:root {
  --ink: #202431;
  --muted: #66677d;
  --accent: #6347d9;
  --accent-hover: #5036c4;
  --rule: #ddd8ec;
  --paper: #fcfcfc;
  --soft: #f0edff;
  --shadow: 0 24px 70px rgba(99,71,217,.09);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #fff;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; background: url('/assets/aitour-lavender.png') center top / cover fixed no-repeat; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 6px; border-radius: 6px; }
h1,h2,h3,p,figure { margin: 0; }
h1,h2,h3 { font-weight: 650; }
img { max-width: 100%; height: auto; }
svg { flex: none; }
.wrap { width: min(1360px, calc(100% - 11.4%)); margin-inline: auto; }
.accent { color: var(--accent); }
.skip { position: absolute; left: 24px; top: -80px; background: var(--ink); color: white; padding: 12px 18px; z-index: 10; }
.skip:focus { top: 12px; }
.site-header { min-height: 90px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; font-size: 27px; line-height: 1.2; letter-spacing: -.6px; }
.brand strong { font-weight: 650; }
.brand span { font-weight: 450; }
.site-header nav, .footer-top nav { display: flex; align-items: center; gap: 48px; font-size: 19px; font-weight: 500; }
.site-header nav a { padding-block: 8px; border-bottom: 2px solid transparent; }
.site-header nav a[aria-current] { color: var(--accent); border-color: var(--accent); }
.site-header nav a:hover { border-color: var(--accent); }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 30px; padding-top: 44px; padding-bottom: 70px; }
h1 { font-size: clamp(54px,6.35vw,98px); line-height: 1.2; letter-spacing: -.045em; }
.lead { font-size: 27px; line-height: 1.8; color: var(--muted); }
.hero .lead { margin-top: 32px; }
.hero-actions { display: flex; align-items: center; gap: 44px; flex-wrap: wrap; margin-top: 42px; font-size: 23px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 17px; min-height: 68px; padding: 16px 42px; border: 1.5px solid var(--accent); border-radius: 999px; background: var(--accent); color: #fff; font-size: 22px; font-weight: 550; line-height: 1.4; white-space: nowrap; transition: background .2s,box-shadow .2s,transform .2s; }
.button:hover { color: #fff; background: var(--accent-hover); box-shadow: 0 8px 20px rgba(99,71,217,.14); transform: translateY(-2px); }
.button-outline { background: rgba(255,255,255,.36); color: var(--accent); }
.button-outline:hover { color: var(--accent-hover); background: #f5f2ff; }
.text-link { display: inline-flex; align-items: center; gap: 12px; color: var(--accent); font-weight: 500; line-height: 1.5; }
.text-link:hover { text-decoration: underline; text-underline-offset: 6px; }
.arrow,.external { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.external { width: 22px; height: 22px; }
.product-scene { position: relative; min-width: 0; height: 650px; }
.bubble { position: absolute; display: block; border-radius: 50%; background: linear-gradient(86.75deg,#bab9ff -.68%,#e8ddff 80.31%); pointer-events: none; z-index: 0; opacity: .38; }
.scene-bubble-one { width: 300px; height: 300px; top: 5px; left: 150px; }
.scene-bubble-two { width: 380px; height: 380px; right: -35px; bottom: 0; }
.brand-tile { position: absolute; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; width: 265px; height: 276px; border: 1px solid #fff; border-radius: 30px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); font-size: 27px; font-weight: 600; transition: transform .2s, box-shadow .2s; }
.brand-tile:hover { transform: translateY(-5px); box-shadow: 0 30px 60px rgba(99,71,217,.15); }
.brand-tile img { width: 144px; height: 144px; object-fit: contain; border-radius: 28px; }
.travel-tile { left: 20px; top: 80px; }
.travel-tile img { height: 150px; border-radius: 0; }
.bill-tile { right: 45px; bottom: 48px; }
.products { padding-top: 38px; padding-bottom: 60px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 46px; }
.section-heading h2 { font-size: 59px; letter-spacing: -.04em; }
.section-heading p { color: var(--muted); font-size: 23px; line-height: 1.6; }
.product-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 26px; }
.product-card { position: relative; min-width: 0; min-height: 650px; padding: 52px 44px 44px; border: 1px solid rgba(255,255,255,.95); border-radius: 30px; background: rgba(255,255,255,.89); box-shadow: var(--shadow); overflow: hidden; }
.travel-card { background: #f2efff url('/assets/aitour-lavender.png') center / cover no-repeat; }
.card-product-name { position: relative; z-index: 1; display: flex; align-items: center; gap: 22px; }
.product-icon { width: 88px; height: 88px; flex: none; border-radius: 22px; object-fit: cover; }
.travel-icon { padding: 6px 14px; background: rgba(255,255,255,.7); object-fit: contain; }
.card-product-name h3 { font-size: 38px; line-height: 1.25; letter-spacing: -.025em; }
.card-description { position: relative; z-index: 1; color: var(--muted); font-size: 30px; line-height: 1.75; margin-top: 35px; }
.travel-watermark { position: absolute; right: 40px; bottom: 118px; width: 245px; height: 300px; object-fit: contain; opacity: .11; pointer-events: none; }
.card-actions { position: absolute; bottom: 44px; left: 44px; right: 44px; display: flex; flex-wrap: wrap; gap: 16px; z-index: 2; }
.card-actions .button { min-height: 62px; padding: 13px 28px; font-size: 20px; }
.biubill-card .card-product-name { gap: 18px; }
.biubill-card .product-icon { width: 78px; height: 78px; border-radius: 20px; }
.biubill-card .card-product-name h3 { font-size: 34px; }
.biubill-card .card-description { max-width: 245px; }
.status { position: relative; z-index: 1; margin-top: 18px; color: #77798d; font-size: 22px; line-height: 1.5; }
.card-screenshot { position: absolute; right: 30px; top: 52px; width: 232px; border: 1px solid #e1deeb; border-radius: 30px; box-shadow: 0 14px 34px rgba(40,25,85,.13); }
.biubill-card .card-product-name { max-width: calc(100% - 210px); align-items: flex-start; }
.biubill-card .card-product-name h3 { padding-top: 18px; }
.company-section { position: relative; overflow: hidden; padding-top: 90px; padding-bottom: 40px; }
.company-bubble { right: -80px; top: 0; width: 330px; height: 330px; opacity: .22; }
.company-intro { position: relative; display: grid; grid-template-columns: 1.18fr 1fr; gap: 80px; align-items: start; padding-bottom: 115px; }
.company-intro h2 { font-size: clamp(35px,4.55vw,68px); line-height: 1.48; letter-spacing: -.045em; }
.company-intro h3 { font-size: 30px; line-height: 1.5; margin: 15px 0 20px; }
.company-intro p { font-size: 24px; line-height: 1.8; color: var(--muted); margin-bottom: 26px; }
.company-intro .text-link { font-size: 25px; }
.contact-strip { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 50px 58px; border: 1px solid #fff; border-radius: 30px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.contact-strip h3,.contact-strip h2 { font-size: 36px; line-height: 1.5; }
.contact-strip .button { min-width: 240px; }
.site-footer { padding-top: 75px; padding-bottom: 32px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-bottom: 36px; }
.footer-brand { display: flex; align-items: center; gap: 28px; }
.footer-top .brand { font-size: 23px; }
.footer-brand>p { border-left: 1px solid var(--rule); padding-left: 28px; color: var(--muted); font-size: 16px; line-height: 1.6; }
.footer-top nav { font-size: 17px; font-weight: 400; gap: 32px; color: var(--muted); }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; border-top: 1px solid var(--rule); padding-top: 28px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.footer-email { display: inline-flex; align-items: center; gap: 17px; margin-left: auto; }
.footer-email span { color: #bbb3ce; }
.security-link { display: inline-flex; align-items: center; gap: 7px; }
.security-link img { width: 19px; height: 19px; }
.product-hero { display: grid; grid-template-columns: 43% minmax(0,1fr); gap: 70px; align-items: center; padding-top: 30px; padding-bottom: 38px; }
.app-preview { position: relative; min-width: 0; text-align: center; padding: 0 30px; }
.app-preview>img { position: relative; z-index: 1; display: block; width: 310px; margin-inline: auto; border: 1px solid #e1deeb; border-radius: 34px; box-shadow: 0 18px 40px rgba(40,25,85,.14); }
.app-preview figcaption { position: relative; z-index: 1; color: var(--muted); font-size: 15px; margin-top: 18px; line-height: 1.6; }
.preview-bubble-one { width: 365px; height: 365px; left: 0; top: 45px; }
.preview-bubble-two { width: 116px; height: 116px; right: 12px; bottom: 120px; }
.product-copy h1 { font-size: clamp(48px,5.45vw,82px); line-height: 1.35; }
.product-name { display: flex; align-items: center; gap: 20px; margin-top: 28px; margin-bottom: 18px; }
.product-name img { width: 72px; height: 72px; border-radius: 20px; }
.product-name h2 { font-size: 38px; }
.product-copy .lead { font-size: 23px; line-height: 1.7; }
.product-copy .hero-actions { margin-top: 30px; gap: 36px; font-size: 23px; }
.product-copy .button { padding-inline: 37px; }
.availability { color: var(--muted); font-size: 16px; line-height: 1.7; margin-top: 24px; }
.features { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 36px; padding-top: 15px; padding-bottom: 58px; }
.feature { display: flex; align-items: center; gap: 22px; min-width: 0; }
.feature+.feature { border-left: 1px solid rgba(221,216,236,.7); padding-left: 30px; }
.feature-icon { display: grid; place-items: center; flex: none; width: 76px; height: 76px; border-radius: 22px; background: rgba(235,231,255,.75); color: var(--accent); }
.feature-icon svg { width: 40px; height: 40px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.features h2 { font-size: 25px; line-height: 1.5; margin-bottom: 5px; }
.features p { font-size: 16px; color: var(--muted); line-height: 1.75; }
.resource-band { padding-block: 20px; }
.resource-content { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 44px 54px; border: 1px solid #fff; border-radius: 30px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.resource-content h2 { font-size: 30px; line-height: 1.5; margin-bottom: 12px; }
.resource-content p { color: var(--muted); font-size: 18px; line-height: 1.7; }
.resource-content nav { display: flex; flex-wrap: wrap; gap: 25px; font-size: 18px; }
.reading-panel { margin-top: 45px; margin-bottom: 55px; padding: 58px 74px 62px; background: rgba(252,252,252,.96); border: 1px solid #fff; border-radius: 30px; box-shadow: var(--shadow); }
.page-heading { padding-bottom: 32px; border-bottom: 1px solid var(--rule); }
.page-heading h1 { color: var(--accent); font-size: clamp(37px,3.65vw,55px); line-height: 1.45; letter-spacing: -.035em; }
.page-heading .lead { font-size: 21px; margin-top: 18px; }
.page-heading .button { margin-top: 28px; }
.reading { padding-top: 32px; color: var(--muted); font-size: 19px; line-height: 1.95; }
.reading h2,.reading h3 { color: var(--ink); }
.reading>h2 { font-size: 29px; line-height: 1.5; margin-bottom: 18px; }
.reading>p { max-width: 920px; margin-bottom: 22px; }
.reading>.text-link { margin-top: 22px; }
.editorial-row { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 38px; padding: 26px 0; border-top: 1px solid var(--rule); }
.editorial-row:first-of-type { margin-top: 30px; }
.editorial-row h3 { font-size: 24px; }
.contact-line { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-bottom: 30px; margin-bottom: 30px; border-bottom: 1px solid var(--rule); }
.contact-line h2 { font-size: 28px; }
.contact-line p { font-size: 17px; }
.contact-line .text-link { font-size: 27px; }
.support-note { max-width: 880px; }
.support-note h2 { font-size: 28px; margin-bottom: 12px; }
.support-note p { margin-bottom: 20px; }
.company-name { font-size: 16px; margin-top: 44px; }
.legal { max-width: 980px; }
.legal p { margin-bottom: 24px; }
.trademark-logo { width: 56px; height: 70px; margin: 0 12px; object-fit: contain; vertical-align: middle; }
.announcement { max-width: 900px; }
.announcement time { color: #7b7c90; font-size: 15px; }
.announcement h2 { font-size: 31px; line-height: 1.5; margin: 12px 0 20px; }
.announcement p { margin-bottom: 15px; }
.announcement+.announcement { margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--rule); }
.inline-links { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; font-size: 19px; margin-top: 26px; }
.not-found { min-height: 440px; }
.not-found .page-heading { border-bottom: 0; }
@media (max-width: 1250px) {
  .site-header nav { gap: 30px; }
  .hero { gap: 16px; }
  .hero .lead { font-size: 23px; }
  .hero-actions { gap: 28px; font-size: 20px; }
  .button { min-height: 60px; padding: 14px 30px; font-size: 20px; }
  .product-scene { height: 580px; }
  .brand-tile { width: 225px; height: 245px; font-size: 24px; }
  .brand-tile img { width: 126px; height: 126px; }
  .scene-bubble-one { width: 270px; height: 270px; left: 90px; }
  .scene-bubble-two { width: 300px; height: 300px; right: -10px; }
  .travel-tile { left: 0; top: 60px; }
  .bill-tile { right: 0; bottom: 35px; }
  .section-heading h2 { font-size: 49px; }
  .section-heading p { font-size: 20px; }
  .product-card { min-height: 600px; padding: 36px 30px; }
  .card-product-name { gap: 18px; }
  .product-icon { width: 72px; height: 72px; border-radius: 18px; }
  .card-product-name h3 { font-size: 31px; }
  .card-description { font-size: 26px; margin-top: 28px; }
  .card-actions { left: 30px; right: 30px; bottom: 34px; gap: 12px; }
  .card-actions .button { min-height: 54px; padding: 12px 21px; font-size: 18px; }
  .biubill-card .card-product-name { max-width: none; align-items: center; gap: 15px; }
  .biubill-card .card-product-name h3 { font-size: 30px; padding-top: 0; }
  .biubill-card .product-icon { width: 64px; height: 64px; }
  .biubill-card .card-description { max-width: 190px; }
  .status { font-size: 19px; }
  .card-screenshot { width: 175px; right: 24px; top: 170px; border-radius: 24px; }
  .biubill-card .card-actions { right: auto; }
  .travel-watermark { width: 210px; height: 260px; right: 25px; }
  .company-intro { gap: 48px; }
  .company-intro h3 { font-size: 25px; }
  .company-intro p { font-size: 21px; }
  .contact-strip { padding: 40px; }
  .contact-strip h3,.contact-strip h2 { font-size: 30px; }
  .footer-brand { display: block; }
  .footer-brand>p { margin-top: 13px; border-left: 0; padding-left: 0; font-size: 14px; }
  .footer-top nav { gap: 26px; font-size: 16px; }
  .footer-email { margin-left: 0; }
  .product-hero { gap: 45px; grid-template-columns: 39% minmax(0,1fr); }
  .product-copy h1 { font-size: 5.4vw; }
  .product-copy .lead { font-size: 20px; }
  .product-name h2 { font-size: 33px; }
  .product-copy .hero-actions { gap: 24px; font-size: 19px; }
  .product-copy .button { padding-inline: 28px; }
  .app-preview { padding: 0 20px; }
  .app-preview>img { width: 280px; }
  .preview-bubble-one { width: 290px; height: 290px; }
  .features { gap: 22px; }
  .feature { gap: 16px; }
  .feature+.feature { padding-left: 20px; }
  .feature-icon { width: 60px; height: 60px; border-radius: 18px; }
  .feature-icon svg { width: 32px; height: 32px; }
  .features h2 { font-size: 23px; }
  .features p { font-size: 15px; }
  .resource-content { padding: 40px; }
  .resource-content nav { display: grid; gap: 13px; }
  .reading-panel { padding: 48px; }
}
@media (max-width: 1000px) and (min-width: 901px) {
  .card-actions .button { font-size: 16px; padding-inline: 17px; }
  .card-actions { gap: 10px; }
  .biubill-card .card-description { font-size: 24px; max-width: 160px; }
  .card-screenshot { width: 158px; right: 19px; }
  .biubill-card .card-actions .button { padding-inline: 20px; }
}
@media (max-width: 900px) {
  .wrap { width: calc(100% - 64px); }
  .site-header { min-height: 86px; }
  .brand { font-size: 23px; }
  .site-header nav { font-size: 16px; gap: 22px; }
  .hero { padding-top: 50px; padding-bottom: 35px; grid-template-columns: 1fr; }
  .hero h1 { font-size: 76px; }
  .hero .lead { font-size: 23px; }
  .product-scene { height: 400px; max-width: 600px; width: 100%; margin: 5px auto 0; }
  .travel-tile { left: 45px; top: 20px; }
  .bill-tile { right: 25px; bottom: 0; }
  .scene-bubble-one { left: 120px; top: 0; }
  .scene-bubble-two { width: 290px; height: 290px; right: 0; }
  .products { padding-top: 55px; }
  .section-heading { margin-bottom: 28px; }
  .section-heading h2 { font-size: 44px; }
  .section-heading p { font-size: 18px; }
  .product-grid { grid-template-columns: 1fr; gap: 24px; }
  .product-card { min-height: 560px; padding: 42px; }
  .card-product-name h3 { font-size: 36px; }
  .card-product-name { gap: 22px; }
  .product-icon { width: 88px; height: 88px; }
  .card-description { font-size: 28px; }
  .card-actions { left: 42px; right: 42px; bottom: 40px; }
  .card-actions .button { padding-inline: 28px; font-size: 20px; }
  .travel-watermark { right: 65px; bottom: 110px; width: 250px; height: 300px; }
  .biubill-card { min-height: 610px; }
  .biubill-card .card-product-name { max-width: 350px; }
  .biubill-card .card-product-name h3 { font-size: 33px; }
  .biubill-card .product-icon { width: 78px; height: 78px; }
  .biubill-card .card-description { max-width: 230px; }
  .card-screenshot { top: 45px; right: 35px; width: 230px; border-radius: 30px; }
  .company-section { padding-top: 45px; }
  .company-intro { grid-template-columns: 1fr; gap: 32px; padding-bottom: 50px; }
  .company-intro h2 { font-size: 52px; }
  .company-intro h3 { margin-top: 0; }
  .company-intro p { font-size: 20px; }
  .contact-strip { padding: 36px; }
  .contact-strip h3,.contact-strip h2 { font-size: 26px; }
  .contact-strip .button { min-width: 185px; font-size: 19px; }
  .footer-top { align-items: flex-start; flex-direction: column; gap: 28px; }
  .site-footer { padding-top: 55px; }
  .product-hero { grid-template-columns: 38% minmax(0,1fr); gap: 30px; padding-top: 40px; }
  .product-copy h1 { font-size: 45px; }
  .product-name { gap: 14px; margin-top: 20px; }
  .product-name img { width: 55px; height: 55px; border-radius: 15px; }
  .product-name h2 { font-size: 27px; }
  .product-copy .lead { font-size: 17px; }
  .desktop-break { display: none; }
  .product-copy .hero-actions { gap: 18px; margin-top: 22px; font-size: 17px; }
  .product-copy .button { padding: 13px 23px; min-height: 52px; font-size: 17px; }
  .availability { font-size: 13px; margin-top: 20px; }
  .app-preview { padding: 0; }
  .app-preview>img { width: 235px; border-radius: 26px; }
  .app-preview figcaption { font-size: 12px; }
  .preview-bubble-one { left: -25px; width: 250px; height: 250px; }
  .preview-bubble-two { width: 80px; height: 80px; right: -15px; }
  .features { grid-template-columns: 1fr; padding-top: 25px; gap: 24px; }
  .feature+.feature { padding-left: 0; border-left: 0; }
  .features h2 { font-size: 23px; }
  .features p { font-size: 17px; }
  .feature-icon { width: 68px; height: 68px; }
  .resource-content { padding: 35px; }
  .resource-content h2 { font-size: 26px; }
  .resource-content p { font-size: 17px; }
  .resource-content nav { font-size: 16px; min-width: 128px; }
  .reading-panel { margin-top: 30px; padding: 38px; }
  .page-heading h1 { font-size: 41px; }
  .page-heading .lead { font-size: 19px; }
  .reading { font-size: 18px; }
  .editorial-row { grid-template-columns: 150px 1fr; gap: 25px; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { min-height: 112px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 16px; padding-block: 22px 16px; }
  .brand { font-size: 22px; gap: 7px; }
  .site-header nav { flex-wrap: wrap; gap: 24px; font-size: 15px; }
  .site-header nav a { padding-block: 5px; }
  .hero { padding-top: 30px; padding-bottom: 16px; gap: 25px; }
  .hero h1 { font-size: clamp(38px,11.2vw,48px); line-height: 1.3; letter-spacing: -.045em; }
  .hero .lead { font-size: 17px; line-height: 1.85; margin-top: 23px; }
  .hero .lead br { display: none; }
  .hero-actions { gap: 23px; font-size: 17px; margin-top: 25px; }
  .button { min-height: 50px; font-size: 17px; padding: 12px 25px; gap: 12px; }
  .arrow,.external { width: 20px; height: 20px; }
  .product-scene { height: 310px; margin-top: 5px; }
  .brand-tile { width: 166px; height: 182px; gap: 10px; font-size: 19px; border-radius: 26px; }
  .brand-tile img { width: 94px; height: 94px; border-radius: 20px; }
  .travel-tile img { width: 85px; height: 100px; border-radius: 0; }
  .travel-tile { left: 4px; top: 12px; }
  .bill-tile { right: 0; bottom: 8px; }
  .scene-bubble-one { left: 55px; top: 0; width: 190px; height: 190px; }
  .scene-bubble-two { width: 205px; height: 205px; right: 0; bottom: 0; }
  .products { padding-top: 28px; padding-bottom: 30px; }
  .section-heading { display: block; margin-bottom: 25px; }
  .section-heading h2 { font-size: 35px; }
  .section-heading p { font-size: 16px; margin-top: 13px; }
  .product-grid { gap: 22px; }
  .product-card { padding: 28px 25px; min-height: 470px; border-radius: 30px; }
  .card-product-name { gap: 15px; }
  .product-icon { width: 65px; height: 65px; border-radius: 18px; }
  .travel-icon { padding: 5px 11px; }
  .card-product-name h3 { font-size: 26px; }
  .card-description { font-size: 23px; line-height: 1.7; margin-top: 25px; }
  .travel-watermark { right: 24px; bottom: 86px; width: 175px; height: 215px; }
  .card-actions { left: 25px; right: 25px; bottom: 28px; gap: 10px; }
  .card-actions .button { min-height: 47px; padding: 11px 18px; font-size: 15px; gap: 8px; }
  .card-actions .external { width: 17px; height: 17px; }
  .biubill-card { min-height: 0; }
  .biubill-card .card-product-name { max-width: none; gap: 14px; }
  .biubill-card .product-icon { width: 60px; height: 60px; border-radius: 16px; }
  .biubill-card .card-product-name h3 { font-size: 25px; padding: 0; }
  .biubill-card .card-description { max-width: none; margin-top: 23px; }
  .status { font-size: 17px; margin-top: 12px; }
  .biubill-card .card-actions { position: static; margin-top: 23px; }
  .card-screenshot { position: relative; display: block; top: auto; right: auto; width: 215px; margin: 30px auto 4px; border-radius: 27px; }
  .company-section { padding-top: 37px; padding-bottom: 18px; }
  .company-intro { gap: 26px; padding-bottom: 36px; }
  .company-intro h2 { font-size: clamp(29px,8.1vw,36px); line-height: 1.55; letter-spacing: -.04em; }
  .company-intro h3 { font-size: 21px; margin-bottom: 13px; }
  .company-intro p { font-size: 17px; line-height: 1.85; margin-bottom: 19px; }
  .company-intro p br { display: none; }
  .company-intro .text-link { font-size: 18px; }
  .company-bubble { width: 230px; height: 230px; top: 25px; right: -110px; }
  .contact-strip { flex-direction: column; align-items: flex-start; gap: 22px; padding: 28px 25px; }
  .contact-strip h3,.contact-strip h2 { font-size: 23px; line-height: 1.65; }
  .contact-strip .button { min-width: 0; font-size: 17px; }
  .site-footer { padding-top: 38px; padding-bottom: 26px; }
  .footer-top { gap: 25px; padding-bottom: 26px; }
  .footer-top .brand { font-size: 21px; }
  .footer-brand>p { font-size: 13px; }
  .footer-top nav { flex-wrap: wrap; gap: 15px 23px; font-size: 14px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; padding-top: 22px; gap: 10px; font-size: 11px; }
  .footer-email { gap: 12px; }
  .security-link img { width: 16px; height: 16px; }
  .product-hero { grid-template-columns: 1fr; padding-top: 32px; padding-bottom: 30px; gap: 34px; }
  .product-copy { grid-row: 1; }
  .product-copy h1 { font-size: clamp(37px,10.9vw,47px); line-height: 1.35; }
  .product-name { margin-top: 23px; margin-bottom: 17px; }
  .product-name h2 { font-size: 26px; }
  .product-copy .lead { font-size: 17px; line-height: 1.8; }
  .product-copy .hero-actions { gap: 21px; font-size: 16px; margin-top: 25px; }
  .product-copy .button { padding: 12px 21px; font-size: 16px; }
  .availability { font-size: 12px; }
  .app-preview { width: min(350px,100%); margin-inline: auto; }
  .app-preview>img { width: 242px; border-radius: 28px; }
  .preview-bubble-one { left: 0; width: 235px; height: 235px; }
  .preview-bubble-two { right: 0; }
  .app-preview figcaption { font-size: 12px; }
  .features { gap: 26px; padding-bottom: 30px; }
  .feature { gap: 18px; }
  .feature-icon { width: 60px; height: 60px; border-radius: 18px; }
  .features h2 { font-size: 22px; }
  .features p { font-size: 15px; }
  .resource-content { display: block; padding: 28px 25px; }
  .resource-content h2 { font-size: 24px; }
  .resource-content p { font-size: 16px; }
  .resource-content nav { margin-top: 25px; gap: 15px; font-size: 17px; }
  .reading-panel { padding: 28px 24px 32px; margin-top: 26px; margin-bottom: 32px; }
  .page-heading { padding-bottom: 23px; }
  .page-heading h1 { font-size: clamp(28px,7.6vw,34px); line-height: 1.5; letter-spacing: -.03em; }
  .page-heading .lead { font-size: 16px; margin-top: 15px; }
  .reading { padding-top: 25px; font-size: 16px; line-height: 1.9; }
  .reading>h2 { font-size: 23px; }
  .editorial-row { display: block; padding: 23px 0; }
  .editorial-row h3 { font-size: 22px; margin-bottom: 10px; }
  .contact-line { flex-direction: column; align-items: flex-start; gap: 12px; padding-bottom: 24px; margin-bottom: 24px; }
  .contact-line h2,.support-note h2 { font-size: 24px; }
  .contact-line p { font-size: 15px; }
  .contact-line .text-link { font-size: 21px; }
  .company-name { font-size: 14px; margin-top: 32px; }
  .announcement time { font-size: 13px; }
  .announcement h2 { font-size: 24px; }
  .inline-links { gap: 20px; font-size: 16px; }
  .not-found { min-height: 350px; }
}
@media (max-width: 360px) {
  .wrap { width: calc(100% - 32px); }
  .hero-actions { gap: 18px; font-size: 15px; }
  .hero-actions .button { padding-inline: 20px; font-size: 15px; }
  .brand-tile { width: 148px; height: 164px; font-size: 17px; }
  .brand-tile img { width: 85px; height: 85px; }
  .travel-tile img { height: 92px; }
  .product-scene { height: 285px; }
  .product-card { padding-inline: 22px; }
  .card-product-name h3 { font-size: 24px; }
  .card-product-name { gap: 12px; }
  .product-icon { width: 56px; height: 56px; }
  .card-actions { left: 22px; right: 22px; }
  .travel-card { min-height: 510px; }
  .travel-card .card-actions { max-width: 180px; }
  .travel-watermark { bottom: 135px; width: 160px; height: 195px; }
  .biubill-card .product-icon { width: 52px; height: 52px; }
  .biubill-card .card-product-name h3 { font-size: 23px; }
  .biubill-card .card-product-name { gap: 12px; }
  .reading-panel { padding-inline: 20px; }
  .product-copy .hero-actions { gap: 17px; font-size: 15px; }
  .product-copy .button { font-size: 15px; padding-inline: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button,.brand-tile { transition: none; }
  .button:hover,.brand-tile:hover { transform: none; }
}