:root {
  --paper: #f7f8f3;
  --white: #ffffff;
  --ink: #1f3331;
  --muted: #70817d;
  --teal: #3f8880;
  --teal-dark: #286a66;
  --blue: #a9d3d3;
  --yellow: #c18a15;
  --line: #d5e1dc;
  --soft-blue: #eaf2f4;
  --soft-green: #eaf3ef;
  --mint: #dcece4;
  --shadow: 0 22px 60px rgba(51, 92, 82, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.7; }
body::before { position: fixed; z-index: -1; inset: 0; pointer-events: none; content: ""; opacity: .42; background: radial-gradient(ellipse at 84% 7%, rgba(169, 211, 211, .34), transparent 31%), radial-gradient(ellipse at 8% 36%, rgba(220, 236, 228, .5), transparent 30%); }
a { color: inherit; }
.shell { width: min(1160px, calc(100% - 56px)); margin: 0 auto; }
.site-header { position: sticky; z-index: 10; top: 0; display: flex; align-items: center; min-height: 78px; gap: 32px; padding: 0 max(28px, calc((100% - 1160px) / 2)); border-bottom: 1px solid rgba(213, 225, 220, .8); background: rgba(247, 248, 243, .88); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-size: 1.08rem; font-weight: 760; text-decoration: none; }
.brand-mark { width: 38px; height: 38px; border-radius: 13px; box-shadow: 0 8px 20px rgba(48, 111, 103, .14); background-size: 140%; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-links a, .site-footer a { color: var(--muted); text-decoration: none; transition: color .18s ease; }
.nav-links a:hover, .site-footer a:hover, .text-link:hover { color: var(--teal-dark); }
.language-switch { min-height: 36px; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--teal-dark); background: rgba(255, 255, 255, .6); font: inherit; font-size: .84rem; cursor: pointer; }
.language-switch:hover { border-color: var(--blue); }
main { width: 100%; }
.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .65fr); align-items: center; gap: 88px; min-height: 600px; padding-top: 64px; padding-bottom: 64px; }
.hero::before, .hero::after { position: absolute; z-index: -1; content: ""; border: 1px solid rgba(63, 136, 128, .15); border-radius: 50%; transform: rotate(-18deg); pointer-events: none; }
.hero::before { width: 560px; height: 160px; right: -180px; top: 90px; }
.hero::after { width: 640px; height: 190px; right: -230px; top: 125px; opacity: .6; }
.hero-copy { max-width: 640px; }
.eyebrow { margin: 0 0 14px; color: var(--teal); font-size: .74rem; font-weight: 760; letter-spacing: .12em; }
.hero h1, .section h2, .company-inner h2, .page-title { margin: 0; color: var(--ink); font-weight: 650; letter-spacing: 0; line-height: 1.2; }
.hero h1 { max-width: 660px; font-size: 3.25rem; line-height: 1.24; }
.hero-text { max-width: 560px; margin: 25px 0 0; color: var(--muted); font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 20px; border: 0; border-radius: 999px; font-weight: 700; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.primary { color: #f7fffb; background: var(--teal-dark); box-shadow: 0 10px 24px rgba(40, 106, 102, .2); }
.primary:hover { background: var(--teal); box-shadow: 0 14px 28px rgba(40, 106, 102, .24); }
.secondary { border: 1px solid var(--line); color: var(--teal-dark); background: rgba(255, 255, 255, .4); }
.secondary:hover { border-color: var(--blue); }
.hero-product { position: relative; display: grid; justify-items: center; align-content: center; gap: 16px; min-height: 340px; overflow: hidden; padding: 34px; border: 1px solid rgba(213, 225, 220, .92); border-radius: 30px; background: rgba(255, 255, 255, .67); box-shadow: var(--shadow); text-align: center; }
.hero-product::before, .hero-product::after { position: absolute; content: ""; border: 1px solid rgba(63, 136, 128, .2); border-radius: 50%; pointer-events: none; }
.hero-product::before { width: 290px; height: 290px; right: -105px; top: -82px; }
.hero-product::after { width: 390px; height: 130px; right: -130px; bottom: 42px; border-color: rgba(169, 211, 211, .8); transform: rotate(-22deg); }
.hero-product > * { position: relative; z-index: 1; }
.hero-app-icon { display: block; width: 132px; height: 132px; object-fit: cover; border-radius: 31px; box-shadow: 0 18px 34px rgba(48, 111, 103, .16); }
.hero-product-copy { max-width: 350px; }
.product-kicker { color: var(--blue); font-size: .78rem; font-weight: 750; }
.hero-product h2 { margin: 4px 0; color: var(--ink); font-size: 1.65rem; font-weight: 720; }
.hero-product p { margin: 0; color: var(--muted); font-size: .9rem; }
.product-section { background: rgba(220, 236, 228, .28); }
.section { padding-top: 64px; padding-bottom: 68px; }
.section-heading { margin-bottom: 34px; }
.section-intro { max-width: 660px; margin: 14px 0 0; color: var(--muted); font-size: 1rem; }
.section h2 { max-width: 760px; font-size: 2.25rem; }
.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.capability { min-height: 165px; padding: 18px 20px 18px 0; border-top: 2px solid var(--teal); }
.capability:nth-child(2) { border-color: var(--blue); }
.capability:nth-child(3) { border-color: var(--yellow); }
.capability-number { color: var(--muted); font-size: .8rem; font-weight: 750; }
.capability h3 { margin: 16px 0 7px; color: var(--ink); font-size: 1.13rem; font-weight: 700; }
.capability p { max-width: 330px; margin: 0; color: var(--muted); font-size: .94rem; }
.company-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(220, 236, 228, .45); }
.company-inner { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 72px; padding-top: 58px; padding-bottom: 58px; }
.company-inner h2 { max-width: 550px; font-size: 2rem; }
.company-copy p { margin: 0; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 17px; color: var(--teal-dark); font-weight: 700; text-decoration: none; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); background: rgba(255, 255, 255, .5); }
.footer-main { display: grid; grid-template-columns: 1.1fr .9fr; gap: 76px; padding-top: 38px; padding-bottom: 32px; }
.footer-contact h2 { margin: 0; color: var(--ink); font-size: 1.8rem; font-weight: 650; }
.footer-contact .eyebrow { margin-bottom: 8px; }
.footer-company { margin: 17px 0 4px; color: var(--ink); font-weight: 700; }
.footer-description { max-width: 570px; margin: 0; font-size: .9rem; }
.footer-details { display: grid; align-content: center; gap: 14px; }
.footer-details > div { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 12px; align-items: baseline; }
.footer-label { color: var(--ink); font-size: .8rem; font-weight: 750; }
.footer-details a { color: var(--blue); font-weight: 650; overflow-wrap: anywhere; }
.site-footer .footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 16px; padding-bottom: 20px; border-top: 1px solid var(--line); font-size: .84rem; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 22px; }
.legal-panel { max-width: 880px; margin-top: 28px; color: var(--muted); line-height: 1.85; }
.legal-panel h2 { margin-top: 30px; color: var(--ink); font-size: 1.3rem; }
.legal-panel p { white-space: pre-line; }
.page-title { font-size: 2.6rem; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; margin-top: 30px; }
.feature-card { padding: 18px 0; border-top: 1px solid var(--line); }
.feature-card strong { display: block; margin-bottom: 4px; color: var(--ink); font-weight: 700; }
.feature-card span, .location { color: var(--muted); }
.email-link { color: var(--teal-dark); font-size: 1.05rem; font-weight: 700; text-decoration: none; overflow-wrap: anywhere; }
.deletion-code-row { display: flex; gap: 10px; align-items: center; }
.deletion-code-row input { flex: 1; }
.deletion-code-row .button { white-space: nowrap; }
.deletion-success { color: var(--teal-dark); font-weight: 600; }
.recovery-form { display: grid; gap: 10px; max-width: 640px; }
.recovery-form label { color: var(--ink); font-weight: 700; }
.recovery-form input, .recovery-form textarea { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: rgba(255, 255, 255, .78); font: inherit; }
.recovery-form input:focus, .recovery-form textarea:focus { outline: 2px solid rgba(63, 136, 128, .24); border-color: var(--teal); }
.recovery-form input:disabled, .recovery-form textarea:disabled { color: var(--muted); background: rgba(213, 225, 220, .35); }
.recovery-action-panel { margin-top: 14px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: rgba(220, 236, 228, .34); }
.recovery-action-panel h2 { margin: 0; color: var(--ink); font-size: 1.25rem; }
.recovery-action-panel p { margin: 6px 0 14px; }

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; gap: 34px; min-height: auto; padding-top: 56px; padding-bottom: 58px; }
  .hero::before, .hero::after { right: -310px; top: 430px; }
  .hero-product { min-height: 300px; }
  .company-inner { grid-template-columns: 1fr; gap: 22px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 36px, 1180px); }
  .site-header { flex-wrap: wrap; gap: 12px; padding: 12px 18px; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; gap: 9px; font-size: .82rem; }
  .hero { padding-top: 40px; padding-bottom: 42px; }
  .hero h1 { font-size: 2.15rem; line-height: 1.3; }
  .hero-text { font-size: 1rem; }
  .hero-product { min-height: 280px; padding: 28px; }
  .hero-app-icon { width: 112px; height: 112px; border-radius: 31px; }
  .section { padding-top: 70px; padding-bottom: 70px; }
  .section h2, .company-inner h2 { font-size: 1.8rem; }
  .capability-grid { grid-template-columns: 1fr; gap: 8px; }
  .capability { min-height: auto; padding-top: 14px; padding-bottom: 20px; }
  .capability h3 { margin-top: 10px; }
  .company-inner { gap: 16px; padding-top: 48px; padding-bottom: 48px; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; padding-top: 38px; padding-bottom: 32px; }
  .footer-contact h2 { font-size: 1.55rem; }
  .footer-details > div { grid-template-columns: 54px minmax(0, 1fr); gap: 10px; }
  .site-footer .footer-bottom { align-items: flex-start; flex-direction: column; gap: 5px; }
  .footer-legal { gap: 12px 18px; }
  .page-title { font-size: 2.1rem; }
  .feature-grid { grid-template-columns: 1fr; }
}