:root{color-scheme:light;--bg: oklch(.983 .004 95);--bg-strong: oklch(.962 .006 95);--surface: rgba(255, 255, 255, .8);--surface-strong: rgba(255, 255, 255, .94);--surface-emphasis: rgba(255, 255, 255, .98);--border: rgba(17, 17, 19, .09);--border-strong: rgba(17, 17, 19, .18);--text: oklch(.17 .01 260);--text-soft: oklch(.46 .01 260);--accent: oklch(.17 .01 260);--shadow: 0 20px 60px rgba(17, 17, 19, .08);--hero-shadow: 0 32px 90px rgba(17, 17, 19, .12);--header-shadow: 0 12px 40px rgba(17, 17, 19, .05);--bg-radial: rgba(17, 17, 19, .04);--bg-linear: rgba(17, 17, 19, .03);--nav-active-bg: rgba(17, 17, 19, .08);--kicker-line: rgba(17, 17, 19, .25);--hero-stage-top: rgba(255, 255, 255, .84);--hero-stage-bottom: rgba(255, 255, 255, .62);--hero-stage-border: rgba(17, 17, 19, .08);--island-mark-radial: rgba(17, 17, 19, .09);--island-mark-linear: rgba(17, 17, 19, .06);--island-shell-top: rgba(17, 17, 19, 1);--island-shell-bottom: rgba(25, 25, 28, .98);--island-shell-highlight: rgba(255, 255, 255, .08);--island-shell-shadow-soft: rgba(17, 17, 19, .22);--island-shell-shadow-inline: rgba(17, 17, 19, .14);--digit-stroke: rgba(255, 255, 255, .95);--feature-index: rgba(17, 17, 19, .38);--chip-bg: rgba(17, 17, 19, .05);--chip-border: rgba(17, 17, 19, .08);--meta-bg: rgba(17, 17, 19, .05);--card-hover-bg: rgba(255, 255, 255, .98);--divider: rgba(17, 17, 19, .08);--footer-divider: rgba(17, 17, 19, .1);--toggle-bg: rgba(17, 17, 19, .04);--toggle-bg-hover: rgba(17, 17, 19, .08);--toggle-icon: oklch(.38 .01 260);--radius-xl: 2rem;--radius-lg: 1.5rem;--radius-md: 1rem;--content-width: min(1120px, calc(100vw - 2rem) );--copy-width: min(760px, 100%);--font-display: "SF Pro Rounded", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-body: "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif}:root.dark{color-scheme:dark;--bg: oklch(.18 .01 260);--bg-strong: oklch(.225 .012 260);--surface: rgba(20, 22, 27, .78);--surface-strong: rgba(23, 25, 31, .92);--surface-emphasis: rgba(30, 32, 38, .98);--border: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .18);--text: oklch(.94 .008 260);--text-soft: oklch(.74 .01 260);--accent: oklch(.94 .008 260);--shadow: 0 20px 60px rgba(0, 0, 0, .34);--hero-shadow: 0 32px 90px rgba(0, 0, 0, .42);--header-shadow: 0 12px 40px rgba(0, 0, 0, .24);--bg-radial: rgba(255, 255, 255, .05);--bg-linear: rgba(255, 255, 255, .03);--nav-active-bg: rgba(255, 255, 255, .08);--kicker-line: rgba(255, 255, 255, .22);--hero-stage-top: rgba(33, 35, 41, .9);--hero-stage-bottom: rgba(22, 24, 29, .86);--hero-stage-border: rgba(255, 255, 255, .08);--island-mark-radial: rgba(255, 255, 255, .08);--island-mark-linear: rgba(255, 255, 255, .05);--island-shell-top: rgba(8, 8, 10, 1);--island-shell-bottom: rgba(18, 19, 24, .98);--island-shell-highlight: rgba(255, 255, 255, .06);--island-shell-shadow-soft: rgba(0, 0, 0, .4);--island-shell-shadow-inline: rgba(0, 0, 0, .24);--digit-stroke: rgba(255, 255, 255, .92);--feature-index: rgba(255, 255, 255, .34);--chip-bg: rgba(255, 255, 255, .06);--chip-border: rgba(255, 255, 255, .08);--meta-bg: rgba(255, 255, 255, .06);--card-hover-bg: rgba(35, 37, 43, .98);--divider: rgba(255, 255, 255, .08);--footer-divider: rgba(255, 255, 255, .1);--toggle-bg: rgba(255, 255, 255, .05);--toggle-bg-hover: rgba(255, 255, 255, .1);--toggle-icon: oklch(.92 .008 260)}*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;min-width:320px;background:radial-gradient(circle at top left,var(--bg-radial),transparent 28rem),linear-gradient(180deg,var(--bg-linear),transparent 20rem),var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.65;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.site-shell{width:var(--content-width);margin:0 auto;padding:1rem 0 2rem}.site-header,.site-footer,.hero,.feature-grid,.summary-panel,.document-hero,.document-sheet{container-type:inline-size}.site-header{position:sticky;top:.75rem;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:clamp(2rem,4vw,3rem);padding:.9rem 1rem;background:color-mix(in srgb,var(--surface-strong) 88%,transparent);border:1px solid var(--border);border-radius:999px;backdrop-filter:blur(18px);box-shadow:var(--header-shadow)}.brand{display:inline-flex;align-items:center;gap:.75rem;min-width:0}.brand-visual{display:inline-flex;align-items:center;justify-content:center;width:3.15rem;height:1.26rem;flex:0 0 auto}.brand-copy{display:grid;gap:.08rem;min-width:0}.brand-copy strong{font-family:var(--font-display);font-size:.98rem;line-height:1.1}.brand-copy small{color:var(--text-soft);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase}.site-nav{display:inline-flex;align-items:center;gap:.4rem;flex-wrap:wrap;justify-content:flex-end}.site-nav-group{display:inline-flex;align-items:center;gap:.65rem;flex-wrap:wrap;justify-content:flex-end}.nav-link{padding:.55rem .85rem;border-radius:999px;color:var(--text-soft);transition:background-color .18s ease,color .18s ease,transform .18s ease}.nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{background:var(--nav-active-bg);color:var(--text);outline:none}.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(18rem,.85fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:center;padding:clamp(1rem,2vw,1.5rem) 0 clamp(2.5rem,6vw,5rem)}.hero-copy,.summary-copy{max-width:36rem}.hero-kicker,.document-kicker{display:inline-flex;align-items:center;gap:.55rem;color:var(--text-soft);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase}.hero-kicker:before,.document-kicker:before{content:"";width:2.4rem;height:1px;background:var(--kicker-line)}h1,h2{margin:0;font-family:var(--font-display);letter-spacing:-.03em;line-height:1.02}.hero h1{margin-top:1rem;font-size:clamp(2.15rem,5vw,4.35rem);max-width:11.5ch}.hero p,.summary-copy p,.document-hero p,.document-section p,.document-section li,.feature-tile p{color:var(--text-soft);font-size:clamp(1rem,1.5vw,1.08rem)}.hero p{max-width:34rem;margin:1.35rem 0 0}.hero-art{display:grid;place-items:center}.hero-stage{width:min(100%,24rem);border-radius:2.25rem;background:linear-gradient(180deg,var(--hero-stage-top),var(--hero-stage-bottom)),var(--bg-strong);border:1px solid 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none}.island-shell{width:var(--island-shell-width, min(17.5rem, 82%));aspect-ratio:2.5 / 1;border-radius:999px;background:linear-gradient(180deg,var(--island-shell-top),var(--island-shell-bottom));position:relative;box-shadow:var( --island-shell-shadow, inset 0 1px 0 var(--island-shell-highlight), 0 28px 70px var(--island-shell-shadow-soft) )}.digits{position:absolute;right:14%;top:50%;display:flex;gap:var(--digits-gap, .65rem);transform:translateY(-50%)}.digits span{width:var(--digit-width, clamp(1.45rem, 3.8vw, 2.2rem));height:var(--digit-height, clamp(2.35rem, 6vw, 3.3rem));border-radius:999px;border:var(--digit-border-width, .28rem) solid var(--digit-stroke);animation:var(--digit-animation, pulse-ring 4.6s ease-in-out infinite)}.digits span:last-child{animation-delay:.24s}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-bottom:1rem}.feature-tile,.summary-panel,.document-sheet{background:color-mix(in srgb,var(--surface-strong) 90%,transparent);border:1px solid var(--border);box-shadow:var(--shadow)}.feature-tile{border-radius:var(--radius-lg);padding:1.15rem;min-height:14rem;display:flex;flex-direction:column;justify-content:space-between}.feature-index{color:var(--feature-index);font-size:.82rem;letter-spacing:.16em}.feature-tile h2,.summary-copy h2,.document-hero h1{margin-top:.3rem;font-size:clamp(1.45rem,3vw,2.6rem)}.summary-panel{margin-top:1.5rem;border-radius:calc(var(--radius-xl) + .5rem);padding:clamp(1.2rem,3vw,2rem);display:grid;grid-template-columns:minmax(0,1.15fr) minmax(16rem,.85fr);gap:1.25rem 2rem;align-items:start}.summary-list{display:flex;flex-wrap:wrap;gap:.75rem;align-content:start}.summary-chip{padding:.72rem .95rem;border-radius:999px;background:var(--chip-bg);border:1px solid var(--chip-border);font-size:.95rem}.legal-panel{margin-top:1.5rem;padding:clamp(1.1rem,3vw,1.8rem) 0 0}.legal-copy{max-width:34rem}.legal-copy h2{margin-top:.8rem;font-size:clamp(1.4rem,3vw,2.3rem)}.legal-copy 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0}.document-meta{display:inline-flex;flex-wrap:wrap;gap:.65rem;align-items:center;margin-top:1.15rem;padding:.6rem .9rem;border-radius:999px;background:var(--meta-bg);color:var(--text-soft)}.document-meta strong{color:var(--text);font-weight:600}.document-sheet{max-width:var(--copy-width);border-radius:calc(var(--radius-xl) + .25rem);padding:clamp(1.2rem,3vw,2rem)}.document-section+.document-section{margin-top:1.8rem;padding-top:1.8rem;border-top:1px solid var(--divider)}.document-section h2{font-size:clamp(1.15rem,2.1vw,1.55rem);margin-bottom:.95rem}.document-section p{margin:.75rem 0 0}.document-section ul{margin:.85rem 0 0;padding-left:1.15rem;color:var(--text-soft)}.document-section li+li{margin-top:.45rem}.site-footer{display:flex;justify-content:space-between;gap:1rem;margin-top:clamp(3rem,5vw,4.5rem);padding:1rem 0 .25rem;border-top:1px solid var(--footer-divider);color:var(--text-soft)}.footer-title{margin:0 0 .25rem;color:var(--text);font-size:.94rem}.footer-copy{margin:.45rem 0 0;color:var(--text-soft);font-size:.86rem}.footer-company{margin:.45rem 0 0;color:var(--text-soft);font-size:.86rem;line-height:1.7}.footer-company a{color:var(--text);text-decoration:underline;text-underline-offset:.18rem}.footer-company--en{margin-top:.12rem;font-size:.8rem}.footer-links{display:inline-flex;flex-wrap:wrap;gap:1rem}.theme-toggle{position:relative;display:inline-flex;align-items:center;justify-content:center;width:2.8rem;height:2.8rem;flex:0 0 auto;border:1px solid var(--border);border-radius:999px;background:var(--toggle-bg);color:var(--toggle-icon);cursor:pointer;transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease}.theme-toggle:hover,.theme-toggle:focus-visible{transform:translateY(-1px);background:var(--toggle-bg-hover);border-color:var(--border-strong);outline:none}.theme-toggle__icon{position:absolute;display:inline-flex;align-items:center;justify-content:center;width:1rem;height:1rem;transition:opacity .18s ease,transform .18s ease}.theme-toggle__icon svg{width:100%;height:100%}.theme-toggle__icon--sun{opacity:1;transform:scale(1) rotate(0)}.theme-toggle__icon--moon{opacity:0;transform:scale(.72) rotate(-18deg)}:root.dark .theme-toggle__icon--sun{opacity:0;transform:scale(.72) rotate(18deg)}:root.dark .theme-toggle__icon--moon{opacity:1;transform:scale(1) rotate(0)}@container (max-width: 880px){.hero,.summary-panel,.feature-grid,.legal-links-grid{grid-template-columns:1fr}.hero h1{max-width:13ch}}@media(max-width:860px){.site-header,.site-footer{border-radius:1.5rem}.site-header,.site-footer{flex-direction:column;align-items:stretch}.site-nav-group,.site-nav,.footer-links{justify-content:flex-start}}@media(max-width:640px){html{font-size:15px}.site-shell{width:min(100vw - 1rem,100%)}.site-header{top:.5rem;margin-bottom:1.75rem;padding:.85rem}.brand{align-items:flex-start}.brand-copy small{line-height:1.3}.hero-stage,.document-sheet,.summary-panel,.feature-tile,.legal-card{border-radius:1.45rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@keyframes pulse-ring{0%,to{transform:translateY(0);opacity:.92}50%{transform:translateY(-1px);opacity:1}}