:root{color-scheme:light;--brand-cream:#fffbf7;--brand-pink-soft:#ffe6ec;--brand-pink:#ffc7d4;--brand-orange:#f7a94a;--brand-green:#79c96b;--brand-stone:#bdb0a6;--brand-brown:#6b5448;--ink:var(--brand-brown);--ink-strong:color-mix(in srgb, var(--brand-brown) 86%, black);--muted:var(--brand-stone);--line:var(--brand-pink-soft);--surface:#fffbf7c7;--surface-solid:var(--brand-cream);--cream:var(--brand-cream);--pink:var(--brand-pink);--pink-deep:color-mix(in srgb, var(--brand-pink) 76%, var(--brand-brown));--pink-soft:var(--brand-pink-soft);--green:var(--brand-green);--orange:var(--brand-orange);--violet:var(--brand-stone);--shadow:0 22px 70px color-mix(in srgb, var(--brand-brown) 18%, transparent);--font-sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-sans-zh:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--font-sans-ja:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;font-family:var(--font-sans);background:var(--cream);color:var(--ink)}:root[data-locale=zh],:root:lang(zh){font-family:var(--font-sans-zh)}:root[data-locale=ja],:root:lang(ja){font-family:var(--font-sans-ja)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 18% 8%, color-mix(in srgb, var(--brand-pink) 28%, transparent), transparent 28rem), radial-gradient(circle at 78% 16%, color-mix(in srgb, var(--brand-orange) 18%, transparent), transparent 26rem), linear-gradient(180deg, var(--brand-cream) 0%, #fff 58%, var(--brand-cream) 100%);min-width:320px;margin:0}body:before{content:"";pointer-events:none;border:1px solid var(--line);z-index:10;border-radius:22px;position:fixed;inset:0}a{color:inherit;text-decoration:none}button,input{font:inherit}img,svg{display:block}.page-shell{width:min(1200px,100% - 56px);margin:0 auto;padding:30px 0}.topbar{justify-content:space-between;align-items:center;gap:24px;min-height:48px;display:flex}.brand{letter-spacing:0;color:var(--ink);align-items:center;gap:10px;font-size:1.72rem;font-weight:800;display:inline-flex}.brand img{object-fit:contain;width:36px;height:36px}.nav-links{color:var(--ink);justify-content:flex-end;align-items:center;gap:18px;font-family:inherit;font-size:.94rem;display:flex}.nav-links a{white-space:nowrap}.github-link{color:var(--ink);align-items:center;gap:8px;font-weight:700;display:inline-flex}.lang-switcher{flex:none;position:relative}.lang-switcher>summary{list-style:none}.lang-switcher>summary::-webkit-details-marker{display:none}.lang-switcher-button{width:24px;height:24px;box-shadow:none;color:var(--ink);cursor:pointer;background:0 0;border:0;place-items:center;padding:0;transition:transform .16s,opacity .16s;display:grid}.lang-switcher-button:hover{opacity:.84;transform:translateY(-1px)}.lang-switcher-button:focus-visible{outline:2px solid var(--brand-orange);outline-offset:3px}.lang-switcher-icon svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:24px;height:24px}.lang-switcher-menu{z-index:20;border:1px solid var(--line);background:color-mix(in srgb, var(--brand-cream) 88%, white);min-width:148px;box-shadow:0 18px 42px color-mix(in srgb, var(--brand-brown) 14%, transparent);opacity:0;pointer-events:none;border-radius:14px;gap:6px;padding:8px;transition:opacity .14s,transform .14s;display:grid;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-6px)}.lang-switcher[open] .lang-switcher-menu{opacity:1;pointer-events:auto;transform:translateY(0)}.lang-switcher-option{width:100%;color:var(--ink);cursor:pointer;text-align:left;white-space:nowrap;background:0 0;border:0;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:9px 10px;font-size:.9rem;font-weight:800;display:flex}.lang-switcher-option:hover,.lang-switcher-option[aria-pressed=true]{background:var(--brand-pink-soft)}.lang-switcher-option:after{content:"";background:0 0;border-radius:999px;flex:none;width:8px;height:8px}.lang-switcher-option[aria-pressed=true]:after{background:currentColor}.github-icon{width:24px;height:24px;mask-image:var(--icon-github);mask-position:50%;mask-size:contain;mask-repeat:no-repeat;-webkit-mask-image:var(--icon-github);background:currentColor;flex:none;display:block;-webkit-mask-position:50%;-webkit-mask-size:contain;-webkit-mask-repeat:no-repeat}.feature-icon svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.hero{grid-template-columns:minmax(320px,.82fr) minmax(520px,1.18fr);align-items:center;gap:62px;padding:78px 22px 64px;display:grid}.hero-copy h1{letter-spacing:0;width:fit-content;max-width:100%;color:var(--ink);margin:0 0 28px;font-size:clamp(2.85rem,5vw,4.35rem);font-weight:900;line-height:1.22;position:relative}.hero-copy h1 span{display:block}em{color:var(--pink);font-style:normal}.hero-copy h1:after{content:"✦";color:var(--brand-orange);font-size:1.35rem;position:absolute;bottom:.42em;right:-34px}:root[data-locale=ja] .hero-copy h1{font-size:clamp(2.55rem,4.5vw,3.8rem);line-height:1.26}.hero-lede{max-width:510px;color:var(--ink);margin:0 0 34px;font-family:inherit;font-size:1rem;line-height:1.9}.download-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 14px;max-width:410px;display:grid}.download-button{border:1px solid var(--line);background-color:color-mix(in srgb, var(--brand-cream) 82%, white);min-height:78px;color:var(--ink);box-shadow:0 14px 35px color-mix(in srgb, var(--brand-brown) 8%, transparent);cursor:pointer;background-image:none;border-radius:15px;align-items:center;gap:12px;padding:14px 18px;font-family:inherit;text-decoration:none;transition:background .16s,border-color .16s,transform .16s,box-shadow .16s;display:flex}.download-button:hover,.download-button:focus-visible{background-color:var(--brand-pink-soft);background-image:linear-gradient(180deg, var(--brand-pink), var(--brand-pink-soft));box-shadow:0 18px 36px color-mix(in srgb, var(--brand-pink) 48%, transparent);border-color:#0000;transform:translateY(-2px)}.download-button:focus-visible{outline:2px solid var(--brand-orange);outline-offset:4px}.download-button strong{font-size:1rem;font-weight:800;display:block}.platform-icon{background:currentColor;flex:none;width:34px;height:34px;display:block;mask-position:50%;mask-size:contain;mask-repeat:no-repeat}.platform-icon-windows{mask-image:var(--icon-windows);-webkit-mask-image:var(--icon-windows)}.platform-icon-linux{mask-image:var(--icon-linux);-webkit-mask-image:var(--icon-linux)}.platform-icon-apple{mask-image:var(--icon-apple);-webkit-mask-image:var(--icon-apple)}.support-note{color:var(--muted);align-items:center;gap:8px;margin:34px 0 0;font-family:inherit;font-size:.86rem;display:flex}.app-preview{min-width:0}.app-preview img{max-width:100%;height:auto;display:block}.features{padding:6px 0 30px}.features h2{color:var(--ink);letter-spacing:0;text-align:center;justify-content:center;align-items:center;gap:18px;margin:0 0 28px;font-size:clamp(1.82rem,3.5vw,2.42rem);line-height:1.2;display:flex}.features h2 span{color:var(--brand-pink);font-size:1.35rem}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 26px;display:grid}.feature-card{border:1px solid var(--line);background:color-mix(in srgb, var(--brand-cream) 68%, white);min-height:218px;box-shadow:0 18px 48px color-mix(in srgb, var(--brand-brown) 7%, transparent);border-radius:22px;grid-template-columns:76px minmax(0,1fr) 176px;align-items:center;padding:26px;display:grid;position:relative;overflow:hidden}.feature-card-wide{grid-column:1/-1;grid-template-columns:minmax(76px,.22fr) minmax(0,1fr) 220px;min-height:136px}.feature-icon{width:66px;height:66px;box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--brand-brown) 8%, transparent);color:var(--brand-cream);border-radius:50%;place-items:center;display:grid}.feature-icon-pink{background:color-mix(in srgb, var(--brand-pink) 76%, var(--brand-brown))}.feature-icon-stone{background:var(--brand-stone)}.feature-icon-orange{background:var(--brand-orange)}.feature-icon-green{background:var(--brand-green)}.feature-icon-brown{background:var(--brand-brown);box-shadow:none}.feature-icon svg{width:32px;height:32px}.asset-icon{background:currentColor;width:32px;height:32px;display:block;mask-position:50%;mask-size:contain;mask-repeat:no-repeat}.asset-icon-protocol{mask-image:var(--icon-protocol);-webkit-mask-image:var(--icon-protocol)}.asset-icon-cloud-download{mask-image:var(--icon-cloud-download);-webkit-mask-image:var(--icon-cloud-download)}.feature-copy{min-width:0;padding:0 18px}.feature-copy h3{color:var(--ink);letter-spacing:0;margin:0 0 14px;font-size:1.32rem;line-height:1.2}:root[data-locale=ja] .feature-copy h3{font-size:1.2rem}.feature-copy p{max-width:300px;color:var(--ink);margin:0;font-family:inherit;font-size:.96rem;line-height:1.8}:root[data-locale=ja] .feature-copy p{font-size:.9rem;line-height:1.7}.feature-card>img{object-fit:contain;justify-self:center;width:160px;height:160px}.feature-card-wide>img{width:150px;height:130px}.flower{background:radial-gradient(circle at 50% 20%, var(--brand-pink) 0 4px, transparent 4.5px), radial-gradient(circle at 80% 50%, var(--brand-pink) 0 4px, transparent 4.5px), radial-gradient(circle at 50% 80%, var(--brand-pink) 0 4px, transparent 4.5px), radial-gradient(circle at 20% 50%, var(--brand-pink) 0 4px, transparent 4.5px), radial-gradient(circle at 50% 50%, var(--brand-orange) 0 4px, transparent 4.5px);opacity:.8;width:30px;height:30px;position:absolute;bottom:22px}.flower:after{content:"";background:var(--brand-green);border-radius:999px;width:3px;height:26px;position:absolute;top:20px;left:12px}.flower-left{left:22px;transform:scale(.55)rotate(-12deg)}.flower-right{right:38px;transform:scale(.5)rotate(13deg)}.closing{border:1px solid var(--line);background:color-mix(in srgb, var(--brand-cream) 70%, white);text-align:center;box-shadow:0 18px 48px color-mix(in srgb, var(--brand-brown) 7%, transparent);border-radius:25px;grid-template-columns:230px minmax(0,1fr) 230px;align-items:center;gap:18px;margin:26px 0 0;padding:28px 34px;display:grid}.closing img{object-fit:contain;width:210px;height:210px}.closing h2{color:var(--ink);letter-spacing:0;margin:0 0 20px;font-size:clamp(1.72rem,3.4vw,2.45rem);font-weight:800;line-height:1.65}.closing p{color:var(--ink);margin:0;font-size:1.14rem;line-height:1.8}.closing span{color:var(--pink);font-weight:800}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=1080px){.page-shell{width:min(100% - 34px,980px)}.nav-links{gap:16px}.hero{padding-inline:0;grid-template-columns:1fr;gap:42px;padding-top:54px}.hero-copy{max-width:650px}.feature-card{grid-template-columns:70px minmax(0,1fr) 140px;padding:22px}.feature-card>img{width:132px;height:132px}}@media (width<=820px){body:before{border-radius:16px}.topbar{flex-wrap:wrap;align-items:flex-start}.nav-links{gap:12px;margin-left:auto}.hero{padding-top:38px}.download-actions{grid-template-columns:1fr;max-width:430px}.feature-grid{grid-template-columns:1fr}.feature-card,.feature-card-wide{grid-column:auto;grid-template-columns:62px minmax(0,1fr) 112px;min-height:178px;padding:20px 16px}.feature-icon{width:56px;height:56px}.feature-icon svg{width:27px;height:27px}.feature-copy{padding:0 10px}.feature-copy h3{font-size:1.12rem}.feature-copy p{font-size:.86rem}.feature-card>img,.feature-card-wide>img{width:106px;height:106px}.closing{grid-template-columns:1fr;padding:24px 18px}.closing img{justify-self:center;width:150px;height:150px}}@media (width<=540px){.page-shell{width:min(100% - 24px,480px);padding-top:20px}.brand{font-size:1.4rem}.nav-links{gap:10px}.lang-switcher-button{width:24px;height:24px}.hero-copy h1{font-size:clamp(2.45rem,13vw,3.4rem)}.hero-copy h1:after{right:-22px}:root[data-locale=ja] .hero-copy h1{font-size:clamp(2.2rem,10vw,2.95rem)}.features h2{gap:9px;font-size:1.58rem}.feature-card,.feature-card-wide{grid-template-columns:54px minmax(0,1fr)}.feature-card>img,.feature-card-wide>img{opacity:.42;width:84px;height:84px;position:absolute;bottom:4px;right:6px}.feature-copy p{padding-right:14px}}