:root {
  --ground:#fbfbfd; --panel:#fff; --panel-soft:#f7f6fc; --ink:#1d1d1f;
  --muted:#6e6e73; --faint:#86868b; --hair:#e3e1ea; --hair-soft:#eceaf3;
  --brand:#6d3bef; --brand-dark:#4c22c9; --brand-soft:#a78bfa;
  --brand-wash:rgba(109,59,239,.08); --good:#1a8f4c; --warn:#8a5a00;
  --max:1180px;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SF Mono","Cascadia Mono",ui-monospace,Menlo,Consolas,monospace;
}
body.product-moving {
  --brand:#6554e8; --brand-dark:#4333bd; --brand-soft:#9d94f4;
  --brand-wash:rgba(101,84,232,.08);
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { overflow-x:hidden; background:var(--ground); color:var(--ink); font:16px/1.7 var(--sans); -webkit-font-smoothing:antialiased; }
::selection { background:var(--brand-wash); }
a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }
button,input { font:inherit; }
button { color:inherit; }
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible { outline:2px solid var(--brand); outline-offset:3px; }
.stage { position:fixed; inset:0; z-index:-1; pointer-events:none; }
.stage::before { content:""; position:absolute; inset:0; background:radial-gradient(980px 500px at 80% -8%,var(--brand-wash),transparent 64%),radial-gradient(760px 420px at 5% 24%,rgba(167,139,250,.06),transparent 58%); }
.stage::after { content:""; position:absolute; inset:0; opacity:.42; background-image:linear-gradient(var(--brand-wash) 1px,transparent 1px),linear-gradient(90deg,var(--brand-wash) 1px,transparent 1px); background-size:56px 56px; mask-image:radial-gradient(ellipse 90% 54% at 50% 0%,#000 8%,transparent 74%); }
.wrap { width:min(var(--max),calc(100% - 56px)); margin:0 auto; }
.eyebrow { color:var(--brand); font:16px/1.5 var(--mono); letter-spacing:.21em; text-transform:uppercase; }
.section { padding:100px 0; }
.compact-section { padding-top:28px; }
.section-head { max-width:750px; margin-bottom:48px; }
.section-head .rule { display:flex; align-items:center; gap:14px; }
.section-head .rule::after { content:""; width:130px; height:1px; background:linear-gradient(90deg,var(--brand-soft),transparent); }
.section-head h2 { margin-top:14px; font-size:clamp(30px,4vw,46px); line-height:1.15; letter-spacing:-.025em; }
.section-head p { margin-top:14px; color:var(--muted); font-size:17px; }
.button { min-height:48px; display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:11px 24px; border:1px solid transparent; border-radius:999px; background:none; cursor:pointer; font-weight:650; transition:.2s ease; }
.button-primary { background:var(--brand); color:#fff; box-shadow:0 12px 30px -16px var(--brand); }
.button-primary:hover { transform:translateY(-1px); background:var(--brand-dark); }
.button-secondary { border-color:var(--hair); background:var(--panel); color:var(--brand-dark); }
.button-secondary:hover { border-color:var(--brand-soft); background:var(--brand-wash); }
.button:disabled,.button[aria-disabled="true"] { cursor:not-allowed; opacity:.5; transform:none; box-shadow:none; }

header { position:sticky; top:0; z-index:50; border-bottom:1px solid var(--hair-soft); background:rgba(251,251,253,.84); backdrop-filter:saturate(180%) blur(18px); }
.nav { height:60px; display:flex; align-items:center; justify-content:space-between; }
.logo { display:flex; align-items:center; gap:11px; font-size:17px; font-weight:750; letter-spacing:-.01em; }
.logo-mark { width:28px; height:28px; display:grid; place-items:center; flex:none; border-radius:8px; background:linear-gradient(145deg,var(--brand-soft),var(--brand) 60%,var(--brand-dark)); color:#fff; box-shadow:inset 0 1px 1px rgba(255,255,255,.4); font-size:16px; font-weight:800; }
.doc-no { margin-left:6px; color:var(--faint); font:16px/1 var(--mono); letter-spacing:.16em; }
.nav-links { display:flex; align-items:center; gap:26px; margin-left:auto; margin-right:22px; }
.nav-links a { color:var(--muted); font-size:16px; }
.nav-links a:hover { color:var(--ink); }
.nav-cta { padding:8px 17px; border-radius:999px; background:var(--brand); color:#fff; font-size:16px; }

.hero { padding:90px 0 40px; text-align:center; }
.hero > .wrap > .eyebrow { display:inline-flex; align-items:center; gap:10px; }
.hero > .wrap > .eyebrow::before,.hero > .wrap > .eyebrow::after { content:""; width:30px; height:1px; background:var(--brand-soft); }
.hero h1 { max-width:900px; margin:22px auto 0; font-size:clamp(42px,6.5vw,74px); line-height:1.06; letter-spacing:-.038em; text-wrap:balance; }
.hero-sub { max-width:720px; margin:24px auto 0; color:var(--muted); font-size:clamp(16px,1.7vw,20px); text-wrap:balance; }
.hero-actions { display:flex; justify-content:center; gap:14px; flex-wrap:wrap; margin-top:34px; }
.hero-note { margin-top:17px; color:var(--faint); font-size:16px; }
.spec-strip { display:flex; justify-content:center; flex-wrap:wrap; margin-top:44px; }
.spec-item { min-width:165px; padding:5px 28px; border-right:1px solid var(--hair); }
.spec-item:last-child { border-right:0; }
.spec-item strong { display:block; color:var(--brand); font:700 21px/1.25 var(--mono); }
.spec-item span { display:block; margin-top:3px; color:var(--muted); font-size:16px; letter-spacing:.04em; }
.shot-stage { position:relative; max-width:1000px; margin:62px auto 0; }
.shot-stage::before { content:""; position:absolute; inset:-30px -50px; z-index:-1; background:radial-gradient(60% 70% at 50% 38%,var(--brand-wash),transparent 70%); filter:blur(8px); }
.shot-frame { overflow:hidden; border:1px solid var(--hair); border-radius:14px; background:var(--panel); box-shadow:0 2px 6px rgba(0,0,0,.04),0 40px 100px -40px var(--brand); }
.window-bar { height:38px; display:flex; align-items:center; gap:8px; padding:0 15px; border-bottom:1px solid var(--hair-soft); background:linear-gradient(#fafafc,#f2f1f7); }
.window-bar i { width:11px; height:11px; border-radius:50%; background:#dcdbe4; }
.window-bar i:nth-child(1) { background:#ff5f57; } .window-bar i:nth-child(2) { background:#febc2e; } .window-bar i:nth-child(3) { background:#28c840; }
.window-bar span { margin-left:10px; color:var(--faint); font:16px/1 var(--mono); letter-spacing:.04em; }
.zoomable { width:100%; cursor:zoom-in; }
.shot-caption { display:flex; justify-content:space-between; gap:16px; margin-top:13px; padding:0 4px; color:var(--faint); font:16px/1.5 var(--mono); letter-spacing:.08em; }

.workflow { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.flow-card { min-height:235px; padding:29px 28px; border:1px solid var(--hair); border-radius:16px; background:var(--panel); box-shadow:0 18px 45px -38px var(--brand); }
.flow-index { color:var(--brand); font:16px/1.5 var(--mono); letter-spacing:.14em; }
.flow-card h3 { margin-top:38px; font-size:22px; letter-spacing:-.015em; }
.flow-card p { margin-top:10px; color:var(--muted); font-size:16px; }
.feature-table { overflow:hidden; border:1px solid var(--hair); border-radius:14px; background:var(--panel); }
.feature-row { display:grid; grid-template-columns:210px 1fr; border-top:1px solid var(--hair-soft); }
.feature-row:first-child { border-top:0; }
.feature-key { padding:24px 26px; border-right:1px solid var(--hair-soft); color:var(--brand); font:16px/1.5 var(--mono); letter-spacing:.06em; }
.feature-value { padding:22px 28px; }
.feature-value h3 { font-size:17px; }
.feature-value p { margin-top:5px; color:var(--muted); font-size:16px; }
.gallery { display:grid; grid-template-columns:repeat(2,1fr); gap:22px; margin-top:52px; }
.gallery figure { overflow:hidden; border:1px solid var(--hair); border-radius:14px; background:var(--panel); box-shadow:0 24px 60px -38px var(--brand); }
.gallery img { width:100%; aspect-ratio:16/10; object-fit:cover; object-position:top; }
.gallery figcaption { padding:13px 16px; border-top:1px solid var(--hair-soft); color:var(--faint); font:16px/1.5 var(--mono); letter-spacing:.08em; }

.purchase-shell { overflow:hidden; display:grid; grid-template-columns:.82fr 1.18fr; border:1px solid var(--hair); border-radius:22px; background:var(--panel); box-shadow:0 34px 90px -52px var(--brand); }
.price-panel { padding:44px 34px; border-right:1px solid var(--hair); background:linear-gradient(145deg,#f4f0ff,#faf9ff 70%); }
.plan-picker { display:grid; gap:12px; margin-top:20px; }
.plan-option { width:100%; padding:18px; border:1px solid var(--hair); border-radius:14px; background:rgba(255,255,255,.75); text-align:left; cursor:pointer; transition:.2s; }
.plan-option:hover { border-color:var(--brand-soft); background:#fff; }
.plan-option.selected { border-color:var(--brand); background:#fff; box-shadow:0 0 0 3px var(--brand-wash); }
.plan-option:active { transform:scale(.992); }
.plan-option-head { display:flex; align-items:baseline; justify-content:space-between; gap:14px; }
.plan-option-title { font-weight:750; }
.plan-option-price { color:var(--brand-dark); font:750 27px/1 var(--mono); letter-spacing:-.04em; }
.plan-option-note,.plan-option-summary { display:block; margin-top:7px; color:var(--muted); font-size:16px; }
.plan-option-summary { margin-top:4px; color:var(--faint); font-size:16px; }
.empty-plan { margin-top:20px; padding:22px; border:1px solid var(--hair); border-radius:14px; background:rgba(255,255,255,.72); }
.empty-plan strong { display:block; font-size:20px; }
.empty-plan p { margin-top:8px; color:var(--muted); font-size:16px; }
.included { margin-top:30px; list-style:none; }
.included li { position:relative; padding:10px 0 10px 25px; border-top:1px solid var(--brand-wash); color:var(--muted); font-size:16px; }
.included li::before { content:"✓"; position:absolute; left:0; color:var(--good); font-weight:750; }
.purchase-main { padding:44px 42px; }
.purchase-main h2 { font-size:28px; letter-spacing:-.02em; }
.purchase-main > p { margin-top:8px; color:var(--muted); }
.step-line { display:grid; grid-template-columns:28px 1fr; gap:13px; margin-top:28px; }
.step-line + .step-line { padding-top:26px; border-top:1px solid var(--hair-soft); }
.step-dot { width:28px; height:28px; display:grid; place-items:center; border-radius:50%; background:var(--brand-wash); color:var(--brand); font:700 16px/1 var(--mono); }
.step-body h3 { font-size:17px; }
.step-body > p { margin-top:4px; color:var(--muted); font-size:16px; }
.checkout-price { margin-top:17px; padding:16px 18px; border:1px solid rgba(109,59,239,.19); border-radius:14px; background:linear-gradient(120deg,#fff,#f7f3ff); }
.checkout-price[hidden],.referrer-feedback[hidden] { display:none; }
.checkout-price-meta { display:flex; align-items:center; justify-content:space-between; gap:12px; color:var(--muted); font-size:16px; }
.checkout-price-meta strong { color:var(--brand-dark); font-size:16px; }
.checkout-price-amount { display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-top:3px; }
.checkout-price-amount strong { color:var(--brand-dark); font:750 clamp(31px,4vw,42px)/1.2 var(--mono); letter-spacing:-.05em; }
.checkout-price-amount del { color:var(--faint); font-size:16px; }
.checkout-price-amount span { margin-left:auto; color:var(--muted); font-size:16px; }
.checkout-price.price-switch { animation:checkout-price-switch .42s ease-out; }
@keyframes checkout-price-switch { from { transform:translateY(5px); background:#ede6ff; } to { transform:translateY(0); background:#f7f3ff; } }
.field { margin-top:16px; }
.field label { display:block; margin-bottom:7px; font-size:16px; font-weight:650; }
.field input { width:100%; height:48px; padding:0 15px; border:1px solid var(--hair); border-radius:10px; background:#fff; color:var(--ink); transition:.2s; }
.field input:focus { border-color:var(--brand-soft); box-shadow:0 0 0 4px var(--brand-wash); outline:none; }
.field input:disabled { background:#f4f4f6; color:var(--faint); }
.field small,.selected-plan-copy { display:block; margin-top:8px; color:var(--muted); font-size:16px; }
.referrer-feedback { margin-top:10px; padding:8px 11px; border-radius:8px; background:rgba(26,143,76,.075); color:var(--good); font-size:16px; }
.referrer-feedback.referrer-enter { animation:referrer-feedback-enter .34s ease-out; }
@keyframes referrer-feedback-enter { from { opacity:0; transform:translateY(5px); } to { opacity:1; transform:translateY(0); } }
.purchase-actions { display:flex; align-items:center; gap:13px; flex-wrap:wrap; margin-top:18px; }
.text-link { border:0; background:none; color:var(--brand); cursor:pointer; font-size:16px; }
.text-link:disabled { color:var(--faint); cursor:not-allowed; }
.status { min-height:24px; margin-top:13px; color:var(--muted); font-size:16px; }
.status.error { color:#a12b2b; } .status.success { color:var(--good); } .status.warn { color:var(--warn); }
.channel-state { margin-top:18px; padding:13px 15px; border:1px solid #eadfbf; border-radius:10px; background:#fffaf0; color:#745114; font-size:16px; }
.redeem-panel { display:none; margin-top:18px; padding:18px; border:1px solid var(--hair); border-radius:12px; background:var(--panel-soft); }
.redeem-panel.open { display:block; }
.delivery { display:none; margin-top:18px; padding:18px; border:1px solid rgba(26,143,76,.25); border-radius:12px; background:rgba(26,143,76,.055); }
.delivery.open { display:block; }
.code-box { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-top:10px; padding:13px 14px; border:1px dashed rgba(26,143,76,.38); border-radius:9px; background:#fff; }
.code-box code { overflow-wrap:anywhere; font:700 16px/1.6 var(--mono); }
.copy-button,.support-copy { flex:none; padding:6px 12px; border:1px solid var(--hair); border-radius:8px; background:#fff; color:var(--brand); cursor:pointer; font-size:16px; }
.delivery-followup { display:grid; grid-template-columns:1fr auto; gap:20px; align-items:center; margin-top:18px; padding-top:18px; border-top:1px solid rgba(26,143,76,.18); }
.delivery-followup strong { display:block; margin-top:5px; font-size:16px; }
.delivery-followup p { margin-top:5px; color:var(--muted); font-size:16px; }
.delivery-followup-actions { display:flex; align-items:center; gap:12px; flex-wrap:wrap; justify-content:flex-end; }
.delivery-guide { margin-top:18px; padding:18px; border:1px solid var(--hair); border-radius:12px; background:#fff; }
.delivery-guide strong { display:block; font-size:16px; }
.delivery-guide p { margin:8px 0 16px; color:var(--muted); font-size:16px; }
.checkout-reminder { width:min(500px,calc(100% - 32px)); max-height:calc(100dvh - 32px); margin:auto; padding:28px; border:1px solid var(--hair); border-radius:18px; background:var(--panel); color:var(--ink); box-shadow:0 30px 90px rgba(28,18,55,.25); }
.checkout-reminder::backdrop { background:rgba(20,15,34,.62); }
.checkout-reminder h2 { margin-top:10px; font-size:26px; line-height:1.3; }
.checkout-reminder p { margin-top:12px; color:var(--muted); font-size:16px; }
.checkout-reminder-actions { display:flex; justify-content:flex-end; gap:10px; flex-wrap:wrap; margin-top:24px; }

.download-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.download-card { padding:28px; border:1px solid var(--hair); border-radius:16px; background:var(--panel); }
.platform { color:var(--brand); font:16px/1.5 var(--mono); letter-spacing:.1em; }
.download-card h3 { margin-top:14px; font-size:22px; }
.download-card p { min-height:52px; margin:8px 0 20px; color:var(--muted); font-size:16px; }
.download-note { margin-top:16px; color:var(--faint); font-size:16px; }
.faq { overflow:hidden; border:1px solid var(--hair); border-radius:14px; background:var(--panel); }
.faq details { padding:0 24px; border-top:1px solid var(--hair-soft); }
.faq details:first-child { border-top:0; }
.faq summary { padding:20px 28px 20px 0; cursor:pointer; font-weight:650; }
.faq p { max-width:820px; padding:0 0 20px; color:var(--muted); font-size:16px; }
.support-card { display:grid; grid-template-columns:220px 1fr; gap:42px; align-items:center; max-width:820px; padding:36px; border:1px solid var(--hair); border-radius:22px; background:var(--panel); box-shadow:0 30px 80px -50px var(--brand); }
.support-qr { padding:11px; border:1px solid var(--hair-soft); border-radius:18px; background:#fff; }
.support-qr img { width:100%; border-radius:11px; }
.support-info h3 { margin-top:9px; font-size:26px; }
.support-lead { max-width:520px; margin-top:8px; color:var(--muted); font-size:16px; }
.support-list { margin-top:20px; border-top:1px solid var(--hair-soft); }
.support-row { display:grid; grid-template-columns:72px minmax(0,1fr) auto; gap:12px; align-items:center; min-height:48px; border-bottom:1px solid var(--hair-soft); }
.support-label { color:var(--faint); font-size:16px; }
.support-value { overflow-wrap:anywhere; font:650 16px/1.5 var(--mono); }

footer { padding:32px 0 42px; border-top:1px solid var(--hair-soft); }
.footer-inner { display:flex; align-items:center; gap:24px; color:var(--faint); font-size:16px; }
.footer-inner .logo { color:var(--ink); font-size:16px; }
.footer-mark { width:24px; height:24px; font-size:16px; }
.footer-links { display:flex; gap:20px; margin-left:auto; }
.footer-links a:hover { color:var(--brand); }
.lightbox { position:fixed; inset:0; z-index:90; display:none; place-items:center; padding:24px; background:rgba(15,11,24,.88); }
.lightbox.open { display:grid; }
.lightbox img { max-width:min(1280px,96vw); max-height:90vh; border-radius:12px; box-shadow:0 30px 100px rgba(0,0,0,.55); }
.lightbox button { position:fixed; top:20px; right:20px; width:44px; height:44px; border:1px solid rgba(255,255,255,.45); border-radius:50%; background:rgba(0,0,0,.25); color:#fff; cursor:pointer; font-size:24px; }
.reveal { opacity:0; transform:translateY(16px); transition:opacity .55s ease,transform .55s ease; }
.reveal.visible { opacity:1; transform:none; }

@media(max-width:900px) {
  .nav-links { display:none; }
  .workflow { grid-template-columns:1fr; }
  .flow-card { min-height:0; }
  .flow-card h3 { margin-top:24px; }
  .purchase-shell { grid-template-columns:1fr; }
  .price-panel { border-right:0; border-bottom:1px solid var(--hair); }
}
@media(max-width:680px) {
  .wrap { width:min(100% - 36px,var(--max)); }
  .section { padding:74px 0; }
  .compact-section { padding-top:18px; }
  .doc-no { display:none; }
  .nav-cta { padding:8px 13px; font-size:16px; }
  .hero { padding-top:68px; }
  .hero h1 { font-size:clamp(40px,13vw,58px); }
  .hero > .wrap > .eyebrow::before,.hero > .wrap > .eyebrow::after { width:16px; }
  .shot-stage::before { inset:-20px 0; }
  .spec-item { min-width:50%; padding:10px 8px; border-right:0; }
  .shot-caption { display:block; text-align:left; }
  .shot-caption span:last-child { display:none; }
  .feature-row { grid-template-columns:1fr; }
  .feature-key { padding:17px 20px 9px; border-right:0; }
  .feature-value { padding:0 20px 19px; }
  .gallery,.download-grid { grid-template-columns:1fr; }
  .gallery { gap:16px; }
  .price-panel,.purchase-main { padding:30px 22px; }
  .purchase-actions .button { width:100%; }
  .download-card p { min-height:0; }
  .support-card { grid-template-columns:1fr; gap:25px; padding:26px 22px; }
  .support-qr { width:min(220px,100%); margin:0 auto; }
  .support-info { text-align:center; }
  .support-row { grid-template-columns:70px minmax(0,1fr) auto; text-align:left; }
  .delivery-followup { grid-template-columns:1fr; }
  .delivery-followup-actions { justify-content:flex-start; }
  .footer-inner { align-items:flex-start; flex-direction:column; }
  .footer-links { margin-left:0; flex-wrap:wrap; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation:none!important; transition:none!important; }
  .reveal { opacity:1; transform:none; }
}

.sales-source-clear[hidden], .sales-source-feedback[hidden] { display: none; }

/* T-188 用户约束：说明与复制内容同样采用可读字号。 */
small, code, kbd { font-size:inherit; }
.button, .text-link { min-height:44px; white-space:normal; }
.logo, .nav-links a, .nav-cta, .footer-links a {
  display:inline-flex;
  align-items:center;
  min-height:44px;
}
.copy-button, .support-copy { min-height:44px; }
.checkout-price-meta, .checkout-price-amount, .purchase-actions { flex-wrap:wrap; }
.field small, .status, .selected-plan-copy { overflow-wrap:anywhere; }
.step-body { min-width:0; }
@media(max-width:600px){.purchase-actions{align-items:stretch}.purchase-actions>.button,.purchase-actions>.text-link{width:100%}.checkout-price-amount span{width:100%}.step-line{gap:12px}.nav-links{flex-wrap:wrap}}