:root{--paper:#fffcf5;--ink:#102322;--muted:#536563;--brand:#0d8d68;--mint:#f1f7f4;--mint-strong:#e6f2ec;--line:#dce8e2;--deep:#102b2a;--white:#fff;--container:1240px;--shadow:0 24px 64px rgba(16,43,42,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}.page-width{width:min(calc(100% - 48px),var(--container));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(220,232,226,.75);background:rgba(255,252,245,.94);backdrop-filter:blur(14px)}.header-inner{width:min(calc(100% - 48px),var(--container));min-height:76px;margin-inline:auto;display:flex;align-items:center;justify-content:space-between;gap:36px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:24px;font-weight:800;white-space:nowrap}.brand img{border-radius:11px}nav{display:flex;align-items:center;justify-content:center;gap:34px;font-size:15px;font-weight:600}nav a,.text-link{transition:color .18s ease}nav a:hover,nav a:focus-visible,.text-link:hover,.text-link:focus-visible{color:var(--brand)}.header-store img{width:109px;height:40px}
.hero{overflow:hidden}.hero-grid{min-height:760px;display:grid;grid-template-columns:minmax(0,560px) minmax(420px,1fr);align-items:center;gap:64px;padding-block:76px 72px}.hero-copy{position:relative;z-index:2}.eyebrow{margin:0 0 20px;color:var(--brand);font-size:16px;line-height:1.5;font-weight:800;letter-spacing:.02em}h1,h2,h3,p{overflow-wrap:break-word}h1{margin:0;max-width:590px;font-size:clamp(48px,4.15vw,60px);line-height:1.2;letter-spacing:-.035em}.hero-lead{max-width:540px;margin:26px 0 0;color:var(--muted);font-size:19px;line-height:1.75}.hero-actions{display:flex;align-items:center;gap:16px;margin-top:32px}.hero-store img,.closing-store img{width:164px;height:60px}.button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;padding:0 26px;border-radius:10px;font-size:16px;font-weight:700}.button.secondary{border:1.5px solid #164541;background:transparent}.button.secondary:hover,.button.secondary:focus-visible{background:var(--mint-strong)}.proof-list{display:flex;flex-wrap:wrap;gap:10px 26px;margin:28px 0 0;padding:0;color:var(--muted);font-size:14px;list-style:none}.proof-list li{position:relative;padding-left:16px}.proof-list li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--brand)}.hero-stage{position:relative;min-height:612px;display:grid;place-items:center}.hero-halo{position:absolute;width:min(38vw,476px);aspect-ratio:1;border-radius:50%;background:var(--mint-strong)}
.device{margin:0;overflow:hidden;border:6px solid var(--ink);border-radius:36px;background:#f4f6f7;box-shadow:var(--shadow)}.device img{width:100%;height:100%;object-fit:cover}.device-hero{position:relative;width:300px;aspect-ratio:720/1558}.chapter{padding-block:96px}.chapter-mint{background:var(--mint)}.split{min-height:580px;display:grid;grid-template-columns:minmax(0,500px) minmax(520px,1fr);align-items:center;gap:96px}.split-reverse{grid-template-columns:minmax(560px,1fr) minmax(0,500px);gap:86px}.chapter-copy h2,.center-copy h2,.support-zone>.page-width>h2,.closing h2{margin:0;font-size:clamp(42px,3.6vw,52px);line-height:1.24;letter-spacing:-.035em}.chapter-copy>p:not(.eyebrow):not(.detail-line),.center-copy>p:not(.eyebrow){margin:26px 0 0;color:var(--muted);font-size:18px;line-height:1.75}.detail-line{margin:28px 0 0;color:#164541;font-weight:800;font-size:15px}.device-stage{min-height:580px;display:grid;place-items:center;border-radius:32px}.mint-stage{background:#e5f2eb}.light-stage{background:var(--mint)}.device-large{width:270px;aspect-ratio:620/1342}.dual-devices{position:relative;min-height:600px}.device-pair{position:absolute;width:250px;aspect-ratio:620/1342}.device-pair-back{left:7%;top:8%}.device-pair-front{left:47%;top:0}
.voice-preview-card{max-width:520px;margin-top:30px;padding:24px;border:1px solid rgba(22,69,65,.16);border-radius:22px;background:#f0f8f4;box-shadow:0 14px 34px rgba(30,74,67,.08)}.voice-preview-card .preview-kicker{margin:0;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.02em}.voice-preview-card h3{margin:8px 0 0;font-size:25px;line-height:1.35;letter-spacing:-.02em}.voice-preview-card>p:not(.preview-kicker){margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.65}.preview-cta{width:max-content;min-width:178px;margin-top:18px;background:var(--brand);color:#fff}.preview-cta:hover,.preview-cta:focus-visible{background:#08785a}.voice-preview-card .preview-boundary{font-size:12px;line-height:1.6}
.qr-chapter{padding-block:96px 88px;color:#fefbf3;background:var(--deep)}.qr-chapter .eyebrow{color:#4dd3b2}.center-copy{max-width:900px;margin-inline:auto;text-align:center}.center-copy>p:not(.eyebrow){max-width:820px;margin-inline:auto;color:#bdd2cd}.qr-devices{min-height:520px;margin-top:46px;display:flex;align-items:center;justify-content:center;gap:44px}.device-qr{width:224px;border-color:#62dfc2;border-width:4px;border-radius:30px;box-shadow:0 22px 50px rgba(0,0,0,.25)}.device-qr figcaption{padding:14px 10px;color:#cce0db;background:var(--deep);text-align:center;font-size:14px;font-weight:700}.flow-arrow{color:#62dfc2;font-size:34px}.qr-flow{margin:26px 0 0;color:#bce7dc;text-align:center;font-size:15px;font-weight:800}
.support-zone{padding-block:72px;background:var(--mint)}.support-zone>.page-width>h2{font-size:42px}.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:34px}.trust-grid article{min-height:154px;padding:28px;border:1px solid rgba(220,232,226,.9);border-radius:20px;background:var(--white)}.trust-grid h3{margin:0;font-size:23px}.trust-grid p{margin:10px 0 0;color:var(--muted);line-height:1.65}.mini-entry{margin-top:28px;padding:28px 32px;display:grid;grid-template-columns:104px minmax(0,1fr) auto;align-items:center;gap:28px;border-radius:24px;background:#e8f4ee}.mini-entry img{border-radius:24px}.mini-entry .eyebrow{margin-bottom:6px}.mini-entry h2{margin:0;font-size:26px;line-height:1.35}.mini-entry p:not(.eyebrow){margin:8px 0 0;color:var(--muted)}.mini-actions{display:flex;flex-direction:column;align-items:center;gap:12px}.text-link{font-size:14px;font-weight:700}.analytics-note{margin:24px 0 0;color:var(--muted);font-size:13px;line-height:1.7}
.closing{padding-block:54px;color:#fefbf3;background:var(--deep)}.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}.closing h2{font-size:34px}.closing p{margin:10px 0 0;color:#b7cbc6}.site-footer{padding-block:28px;color:#647774;background:#0b1e1d;font-size:13px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-inner div{display:flex;gap:24px}a:focus-visible{outline:3px solid #57d7b7;outline-offset:4px}
@media(max-width:980px){nav{display:none}.hero-grid,.split,.split-reverse{grid-template-columns:1fr}.hero-grid{gap:34px;text-align:center}.hero-copy,.hero-lead{margin-inline:auto}.hero-actions,.proof-list{justify-content:center}.split,.split-reverse{gap:42px}.chapter-copy{text-align:center}.dual-devices{width:min(620px,100%);margin-inline:auto}.mini-entry{grid-template-columns:88px 1fr}.mini-entry img{width:88px;height:88px}.mini-actions{grid-column:1/-1;flex-direction:row;justify-content:center}}
@media(max-width:620px){.page-width,.header-inner{width:calc(100% - 36px)}.site-header{position:static}.header-inner{min-height:68px}.brand{gap:10px;font-size:21px}.brand img{width:40px;height:40px;border-radius:10px}.header-store{display:none}.hero-grid{min-height:auto;padding-block:48px 56px;gap:38px}.hero-copy{text-align:left}.eyebrow{margin-bottom:16px;font-size:14px}h1{font-size:clamp(38px,10.2vw,42px);line-height:1.24}.hero-lead{margin-top:20px;font-size:17px;line-height:1.72}.hero-actions{flex-direction:column;align-items:stretch;margin-top:26px}.hero-store,.hero-store img{width:100%;height:auto}.hero-store{display:flex;justify-content:center;border-radius:10px;background:#000}.hero-store img{max-width:164px}.button{width:100%}.proof-list{justify-content:flex-start;gap:8px 18px;margin-top:22px;font-size:13px}.hero-stage{min-height:540px}.hero-halo{width:330px}.device-hero{width:248px}.chapter{padding-block:64px}.split,.split-reverse{min-height:0;gap:34px}.chapter-copy{text-align:left}.chapter-copy h2,.center-copy h2,.support-zone>.page-width>h2{font-size:34px;line-height:1.3}.chapter-copy>p:not(.eyebrow):not(.detail-line),.center-copy>p:not(.eyebrow){margin-top:18px;font-size:16px;line-height:1.72}.detail-line{margin-top:20px;font-size:13px}.device-stage{min-height:560px}.device-large{width:248px}.dual-devices{min-height:420px}.device-pair{width:46%;border-width:4px;border-radius:24px}.device-pair-back{left:1%;top:8%}.device-pair-front{left:53%}.qr-chapter{padding-block:64px}.center-copy{text-align:left}.qr-devices{min-height:390px;gap:12px;margin-top:34px}.device-qr{width:calc(50% - 18px);border-radius:24px}.device-qr figcaption{font-size:12px}.flow-arrow{display:none}.qr-flow{font-size:13px}.support-zone{padding-block:56px}.trust-grid{grid-template-columns:1fr;gap:12px;margin-top:24px}.trust-grid article{min-height:0;padding:20px}.trust-grid h3{font-size:20px}.mini-entry{grid-template-columns:76px minmax(0,1fr);gap:16px;padding:20px}.mini-entry img{width:76px;height:76px;border-radius:18px}.mini-entry h2{font-size:21px}.mini-actions{align-items:stretch;flex-direction:column}.closing{padding-block:38px}.closing-inner{flex-direction:column;text-align:center}.closing h2{font-size:28px;line-height:1.35}.footer-inner{flex-direction:column;text-align:center}.footer-inner div{flex-wrap:wrap;justify-content:center}}
@media(max-width:620px){.voice-preview-card{margin-top:24px;padding:20px;border-radius:20px}.voice-preview-card h3{font-size:22px}.voice-preview-card>p:not(.preview-kicker){font-size:14px}.preview-cta{width:100%;min-width:0;margin-top:16px}.voice-preview-card .preview-boundary{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* 2026-08-18 browser review: preserve screenshot legibility and reading order. */
.device{border-width:4px;border-radius:32px;box-shadow:0 20px 52px rgba(16,43,42,.13)}
.device-large{width:286px}
.device-hero{width:322px}
.device-qr{width:248px;border-width:3px}
.qr-devices{min-height:570px}
.hero-actions .hero-store img,.closing .closing-store img{width:164px;height:60px}

@media(min-width:981px){
  .split-reverse{grid-template-columns:minmax(520px,1fr) minmax(0,540px);gap:72px}
  .split-reverse .chapter-copy h2{font-size:48px}
}

@media(max-width:620px){
  .hero-actions{align-items:flex-start;gap:14px}
  .hero-store,.hero-store img{width:164px;height:60px}
  .hero-store{background:transparent;border-radius:0}
  .hero-stage{min-height:auto;padding-top:4px}
  .hero-halo{width:300px}
  .device-hero{width:238px}

  .split-reverse .chapter-copy{order:-1}
  .device-stage{min-height:auto;padding:30px 18px}
  .device-large{width:238px}

  .dual-devices{position:relative;min-height:570px;display:block}
  .device-pair{position:absolute;width:auto;border-width:3px;border-radius:28px}
  .device-pair-back{left:0;top:64px;width:66%}
  .device-pair-front{left:auto;right:0;top:0;width:54%}

  .qr-devices{min-height:auto;flex-direction:column;gap:18px;margin-top:32px}
  .device-qr{width:236px;border-radius:28px}
  .device-qr figcaption{padding:13px 10px;font-size:13px}
  .flow-arrow{display:block;font-size:28px;line-height:1;transform:rotate(90deg)}
  .qr-flow{max-width:280px;margin-inline:auto;line-height:1.7}
}