:root {
  --ink: #111713;
  --ink-2: #1a221c;
  --paper: #f2f0e7;
  --paper-2: #deddd3;
  --acid: #e6ff4b;
  --orange: #ff6b35;
  --muted: #8b938c;
  --line: rgba(17, 23, 19, .18);
  --max: 1240px;
  --display: "Arial Narrow", "Roboto Condensed", "DIN Condensed", Impact, sans-serif;
  --body: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--body); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.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; }
.noise { position: fixed; z-index: 99; inset: 0; opacity: .035; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E"); }
.site-header { position: fixed; z-index: 50; top: 0; left: 0; right: 0; height: 76px; padding: 0 max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; justify-content: space-between; color: #fff; border-bottom: 1px solid rgba(255,255,255,.13); transition: background .25s, backdrop-filter .25s; }
.site-header.scrolled { background: rgba(17,23,19,.92); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 15px; letter-spacing: .05em; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: var(--ink); background: var(--acid); font-family: var(--display); font-size: 19px; font-weight: 900; transform: skew(-6deg); }
.brand-name b { color: var(--acid); }
.site-nav { display: flex; align-items: center; gap: 26px; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.site-nav a:not(.nav-cta) { color: rgba(255,255,255,.74); transition: color .2s; }
.site-nav a:hover { color: var(--acid); }
.nav-cta { padding: 12px 18px; color: var(--ink); background: var(--acid); font-weight: 800; }
.language-switch { padding: 3px; display: flex; align-items: center; gap: 2px; border: 1px solid rgba(255,255,255,.2); }
.language-switch button { min-width: 38px; height: 27px; padding: 0 7px; border: 0; color: rgba(255,255,255,.48); background: transparent; cursor: pointer; font: 700 9px var(--mono); letter-spacing: .04em; transition: color .2s, background .2s; }
.language-switch button[aria-pressed="true"] { color: var(--ink); background: var(--acid); }
.menu-toggle { display: none; }

.hero { position: relative; min-height: 820px; height: 100svh; max-height: 980px; padding: 150px max(28px, calc((100vw - var(--max)) / 2)) 90px; overflow: hidden; color: #fff; background: var(--ink); display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 70px; }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 82% 38%, rgba(230,255,75,.09), transparent 29%), linear-gradient(115deg, transparent 56%, rgba(255,255,255,.025) 56%); }
.hero-grid { position: absolute; inset: 0 0 0 55%; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px); background-size: 48px 48px; transform: perspective(600px) rotateY(-12deg) scale(1.15); mask-image: linear-gradient(90deg, transparent, #000); }
.hero-copy, .hero-visual { position: relative; z-index: 2; }
.eyebrow, .kicker { margin: 0 0 27px; font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.status-dot { width: 7px; height: 7px; display: inline-block; margin-right: 9px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 5px rgba(230,255,75,.1); }
.hero h1 { margin: 0; max-width: 760px; font-family: var(--display); font-size: clamp(68px, 7.2vw, 118px); font-stretch: condensed; font-weight: 900; line-height: .82; letter-spacing: -.045em; text-transform: uppercase; }
.hero h1 span, .cta-copy h2 span { color: var(--acid); }
.hero-lead { max-width: 670px; margin: 36px 0 0; color: rgba(255,255,255,.78); font-size: 18px; line-height: 1.65; }
.hero-cn { margin: 12px 0 0; color: rgba(255,255,255,.42); font-size: 13px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { min-height: 52px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; border: 1px solid rgba(255,255,255,.25); font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--ink); border-color: var(--acid); background: var(--acid); }
.button-primary span { font-size: 16px; }
.button-ghost:hover { background: rgba(255,255,255,.08); }
.hero-facts { margin: 40px 0 0; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.14); display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.hero-facts div { min-width: 0; }
.hero-facts dt { margin-bottom: 7px; color: rgba(255,255,255,.38); font-family: var(--mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.hero-facts dd { margin: 0; font-size: 12px; font-weight: 700; }
.hero-visual { width: min(100%, 500px); justify-self: end; transform: rotate(1.6deg); }
.map-card { position: relative; padding: 13px; background: #222b24; box-shadow: 0 45px 80px rgba(0,0,0,.34); }
.map-card::before { content: ""; position: absolute; z-index: -1; inset: 20px -20px -20px 20px; border: 1px solid rgba(230,255,75,.45); }
.map-card-head { min-height: 34px; padding: 0 4px; display: flex; align-items: center; justify-content: space-between; color: rgba(255,255,255,.65); font-family: var(--mono); font-size: 8px; letter-spacing: .08em; }
.map-coord { color: var(--acid); }
.map-card img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: saturate(.85); }
.scan-line { position: absolute; left: 13px; right: 13px; top: 30%; height: 1px; background: var(--acid); box-shadow: 0 0 12px var(--acid); opacity: .7; animation: scan 6s ease-in-out infinite; }
@keyframes scan { 0%, 100% { top: 22%; opacity: .2; } 50% { top: 78%; opacity: .9; } }
.map-label { position: absolute; padding: 7px 9px; color: #fff; background: rgba(17,23,19,.88); border: 1px solid rgba(230,255,75,.38); font-family: var(--mono); font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }
.map-label i { width: 5px; height: 5px; margin-right: 5px; display: inline-block; background: var(--acid); border-radius: 50%; }
.label-a { left: -34px; top: 28%; }.label-b { right: -29px; bottom: 25%; }
.asset-note { margin: 12px 2px 0; color: rgba(255,255,255,.4); font-family: var(--mono); font-size: 8px; letter-spacing: .08em; }
.scroll-hint { position: absolute; z-index: 2; bottom: 28px; left: max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; gap: 13px; color: rgba(255,255,255,.38); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: .1em; }
.scroll-hint span { width: 34px; height: 1px; background: var(--acid); }

.section { position: relative; padding: 110px max(28px, calc((100vw - var(--max)) / 2)); }
.section-tag { position: absolute; top: 34px; left: max(28px, calc((100vw - var(--max)) / 2)); font-family: var(--mono); color: rgba(17,23,19,.45); font-size: 9px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.section-tag.light { color: rgba(255,255,255,.43); }
.section h2 { margin: 0; font-family: var(--display); font-size: clamp(54px, 5vw, 82px); font-weight: 900; line-height: .92; letter-spacing: -.035em; text-transform: uppercase; }
.kicker { margin-bottom: 18px; color: #657066; }
.intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: start; }
.intro-copy { padding-top: 20px; }
.intro-copy p { color: #4d574f; font-size: 15px; line-height: 1.8; }
.intro-copy .large-copy { margin-top: 0; color: var(--ink); font-size: 21px; font-weight: 650; line-height: 1.55; }
.principle { margin-top: 36px; padding: 19px 0 19px 19px; border-left: 4px solid var(--orange); display: flex; flex-direction: column; gap: 7px; }
.principle span { font: 9px var(--mono); letter-spacing: .12em; }.principle strong { font-size: 13px; }

.features-section { color: #fff; background: #202820; }
.feature-head { max-width: 800px; margin-bottom: 56px; }
.features-section .kicker, .api-section .kicker { color: var(--acid); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.feature-card { position: relative; min-height: 330px; padding: 26px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); display: flex; flex-direction: column; }
.feature-no { font: 9px var(--mono); color: rgba(255,255,255,.35); }
.feature-icon { width: 50px; height: 50px; margin: 43px 0 28px; border: 1px solid rgba(255,255,255,.25); display: grid; place-items: center; color: var(--acid); font-size: 22px; }
.feature-card h3 { margin: 0 0 14px; font-family: var(--display); font-size: 28px; text-transform: uppercase; letter-spacing: -.01em; }
.feature-card p { margin: 0; color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.7; }
.feature-cn { margin-top: auto; padding-top: 22px; color: rgba(255,255,255,.3); font-size: 11px; }
.feature-card-accent { color: var(--ink); background: var(--acid); transform: translateY(-14px); }
.feature-card-accent .feature-no, .feature-card-accent p, .feature-card-accent .feature-cn { color: rgba(17,23,19,.6); }
.feature-card-accent .feature-icon { color: var(--ink); border-color: rgba(17,23,19,.35); }

.walkthrough-section { padding-bottom: 130px; }
.walkthrough-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 120px; align-items: center; }
.phone-stage { position: relative; min-height: 640px; display: grid; place-items: center; background-color: #d9d9cf; background-image: linear-gradient(rgba(17,23,19,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(17,23,19,.055) 1px, transparent 1px); background-size: 34px 34px; }
.phone-stage::after { content: "MATCH / 24-06"; position: absolute; top: 28px; left: 28px; font: 9px var(--mono); letter-spacing: .1em; }
.phone-stage > p { position: absolute; left: 28px; bottom: 24px; margin: 0; font: 8px var(--mono); letter-spacing: .08em; color: #6d756e; }
.phone-frame { position: relative; width: 270px; padding: 13px; border: 3px solid var(--ink); border-radius: 38px; background: #080b09; box-shadow: 22px 28px 0 rgba(17,23,19,.1); transform: rotate(-2deg); }
.phone-frame img { width: 100%; border-radius: 26px; }
.phone-speaker { position: absolute; z-index: 2; top: 21px; left: 50%; width: 76px; height: 20px; transform: translateX(-50%); border-radius: 12px; background: #080b09; }
.journey-copy h2 { margin-bottom: 50px; }
.journey-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.journey-list li { padding: 22px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 55px 1fr; gap: 10px; }
.journey-list > li > span { font: 11px var(--mono); color: var(--orange); }
.journey-list h3 { margin: 0 0 7px; font-size: 15px; }.journey-list p { margin: 0; color: #677068; font-size: 13px; }

.api-section { color: #fff; background: var(--ink); }
.api-heading { margin-bottom: 60px; display: grid; grid-template-columns: 1fr .65fr; gap: 100px; align-items: end; }
.api-heading > p { margin: 0; color: rgba(255,255,255,.55); font-size: 15px; line-height: 1.75; }
.api-table { border-top: 1px solid rgba(255,255,255,.2); }
.api-row { min-height: 84px; padding: 20px 12px; border-bottom: 1px solid rgba(255,255,255,.15); display: grid; grid-template-columns: .75fr 1.5fr .75fr; gap: 26px; align-items: center; }
.api-row strong { font-family: var(--display); font-size: 19px; text-transform: uppercase; }.api-row span { color: rgba(255,255,255,.6); font-size: 13px; line-height: 1.6; }.api-row em { color: var(--acid); font: normal 10px var(--mono); text-transform: uppercase; }
.api-row-head { min-height: 44px; padding-block: 12px; }.api-row-head span { color: rgba(255,255,255,.3); font: 8px var(--mono); letter-spacing: .1em; }
.api-notes { margin-top: 58px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 50px; }
.api-notes article > span { color: var(--acid); font: 8px var(--mono); letter-spacing: .12em; }.api-notes h3 { margin: 15px 0 10px; font-size: 15px; }.api-notes p { margin: 0; color: rgba(255,255,255,.48); font-size: 12px; line-height: 1.7; }

.trust-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.trust-list { border-top: 1px solid var(--line); }
.trust-item { padding: 28px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 65px 1fr; gap: 15px; }
.trust-item > span { color: var(--orange); font: 10px var(--mono); }.trust-item h3 { margin: 0 0 8px; font-size: 16px; }.trust-item p { max-width: 600px; margin: 0; color: #667068; font-size: 13px; line-height: 1.7; }

.cta-section { padding-top: 40px; }
.cta-panel { position: relative; padding: 68px 75px; overflow: hidden; color: #fff; background: var(--orange); display: flex; justify-content: space-between; align-items: center; gap: 80px; }
.cta-panel::before { content: ""; position: absolute; right: 30%; top: -70%; width: 440px; height: 440px; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; box-shadow: 0 0 0 50px rgba(255,255,255,.04), 0 0 0 100px rgba(255,255,255,.04); }
.cta-copy { position: relative; z-index: 1; }.cta-copy h2 { font-size: clamp(62px, 6vw, 92px); }.cta-copy h2 span { color: var(--ink); }.cta-copy > p:not(.eyebrow) { max-width: 510px; color: rgba(255,255,255,.78); line-height: 1.65; }
.cta-copy .status-dot { background: #fff; box-shadow: 0 0 0 5px rgba(255,255,255,.13); }
.contact-line { margin-top: 34px; display: flex; flex-direction: column; gap: 7px; }.contact-line span { font: 8px var(--mono); letter-spacing: .1em; opacity: .6; }.contact-line a { font-weight: 800; text-decoration: underline; text-underline-offset: 4px; }
.qr-card { position: relative; z-index: 1; flex: 0 0 245px; padding: 16px 16px 18px; color: var(--ink); background: #fff; box-shadow: 18px 18px 0 rgba(17,23,19,.14); transform: rotate(2deg); }
.qr-card img { width: 100%; }.qr-card strong, .qr-card > span { display: block; text-align: center; }.qr-card strong { margin-top: 12px; font: 11px var(--mono); letter-spacing: .05em; }.qr-card > span { margin-top: 5px; color: #788079; font-size: 9px; }
.site-footer { max-width: var(--max); margin: 0 auto; padding: 35px 0 50px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 2fr auto; gap: 40px; align-items: center; }
.site-footer p { margin: 0; color: #6d756e; font-size: 10px; line-height: 1.6; }.site-footer > a { font: 9px var(--mono); text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; transition-delay: calc(var(--delay, 0) * 90ms); }
.reveal[data-delay="1"] { --delay: 1; }.reveal[data-delay="2"] { --delay: 2; }.reveal[data-delay="3"] { --delay: 3; }
.reveal.visible { opacity: 1; transform: translateY(0); }
:focus-visible { outline: 3px solid var(--acid); outline-offset: 4px; }
html[lang="zh-CN"] .section h2, html[lang="zh-CN"] .hero h1, html[lang="zh-CN"] .cta-copy h2 { letter-spacing: -.055em; }

@media (max-width: 980px) {
  .hero { height: auto; max-height: none; min-height: 100svh; grid-template-columns: 1fr; padding-top: 130px; }
  .hero-visual { width: min(80%, 500px); justify-self: center; margin-bottom: 30px; }
  .hero-grid { inset-left: 20%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }.feature-card-accent { transform: none; }
  .walkthrough-grid, .trust-layout { gap: 55px; }.api-heading { gap: 55px; }
  .site-footer { margin-inline: 28px; }
}
@media (max-width: 760px) {
  .site-header { height: 66px; padding-inline: 20px; }
  .brand-mark { width: 34px; height: 34px; }.brand-name { font-size: 13px; }
  .menu-toggle { width: 42px; height: 42px; border: 0; display: grid; place-content: center; gap: 7px; color: #fff; background: transparent; }
  .menu-toggle span:not(.sr-only) { width: 24px; height: 2px; display: block; background: currentColor; transition: transform .2s; }
  .menu-open .menu-toggle span:first-child { transform: translateY(4.5px) rotate(45deg); }.menu-open .menu-toggle span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 66px 0 0; padding: 50px 28px; display: none; flex-direction: column; align-items: stretch; gap: 0; color: #fff; background: var(--ink); }
  .menu-open .site-nav { display: flex; }.site-nav a { padding: 19px 0; border-bottom: 1px solid rgba(255,255,255,.15); font-size: 13px; }.site-nav .nav-cta { margin-top: 25px; padding: 17px 19px; border: 0; }
  .site-nav .language-switch { width: max-content; margin: 24px 0 0; }.site-nav .language-switch button { height: 34px; min-width: 47px; }
  .hero { padding: 112px 20px 80px; gap: 55px; }.hero h1 { font-size: clamp(58px, 18vw, 88px); }.hero-lead { font-size: 16px; }.hero-facts { grid-template-columns: 1fr 1fr; }.hero-facts div:last-child { display: none; }
  .hero-visual { width: calc(100% - 20px); }.label-a { left: -10px; }.label-b { right: -10px; }.scroll-hint { display: none; }
  .section { padding: 90px 20px; }.section-tag { top: 25px; left: 20px; }.section h2 { font-size: clamp(48px, 14vw, 70px); }
  .intro-layout, .walkthrough-grid, .api-heading, .trust-layout { grid-template-columns: 1fr; gap: 45px; }
  .intro-copy .large-copy { font-size: 18px; }.feature-grid { grid-template-columns: 1fr; }.feature-card { min-height: 280px; }.feature-icon { margin-top: 30px; }
  .walkthrough-grid { display: flex; flex-direction: column-reverse; }.phone-stage { width: 100%; min-height: 600px; }.phone-frame { width: 245px; }
  .api-row { grid-template-columns: 1fr; gap: 8px; padding-block: 20px; }.api-row-head { display: none; }.api-notes { grid-template-columns: 1fr; gap: 30px; }
  .cta-section { padding: 20px; }.cta-panel { padding: 48px 25px; flex-direction: column; align-items: flex-start; gap: 50px; }.qr-card { width: 230px; flex-basis: auto; align-self: center; }
  .site-footer { margin: 0 20px; padding-block: 30px; grid-template-columns: 1fr auto; }.site-footer p { grid-column: 1 / -1; grid-row: 2; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}