:root {
  --brand-1: #4F66F5;
  --brand-2: #8B5CF6;
  --accent: #06B6D4;
  --ink: #0F172A;
  --ink-2: #334155;
  --muted: #64748B;
  --line: #E6E9F2;
  --bg: #FFFFFF;
  --bg-soft: #F7F8FC;
  --grad: linear-gradient(135deg, #4F66F5 0%, #8B5CF6 100%);
  --grad-soft: linear-gradient(135deg, #EEF1FF 0%, #F6F1FF 100%);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .05);
  --shadow: 0 12px 32px rgba(31, 41, 89, .10);
  --shadow-lg: 0 24px 60px rgba(31, 41, 89, .16);
  --radius: 16px;
  --radius-lg: 22px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
ul { list-style: none; }

.container { width: min(100% - 48px, 1160px); margin-inline: auto; }
.section { padding: 92px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: #101534; color: #fff; }
.section--compact { padding: 64px 0; }
.section__head { max-width: 720px; margin: 0 auto 46px; text-align: center; }
.section__head.left { margin-left: 0; text-align: left; }
.section__eyebrow, .badge {
  display: inline-flex; align-items: center; gap: 7px; border-radius: 999px;
  color: var(--brand-1); background: #EEF1FF; font-size: 13px; font-weight: 800;
  letter-spacing: .06em; padding: 6px 14px;
}
.section__head h2 { margin-top: 14px; font-size: clamp(29px, 3vw, 40px); line-height: 1.25; letter-spacing: -.5px; }
.section__head p { margin-top: 14px; color: var(--muted); font-size: 16px; }
.section--dark .section__head p { color: #AAB3D4; }
.grad { color: transparent; background: var(--grad); background-clip: text; -webkit-background-clip: text; }
.muted { color: var(--muted); }
.center { text-align: center; }

.nav {
  position: sticky; top: 0; z-index: 100; height: 68px; background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(16px); transition: box-shadow .2s, border-color .2s; border-bottom: 1px solid transparent;
}
.nav.is-scrolled { border-bottom-color: rgba(230, 233, 242, .9); box-shadow: 0 8px 26px rgba(15, 23, 42, .07); }
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand__mark {
  width: 34px; height: 34px; display: grid; place-items: center; color: #fff; font-weight: 900;
  border-radius: 10px; background: var(--grad); box-shadow: 0 8px 18px rgba(79, 102, 245, .28);
}
.brand__name { font-size: 19px; font-weight: 700; letter-spacing: -.3px; }
.brand__name b { color: var(--brand-1); }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links > a:not(.btn) { color: var(--ink-2); font-size: 14px; font-weight: 600; transition: color .2s; }
.nav__links > a:hover, .nav__links > a.active { color: var(--brand-1); }
.nav__toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; padding: 10px; }
.nav__toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); border-radius: 2px; transition: .25s; }

.btn {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 44px;
  padding: 10px 20px; border: 1px solid transparent; border-radius: 11px; font-weight: 700;
  font-size: 14px; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { color: #fff; background: var(--grad); box-shadow: 0 9px 22px rgba(79, 102, 245, .28); }
.btn--primary:hover { box-shadow: 0 13px 28px rgba(79, 102, 245, .36); }
.btn--ghost { color: var(--ink-2); background: #fff; border-color: var(--line); }
.btn--ghost:hover { border-color: #C9D0F5; box-shadow: var(--shadow-sm); }
.btn--light { color: var(--brand-1); background: #fff; }
.btn--sm { min-height: 38px; padding: 7px 15px; font-size: 13px; }
.btn--lg { min-height: 52px; padding: 13px 25px; font-size: 15px; }
.btn--block { width: 100%; }

.hero { position: relative; overflow: hidden; padding: 94px 0 86px; background: linear-gradient(180deg, #F8F9FF 0%, #FFFFFF 86%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(3px); pointer-events: none; }
.hero::before { width: 520px; height: 520px; right: -190px; top: -240px; background: radial-gradient(circle, rgba(139, 92, 246, .16), transparent 68%); }
.hero::after { width: 420px; height: 420px; left: -180px; bottom: -230px; background: radial-gradient(circle, rgba(6, 182, 212, .12), transparent 68%); }
.hero__grid, .split { position: relative; display: grid; grid-template-columns: 1.06fr .94fr; gap: 64px; align-items: center; }
.hero h1 { margin: 20px 0; font-size: clamp(42px, 5.1vw, 64px); line-height: 1.14; letter-spacing: -1.8px; }
.hero__sub { max-width: 650px; color: var(--ink-2); font-size: 17px; line-height: 1.9; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 13px; margin: 30px 0 28px; }
.hero__chips, .chips { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }
.chip { display: inline-flex; padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink-2); font-style: normal; }

.page-hero { position: relative; overflow: hidden; padding: 76px 0 70px; background: var(--grad-soft); }
.page-hero::after { content: ""; position: absolute; width: 500px; height: 500px; border-radius: 50%; right: -160px; top: -250px; background: radial-gradient(circle, rgba(79, 102, 245, .18), transparent 68%); }
.breadcrumbs { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.breadcrumbs a:hover { color: var(--brand-1); }
.page-hero h1 { position: relative; max-width: 820px; font-size: clamp(36px, 4.5vw, 56px); line-height: 1.16; letter-spacing: -1.3px; }
.page-hero p { position: relative; max-width: 700px; margin-top: 20px; color: var(--ink-2); font-size: 17px; line-height: 1.85; }
.page-hero .hero__cta { position: relative; }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px;
  box-shadow: var(--shadow-sm); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #DDE2FA; }
.card__icon { width: 54px; height: 54px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 15px; background: var(--grad-soft); font-size: 27px; }
.card h3 { margin-bottom: 9px; font-size: 19px; }
.card p { color: var(--ink-2); font-size: 14.5px; line-height: 1.75; }
.card__link { display: inline-flex; margin-top: 18px; color: var(--brand-1); font-size: 14px; font-weight: 800; }
.card__list { display: grid; gap: 10px; margin-top: 18px; }
.card__list li { position: relative; padding-left: 22px; color: var(--ink-2); font-size: 14px; }
.card__list li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-1); font-weight: 900; }

.chat {
  max-width: 500px; margin-left: auto; overflow: hidden; background: #fff; border: 1px solid #DFE4F5;
  border-radius: 22px; box-shadow: 0 30px 70px rgba(54, 64, 126, .18); transform: rotate(1deg);
}
.chat__head { display: flex; align-items: center; gap: 11px; padding: 17px 19px; border-bottom: 1px solid var(--line); }
.chat__avatar, .msg__av { display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; }
.chat__avatar { width: 42px; height: 42px; }
.chat__who { display: flex; flex-direction: column; flex: 1; }
.chat__who strong { font-size: 14px; }
.chat__status { color: var(--muted); font-size: 11.5px; }
.dot { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; background: #22C55E; }
.chat__tag { border-radius: 999px; background: #EEF1FF; color: var(--brand-1); font-size: 11px; font-weight: 800; padding: 4px 9px; }
.chat__body { min-height: 292px; max-height: 292px; overflow-y: auto; padding: 18px; background: #FAFBFF; }
.msg { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 15px; }
.msg.me { flex-direction: row-reverse; }
.msg__av { width: 28px; height: 28px; font-size: 11px; }
.msg__txt { max-width: 77%; padding: 10px 13px; background: #fff; border: 1px solid var(--line); border-radius: 5px 14px 14px; color: var(--ink-2); font-size: 13px; }
.msg.me .msg__txt { color: #fff; background: var(--brand-1); border-color: var(--brand-1); border-radius: 14px 5px 14px 14px; }
.typing i { display: inline-block; width: 5px; height: 5px; margin: 0 2px; border-radius: 50%; background: #9AA4C6; animation: bounce 1s infinite alternate; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { to { transform: translateY(-4px); opacity: .45; } }
.chat__quick { display: flex; gap: 7px; padding: 10px 14px; overflow-x: auto; border-top: 1px solid var(--line); }
.chat__quick button { white-space: nowrap; color: var(--brand-1); background: #F1F3FF; border: 0; border-radius: 999px; padding: 6px 10px; font-size: 11.5px; }
.chat__input { display: flex; gap: 8px; padding: 12px 14px 15px; }
.chat__input input { min-width: 0; flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; outline: none; }
.chat__input input:focus { border-color: var(--brand-1); box-shadow: 0 0 0 3px rgba(79, 102, 245, .11); }
.chat__input button { width: 40px; border: 0; border-radius: 10px; background: var(--grad); color: #fff; }

.stats { background: #fff; border-block: 1px solid var(--line); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 34px 0; }
.stat { text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { font-size: 31px; }
.stat span { color: var(--brand-1); font-weight: 800; }
.stat p { margin-top: 3px; color: var(--muted); font-size: 13px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step { position: relative; text-align: center; padding: 24px 18px; }
.step__no { width: 56px; height: 56px; display: grid; place-items: center; margin: 0 auto 18px; border-radius: 50%; color: #fff; background: var(--grad); font-size: 22px; font-weight: 900; box-shadow: 0 10px 22px rgba(79, 102, 245, .30); }
.step h3 { margin-bottom: 7px; font-size: 18px; }
.step p { color: var(--muted); font-size: 14px; }

.plan { position: relative; display: flex; flex-direction: column; }
.plan--featured { border: 1.5px solid var(--brand-1); transform: translateY(-8px); box-shadow: 0 20px 50px rgba(79, 102, 245, .16); }
.plan--featured:hover { transform: translateY(-12px); }
.plan__tag { position: absolute; left: 50%; top: -14px; transform: translateX(-50%); padding: 5px 15px; color: #fff; background: var(--grad); border-radius: 999px; font-size: 12px; font-weight: 800; }
.plan__price { display: flex; align-items: baseline; gap: 6px; margin: 12px 0 5px; }
.plan__price b { font-size: 38px; line-height: 1.2; }
.plan__price span { color: var(--muted); font-size: 14px; }
.plan .card__list { flex: 1; margin: 21px 0 26px; padding-top: 20px; border-top: 1px dashed var(--line); }

.architecture { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 15px; }
.architecture__block { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; text-align: center; }
.architecture__block b { display: block; margin: 9px 0 5px; }
.architecture__block span { color: var(--muted); font-size: 13px; }
.architecture__arrow { align-self: center; color: var(--brand-1); font-size: 24px; }

.mockup { padding: 18px; border: 1px solid #DCE1F5; border-radius: 22px; background: #fff; box-shadow: var(--shadow-lg); }
.mockup__bar { display: flex; align-items: center; gap: 6px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.mockup__bar i { width: 9px; height: 9px; border-radius: 50%; background: #CBD2E8; }
.mockup__body { display: grid; grid-template-columns: 110px 1fr; min-height: 330px; }
.mockup__side { padding: 16px 10px; background: #F7F8FC; border-radius: 0 0 0 12px; }
.mockup__side span { display: block; height: 10px; margin: 14px 0; border-radius: 5px; background: #DDE2F2; }
.mockup__side span:first-child { background: #9EA9FF; }
.mockup__main { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 18px; }
.mockup__metric { padding: 16px; border-radius: 12px; background: var(--grad-soft); }
.mockup__metric b { display: block; font-size: 24px; }
.mockup__metric span { color: var(--muted); font-size: 12px; }
.mockup__chart { grid-column: 1 / -1; min-height: 150px; border-radius: 12px; background: linear-gradient(180deg, rgba(79,102,245,.15), transparent), repeating-linear-gradient(0deg, transparent 0 29px, #E7EAF5 30px); }

.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; padding: 50px 0; border-bottom: 1px solid var(--line); }
.feature-row:last-child { border-bottom: 0; }
.feature-row:nth-child(even) .feature-row__visual { order: -1; }
.feature-row h2 { margin: 13px 0; font-size: 31px; }
.feature-row p { color: var(--ink-2); }
.feature-row__visual { min-height: 280px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--grad-soft); font-size: 82px; }

.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.kpi { padding: 24px; text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.kpi b { display: block; color: var(--brand-1); font-size: 30px; }
.kpi span { color: var(--muted); font-size: 13px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.compare-table { width: 100%; min-width: 760px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 17px 20px; border-bottom: 1px solid var(--line); text-align: center; font-size: 14px; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; font-weight: 700; }
.compare-table th { background: #F7F8FC; }
.compare-table tr:last-child td { border-bottom: 0; }
.check { color: #16A34A; font-weight: 900; }

.faq { max-width: 820px; margin-inline: auto; display: grid; gap: 12px; }
.faq__item { overflow: hidden; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.faq__question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; border: 0; background: #fff; padding: 19px 21px; color: var(--ink); text-align: left; font-weight: 800; }
.faq__question::after { content: "+"; color: var(--brand-1); font-size: 23px; font-weight: 400; transition: transform .2s; }
.faq__item.open .faq__question::after { transform: rotate(45deg); }
.faq__answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq__answer p { padding: 0 21px 20px; color: var(--ink-2); font-size: 14.5px; }

.help-search { display: flex; align-items: center; max-width: 650px; margin-top: 28px; padding: 7px 8px 7px 18px; border: 1px solid #D8DEF4; border-radius: 14px; background: #fff; box-shadow: var(--shadow); }
.help-search input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 9px; }
.guide-list { display: grid; gap: 12px; }
.guide { display: flex; align-items: center; gap: 15px; padding: 17px 19px; border: 1px solid var(--line); border-radius: 13px; background: #fff; transition: border-color .2s, transform .2s; }
.guide:hover { border-color: #C9D1FA; transform: translateX(4px); }
.guide b { flex: 1; }
.guide span { color: var(--muted); font-size: 13px; }

.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: start; }
.contact-methods { display: grid; gap: 15px; }
.contact-method { display: flex; gap: 15px; align-items: flex-start; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.contact-method__icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--grad-soft); }
.contact-method b { display: block; }
.contact-method span { color: var(--muted); font-size: 13px; }
.form { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field--full { grid-column: 1 / -1; }
.field label { display: block; margin-bottom: 7px; color: var(--ink-2); font-size: 13px; font-weight: 700; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid #DDE1EE; border-radius: 11px; background: #fff; padding: 12px 13px; outline: 0; color: var(--ink); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--brand-1); box-shadow: 0 0 0 3px rgba(79,102,245,.11); }
.field .invalid { border-color: #EF4444; }
.form__status { margin-top: 13px; color: var(--muted); font-size: 13px; text-align: center; }
.form__status.success { color: #15803D; font-weight: 700; }
.form__status.error { color: #DC2626; font-weight: 700; }

.service-plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; max-width: 980px; margin: 0 auto; }
.service-plan { position: relative; display: flex; flex-direction: column; padding: 38px; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 15px 45px rgba(27, 35, 78, .08); }
.service-plan--featured { border: 2px solid var(--brand-1); box-shadow: 0 22px 55px rgba(79, 102, 245, .16); }
.service-plan__label { display: inline-flex; color: var(--brand-1); font-size: 13px; font-weight: 800; }
.service-plan__head h2 { margin: 8px 0; font-size: 29px; }
.service-plan__head p { min-height: 52px; color: var(--muted); }
.service-plan__price { display: flex; align-items: baseline; gap: 6px; margin: 24px 0 19px; }
.service-plan__price b { font-size: 46px; line-height: 1; color: var(--ink); }
.service-plan__price span { color: var(--muted); }
.service-plan__features { flex: 1; display: grid; gap: 12px; margin-bottom: 28px; }
.service-plan__features li { position: relative; padding-left: 24px; color: var(--ink-2); }
.service-plan__features li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-1); font-weight: 900; }

.page-hero--compact { padding-block: 52px; }
.checkout-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 38px; align-items: start; max-width: 1040px; }
.order-summary { position: sticky; top: 96px; padding: 32px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(160deg, #fff, #F6F7FF); box-shadow: var(--shadow); }
.order-summary h2 { margin: 8px 0; }
.order-summary > p { color: var(--muted); }
.order-summary__price { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 22px 0; margin: 20px 0; border-block: 1px solid var(--line); }
.order-summary__price span { color: var(--muted); font-size: 13px; }
.order-summary__price strong { color: var(--brand-1); font-size: 20px; }
.order-summary__price b { font-size: 38px; }
.order-summary__benefits { display: grid; gap: 9px; margin-bottom: 23px; color: var(--ink-2); font-size: 14px; }
.order-summary__benefits li::before { content: "✓ "; color: var(--brand-1); font-weight: 900; }
.checkout-form { max-width: none; }
.payment-method { display: flex; align-items: center; gap: 13px; padding: 15px; margin: 4px 0 20px; border: 2px solid #1677FF; border-radius: 13px; background: #F5FAFF; }
.payment-method__logo { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; background: #1677FF; color: #fff; font-size: 23px; font-weight: 900; }
.payment-method div { flex: 1; }
.payment-method div b, .payment-method div span { display: block; }
.payment-method div span { color: var(--muted); font-size: 12px; }
.payment-method__selected { color: #1677FF; font-size: 13px; font-weight: 800; }
.checkout-note { margin-top: 16px; color: var(--muted); font-size: 12.5px; line-height: 1.7; text-align: center; }
.checkout-note a { color: var(--brand-1); }
.btn:disabled { cursor: not-allowed; opacity: .55; transform: none; }

.result-main { min-height: 70vh; background: var(--grad-soft); }
.payment-result { max-width: 760px; margin: 0 auto; padding: 45px; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: var(--shadow); text-align: center; }
.payment-result__icon { display: grid; place-items: center; width: 70px; height: 70px; margin: 0 auto 18px; border-radius: 50%; background: var(--grad-soft); color: var(--brand-1); font-size: 25px; font-weight: 900; }
.payment-result[data-state="paid"] .payment-result__icon { background: #DCFCE7; color: #15803D; }
.payment-result[data-state="error"] .payment-result__icon { background: #FEE2E2; color: #B91C1C; }
.payment-result > p { max-width: 560px; margin: 10px auto 25px; color: var(--muted); }
.result-order { display: grid; gap: 0; margin: 25px 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; text-align: left; }
.result-order div { display: flex; justify-content: space-between; gap: 20px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.result-order div:last-child { border-bottom: 0; }
.result-order dt { color: var(--muted); }
.result-order dd { margin: 0; font-weight: 800; word-break: break-all; }
.result-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.result-contact { margin-top: 30px; padding: 25px; border-radius: 16px; background: #F0FDF4; }
.result-contact h2 { color: #166534; font-size: 22px; }
.result-contact p { margin: 8px 0 18px; color: #3F6650; }

.logo-cloud { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.logo-pill { padding: 11px 18px; color: var(--ink-2); border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 13px; font-weight: 700; }
.quote { padding: 34px; border-left: 4px solid var(--brand-1); border-radius: 0 var(--radius) var(--radius) 0; background: var(--grad-soft); color: var(--ink-2); font-size: 18px; line-height: 1.8; }

.cta-band { position: relative; overflow: hidden; color: #fff; background: var(--grad); border-radius: 24px; padding: 52px; text-align: center; box-shadow: 0 24px 55px rgba(79, 102, 245, .27); }
.cta-band::after { content: ""; position: absolute; width: 280px; height: 280px; right: -100px; top: -150px; border-radius: 50%; background: rgba(255,255,255,.12); }
.cta-band h2 { position: relative; font-size: clamp(28px, 3.6vw, 42px); }
.cta-band p { position: relative; margin: 11px auto 25px; color: rgba(255,255,255,.86); }
.cta-band .btn { position: relative; }

.footer { color: #CBD2EC; background: #0E1230; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.25fr; gap: 36px; padding: 58px 0 42px; }
.footer .brand__name { color: #fff; }
.footer__slogan { margin-top: 15px; color: #8E98C0; font-size: 14px; line-height: 1.75; }
.footer__col h4 { margin-bottom: 15px; color: #fff; font-size: 15px; }
.footer__col a, .footer__col span { display: block; margin-bottom: 10px; color: #9AA3CB; font-size: 13.5px; }
.footer__col a:hover { color: #fff; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer__bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-block: 20px; color: #7E87B0; font-size: 12.5px; }
.fab { position: fixed; right: 22px; bottom: 24px; z-index: 50; display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 999px; background: var(--grad); color: #fff; font-size: 13px; font-weight: 800; box-shadow: 0 13px 30px rgba(79,102,245,.42); transition: transform .2s; }
.fab:hover { transform: translateY(-3px); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .62s ease, transform .62s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero__grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .chat { margin-inline: auto; transform: none; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .architecture { grid-template-columns: 1fr; }
  .architecture__arrow { transform: rotate(90deg); justify-self: center; }
  .feature-row { grid-template-columns: 1fr; gap: 28px; }
  .feature-row:nth-child(even) .feature-row__visual { order: 0; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .checkout-layout { grid-template-columns: 1fr; }
  .order-summary { position: static; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 32px, 1160px); }
  .section { padding: 68px 0; }
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed; inset: 68px 0 auto; display: flex; flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px 16px 18px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    transform: translateY(-130%); opacity: 0; visibility: hidden; pointer-events: none; transition: transform .28s ease, opacity .2s, visibility .28s;
  }
  .nav__links.open { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
  .nav__links > a:not(.btn) { padding: 13px 8px; border-bottom: 1px solid #F0F2F8; }
  .nav__links .btn { margin-top: 10px; }
  .nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { padding: 68px 0 62px; }
  .hero h1 { font-size: 40px; }
  .page-hero { padding: 58px 0; }
  .grid--2, .grid--3, .grid--4, .steps, .stats__grid, .kpi-grid { grid-template-columns: 1fr; }
  .stat { padding: 17px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; }
  .hero__cta .btn { width: 100%; }
  .mockup__body { grid-template-columns: 78px 1fr; }
  .mockup__main { grid-template-columns: 1fr; }
  .mockup__chart { grid-column: 1; }
  .form__grid { grid-template-columns: 1fr; }
  .field--full { grid-column: auto; }
  .form { padding: 24px 20px; }
  .service-plans { grid-template-columns: 1fr; }
  .service-plan { padding: 28px 22px; }
  .payment-result { padding: 32px 20px; }
  .result-order div { display: block; }
  .result-order dd { margin-top: 5px; }
  .footer__grid { grid-template-columns: 1fr; padding-top: 46px; }
  .cta-band { padding: 42px 22px; border-radius: 18px; }
  .fab span { display: none; }
  .fab { width: 48px; height: 48px; justify-content: center; padding: 0; }
}

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