:root{color-scheme:light;--paper:#fff8f2;--mist:#f8e7e1;--ink:#3a2230;--muted:#6c5360;--wine:#9d4b68;--wine-dark:#863c56;--border:#dabfc0;--gold:#7d4021;--serif:"Songti SC","STSong","Noto Serif CJK SC","SimSun",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--paper);scroll-behavior:smooth;scroll-padding-top:6rem}
body{margin:0;overflow-x:clip;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure,dl,dd{margin:0}
a{color:inherit;text-underline-offset:.25em}
img{display:block;max-width:100%;height:auto}
a:focus-visible{outline:3px solid var(--wine);outline-offset:5px;border-radius:5px}
.shell{width:min(1040px,calc(100% - 48px));margin-inline:auto}
.skip-link{position:fixed;top:12px;left:12px;z-index:100;background:var(--paper);padding:12px 18px;transform:translateY(-180%)}
.skip-link:focus{transform:translateY(0)}

.draft-banner{background:var(--ink);color:#fff;font-size:12px;line-height:1.6;text-align:center;padding:8px 16px}
.fill{display:inline-block;border:1px dashed var(--wine);border-radius:6px;padding:0 .4em;background:#fffdf9;color:var(--wine);font-family:var(--sans);font-style:normal;font-weight:500;line-height:1.6;overflow-wrap:anywhere}
.fill::before{content:"〔"}.fill::after{content:"〕"}

.site-header{position:sticky;z-index:20;top:0;border-bottom:1px solid #dabfc066;background:#fff8f2f2;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.nav-shell{width:min(1120px,calc(100% - 48px));margin:auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;font-size:18px;font-weight:600}
.nav-links{display:flex;gap:28px}
.nav-links a{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:500}
.nav-links a:hover,.text-link:hover{color:var(--wine)}

.eyebrow{font-size:12px;letter-spacing:.2em;color:var(--gold);font-weight:600;margin-bottom:16px}
.hero{position:relative;text-align:center;padding-block:96px 88px;isolation:isolate}
.hero::before{content:"";position:absolute;z-index:-1;inset:-72px -24px 0;border-radius:0 0 50% 50%;background:radial-gradient(ellipse at 50% 40%,#eecbc480,transparent 62%)}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(38px,5vw,60px);line-height:1.3;letter-spacing:.02em}
.hero h1 em{font-style:normal;color:var(--wine)}
.hero-description{margin-top:24px;color:var(--muted);font-size:17px;line-height:1.9}
.hero-actions{margin-top:32px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:52px;padding:13px 26px;border-radius:100px;background:var(--wine);color:#fff;text-decoration:none;font-size:15px;font-weight:600;box-shadow:0 8px 24px #9d4b6818;transition:background-color .18s}
.button:hover{background:var(--wine-dark)}

.product{padding-block:24px 80px}
.product-card{display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:48px;padding:48px 56px;background:#fffdf9;border:1px solid #dabfc080;border-radius:26px}
.product-copy h2{font-family:var(--serif);font-size:clamp(32px,3.4vw,44px);font-weight:500;letter-spacing:.12em}
.product-line{color:var(--gold);font-size:14px;font-weight:600;margin:8px 0 20px}
.product-copy>p:not(.eyebrow):not(.product-line):not(.status){color:var(--muted);font-size:15px;line-height:2}
.status{display:inline-flex;align-items:center;gap:8px;margin-top:24px;padding:6px 12px;border:1px solid var(--border);border-radius:99px;color:var(--muted);font-size:12px;line-height:1.5}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--wine)}
.text-link{display:flex;align-items:center;width:fit-content;min-height:44px;margin-top:16px;font-size:14px;font-weight:600;color:var(--wine)}
.product-shot{max-width:240px;justify-self:center}
.phone-frame{background:#30202a;border:7px solid #30202a;border-radius:34px;overflow:hidden;box-shadow:0 18px 38px #765d691a}
.phone-frame img{width:100%;aspect-ratio:402/874;object-fit:cover}
.product-shot figcaption{margin-top:14px;text-align:center;font-size:12px;color:var(--muted)}

.principles,.about,.contact{padding-block:72px;border-top:1px solid #dabfc066}
.section-heading{text-align:center;max-width:680px;margin:0 auto 40px}
.section-heading h2{font-family:var(--serif);font-size:clamp(28px,3vw,40px);font-weight:500;line-height:1.4}.principle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.principle-grid article{padding:28px;border:1px solid #dabfc080;border-radius:24px;background:#fffdf9;min-width:0}
.principle-grid h3{font-family:var(--serif);font-size:21px;font-weight:500;margin-bottom:12px}
.principle-grid p{color:var(--muted);font-size:14px;line-height:1.9;overflow-wrap:anywhere}
.about-body{max-width:640px;margin:auto;text-align:center;display:grid;gap:14px;font-size:16px;line-height:2}
.contact-list{max-width:560px;margin:auto;border-top:1px solid var(--border)}
.contact-list div{display:grid;grid-template-columns:80px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--border)}
.contact-list dt{color:var(--muted);font-size:14px}
.contact-list dd{font-size:15px;min-width:0}

.site-footer{border-top:1px solid #dabfc080;padding-block:28px calc(28px + env(safe-area-inset-bottom));color:var(--muted);font-size:12px;line-height:1.9}
.footer-links{display:flex;flex-wrap:wrap;gap:4px 24px;margin-bottom:12px}
.footer-links a{display:flex;align-items:center;min-height:44px;text-decoration:none}
.footer-links a:hover{color:var(--wine)}
.filing{display:flex;flex-wrap:wrap;align-items:center;gap:0 12px}
.filing a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none}
.filing-note{font-size:11px;margin-top:4px}

@media(max-width:820px){.product-card{grid-template-columns:1fr;gap:32px;padding:36px 28px}.product-shot{max-width:220px}.principle-grid{grid-template-columns:1fr;gap:14px}}
@media(max-width:640px){
  .shell,.nav-shell{width:calc(100% - 40px)}
  .nav-shell{min-height:64px}
  .nav-links{gap:14px}
  .nav-links a{font-size:13px}
  .hero{padding-block:56px 56px}
  .hero h1{font-size:clamp(32px,9vw,40px)}
  .hero-description{font-size:15px}
  .product{padding-bottom:56px}
  .product-card{padding:28px 20px;border-radius:22px}
  .principles,.about,.contact{padding-block:56px}
  .principle-grid article{padding:22px}
  .contact-list div{grid-template-columns:1fr;gap:4px}
}
@media(max-width:380px){.nav-links a:first-child{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}
@media(forced-colors:active){.button,.product-card,.principle-grid article,.fill{border:1px solid CanvasText}.button{background:ButtonFace;color:ButtonText}}