:root{--warm-white:#fffcf7;--cream:#fff7ed;--tomato:#ff4d3d;--tomato-deep:#d93727;--tomato-soft:#ffe5df;--mint:#bdefd9;--jade:#25b985;--jade-ink:#177353;--sky:#e7f1ff;--blue:#3478f6;--lemon:#fff1b8;--ink:#18202a;--muted:#5d6679;--line:#e8e3da;--white:#fff;--wrap:1180px;--sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--warm-white);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}img{max-width:100%;display:block}a{color:inherit}.wrap{width:min(var(--wrap),calc(100% - 48px));margin:0 auto}.skip-link{position:absolute;left:16px;top:-60px;z-index:100;padding:10px 16px;border-radius:999px;background:var(--ink);color:#fff}.skip-link:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,252,247,.88);border-bottom:1px solid rgba(232,227,218,.8);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img,.footer-brand img{border-radius:12px}.brand-text{display:flex;flex-direction:column;line-height:1.1}.brand-text strong{font-size:20px}.brand-text small{margin-top:4px;color:var(--muted);font-size:9px;font-weight:700;letter-spacing:.14em}.site-nav{display:flex;align-items:center;gap:28px}.site-nav a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:600}.site-nav a:hover{color:var(--tomato-deep)}.nav-cta{padding:10px 17px;border-radius:999px;background:var(--tomato-soft);color:var(--tomato-deep)!important}.nav-toggle{display:none;border:1px solid var(--line);border-radius:999px;background:var(--white);padding:9px 15px;color:var(--ink);font:inherit}
.hero{position:relative;padding:88px 0 82px;overflow:hidden}.hero:before{content:"";position:absolute;width:520px;height:520px;left:-260px;top:-160px;border-radius:50%;background:var(--tomato-soft);opacity:.6}.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,.9fr) minmax(470px,1.1fr);align-items:center;gap:52px}.eyebrow{display:flex;align-items:center;gap:9px;margin:0 0 16px;color:var(--tomato-deep);font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.eyebrow span{width:8px;height:8px;border-radius:50%;background:var(--tomato)}h1,h2,h3,p{margin-top:0}h1{margin-bottom:24px;font-size:clamp(3.3rem,6.8vw,6rem);line-height:.98;letter-spacing:-.06em}h1 em,h2 em{color:var(--tomato-deep);font-style:normal}.lede{max-width:620px;margin-bottom:0;color:var(--muted);font-size:18px;line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{min-height:52px;padding:0 22px;border-radius:18px;display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;font-weight:700;transition:transform .2s ease,box-shadow .2s ease}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--tomato-deep);color:#fff;box-shadow:0 12px 28px rgba(217,55,39,.2)}.button-quiet{background:var(--white);border:1px solid var(--line);color:var(--ink)}.trust-list{display:flex;flex-wrap:wrap;gap:10px 24px;margin:26px 0 0;padding:0;list-style:none;color:var(--muted);font-size:13px}.trust-list li:before{content:"✓";margin-right:7px;color:var(--jade-ink);font-weight:800}
.hero-visual{position:relative;min-height:540px;display:flex;align-items:center;justify-content:center;border-radius:48px;background:linear-gradient(145deg,var(--tomato-soft),var(--cream) 42%,var(--mint));overflow:hidden;border:1px solid var(--line)}.hero-art{position:relative;z-index:2;width:112%;max-width:none;filter:drop-shadow(0 24px 30px rgba(24,32,42,.12))}.visual-orbit{position:absolute;border:1px solid rgba(24,32,42,.1);border-radius:50%}.orbit-one{width:390px;height:390px}.orbit-two{width:520px;height:520px}.floating-card{position:absolute;z-index:3;border:1px solid rgba(232,227,218,.9);background:rgba(255,255,255,.86);box-shadow:0 16px 40px rgba(24,32,42,.1);backdrop-filter:blur(12px);border-radius:16px;padding:11px 14px;font-size:13px}.floating-top{top:30px;right:30px}.floating-bottom{bottom:28px;left:28px;display:flex;flex-direction:column}.floating-bottom small{color:var(--muted);margin-top:2px}.status-dot{display:inline-block;width:8px;height:8px;margin-right:7px;border-radius:50%;background:var(--jade)}
.proof-strip{border-block:1px solid var(--line);background:var(--white)}.proof-grid{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:24px;padding-block:27px}.proof-grid p{margin:0;display:flex;flex-direction:column}.proof-grid strong{font-size:15px}.proof-grid span{color:var(--muted);font-size:12px}.proof-grid i{color:var(--tomato);font-style:normal}
.section{padding:112px 0}.section-heading{max-width:780px;margin-bottom:54px}.section-heading.compact{max-width:680px}.section-heading h2,.demo-copy h2,.privacy-copy h2,.download-card h2{margin-bottom:20px;font-size:clamp(2.35rem,4.7vw,4.5rem);line-height:1.05;letter-spacing:-.055em}.section-heading>p:last-child,.demo-copy>p,.privacy-copy>p{max-width:640px;color:var(--muted);font-size:17px;line-height:1.8}.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.principle-card{position:relative;min-height:360px;padding:30px;border:1px solid var(--line);border-radius:28px;overflow:hidden}.tone-red{background:var(--tomato-soft)}.tone-blue{background:var(--sky)}.tone-green{background:var(--mint)}.card-number{font-size:12px;font-weight:800;letter-spacing:.1em}.card-icon{display:grid;place-items:center;width:82px;height:82px;margin:46px 0 36px;border-radius:26px;background:rgba(255,255,255,.7);font-size:36px;font-weight:500}.principle-card h3{margin-bottom:12px;font-size:24px}.principle-card p{margin:0;color:var(--muted)}
.demo-section{background:var(--cream);border-block:1px solid var(--line)}.demo-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.75fr);align-items:center;gap:90px}.demo-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:34px 0 22px}.demo-tab{min-height:48px;padding:0 14px;border:1px solid var(--line);border-radius:14px;background:var(--white);color:var(--muted);font:inherit;font-size:14px;font-weight:700;text-align:left;cursor:pointer}.demo-tab.active{border-color:var(--tomato);background:var(--tomato-soft);color:var(--tomato-deep)}.demo-explanation{min-height:116px;padding:20px;border-left:4px solid var(--tomato);border-radius:0 18px 18px 0;background:var(--white)}.demo-explanation strong{font-size:18px}.demo-explanation p{margin:6px 0 0;color:var(--muted)}
.phone-stage{position:relative;display:flex;justify-content:center;padding:30px}.phone{position:relative;z-index:2;width:340px;padding:10px;border-radius:46px;background:var(--ink);box-shadow:0 30px 70px rgba(24,32,42,.22);transform:rotate(2deg)}.phone-top{height:34px;padding:8px 18px 0;display:flex;justify-content:space-between;align-items:flex-start;color:#fff;font-size:10px}.phone-top i{width:90px;height:23px;margin-top:-4px;border-radius:99px;background:#050608}.phone-body{min-height:620px;padding:20px 20px 24px;border-radius:35px;background:var(--warm-white)}.app-brand{margin-bottom:35px;color:var(--tomato);font-size:13px;font-weight:800}.app-kicker{margin-bottom:8px;color:var(--muted);font-size:12px}.phone-body h3{margin-bottom:22px;font-size:27px;line-height:1.15}.app-card{min-height:250px;padding:22px;border:1px solid var(--line);border-radius:26px;transition:background .25s ease}.app-card-red{background:var(--tomato-soft)}.app-card-blue{background:var(--sky)}.app-card-lemon{background:var(--lemon)}.app-card-green{background:var(--mint)}.app-card small{display:block;margin-bottom:8px;color:var(--tomato-deep);font-size:11px;font-weight:800}.app-card strong{display:block;font-size:20px;line-height:1.3}.app-card ul{margin:18px 0 0;padding:0;list-style:none;color:var(--muted);font-size:13px}.app-card li{padding:7px 0;border-top:1px solid rgba(24,32,42,.08)}.audio-rail{height:64px;display:flex;align-items:center;justify-content:center;gap:5px}.audio-rail i{width:7px;border-radius:99px;background:var(--jade);animation:pulse 1.2s ease-in-out infinite alternate}.audio-rail i:nth-child(1),.audio-rail i:nth-child(11){height:14px}.audio-rail i:nth-child(2),.audio-rail i:nth-child(10){height:24px}.audio-rail i:nth-child(3),.audio-rail i:nth-child(9){height:36px}.audio-rail i:nth-child(4),.audio-rail i:nth-child(8){height:22px}.audio-rail i:nth-child(5),.audio-rail i:nth-child(7){height:44px}.audio-rail i:nth-child(6){height:30px}.audio-rail i:nth-child(2n){animation-delay:.25s}.app-button{width:100%;min-height:54px;border:0;border-radius:17px;background:var(--tomato-deep);color:#fff;font:inherit;font-weight:700}.phone-shadow{position:absolute;bottom:16px;width:330px;height:70px;border-radius:50%;background:rgba(24,32,42,.18);filter:blur(25px)}@keyframes pulse{to{transform:scaleY(.65)}}
.scenarios-section{overflow:hidden}.scenario-track{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.scenario-card{min-height:330px;padding:30px;border:1px solid var(--line);border-radius:28px}.scenario-lemon{background:var(--lemon)}.scenario-sky{background:var(--sky)}.scenario-mint{background:var(--mint)}.scenario-card small{color:var(--muted);font-weight:700}.scenario-card h3{margin:70px 0 14px;font-size:26px;line-height:1.25}.scenario-card p{color:var(--muted)}.scenario-card>span{display:inline-block;margin-top:18px;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.65);font-size:12px;font-weight:700}
.privacy-section{background:var(--ink);color:#fff}.privacy-layout{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:80px}.privacy-copy .eyebrow{color:var(--mint)}.privacy-copy .eyebrow span{background:var(--mint)}.privacy-copy>p{color:#c7ccd3}.text-link{display:inline-flex;gap:10px;color:inherit;font-weight:700;text-underline-offset:5px}.privacy-board{padding:16px;border:1px solid rgba(255,255,255,.12);border-radius:30px;background:rgba(255,255,255,.05)}.privacy-item{display:flex;align-items:center;gap:18px;padding:22px;border-radius:20px}.privacy-item+.privacy-item{border-top:1px solid rgba(255,255,255,.1)}.privacy-item>span{display:grid;place-items:center;width:52px;height:52px;border-radius:17px;background:var(--mint);color:var(--jade-ink);font-size:24px}.privacy-item div{display:flex;flex-direction:column}.privacy-item strong{font-size:18px}.privacy-item small{margin-top:4px;color:#aeb6c0}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}.faq-list details{border-top:1px solid var(--line);padding:24px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;justify-content:space-between;gap:18px;cursor:pointer;font-size:18px;font-weight:750;list-style:none}.faq-list summary:after{content:"＋";color:var(--tomato)}.faq-list details[open] summary:after{content:"－"}.faq-list details p{max-width:680px;margin:14px 0 0;color:var(--muted)}
.download-section{padding:0 0 112px}.download-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:34px;padding:44px;border:1px solid var(--line);border-radius:34px;background:linear-gradient(110deg,var(--tomato-soft),var(--cream) 45%,var(--mint))}.download-card>img{border-radius:26px;box-shadow:0 16px 36px rgba(24,32,42,.12)}.download-card h2{margin-bottom:10px}.download-card p{margin-bottom:0;color:var(--muted)}.coming-badge{padding:12px 18px;border-radius:999px;background:var(--white);font-size:14px;font-weight:800}
.site-footer{padding:54px 0 24px;border-top:1px solid var(--line);background:var(--white)}.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:32px}.footer-brand{display:flex;align-items:center;gap:14px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:20px}.footer-brand small{color:var(--muted)}.footer-links{display:flex;gap:24px}.footer-links a,.footer-bottom a{color:var(--muted);font-size:14px}.footer-bottom{display:flex;justify-content:space-between;gap:24px;margin-top:38px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.footer-bottom p{margin:0}
.brand-mark{width:40px;height:40px;color:var(--tomato-deep);flex:0 0 auto}.legal-footer .footer-grid{align-items:flex-start}.legal-footer .footer-brand{min-width:220px;flex-direction:column;align-items:flex-start;gap:14px}.legal-footer .footer-brand .brand{align-items:center}.footer-col{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.footer-col h3{margin:0 0 4px;font-size:14px}.footer-col a,.footer-col p,.footer-brand>p{margin:0;color:var(--muted);font-size:13px}.footer-filing{max-width:240px}.legal-back{margin-top:48px!important}.legal-back a{color:var(--tomato-deep);font-weight:700}.site-nav.is-open{display:flex}
.legal{min-height:70vh}.legal-hero{padding:80px 0 48px;background:var(--tomato-soft);border-bottom:1px solid var(--line)}.legal-hero h1{font-size:clamp(2.8rem,6vw,5rem)}.legal-meta{color:var(--muted)}.legal-wrap{max-width:820px;padding:64px 0 100px}.legal-wrap h2{margin:52px 0 14px;font-size:28px}.legal-wrap h3{margin:32px 0 10px;font-size:19px}.legal-wrap p,.legal-wrap li{color:var(--muted)}.legal-note{padding:20px;border-radius:18px;background:var(--lemon);color:var(--ink)!important}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.reveal.is-visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.audio-rail i{animation:none}}
@media(max-width:900px){.site-nav{position:absolute;left:24px;right:24px;top:68px;padding:18px;display:none;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:20px;background:var(--white);box-shadow:0 18px 48px rgba(24,32,42,.12)}.site-nav.open{display:flex}.nav-toggle{display:block}.hero{padding-top:58px}.hero-grid,.demo-layout,.privacy-layout,.faq-layout{grid-template-columns:1fr}.hero-visual{min-height:420px}.proof-grid{grid-template-columns:1fr 1fr}.proof-grid i{display:none}.principle-grid,.scenario-track{grid-template-columns:1fr}.principle-card{min-height:280px}.demo-layout{gap:54px}.phone{width:min(340px,100%)}.privacy-layout,.faq-layout{gap:50px}.download-card{grid-template-columns:auto 1fr}.coming-badge{grid-column:1/-1;justify-self:start}.footer-grid,.footer-bottom{align-items:flex-start;flex-direction:column}}
@media(max-width:600px){.wrap{width:min(100% - 32px,var(--wrap))}.header-inner{min-height:66px}.brand-text small{display:none}.hero{padding:42px 0 58px}h1{font-size:3.35rem}.hero-grid{gap:36px}.hero-visual{min-height:330px;border-radius:30px}.hero-art{width:125%}.floating-top{top:14px;right:14px}.floating-bottom{bottom:14px;left:14px}.proof-grid{gap:20px;padding-block:22px}.section{padding:78px 0}.section-heading{margin-bottom:36px}.principle-card,.scenario-card{padding:24px;border-radius:24px}.card-icon{margin:32px 0}.demo-tabs{grid-template-columns:1fr}.phone-stage{padding-inline:0}.phone-body{min-height:590px}.privacy-board{padding:8px}.download-section{padding-bottom:78px}.download-card{grid-template-columns:1fr;padding:28px}.download-card>img{width:82px}.footer-links{flex-wrap:wrap}.legal-hero{padding-top:54px}.legal-wrap{padding-top:42px}}