:root {
  color-scheme: dark;
  --background: #09122d;
  --surface: #101d3d;
  --surface-light: #17264a;
  --text: #f3f7ff;
  --muted: #aab9d5;
  --line: rgba(177, 202, 247, 0.16);
  --mint: #78f5d0;
  --blue: #66bbff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }
.container { width: min(1180px, calc(100% - 72px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -70px; z-index: 50; padding: 12px 16px; background: #fff; color: #09122d; }
.skip-link:focus { top: 12px; }

.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid rgba(196, 218, 255, 0.09);
  background: rgba(9, 18, 45, 0.88);
  backdrop-filter: blur(20px);
}
.header-inner, .brand, .site-header nav, .hero-actions, .footer-inner { display: flex; align-items: center; }
.header-inner { justify-content: space-between; height: 84px; }
.brand { gap: 11px; font: 800 27px/1 -apple-system, BlinkMacSystemFont, sans-serif; letter-spacing: -0.055em; }
.brand img { border-radius: 10px; box-shadow: 0 5px 18px rgba(3, 9, 29, .28); }
.site-header nav { gap: 36px; font-size: 14px; color: #c1cde1; }
.site-header nav a:hover { color: #fff; }
.site-header .nav-cta { border: 1px solid rgba(120, 245, 208, .46); border-radius: 999px; padding: 11px 17px; color: var(--mint); }
.nav-cta span { margin-left: 12px; }

.hero { display: grid; grid-template-columns: 43% 57%; min-height: 670px; align-items: center; padding-top: 82px; padding-bottom: 95px; }
.hero-copy { position: relative; z-index: 2; padding-right: 20px; }
.eyebrow, .section-kicker { color: var(--mint); font-size: 12px; font-weight: 700; letter-spacing: .15em; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; border: 1px solid rgba(120, 245, 208, .2); background: rgba(120, 245, 208, .06); padding: 10px 14px; border-radius: 999px; }
.status-light, .live-chip i { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 12px rgba(120, 245, 208, .7); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; }
h1 { margin: 31px 0 24px; font-size: clamp(54px, 5.2vw, 75px); font-weight: 800; line-height: 1.17; letter-spacing: -.065em; }
h1 em { font-style: normal; background: linear-gradient(100deg, #8bf7d7 10%, #66bdff 98%); color: transparent; background-clip: text; }
.hero-description { max-width: 468px; color: #b8c7df; font-size: 17px; line-height: 1.9; }
.hero-actions { flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; border-radius: 13px; padding: 0 19px; font-size: 14px; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button span { margin-left: 16px; }
.button-primary { color: #0b2736; background: linear-gradient(120deg, var(--mint), #a1dffc); box-shadow: 0 12px 30px rgba(40, 206, 174, .13); }
.button-secondary { color: #d0def5; border: 1px solid var(--line); background: rgba(255, 255, 255, .035); }
.hero-footnote { margin: 25px 0 0; color: #7488aa; font-size: 12px; letter-spacing: .06em; }

.hero-visual { position: relative; min-width: 0; padding: 0 0 22px 15px; }
.visual-glow { position: absolute; inset: 4% -5% -4% 9%; border-radius: 50%; background: radial-gradient(circle, rgba(55, 111, 230, .26), transparent 68%); filter: blur(20px); }
.desktop-preview { position: relative; overflow: hidden; width: 100%; max-width: 720px; aspect-ratio: 1.23; border: 1px solid rgba(192, 219, 255, .3); border-radius: 18px; background: radial-gradient(circle at 74% 15%, #39539b, transparent 42%), linear-gradient(155deg, #253b7c, #0b1740 64%, #111d48); box-shadow: 0 35px 90px rgba(0, 3, 22, .42), inset 0 1px rgba(255,255,255,.2); transform: perspective(1200px) rotateY(-5deg) rotateX(2deg); }
.desktop-topbar { display: flex; align-items: center; gap: 13px; height: 41px; padding: 0 18px; background: rgba(5, 12, 36, .58); border-bottom: 1px solid rgba(255,255,255,.1); font-size: 11px; color: #eef2ff; white-space: nowrap; }
.desktop-apple { font-size: 15px; }
.desktop-spacer { flex: 1; }
.menubar-active { display: inline-flex; align-items: center; gap: 7px; border-radius: 7px; background: rgba(209, 226, 255, .18); padding: 5px 8px; }
.menubar-active b { font-weight: 600; }
.mini-fluo, .heading-icon { display: inline-grid; place-items: center; border-radius: 5px; background: linear-gradient(140deg, #79f3ce, #5ab9fa); color: #10243f; font: 800 11px -apple-system, BlinkMacSystemFont, sans-serif; }
.mini-fluo { width: 15px; height: 15px; }
.topbar-dim { opacity: .8; }
.preview-content { position: relative; height: calc(100% - 41px); }
.ambient-orb { position: absolute; border-radius: 50%; filter: blur(14px); }
.ambient-orb-one { top: 21%; left: 6%; width: 180px; height: 180px; background: rgba(99, 140, 239, .28); }
.ambient-orb-two { bottom: -15%; right: -8%; width: 250px; height: 250px; background: rgba(81, 194, 207, .17); }
.floating-label { position: absolute; left: 8%; top: 26%; color: rgba(224, 242, 255, .88); font-size: clamp(20px, 2vw, 30px); font-weight: 700; line-height: 1.45; letter-spacing: -.04em; }
.popover { position: absolute; z-index: 1; top: 20px; right: 23px; width: 365px; border: 1px solid rgba(212, 225, 255, .35); border-radius: 20px; background: rgba(21, 33, 66, .85); box-shadow: 0 20px 45px rgba(2, 7, 29, .38), inset 0 1px rgba(255,255,255,.14); backdrop-filter: blur(28px); padding: 15px 16px 0; }
.popover-heading { display: flex; align-items: center; gap: 8px; padding-bottom: 11px; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 12px; font-weight: 700; }
.heading-icon { width: 20px; height: 20px; }
.live-chip { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; color: #b6f7e7; font-size: 10px; font-weight: 500; }
.live-chip i { width: 5px; height: 5px; }
.group-label { margin: 13px 1px 7px; color: #9bb1d4; font-size: 10px; font-weight: 700; letter-spacing: .05em; }
.transfer-row { border: 1px solid rgba(255,255,255,.09); border-radius: 11px; margin-bottom: 7px; padding: 11px; background: rgba(255,255,255,.055); }
.transfer-top, .transfer-meta { display: flex; align-items: center; }
.transfer-top { gap: 8px; }
.source-icon { display: grid; place-items: center; flex: none; width: 27px; height: 27px; border-radius: 8px; font: 800 13px -apple-system, BlinkMacSystemFont, sans-serif; }
.chrome-icon { background: #d8edff; color: #2685cf; }
.brew-icon { background: #f8d7b1; color: #9b5129; }
.app-icon { background: #cfdaf5; color: #345590; }
.transfer-name { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.transfer-name strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; font-weight: 700; }
.transfer-name small { color: #93a9cf; font-size: 9px; }
.transfer-speed { margin-left: auto; white-space: nowrap; color: #a7f9df; font-size: 10px; font-weight: 700; }
.progress-track { height: 4px; overflow: hidden; border-radius: 999px; margin: 10px 0 8px; background: rgba(255,255,255,.17); }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #61b9fc, #80f5ce); }
.progress-track .brew-progress { background: #eab98e; }
.transfer-meta { justify-content: space-between; color: #9cb0d0; font-size: 9px; }
.uploads-label { margin-top: 14px; }
.upload-row { margin-bottom: 13px; }
.upload-row .transfer-meta { margin-top: 8px; }
.popover-bottom { display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); margin: 0 -16px; padding: 10px 16px; color: #a5b5d0; font-size: 10px; }
.visual-caption { position: absolute; right: 7px; bottom: -10px; color: #7184a9; font-size: 11px; }

.proof-strip { border-block: 1px solid rgba(172, 206, 255, .13); background: #0d1936; }
.proof-inner { display: grid; grid-template-columns: repeat(3, 1fr); padding-block: 27px; }
.proof-inner div { display: flex; align-items: center; gap: 18px; padding-left: 43px; border-left: 1px solid var(--line); }
.proof-inner div:first-child { border-left: 0; padding-left: 0; }
.proof-inner b { color: var(--mint); font: 800 28px -apple-system, BlinkMacSystemFont, sans-serif; letter-spacing: -.07em; }
.proof-inner span { color: #d1def0; font-size: 13px; line-height: 1.5; }

.section { padding-block: 122px; scroll-margin-top: 40px; }
.section-heading { max-width: 570px; }
.section-kicker { margin-bottom: 20px; }
.section h2, .privacy-card h2 { margin-bottom: 17px; font-size: clamp(36px, 3.5vw, 51px); line-height: 1.29; letter-spacing: -.06em; }
.section h2 span { color: #8da8ce; }
.section-heading > p:last-child, .start-section > div:first-child > p:last-child { color: var(--muted); font-size: 16px; line-height: 1.8; }
.feature-grid { display: grid; grid-template-columns: 1.22fr 1fr 1fr; gap: 16px; margin-top: 43px; }
.feature-card { min-height: 354px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; position: relative; border: 1px solid var(--line); border-radius: 20px; padding: 26px; background: linear-gradient(150deg, rgba(31, 51, 97, .72), rgba(13, 25, 54, .84)); }
.feature-primary { background: radial-gradient(circle at 80% 0%, rgba(73, 189, 189, .18), transparent 43%), linear-gradient(150deg, #213967, #12264b); }
.feature-symbol { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 15px; background: rgba(106, 194, 241, .12); color: #80e9e3; font: 700 34px/1 "Manrope", sans-serif; }
.up-symbol { color: #b0ccff; background: rgba(114, 145, 237, .13); }
.control-symbol { color: #f4d8ae; background: rgba(238, 172, 108, .1); font-size: 25px; }
.feature-index { color: #8dc7cf; font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.feature-card h3 { margin: 11px 0; font-size: 22px; letter-spacing: -.04em; }
.feature-card p { max-width: 320px; margin-bottom: 0; color: #a9bbd7; font-size: 13px; line-height: 1.75; }
.mini-task { position: absolute; right: -10px; top: 31px; display: flex; gap: 23px; flex-wrap: wrap; width: 160px; border: 1px solid rgba(172, 224, 242, .2); border-radius: 11px; padding: 13px; background: rgba(136, 213, 241, .09); color: #d7eeff; font-size: 10px; transform: rotate(8deg); }
.mini-task i { display: block; width: 100%; height: 5px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.19); }
.mini-task i i { width: 63%; background: var(--mint); }

.sources-section { background: #0d1936; border-block: 1px solid rgba(172, 206, 255, .1); }
.sources-layout { display: grid; grid-template-columns: 42% 58%; gap: 50px; }
.sources-layout .section-heading { padding-top: 17px; }
.source-list { padding-right: 50px; }
.source-item { display: flex; align-items: flex-start; gap: 19px; border-bottom: 1px solid var(--line); padding: 22px 0; }
.source-item:first-child { padding-top: 0; }
.source-item:last-child { border-bottom: 0; }
.source-number { margin-top: 4px; color: var(--mint); font: 700 12px -apple-system, BlinkMacSystemFont, sans-serif; }
.source-item div { flex: 1; }
.source-item h3 { margin: 0 0 7px; font-size: 18px; }
.source-item p { margin: 0; color: #a3b4d0; font-size: 13px; line-height: 1.7; }
.source-tag { white-space: nowrap; border: 1px solid var(--line); border-radius: 99px; padding: 5px 9px; color: #8fa5c6; font-size: 10px; }

.privacy-section { padding-top: 72px; }
.privacy-card { display: flex; align-items: flex-start; gap: 28px; border: 1px solid rgba(120, 245, 208, .17); border-radius: 22px; padding: 42px; background: radial-gradient(circle at 91% 8%, rgba(102, 205, 210, .13), transparent 38%), #112440; }
.privacy-icon { display: grid; place-items: center; flex: none; width: 59px; height: 59px; border-radius: 17px; background: rgba(120, 245, 208, .11); color: var(--mint); font-size: 27px; }
.privacy-card h2 { font-size: 34px; }
.privacy-card p:last-child { max-width: 650px; margin-bottom: 0; color: #adbfda; font-size: 14px; line-height: 1.75; }
.start-section { display: grid; grid-template-columns: 1fr 1fr; gap: 85px; align-items: center; padding-top: 85px; }
.start-section h2 { white-space: nowrap; }
.command-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #101e3c; box-shadow: 0 20px 55px rgba(0, 5, 24, .16); }
.command-header { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding: 17px 21px; color: #8199bd; font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.release-status { display: flex; align-items: center; gap: 12px; padding: 29px 22px; color: var(--mint); font-size: 20px; font-weight: 600; }
.command-card p { margin: 0; border-top: 1px solid var(--line); padding: 17px 21px; color: #8fa4c3; font-size: 12px; line-height: 1.6; }
.site-footer { border-top: 1px solid var(--line); background: #071029; }
.footer-inner { gap: 18px; min-height: 98px; color: #8397b8; font-size: 12px; }
.footer-inner .brand { color: #edf5ff; font-size: 20px; }
.footer-inner > span:nth-child(2) { margin-left: auto; }
.footer-inner > span:last-child { margin-left: 35px; }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 45% 55%; }
  h1 { font-size: clamp(49px, 5.2vw, 65px); }
  .desktop-preview { transform: none; }
  .popover { right: 12px; width: 330px; }
  .floating-label { left: 5%; }
  .sources-layout { gap: 24px; }
  .source-list { padding-right: 20px; }
}
@media (max-width: 850px) {
  .container { width: min(100% - 44px, 680px); }
  .hero { grid-template-columns: 1fr; gap: 50px; padding-top: 70px; padding-bottom: 84px; }
  .hero-copy { padding-right: 0; }
  .hero-visual { padding-left: 0; }
  .desktop-preview { max-width: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-primary { grid-column: 1 / -1; min-height: 275px; }
  .feature-card { min-height: 300px; }
  .sources-layout { grid-template-columns: 1fr; gap: 42px; }
  .source-list { padding-right: 0; }
  .start-section { gap: 35px; }
}
@media (max-width: 600px) {
  .container { width: calc(100% - 36px); }
  .header-inner { height: 70px; }
  .brand { font-size: 24px; }
  .brand img { width: 35px; height: 35px; }
  .site-header nav { gap: 15px; font-size: 12px; }
  .site-header nav a:nth-child(2) { display: none; }
  .site-header .nav-cta { padding: 9px 10px; }
  .site-header .nav-cta span { display: none; }
  .hero { padding-top: 60px; gap: 45px; }
  h1 { margin-top: 26px; font-size: clamp(42px, 11.5vw, 63px); }
  .hero-description { font-size: 15px; line-height: 1.8; }
  .hero-actions { align-items: stretch; }
  .button { min-height: 47px; }
  .desktop-preview { min-height: 430px; aspect-ratio: auto; border-radius: 14px; }
  .desktop-topbar { height: 33px; gap: 7px; padding: 0 8px; font-size: 8px; }
  .topbar-dim { display: none; }
  .menubar-active { gap: 4px; padding: 4px; }
  .preview-content { height: calc(100% - 33px); }
  .floating-label { display: none; }
  .popover { top: 13px; right: 13px; left: 13px; width: auto; padding: 10px 10px 0; border-radius: 15px; }
  .popover-heading { padding-bottom: 8px; }
  .group-label { margin: 8px 0 6px; }
  .transfer-row { padding: 8px; margin-bottom: 5px; }
  .progress-track { margin: 6px 0; }
  .uploads-label { margin-top: 9px; }
  .upload-row { margin-bottom: 7px; }
  .popover-bottom { margin: 0 -10px; padding: 8px 10px; }
  .visual-caption { right: 0; }
  .proof-inner { gap: 0; padding-block: 21px; }
  .proof-inner div { display: block; padding: 0 10px; }
  .proof-inner div:first-child { padding-left: 0; }
  .proof-inner b { display: block; margin-bottom: 8px; font-size: 21px; }
  .proof-inner span { font-size: 11px; }
  .section { padding-block: 85px; }
  .section h2 { font-size: 36px; }
  .feature-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 30px; }
  .feature-primary { grid-column: auto; }
  .feature-card, .feature-primary { min-height: 270px; }
  .source-item { gap: 11px; }
  .source-tag { font-size: 9px; padding: 5px 7px; }
  .privacy-section { padding-top: 56px; }
  .privacy-card { display: block; padding: 27px; }
  .privacy-icon { margin-bottom: 22px; }
  .privacy-card h2 { font-size: 28px; }
  .start-section { display: block; padding-top: 73px; }
  .start-section h2 { white-space: normal; }
  .command-card { margin-top: 30px; }
  .footer-inner { flex-wrap: wrap; justify-content: space-between; gap: 13px; padding-block: 25px; }
  .footer-inner > span:nth-child(2) { margin-left: 0; }
  .footer-inner > span:last-child { width: 100%; margin-left: 0; }
}
@media (max-width: 360px) {
  .site-header nav { gap: 9px; }
  .site-header .nav-cta { font-size: 11px; }
  .eyebrow { font-size: 10px; }
  .hero-actions .button { width: 100%; }
  .desktop-preview { min-height: 420px; }
  .popover { top: 9px; right: 9px; left: 9px; }
  .transfer-name strong { font-size: 10px; }
  .transfer-speed { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}