:root {
  color-scheme: light;
  --ink: #0f1d2b;
  --navy: #112d4a;
  --blue: #426b84;
  --muted: #66727c;
  --gold: #d3a84a;
  --paper: #ffffff;
  --surface: #f6f8f9;
  --line: #e2e7ea;
  --serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --sans: "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, video:focus-visible, [role="tabpanel"]:focus-visible { outline: 3px solid #8bb2ca; outline-offset: 5px; }
a, button { transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease; }
svg { display: block; }
h1, h2, h3, p { margin-top: 0; }
.wrap { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
[hidden] { display: none !important; }

.skip-link { position: fixed; top: -100px; left: 24px; z-index: 30; padding: 13px 18px; border-radius: 5px; background: var(--navy); color: white; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 24px; min-height: 82px; background: #ffffffed; border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; font-size: 1.25rem; font-weight: 700; letter-spacing: -.55px; }
.brand-mark { width: 31px; height: 33px; padding: 4px; color: var(--navy); }
.brand-company { align-self: flex-end; margin: 0 0 4px -4px; color: #89929a; font-size: .625rem; font-weight: 600; letter-spacing: 1.2px; }
.page-tabs { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.page-tabs a { position: relative; padding: 30px 0 28px; color: #56616a; font-size: .875rem; font-weight: 500; white-space: nowrap; }
.page-tabs a::after { content: ""; position: absolute; right: 0; bottom: -1px; left: 0; height: 2px; background: transparent; }
.page-tabs a:hover { color: var(--navy); }
.page-tabs a[aria-selected="true"] { color: var(--ink); }
.page-tabs a[aria-selected="true"]::after { background: var(--gold); }
.language-toggle { flex-shrink: 0; min-height: 38px; padding: 8px 15px; color: var(--navy); background: white; border: 1px solid #ccd4d9; border-radius: 5px; font-size: .8125rem; font-weight: 600; cursor: pointer; }
.language-toggle:hover { background: var(--surface); border-color: #9baab4; }

.page-panel { min-height: 68vh; animation: enter .3s ease both; }
@keyframes enter { from { opacity: .45; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; color: var(--blue); font-size: .75rem; font-weight: 650; line-height: 1.6; letter-spacing: 2px; text-transform: uppercase; }
.status-dot { width: 7px; height: 7px; flex-shrink: 0; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px #f6edd6; }

.hero { position: relative; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); align-items: center; gap: 58px; padding-top: 72px; padding-bottom: 72px; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0 calc(50% - 50vw); background-color: #fdfefd; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='146' viewBox='0 0 84 146'%3E%3Cpath d='M42 1 83 24.5v48L42 96 1 72.5v-48L42 1Zm0 96 41 23.5V145M1 145v-24.5L42 97' fill='none' stroke='%23dbe2e6' stroke-width='.75'/%3E%3C/svg%3E"); background-size: 84px 146px; }
.hero::after { content: ""; position: absolute; z-index: -1; inset: 0 calc(50% - 50vw); background: linear-gradient(90deg, #ffffff 0%, #ffffffd9 58%, #ffffff42 100%); }
.hero-copy { max-width: 600px; }
h1 { max-width: 600px; margin-bottom: 26px; font-family: var(--serif); font-size: clamp(3.5rem, 5.2vw, 5rem); font-weight: 400; line-height: 1.02; letter-spacing: -3.6px; }
h1 em { color: var(--blue); font-family: inherit; font-weight: 400; }
.hero-bottom p { max-width: 520px; margin: 0; color: #56646e; font-size: 1.0625rem; line-height: 1.75; }
.hero-visual { position: relative; display: flex; align-items: flex-end; width: 100%; min-height: 0; aspect-ratio: 4 / 3; margin: 0; padding: 16px; overflow: hidden; isolation: isolate; background: #dfe5e8; border: 1px solid #d8e0e4; border-radius: 10px; box-shadow: 0 26px 60px -42px #16263770; }
.hero-photo { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.52) contrast(.94) brightness(1.03); }
.hero-visual::after { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg, transparent 30%, #0f1d2b66 100%); }
.results-panel { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 13px 16px; width: 100%; padding: 17px 18px; background: #fffffff2; border: 1px solid #ffffff; border-radius: 7px; box-shadow: 0 14px 34px #11213122; backdrop-filter: blur(10px); }
.results-panel h3 { grid-column: 1 / -1; margin: 0; color: var(--navy); font-size: .6875rem; font-weight: 650; line-height: 1.5; letter-spacing: 1px; text-transform: uppercase; }
.result { display: flex; flex-direction: column-reverse; gap: 5px; padding-left: 14px; border-left: 1px solid var(--line); }
.result:first-of-type { padding-left: 0; border-left: 0; }
.result strong { color: var(--ink); font-family: var(--serif); font-size: 1.72rem; font-weight: 400; line-height: 1.1; letter-spacing: -.7px; white-space: nowrap; }
.result small { font-family: var(--sans); font-size: .875rem; font-weight: 500; letter-spacing: 0; }
.result > span { color: var(--muted); font-size: .75rem; line-height: 1.45; }
.result-after strong { color: var(--blue); }

.content-section { padding-top: 90px; }
#overview { padding-top: 86px; padding-bottom: 16px; }
.overview-grid > div { display: grid; grid-template-columns: .95fr 1fr 1fr; gap: 36px 52px; padding-top: 34px; border-top: 1px solid var(--line); }
.overview-grid h2, .overview-grid p { margin: 0; }
.retail-content h2, .section-heading h2 { margin-bottom: 28px; font-family: var(--serif); font-size: clamp(2.45rem, 4.2vw, 3.65rem); font-weight: 400; line-height: 1.08; letter-spacing: -2.1px; }
.retail-content h2 em, .section-heading h2 em { color: var(--blue); font-family: inherit; font-weight: 400; }
.retail-content p, .section-heading > p { color: var(--muted); font-size: 1rem; line-height: 1.85; }
.retail-content .eyebrow { color: var(--blue); font-size: .75rem; }
.retail-content h3 { font-size: 1.1rem; font-weight: 600; line-height: 1.45; letter-spacing: -.3px; }

.industries { padding-top: 104px; padding-bottom: 96px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px; margin-bottom: 38px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 330px; margin: 0 0 4px; }
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: white; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.industry-grid article { min-width: 0; padding: 30px 25px 34px; border-right: 1px solid var(--line); }
.industry-grid article:first-child { padding-left: 0; }
.industry-grid article:last-child { padding-right: 0; border-right: 0; }
.industry-top { display: flex; align-items: center; justify-content: space-between; }
.industry-icon { width: 28px; height: 30px; color: var(--blue); }
.industry-number { color: #8c969d; font-size: .75rem; font-variant-numeric: tabular-nums; }
.industry-grid h3 { margin: 36px 0 10px; font-family: var(--serif); font-size: 1.45rem; font-weight: 400; letter-spacing: -.5px; }
.industry-grid p { margin: 0; color: var(--muted); font-size: .9375rem; line-height: 1.7; }

.demo { margin-bottom: 90px; padding: 27px; background: white; border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 22px 55px -45px #172b3e80; }
.demo-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 0 22px; }
.demo-top h2 { margin: 0; font-family: var(--serif); font-size: 1.45rem; font-weight: 400; letter-spacing: -.4px; }
.demo-label { color: var(--muted); font-size: .75rem; letter-spacing: 1.5px; }
.demo-label > span:first-child { margin-right: 7px; color: var(--gold); }
.video-stage { overflow: hidden; background: #101820; border-radius: 5px; }
video { display: block; width: 100%; max-height: 660px; aspect-ratio: 16/9; object-fit: contain; background: #101820; }
.demo-bottom { padding-top: 17px; color: var(--muted); font-size: .8125rem; }

#solutions-panel, #pricing-panel { padding-bottom: 92px; }
#challenges > h2 { max-width: 850px; font-size: clamp(3rem, 5.6vw, 5rem); }
.challenge-list { display: grid; grid-template-columns: repeat(2, 1fr); list-style: none; counter-reset: challenge; margin: 54px 0 0; padding: 0; border-top: 1px solid var(--line); }
.challenge-list li { position: relative; counter-increment: challenge; min-height: 215px; padding: 32px 44px 34px 72px; border-bottom: 1px solid var(--line); }
.challenge-list li:nth-child(odd) { border-right: 1px solid var(--line); padding-left: 48px; }
.challenge-list li:last-child { grid-column: 1 / -1; min-height: 180px; }
.challenge-list li::before { content: counter(challenge, decimal-leading-zero); position: absolute; top: 35px; left: 18px; color: var(--gold); font-size: .75rem; font-weight: 700; letter-spacing: 1px; }
.challenge-list li:nth-child(even)::before { left: 42px; }
.challenge-list h3 { margin: 0 0 13px; font-family: var(--serif); font-size: 1.5rem; font-weight: 400; }
.challenge-list p { max-width: 440px; margin: 0; }

#pricing > .eyebrow, #pricing > h2 { justify-content: center; text-align: center; }
#pricing > h2 { font-size: clamp(3rem, 5.6vw, 5rem); }
.pricing-grid { display: grid; grid-template-columns: .9fr 1.15fr; gap: 28px; max-width: 990px; margin: 52px auto 0; }
.price-panel, .support-panel { background: white; border: 1px solid var(--line); border-radius: 9px; }
.price-panel { position: relative; display: flex; flex-direction: column; align-items: flex-start; padding: 38px; }
.plan-symbol { display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 30px; color: var(--navy); background: #f4e7c6; border-radius: 50%; font-size: 1.9rem; }
.price-panel h3 { margin: 0; color: var(--blue); font-size: .75rem; font-weight: 650; letter-spacing: 1.7px; }
.price-panel .trial { margin: 16px 0 42px; color: var(--ink); font-family: var(--serif); font-size: 3.2rem; line-height: 1.05; letter-spacing: -1.8px; }
.price-panel .price-start { margin: auto 0 16px; color: var(--muted); font-size: .875rem; }
.pricing-contact { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 15px 18px; color: white; background: var(--navy); border-radius: 5px; font-size: .875rem; font-weight: 600; }
.pricing-contact:hover { background: #1b456a; transform: translateY(-1px); }
.support-panel { padding: 34px; }
.support-panel h3 { margin: 0 0 22px; font-family: var(--serif); font-size: 1.45rem; font-weight: 400; }
.support-panel dl { margin: 0; }
.support-panel dl > div { position: relative; padding: 21px 0 21px 29px; border-top: 1px solid var(--line); }
.support-panel dl > div::before { content: "✓"; position: absolute; top: 23px; left: 0; color: var(--blue); font-size: .8125rem; }
.support-panel dt { margin-bottom: 7px; font-size: 1rem; font-weight: 650; }
.support-panel dd { margin: 0; color: var(--muted); font-size: .9375rem; line-height: 1.75; }

.contact-section { padding-top: 92px; padding-bottom: 96px; }
.contact-section h2 { max-width: 950px; font-size: clamp(3.2rem, 6vw, 5.4rem); }
.contact-intro { max-width: 650px; }
.contact-card { position: relative; display: flex; align-items: center; gap: 26px; margin: 46px 0 25px; padding: 34px; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; }
.contact-symbol { color: var(--gold); font-family: var(--serif); font-size: 3.1rem; line-height: 1; }
.contact-card h3 { margin-bottom: 9px; color: var(--blue); font-size: .75rem; font-weight: 650; letter-spacing: 1.6px; text-transform: uppercase; }
.contact-email { font-family: var(--serif); font-size: clamp(1.3rem, 2.6vw, 2rem); letter-spacing: -.5px; overflow-wrap: anywhere; }
.contact-email:hover { color: var(--blue); }
.contact-card .button { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; margin-left: auto; padding: 16px 20px; color: white; background: var(--navy); border-radius: 5px; font-size: .875rem; font-weight: 600; white-space: nowrap; }
.contact-card .button:hover { background: #1b456a; transform: translateY(-1px); }
.contact-note { max-width: 760px; font-size: .875rem !important; }

footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 31px; border-top: 1px solid var(--line); }
footer .brand { font-size: 1.1rem; }
footer p, footer > span { margin: 0; color: var(--muted); font-size: .75rem; }
html[lang="zh-CN"] h1 { font-size: clamp(3.5rem, 6.3vw, 5.5rem); line-height: 1.16; letter-spacing: -2px; }
html[lang="zh-CN"] h1 em, html[lang="zh-CN"] h2 em { font-style: normal; }
html[lang="zh-CN"] h2 { line-height: 1.35; letter-spacing: -.8px; }

@media (max-width: 900px) {
  .wrap { width: calc(100% - 48px); }
  .site-header { flex-wrap: wrap; gap: 16px; padding-block: 16px; }
  .language-toggle { margin-left: auto; }
  .page-tabs { order: 3; width: 100%; margin-left: 0; gap: 24px; overflow-x: auto; }
  .page-tabs a { padding: 8px 0 12px; }
  .hero { grid-template-columns: minmax(0, 1fr) minmax(330px, .9fr); gap: 32px; padding-top: 56px; }
  h1 { font-size: clamp(3.1rem, 6vw, 4.2rem); letter-spacing: -2.8px; }
  .overview-grid > div { grid-template-columns: 1fr 1fr; }
  .overview-grid h2 { grid-column: 1 / -1; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid article:first-child { padding-left: 25px; }
  .industry-grid article:nth-child(2) { border-right: 0; }
  .industry-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .industry-grid article:last-child { padding-right: 25px; }
  .pricing-grid { gap: 18px; }
  .contact-card { flex-wrap: wrap; }
  .contact-card .button { margin-left: 0; }
}

@media (max-width: 620px) {
  html { scroll-padding-top: 150px; }
  .wrap { width: calc(100% - 36px); }
  .site-header { gap: 14px; }
  .brand { font-size: 1.15rem; }
  .page-tabs { gap: 20px; }
  .hero { display: grid; grid-template-columns: 1fr; gap: 36px; padding-top: 45px; padding-bottom: 50px; }
  .hero::after { background: #ffffffd9; }
  h1 { font-size: clamp(3.25rem, 15vw, 4.6rem); line-height: 1.02; letter-spacing: -3px; }
  .hero-bottom p { font-size: 1rem; }
  .hero-visual { min-height: 330px; aspect-ratio: auto; margin: 0; padding: 12px; }
  .results-panel { grid-template-columns: 1fr 1fr; gap: 14px; padding: 17px; }
  .results-panel h3 { grid-column: 1 / -1; }
  .result { padding-left: 14px; }
  .result:first-of-type { padding-left: 0; border-left: 0; }
  .result strong { font-size: 1.8rem; }
  #overview { padding-top: 56px; }
  .content-section { padding-top: 58px; }
  .overview-grid > div { grid-template-columns: 1fr; gap: 22px; }
  .overview-grid h2 { grid-column: auto; }
  .retail-content h2, .section-heading h2 { font-size: 2.55rem; letter-spacing: -1.4px; }
  .industries { padding-top: 70px; padding-bottom: 62px; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 20px; margin-bottom: 30px; }
  .section-heading > p { max-width: 100%; }
  .industry-grid article { padding: 24px 17px 28px; }
  .industry-grid article:first-child { padding-left: 17px; }
  .industry-grid article:last-child { padding-right: 17px; }
  .industry-grid h3 { margin-top: 27px; font-size: 1.2rem; }
  .industry-grid p { font-size: .875rem; }
  .demo { margin-bottom: 52px; padding: 18px; }
  .demo-top { flex-direction: column; align-items: flex-start; gap: 9px; padding-bottom: 18px; }
  .demo-top h2 { font-size: 1.25rem; }
  #solutions-panel, #pricing-panel { padding-bottom: 56px; }
  #challenges > h2, #pricing > h2 { font-size: 3rem; }
  .challenge-list { grid-template-columns: 1fr; margin-top: 34px; }
  .challenge-list li, .challenge-list li:nth-child(odd) { min-height: auto; padding: 26px 18px 28px 52px; border-right: 0; }
  .challenge-list li:last-child { grid-column: auto; }
  .challenge-list li::before, .challenge-list li:nth-child(even)::before { top: 29px; left: 14px; }
  .challenge-list h3 { font-size: 1.35rem; }
  #pricing > .eyebrow, #pricing > h2 { justify-content: flex-start; text-align: left; }
  .pricing-grid { grid-template-columns: 1fr; margin-top: 34px; }
  .price-panel, .support-panel { padding: 27px; }
  .price-panel .trial { font-size: 2.75rem; }
  .contact-section { padding-top: 58px; padding-bottom: 56px; }
  .contact-section h2 { font-size: 3.1rem; }
  .contact-card { padding: 25px; }
  .contact-card > div { min-width: 0; }
  .contact-symbol { display: none; }
  .contact-card .button { width: 100%; }
  footer { flex-wrap: wrap; gap: 18px; }
  footer p { order: 3; width: 100%; }
  html[lang="zh-CN"] h1 { font-size: clamp(3rem, 12vw, 4rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .page-panel { animation: none; }
  a, button { transition: none; }
}