:root {
  color-scheme: light;
  --ink: #101214;
  --muted: #7a818a;
  --paper: #f1f4f7;
  --shell-width: min(1468px, calc(100% - 64px));
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); font: 16px/1.5 var(--font); -webkit-font-smoothing: antialiased; background: radial-gradient(ellipse at 49% 45%, #fff 0, #f6f8fa 37%, #eef2f6 100%); }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid #536b8b; outline-offset: 4px; }
svg { display: block; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.skip { position: fixed; top: -60px; left: 16px; z-index: 10; padding: 10px 16px; background: #fff; border-radius: 12px; }
.skip:focus { top: 10px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.site-header, main { width: var(--shell-width); margin-right: auto; margin-left: auto; }
.site-header { margin-top: 32px; }
.nav-bar { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 64px; gap: 24px; padding: 8px 26px; border: 1px solid #fff; border-radius: 999px; background: linear-gradient(105deg, #ffffffeb, #f9fbffd9 47%, #ffffffef); box-shadow: 0 9px 22px #2432470a; }
.wordmark { justify-self: start; padding: 8px 0; font-size: 26px; font-weight: 700; letter-spacing: -.05em; line-height: 1; }
.nav-links { display: flex; justify-content: center; align-items: center; gap: clamp(28px, 3vw, 48px); }
.nav-links a { display: inline-flex; align-items: center; min-height: 40px; font-size: 15px; font-weight: 500; white-space: nowrap; }
.nav-links a:hover { color: #5d6570; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 11px 24px; border: 1px solid #111418; border-radius: 999px; background: linear-gradient(135deg, #101316, #0d1013 55%, #1c2024); box-shadow: inset 0 1px 1px #ffffff12, 0 4px 11px #1018280c; color: #fff; font-size: 16px; font-weight: 500; line-height: 1.3; text-align: center; white-space: nowrap; transition: background .18s, box-shadow .18s, transform .18s; }
.button:hover { box-shadow: inset 0 1px 1px #ffffff12, 0 6px 17px #10182820; transform: translateY(-1px); }
.button.secondary { color: #101214; background: linear-gradient(135deg, #fff, #ffffffde); border-color: #fff; box-shadow: 0 4px 14px #36485a06; }
.nav-consult { justify-self: end; min-height: 40px; padding: 9px 23px; font-size: 15px; }
.hero { position: relative; isolation: isolate; overflow: hidden; margin-top: 26px; aspect-ratio: 1468 / 466; min-height: 400px; border-radius: 30px; background: #edf2f6; }
.hero-scene { position: absolute; z-index: -2; inset: 0; }
.hero-scene img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(.24) brightness(1.045); }
.hero::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg, #f4f7fa8a 0%, #f5f7f958 24%, #f6f8fa0f 47%, transparent 66%); pointer-events: none; }
.hero-content { position: relative; padding: 42px 24px 0; text-align: center; }
.hero h1 { margin: 0; font-size: clamp(38px, 3.2vw, 48px); line-height: 1.16; font-weight: 650; letter-spacing: -.02em; }
.hero-content > p { margin: 18px 0 0; font-size: 20px; line-height: 1.5; color: #777f88; letter-spacing: .035em; font-weight: 400; }
.hero-actions { display: flex; justify-content: center; gap: 14px; margin-top: 26px; }
.hero-actions .button { min-width: 144px; }
.hero-actions .secondary { min-width: 120px; }
.scene-signature { position: absolute; top: 186px; right: 28px; width: 120px; color: #777f87; font-weight: 400; }
.scene-signature p { margin: 0; font-size: 12px; line-height: 1.95; letter-spacing: .12em; }
.signature-line { display: block; width: 25px; height: 1px; margin: 20px 0 34px; background: #858c91; }
.signature-name { display: block; font-size: 10px; letter-spacing: .33em; }
.signature-note { display: block; margin-top: 17px; font-size: 8px; line-height: 1.8; letter-spacing: .3em; }
.services-section { padding: 22px 0 0; }
.service-groups { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); align-items: start; gap: 14px; scroll-margin-top: 22px; }
.service-group { min-width: 0; padding: 22px 18px; border: 1px solid #ffffffb3; border-radius: 20px; background: linear-gradient(135deg, #ffffffed, #fcfdffcb); box-shadow: 0 8px 24px #50668004; }
.service-group h3 { margin: 0 0 16px; padding-left: 3px; font-size: 21px; line-height: 1.35; font-weight: 650; letter-spacing: -.025em; }
.service-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.service-list a { display: flex; align-items: center; gap: 12px; min-height: 46px; padding: 10px 13px; border: 1px solid #edf0f3; border-radius: 15px; background: linear-gradient(112deg, #fff, #fcfdffcc); font-size: 16px; line-height: 1.4; transition: border-color .18s, background .18s, box-shadow .18s; }
.service-list a:hover { border-color: #d6dde5; background: #fff; box-shadow: 0 3px 12px #22354a08; }
.service-list a > span { min-width: 0; overflow-wrap: anywhere; }
.service-list .icon { flex: none; width: 21px; height: 21px; color: #353b42; stroke-width: 1.8; }
.tools-group .service-list { gap: 6px; }
.tools-group .service-list a { min-height: 43px; gap: 10px; padding: 9px 12px; }
.tools-group .icon { width: 19px; height: 19px; }
.service-group:nth-child(2) li:first-child .icon rect { fill: currentColor; }
.service-group:nth-child(2) li:nth-child(2) .icon rect { fill: currentColor; }
.service-group:nth-child(2) li:nth-child(2) .icon path { fill: currentColor; }
.service-group:nth-child(2) li:nth-child(3) .icon path { fill: currentColor; }
.service-group:nth-child(2) li:nth-child(3) .icon circle { stroke: white; }
.service-group:nth-child(2) li:nth-child(4) .icon path { fill: currentColor; }
.service-group:nth-child(2) li:nth-child(5) .icon ellipse { fill: currentColor; }
.service-group:nth-child(3) li:first-child .icon path { fill: currentColor; }
.service-group:nth-child(4) li:last-child .icon path { fill: none; stroke-width: 2.2; }
.site-footer { width: var(--shell-width); margin: 28px auto 0; padding: 0 0 28px; color: #7b838e; font-size: 13px; text-align: center; letter-spacing: .025em; }
.site-footer p { margin: 4px 0; }
.site-footer p:first-child { margin-bottom: 7px; }
.site-footer a { display: inline-block; min-height: 30px; padding: 3px 0; }
.site-footer a:hover { text-decoration: underline; }
@media (max-width: 1240px) and (min-width: 1001px) {
  .service-groups { gap: 11px; }
  .service-group { padding: 20px 12px; }
  .service-group h3 { font-size: 20px; }
  .service-list a { gap: 9px; padding: 10px; }
  .tools-group .service-list a { gap: 8px; padding: 9px; }
}
@media (max-width: 1000px) {
  :root { --shell-width: calc(100% - 40px); }
  .site-header { margin-top: 24px; }
  .nav-bar { padding: 8px 22px; gap: 18px; }
  .nav-links { gap: 24px; }
  .hero { margin-top: 24px; min-height: 386px; }
  .hero-content { padding-top: 38px; }
  .hero h1 { font-size: 40px; }
  .hero-content > p { font-size: 19px; }
  .scene-signature { display: none; }
  .service-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .service-group { padding: 24px; }
  .service-group h3 { font-size: 22px; }
  .service-list a { min-height: 48px; }
  .tools-group { grid-column: 1 / -1; }
  .tools-group .service-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 14px; }
  .tools-group .service-list a { min-height: 48px; }
}
@media (max-width: 700px) {
  :root { --shell-width: calc(100% - 32px); }
  .site-header { margin-top: 18px; }
  .nav-bar { grid-template-columns: 1fr auto; gap: 6px 16px; min-height: 0; padding: 12px 18px 9px; border-radius: 25px; }
  .wordmark { padding: 6px 0; font-size: 25px; }
  .nav-consult { min-height: 40px; padding: 9px 18px; font-size: 15px; }
  .nav-links { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; gap: 9px; }
  .nav-links a { min-height: 39px; font-size: 16px; }
  .hero { margin-top: 20px; min-height: 422px; aspect-ratio: auto; border-radius: 25px; }
  .hero-scene { top: 164px; }
  .hero::before { background: linear-gradient(180deg, #f3f6f9 0%, #f3f6f9f2 29%, #f3f6f98c 47%, transparent 65%); }
  .hero-content { padding: 35px 14px 0; }
  .hero h1 { font-size: clamp(29px, 7.8vw, 38px); line-height: 1.23; letter-spacing: -.025em; }
  .hero-content > p { margin-top: 15px; font-size: 16px; line-height: 1.55; letter-spacing: 0; }
  .hero-actions { gap: 10px; margin-top: 22px; }
  .hero .button { min-width: 0; min-height: 44px; padding: 11px 19px; font-size: 16px; }
  .services-section { padding-top: 18px; }
  .service-groups { grid-template-columns: 1fr; gap: 16px; scroll-margin-top: 18px; }
  .service-group { padding: 23px 21px; border-radius: 22px; }
  .service-group h3 { margin-bottom: 16px; padding-left: 2px; font-size: 22px; }
  .service-list { gap: 8px; }
  .service-list a { min-height: 49px; padding: 12px 16px; border-radius: 16px; font-size: 17px; gap: 17px; }
  .service-list .icon { width: 22px; height: 22px; }
  .tools-group { grid-column: auto; }
  .tools-group .service-list { grid-template-columns: 1fr; gap: 8px; }
  .tools-group .service-list a { min-height: 49px; padding: 12px 16px; gap: 17px; }
  .tools-group .icon { width: 22px; height: 22px; }
  .site-footer { margin-top: 26px; padding-bottom: max(28px, env(safe-area-inset-bottom)); }
}
@media (max-width: 360px) {
  .nav-bar { padding-right: 14px; padding-left: 14px; }
  .nav-links { gap: 7px; }
  .hero-content { padding-right: 10px; padding-left: 10px; }
  .hero .button { padding-right: 15px; padding-left: 15px; }
  .service-group { padding-right: 18px; padding-left: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .service-list a { transition: none; }
}