/* ---------- Fonts (self-hosted Inter, Latin + Cyrillic subset) ---------- */
@font-face { font-family: "Inter"; font-style: normal; font-weight: 400; font-display: swap; src: url("/fonts/Inter-Regular.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 600; font-display: swap; src: url("/fonts/Inter-SemiBold.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 700; font-display: swap; src: url("/fonts/Inter-Bold.woff2") format("woff2"); }
@font-face { font-family: "Inter Display"; font-style: normal; font-weight: 800; font-display: swap; src: url("/fonts/InterDisplay-ExtraBold.woff2") format("woff2"); }

/* ---------- Theme ---------- */
:root {
  --bg: #000; --bg-2: #0b0b0f; --card: #111114; --card-2: #17171c;
  --border: rgba(255,255,255,.09); --border-2: rgba(255,255,255,.16);
  --text: #f5f5f7; --muted: #a1a1a6; --faint: #6e6e73;
  --accent: #2997ff; --accent-2: #7a5cff; --accent-ink: #fff;
  --ok: #30d158; --wait: #ffd60a;
  --grad: linear-gradient(135deg, #2997ff 0%, #7a5cff 100%);
  --radius: 22px; --radius-sm: 14px;
  --shadow: 0 1px 0 rgba(255,255,255,.04) inset, 0 20px 50px -20px rgba(0,0,0,.6);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f5f7; --bg-2: #fff; --card: #fff; --card-2: #fbfbfd;
    --border: rgba(0,0,0,.08); --border-2: rgba(0,0,0,.14);
    --text: #1d1d1f; --muted: #6e6e73; --faint: #86868b;
    --accent: #0071e3; --accent-2: #6e4cf5;
    --ok: #1f9e44; --wait: #c79500;
    --grad: linear-gradient(135deg, #0071e3 0%, #6e4cf5 100%);
    --shadow: 0 1px 2px rgba(0,0,0,.04), 0 18px 40px -24px rgba(0,0,0,.18);
    color-scheme: light;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
html.pre-en main, html.pre-en .nav, html.pre-en .foot { visibility: hidden; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 16px/1.55 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "cv11", "ss01"; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--accent); color: #fff; padding: 10px 14px; border-radius: 10px; font-weight: 600; }
.skip:focus { top: 12px; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* ---------- Buttons ---------- */
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btns.center { justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 46px; padding: 0 20px; border-radius: 999px;
  font-weight: 600; font-size: 15.5px; letter-spacing: -.01em; white-space: nowrap;
  color: var(--text); background: color-mix(in srgb, var(--text) 7%, transparent);
  border: 1px solid var(--border); transition: background .2s, transform .2s, border-color .2s, box-shadow .2s;
}
.btn:hover { background: color-mix(in srgb, var(--text) 12%, transparent); border-color: var(--border-2); }
.btn:active { transform: scale(.98); }
.btn.primary { color: #fff; background: var(--accent); border-color: transparent; box-shadow: 0 8px 24px -10px var(--accent); }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, #fff); }
.btn.lg { min-height: 54px; padding: 0 26px; font-size: 16.5px; }
.btn-sm { min-height: 36px; padding: 0 16px; font-size: 14px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; letter-spacing: -.01em; min-width: 0; }
.logo picture { display: flex; flex: none; }
.logo img { width: 32px; height: 32px; }
@media (prefers-color-scheme: light) { .logo img { border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.18); } }
.logo span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-links { display: none; }
.nav-links ul { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 10px; flex: none; }
.nav-cta { display: none; }
.seg { display: inline-flex; padding: 3px; border-radius: 999px; background: color-mix(in srgb, var(--text) 8%, transparent); border: 1px solid var(--border); }
.seg button {
  appearance: none; border: 0; background: transparent; color: var(--muted); cursor: pointer;
  font: 600 12.5px/1 "Inter", sans-serif; letter-spacing: .02em; padding: 8px 11px; border-radius: 999px; min-width: 40px;
  transition: background .2s, color .2s;
}
.seg button[aria-pressed="true"] { background: var(--card-2); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.25); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 56px 0 40px; display: grid; gap: 40px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: color-mix(in srgb, var(--text) 5%, transparent);
  color: var(--muted); font-size: 13.5px; font-weight: 600; letter-spacing: .01em; margin-bottom: 22px;
}
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 60%, transparent); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.hero h1 {
  font-family: "Inter Display", "Inter", sans-serif; font-weight: 800;
  font-size: clamp(38px, 10.5vw, 76px); line-height: 1.02; letter-spacing: -.035em;
  background: linear-gradient(180deg, var(--text) 30%, color-mix(in srgb, var(--text) 62%, var(--accent-2)) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  overflow-wrap: break-word; hyphens: manual;
}
.hero-sub { margin-top: 18px; font-size: clamp(19px, 4.6vw, 24px); line-height: 1.35; color: var(--muted); letter-spacing: -.01em; font-weight: 500; }
.hero .btns { margin-top: 30px; }
.hero-meta { margin-top: 22px; color: var(--faint); font-size: 14px; }
.hero-art { position: relative; height: 260px; max-width: 420px; width: 100%; margin: 0 auto; }
.hero-art .glow { position: absolute; inset: 10% 5%; background: var(--grad); filter: blur(70px); opacity: .35; border-radius: 50%; }
.hero-art .ic { position: absolute; width: 27%; height: auto; aspect-ratio: 1; border-radius: 22.5%; box-shadow: 0 18px 40px -12px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.06); animation: float 7s ease-in-out infinite; }
.hero-art .ic-orbit { left: 32%; top: 27%; width: 36%; z-index: 2; animation-delay: -1s; }
.hero-art .ic-taskflow { left: 5%; top: 6%; animation-delay: -2s; }
.hero-art .ic-hanzi { right: 5%; top: 3%; animation-delay: -3.5s; }
.hero-art .ic-tapstop { left: 9%; bottom: 3%; animation-delay: -4.5s; }
.hero-art .ic-bday { right: 8%; bottom: 7%; animation-delay: -5.5s; }
@keyframes float { 50% { transform: translateY(-8px); } }
.mono {
  display: grid; place-items: center; aspect-ratio: 1; border-radius: 22.5%;
  background: linear-gradient(145deg, #2b2b33, #121216); color: #fff;
  font-family: "Inter Display", "Inter", sans-serif; font-weight: 800; letter-spacing: -.03em;
  border: 1px solid rgba(255,255,255,.12);
}

/* ---------- Sections ---------- */
.sec { padding: 48px 0; }
.sec-head { margin-bottom: 28px; max-width: 760px; }
.sec-h { font-family: "Inter Display", "Inter", sans-serif; font-weight: 800; font-size: clamp(30px, 7vw, 48px); line-height: 1.08; letter-spacing: -.03em; }
.sec-lead { margin-top: 12px; color: var(--muted); font-size: 17px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-h { font-size: 19px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 18px; }

/* ---------- Cases ---------- */
.app-icon { width: 64px; height: 64px; border-radius: 22.5%; flex: none; box-shadow: 0 6px 18px -8px rgba(0,0,0,.5), 0 0 0 1px var(--border); }
.app-icon.mono { font-size: 20px; }
.case-head { display: flex; align-items: center; gap: 16px; }
.case-head h3 { font-size: 19px; font-weight: 700; letter-spacing: -.015em; line-height: 1.25; }
.status { margin-top: 4px; font-size: 13.5px; line-height: 1.4; color: var(--muted); }
.status .nw { white-space: nowrap; }
.sdot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 7px; vertical-align: 1px; }
.status.ok .sdot { background: var(--ok); }
.status.wait .sdot { background: var(--wait); }
.case-hero { padding: 24px; position: relative; overflow: hidden; }
.case-hero::before { content: ""; position: absolute; width: 420px; height: 420px; right: -160px; top: -200px; background: radial-gradient(closest-side, color-mix(in srgb, #4a5bff 38%, transparent), transparent); pointer-events: none; }
.case-hero .app-icon { width: 76px; height: 76px; }
.case-hero h3 { font-size: 24px; }
.case-steps { position: relative; display: grid; gap: 12px; margin: 22px 0 0; }
.step { padding: 18px; border-radius: var(--radius-sm); background: var(--card-2); border: 1px solid var(--border); }
.step dt { font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 8px; }
.step dd { margin: 0; font-size: 15.5px; }
.step.result dd { font-weight: 600; }
.feats { display: grid; gap: 7px; }
.feats li { display: flex; gap: 9px; align-items: flex-start; }
.feats svg { width: 18px; height: 18px; color: var(--ok); margin-top: 3px; stroke-width: 2.2; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips li { font-size: 13px; font-weight: 600; padding: 5px 11px; border-radius: 999px; color: var(--text); background: color-mix(in srgb, var(--accent) 14%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.case-grid { display: grid; gap: 14px; margin-top: 14px; }
.case { padding: 22px; display: flex; flex-direction: column; gap: 16px; }
.case-desc { color: var(--muted); font-size: 15px; }
.case .chips { margin-top: auto; }

/* ---------- Services ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.svc { padding: 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.svc-ic { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; flex: none; color: var(--accent); background: color-mix(in srgb, var(--accent) 13%, transparent); }
.svc-ic svg { width: 24px; height: 24px; stroke-width: 1.6; }
.svc-wide {
  grid-column: 1 / -1; gap: 12px; position: relative;
  border: 1px solid transparent;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 12%, var(--card)), var(--card) 55%, color-mix(in srgb, #ff8a3d 8%, var(--card))) padding-box,
              linear-gradient(120deg, color-mix(in srgb, var(--accent) 70%, transparent), color-mix(in srgb, var(--accent-2) 35%, transparent) 50%, color-mix(in srgb, #ff8a3d 55%, transparent)) border-box;
}
.svc-wide-head { display: flex; align-items: center; gap: 14px; }
.svc-wide h3 { font-size: 17px; font-weight: 700; }
.svc-desc { color: var(--muted); font-size: 14.5px; line-height: 1.45; }
.svc-badge { display: inline-flex; align-items: center; font-size: 12.5px; font-weight: 600; padding: 5px 11px; border-radius: 999px; white-space: nowrap;
  color: var(--accent); background: color-mix(in srgb, var(--accent) 13%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); }
.svc h3 { font-size: 15px; hyphens: auto; font-weight: 600; letter-spacing: -.01em; line-height: 1.35; }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; counter-reset: s; }
.process li {
  position: relative; display: flex; flex-direction: column; gap: 6px; padding: 16px 16px 18px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); font-weight: 600; font-size: 15px;
}
.pn { font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .06em; font-variant-numeric: tabular-nums; }

/* ---------- Pricing ---------- */
.plans { display: grid; gap: 14px; }
.plan { position: relative; padding: 26px 22px 22px; display: flex; flex-direction: column; gap: 10px; }
.plan h3 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.price { font-family: "Inter Display", "Inter", sans-serif; font-weight: 800; font-size: 34px; letter-spacing: -.03em; line-height: 1.1; white-space: nowrap; }
.price .from { font-family: "Inter", sans-serif; font-weight: 600; font-size: 16px; letter-spacing: 0; color: var(--muted); margin-right: 2px; }
.price.custom { font-size: 24px; white-space: normal; padding: 5px 0 4px; }
.plan-desc { color: var(--muted); font-size: 14.5px; margin-bottom: 8px; }
.plan .btn { margin-top: auto; width: 100%; }
.plan-wide {
  grid-column: 1 / -1; border: 1px solid transparent;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 12%, var(--card)), var(--card) 55%, color-mix(in srgb, #ff8a3d 8%, var(--card))) padding-box,
              linear-gradient(120deg, color-mix(in srgb, var(--accent) 70%, transparent), color-mix(in srgb, var(--accent-2) 35%, transparent) 50%, color-mix(in srgb, #ff8a3d 55%, transparent)) border-box;
}
.plan-wide-head { display: flex; align-items: center; gap: 16px; flex: none; }
.plan-wide-head .price { font-size: 26px; margin-top: 2px; }
.plan.hi { border-color: color-mix(in srgb, var(--accent) 65%, transparent); box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent), 0 24px 60px -24px color-mix(in srgb, var(--accent) 55%, transparent); background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--card)), var(--card) 60%); }
.badge { position: absolute; top: -11px; right: 18px; box-shadow: 0 4px 14px -4px var(--accent-2); font-size: 12px; font-weight: 700; color: #fff; background: var(--grad); padding: 4px 10px; border-radius: 999px; }
.fine { margin-top: 18px; color: var(--faint); font-size: 14px; }

/* ---------- About ---------- */
.about-grid { display: grid; gap: 14px; }
.about-grid > .card { padding: 24px; }
.about-text { font-size: 16.5px; line-height: 1.6; }
.langs { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.langs li { display: flex; align-items: baseline; gap: 8px; padding: 9px 14px; border-radius: 12px; background: var(--card-2); border: 1px solid var(--border); font-size: 14px; color: var(--muted); }
.langs strong { color: var(--text); font-weight: 600; }
.timeline { position: relative; display: grid; gap: 22px; padding-left: 22px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), color-mix(in srgb, var(--accent-2) 30%, transparent)); border-radius: 2px; }
.timeline li { position: relative; display: grid; gap: 4px; }
.timeline .dot { position: absolute; left: -22px; top: 5px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.timeline li:first-child .dot { background: var(--accent); }
.timeline .dates { font-size: 13px; font-weight: 600; color: var(--accent); font-variant-numeric: tabular-nums; }
.timeline h3 { font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.timeline .org { color: var(--muted); font-size: 14.5px; }

/* ---------- CTA / footer ---------- */
.cta { padding: 40px 0 0; }
.cta-in {
  position: relative; overflow: hidden; text-align: center; padding: 52px 22px; border-radius: 30px;
  background: radial-gradient(120% 140% at 50% 0%, color-mix(in srgb, var(--accent) 30%, var(--card)) 0%, var(--card) 62%);
  border: 1px solid var(--border);
}
.cta h2 { font-family: "Inter Display", "Inter", sans-serif; font-weight: 800; font-size: clamp(32px, 8vw, 54px); letter-spacing: -.035em; line-height: 1.05; }
.cta-in > p { margin: 16px auto 0; max-width: 560px; color: var(--muted); font-size: 18px; }
.cta .btns { margin-top: 30px; }
.cta-contacts { margin-top: 22px !important; font-size: 14.5px !important; }
.cta-contacts a { color: var(--text); border-bottom: 1px solid var(--border-2); }
.cta-contacts a:hover { border-color: var(--accent); }
.foot { margin-top: 72px; }
.foot-in {
  border-top: 1px solid var(--border); padding: 36px 0 calc(40px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center;
  color: var(--faint); font-size: 13px;
}
.foot-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 14.5px; letter-spacing: -.01em; }
.foot-brand picture { display: flex; }
.foot-mark { width: 24px; height: 24px; }
.foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 10px; color: var(--muted); }
.foot-links a { transition: color .2s; }
.foot-links a:hover { color: var(--accent); }
.foot-links span { color: var(--faint); }
.foot-copy { color: var(--faint); font-size: 12.5px; }
@media (prefers-color-scheme: light) { .foot-mark { border-radius: 6px; box-shadow: 0 1px 2px rgba(0,0,0,.18); } }
@media (min-width: 900px) { .foot { margin-top: 96px; } .foot-in { padding-top: 40px; padding-bottom: 48px; } }

/* ---------- 404 ---------- */
.nf { min-height: 100vh; display: grid; place-items: center; text-align: center; padding: 40px 20px; }
.nf .code { font-family: "Inter Display", "Inter", sans-serif; font-weight: 800; font-size: clamp(90px, 25vw, 160px); line-height: 1; letter-spacing: -.05em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nf p { color: var(--muted); margin: 12px 0 28px; font-size: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 599px) {
  .hero .btns .btn, .cta .btns .btn { flex: 1 1 100%; }
}
@media (max-width: 380px) {
  .logo span { display: none; }
}
@media (min-width: 600px) {
  .wrap { padding: 0 28px; }
  .case-grid.two, .case-grid.three { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(4, 1fr); }
  .plans { grid-template-columns: repeat(2, 1fr); }
  .case-steps { grid-template-columns: repeat(2, 1fr); }
  .nav-cta { display: inline-flex; }
}
@media (min-width: 900px) {
  .nav-links { display: block; }
  .hero { grid-template-columns: 1.25fr 1fr; align-items: center; padding: 96px 0 72px; }
  .hero-art { height: 400px; max-width: none; }
  .sec { padding: 64px 0; }
  .case-hero { padding: 36px; }
  .case-steps { grid-template-columns: 1.1fr 1.4fr; }
  .case-grid.three { grid-template-columns: repeat(3, 1fr); }
  .svc-grid { grid-template-columns: repeat(5, 1fr); }
  .svc { padding: 20px 18px; gap: 16px; }
  .svc-wide { flex-direction: row; align-items: center; gap: 28px; padding: 22px 26px; }
  .svc-wide-head { flex: none; }
  .svc-wide .svc-desc { flex: 1; font-size: 15px; }
  .process { grid-template-columns: repeat(8, 1fr); }
  .process li { padding: 16px 14px 18px; font-size: 14.5px; }
  .process li:not(:last-child)::after { content: ""; position: absolute; right: -9px; top: 50%; width: 8px; height: 2px; background: var(--border-2); }
  .plans { grid-template-columns: repeat(4, 1fr); }
  .plan-wide { flex-direction: row; align-items: center; gap: 28px; padding: 22px 26px; }
  .plan-wide .plan-desc { flex: 1; margin: 0; font-size: 15px; }
  .plan-wide .btn { width: auto; margin: 0; flex: none; padding: 0 28px; }
  .about-grid { grid-template-columns: 1.4fr 1fr; }
  .about-grid > .card { padding: 32px; }
  .cta-in { padding: 80px 40px; }
}
@media (min-width: 1100px) {
  .svc { padding: 22px 20px; gap: 18px; }
}