ops-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
}
.ops-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.5rem 1.35rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}
.ops-card h3 {
  font-family: var(--display);
  font-size: 1.05rem;
  margin: 0 0 0.85rem;
  color: var(--ink);
}
.ops-card ul { margin: 0; padding-left: 1.1rem; color: var(--ink-soft); line-height: 1.7; }
.ops-card-accent {
  background: linear-gradient(160deg, #eff6ff 0%, #fff 55%);
  border-color: rgba(37, 99, 235, 0.2);
}
.ops-card-accent h3 { color: var(--blue-deep); }

/* Hotels gallery */
.hotel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.hotel-card {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid var(--line);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}
.hotel-card img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.hotel-card figcaption {
  padding: 0.65rem 0.85rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: #e2e8f0;
  background: #0f172a;
}
.hotel-note {
  text-align: center;
  margin-top: 1.25rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* Partners */
.partners-frame {
  max-width: 720px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}
.partners-frame img {
  display: block;
  width: 100%;
  height: auto;
}

/* Mission / Vision */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}
.mv-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.5rem 1.4rem;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}
.mv-card h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  margin: 0.2rem 0 0.75rem;
}
.mv-card p:last-child {
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
  font-size: 0.95rem;
}
.legal-name {
  font-size: 0.88rem;
  color: var(--blue);
  font-weight: 600;
  margin: -0.35rem 0 0.85rem;
}

/* Hotel Peace */
.peace-box {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(145deg, #0b1f3a 0%, #1e3a5f 55%, #2563eb 120%);
  color: #f8fafc;
  border-radius: 24px;
  padding: 2.75rem 1.75rem;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.22);
}
.peace-box h2 {
  color: #fff;
  margin-bottom: 0.85rem;
}
.peace-box .peace-body {
  color: rgba(248, 250, 252, 0.88);
  line-height: 1.8;
  max-width: 640px;
  margin: 0 auto;
  font-size: 1rem;
}
.peace-box .eyebrow.light { color: #93c5fd; }

/* Pain checklist */
.pain-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 720px;
  display: grid;
  gap: 0.75rem;
}
.pain-list li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1.1rem 0.95rem 2.75rem;
  position: relative;
  font-weight: 600;
  color: var(--ink);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}
.pain-list li::before {
  content: "?";
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.solutions-note {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Sections */
.section { padding: 5rem 0; }
.section-soft { background: var(--bg-soft); }

@media (max-width: 900px) {
  .ops-grid,
  .mv-grid,
  .hotel-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .ops-grid,
  .mv-grid,
  .hotel-grid { grid-template-columns: 1fr; }
  .hotel-card img { height: 180px; }
}
.section-head { max-width: 640px; margin-bottom: 2.25rem; }
.section-head.center { margin-inline: auto; text-align: center; }
h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.75rem, 3.2vw, 2.45rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 0.75rem;
  color: var(--ink);
}
.section-lead, .lead-sm { color: var(--ink-soft); }

.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}
.svc {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s, border-color 0.25s;
}
.svc:hover { transform: translateY(-4px); border-color: #b9cdf8; }
.svc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 32px;
  padding: 0 0.65rem;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
}
.svc h3 {
  font-family: var(--display);
  font-size: 1.1rem;
  margin-bottom: 0.45rem;
}
.svc p { color: var(--ink-soft); font-size: 0.95rem; }

.sol-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
}
.sol {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
}
.sol h3 {
  font-family: var(--display);
  font-size: 0.98rem;
  margin-bottom: 0.35rem;
}
.sol p { color: var(--muted); font-size: 0.9rem; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.stat {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.15rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat strong {
  display: block;
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}
.stat strong::after { content: "+"; font-size: 0.7em; }
.stat:last-child strong::after { content: "%"; }
.stat span {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}
.stat p { color: var(--muted); font-size: 0.88rem; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}
.about-copy p { color: var(--ink-soft); margin-bottom: 1rem; }
.about-copy .btn { margin-top: 0.5rem; }
.about-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.about-panel h3 {
  font-family: var(--display);
  margin-bottom: 0.85rem;
  font-size: 1.05rem;
}
.about-panel li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  padding-left: 1rem;
  position: relative;
}
.about-panel li::before {
  content: "";
  position: absolute;
  left: 0; top: 1.05rem;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple);
}
.about-panel li:last-child { border-bottom: 0; }

/* Industries */
.ind-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.ind {
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--line);
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--ink-soft);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}
.ind:hover {
  border-color: #b9cdf8;
  color: var(--blue);
}

/* FAQ */
.faq-wrap { max-width: 820px; }
.faq-list { display: grid; gap: 0.75rem; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.35rem 1.1rem;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.03);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-weight: 700;
  padding: 0.95rem 0;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--blue);
  font-weight: 800;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p {
  color: var(--ink-soft);
  padding: 0 0 1rem;
  font-size: 0.96rem;
}

/* CTA */
.cta { padding-top: 1rem; }
.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 2.25rem 2rem;
  border-radius: 22px;
  background: var(--grad);
  color: #fff;
  box-shadow: 0 24px 50px rgba(11, 95, 255, 0.28);
}
.cta-box h2 { color: #fff; margin-bottom: 0.4rem; }
.cta-box p { color: rgba(255,255,255,0.88); max-width: 36rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.contact-meta {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.5rem;
}
.contact-meta a {
  font-family: var(--display);
  font-weight: 700;
  color: var(--blue);
  font-size: 1.05rem;
}
.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.85rem;
}
.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  font-family: var(--display);
}
.contact-form input,
.contact-form textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  background: var(--bg);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(11, 95, 255, 0.25);
  border-color: var(--blue);
}
.form-note { color: var(--blue-deep); font-weight: 600; }

/* Footer — 与主页面同色浅底，Logo 原色不失真 */
.site-footer {
  background: var(--bg);
  color: var(--ink-soft);
  padding: 3.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
}
.logo-foot .logo-text { color: var(--ink); }
.logo-foot { margin-bottom: 0.75rem; }
.site-footer > .container > .footer-grid > div:first-child > p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 16rem;
}
.site-footer h4 {
  font-family: var(--display);
  color: var(--ink);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.site-footer li { margin-bottom: 0.4rem; font-size: 0.92rem; color: var(--ink-soft); }
.site-footer a { color: var(--ink-soft); transition: color 0.2s; }
.site-footer a:hover { color: var(--blue); }
.site-footer .muted {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

/* 通用 muted（页内其他位置） */
.muted { color: var(--muted); font-size: 0.85rem; margin-top: 0.75rem; }

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .hero-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .sol-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .header-phone { display: none; }
}
@media (max-width: 720px) {
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1.25rem 1rem;
    gap: 0;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .nav-toggle { display: flex; }
  .svc-grid,
  .sol-grid,
  .stats-grid,
  .footer-grid { grid-template-columns: 1fr; }
}