:root {
  --bg: #f7f8fc;
  --surface: rgba(255,255,255,.88);
  --surface-solid: #ffffff;
  --ink: #151a2b;
  --muted: #657087;
  --line: #e7eaf2;
  --primary: #6256f5;
  --primary-2: #2ea7ff;
  --soft: #eef0ff;
  --success: #168a5b;
  --warning: #b76a00;
  --shadow: 0 24px 60px rgba(29,36,73,.10);
  --shadow-sm: 0 12px 30px rgba(29,36,73,.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(98,86,245,.11), transparent 26%),
    radial-gradient(circle at 88% 14%, rgba(46,167,255,.10), transparent 24%),
    var(--bg);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }
button, input, textarea, select { font: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; background: #fff; padding: 10px 14px; border-radius: 10px; box-shadow: var(--shadow-sm); }
.skip-link:focus { top: 16px; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid rgba(231,234,242,.85);
  background: rgba(247,248,252,.82);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; min-width: 196px; }
.brand img { width: 196px; height: 54px; object-fit: contain; object-position: left center; display: block; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a { color: #4d566d; padding: 10px 13px; border-radius: 11px; font-size: 14px; font-weight: 600; }
.main-nav a:hover, .main-nav a.active { background: #fff; color: var(--ink); box-shadow: 0 8px 24px rgba(31,39,74,.07); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.mobile-toggle { display: none; border: 0; background: #fff; width: 44px; height: 44px; border-radius: 13px; box-shadow: var(--shadow-sm); cursor: pointer; }
.mobile-toggle span, .mobile-toggle::before, .mobile-toggle::after { content: ""; display: block; width: 19px; height: 2px; margin: 4px auto; background: #27304a; border-radius: 2px; transition: .25s; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 18px; border-radius: 14px; border: 1px solid transparent; cursor: pointer; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 14px 28px rgba(98,86,245,.24); }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--ink); box-shadow: 0 10px 24px rgba(31,39,74,.06); }
.btn-ghost { background: transparent; border-color: var(--line); color: #475169; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; border-radius: 999px; background: rgba(255,255,255,.82); border: 1px solid rgba(229,232,243,.92); color: #5a6276; font-size: 13px; font-weight: 700; box-shadow: 0 8px 22px rgba(31,39,74,.05); }
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #32b67a; box-shadow: 0 0 0 5px rgba(50,182,122,.12); }
.hero { padding: 82px 0 56px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 68px; }
.hero-copy h1 { margin: 20px 0 18px; font-size: clamp(42px, 5.2vw, 72px); line-height: 1.08; letter-spacing: -2.8px; }
.hero-copy h1 span { background: linear-gradient(110deg, var(--primary) 18%, #2b91ed 82%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-copy p { margin: 0; max-width: 670px; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-note { margin-top: 20px; color: #7a8296; font-size: 13px; }
.hero-stage { position: relative; min-height: 570px; }
.glow { position: absolute; inset: 0; background: radial-gradient(circle at 52% 45%, rgba(95,95,255,.23), transparent 48%); filter: blur(12px); }
.app-shell { position: absolute; inset: 26px 0 0 28px; padding: 16px; border-radius: 32px; background: rgba(255,255,255,.72); border: 1px solid rgba(255,255,255,.86); box-shadow: var(--shadow); backdrop-filter: blur(22px); transform: rotate(1.5deg); }
.app-window { height: 100%; min-height: 510px; overflow: hidden; border-radius: 23px; background: #fff; border: 1px solid #edf0f6; }
.window-top { height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; border-bottom: 1px solid #eef0f5; }
.dots { display: flex; gap: 7px; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: #d6dbe7; }
.window-pill { width: 160px; height: 30px; border-radius: 10px; background: #f3f5f9; }
.dashboard { display: grid; grid-template-columns: 155px 1fr; min-height: 453px; }
.side { padding: 20px 13px; border-right: 1px solid #edf0f5; background: #fafbfe; }
.side-title { height: 34px; border-radius: 10px; background: linear-gradient(90deg, #6c60f7, #4ca8ff); margin-bottom: 20px; }
.side-line { height: 13px; border-radius: 7px; background: #e9ecf4; margin: 15px 8px; }
.side-line:nth-child(3) { width: 74%; }
.side-line:nth-child(4) { width: 86%; }
.side-line:nth-child(5) { width: 66%; }
.board { padding: 22px; background: linear-gradient(180deg,#fff,#fbfcff); }
.board-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.board-title { width: 185px; height: 24px; border-radius: 9px; background: #252d43; }
.board-action { width: 92px; height: 34px; border-radius: 11px; background: var(--soft); }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stat { min-height: 92px; border: 1px solid #edf0f6; border-radius: 15px; padding: 14px; box-shadow: 0 8px 20px rgba(38,48,84,.05); }
.stat b { display: block; width: 52%; height: 12px; border-radius: 6px; background: #dfe3ed; margin-bottom: 14px; }
.stat strong { display: block; width: 68%; height: 25px; border-radius: 8px; background: linear-gradient(90deg,#6e62fa,#58afff); }
.flow-card { margin-top: 14px; padding: 16px; border-radius: 17px; border: 1px solid #edf0f6; }
.flow-row { display: grid; grid-template-columns: repeat(5, 1fr); align-items: center; gap: 8px; }
.flow-node { text-align: center; }
.flow-node i { display: block; width: 34px; height: 34px; margin: 0 auto 8px; border-radius: 12px; background: #eef0ff; border: 1px solid #dddfff; }
.flow-node span { display: block; height: 9px; margin: 0 auto; width: 75%; border-radius: 5px; background: #dfe3ed; }
.product-list { margin-top: 14px; display: grid; gap: 10px; }
.product-row { display: grid; grid-template-columns: 46px 1.3fr 1fr 70px; gap: 11px; align-items: center; padding: 10px; border: 1px solid #edf0f5; border-radius: 13px; }
.thumb { width: 46px; height: 40px; border-radius: 10px; background: linear-gradient(135deg,#dfedff,#ece8ff); }
.row-line { height: 10px; border-radius: 6px; background: #e7eaf1; }
.row-status { height: 24px; border-radius: 999px; background: #e8f8f0; }
.floating-card { position: absolute; padding: 14px 17px; border-radius: 17px; background: rgba(255,255,255,.94); border: 1px solid rgba(232,235,244,.95); box-shadow: var(--shadow-sm); backdrop-filter: blur(16px); }
.float-a { left: -18px; bottom: 78px; }
.float-b { right: -12px; top: 50px; }
.floating-card strong { display: block; font-size: 14px; }
.floating-card small { color: var(--muted); }
.section { padding: 88px 0; }
.section-tight { padding: 55px 0; }
.section-head { max-width: 760px; margin-bottom: 38px; }
.eyebrow { display: inline-block; color: var(--primary); font-size: 13px; letter-spacing: .08em; font-weight: 800; text-transform: uppercase; }
.section h2 { margin: 10px 0 12px; font-size: clamp(31px, 3.4vw, 47px); line-height: 1.2; letter-spacing: -1.2px; }
.section-head p { margin: 0; color: var(--muted); font-size: 17px; }
.problem-grid, .cap-grid, .scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { position: relative; padding: 26px; border: 1px solid rgba(229,232,242,.95); border-radius: var(--radius-lg); background: rgba(255,255,255,.82); box-shadow: 0 14px 35px rgba(31,39,74,.06); backdrop-filter: blur(12px); }
.card h3 { margin: 16px 0 8px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }
.icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: linear-gradient(135deg,#f0efff,#eaf7ff); color: var(--primary); font-weight: 900; font-size: 20px; }
.process { border-radius: 30px; padding: 34px; background: #171d31; color: #fff; box-shadow: var(--shadow); overflow: hidden; position: relative; }
.process::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; background: rgba(71,151,255,.17); filter: blur(10px); right: -170px; top: -230px; }
.process-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(6,1fr); gap: 10px; }
.process-step { min-height: 156px; padding: 18px; border-radius: 18px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.1); }
.process-step b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 12px; background: rgba(255,255,255,.12); color: #cbd5ff; }
.process-step h3 { font-size: 16px; margin: 19px 0 7px; }
.process-step p { margin: 0; color: #aeb7ce; font-size: 13px; line-height: 1.55; }
.cap-grid { grid-template-columns: repeat(4, 1fr); }
.cap-grid .card { min-height: 260px; }
.cap-number { position: absolute; right: 20px; top: 16px; color: #e1e4ed; font-size: 36px; font-weight: 900; }
.scene-grid .card { min-height: 240px; overflow: hidden; }
.scene-label { display: inline-flex; padding: 6px 9px; border-radius: 8px; background: #f1f2ff; color: var(--primary); font-size: 12px; font-weight: 800; }
.scene-card ul { margin: 16px 0 0; padding: 0; list-style: none; }
.scene-card li { margin: 8px 0; color: #5d667c; font-size: 14px; }
.scene-card li::before { content: "✓"; display: inline-grid; place-items: center; width: 18px; height: 18px; margin-right: 8px; border-radius: 50%; background: #eaf8f1; color: #169063; font-size: 11px; font-weight: 900; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.platform { padding: 20px; border-radius: 18px; background: #fff; border: 1px solid var(--line); box-shadow: 0 10px 25px rgba(31,39,74,.05); }
.platform-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.platform-logo { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; background: #f2f4f9; font-weight: 900; }
.status { padding: 5px 9px; border-radius: 999px; font-size: 11px; font-weight: 800; }
.status-test { color: #825200; background: #fff2d9; }
.status-ready { color: #126c4b; background: #e7f7ef; }
.status-plan { color: #556079; background: #eff1f6; }
.platform h3 { font-size: 17px; margin: 15px 0 5px; }
.platform p { margin: 0; color: var(--muted); font-size: 13px; }
.trust-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: stretch; gap: 22px; }
.trust-panel { padding: 36px; border-radius: 28px; background: linear-gradient(145deg,#6a5df6,#2f9af2); color: #fff; box-shadow: var(--shadow); }
.trust-panel h2 { font-size: 38px; margin-top: 12px; }
.trust-panel p { color: rgba(255,255,255,.82); }
.trust-points { display: grid; gap: 12px; }
.trust-item { padding: 20px; border-radius: 18px; border: 1px solid var(--line); background: #fff; display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start; }
.trust-item b { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; background: var(--soft); color: var(--primary); }
.trust-item h3 { margin: 0 0 4px; font-size: 16px; }
.trust-item p { margin: 0; color: var(--muted); font-size: 14px; }
.faq { display: grid; gap: 10px; }
.faq-item { border: 1px solid var(--line); border-radius: 17px; background: #fff; overflow: hidden; }
.faq-button { width: 100%; border: 0; background: #fff; padding: 20px 22px; display: flex; align-items: center; justify-content: space-between; text-align: left; font-weight: 800; color: var(--ink); cursor: pointer; }
.faq-button span:last-child { font-size: 22px; color: #8a92a6; transition: transform .2s; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer p { margin: 0; padding: 0 22px 20px; color: var(--muted); }
.faq-item.open .faq-answer { max-height: 220px; }
.faq-item.open .faq-button span:last-child { transform: rotate(45deg); }
.cta { padding: 44px; border-radius: 30px; background: linear-gradient(135deg,#171d31,#283254); color: #fff; display: flex; justify-content: space-between; align-items: center; gap: 24px; box-shadow: var(--shadow); }
.cta h2 { margin: 0 0 8px; font-size: 34px; }
.cta p { margin: 0; color: #b7c0d6; }
.site-footer { margin-top: 80px; padding: 48px 0 26px; border-top: 1px solid var(--line); background: rgba(255,255,255,.62); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, .7fr); gap: 32px; }
.footer-brand img { width: 180px; }
.footer-brand .footer-logo-full { width: 210px; max-height: 180px; object-fit: contain; object-position: left center; }
.footer-brand p { max-width: 420px; color: var(--muted); font-size: 14px; }
.footer-col h3 { margin: 4px 0 12px; font-size: 14px; }
.footer-col a { display: block; margin: 8px 0; color: #687188; font-size: 13px; }
.footer-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; color: #7b8396; font-size: 12px; }
.footer-bottom a:hover { color: var(--primary); }
.page-hero { padding: 72px 0 38px; }
.page-hero-inner { padding: 46px; border-radius: 30px; background: linear-gradient(135deg,#191f33,#343f66); color: #fff; box-shadow: var(--shadow); }
.page-hero h1 { margin: 12px 0 10px; font-size: clamp(38px, 5vw, 60px); line-height: 1.12; }
.page-hero p { max-width: 760px; margin: 0; color: #bfc7da; font-size: 17px; }
.content-layout { display: grid; grid-template-columns: 250px 1fr; gap: 30px; align-items: start; }
.side-nav { position: sticky; top: 100px; padding: 16px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.side-nav a { display: block; padding: 10px 12px; margin: 2px 0; border-radius: 10px; color: #667087; font-size: 14px; }
.side-nav a:hover { background: var(--soft); color: var(--primary); }
.prose { padding: 34px; border-radius: 24px; background: #fff; border: 1px solid var(--line); box-shadow: 0 12px 32px rgba(31,39,74,.05); }
.prose h2 { margin-top: 34px; font-size: 26px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 24px; font-size: 19px; }
.prose p, .prose li { color: #5d667c; }
.prose ul, .prose ol { padding-left: 24px; }
.notice { padding: 18px 20px; border-radius: 15px; background: #f2f3ff; border: 1px solid #e2e4ff; color: #4d5480; }
.connection-list { display: grid; gap: 14px; }
.connection-row { display: grid; grid-template-columns: 56px 1fr auto; gap: 18px; align-items: center; padding: 22px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.connection-row .platform-logo { width: 56px; height: 56px; }
.connection-row h3 { margin: 0 0 4px; }
.connection-row p { margin: 0; color: var(--muted); font-size: 14px; }
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.help-card { padding: 26px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.help-card h3 { margin: 12px 0 6px; }
.help-card p { color: var(--muted); margin: 0; }
.contact-box { margin-top: 22px; padding: 26px; border-radius: 20px; background: #191f33; color: #fff; }
.contact-box p { color: #bfc7da; }
.modal-backdrop { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; padding: 20px; background: rgba(11,15,28,.52); backdrop-filter: blur(10px); }
.modal-backdrop.show { display: grid; }
.modal { width: min(100%, 560px); max-height: 90vh; overflow: auto; padding: 28px; border-radius: 24px; background: #fff; box-shadow: 0 30px 80px rgba(0,0,0,.24); }
.modal-head { display: flex; justify-content: space-between; align-items: start; gap: 16px; }
.modal h2 { margin: 0 0 5px; }
.modal p { margin: 0; color: var(--muted); }
.modal-close { width: 40px; height: 40px; border: 0; border-radius: 12px; background: #f2f4f8; cursor: pointer; font-size: 20px; }
.form-grid { margin-top: 20px; display: grid; gap: 14px; }
.field label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 800; color: #454f68; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid #dfe3ec; border-radius: 12px; padding: 12px 13px; color: var(--ink); background: #fff; outline: 0; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: #8177f8; box-shadow: 0 0 0 4px rgba(98,86,245,.10); }
.form-note { padding: 13px; border-radius: 12px; background: #f6f7fb; color: #747d91; font-size: 12px; }
.toast { position: fixed; right: 22px; bottom: 22px; z-index: 120; opacity: 0; transform: translateY(14px); pointer-events: none; padding: 13px 16px; border-radius: 13px; background: #151a2b; color: #fff; box-shadow: var(--shadow-sm); transition: .25s; }
.toast.show { opacity: 1; transform: translateY(0); }
@media (max-width: 1020px) {
  .main-nav, .nav-actions .btn-ghost { display: none; }
  .mobile-toggle { display: block; }
  .main-nav.mobile-open { display: flex; position: fixed; left: 20px; right: 20px; top: 84px; flex-direction: column; align-items: stretch; padding: 14px; border-radius: 20px; background: #fff; box-shadow: var(--shadow); }
  .main-nav.mobile-open a { padding: 13px 15px; }
  .hero-grid { grid-template-columns: 1fr; gap: 42px; }
  .hero-copy { text-align: center; }
  .hero-copy p { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-stage { min-height: 510px; }
  .app-shell { inset: 0 3% 0 3%; }
  .process-grid { grid-template-columns: repeat(3, 1fr); }
  .cap-grid, .platforms { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; }
  .content-layout { grid-template-columns: 1fr; }
  .side-nav { position: static; display: flex; gap: 6px; overflow-x: auto; }
  .side-nav a { white-space: nowrap; }
}
@media (max-width: 720px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .nav-wrap { min-height: 66px; }
  .brand img { width: 154px; }
  .nav-actions .btn-primary { display: none; }
  .hero { padding-top: 52px; }
  .hero-copy h1 { letter-spacing: -1.5px; }
  .hero-copy p { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .hero-stage { min-height: 390px; }
  .app-shell { padding: 10px; border-radius: 22px; }
  .app-window { min-height: 370px; }
  .dashboard { grid-template-columns: 92px 1fr; min-height: 318px; }
  .window-top { height: 42px; }
  .side { padding: 12px 8px; }
  .side-title { height: 25px; margin-bottom: 12px; }
  .side-line { height: 8px; margin: 11px 5px; }
  .board { padding: 12px; }
  .board-title { width: 115px; height: 17px; }
  .board-action { width: 58px; height: 25px; }
  .stat-grid { gap: 6px; }
  .stat { min-height: 62px; padding: 8px; border-radius: 10px; }
  .stat b { height: 7px; margin-bottom: 8px; }
  .stat strong { height: 16px; }
  .flow-card { padding: 9px; }
  .flow-node i { width: 23px; height: 23px; border-radius: 8px; }
  .flow-node span { height: 6px; }
  .product-row { grid-template-columns: 31px 1fr 45px; padding: 6px; }
  .product-row .row-line:nth-child(3) { display:none; }
  .thumb { width: 31px; height: 28px; }
  .float-a { left: 0; bottom: 8px; }
  .float-b { right: 0; top: 28px; }
  .floating-card { padding: 9px 11px; }
  .floating-card strong { font-size: 12px; }
  .floating-card small { font-size: 10px; }
  .section { padding: 62px 0; }
  .problem-grid, .cap-grid, .scene-grid, .platforms, .help-grid { grid-template-columns: 1fr; }
  .process { padding: 20px; }
  .process-grid { grid-template-columns: repeat(2,1fr); }
  .process-step { min-height: 135px; }
  .cta { padding: 28px; flex-direction: column; align-items: stretch; }
  .cta h2 { font-size: 28px; }
  .cta .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1/-1; }
  .page-hero { padding-top: 46px; }
  .page-hero-inner { padding: 30px 24px; }
  .prose { padding: 24px 20px; }
  .connection-row { grid-template-columns: 50px 1fr; }
  .connection-row .status { grid-column: 2; justify-self: start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* FLYPIGBOX brand assets */
.window-brand { display:flex; align-items:center; gap:8px; color:#315271; font-size:12px; font-weight:800; letter-spacing:.01em; }
.window-brand img { width:32px; height:28px; object-fit:contain; }
.hero-brand-signature { margin-top:20px; display:inline-flex; align-items:center; gap:11px; padding:8px 12px; border:1px solid rgba(214,225,238,.95); border-radius:15px; background:rgba(255,255,255,.68); box-shadow:0 8px 24px rgba(31,39,74,.05); }
.hero-brand-signature img { width:42px; height:36px; object-fit:contain; }
.hero-brand-signature span { display:grid; line-height:1.25; text-align:left; }
.hero-brand-signature b { font-size:13px; letter-spacing:.05em; color:#145a92; }
.hero-brand-signature small { color:#7a8296; font-size:11px; }
@media (max-width:1020px){ .hero-brand-signature { margin-inline:auto; } }
@media (max-width:560px){ .brand { min-width:150px; } .brand img { width:150px; height:44px; } .nav-wrap{min-height:66px;} .window-brand span{display:none;} }