:root{--bg: #0d0f0c;--surface: #151714;--surface-2: #1c1f1a;--line: rgba(255, 255, 255, .1);--text: #f3f4ef;--muted: #a4a89e;--faint: #73776d;--accent: #aee010;--accent-text: #aee010;--accent-ink: #141a02;--hover: rgba(255, 255, 255, .06);--shadow: rgba(0, 0, 0, .5);--map-bg: #0a0b09;--map-grid: rgba(255, 255, 255, .07);--route-base: rgba(255, 255, 255, .28);--route-done: #ffffff;--radius: 28px;--wrap: 1120px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans", "Apple SD Gothic Neo", "Noto Sans CJK SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;color-scheme:dark}:root[data-theme=light]{--bg: #f5f6f1;--surface: #ffffff;--surface-2: #ffffff;--line: rgba(13, 15, 12, .12);--text: #12140f;--muted: #565b4f;--faint: #7b8073;--accent-text: #4a6600;--hover: rgba(13, 15, 12, .05);--shadow: rgba(13, 15, 12, .16);--map-bg: #eceee7;--map-grid: rgba(13, 15, 12, .09);--route-base: rgba(13, 15, 12, .22);--route-done: #12140f;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}img,svg{display:block;max-width:100%}img{height:auto}a{color:inherit}h1,h2,h3,p,ul,dl,dd,figure{margin:0}ul{padding:0;list-style:none}h1,h2,h3{font-weight:600;line-height:1.08;letter-spacing:-.035em;text-wrap:balance}:lang(zh) :is(h1,h2,h3),:lang(ja) :is(h1,h2,h3),:lang(ko) :is(h1,h2,h3){letter-spacing:-.01em;line-height:1.2}:lang(zh) h1,:lang(ja) h1,:lang(ko) h1{font-size:clamp(2.2rem,5vw,4rem);word-break:keep-all}p,li{text-wrap:pretty}:lang(ko) body{word-break:keep-all;overflow-wrap:anywhere}h1{font-size:clamp(2.6rem,6.4vw,4.9rem)}h1 span{display:block}h2{font-size:clamp(1.9rem,4vw,3.1rem)}h2:before{content:"";display:block;width:28px;height:3px;margin-bottom:22px;border-radius:2px;background:var(--accent)}h3{font-size:1.3rem;letter-spacing:-.02em}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}.wrap{width:min(var(--wrap),100% - 40px);margin-inline:auto}.skip{position:absolute;left:16px;top:-60px;z-index:100;padding:10px 14px;border-radius:10px;background:var(--accent);color:var(--accent-ink);text-decoration:none}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 78%,transparent);-webkit-backdrop-filter:saturate(160%) blur(18px);backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid var(--line)}.header-row{display:flex;align-items:center;gap:24px;height:56px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none}.brand img{border-radius:7px}.wordmark{font-size:1.12rem;font-weight:600;letter-spacing:-.03em}.wordmark b{font-weight:inherit;color:var(--accent-text)}.anchors{display:flex;gap:22px;margin-inline:auto;font-size:.86rem}.anchors a{color:var(--muted);text-decoration:none;white-space:nowrap;transition:color .15s}.anchors a:hover{color:var(--text)}.header-side{display:flex;align-items:center;gap:14px}.lang{position:relative;font-size:.86rem}.lang summary{list-style:none;cursor:pointer;padding:6px 2px;color:var(--muted);white-space:nowrap}.lang summary::-webkit-details-marker{display:none}.lang summary:after{content:"";display:inline-block;width:6px;height:6px;margin-left:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-3px) rotate(45deg)}.lang summary:hover,.lang[open] summary{color:var(--text)}.lang ul{position:absolute;right:0;top:calc(100% + 8px);min-width:132px;padding:6px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2);box-shadow:0 18px 40px var(--shadow)}.lang a{display:block;padding:8px 12px;border-radius:9px;text-decoration:none;color:var(--muted)}.lang a:hover{background:var(--hover);color:var(--text)}.lang a[aria-current]{color:var(--accent-text)}.theme-toggle{display:grid;place-items:center;width:32px;height:32px;padding:0;border:0;border-radius:50%;background:none;color:var(--muted);cursor:pointer}.theme-toggle:hover{background:var(--hover);color:var(--text)}.theme-toggle svg{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.icon-moon,.shot-light{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 26px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-weight:600;font-size:1rem;line-height:1.2;text-decoration:none;white-space:nowrap;transition:transform .15s,filter .15s}.btn:hover{filter:brightness(1.08)}.btn:active{transform:scale(.98)}.btn-small{padding:7px 15px;font-size:.84rem}.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center;padding-top:clamp(48px,8vw,96px)}.lede{max-width:33em;margin-top:26px;font-size:clamp(1.06rem,1.5vw,1.24rem);color:var(--muted)}.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;margin-top:36px}.cta-note{font-size:.9rem;color:var(--faint)}.hero-shot{justify-self:end;width:min(460px,100%);aspect-ratio:1000 / 1380;overflow:hidden;-webkit-mask-image:linear-gradient(#000 78%,transparent);mask-image:linear-gradient(#000 78%,transparent)}.hero-shot img{width:100%;height:100%;object-fit:cover;object-position:top}.statement{padding-block:clamp(72px,11vw,136px)}.statement>*{max-width:820px}.body-lg{margin-top:24px;font-size:clamp(1.1rem,1.9vw,1.42rem);line-height:1.55;color:var(--muted)}.inline-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}.inline-points li{padding:8px 15px;border:1px solid var(--line);border-radius:999px;font-size:.9rem;color:var(--muted)}.feature,.replay{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,6vw,88px);align-items:center;padding-block:clamp(40px,6vw,72px)}.feature.flip .feature-shot{order:2}.feature-shot{aspect-ratio:4 / 5;overflow:hidden;border-radius:var(--radius);background:var(--surface)}.feature-shot img,.card-shot img{width:100%;height:100%;object-fit:cover;object-position:top}.feature-copy>p,.replay-copy>p{margin-top:22px;color:var(--muted)}.points{margin-top:26px;border-top:1px solid var(--line)}.points li{position:relative;padding:14px 0 14px 22px;border-bottom:1px solid var(--line);font-size:.97rem;color:var(--text)}.points li:before{content:"";position:absolute;left:2px;top:1.62em;width:7px;height:7px;border-radius:50%;background:var(--accent)}.demo{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.demo-map{border-radius:16px;background:var(--map-bg);overflow:hidden}.demo-map svg{width:100%;height:auto}.route-base,.route-done{fill:none;stroke-width:5;stroke-linecap:round;stroke-linejoin:round}.route-base{stroke:var(--route-base)}.route-done{stroke:var(--route-done);stroke-dasharray:1}.map-grid{fill:none;stroke:var(--map-grid);stroke-width:1}.route-start{fill:var(--accent)}.dot{fill:var(--accent);stroke:var(--map-bg);stroke-width:2}.dot-halo{fill:color-mix(in srgb,var(--accent) 24%,transparent)}.demo-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:18px 4px 10px}.demo-stats dt{font-size:.78rem;color:var(--faint)}.demo-stats dd{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:600;letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--accent-text)}.demo-stats small{margin-left:4px;font-size:.8rem;font-weight:500;letter-spacing:0;color:var(--muted)}.demo-profile{position:relative;height:120px;border-radius:12px;overflow:hidden;touch-action:pan-y}.demo-profile:focus-within{outline:2px solid var(--accent);outline-offset:3px}.demo-profile svg{width:100%;height:100%}.profile-area{fill:color-mix(in srgb,var(--text) 9%,transparent)}.profile-line{fill:none;stroke:var(--text);stroke-width:1.5}.profile-cursor{stroke:var(--accent-text);stroke-width:2}.peak{position:absolute;top:4px;transform:translate(-50%);padding:2px 8px;border-radius:999px;font-size:.72rem;white-space:nowrap;color:var(--muted);background:color-mix(in srgb,var(--text) 8%,transparent);transition:background .15s,color .15s}.peak.on{background:var(--accent);color:var(--accent-ink)}.demo-profile input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}.demo figcaption{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 16px;padding:14px 4px 2px;font-size:.8rem;color:var(--faint)}.demo figcaption span:first-child{color:var(--muted)}.more{padding-block:clamp(64px,9vw,112px)}.more-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:44px}.card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.card-shot{aspect-ratio:5 / 4;overflow:hidden}.card-copy{padding:26px 28px 30px}.card-copy p{margin-top:10px;font-size:.97rem;color:var(--muted)}.pro{display:inline-block;margin-left:8px;padding:2px 7px;border:1px solid color-mix(in srgb,var(--accent-text) 55%,transparent);border-radius:6px;font-size:.68rem;font-weight:600;letter-spacing:.02em;vertical-align:.22em;color:var(--accent-text)}.privacy{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,6vw,88px);align-items:start;padding-block:clamp(48px,7vw,88px);border-top:1px solid var(--line)}.privacy .points{margin-top:0}.faq{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,6vw,88px);padding-block:clamp(48px,7vw,88px);border-top:1px solid var(--line)}.faq-list{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line)}.faq summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;font-size:1.06rem;font-weight:600;cursor:pointer;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"";flex:none;width:9px;height:9px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:translateY(-3px) rotate(45deg);transition:transform .2s}.faq details[open] summary:after{transform:translateY(2px) rotate(225deg)}.faq details p{padding:0 28px 22px 0;color:var(--muted)}.faq details a{color:var(--accent-text);text-underline-offset:3px}.closing{display:flex;flex-direction:column;align-items:center;gap:30px;padding-block:clamp(80px,12vw,150px);text-align:center;border-top:1px solid var(--line)}.closing img{border-radius:17px}.closing h2{max-width:16em}.closing h2:before{display:none}.site-footer{border-top:1px solid var(--line);font-size:.84rem;color:var(--faint)}.footer-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 32px;padding-block:28px}.footer-langs,.footer-links{display:flex;flex-wrap:wrap;gap:18px}.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover,.site-footer a[aria-current]{color:var(--text)}@media(max-width:900px){.anchors{display:none}.header-side{margin-left:auto}.hero,.feature,.replay,.privacy,.faq{grid-template-columns:minmax(0,1fr)}.hero-shot{justify-self:center}.feature.flip .feature-shot{order:0}.feature-shot{aspect-ratio:1 / 1}}@media(max-width:640px){body{font-size:16px}.wrap{width:calc(100% - 32px)}.more-grid{grid-template-columns:minmax(0,1fr)}.header-side{gap:10px}.cta-row .btn{width:100%}.footer-row{flex-direction:column;align-items:flex-start}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}.notfound{padding-block:64px}.notfound section{margin-top:40px}.notfound h2{font-size:1.5rem}.notfound p{margin-top:10px;color:var(--muted)}.notfound a:not(.brand){color:var(--accent-text)}:root[data-theme=light] .hero-shot{border-radius:var(--radius);-webkit-mask-image:none;mask-image:none}:root[data-theme=light] .shot-dark,:root[data-theme=light] .icon-sun{display:none}:root[data-theme=light] .shot-light,:root[data-theme=light] .icon-moon{display:block}