:root {
  --ink: #11182b;
  --ink-soft: #697489;
  --paper: #f5f7fb;
  --white: #fff;
  --line: #dce2ec;
  --blue: #5269eb;
  --blue-dark: #3b51d5;
  --mint: #62d9a0;
  --warm: #f6bb6a;
  --shadow: 0 28px 70px rgba(29, 43, 83, .16);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  line-height: 1.6;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.section-shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }

.site-header { position: absolute; z-index: 5; top: 0; right: 0; left: 0; display: flex; width: min(1160px, calc(100% - 48px)); height: 90px; align-items: center; justify-content: space-between; margin-inline: auto; color: #eff3ff; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.04em; }
.brand { font-size: 19px; }
.brand img, .footer-brand img { width: 35px; height: 35px; border-radius: 11px; box-shadow: 0 10px 24px rgba(21, 33, 75, .22); }
.site-nav { display: flex; align-items: center; gap: 28px; color: #bdc6dd; font-size: 13px; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--white); }

.hero { position: relative; overflow: hidden; min-height: 760px; color: var(--white); background: var(--ink); }
.hero::after { position: absolute; right: -12%; bottom: -46%; width: 66vw; height: 66vw; border: 1px solid rgba(98, 217, 160, .11); border-radius: 50%; content: ""; }
.hero-inner { position: relative; z-index: 1; display: grid; width: min(1160px, calc(100% - 48px)); min-height: 760px; margin-inline: auto; grid-template-columns: minmax(0, .94fr) minmax(430px, 1.06fr); align-items: center; gap: 56px; padding: 110px 0 58px; }
.hero-copy { padding-bottom: 24px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .15em; }
.eyebrow-mark { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(98, 217, 160, .14); }
.hero h1 { max-width: 600px; margin: 0 0 26px; font-size: clamp(52px, 7vw, 88px); font-weight: 850; letter-spacing: -.09em; line-height: 1.04; }
.hero h1 span { color: #91a1ff; }
.hero-lede { max-width: 500px; margin: 0 0 34px; color: #aab5ca; font-size: 16px; line-height: 1.9; }
.hero-actions, .closing-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; border-radius: 13px; padding: 14px 18px; font-size: 14px; font-weight: 800; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--blue); box-shadow: 0 16px 30px rgba(82, 105, 235, .28); }
.button-primary:hover, .button-primary:focus-visible { background: var(--blue-dark); box-shadow: 0 20px 36px rgba(82, 105, 235, .38); }
.button-primary span { color: #dce2ff; font-size: 17px; }
.quiet-link { color: #9da8bd; font-size: 13px; font-weight: 700; }
.quiet-link span { display: inline-block; margin-left: 8px; color: var(--mint); transition: transform .2s ease; }
.quiet-link:hover span { transform: translateY(3px); }
.hero-meta { display: flex; gap: 24px; margin-top: 40px; color: #7e8ba5; font-size: 11px; }
.hero-meta span { position: relative; }
.hero-meta span:not(:last-child)::after { position: absolute; top: 50%; right: -14px; width: 3px; height: 3px; border-radius: 50%; background: #596681; content: ""; }

.hero-stage { position: relative; display: grid; min-height: 560px; place-items: center; }
.stage-glow { position: absolute; width: 340px; height: 340px; border-radius: 50%; background: rgba(82, 105, 235, .24); filter: blur(50px); }
.stage-ring { position: absolute; border: 1px solid rgba(144, 160, 255, .2); border-radius: 50%; }
.stage-ring-large { width: 570px; height: 570px; }
.stage-ring-small { width: 390px; height: 390px; border-color: rgba(98, 217, 160, .24); }
.phone { position: relative; z-index: 2; width: min(300px, 62%); padding: 11px 11px 14px; border: 1px solid rgba(255, 255, 255, .3); border-radius: 27px; background: #1c2942; box-shadow: 0 42px 80px rgba(0, 0, 0, .32); transform: rotate(4deg); transition: transform .35s ease; }
.phone:hover { transform: rotate(1deg) translateY(-7px); }
.phone-bar { display: flex; align-items: center; justify-content: space-between; padding: 8px 10px 11px; color: #f2f5ff; font-size: 11px; font-weight: 800; }
.phone-dot { color: var(--mint); font-size: 9px; }
.phone img { display: block; width: 100%; border-radius: 17px; }
.phone-foot { display: flex; align-items: center; justify-content: space-between; padding: 11px 8px 0; color: #fff; font-size: 11px; }
.phone-foot strong { color: var(--mint); font-size: 10px; }
.stage-note { position: absolute; z-index: 3; display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid rgba(255, 255, 255, .72); border-radius: 14px; color: #66728b; background: rgba(255, 255, 255, .92); box-shadow: 0 16px 38px rgba(10, 20, 49, .18); font-size: 10px; line-height: 1.4; backdrop-filter: blur(10px); }
.stage-note strong { color: var(--ink); font-size: 11px; }
.stage-note-top { top: 84px; right: -2px; }
.stage-note-bottom { bottom: 52px; left: 0; }
.note-symbol { display: grid; width: 29px; height: 29px; place-items: center; border-radius: 9px; color: #209d6c; background: rgba(98, 217, 160, .22); font-size: 17px; font-weight: 900; }
.note-symbol-warm { color: #a66a17; background: rgba(246, 187, 106, .23); font-size: 15px; }

.boundary { display: grid; grid-template-columns: .6fr 1fr 1.15fr; gap: 38px; padding-top: 128px; padding-bottom: 138px; }
.section-label { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.boundary h2, .workflow h2, .closing h2, .privacy-copy h2 { margin: 0 0 18px; font-size: clamp(33px, 4vw, 55px); font-weight: 820; letter-spacing: -.075em; line-height: 1.13; }
.boundary h2 em, .workflow h2 em, .closing h2 em { color: var(--blue); font-style: normal; }
.boundary-copy p, .workflow-copy > p { max-width: 450px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.9; }
.boundary-list { display: grid; align-content: start; gap: 0; }
.boundary-list > div { display: grid; grid-template-columns: 44px 1fr; gap: 15px; padding: 18px 0; border-top: 1px solid var(--line); }
.boundary-list > div:last-child { border-bottom: 1px solid var(--line); }
.list-mark { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.boundary-list p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.boundary-list strong { color: var(--ink); font-size: 15px; }

.workflow { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 86px; padding-bottom: 146px; }
.workflow-visual { position: relative; min-height: 530px; }
.screen-frame { margin: 0; padding: 10px 10px 14px; border-radius: 23px; background: #e8edf5; box-shadow: var(--shadow); }
.screen-frame img { display: block; width: 100%; border-radius: 15px; object-fit: cover; object-position: top; }
.screen-frame figcaption { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 4px 0; color: #7b879a; font-size: 11px; }
.screen-frame figcaption span { color: var(--ink); font-size: 13px; font-weight: 800; }
.screen-frame-tall { position: absolute; top: 0; left: 7%; width: min(300px, 65%); transform: rotate(-4deg); }
.screen-frame-tall img { height: 435px; }
.screen-stamp { position: absolute; right: 5%; bottom: 50px; color: var(--blue); font-size: 11px; font-weight: 900; letter-spacing: .16em; line-height: 1.25; transform: rotate(8deg); }
.steps { display: grid; gap: 0; margin: 34px 0 0; padding: 0; list-style: none; }
.steps li { display: flex; align-items: flex-start; gap: 15px; padding: 16px 0; border-top: 1px solid var(--line); }
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li > span { display: grid; width: 26px; height: 26px; flex: 0 0 26px; place-items: center; border-radius: 50%; color: var(--white); background: var(--blue); font-size: 11px; font-weight: 800; }
.steps strong, .steps small { display: block; }
.steps strong { margin-bottom: 2px; font-size: 14px; }
.steps small { color: var(--ink-soft); font-size: 12px; }

.privacy-panel { overflow: hidden; color: var(--white); background: var(--ink); }
.privacy-inner { display: grid; width: min(1160px, calc(100% - 48px)); min-height: 620px; margin-inline: auto; grid-template-columns: 1fr .8fr; align-items: center; gap: 70px; padding: 100px 0; }
.eyebrow-light { color: #a7b5ff; }
.eyebrow-mark-warm { background: var(--warm); box-shadow: 0 0 0 5px rgba(246, 187, 106, .14); }
.privacy-copy h2 span { color: #91a1ff; }
.privacy-copy > p:not(.eyebrow) { max-width: 470px; margin-bottom: 28px; color: #aab5ca; font-size: 14px; line-height: 1.9; }
.under-link { color: var(--mint); font-size: 13px; font-weight: 800; }
.under-link span { display: inline-block; margin-left: 8px; transition: transform .2s ease; }
.under-link:hover span { transform: translate(3px, -3px); }
.screen-frame-data { width: min(315px, 100%); justify-self: end; background: #25334e; box-shadow: 0 38px 70px rgba(0, 0, 0, .28); transform: rotate(5deg); }
.screen-frame-data img { height: 410px; }
.screen-frame-data figcaption { color: #aeb9cf; }
.screen-frame-data figcaption span { color: var(--white); }

.closing { display: flex; align-items: end; justify-content: space-between; gap: 40px; padding-top: 130px; padding-bottom: 116px; }
.closing h2 { margin-top: 22px; margin-bottom: 0; }
.closing-actions { padding-bottom: 8px; }
.site-footer { display: grid; grid-template-columns: 1.1fr 1.3fr .9fr; gap: 30px; align-items: start; padding-top: 27px; padding-bottom: 40px; border-top: 1px solid var(--line); color: #7d899d; font-size: 11px; }
.footer-brand { align-items: center; color: var(--ink); font-size: 15px; }
.footer-brand img { width: 27px; height: 27px; border-radius: 8px; }
.footer-brand span { margin-left: 4px; color: #7d899d; font-size: 11px; font-weight: 500; letter-spacing: 0; }
.footer-scope { line-height: 1.8; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 13px; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--blue); }
.icp-record { grid-column: 1 / -1; justify-self: center; color: #697489; font-size: 12px; transition: color .2s ease; }
.icp-record:hover, .icp-record:focus-visible { color: var(--blue); }

[data-reveal] { opacity: 1; transform: none; }
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.25,1); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }
.js [data-reveal-delay="120"] { transition-delay: 120ms; }
.js [data-reveal-delay="140"] { transition-delay: 140ms; }
:focus-visible { outline: 3px solid rgba(82, 105, 235, .45); outline-offset: 4px; }

@media (max-width: 900px) {
  .hero, .hero-inner { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 16px; padding-top: 155px; }
  .hero-stage { min-height: 520px; }
  .boundary { grid-template-columns: .5fr 1fr; }
  .boundary-list { grid-column: 2; }
  .workflow { gap: 45px; }
  .privacy-inner { gap: 36px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .section-shell, .hero-inner, .privacy-inner, .site-header { width: min(100% - 32px, 1160px); }
  .site-header { height: 72px; }
  .site-nav { gap: 14px; font-size: 11px; }
  .site-nav a:nth-child(2) { display: none; }
  .hero-inner { padding-top: 118px; }
  .hero h1 { font-size: 56px; }
  .hero-lede { font-size: 14px; }
  .hero-stage { min-height: 405px; }
  .stage-ring-large { width: 360px; height: 360px; }
  .stage-ring-small { width: 245px; height: 245px; }
  .phone { width: 58%; }
  .stage-note-top { display: none; }
  .stage-note-bottom { bottom: 20px; left: 8px; }
  .boundary { display: block; padding-top: 84px; padding-bottom: 92px; }
  .boundary-copy { margin-top: 24px; }
  .boundary-list { margin-top: 34px; }
  .workflow { display: flex; flex-direction: column; align-items: stretch; gap: 52px; padding-bottom: 96px; }
  .workflow-visual { min-height: 455px; }
  .screen-frame-tall { left: 10%; width: 59%; }
  .screen-frame-tall img { height: 370px; }
  .screen-stamp { right: 10%; bottom: 38px; }
  .privacy-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 45px; padding-top: 78px; padding-bottom: 85px; }
  .screen-frame-data { align-self: center; width: 62%; }
  .screen-frame-data img { height: 330px; }
  .closing { display: block; padding-top: 88px; padding-bottom: 84px; }
  .closing-actions { margin-top: 34px; }
  .site-footer { display: block; }
  .footer-scope { margin-top: 18px; }
  .footer-links { margin-top: 18px; justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}