:root{color-scheme:light;--bg:#fff;--surface:#fff;--surface-soft:#f8fafc;--surface-blue:#eff6ff;--text:#18181b;--text-2:#52525b;--text-3:#71717a;--border:#e4e4e7;--border-blue:#dbeafe;--primary:#2563eb;--primary-hover:#1d4ed8;--green:#16a34a;--header:rgba(255,255,255,.94);--shadow:0 12px 34px -27px rgba(30,64,175,.55);--content:1024px;--header-width:1152px}
:root[data-theme=dark]{color-scheme:dark;--bg:#000;--surface:#0a0a0c;--surface-soft:#161619;--surface-blue:#0d1524;--text:#f4f4f5;--text-2:#a1a1aa;--text-3:#71717a;--border:#26262c;--border-blue:#25324a;--primary:#3b82f6;--primary-hover:#60a5fa;--green:#4ade80;--header:rgba(0,0,0,.9);--shadow:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px}body{min-width:320px;margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none;-webkit-font-smoothing:antialiased;line-height:1.6}button,a{font:inherit;-webkit-tap-highlight-color:transparent}a{color:inherit}svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}
.brand{touch-action:manipulation;-webkit-user-select:none;user-select:none}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--border);background:var(--header);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.header-inner{display:flex;width:min(var(--header-width),calc(100% - 32px));height:64px;align-items:center;margin:auto;gap:24px}.brand{font-size:19px;font-weight:700;letter-spacing:-.03em;text-decoration:none}.desktop-nav{display:flex;align-items:center;gap:28px;margin-left:auto}.desktop-nav a{color:var(--text-2);font-size:14px;font-weight:550;text-decoration:none;transition:color .18s}.desktop-nav a:hover{color:var(--primary)}.header-actions{display:flex;align-items:center;gap:8px}.icon-button{display:grid;width:40px;height:40px;place-items:center;padding:0;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text-2);cursor:pointer;transition:background .18s,border-color .18s,color .18s,transform .18s}.icon-button:hover{border-color:var(--border-blue);background:var(--surface-blue);color:var(--primary)}.icon-button:active{transform:scale(.96)}.icon-swap{position:relative;display:block;width:19px;height:19px}.icon-swap svg{position:absolute;inset:0;width:19px;height:19px;transition:opacity .18s,transform .18s}.theme-sun{opacity:0;transform:rotate(-35deg) scale(.65)}:root[data-theme=dark] .theme-moon{opacity:0;transform:rotate(35deg) scale(.65)}:root[data-theme=dark] .theme-sun{opacity:1;transform:none}.menu-toggle,.mobile-nav{display:none}
.page-shell{width:min(var(--content),calc(100% - 32px));margin:auto;padding:48px 0 0}.page-stack{display:grid;gap:72px}.hero-card{padding-top:22px}.eyebrow,.section-label{display:flex;align-items:center;gap:9px;color:var(--primary);font-size:13px;font-weight:650;letter-spacing:.025em}.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--primary)}.hero-card h1{max-width:900px;margin:18px 0 0;font-size:clamp(42px,6vw,62px);font-weight:650;letter-spacing:-.055em;line-height:1.13}.hero-intro{max-width:750px;margin:23px 0 0;color:var(--text-2);font-size:16px;line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:29px}.button{display:inline-flex;min-width:0;min-height:44px;align-items:center;justify-content:center;gap:8px;padding:0 17px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:650;text-decoration:none;transition:background .18s,border-color .18s,color .18s,transform .18s}.button:hover{transform:translateY(-1px)}.button:active{transform:translateY(1px)}.button svg,.card-link svg,.notice-link svg,.mobile-nav svg{width:16px;height:16px}.button.primary{background:var(--primary);color:#fff}.button.primary:hover{background:var(--primary-hover)}.button.secondary{border-color:var(--border);background:var(--surface);color:var(--text)}.button.secondary:hover,.button.ghost:hover{border-color:var(--border-blue);background:var(--surface-blue);color:var(--primary)}.button.ghost{border-color:transparent;color:var(--text-2)}
.privacy-notice{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;margin-top:42px;padding:16px 18px;border:1px solid var(--border-blue);border-radius:16px;background:var(--surface-blue);text-decoration:none;transition:transform .18s,border-color .18s}.privacy-notice:hover{transform:translateY(-2px);border-color:#93c5fd}.notice-icon,.project-icon,.feature-icon{display:grid;flex:0 0 auto;place-items:center;border:1px solid var(--border-blue);background:var(--surface);color:var(--primary)}.notice-icon{width:42px;height:42px;border-radius:13px}.notice-icon svg,.project-icon svg,.feature-icon svg{width:21px;height:21px}.privacy-notice strong,.privacy-notice small{display:block}.privacy-notice strong{font-size:14px}.privacy-notice small{margin-top:2px;color:var(--text-2);font-size:12px}.notice-link{display:flex;align-items:center;gap:4px;color:var(--primary);font-size:13px;font-weight:650}.summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.summary-grid article{padding:17px 18px;border:1px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:var(--shadow)}.summary-grid strong,.summary-grid span{display:block}.summary-grid strong{font-size:15px}.summary-grid span{margin-top:3px;color:var(--text-3);font-size:12px}
.content-section{scroll-margin-top:80px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:20px}.section-heading span,.project-kicker{color:var(--primary);font-size:11px;font-weight:750;letter-spacing:.15em}.section-heading h2{margin:4px 0 0;font-size:26px;letter-spacing:-.035em}.section-heading>p{max-width:420px;margin:0;color:var(--text-3);font-size:13px;text-align:right}.project-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.project-card{display:flex;min-height:410px;flex-direction:column;padding:24px;border:1px solid var(--border-blue);border-radius:16px;background:var(--surface);box-shadow:var(--shadow);transition:transform .18s,border-color .18s}.project-card:hover{transform:translateY(-2px);border-color:#93c5fd}.project-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px}.project-icon{width:48px;height:48px;border-radius:15px;background:var(--surface-blue)}.status-chip{display:flex;align-items:center;gap:6px;padding:5px 9px;border:1px solid color-mix(in srgb,var(--green) 24%,transparent);border-radius:999px;background:color-mix(in srgb,var(--green) 9%,transparent);color:var(--green);font-size:11px;font-weight:650}.status-chip i{width:6px;height:6px;border-radius:50%;background:currentColor}.project-kicker{margin:0}.project-card h3{margin:5px 0 8px;font-size:24px;letter-spacing:-.03em}.project-card>p:not(.project-kicker){margin:0;color:var(--text-2);font-size:14px;line-height:1.8}.project-points{display:grid;gap:8px;margin:21px 0 24px}.project-points span{position:relative;padding-left:15px;color:var(--text-2);font-size:13px}.project-points span::before{position:absolute;top:.72em;left:1px;width:5px;height:5px;border-radius:50%;background:var(--primary);content:""}.card-link{display:flex;align-items:center;gap:6px;width:max-content;margin-top:auto;color:var(--primary);font-size:13px;font-weight:650;text-decoration:none}.card-link:hover{color:var(--primary-hover)}.principle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.principle-grid article{padding:21px;border:1px solid var(--border-blue);border-radius:16px;background:var(--surface);box-shadow:var(--shadow)}.feature-icon{width:42px;height:42px;border-radius:13px;background:var(--surface-blue)}.principle-grid h3{margin:17px 0 6px;font-size:16px}.principle-grid p{margin:0;color:var(--text-2);font-size:13px;line-height:1.75}.about-panel{display:grid;grid-template-columns:minmax(220px,.75fr) minmax(0,1.25fr);gap:42px;padding:28px;border:1px solid var(--border-blue);border-radius:16px;background:var(--surface-blue)}.about-panel h2{max-width:310px;margin:5px 0 0;font-size:25px;letter-spacing:-.035em;line-height:1.4}.about-panel p{margin:0;color:var(--text-2);font-size:14px;line-height:1.85}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.tag-list span{padding:5px 9px;border:1px solid var(--border-blue);border-radius:8px;background:var(--surface);color:var(--text-2);font-size:12px}
.site-footer{margin-top:72px;border-top:1px solid var(--border)}.footer-inner{display:grid;grid-template-columns:1fr auto auto;width:min(var(--header-width),calc(100% - 32px));min-height:108px;align-items:center;gap:32px;margin:auto}.footer-inner strong,.footer-inner span{display:block}.footer-inner strong{font-size:15px}.footer-inner div span{margin-top:2px;color:var(--text-3);font-size:11px}.footer-inner nav{display:flex;gap:20px}.footer-inner a{color:var(--text-2);font-size:12px;text-decoration:none}.footer-inner a:hover{color:var(--primary)}.footer-inner small{color:var(--text-3);font-size:11px}
.legal-shell{width:min(820px,calc(100% - 32px));min-height:calc(100vh - 173px);margin:auto;padding:48px 0 0}.legal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:22px;margin-bottom:20px}.legal-header h1{margin:5px 0 0;font-size:32px;letter-spacing:-.04em}.back-link{display:flex;align-items:center;gap:6px;color:var(--primary);font-size:13px;font-weight:650;text-decoration:none}.legal-card{padding:28px;border:1px solid var(--border-blue);border-radius:16px;background:var(--surface);box-shadow:var(--shadow)}.legal-meta{margin:0 0 26px;color:var(--text-3);font-size:12px}.legal-card h2{margin:28px 0 8px;padding-top:24px;border-top:1px solid var(--border);font-size:18px}.legal-card h2:first-of-type{margin-top:0;padding-top:0;border-top:0}.legal-card p{margin:0;color:var(--text-2);font-size:14px;line-height:1.9}.legal-footer{margin-top:48px}
.motion-ready .motion-item{opacity:0;transform:translateY(12px)}.motion-ready .motion-item.is-visible{opacity:1;transform:none;transition:opacity .35s cubic-bezier(.22,1,.36,1),transform .35s cubic-bezier(.22,1,.36,1)}
html.theme-reveal-active::view-transition-old(root),html.theme-reveal-active::view-transition-new(root){animation:none;mix-blend-mode:normal}html.theme-reveal-active::view-transition-old(root){z-index:1}html.theme-reveal-active::view-transition-new(root){z-index:9999}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#000;--surface:#0a0a0c;--surface-soft:#161619;--surface-blue:#0d1524;--text:#f4f4f5;--text-2:#a1a1aa;--text-3:#71717a;--border:#26262c;--border-blue:#25324a;--primary:#3b82f6;--primary-hover:#60a5fa;--green:#4ade80;--header:rgba(0,0,0,.9);--shadow:none}:root:not([data-theme=light]) .theme-moon{opacity:0;transform:rotate(35deg) scale(.65)}:root:not([data-theme=light]) .theme-sun{opacity:1;transform:none}}
@media(max-width:760px){html{scroll-padding-top:61px}.header-inner{height:60px}.desktop-nav{display:none}.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.menu-toggle span{width:17px;height:1.5px;border-radius:2px;background:currentColor;transition:transform .18s,opacity .18s}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}.mobile-nav{display:grid;position:absolute;top:60px;left:0;width:100%;max-height:0;gap:6px;overflow:hidden;padding:0 16px;border-bottom:0 solid var(--border);background:var(--header);opacity:0;transform:translateY(-2px);transition:max-height .2s,opacity .15s,transform .15s,padding .2s,border-width .2s;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.mobile-nav.open{max-height:210px;padding:10px 16px 14px;border-bottom-width:1px;opacity:1;transform:none}.mobile-nav a{display:flex;min-height:42px;align-items:center;justify-content:space-between;padding:0 13px;border-radius:10px;color:var(--text-2);font-size:14px;font-weight:600;text-decoration:none}.mobile-nav a:hover{background:var(--surface-soft);color:var(--primary)}.page-shell{padding-top:28px}.page-stack{gap:56px}.hero-card{min-width:0;padding-top:8px}.hero-card h1{margin-top:15px;font-size:34px;line-height:1.18;overflow-wrap:anywhere}.hero-card h1 br{display:none}.hero-intro{margin-top:18px;font-size:15px;line-height:1.78}.hero-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:24px}.hero-actions .primary{grid-column:1/-1}.button{width:100%;padding:0 10px;white-space:nowrap}.privacy-notice{grid-template-columns:auto minmax(0,1fr);margin-top:32px;padding:14px}.notice-link{display:none}.privacy-notice small{line-height:1.5}.summary-grid{grid-template-columns:1fr}.summary-grid article{padding:15px 16px}.section-heading{align-items:flex-start;flex-direction:column;gap:5px}.section-heading h2{font-size:23px}.section-heading>p{text-align:left}.project-grid,.principle-grid{grid-template-columns:1fr}.project-card{min-height:auto;padding:21px}.project-card:hover,.privacy-notice:hover{transform:none}.project-card h3{font-size:22px}.about-panel{grid-template-columns:1fr;gap:19px;padding:21px}.about-panel h2{font-size:23px}.footer-inner{grid-template-columns:1fr;gap:16px;padding:25px 0}.footer-inner nav{flex-wrap:wrap;gap:14px 20px}.site-footer{margin-top:56px}.legal-shell{padding-top:28px}.legal-header{align-items:flex-start;flex-direction:column-reverse}.legal-header h1{font-size:28px}.legal-card{padding:21px}.legal-card h2{font-size:17px}}
@media(max-width:390px){.hero-card h1{font-size:31px}.hero-actions{grid-template-columns:1fr}.hero-actions .primary{grid-column:auto}.privacy-notice{gap:11px}.notice-icon{width:38px;height:38px}.project-card{padding:19px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}.motion-ready .motion-item{opacity:1;transform:none}}