:root{--bg:#15110F;--bg2:#1d1815;--card:#221c18;--line:#3a312b;--text:#F4EDE4;--muted:#b9ada1;--seal:#C8302B;--seal2:#E2574F;--jade:#6FA58B;--onseal:#fff;--shadow:0 20px 60px rgba(0,0,0,.45);
--serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong","SimSun",Georgia,"Times New Roman",serif;
--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color-scheme:dark}
:root[data-theme=light]{--bg:#F6EFE4;--bg2:#EFE5D5;--card:#FBF7EF;--line:#d9ccb8;--text:#231B16;--muted:#6b5e53;--seal:#B8261F;--seal2:#B8261F;--jade:#3f7a60;--shadow:0 20px 50px rgba(60,40,20,.18);color-scheme:light}
@media(prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#F6EFE4;--bg2:#EFE5D5;--card:#FBF7EF;--line:#d9ccb8;--text:#231B16;--muted:#6b5e53;--seal:#B8261F;--seal2:#B8261F;--jade:#3f7a60;--shadow:0 20px 50px rgba(60,40,20,.18);color-scheme:light}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--seal2)}a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--jade);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--seal);color:#fff;padding:8px 14px;border-radius:8px;z-index:99}.skip:focus{left:8px}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
h1,h2,h3{font-family:var(--serif);line-height:1.15;margin:0}
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:1.25rem;color:var(--text);text-decoration:none}
.brand svg{width:34px;height:34px}.brand small{font-weight:400;color:var(--muted);font-size:.95rem}
.nav nav{margin-left:auto;display:flex;gap:6px;align-items:center}
.nav nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:8px;font-size:.95rem}
.nav nav a:hover{color:var(--text);background:var(--bg2)}
.icon-btn{background:none;border:1px solid var(--line);color:var(--text);width:40px;height:40px;border-radius:10px;cursor:pointer;font-size:1.1rem}
.icon-btn:hover{background:var(--bg2)}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--seal);color:var(--onseal);border:0;padding:15px 26px;border-radius:12px;font:600 1.05rem var(--sans);text-decoration:none;cursor:pointer;box-shadow:0 8px 24px rgba(200,48,43,.3);transition:transform .15s}
.btn:hover{transform:translateY(-2px);color:#fff}.btn[aria-disabled=true]{background:var(--line);color:var(--muted);box-shadow:none;cursor:default;transform:none}
.btn.ghost{background:none;color:var(--text);border:1px solid var(--line);box-shadow:none}
.hero{padding:72px 0 80px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-120px;top:-100px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(200,48,43,.18),transparent 68%);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.kicker{color:var(--jade);letter-spacing:.14em;text-transform:uppercase;font-size:.8rem;font-weight:600;margin:0 0 14px}
.hero h1{font-size:clamp(3.2rem,8vw,6rem);display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.hero h1 .zh{letter-spacing:.04em}.hero h1 .en{font-size:.42em;color:var(--seal2);font-weight:600}
.lede{font-family:var(--serif);font-size:clamp(1.3rem,2.6vw,1.75rem);margin:22px 0 10px}
.sub{color:var(--muted);max-width:52ch;margin:0 0 28px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.dlmeta{margin:14px 0 0;color:var(--muted);font-size:.92rem;min-height:1.5em}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;padding:0;list-style:none}
.badges li{border:1px solid var(--line);border-radius:999px;padding:4px 14px;font-size:.85rem;color:var(--muted)}
.badges li::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--jade);margin-right:8px}
.phones{display:flex;justify-content:center;gap:0;position:relative}
.phone{width:250px;aspect-ratio:9/19;border-radius:36px;background:#0c0908;padding:10px;box-shadow:var(--shadow);border:1px solid #3a312b;position:absolute}
.phone.a{left:6%;top:10px;transform:rotate(-4deg)}.phone.b{right:4%;top:44px;transform:rotate(4deg)}
.phone.solo{position:relative;transform:rotate(0);width:270px;margin:0 auto}.phone img{width:100%;height:100%;display:block;border-radius:28px;object-fit:cover}.phone svg{width:100%;height:100%;display:block;border-radius:28px}
section{padding:80px 0}
.alt{background:var(--bg2);border-block:1px solid var(--line)}
.sec-h{max-width:640px;margin-bottom:44px}.sec-h h2{font-size:clamp(2rem,4.5vw,3rem)}.sec-h p{color:var(--muted);margin:12px 0 0}
.seal-mark{display:inline-block;width:.5em;height:.5em;background:var(--seal);border-radius:2px;margin-right:.35em;vertical-align:.08em}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px}
.card h3{font-size:1.3rem;margin:14px 0 8px}.card p{margin:0;color:var(--muted);font-size:.98rem}
.ico{width:46px;height:46px;border-radius:12px;background:color-mix(in srgb,var(--seal) 16%,transparent);display:grid;place-items:center;color:var(--seal2)}
.ico.j{background:color-mix(in srgb,var(--jade) 18%,transparent);color:var(--jade)}.ico svg{width:24px;height:24px}
.dl{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px}
.panel h3{font-size:1.5rem;margin-bottom:10px}
.panel ol{padding-left:1.2em;color:var(--muted)}.panel li{margin:6px 0}
#changelog-latest{white-space:pre-line;color:var(--muted)}
code{background:var(--bg2);border:1px solid var(--line);padding:1px 6px;border-radius:6px;font-size:.9em}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px}
summary{cursor:pointer;padding:18px 22px;font-family:var(--serif);font-size:1.15rem;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}summary::after{content:"+";color:var(--seal2);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"\2212"}details>div{padding:0 22px 20px;color:var(--muted)}
.faq{max-width:820px}
.rel{border-left:2px solid var(--seal);padding:4px 0 4px 22px;margin-left:6px}
.rel h3{font-size:1.4rem}.rel time{color:var(--muted);font-size:.9rem}.rel ul{color:var(--muted);padding-left:1.2em}
.note{border:1px dashed var(--line);border-radius:14px;padding:20px 24px;color:var(--muted);font-size:.95rem}
footer{border-top:1px solid var(--line);padding:48px 0 60px;color:var(--muted);font-size:.92rem}
footer .cols{display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between}
footer p{max-width:62ch;margin:.5em 0}footer ul{list-style:none;padding:0;margin:0}footer li{margin:6px 0}
.page{max-width:780px;padding:56px 0 80px}.page h1{font-size:clamp(2.2rem,5vw,3.2rem);margin-bottom:8px}.page h2{font-size:1.5rem;margin:36px 0 8px}.page p,.page li{color:var(--muted)}
.nf{text-align:center;padding:120px 0}.nf .big{font:700 clamp(5rem,20vw,10rem)/1 var(--serif);color:var(--seal2)}
@media(max-width:860px){.hero .wrap,.dl{grid-template-columns:1fr}.phones{min-height:0}.nav nav a.hide-sm{display:none}section{padding:56px 0}.hero{padding:40px 0 56px}}
@media(max-width:420px){.phone{width:200px}.phone.a{left:0}.phone.b{right:0}.phones{min-height:0}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

#screens .wrap{padding-bottom:0}#screens .sec-h{margin-bottom:28px}
.shots{overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scroll-padding-inline:max(16px,calc((100vw - 1120px)/2));padding:8px 0 28px;scrollbar-width:thin;scrollbar-color:var(--line) transparent;overscroll-behavior-x:contain}
.shots-track{display:flex;gap:28px;width:max-content;padding-inline:max(16px,calc((100vw - 1120px)/2))}
.shot{margin:0;flex:0 0 auto;width:min(250px,64vw);scroll-snap-align:start}
.shot-open{display:block;width:100%;padding:0;background:none;border:0;cursor:zoom-in;border-radius:36px}
.bezel{display:block;background:#0c0908;border:1px solid var(--line);border-radius:36px;padding:9px;box-shadow:var(--shadow);transition:transform .2s}
.shot-open:hover .bezel{transform:translateY(-4px)}
.bezel img{display:block;width:100%;height:auto;aspect-ratio:9/20;object-fit:cover;border-radius:28px;background:#15110F}
.shot figcaption{margin-top:16px;color:var(--muted);font-size:.93rem;line-height:1.45;text-align:center;padding-inline:6px}
.shot figcaption strong{display:block;font-family:var(--serif);color:var(--text);font-size:1.1rem;margin-bottom:2px}
.lb{position:fixed;inset:0;z-index:100;background:rgba(10,7,6,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;gap:12px}
.lb[hidden]{display:none}
.lb img{max-height:calc(100dvh - 90px);max-width:100%;width:auto;height:auto;border-radius:22px;box-shadow:0 20px 80px #000}
.lb p{margin:0;color:#d8cdc1;font-size:.92rem}
.lb-x{position:absolute;top:14px;right:14px;width:44px;height:44px;border-radius:12px;border:1px solid #3a312b;background:#221c18;color:#F4EDE4;font-size:1.4rem;cursor:pointer}
body.lb-open{overflow:hidden}
/* Plain screenshots: no phone frame, no bezel */
.phone,.phone.solo,.bezel{background:none;border:0;padding:0;box-shadow:none;border-radius:0;aspect-ratio:auto}
.phone.solo{width:min(300px,78vw)}
.phone img,.bezel img{width:100%;height:auto;aspect-ratio:auto;object-fit:contain;border-radius:16px;box-shadow:0 18px 50px rgba(30,15,5,.28);display:block}
.shot-open{border-radius:16px}