:root {
  color-scheme: light;
  --ink: #111b35;
  --muted: #65708a;
  --line: #e6eaf3;
  --blue: #1769e8;
  --blue-dark: #0d49b5;
  --paper: #ffffff;
  --ground: #f7f9fd;
  --shadow: 0 24px 70px rgba(35, 70, 130, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 77% 8%, rgba(174, 209, 255, .38), transparent 25rem),
    linear-gradient(180deg, #f4f7ff 0, #fff 38rem, #f8faff 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.site-shell { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; transform: translateY(-150%); background: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { transform: none; }
.site-header { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand img { border-radius: 12px; box-shadow: 0 8px 20px rgba(31, 83, 167, .16); }
.brand span { display: flex; flex-direction: column; line-height: 1.15; }
.brand strong { font-size: 18px; letter-spacing: -.02em; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 11px; letter-spacing: .12em; }
.header-actions { display: flex; align-items: center; gap: 28px; }
.header-actions > a { color: #4c5872; font-size: 14px; font-weight: 650; text-decoration: none; }
.header-actions > a:hover { color: var(--blue); }
.language-picker select { appearance: none; border: 1px solid #dce3f0; border-radius: 999px; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%235d6880' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 13px center; color: #38445e; padding: 8px 34px 8px 14px; font-family: inherit; font-size: 13px; font-weight: 600; cursor: pointer; }
.hero { min-height: 570px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 46px; padding: 54px 60px 72px; border: 1px solid rgba(218, 228, 246, .75); border-radius: 32px; background: rgba(255, 255, 255, .76); box-shadow: var(--shadow); overflow: hidden; position: relative; backdrop-filter: blur(15px); }
.hero::before { content: ""; position: absolute; width: 360px; height: 360px; left: -220px; bottom: -220px; border: 1px solid rgba(71, 140, 241, .14); border-radius: 50%; box-shadow: 0 0 0 65px rgba(71, 140, 241, .035), 0 0 0 130px rgba(71, 140, 241, .025); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 16px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow > span:first-child { width: 21px; height: 2px; border-radius: 2px; background: currentColor; }
h1 { max-width: 650px; margin: 0; font-size: clamp(44px, 5.2vw, 70px); line-height: 1.08; letter-spacing: -.055em; }
.hero-lead { max-width: 610px; margin: 25px 0 30px; color: var(--muted); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 51px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; border-radius: 13px; padding: 12px 20px; font-size: 14px; font-weight: 750; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button svg { width: 20px; height: 20px; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, #2c7df2, #125fd7); color: #fff; box-shadow: 0 12px 25px rgba(24, 103, 222, .28); }
.button-primary:hover { box-shadow: 0 16px 30px rgba(24, 103, 222, .34); }
.button-secondary { border: 1px solid #dfe5ef; background: #fff; color: #34415e; }
.response-note { display: flex; align-items: flex-start; gap: 9px; margin: 19px 0 0; color: #748097; font-size: 12px; }
.status-dot { flex: none; width: 7px; height: 7px; margin-top: 6px; border-radius: 50%; background: #31b678; box-shadow: 0 0 0 4px rgba(49, 182, 120, .12); }
.hero-art { height: 420px; position: relative; display: grid; place-items: center; }
.hero-art::before { content: ""; position: absolute; width: 335px; height: 335px; border-radius: 50%; background: radial-gradient(circle at 36% 28%, #fff, #e9f2ff 45%, #d5e5fc); box-shadow: inset -20px -25px 70px rgba(101, 148, 220, .13), 0 35px 80px rgba(72, 119, 192, .14); }
.orbit { position: absolute; border: 1px solid rgba(77, 128, 210, .15); border-radius: 50%; }
.orbit-one { width: 410px; height: 250px; transform: rotate(-18deg); }
.orbit-two { width: 265px; height: 410px; transform: rotate(30deg); }
.shield-card { width: 230px; height: 280px; position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, .9); border-radius: 33px; background: linear-gradient(160deg, rgba(255,255,255,.9), rgba(235,244,255,.74)); box-shadow: 0 28px 60px rgba(53, 100, 176, .18), inset 0 1px 0 #fff; backdrop-filter: blur(12px); }
.shield-glow { position: absolute; width: 105px; height: 105px; top: 50px; border-radius: 50%; background: #73aafa; filter: blur(35px); opacity: .28; }
.shield { z-index: 1; width: 102px; color: #1769e8; stroke-width: 4; filter: drop-shadow(0 11px 12px rgba(23, 105, 232, .2)); }
.shield-card p { margin: 13px 0 1px; font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.shield-card > span { color: #78849c; font-size: 12px; }
.floating-pill { position: absolute; z-index: 3; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.95); background: rgba(255,255,255,.86); color: #2874e2; box-shadow: 0 15px 35px rgba(58, 101, 167, .15); backdrop-filter: blur(9px); }
.pill-lock { width: 59px; height: 59px; top: 50px; right: 17px; border-radius: 18px; transform: rotate(7deg); }
.pill-lock svg { width: 27px; }
.pill-spark { width: 49px; height: 49px; left: 17px; bottom: 64px; border-radius: 50%; font-size: 22px; color: #7d58de; }
.quick-help { padding: 108px 15px 64px; }
.section-heading h2 { margin: 0; font-size: clamp(31px, 3.6vw, 46px); line-height: 1.2; letter-spacing: -.04em; }
.section-heading > p:last-child { margin: 13px 0 0; color: var(--muted); }
.help-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; margin-top: 35px; }
.help-card { min-height: 115px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 17px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; text-decoration: none; box-shadow: 0 12px 35px rgba(45, 78, 133, .06); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.help-card:hover { transform: translateY(-4px); border-color: #cad9f2; box-shadow: 0 20px 40px rgba(45, 78, 133, .11); }
.help-card > span:nth-child(2) { display: flex; flex-direction: column; }
.help-card strong { font-size: 16px; }
.help-card small { margin-top: 4px; color: var(--muted); font-size: 12px; }
.icon-wrap { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; }
.icon-wrap svg { width: 25px; }
.icon-wrap.blue { color: #2372e9; background: #edf5ff; }
.icon-wrap.violet { color: #7a55d9; background: #f2efff; }
.icon-wrap.cyan { color: #0798a9; background: #ebfbfc; }
.arrow { width: 17px; color: #a2acc0; }
.faq-section { padding: 80px 0 105px; }
.centered { text-align: center; }
.centered .eyebrow { justify-content: center; }
.faq-list { max-width: 850px; margin: 42px auto 0; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 21px 5px; cursor: pointer; list-style: none; font-size: 16px; font-weight: 740; }
summary::-webkit-details-marker { display: none; }
.plus { flex: none; width: 27px; height: 27px; position: relative; border-radius: 50%; background: #f0f5fd; }
.plus::before, .plus::after { content: ""; position: absolute; left: 8px; right: 8px; top: 13px; height: 1.5px; background: #3b6bb4; transition: transform .2s ease; }
.plus::after { transform: rotate(90deg); }
details[open] .plus::after { transform: rotate(0); }
.answer { max-width: 790px; padding: 0 50px 26px 5px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.contact-card { min-height: 335px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 65px; margin-bottom: 72px; padding: 52px 65px; border-radius: 28px; background: linear-gradient(135deg, #176fe9 0%, #1458cc 56%, #173f9e 100%); color: #fff; box-shadow: 0 28px 70px rgba(25, 85, 188, .24); position: relative; overflow: hidden; }
.contact-card::after { content: ""; position: absolute; width: 370px; height: 370px; right: -170px; top: -190px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; box-shadow: 0 0 0 60px rgba(255,255,255,.035), 0 0 0 120px rgba(255,255,255,.025); }
.eyebrow.light { color: #cfe3ff; }
.contact-copy { position: relative; z-index: 1; }
.contact-copy h2 { margin: 0; font-size: clamp(31px, 4vw, 45px); line-height: 1.18; letter-spacing: -.04em; }
.contact-copy > p:not(.eyebrow) { max-width: 640px; margin: 16px 0 24px; color: #dce9ff; }
.button-white { width: fit-content; background: #fff; color: #155bc9; box-shadow: 0 12px 30px rgba(1, 31, 91, .2); }
.contact-tips { position: relative; z-index: 1; border: 1px solid rgba(255,255,255,.19); border-radius: 18px; background: rgba(255,255,255,.1); padding: 24px 27px; backdrop-filter: blur(8px); }
.contact-tips strong { font-size: 14px; }
.contact-tips ul { margin: 13px 0 0; padding: 0; list-style: none; color: #e4efff; font-size: 13px; }
.contact-tips li { position: relative; padding: 6px 0 6px 22px; }
.contact-tips li::before { content: "✓"; position: absolute; left: 0; color: #9dd7ff; font-weight: 800; }
.site-footer { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 20px; padding: 0 5px 45px; color: var(--muted); font-size: 12px; }
.footer-brand { grid-row: span 2; }
.footer-brand strong { color: var(--ink); font-size: 15px; }
.footer-brand small { font-size: 10px; }
.footer-links { display: flex; justify-content: flex-end; gap: 22px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--blue); }
.site-footer > p { margin: 0; text-align: right; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid rgba(32, 119, 239, .35); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
@media (max-width: 930px) {
  .hero { grid-template-columns: 1fr; padding: 58px 50px 40px; }
  .hero-art { height: 370px; }
  .help-grid { grid-template-columns: 1fr; }
  .contact-card { grid-template-columns: 1fr; gap: 28px; }
  .contact-tips { max-width: 520px; }
}
@media (max-width: 650px) {
  .site-shell { padding: 0 15px; }
  .site-header { min-height: 78px; }
  .header-actions { gap: 10px; }
  .header-actions > a { display: none; }
  .brand img { width: 42px; height: 42px; }
  .hero { min-height: 0; padding: 45px 25px 25px; border-radius: 23px; }
  h1 { font-size: 42px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-art { height: 320px; transform: scale(.88); margin: -5px 0 -17px; }
  .quick-help { padding: 80px 2px 36px; }
  .help-card { padding: 18px; }
  .faq-section { padding: 65px 5px 80px; }
  summary { min-height: 72px; padding: 18px 0; font-size: 15px; }
  .answer { padding: 0 35px 24px 0; }
  .contact-card { margin-bottom: 55px; padding: 39px 25px; border-radius: 22px; }
  .contact-card .button { width: 100%; font-size: 13px; }
  .site-footer { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { grid-row: auto; justify-self: center; }
  .footer-links { justify-content: center; }
  .site-footer > p { text-align: center; }
}