:root {
  --ink: #0a1020;
  --muted: #667085;
  --blue: #3b50ff;
  --blue-deep: #2438e8;
  --line: rgba(77, 101, 180, .14);
  --pearl: #f8fbff;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { background: #fff; color-scheme: light; scroll-padding-top: 96px; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 5%, rgba(162, 182, 255, .17), transparent 26rem),
    linear-gradient(180deg, #fbfdff 0%, #fff 15%, #f9fbff 42%, #fff 68%, #f5f8ff 100%);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a, button { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid rgba(59,80,255,.48); outline-offset: 3px; }
::selection { color: #fff; background: var(--blue); }

.site-shell { position: relative; isolation: isolate; overflow: hidden; }
.container { width: min(calc(100% - 48px), var(--container)) !important; max-width: none !important; margin-inline: auto; }
.section { position: relative; padding: 112px 0; }
.section-soft { background: linear-gradient(180deg, rgba(245,248,255,.66), rgba(255,255,255,.88)); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 7px 12px;
  border: 1px solid rgba(108, 137, 255, .16);
  border-radius: 999px;
  background: rgba(232, 238, 255, .8);
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}
.eyebrow::before { display: none; }
.section-title { margin: 16px 0 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.18; font-weight: 800; letter-spacing: 0; }
.section-copy { margin: 22px 0 0; color: var(--muted); font-size: 15px; line-height: 1.75; }

.glass-card {
  --spot-x: 50%;
  --spot-y: 50%;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(360px circle at var(--spot-x) var(--spot-y), rgba(255,255,255,.96), rgba(238,244,255,.38) 42%, transparent 72%),
    rgba(255,255,255,.54);
  border: 1px solid rgba(111, 133, 205, .09);
  box-shadow: 0 16px 42px rgba(58, 79, 154, .055), inset 0 1px 0 rgba(255,255,255,.9);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
}
.glass-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(180px circle at var(--spot-x) var(--spot-y), rgba(78, 99, 255, .12), transparent 70%);
  opacity: 0;
  transition: opacity .3s ease;
}
.glass-card:hover::after { opacity: 1; }
.glass-card > * { position: relative; z-index: 1; }

.nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.nav-wrap.scrolled {
  background: rgba(255,255,255,.75);
  border-color: rgba(67,84,145,.1);
  box-shadow: 0 10px 36px rgba(37, 48, 97, .06);
  backdrop-filter: blur(20px);
}
.nav { position: relative; height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; flex: none; }
.brand-logo-wrap { position: relative; display: grid; place-items: center; flex: none; width: 32px; height: 43px; isolation: isolate; }
.brand-logo-wrap::before { content: ""; position: absolute; inset: 4px -2px; z-index: -1; border-radius: 50%; background: radial-gradient(ellipse, rgba(41, 130, 255, .36), rgba(62, 112, 255, .12) 48%, transparent 72%); filter: blur(8px); }
.brand-logo { display: block; width: 30px; height: 42px; object-fit: contain; filter: drop-shadow(0 0 4px rgba(29, 151, 255, .22)) drop-shadow(0 8px 13px rgba(30, 87, 220, .2)); }
.brand-copy strong { display: block; font-size: 15px; font-weight: 800; line-height: 1; }
.brand-copy small { display: block; margin-top: 5px; color: #4b5565; font-size: 9px; font-weight: 700; line-height: 1; letter-spacing: 1.35px; }
.nav-links { display: flex; align-items: center; justify-content: center; gap: clamp(18px, 2.7vw, 38px); }
.nav-link { position: relative; padding: 34px 0 30px; color: #1d2638; font-size: 13px; font-weight: 600; text-decoration: none; white-space: nowrap; }
.nav-link::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 23px; height: 2px; border-radius: 2px; background: var(--blue); transition: right .25s ease; }
.nav-link:hover::after, .nav-link.active::after { right: 0; }
.nav-link.active { color: var(--blue); }
.nav-actions { display: flex; align-items: center; gap: 10px; flex: none; }
.contact-btn, .primary-btn, .secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 23px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}
.contact-btn { color: #2f43df; background: rgba(255,255,255,.66); border-color: rgba(59,80,255,.25); box-shadow: 0 8px 22px rgba(70,84,164,.07); }
.primary-btn { color: #fff; background: linear-gradient(135deg, #283fff, #6372ff); box-shadow: 0 13px 34px rgba(52,70,255,.25); }
.secondary-btn { color: #3340d7; background: rgba(255,255,255,.62); border-color: rgba(62,78,223,.25); box-shadow: 0 8px 24px rgba(70,84,164,.08); }
.contact-btn:hover, .primary-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.primary-btn:hover, .contact-btn:hover { box-shadow: 0 18px 40px rgba(52,70,255,.3); }
.contact-btn:active, .primary-btn:active, .secondary-btn:active, .menu-btn:active, .pagination-dots button:active, .track-dot:active { transform: translateY(1px) scale(.98); }
.menu-btn { display: inline-flex; width: 42px; height: 42px; border-radius: 50%; color: var(--blue); background: rgba(255,255,255,.66); border: 1px solid rgba(59,80,255,.24); align-items: center; justify-content: center; cursor: pointer; transition: transform .25s ease, box-shadow .25s ease, background .25s ease; }
.menu-btn:hover { transform: translateY(-2px); box-shadow: 0 9px 24px rgba(59,80,255,.18); background: #fff; }
.menu-btn i { width: 18px; height: 18px; }

.hero { position: relative; min-height: 690px; display: flex; align-items: center; padding: 96px 0 48px; }
.hero::before { content: ""; position: absolute; width: 640px; height: 640px; right: -80px; top: 8px; background: radial-gradient(circle, rgba(101,126,255,.15), transparent 66%); filter: blur(18px); z-index: -1; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .93fr) minmax(470px, 1.07fr); align-items: center; gap: 0; }
.hero-copy { position: relative; z-index: 3; padding-top: 0; }
.hero-kicker { display: inline-block; padding: 0; border: 0; border-radius: 0; color: #526cff; background: transparent; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-shadow: 0 4px 16px rgba(74,96,255,.2); }
.hero h1 { max-width: 650px; margin: 22px 0 0; font-size: clamp(42px, 3.45vw, 50px); font-weight: 800; line-height: 1.25; letter-spacing: 0; }
.gradient-text { color: transparent; background: linear-gradient(100deg, #202fda 0%, #536cff 50%, #8a72ff 100%); background-clip: text; -webkit-background-clip: text; }
.hero-desc { max-width: 590px; margin: 22px 0 0; color: #596579; font-size: 14px; line-height: 1.9; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; }
.hero-actions svg { width: 24px; height: 24px; padding: 5px; border: 1px solid currentColor; border-radius: 50%; }
.hero-visual { position: relative; height: 500px; min-width: 0; display: grid; place-items: center; overflow: visible; }
.hero-visual::before { content: ""; position: absolute; width: 96%; height: 96%; border-radius: 50%; background: radial-gradient(circle, rgba(111,130,255,.13), transparent 68%); filter: blur(22px); }
.hero-visual::after { content: ""; position: absolute; z-index: 2; inset: 10% 0 8% 8%; pointer-events: none; opacity: .42; background: linear-gradient(112deg, transparent 38%, rgba(255,255,255,.72) 47%, rgba(137,170,255,.28) 51%, transparent 62%); -webkit-mask-image: radial-gradient(ellipse at 62% 46%, #000 0 24%, transparent 70%); mask-image: radial-gradient(ellipse at 62% 46%, #000 0 24%, transparent 70%); filter: blur(7px); animation: sheen 7s ease-in-out infinite; }
.hero-orbit { position: absolute; z-index: 2; left: 50%; top: 62%; width: 88%; aspect-ratio: 1; border-radius: 50%; pointer-events: none; opacity: .66; background: conic-gradient(from 0deg, transparent 0 12%, rgba(98,130,255,.9) 18%, transparent 27% 48%, rgba(139,105,255,.76) 56%, transparent 66% 84%, rgba(92,182,255,.78) 91%, transparent); -webkit-mask: radial-gradient(circle, transparent 0 64%, #000 65% 66%, transparent 67%); mask: radial-gradient(circle, transparent 0 64%, #000 65% 66%, transparent 67%); filter: drop-shadow(0 0 8px rgba(83,114,255,.55)); animation: orbitRotate 14s linear infinite; }
.hero-image { position: relative; z-index: 1; width: 142%; height: 142%; max-width: none; object-fit: contain; object-position: center 58%; opacity: .88; filter: saturate(.92) brightness(1.04) contrast(.95) drop-shadow(0 28px 46px rgba(68,84,206,.12)); animation: float 8s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translate(-1%, -3%); } 50% { transform: translate(-1%, calc(-3% - 12px)); } }
@keyframes sheen { 0%,100% { transform: translateX(-9%); opacity: .18; } 48% { transform: translateX(12%); opacity: .5; } }
@keyframes orbitRotate { from { transform: translate(-50%, -50%) scaleY(.28) rotate(0deg); } to { transform: translate(-50%, -50%) scaleY(.28) rotate(360deg); } }

.partners { position: relative; z-index: 4; border-top: 1px solid rgba(121,138,196,.1); border-bottom: 1px solid rgba(121,138,196,.1); background: rgba(255,255,255,.58); backdrop-filter: blur(14px); }
.partner-row { min-height: 108px; display: grid; grid-template-columns: 1.3fr repeat(6, 1fr); align-items: center; gap: 24px; }
.partner-title { color: #4d5769; font-size: 13px; font-weight: 600; }
.partner { display: flex; align-items: center; justify-content: center; gap: 8px; color: #94a3b8; font-size: 12px; font-weight: 700; white-space: nowrap; transition: color .2s ease; }
.partner:hover { color: var(--blue); }
.partner i { width: 19px; height: 19px; }

.services-layout { display: grid; grid-template-columns: 345px 1fr; gap: 44px; align-items: start; }
.services-intro { position: sticky; top: 128px; }
.services-intro .section-title { font-size: 31px; line-height: 1.42; }
.text-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 30px; color: var(--blue); font-size: 13px; font-weight: 700; text-decoration: none; }
.text-link i { width: 16px; height: 16px; transition: transform .2s ease; }
.text-link:hover i { transform: translateX(4px); }
.bento-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.service-card { min-height: 185px; padding: 27px 25px; border-radius: 7px; will-change: transform; transition: transform .3s ease, box-shadow .3s ease; }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 20px 46px rgba(53,71,146,.10); }
.service-card:nth-child(2), .service-card:nth-child(5) { transform: translateY(22px); }
.service-card:nth-child(2):hover, .service-card:nth-child(5):hover { transform: translateY(17px); }
.icon-box { width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; color: var(--blue); border-radius: 9px; background: linear-gradient(145deg, rgba(214,224,255,.76), rgba(255,255,255,.74)); border: 1px solid rgba(64,82,255,.12); box-shadow: inset 0 1px 0 #fff; }
.icon-box i { width: 18px; height: 18px; }
.service-card h3 { margin: 20px 0 0; font-size: 16px; line-height: 1.4; font-weight: 700; }
.service-card p { margin: 10px 0 0; color: #5d6a7d; font-size: 13px; line-height: 1.8; }

.solutions { overflow: hidden; padding-top: 76px; padding-bottom: 92px; }
.solutions .container { display: block; }
.solutions-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: end; margin-bottom: 28px; }
.solutions-head > div { min-width: 0; }
.solutions-head .section-title { max-width: 640px; font-size: clamp(30px, 3.2vw, 43px); }
.solutions-head .section-copy { max-width: 630px; margin: 16px 0 0; }
.solutions-head .secondary-btn { align-self: start; margin-top: 2px; }
.solution-track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; margin: 0; }
.solution-card { position: relative; min-width: 0; min-height: 184px; aspect-ratio: 1.56; border-radius: 10px; overflow: hidden; background: #dfe9f8; border: 1px solid rgba(255,255,255,.75); box-shadow: 0 14px 34px rgba(49,70,142,.12); transition: transform .35s ease, box-shadow .35s ease; }
.solution-card:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(49,70,142,.18); }
.solution-media { position: absolute; inset: 0; overflow: hidden; background: #e9effa; }
.solution-media::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(145deg, rgba(66,77,255,.18), rgba(137,92,255,.24)); mix-blend-mode: screen; pointer-events: none; }
.solution-media::after { content: ""; position: absolute; inset: auto 0 0; z-index: 1; height: 72%; background: linear-gradient(transparent, rgba(12,24,54,.84)); pointer-events: none; }
.solution-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.92) contrast(1.05) hue-rotate(-8deg); transition: transform .7s cubic-bezier(.2,.7,.2,1), filter .35s ease; }
.solution-card:hover img { transform: scale(1.055); }
.solution-badge { position: absolute; left: 14px; top: 14px; z-index: 2; width: 29px; height: 29px; display: grid; place-items: center; border-radius: 9px; color: #fff; background: rgba(64,79,255,.72); border: 1px solid rgba(255,255,255,.44); backdrop-filter: blur(8px); }
.solution-badge i { width: 17px; height: 17px; }
.solution-body { position: absolute; inset: auto 0 0; z-index: 2; padding: 42px 15px 13px; color: #fff; }
.solution-body h3 { margin: 0; font-size: 15px; font-weight: 700; }
.solution-body p { min-height: 0; margin: 5px 0 0; color: rgba(235,241,255,.82); font-size: 12px; line-height: 1.6; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.solution-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; color: #fff; font-size: 11px; font-weight: 700; text-decoration: none; opacity: .94; }
.solution-more i { width: 14px; height: 14px; }
.track-controls { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 26px; }
.solutions .track-controls { grid-column: auto; grid-row: auto; }
.track-dot { width: 6px; height: 4px; padding: 0; border: 0; border-radius: 999px; background: #ccd3e5; cursor: pointer; transition: width .25s ease, background .25s ease; }
.track-dot.active { width: 22px; background: var(--blue); }

.stats { padding-top: 0; }
.stats-panel { display: grid; grid-template-columns: repeat(5, 1fr); padding: 36px 20px; border-radius: 18px; border-color: rgba(111,133,205,.07); box-shadow: 0 18px 46px rgba(58,79,154,.055), inset 0 1px 0 rgba(255,255,255,.92); }
.stat { position: relative; text-align: center; }
.stat:not(:last-child) { border-right: 1px solid #f0f2f7; }
.stat-number { color: var(--blue); font-size: clamp(30px, 3vw, 42px); line-height: 1; font-weight: 800; font-variant-numeric: tabular-nums; }
.stat-label { margin-top: 14px; color: #5f6a7a; font-size: 13px; }

.technology { overflow: hidden; background: linear-gradient(112deg, rgba(248,251,255,.96), rgba(240,245,255,.68) 55%, rgba(255,255,255,.9)); }
.technology::before { content: ""; position: absolute; width: 540px; height: 540px; right: 10%; top: 0; border-radius: 50%; background: radial-gradient(circle, rgba(95,125,255,.18), transparent 66%); filter: blur(20px); }
.tech-layout { display: grid; grid-template-columns: 350px 1fr; gap: 40px; align-items: center; }
.tech-copy .section-title { font-size: 36px; }
.tech-stage { position: relative; min-height: 520px; overflow: hidden; border-radius: 22px; background: radial-gradient(circle at 50% 50%, rgba(108,133,255,.13), transparent 62%); isolation: isolate; }
.tech-stage::before { content: ""; position: absolute; z-index: 0; left: 50%; top: 50%; width: 500px; height: 320px; transform: translate(-50%, -50%); border-radius: 50%; background: radial-gradient(ellipse, rgba(99,126,255,.32) 0%, rgba(143,116,255,.17) 42%, transparent 72%); filter: blur(24px); animation: corePulse 5.5s ease-in-out infinite; pointer-events: none; }
.tech-canvas { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; opacity: .9; }
.tech-crystal { position: absolute; z-index: 1; left: 50%; top: 50%; width: min(62%, 520px); height: auto; transform: translate(-50%, -50%); opacity: .92; filter: saturate(1.1) drop-shadow(0 20px 34px rgba(74,91,225,.28)); animation: crystalFloat 7s ease-in-out infinite; pointer-events: none; }
.tech-tag { position: absolute; z-index: 2; width: 205px; min-height: 68px; display: flex; align-items: center; gap: 12px; padding: 14px 15px; border-radius: 9px; border-color: rgba(111,133,205,.14); box-shadow: 0 14px 32px rgba(58,79,154,.08), inset 0 1px 0 rgba(255,255,255,.92); transition: transform .25s ease, box-shadow .25s ease; }
.tech-tag:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 20px 42px rgba(68,84,206,.16), 0 0 24px rgba(97,120,255,.16); }
.tech-tag:nth-of-type(1) { left: 5%; top: 3%; }
.tech-tag:nth-of-type(2) { right: 3%; top: 9%; }
.tech-tag:nth-of-type(3) { right: 0; top: 43%; }
.tech-tag:nth-of-type(4) { right: 8%; bottom: 4%; }
.tech-tag:nth-of-type(5) { left: 3%; bottom: 6%; }
.tech-tag:nth-of-type(6) { left: 0; top: 39%; }
.tech-tag .icon-box { width: 35px; height: 35px; flex: none; }
.tech-tag strong { display: block; font-size: 12px; line-height: 1.45; }
.tech-tag small { display: block; margin-top: 3px; color: #6b7485; font-size: 11px; }
@keyframes corePulse { 0%,100% { opacity: .65; transform: translate(-50%, -50%) scale(.94); } 50% { opacity: 1; transform: translate(-50%, -50%) scale(1.06); } }
@keyframes crystalFloat { 0%,100% { transform: translate(-50%, calc(-50% + 2px)); } 50% { transform: translate(-50%, calc(-50% - 8px)); } }

.cta { position: relative; min-height: 270px; display: flex; align-items: center; padding: 52px 0; overflow: hidden; background: #eaf2ff; }
.cta-bg { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 64%; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(250,252,255,.95) 0%, rgba(250,252,255,.72) 36%, rgba(250,252,255,.06) 70%); }
.cta-content { position: relative; z-index: 2; max-width: 390px; }
.cta h2 { margin: 0; font-size: clamp(24px, 2.1vw, 29px); line-height: 1.3; font-weight: 800; }
.cta .primary-btn { margin-top: 24px; color: #3044dc; background: rgba(255,255,255,.74); border-color: rgba(59,80,255,.32); box-shadow: 0 8px 24px rgba(62,79,180,.10); }
.pagination-dots { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 24px; }
.pagination-dots button { width: 6px; height: 4px; padding: 0; border: 0; border-radius: 999px; background: #ccd3e5; cursor: pointer; transition: width .25s ease, background .25s ease, transform .2s ease; }
.pagination-dots button.active { width: 22px; background: var(--blue); }
.tech-visual-wrap { min-width: 0; }

.footer { padding: 70px 0 22px; background: rgba(255,255,255,.94); }
.footer-main { display: grid; grid-template-columns: 1.8fr repeat(5, .78fr) 1.35fr; gap: 30px; }
.footer-brand .brand { display: inline-flex; }
.footer-brand p { max-width: 245px; margin: 19px 0 0; color: #7b8495; font-size: 11px; line-height: 1.9; }
.socials { display: flex; gap: 8px; margin-top: 20px; }
.socials a { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; color: #7e889a; background: #f4f6fb; border: 1px solid #edf0f6; transition: color .2s ease, background .2s ease; }
.socials a:hover { color: #fff; background: var(--blue); }
.socials i { width: 14px; height: 14px; }
.footer-col h3 { margin: 5px 0 17px; font-size: 12px; font-weight: 700; }
.footer-col a, .footer-col p { display: block; margin: 0 0 11px; color: #7a8495; font-size: 11px; line-height: 1.55; text-decoration: none; }
.footer-col a:hover { color: var(--blue); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 50px; padding-top: 22px; border-top: 1px solid rgba(91,108,166,.12); color: #6b7280; font-size: 11px; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 18px; }

@media (prefers-reduced-transparency: reduce) {
  .glass-card,
  .nav-wrap.scrolled,
  .partners,
  .nav-links {
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .glass-card::after { display: none; }
}

.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s cubic-bezier(.22,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.stagger > * { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.stagger.is-visible > *:nth-child(2) { transition-delay: .07s; }
.stagger.is-visible > *:nth-child(3) { transition-delay: .14s; }
.stagger.is-visible > *:nth-child(4) { transition-delay: .21s; }
.stagger.is-visible > *:nth-child(5) { transition-delay: .28s; }
.stagger.is-visible > *:nth-child(6) { transition-delay: .35s; }
.stagger.is-visible > .service-card:hover { transform: translateY(-5px); box-shadow: 0 20px 46px rgba(53,71,146,.10); }

@media (max-width: 1100px) {
  .nav-links { gap: 17px; }
  .nav-link { font-size: 12px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(400px, .9fr); }
  .hero h1 { font-size: 52px; }
  .partner-row { grid-template-columns: 1.3fr repeat(3,1fr); padding: 24px 0; row-gap: 22px; }
  .bento-grid { grid-template-columns: repeat(2,1fr); }
  .service-card:nth-child(2), .service-card:nth-child(5) { transform: none; }
  .service-card:nth-child(2):hover, .service-card:nth-child(5):hover { transform: translateY(-5px); }
  .footer-main { grid-template-columns: 1.5fr repeat(3, 1fr); row-gap: 38px; }
}

@media (min-width: 861px) {
  .nav-links.open { position: absolute; top: 72px; right: 0; display: flex; flex-direction: column; align-items: stretch; gap: 0; min-width: 190px; padding: 10px; border: 1px solid rgba(87,105,166,.14); border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: 0 18px 42px rgba(45,61,126,.14); backdrop-filter: blur(18px); }
  .nav-links.open .nav-link { padding: 12px 14px; border-radius: 9px; }
  .nav-links.open .nav-link:hover { background: #f3f6ff; }
  .nav-links.open .nav-link::after { bottom: 6px; left: 14px; right: 100%; }
  .nav-links.open .nav-link:hover::after, .nav-links.open .nav-link.active::after { right: 14px; }
}

@media (max-width: 860px) {
  html { scroll-padding-top: 82px; }
  .solutions { padding-top: 62px; padding-bottom: 76px; }
  .container { width: min(calc(100% - 32px), var(--container)) !important; }
  .section { padding: 84px 0; }
  .nav { height: 74px; }
  .nav-links {
    position: fixed;
    inset: 74px 0 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    padding: 36px 24px;
    background: rgba(249,251,255,.96);
    backdrop-filter: blur(24px);
    transform: translateX(100%);
    opacity: 0;
    transition: transform .35s ease, opacity .35s ease;
  }
  .nav-links.open { transform: translateX(0); opacity: 1; }
  .nav-link { width: min(100%, 420px); padding: 18px 8px; font-size: 18px; text-align: center; border-bottom: 1px solid rgba(86,103,164,.1); }
  .nav-link::after { bottom: -1px; }
  .nav-actions .contact-btn { display: none; }
  .menu-btn { display: inline-flex; }
  .hero { min-height: auto; padding: 122px 0 58px; }
  .hero-grid { grid-template-columns: 1fr; gap: 8px; }
  .hero-copy { text-align: center; }
  .hero h1 { max-width: 650px; margin-inline: auto; font-size: clamp(42px, 9.4vw, 62px); }
  .hero-desc { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { height: 460px; }
  .hero-image { width: 116%; height: 116%; object-position: center 58%; }
  .services-layout { grid-template-columns: 1fr; gap: 42px; }
  .services-intro { position: static; text-align: center; }
  .services-intro .section-copy { max-width: 600px; margin-inline: auto; }
  .solutions .container { display: block; }
  .solutions-head { display: block; text-align: center; }
  .solutions-head .section-copy { margin-inline: auto; }
  .solutions-head .secondary-btn { margin-top: 22px; }
  .solution-track { grid-template-columns: repeat(2, 1fr); margin-top: 34px; }
  .stats-panel { grid-template-columns: repeat(5, minmax(0,1fr)); padding: 34px 8px; }
  .stat-number { font-size: 28px; }
  .tech-layout { grid-template-columns: 1fr; }
  .tech-copy { text-align: center; }
  .tech-copy .section-copy { max-width: 600px; margin-inline: auto; }
  .tech-stage { min-height: 510px; }
  .footer-main { grid-template-columns: repeat(3, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 28px), var(--container)) !important; }
  .section { padding: 70px 0; }
  .brand-logo-wrap { width: 29px; height: 40px; }
  .brand-logo { width: 27px; height: 38px; }
  .hero { padding-top: 112px; }
  .hero h1 { font-size: 34px; line-height: 1.28; }
  .hero-desc { font-size: 13px; line-height: 1.9; }
  .hero-actions { gap: 9px; }
  .primary-btn, .secondary-btn { min-height: 44px; padding: 0 17px; font-size: 12px; }
  .hero-visual { height: 375px; margin-inline: -8px; }
  .hero-image { width: 114%; height: 114%; object-position: center 58%; }
  .partner-row { grid-template-columns: repeat(2, 1fr); gap: 22px 10px; }
  .partner-title { grid-column: 1 / -1; text-align: center; }
  .partner { font-size: 10px; }
  .section-title { font-size: 34px; }
  .bento-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 160px; }
  .solution-track { display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 2px 14px 20px; margin-inline: -14px; }
  .solution-track::-webkit-scrollbar { display: none; }
  .solution-card { flex: 0 0 82vw; scroll-snap-align: center; }
  .solution-media { aspect-ratio: 1.55; }
  .stats-panel { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .stat:not(:last-child) { border-right: 0; }
  .stat:last-child { grid-column: 1 / -1; }
  .tech-stage { min-height: 620px; }
  .tech-crystal { width: 82%; max-width: 300px; }
  .tech-tag { width: 170px; min-height: 62px; padding: 11px; }
  .tech-tag:nth-of-type(1) { left: 0; top: 0; }
  .tech-tag:nth-of-type(2) { right: 0; top: 87px; }
  .tech-tag:nth-of-type(3) { right: 0; top: 268px; }
  .tech-tag:nth-of-type(4) { right: 0; bottom: 2px; }
  .tech-tag:nth-of-type(5) { left: 0; bottom: 88px; }
  .tech-tag:nth-of-type(6) { left: 0; top: 180px; }
  .cta { min-height: 310px; padding: 48px 0 42px; background-position: 63% 54%; align-items: center; }
  .cta::before { background: linear-gradient(180deg, rgba(250,252,255,.16), rgba(250,252,255,.95) 74%); }
  .cta-content { text-align: center; max-width: 360px; margin-inline: auto; }
  .cta h2 { font-size: 25px; }
  .footer-main { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .footer-bottom { display: block; line-height: 1.8; }
  .footer-legal { margin-top: 12px; }
}

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

/* ── 无障碍：视觉隐藏但可被屏幕阅读器读取 ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}