:root {
  --paper: #f3efe6;
  --paper-deep: #e8e1d4;
  --paper-light: #faf8f2;
  --ink: #1c1b18;
  --muted: #69655e;
  --line: rgba(28, 27, 24, 0.18);
  --accent: #d7664b;
  --teal: #5a9b98;
  --night: #1d2a3a;
  --serif: "Iowan Old Style", Baskerville, "Times New Roman", serif;
  --sans: 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; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; }
[hidden] { display: none !important; }
html:not(.lang-en) .en, html.lang-en .zh { display: none !important; }

.section-shell { width: min(1240px, calc(100% - 64px)); margin-inline: auto; }
.eyebrow { margin: 0 0 24px; display: flex; align-items: center; gap: 10px; font: 700 11px/1.2 var(--mono); letter-spacing: .15em; text-transform: uppercase; }
.eyebrow > i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(215, 102, 75, .13); }

.site-header { position: relative; z-index: 20; width: min(1360px, calc(100% - 56px)); height: 88px; margin-inline: auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; width: fit-content; font: 700 14px/1 var(--mono); letter-spacing: .08em; }
.brand img, .footer-brand img { border-radius: 9px; box-shadow: 0 4px 12px rgba(29, 42, 58, .16); }
.site-header nav { display: flex; gap: 34px; font-size: 13px; font-weight: 650; }
.site-header nav a { position: relative; padding: 12px 0; }
.site-header nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 6px; height: 1px; background: var(--accent); transition: right 180ms ease; }
.site-header nav a:hover::after { right: 0; }
.language-switch { justify-self: end; display: flex; align-items: center; gap: 7px; font: 700 12px/1 var(--mono); }
.language-switch button { border: 0; background: transparent; padding: 8px 2px; cursor: pointer; opacity: .38; }
.language-switch button.active { opacity: 1; }
.language-switch > span { opacity: .28; }

.hero { min-height: 720px; padding: 80px 0 88px; display: grid; grid-template-columns: minmax(0, .86fr) minmax(500px, 1.14fr); gap: 52px; align-items: center; }
.hero h1, .section-heading h2, .features-lead h2, .privacy-copy h2, .faq-heading h2, .download-heading h2, .modal h2 { font-family: var(--serif); font-weight: 500; letter-spacing: -.045em; }
.hero h1 { margin: 0; max-width: 680px; font-size: clamp(66px, 6.15vw, 96px); line-height: .94; }
.hero h1 span { display: block; }
.hero-body { max-width: 590px; margin: 34px 0 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.connection-modes { max-width: 610px; margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.connection-mode { position: relative; min-height: 74px; padding: 12px 13px; display: grid; grid-template-columns: auto 1fr; gap: 11px; align-items: center; border: 1px solid var(--line); background: rgba(250, 248, 242, .58); }
.connection-mode.hid-mode { border-color: rgba(215, 102, 75, .52); background: rgba(215, 102, 75, .07); }
.mode-icon { width: 43px; height: 43px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font: 700 9px/1 var(--mono); }
.connection-mode > div { min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.connection-mode strong { font: 650 13px/1.15 var(--sans); }
.connection-mode small { color: var(--muted); font: 600 9px/1.25 var(--mono); }
.connection-mode > b { position: absolute; right: 8px; top: -9px; padding: 4px 6px; background: var(--accent); color: white; font: 700 8px/1 var(--mono); letter-spacing: .06em; }
.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 34px; }
.button { min-height: 51px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 16px; border: 1px solid var(--ink); border-radius: 2px; font-size: 14px; font-weight: 700; transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button b { font-size: 17px; }
.button-primary { color: #fff9f2; background: var(--ink); box-shadow: 5px 5px 0 var(--accent); }
.button-primary:hover { box-shadow: 7px 7px 0 var(--accent); }
.button-quiet { border-color: transparent; }
.button-quiet:hover { background: rgba(28, 27, 24, .05); }
.trust-row { margin-top: 29px; display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--muted); font: 600 11px/1.2 var(--mono); }
.trust-row > i { width: 3px; height: 3px; border-radius: 50%; background: var(--accent); }

.hero-visual { position: relative; height: 550px; }
.hero-visual::before { content: ""; position: absolute; inset: 45px 0 10px 44px; border: 1px dashed rgba(28, 27, 24, .17); border-radius: 51% 49% 53% 47%; transform: rotate(-4deg); }
.desktop-window { position: absolute; right: 0; top: 66px; width: 525px; height: 364px; overflow: hidden; border: 1.5px solid var(--ink); border-radius: 7px; background: var(--paper-light); box-shadow: 14px 16px 0 rgba(28, 27, 24, .07); transform: rotate(1.2deg); }
.window-bar { height: 43px; padding: 0 15px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid rgba(28, 27, 24, .25); background: #e7dfd1; }
.window-bar > i { width: 8px; height: 8px; border: 1px solid var(--ink); border-radius: 50%; }
.window-bar > i:first-child { background: var(--accent); }
.window-bar > b { margin-left: 9px; font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.desktop-content { padding: 36px 42px; }
.connection-pill { width: fit-content; padding: 7px 10px; display: flex; align-items: center; gap: 8px; border: 1px solid rgba(50, 113, 91, .25); border-radius: 99px; background: rgba(92, 151, 128, .09); color: #326e5b; font: 700 10px/1 var(--mono); }
.connection-pill > i, .platform-card small.available > i { width: 6px; height: 6px; border-radius: 50%; background: #4e9a75; }
.field-label { margin: 29px 0 9px; color: var(--muted); font: 700 10px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.input-field { height: 55px; padding: 0 17px; display: flex; align-items: center; border: 1.5px solid var(--ink); background: white; font: 600 16px/1 var(--mono); }
.input-field > i, .mini-cursor > i, .type-symbol > i { width: 2px; height: 22px; margin-left: 3px; background: var(--accent); animation: blink 1s steps(2, start) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.recent-card { margin-top: 19px; padding: 14px 15px; display: flex; align-items: center; justify-content: space-between; border-left: 3px solid var(--teal); background: #e9eee8; }
.recent-card > div { display: flex; flex-direction: column; gap: 5px; }
.recent-card small, .recent-card > span { color: var(--muted); font: 650 9px/1.2 var(--mono); }
.recent-card strong { font: 700 13px/1 var(--mono); }

.phone { position: absolute; left: -6px; bottom: 5px; z-index: 4; width: 220px; height: 430px; overflow: hidden; border: 4px solid var(--ink); border-radius: 36px; background: var(--night); box-shadow: 12px 14px 0 rgba(215, 102, 75, .24); transform: rotate(-3.5deg); }
.phone-speaker { position: absolute; z-index: 3; top: 13px; left: calc(50% - 23px); width: 46px; height: 6px; border-radius: 99px; background: var(--paper-light); }
.scanner-view { position: relative; height: 286px; background: linear-gradient(rgba(29, 42, 58, .28), rgba(29, 42, 58, .62)), repeating-linear-gradient(120deg, #6c756b 0 12px, #4d5b56 12px 27px, #8b8070 27px 43px); }
.scan-status { position: absolute; top: 39px; left: 50%; display: flex; align-items: center; gap: 7px; transform: translateX(-50%); color: white; white-space: nowrap; font: 650 9px/1 var(--mono); letter-spacing: .08em; }
.scan-status > i { width: 6px; height: 6px; border-radius: 50%; background: #64d8a3; }
.barcode { position: absolute; left: 50%; top: 118px; height: 78px; display: flex; align-items: stretch; gap: 3px; transform: translateX(-50%); }
.barcode i, .barcode b { display: block; height: 100%; background: #f9f3e8; }
.barcode i:nth-child(1) { width: 3px; }.barcode b:nth-child(2) { width: 8px; }.barcode i:nth-child(3) { width: 4px; }.barcode b:nth-child(4) { width: 11px; }.barcode i:nth-child(5) { width: 5px; }.barcode b:nth-child(6) { width: 3px; }.barcode i:nth-child(7) { width: 9px; }.barcode b:nth-child(8) { width: 4px; }.barcode i:nth-child(9) { width: 7px; }.barcode b:nth-child(10) { width: 3px; }
.scan-line { position: absolute; z-index: 2; left: 24px; right: 24px; top: 156px; height: 2px; background: #ff7056; box-shadow: 0 0 11px #ff7056; }
.corner { position: absolute; width: 21px; height: 21px; border-color: white; border-style: solid; }
.corner.tl { left: 22px; top: 87px; border-width: 2px 0 0 2px; }.corner.tr { right: 22px; top: 87px; border-width: 2px 2px 0 0; }.corner.bl { left: 22px; bottom: 55px; border-width: 0 0 2px 2px; }.corner.br { right: 22px; bottom: 55px; border-width: 0 2px 2px 0; }
.phone-result { padding: 25px 18px; display: flex; flex-direction: column; gap: 10px; color: white; }
.phone-result span { color: #e59a86; font: 700 9px/1 var(--mono); }
.phone-result strong { font: 650 15px/1 var(--mono); }
.home-indicator { position: absolute; left: calc(50% - 43px); bottom: 10px; width: 86px; height: 4px; border-radius: 99px; background: rgba(255, 255, 255, .75); }
.transfer-chip { position: absolute; z-index: 8; left: 177px; top: 246px; padding: 10px 13px 10px 9px; display: flex; align-items: center; gap: 8px; border: 1px solid var(--ink); border-radius: 99px; background: var(--paper-light); box-shadow: 3px 3px 0 var(--ink); white-space: nowrap; font: 700 9px/1 var(--mono); }
.transfer-chip > span { width: 21px; height: 21px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; }
.signal { position: absolute; z-index: 1; border: 1px solid var(--accent); border-radius: 50%; opacity: .35; }
.signal-one { width: 130px; height: 130px; left: 134px; top: 191px; }.signal-two { width: 170px; height: 170px; left: 115px; top: 172px; }

.feature-strip { overflow: hidden; border-block: 1px solid var(--ink); background: var(--accent); color: #fff8ee; }
.feature-strip > div { width: max-content; height: 48px; display: flex; align-items: center; animation: marquee 30s linear infinite; }
.feature-strip span { margin-right: 35px; display: inline-flex; align-items: center; gap: 35px; font: 700 10px/1 var(--mono); letter-spacing: .14em; }
@keyframes marquee { to { transform: translateX(-50%); } }

.how { padding: 130px 0 145px; }
.section-heading { max-width: 940px; margin-bottom: 68px; }
.section-heading h2, .features-lead h2, .download-heading h2 { margin: 0; font-size: clamp(48px, 5vw, 73px); line-height: 1.02; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--ink); }
.step-card { min-height: 430px; padding: 26px 30px 34px; border-right: 1px solid var(--line); }
.step-card:last-child { border-right: 0; }
.step-number { color: var(--accent); font: 700 11px/1 var(--mono); }
.step-illustration { position: relative; height: 205px; margin: 24px -5px 20px; display: grid; place-items: center; }
.step-card h3 { margin: 0 0 12px; font: 600 24px/1.25 var(--serif); letter-spacing: -.02em; }
.step-card > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.step-mode-copy { display: grid; gap: 8px; }
.step-mode-copy > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.step-mode-copy b { color: var(--ink); font-weight: 750; }
.mini-screen { position: relative; width: 230px; height: 148px; border: 1.5px solid var(--ink); background: var(--paper-light); box-shadow: 7px 7px 0 var(--paper-deep); }
.mini-screen::before { content: ""; display: block; height: 22px; border-bottom: 1px solid var(--ink); background: var(--paper-deep); }
.mini-screen > i { position: absolute; left: calc(50% - 41px); top: 42px; width: 82px; height: 82px; border: 7px solid var(--ink); background: repeating-conic-gradient(var(--ink) 0 25%, transparent 0 50%) 50% / 18px 18px; }
.mini-screen > b { position: absolute; right: 25px; bottom: 17px; width: 18px; height: 18px; border: 4px solid var(--paper-light); background: var(--ink); }
.step-illustration.first > span { position: absolute; right: 42px; bottom: 17px; width: 58px; height: 26px; border: 1px solid var(--ink); border-radius: 99px; background: var(--accent); }
.step-illustration.first > span::after { content: ""; position: absolute; right: 4px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: white; }
.mini-phone { width: 104px; height: 184px; display: grid; place-items: center; border: 3px solid var(--ink); border-radius: 20px; background: var(--night); transform: rotate(-5deg); }
.mini-phone > i { width: 63px; height: 63px; border: 2px solid white; box-shadow: inset 0 0 0 19px var(--night); background: var(--accent); }
.step-illustration.second > b { position: absolute; right: 62px; top: 73px; color: var(--accent); font: 800 20px/1 var(--mono); letter-spacing: 3px; transform: rotate(-5deg); }
.mini-cursor { width: 260px; height: 72px; padding: 0 18px; display: flex; align-items: center; border: 1.5px solid var(--ink); background: white; box-shadow: 7px 7px 0 var(--paper-deep); font: 650 15px/1 var(--mono); }
.step-illustration.third > b { position: absolute; right: 32px; bottom: 28px; width: 43px; height: 43px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; font: 500 20px/1 var(--mono); }

.features { padding: 130px 0 145px; background: var(--ink); color: var(--paper-light); }
.features-shell { display: grid; grid-template-columns: .72fr 1.28fr; gap: 82px; align-items: start; }
.features-lead { position: sticky; top: 48px; }
.features-lead > p:last-child { max-width: 380px; margin: 26px 0 0; color: #aaa49a; line-height: 1.7; }
.bento-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.feature-card { min-height: 350px; padding: 27px 28px 30px; display: flex; flex-direction: column; border: 1px solid rgba(250, 248, 242, .2); background: #292724; }
.feature-card:nth-child(1), .feature-card:nth-child(4) { background: #2e2b27; }
.feature-card.offset { transform: translateY(48px); }
.feature-tag { color: #aaa49a; font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.feature-symbol { position: relative; height: 132px; margin: 18px 0 22px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.feature-card h3 { margin: auto 0 11px; font: 500 25px/1.2 var(--serif); }
.feature-card > p { margin: 0; color: #aaa49a; font-size: 13px; line-height: 1.7; }
.scan-symbol { gap: 7px; }.scan-symbol > i, .scan-symbol > b { width: 8px; height: 75px; background: var(--paper-light); }.scan-symbol > b { width: 16px; height: 91px; }.scan-symbol > span { position: absolute; left: 14%; right: 14%; top: 64px; height: 2px; background: var(--accent); box-shadow: 0 0 9px var(--accent); }
.connect-symbol { gap: 17px; }.connect-symbol > i { width: 58px; height: 78px; border: 1px solid var(--paper-light); border-radius: 10px; }.connect-symbol > i:last-child { width: 96px; height: 64px; border-radius: 3px; }.connect-symbol > b { color: var(--accent); font: 500 31px/1 var(--serif); }
.connection-proof { margin: -12px 0 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.connection-proof > span { padding: 8px 9px; display: flex; flex-direction: column; gap: 4px; border: 1px solid rgba(250, 248, 242, .2); }
.connection-proof > span:first-child { border-color: rgba(215, 102, 75, .62); background: rgba(215, 102, 75, .08); }
.connection-proof b { color: var(--paper-light); font: 700 9px/1 var(--mono); }
.connection-proof small { color: #aaa49a; font: 650 8px/1.2 var(--mono); }
.type-symbol { width: 90%; height: 57px; margin: 56px auto 59px; padding: 0 14px; justify-content: flex-start; border: 1px solid var(--paper-light); background: var(--ink); font: 600 13px/1 var(--mono); }
.history-symbol { padding: 18px 20px; flex-direction: column; align-items: stretch; gap: 9px; }.history-symbol > i { height: 19px; border: 1px solid rgba(250, 248, 242, .5); }.history-symbol > i:nth-child(2) { width: 82%; }.history-symbol > i:nth-child(3) { width: 67%; }.history-symbol > b { position: absolute; right: 25px; bottom: 14px; width: 39px; height: 39px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); }

.privacy { padding: 145px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.privacy-copy h2 { margin: 0; max-width: 650px; font-size: clamp(48px, 4.6vw, 71px); line-height: 1; }
.privacy-copy > p:not(.eyebrow) { max-width: 590px; margin: 30px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.privacy-copy ul { margin: 29px 0 0; padding: 0; display: grid; gap: 13px; list-style: none; }
.privacy-copy li { display: flex; align-items: center; gap: 11px; font-size: 13px; font-weight: 650; }
.privacy-copy li > i { width: 23px; height: 23px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; color: var(--accent); font-style: normal; font-size: 11px; }
.privacy-visual { position: relative; min-height: 440px; display: flex; align-items: center; justify-content: center; }
.orbit { position: absolute; border: 1px dashed rgba(28, 27, 24, .22); border-radius: 50%; }.orbit.one { width: 400px; height: 280px; transform: rotate(10deg); }.orbit.two { width: 460px; height: 340px; transform: rotate(-15deg); }
.device { position: absolute; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 15px; border: 1.5px solid var(--ink); background: var(--paper-light); box-shadow: 7px 7px 0 var(--paper-deep); font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.device > i { display: block; border: 2px solid var(--ink); }.phone-node { left: 28px; width: 130px; height: 190px; border-radius: 22px; }.phone-node > i { width: 48px; height: 76px; border-radius: 8px; }.desktop-node { right: 10px; width: 230px; height: 154px; border-radius: 4px; }.desktop-node > i { width: 105px; height: 62px; }
.private-path { z-index: 4; width: 158px; display: flex; align-items: center; justify-content: space-between; border-top: 1.5px solid var(--accent); }.private-path > i { width: 8px; height: 8px; margin-top: -5px; border-radius: 50%; background: var(--accent); }.private-path > i:nth-child(2) { width: 14px; height: 14px; }
.no-cloud { position: absolute; left: calc(50% - 35px); top: 34px; display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--muted); font: 700 8px/1 var(--mono); letter-spacing: .12em; }.no-cloud > b { width: 70px; height: 38px; display: grid; place-items: center; border: 1px dashed var(--muted); border-radius: 50%; color: var(--accent); font-size: 24px; }

.faq { padding: 130px 0 140px; border-top: 1px solid var(--ink); background: var(--paper-light); }
.faq-shell { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: start; }
.faq-heading { position: sticky; top: 48px; }
.faq-heading h2 { margin: 0; max-width: 500px; font-size: clamp(48px, 4.6vw, 70px); line-height: 1; }
.faq-heading > p:last-child { max-width: 480px; margin: 27px 0 0; color: var(--muted); font-size: 15px; line-height: 1.75; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 88px; padding: 24px 3px; display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; cursor: pointer; list-style: none; font: 600 23px/1.3 var(--serif); letter-spacing: -.015em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary > i { position: relative; width: 28px; height: 28px; border: 1px solid var(--ink); border-radius: 50%; }
.faq-list summary > i::before, .faq-list summary > i::after { content: ""; position: absolute; left: 7px; right: 7px; top: 13px; height: 1px; background: var(--ink); transition: transform 180ms ease; }
.faq-list summary > i::after { transform: rotate(90deg); }
.faq-list details[open] summary > i::after { transform: rotate(0); }
.faq-answer { max-width: 710px; padding: 0 58px 27px 3px; }
.faq-answer p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

.downloads { padding: 130px 0 115px; border-top: 1px solid var(--ink); background: var(--paper-deep); }
.download-heading { max-width: 860px; }.download-heading > p:last-child { max-width: 610px; margin: 24px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.platform-grid { margin-top: 67px; display: grid; grid-template-columns: repeat(5, 1fr); border-block: 1px solid var(--ink); }
.platform-card { position: relative; min-width: 0; min-height: 300px; padding: 28px 23px 25px; display: flex; flex-direction: column; align-items: flex-start; border: 0; border-right: 1px solid rgba(28, 27, 24, .2); background: transparent; text-align: left; cursor: pointer; transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease; }
.platform-card:last-child { border-right: 0; }.platform-card:hover { z-index: 2; background: var(--paper-light); transform: translateY(-5px); box-shadow: 0 5px 0 var(--accent); }
.platform-mark { width: 52px; height: 52px; display: grid; place-items: center; border: 1.5px solid var(--ink); border-radius: 50%; font: 700 13px/1 var(--mono); }
.platform-card > div { margin-top: 31px; }.platform-card h3 { margin: 0 0 7px; font: 500 27px/1 var(--serif); }.platform-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.platform-card > small { margin-top: 19px; display: flex; align-items: center; gap: 6px; color: var(--muted); font: 700 9px/1 var(--mono); text-transform: uppercase; }.platform-card > small > i { width: 6px; height: 6px; border-radius: 50%; background: #a29c91; }.platform-card > small.available { color: #39755d; }
.platform-card > b { width: 100%; margin-top: auto; display: flex; align-items: center; justify-content: space-between; font-size: 12px; }.platform-card > b > i { font-style: normal; font-size: 17px; }
.checksum { margin: 22px 0 0; display: flex; gap: 12px; align-items: baseline; color: var(--muted); font: 600 9px/1.5 var(--mono); }.checksum code { overflow-wrap: anywhere; }

.site-footer { min-height: 230px; padding-block: 48px 42px; display: flex; flex-direction: column; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 18px; }.footer-brand strong { font: 500 25px/1.2 var(--serif); }.footer-meta { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font: 650 10px/1 var(--mono); }.footer-meta a { color: var(--ink); }

.modal-backdrop { position: fixed; z-index: 100; inset: 0; padding: 24px; display: grid; place-items: center; background: rgba(19, 18, 16, .63); backdrop-filter: blur(6px); }
.modal { position: relative; width: min(660px, 100%); max-height: calc(100vh - 48px); overflow-y: auto; padding: 46px 48px 40px; border: 1px solid var(--ink); background: var(--paper-light); box-shadow: 10px 10px 0 var(--accent); }
.modal-close { position: absolute; top: 18px; right: 18px; width: 36px; height: 36px; border: 1px solid var(--ink); border-radius: 50%; background: transparent; cursor: pointer; font-size: 22px; }
.modal h2 { margin: 0; max-width: 530px; font-size: 50px; line-height: 1; }.modal-intro { margin: 18px 0 28px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.chip-options { display: grid; gap: 11px; }.chip-option { width: 100%; min-height: 86px; padding: 14px 16px; display: grid; grid-template-columns: auto 1fr auto auto; gap: 14px; align-items: center; border: 1px solid var(--ink); background: transparent; text-align: left; cursor: pointer; transition: background 160ms ease, transform 160ms ease; }.chip-option:hover { background: var(--paper-deep); transform: translateX(3px); }
.chip-mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 8px; background: var(--ink); color: white; font: 700 18px/1 var(--mono); }.chip-option > span:nth-child(2) { display: flex; flex-direction: column; gap: 6px; }.chip-option strong { font-size: 14px; }.chip-option small { color: var(--muted); font-size: 11px; }.chip-option em { color: #39755d; font: normal 700 9px/1 var(--mono); text-transform: uppercase; }.chip-option:last-child em { color: var(--muted); }.chip-option > b { font-size: 18px; }.modal-checksum { display: block; margin-top: 20px; }.modal-checksum span { display: block; margin-bottom: 4px; }

.toast { position: fixed; z-index: 120; right: 25px; bottom: 25px; width: min(390px, calc(100% - 50px)); min-height: 90px; padding: 17px 18px; display: grid; grid-template-columns: auto 1fr auto; gap: 13px; align-items: center; border: 1px solid var(--ink); background: var(--paper-light); box-shadow: 6px 6px 0 var(--accent); animation: toast-in 220ms ease both; }.toast-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; font-size: 22px; }.toast strong { font-size: 13px; }.toast p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }.toast > button { border: 0; background: transparent; cursor: pointer; font-size: 20px; }
@keyframes toast-in { from { opacity: 0; transform: translateY(15px); } }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; } }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; padding-top: 72px; }.hero-copy { max-width: 760px; }.hero-visual { width: min(720px, 100%); margin: 10px auto 0; }
  .features-shell { grid-template-columns: 1fr; }.features-lead { position: static; }
  .faq-shell { grid-template-columns: 1fr; gap: 58px; }.faq-heading { position: static; }
  .platform-grid { grid-template-columns: repeat(3, 1fr); border-bottom: 0; }.platform-card { border-bottom: 1px solid var(--ink); }.platform-card:nth-child(3) { border-right: 0; }
}

@media (max-width: 780px) {
  .section-shell { width: min(calc(100% - 36px), 620px); }.site-header { width: calc(100% - 36px); height: 72px; grid-template-columns: 1fr auto; }.site-header nav { display: none; }
  .hero { min-height: 0; padding: 60px 0 75px; gap: 50px; }.hero h1 { font-size: clamp(54px, 15vw, 78px); }.hero-body { font-size: 16px; }.hero-actions { flex-direction: column; align-items: stretch; }.button { width: 100%; }
  .connection-modes { grid-template-columns: 1fr; }
  .hero-visual { height: 480px; }.desktop-window { top: 20px; width: 91%; height: 310px; }.desktop-content { padding: 25px; }.phone { width: 170px; height: 342px; }.scanner-view { height: 225px; }.barcode { top: 96px; height: 60px; transform: translateX(-50%) scaleX(.75); }.scan-line { top: 127px; }.corner.tl, .corner.tr { top: 75px; }.corner.bl, .corner.br { bottom: 39px; }.phone-result { padding: 20px 13px; }.phone-result strong { font-size: 11px; }.transfer-chip { left: 130px; top: 214px; }.recent-card { display: none; }
  .how, .features, .privacy, .faq, .downloads { padding-block: 92px 95px; }.steps-grid { grid-template-columns: 1fr; }.step-card { min-height: 390px; border-right: 0; border-bottom: 1px solid var(--line); }.step-card:last-child { border-bottom: 0; }
  .bento-grid { grid-template-columns: 1fr; }.feature-card.offset { transform: none; }
  .privacy { grid-template-columns: 1fr; gap: 60px; }.privacy-visual { min-height: 390px; margin: -35px -40px; transform: scale(.86); }
  .platform-grid { grid-template-columns: 1fr 1fr; }.platform-card:nth-child(3) { border-right: 1px solid var(--ink); }.platform-card:nth-child(even) { border-right: 0; }.platform-card { min-height: 260px; }
  .checksum { flex-direction: column; gap: 5px; }.modal { padding: 44px 24px 30px; }.modal h2 { font-size: 39px; }.chip-option { grid-template-columns: auto 1fr auto; }.chip-option em { display: none; }
}

@media (max-width: 480px) {
  .brand img { width: 32px; height: 32px; }.brand > span { font-size: 12px; }.hero h1 { font-size: 51px; }.hero-visual { height: 425px; }
  .desktop-window { right: -6px; width: 96%; }.desktop-content { padding: 22px 17px; }.phone { left: -7px; width: 150px; height: 320px; }.scanner-view { height: 208px; }.scan-status { top: 35px; }.barcode { top: 87px; }.scan-line { left: 18px; right: 18px; top: 119px; }.corner.tl { left: 17px; top: 66px; }.corner.tr { right: 17px; top: 66px; }.corner.bl { left: 17px; bottom: 36px; }.corner.br { right: 17px; bottom: 36px; }.transfer-chip { left: 113px; top: 201px; }
  .section-heading h2, .features-lead h2, .faq-heading h2, .download-heading h2, .privacy-copy h2 { font-size: 43px; }
  .faq-list summary { min-height: 78px; font-size: 20px; }.faq-answer { padding-right: 3px; }
  .platform-grid { grid-template-columns: 1fr; }.platform-card, .platform-card:nth-child(3) { min-height: 225px; border-right: 0; }.platform-card > div { margin-top: 22px; }
  .site-footer { min-height: 250px; }.footer-brand { align-items: flex-start; flex-direction: column; }.footer-meta { align-items: flex-end; gap: 25px; }.toast { right: 14px; bottom: 14px; width: calc(100% - 28px); }
}