/* OldSnap site
   Visual language comes from the product itself: graphite glass, the amber pinned card,
   viewfinder corners, and the dimmed screen around a selection. */

:root{
  --bg:#17191C; --bg-2:#1C1F23; --bg-3:#23272C; --bg-4:#2B2F35;
  --line:rgba(242,240,235,.09); --line-2:rgba(242,240,235,.16);
  --paper:#F2F0EB; --mute:#A6ABB0; --mute-2:#8D9399;
  --amber:#FFB547; --amber-hi:#FFD681; --amber-lo:#F28C0F; --on-amber:#1A1C1F;
  --ok:#86D9A2; --err:#FF9A8B;
  --sans:"Geist","Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --mono:"Geist Mono",ui-monospace,"SF Mono",Consolas,monospace;
  --out:cubic-bezier(.22,1,.36,1); --spring:cubic-bezier(.34,1.36,.5,1);
  --wrap:1200px; --gut:clamp(16px,4vw,40px);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--paper);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;font-kerning:normal}
html[data-lang="en"]:not(.i18n-ready) body{opacity:0}
body{transition:opacity .2s linear}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,181,71,.35);color:var(--paper)}
kbd{font:500 .78em/1 var(--mono);padding:.28em .5em;border-radius:6px;background:var(--bg-4);color:var(--paper);box-shadow:inset 0 -1px 0 rgba(0,0,0,.35),0 0 0 1px var(--line-2);white-space:nowrap}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--amber);color:var(--on-amber);padding:10px 14px;border-radius:8px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- type ---------- */
h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.025em;text-wrap:balance}
html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] h3{letter-spacing:.005em;font-weight:700}
.h-hero{font-size:clamp(40px,6.6vw,84px);line-height:1.04;letter-spacing:-.04em}
html[lang="zh-CN"] .h-hero{line-height:1.14;letter-spacing:.01em}
.h-sec{font-size:clamp(28px,3.8vw,46px);line-height:1.12}
.h-quote{font-size:clamp(24px,3vw,38px);line-height:1.25;font-weight:600;max-width:24ch}
html[lang="zh-CN"] .h-quote{max-width:20em;line-height:1.38}
.lede{font-size:clamp(17px,1.5vw,19px);line-height:1.7;color:var(--mute);max-width:44em;margin:0}
html[lang="en"] .lede{max-width:40em}
p{margin:0}
.muted{color:var(--mute)}
.small{font-size:13.5px;line-height:1.65;color:var(--mute-2)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:46px;padding:0 20px;border-radius:12px;border:0;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .18s var(--spring),background-color .15s,box-shadow .2s,filter .15s}
.btn:active{transform:scale(.97)}
.btn-amber{background:linear-gradient(180deg,var(--amber-hi),var(--amber) 55%,#FBA632);color:var(--on-amber);box-shadow:inset 0 1px 0 rgba(255,255,255,.45),0 10px 28px -10px rgba(255,165,40,.6)}
.btn-amber:hover{filter:brightness(1.06)}
.btn-glass{background:rgba(242,240,235,.07);color:var(--paper);box-shadow:inset 0 0 0 1px var(--line-2)}
.btn-glass:hover{background:rgba(242,240,235,.12)}
.btn-sm{height:36px;padding:0 14px;border-radius:10px;font-size:14px}
.btn[aria-disabled="true"],.btn:disabled{opacity:.5;pointer-events:none}
.btn svg{width:18px;height:18px}
.link{color:var(--amber);text-decoration:underline;text-decoration-color:rgba(255,181,71,.4);text-underline-offset:3px}
.link:hover{text-decoration-color:var(--amber)}

/* ---------- nav: the product's glass toolbar ---------- */
.nav{position:sticky;top:0;z-index:40;padding:12px var(--gut) 0}
.nav-in{max-width:var(--wrap);margin:0 auto;height:56px;display:flex;align-items:center;gap:6px;padding:0 8px 0 12px;border-radius:16px;background:rgba(26,28,31,.72);backdrop-filter:blur(22px) saturate(1.5);-webkit-backdrop-filter:blur(22px) saturate(1.5);box-shadow:0 0 0 1px var(--line),0 14px 34px -14px rgba(0,0,0,.6)}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;font-size:17px;letter-spacing:-.02em;text-decoration:none;margin-right:auto;padding:4px;border-radius:10px}
.brand img{width:30px;height:30px}
.nav-links{display:flex;gap:2px}
.nav-links a,.nav-btn{height:36px;display:inline-flex;align-items:center;padding:0 12px;border-radius:9px;font-size:14.5px;color:var(--mute);text-decoration:none;background:none;border:0;cursor:pointer;transition:background-color .15s,color .15s}
.nav-links a:hover,.nav-btn:hover{background:rgba(242,240,235,.07);color:var(--paper)}
.nav-sep{width:1px;height:20px;background:var(--line-2);margin:0 4px}
.nav-btn.lang{font-weight:600;color:var(--paper);min-width:52px;justify-content:center}
@media (max-width:860px){.nav-links{display:none}.nav-sep{display:none}}
@media (max-width:420px){.nav .acct{display:none}.brand span{display:none}}

/* ---------- hero ---------- */
.hero{padding:clamp(48px,8vw,104px) 0 0}
.hero-head{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:28px 56px;align-items:end}
.hero-side{display:flex;flex-direction:column;gap:24px;padding-bottom:8px}
.cta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.cta-note{font-size:13.5px;color:var(--mute-2);margin-top:-8px}
@media (max-width:900px){.hero-head{grid-template-columns:1fr}}

.demo{margin-top:clamp(36px,5vw,64px)}
.stage-frame{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:16/9;background:#20343C;box-shadow:0 0 0 1px var(--line-2),0 40px 90px -30px rgba(0,0,0,.8),0 0 120px -40px rgba(255,181,71,.25)}
.scaler{position:absolute;left:0;top:0;transform-origin:0 0}
.demo-bar{display:flex;align-items:center;gap:6px;margin-top:14px;flex-wrap:wrap}
.chapters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;flex:1;min-width:0}
.chap{position:relative;border:0;background:none;padding:12px 2px 6px;text-align:left;cursor:pointer;color:var(--mute-2);font-size:13.5px;font-weight:500;border-radius:6px;transition:color .2s}
.chap::before,.chap i{content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:2px;background:var(--line-2)}
.chap i{background:var(--amber);transform:scaleX(0);transform-origin:left}
.chap[aria-current="step"]{color:var(--paper)}
.chap.done i{transform:scaleX(1);opacity:.45}
.chap kbd{margin-left:6px;font-size:10.5px;vertical-align:1px}
@media (max-width:640px){.chap kbd{display:none}.chap{font-size:12px}}
.play{width:40px;height:40px;border-radius:10px;border:0;background:rgba(242,240,235,.07);display:grid;place-items:center;cursor:pointer;flex:none}
.play:hover{background:rgba(242,240,235,.12)}
.play svg{width:16px;height:16px;fill:currentColor}
.demo-note{font-size:12.5px;color:var(--mute-2);margin-top:4px}

/* ====== simulated desktop (fixed 1280x720 world, colors fixed) ====== */
.desk{position:relative;width:1280px;height:720px;overflow:hidden;font-family:var(--sans);color:#1B1F23;user-select:none;-webkit-user-select:none}
.wall{position:absolute;inset:0;background:radial-gradient(820px 560px at 14% 6%,#46707F 0,transparent 70%),radial-gradient(760px 540px at 96% 100%,#7A5C42 0,transparent 70%),#22343B}
.win{position:absolute;background:#F7F8F9;border-radius:10px;overflow:hidden;box-shadow:0 0 0 1px rgba(0,0,0,.12),0 26px 60px -16px rgba(0,0,0,.6);display:flex;flex-direction:column}
.tbar{height:38px;flex:none;display:flex;align-items:flex-end;background:#E4E7EA;padding-left:10px}
.ttab{height:30px;background:#F7F8F9;border-radius:8px 8px 0 0;padding:0 14px;display:flex;align-items:center;gap:8px;font-size:12.5px;color:#30363B}
.ttab b{width:13px;height:13px;border-radius:4px;background:linear-gradient(135deg,#3B7285,#1E3A48)}
.wctl{margin-left:auto;display:flex;align-self:flex-start}
.wctl i{width:44px;height:30px;display:grid;place-items:center;font-style:normal;font-size:12px;color:#5A6066}
.addr{margin:8px 12px 0;height:28px;border-radius:14px;background:#E4E7EA;display:flex;align-items:center;padding:0 14px;font-size:12px;color:#5A6168}
.doc{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:22px 26px;flex:1}
.side span{display:block;height:9px;border-radius:5px;background:#E1E5E8;margin:0 0 14px}
.side span.on{background:#C9D6DC}
.crumbs{font-size:11.5px;color:#7A8288}
.doc h4{margin:4px 0 16px;font-size:24px;letter-spacing:-.01em;font-weight:650}
.dcard{position:relative;width:560px;padding:20px 22px 20px;border-radius:10px;background:#FFFFFF;box-shadow:0 0 0 1px #E3E7EA}
.dcard h5{margin:0 0 10px;font-size:17px;font-weight:650;color:#15191C;height:24px}
.ln{position:relative;height:25px;font-size:14.5px;line-height:25px;color:#353B41;white-space:nowrap;perspective:600px}
.ln>span{position:absolute;left:0;top:0;right:0;backface-visibility:hidden;transform-origin:50% 50%}
.ln>.b,.dcard h5 .b{transform:rotateX(-90deg);opacity:0;color:#15191C}
.dcard h5{position:relative;perspective:600px}
.dcard h5>span{position:absolute;left:0;top:0;white-space:nowrap;backface-visibility:hidden}
.tag429{display:inline-flex;margin-top:14px;font:500 12px/1 var(--mono);color:#8A4B00;background:#FFF1DA;border-radius:6px;padding:6px 8px}
.skel span{display:block;height:9px;border-radius:5px;background:#E8EBEE;margin:16px 0 0}
.chatwin .msgs{flex:1;background:#EEF0F2;padding:16px;display:flex;flex-direction:column;gap:14px}
.m{display:flex;gap:8px;max-width:88%}
.m.me{align-self:flex-end;flex-direction:row-reverse}
.m i{width:28px;height:28px;border-radius:8px;flex:none;background:linear-gradient(135deg,#C7A27A,#8D6A4C)}
.m.me i{background:linear-gradient(135deg,#6B9AA8,#3B6472)}
.m p{background:#fff;border-radius:9px;padding:8px 11px;font-size:12.5px;line-height:1.5;color:#2A2F33}
.m.me p{background:#BFE8A5}
.chatwin .inp{height:50px;border-top:1px solid #DDE1E4;display:flex;align-items:center;padding:0 14px;font-size:12px;color:#A0A7AD;background:#F7F8F9}
.taskbar{position:absolute;left:0;right:0;bottom:0;height:46px;background:rgba(232,236,239,.82);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:center;gap:8px}
.taskbar b{width:32px;height:32px;border-radius:8px;background:#C4CDD3}
.taskbar b:nth-child(2){background:#4E7F8F}.taskbar b:nth-child(3){background:#D3B07A}
.tray{position:absolute;right:16px;top:0;bottom:0;display:flex;align-items:center;gap:12px;font-size:11px;color:#2A2F33;line-height:1.35;text-align:right}
.tray img{width:20px;height:20px}

/* overlay */
.ov{position:absolute;inset:0;opacity:0;pointer-events:none}
.sel{position:absolute;left:0;top:0;width:0;height:0;box-shadow:0 0 0 2400px rgba(8,10,12,.52);outline:1.5px solid var(--amber)}
.sel .cn{position:absolute;width:16px;height:16px;border:3px solid var(--amber)}
.sel .cn.tl{left:-5px;top:-5px;border-right:0;border-bottom:0;border-radius:5px 0 0 0}
.sel .cn.tr{right:-5px;top:-5px;border-left:0;border-bottom:0;border-radius:0 5px 0 0}
.sel .cn.bl{left:-5px;bottom:-5px;border-right:0;border-top:0;border-radius:0 0 0 5px}
.sel .cn.br{right:-5px;bottom:-5px;border-left:0;border-top:0;border-radius:0 0 5px 0}
.sel .sz{position:absolute;left:0;top:-30px;font:500 11.5px/1 var(--mono);color:#fff;background:rgba(18,20,23,.86);padding:6px 8px;border-radius:6px;white-space:nowrap}
.sel .sz em{font-style:normal;color:var(--amber);margin-right:6px;font-family:var(--sans);font-weight:600}
.scan{position:absolute;left:0;right:0;top:0;height:64px;opacity:0;background:linear-gradient(180deg,transparent,rgba(255,181,71,.22) 82%,rgba(255,214,129,.95) 98%,transparent);pointer-events:none}
.selclip{position:absolute;inset:0;overflow:hidden}
.hint{position:absolute;left:0;top:0;display:flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(18,20,23,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:#EDEFF1;font-size:13px;white-space:nowrap;opacity:0}
.hint kbd{background:var(--amber);color:var(--on-amber);box-shadow:none}

/* toolbar (from the app) */
.tb{position:absolute;left:0;top:0;display:flex;align-items:center;gap:2px;padding:5px;border-radius:12px;background:rgba(26,28,31,.82);backdrop-filter:blur(22px) saturate(1.5);-webkit-backdrop-filter:blur(22px) saturate(1.5);box-shadow:0 0 0 1px rgba(255,255,255,.09),0 12px 32px -8px rgba(0,0,0,.55);opacity:0;transform-origin:top right}
.tbtn{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;color:#ECEEF0;position:relative}
.tbtn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tbtn.on{color:var(--amber);background:rgba(255,181,71,.16)}
.tbtn.pri{background:var(--amber);color:#151515;margin-left:2px}
.tbtn.ai{width:auto;padding:0 10px 0 8px;gap:6px;display:flex;font-size:12.5px;font-weight:600;color:var(--amber)}
.tsep{width:1px;height:18px;background:rgba(255,255,255,.12);margin:0 4px}

/* side panel: OCR / AI */
.panel{position:absolute;width:396px;border-radius:14px;background:rgba(24,26,29,.92);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:0 0 0 1px rgba(255,255,255,.1),0 24px 50px -16px rgba(0,0,0,.7);color:#E9EBED;opacity:0;overflow:hidden}
.panel-h{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;font-size:13px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08)}
.panel-h span{font-weight:500;color:#9AA1A7;font-size:12px}
.panel-b{padding:14px 16px;font-size:13.5px;line-height:1.7;min-height:146px;color:#D9DCDF}
.panel-b .w{border-radius:3px;background:rgba(255,120,100,.0);box-shadow:inset 0 -1.5px 0 rgba(255,138,122,.85)}
.panel-b .w.fx{box-shadow:none;color:var(--amber);background:rgba(255,181,71,.18)}
.panel-f{display:flex;gap:6px;padding:10px 12px;border-top:1px solid rgba(255,255,255,.08)}
.pb{height:30px;padding:0 11px;border-radius:8px;background:rgba(255,255,255,.07);font-size:12.5px;display:flex;align-items:center;gap:6px;color:#E9EBED}
.pb.go{background:var(--amber);color:#151515;font-weight:600;margin-left:auto}
.pb.hot{box-shadow:0 0 0 1.5px var(--amber)}
.fixcount{color:var(--amber);font-weight:600;opacity:0}

/* pin */
.pin{position:absolute;left:0;top:0;opacity:0;transform-origin:0 0;border-radius:3px;box-shadow:0 0 0 1.5px var(--amber),0 2px 6px rgba(0,0,0,.25),0 28px 50px -14px rgba(0,0,0,.65);overflow:hidden;pointer-events:none}
.pin .dcard{box-shadow:none;border-radius:0}
.cursor{position:absolute;left:0;top:0;width:22px;height:22px;z-index:20;filter:drop-shadow(0 2px 3px rgba(0,0,0,.4));pointer-events:none}
.ripple{position:absolute;left:-14px;top:-14px;width:28px;height:28px;border-radius:50%;border:2px solid var(--amber);opacity:0;z-index:19;pointer-events:none}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:clamp(88px,11vw,150px) 0 0}
.sec-head{display:grid;gap:18px;max-width:760px}
.pain{padding-top:clamp(56px,7vw,96px);display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:28px clamp(28px,5vw,72px);align-items:center}
.pain + .pain{border-top:1px solid var(--line);margin-top:clamp(56px,7vw,96px)}
.pain-txt{display:flex;flex-direction:column;gap:20px}
.pain-q{position:relative}
.pain-q::before{content:"";position:absolute;left:-18px;top:.35em;bottom:.35em;width:2px;background:var(--line-2);border-radius:2px}
.fix{display:flex;flex-direction:column;gap:10px}
.fix-name{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--amber)}
.fix-name svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.fix p{color:var(--mute);max-width:34em}
html[lang="en"] .fix p{max-width:44ch}
@media (max-width:900px){.pain{grid-template-columns:1fr}.pain-q::before{display:none}}

/* viewfinder shot: the scroll reveal. corners snap in, dim lifts. */
.shot{position:relative;aspect-ratio:520/340;border-radius:12px;--pad:0px}
.shot-in{position:absolute;inset:0;border-radius:12px;overflow:hidden;background:#20343C;box-shadow:0 0 0 1px var(--line),0 30px 70px -30px rgba(0,0,0,.75)}
.shot-dim{position:absolute;inset:0;background:rgba(10,12,14,.62);pointer-events:none;transition:opacity .7s var(--out) .18s}
.vf{position:absolute;inset:-12px;pointer-events:none}
.vf i{position:absolute;width:28px;height:28px;border:3px solid var(--amber);opacity:0;transition:transform .65s var(--spring),opacity .25s linear}
.vf i:nth-child(1){left:0;top:0;border-right:0;border-bottom:0;border-radius:9px 0 0 0;transform:translate(-26px,-26px)}
.vf i:nth-child(2){right:0;top:0;border-left:0;border-bottom:0;border-radius:0 9px 0 0;transform:translate(26px,-26px)}
.vf i:nth-child(3){left:0;bottom:0;border-right:0;border-top:0;border-radius:0 0 0 9px;transform:translate(-26px,26px)}
.vf i:nth-child(4){right:0;bottom:0;border-left:0;border-top:0;border-radius:0 0 9px 0;transform:translate(26px,26px)}
.shot.in .vf i{opacity:1;transform:none}
.shot.in .shot-dim{opacity:0}
.shot-cap{position:absolute;left:0;bottom:-34px;font-size:12px;color:var(--mute-2)}
@media (prefers-reduced-motion:reduce){.vf i,.shot-dim{transition:none}}

/* vignette worlds (fixed 520x340, scaled) */
.vg{position:relative;width:520px;height:340px;overflow:hidden;font-family:var(--sans);color:#1B1F23}
.vg .wall{background:radial-gradient(420px 300px at 10% 0%,#46707F 0,transparent 70%),radial-gradient(400px 300px at 100% 100%,#7A5C42 0,transparent 70%),#22343B}
.vg .sel{box-shadow:0 0 0 1200px rgba(8,10,12,.5)}
.vg .ov{opacity:1}
.term{position:absolute;left:22px;top:22px;width:476px;height:150px;border-radius:10px;background:#16191C;box-shadow:0 0 0 1px rgba(255,255,255,.08),0 18px 40px -14px rgba(0,0,0,.6);font:12px/1.75 var(--mono);color:#B9C0C6;padding:30px 16px 0;white-space:pre}
.term::before{content:"";position:absolute;left:14px;top:12px;width:42px;height:9px;background:radial-gradient(circle at 4.5px 4.5px,#5B6167 4.5px,transparent 5px) 0 0/16px 9px repeat-x}
.term .e{color:#FF9A8B}.term .d{color:#7D858C}
.aip{position:absolute;left:22px;top:186px;width:476px;height:134px;opacity:0;border-radius:12px;background:rgba(24,26,29,.94);box-shadow:0 0 0 1px rgba(255,255,255,.1),0 18px 40px -14px rgba(0,0,0,.6);color:#E1E4E6;padding:12px 14px;font-size:12.5px;line-height:1.65}
.aip-h{display:flex;gap:8px;align-items:center;font-weight:600;font-size:12px;color:var(--amber);margin-bottom:6px}
.aip-t{white-space:pre-wrap}
.aip-t b{color:#fff}
.caret{display:inline-block;width:7px;height:14px;background:var(--amber);vertical-align:-2px;margin-left:1px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
.paper{position:absolute;left:70px;top:18px;width:380px;height:304px;background:#FBFAF7;border-radius:4px;box-shadow:0 18px 40px -14px rgba(0,0,0,.55);padding:26px 30px}
.paper h6{margin:0 0 14px;font-size:16px;font-weight:700;height:24px;position:relative;perspective:600px;color:#1E2124}
.paper h6>span{position:absolute;left:0;top:0;white-space:nowrap;backface-visibility:hidden}
.paper .ln{height:30px;line-height:30px;font-size:13px;color:#33383D}
.paper .pg{position:absolute;right:24px;bottom:16px;font-size:11px;color:#9AA0A5}
.paper .rule{height:1px;background:#E6E2DA;margin:0 0 12px}
.dlg{position:absolute;left:104px;top:40px;width:312px;height:250px;border-radius:12px;background:#F7F8F9;box-shadow:0 18px 40px -14px rgba(0,0,0,.6);padding:18px 20px;font-size:13px;color:#2A2F33}
.dlg h6{margin:0 0 14px;font-size:15px;font-weight:650}
.opt{display:flex;justify-content:space-between;align-items:center;height:38px;border-bottom:1px solid #E6E9EC}
.sw{width:32px;height:18px;border-radius:9px;background:#C9CFD4;position:relative}
.sw::after{content:"";position:absolute;left:2px;top:2px;width:14px;height:14px;border-radius:50%;background:#fff}
.sw.on{background:#3B7285}.sw.on::after{left:16px}
.dlg-f{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}
.dlg-f span{height:32px;padding:0 14px;border-radius:8px;display:flex;align-items:center;background:#E4E7EA;font-size:12.5px}
.dlg-f span.apply{background:#1E3A48;color:#fff}
.anno{position:absolute;inset:0;overflow:visible}
.mk{position:absolute;width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:50%;background:#FF5A4E;color:#fff;font:700 13px/26px var(--sans);text-align:center;box-shadow:0 0 0 2px #fff,0 3px 8px rgba(0,0,0,.3);transform:scale(0)}
.sheet{position:absolute;left:18px;top:24px;width:300px;height:250px;border-radius:10px;background:#fff;box-shadow:0 18px 40px -14px rgba(0,0,0,.55);overflow:hidden;font-size:12px}
.sheet .r{display:grid;grid-template-columns:38px 1fr 80px;height:27px;align-items:center;border-bottom:1px solid #ECEFF1;padding:0 10px;color:#3A4045}
.sheet .r:first-child{background:#EEF2F4;font-weight:600;color:#59616A}
.sheet .r span:last-child{text-align:right;font-variant-numeric:tabular-nums}
.form{position:absolute;left:214px;top:150px;width:288px;height:172px;border-radius:10px;background:#F7F8F9;box-shadow:0 18px 40px -14px rgba(0,0,0,.6);padding:16px 18px;font-size:12px;color:#3A4045}
.form h6{margin:0 0 12px;font-size:14px;font-weight:650;color:#1E2124}
.fld{display:grid;grid-template-columns:64px 1fr;align-items:center;gap:8px;margin-bottom:8px}
.fld span+span{display:block;height:30px;border-radius:7px;background:#fff;box-shadow:0 0 0 1px #DADFE3;padding:0 9px;line-height:30px;font-variant-numeric:tabular-nums;color:#1E2124;text-align:right}
.vpin{position:absolute;left:18px;top:51px;width:300px;opacity:0;transform-origin:0 0;background:#fff;border-radius:3px;box-shadow:0 0 0 1.5px var(--amber),0 24px 40px -12px rgba(0,0,0,.65);font-size:11px;overflow:hidden}
.vpin .r{display:grid;grid-template-columns:38px 1fr 80px;height:27px;align-items:center;padding:0 9px;border-bottom:1px solid #ECEFF1;color:#3A4045}
.vpin .r span:last-child{text-align:right;font-variant-numeric:tabular-nums}
.vchip{position:absolute;display:flex;align-items:center;gap:7px;padding:6px 10px;border-radius:999px;background:rgba(18,20,23,.86);color:#EDEFF1;font-size:11.5px;white-space:nowrap;opacity:0}
.vchip kbd{font-size:10px;background:var(--amber);color:var(--on-amber);box-shadow:none}

/* ---------- more ---------- */
.more{margin-top:clamp(40px,5vw,64px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(28px,5vw,72px);border-top:1px solid var(--line)}
.more div{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.more dt{font-weight:600;font-size:15.5px}
.more dd{margin:0;color:var(--mute);font-size:15px}
@media (max-width:860px){.more{grid-template-columns:1fr}}
@media (max-width:520px){.more div{grid-template-columns:1fr;gap:4px}}

/* ---------- privacy ---------- */
.flow{margin-top:clamp(40px,5vw,60px);display:grid;grid-template-columns:minmax(0,1.3fr) 120px minmax(0,1fr) 80px minmax(0,1fr);align-items:stretch}
.node{border-radius:16px;padding:22px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);display:flex;flex-direction:column;gap:12px}
.node h3{font-size:17px}
.node ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-size:14.5px;color:var(--mute)}
.node li{display:flex;gap:10px;align-items:flex-start}
.node li svg{width:16px;height:16px;flex:none;margin-top:4px;stroke:var(--ok);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.node.home{background:linear-gradient(180deg,#22262B,#1B1E22);box-shadow:inset 0 0 0 1.5px rgba(255,181,71,.55)}
.node.home h3{display:flex;align-items:center;gap:10px}
.node.home h3 img{width:26px;height:26px}
.wire{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;font-size:12.5px;color:var(--mute-2);text-align:center;padding:0 8px}
.wire::before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:repeating-linear-gradient(90deg,var(--line-2) 0 6px,transparent 6px 11px)}
.wire span{position:relative;background:var(--bg);padding:4px 6px;border-radius:6px;line-height:1.4}
.wire .packet{position:relative;font:500 11px/1 var(--mono);color:var(--on-amber);background:var(--amber);padding:5px 7px;border-radius:5px}
.priv-notes{margin-top:28px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.priv-notes p{color:var(--mute);font-size:15px}
.priv-notes b{color:var(--paper);font-weight:600;display:block;margin-bottom:4px}
@media (max-width:980px){
  .flow{grid-template-columns:1fr;gap:0}
  .wire{height:70px}
  .wire::before{left:50%;right:auto;top:0;bottom:0;width:1px;height:auto;background:repeating-linear-gradient(180deg,var(--line-2) 0 6px,transparent 6px 11px)}
  .priv-notes{grid-template-columns:1fr}
}

/* ---------- limits ---------- */
.limits{margin:clamp(36px,4vw,52px) 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(28px,5vw,72px)}
.limits li{padding:18px 0 18px 30px;border-bottom:1px solid var(--line);position:relative;color:var(--mute);font-size:15.5px}
.limits li::before{content:"";position:absolute;left:4px;top:28px;width:12px;height:2px;background:var(--mute-2);border-radius:2px}
.limits b{color:var(--paper);font-weight:600}
@media (max-width:760px){.limits{grid-template-columns:1fr}}

/* ---------- pricing ---------- */
.price-top{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.seg{display:inline-grid;grid-template-columns:1fr 1fr;padding:4px;border-radius:12px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);position:relative}
.seg button{position:relative;z-index:1;height:38px;padding:0 18px;border:0;background:none;border-radius:9px;font-size:14.5px;font-weight:500;color:var(--mute);cursor:pointer;transition:color .2s}
.seg button[aria-pressed="true"]{color:var(--paper)}
.seg .thumb{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:9px;background:var(--bg-4);box-shadow:0 1px 2px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.06);transition:transform .35s var(--spring)}
.seg[data-v="year"] .thumb{transform:translateX(100%)}
.plans{margin-top:36px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
.plan{position:relative;border-radius:20px;padding:28px 26px 26px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);display:flex;flex-direction:column}
.plan h3{font-size:20px;display:flex;align-items:center;gap:10px}
.plan .for{margin-top:6px;font-size:14.5px;color:var(--mute);min-height:3.3em}
.amount{margin-top:22px;display:flex;align-items:baseline;gap:6px;font-variant-numeric:tabular-nums;min-height:58px}
.amount b{font-size:48px;font-weight:650;letter-spacing:-.03em;line-height:1}
.amount span{font-size:15px;color:var(--mute)}
.amount-sub{font-size:13.5px;color:var(--mute-2);min-height:1.6em;font-variant-numeric:tabular-nums;margin-top:6px}
.plan dl{margin:22px 0 24px;display:grid;gap:0}
.plan dl div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:14.5px}
.plan dt{color:var(--mute)}
.plan dd{margin:0;font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.plan .btn{margin-top:auto;width:100%}
/* Pro is the pinned amber card from the logo */
.plan.pro{background:linear-gradient(160deg,var(--amber-hi) 0%,var(--amber) 48%,#F59A1E 100%);color:var(--on-amber);box-shadow:0 30px 60px -24px rgba(255,160,40,.45),inset 0 1px 0 rgba(255,255,255,.5)}
.plan.pro::before{content:"";position:absolute;right:22px;top:22px;width:16px;height:16px;border-radius:50%;background:#1A1C1F;opacity:.9;box-shadow:inset 0 2px 3px rgba(0,0,0,.6)}
.plan.pro .for,.plan.pro dt,.plan.pro .amount span,.plan.pro .amount-sub{color:rgba(26,28,31,.72)}
.plan.pro dl div{border-top-color:rgba(26,28,31,.14)}
.plan.pro .btn{background:#1A1C1F;color:var(--paper);box-shadow:none}
.plan.pro .btn:hover{background:#2A2D31}
.plan.pro :focus-visible{outline-color:#1A1C1F}
.badge{font-size:12px;font-weight:600;padding:3px 8px;border-radius:999px;background:rgba(26,28,31,.12)}
.pack{margin-top:18px;border-radius:20px;padding:22px 26px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);display:grid;grid-template-columns:auto 1fr auto;gap:8px 28px;align-items:center}
.pack .amount{margin:0;min-height:0}
.pack .amount b{font-size:34px}
.pack h3{font-size:18px}
.pack p{color:var(--mute);font-size:14.5px}
.fine{margin-top:26px;display:grid;gap:8px;max-width:820px}
.fine p{font-size:13.5px;color:var(--mute-2);line-height:1.7}
@media (max-width:980px){.plans{grid-template-columns:1fr;max-width:520px}.plan .for{min-height:0}.pack{grid-template-columns:1fr;max-width:520px}}

/* ---------- download ---------- */
.dl{border-radius:28px;padding:clamp(32px,5vw,64px);background:radial-gradient(600px 300px at 85% 0%,rgba(255,181,71,.16),transparent 70%),var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:36px;align-items:center;overflow:hidden;position:relative}
.dl-icon{width:120px;height:120px;filter:drop-shadow(0 24px 30px rgba(0,0,0,.5))}
.dl-meta{display:grid;gap:10px;font-size:14.5px;color:var(--mute)}
.dl-meta div{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.dl-meta dt{flex:none;width:6.5em;color:var(--mute-2)}
.dl-meta dd{margin:0;color:var(--paper);font-variant-numeric:tabular-nums;min-width:0}
.dl-meta dd.hash{font:12px/1.6 var(--mono);color:var(--mute);word-break:break-all}
.dl-left{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.dl-status{font-size:13.5px;color:var(--mute-2);min-height:1.5em}
@media (max-width:860px){.dl{grid-template-columns:1fr}}

/* ---------- author / footer ---------- */
.author{display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;align-items:start;max-width:760px}
.author img{width:96px;height:96px;border-radius:24px;background:#fff;box-shadow:0 0 0 1px var(--line-2)}
.author p{color:var(--mute);font-size:16.5px}
.author p + p{margin-top:12px}
@media (max-width:520px){.author{grid-template-columns:1fr}}
.foot{margin-top:clamp(96px,12vw,160px);border-top:1px solid var(--line);padding:32px 0 40px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;font-size:14px;color:var(--mute-2)}
.foot nav{display:flex;gap:18px;flex-wrap:wrap}
.foot a{text-decoration:none;color:var(--mute)}
.foot a:hover{color:var(--paper)}
.foot .who{display:flex;align-items:center;gap:10px}
.foot .who img{width:28px;height:28px;border-radius:8px;background:#fff}

/* ---------- account ---------- */
.acct-main{max-width:640px;margin:0 auto;padding:clamp(40px,7vw,80px) var(--gut) 0}
.acct-main h1{font-size:clamp(30px,4vw,40px)}
.card{position:relative;margin-top:28px;border-radius:20px;padding:28px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line)}
.card + .card{margin-top:16px}
.card h2{font-size:18px;margin-bottom:6px}
.field{display:grid;gap:8px;margin-top:18px}
.field label{font-size:14px;font-weight:500}
.input{height:48px;border-radius:12px;border:0;background:var(--bg);box-shadow:inset 0 0 0 1px var(--line-2);color:var(--paper);font:500 16px var(--sans);padding:0 14px;width:100%;transition:box-shadow .15s}
.input:focus{outline:none;box-shadow:inset 0 0 0 1.5px var(--amber)}
.input.code{font:600 22px/1 var(--mono);letter-spacing:.4em;text-align:center}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:18px}
.or{display:flex;align-items:center;gap:14px;margin:22px 0;color:var(--mute-2);font-size:13px}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.g-btn{width:100%;background:#F2F0EB;color:#1A1C1F}
.g-btn:hover{background:#fff}
.msg{margin-top:14px;font-size:14px;min-height:1.4em}
.msg.err{color:var(--err)}
.msg.ok{color:var(--ok)}
.planline{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.planname{font-size:28px;font-weight:650;letter-spacing:-.02em}
.meter{margin-top:18px;height:10px;border-radius:6px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
.meter i{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--amber-lo),var(--amber));transform-origin:left;transform:scaleX(0);transition:transform .9s var(--out);border-radius:6px}
.meter.low i{background:linear-gradient(90deg,#E5603F,var(--err))}
.qline{display:flex;justify-content:space-between;gap:12px;margin-top:10px;font-size:14px;color:var(--mute);font-variant-numeric:tabular-nums;flex-wrap:wrap}
.devs{list-style:none;margin:12px 0 0;padding:0}
.devs li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 0;border-top:1px solid var(--line)}
.devs .dn{font-weight:500;overflow-wrap:anywhere}
.devs .dm{font-size:13px;color:var(--mute-2)}
.cur{font-size:12px;font-weight:600;color:var(--on-amber);background:var(--amber);padding:2px 7px;border-radius:999px;margin-left:8px;vertical-align:2px}
.choose{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}
.opt-plan{text-align:left;border:0;cursor:pointer;border-radius:14px;padding:14px 16px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--line-2);display:grid;gap:2px;transition:box-shadow .15s,background-color .15s}
.opt-plan:hover{background:#1A1D20}
.opt-plan[aria-checked="true"]{box-shadow:inset 0 0 0 2px var(--amber)}
.opt-plan b{font-size:15px}
.opt-plan span{font-size:13.5px;color:var(--mute);font-variant-numeric:tabular-nums}
@media (max-width:520px){.choose{grid-template-columns:1fr}.card{padding:22px 18px}}
.banner{margin-top:24px;border-radius:16px;padding:18px 20px;background:linear-gradient(160deg,var(--amber-hi),var(--amber));color:var(--on-amber);display:flex;gap:14px;align-items:flex-start}
.banner b{display:block;font-size:16px}
.banner p{font-size:14.5px;opacity:.8}
.announce{margin-top:20px;border-radius:14px;padding:14px 16px;background:var(--bg-3);font-size:14.5px;color:var(--mute)}
.spin{width:22px;height:22px;border-radius:50%;border:2.5px solid var(--line-2);border-top-color:var(--amber);animation:spin .8s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- legal / 404 ---------- */
.legal{max-width:720px;margin:0 auto;padding:clamp(40px,7vw,80px) var(--gut) 0}
.legal h1{font-size:clamp(30px,4vw,42px)}
.legal .upd{margin-top:10px;color:var(--mute-2);font-size:14px}
.legal h2{font-size:20px;margin:40px 0 10px}
.legal p,.legal li{color:var(--mute);font-size:16px}
.legal p + p{margin-top:12px}
.legal ul{padding-left:1.2em;margin:10px 0 0;display:grid;gap:8px}
.legal strong{color:var(--paper);font-weight:600}
.nf{min-height:70vh;display:grid;place-items:center;text-align:center;padding:60px var(--gut)}
.nf-box{position:relative;padding:48px 40px;max-width:520px}
.nf-box .vf{inset:0}
.nf-box .vf i{opacity:1;transform:none}
.nf h1{font-size:clamp(28px,4vw,40px);margin:8px 0 14px}
.nf .code{font:600 15px var(--mono);color:var(--amber)}
.nf p{color:var(--mute)}
.nf .cta{justify-content:center;margin-top:26px}

/* ---------- hero headline: selected like a screenshot ---------- */
.snap{position:relative;display:inline-block;padding:6px 14px 10px;margin:0 -14px}
.snap::before{content:"";position:absolute;inset:0;border-radius:4px;background:rgba(255,181,71,.07);outline:1px solid rgba(255,181,71,.55);opacity:0;transition:opacity .4s linear .5s}
.snap .vf{inset:-4px}
.snap .vf i{width:22px;height:22px;border-width:3px}
.snap-sz{position:absolute;left:10px;top:-30px;font:500 12px/1 var(--mono);color:var(--paper);background:rgba(18,20,23,.9);box-shadow:0 0 0 1px var(--line);padding:6px 8px;border-radius:6px;white-space:nowrap;opacity:0;transform:translateY(4px);transition:opacity .3s linear .55s,transform .5s var(--out) .55s;letter-spacing:0;font-variant-numeric:tabular-nums}
.snap.in::before{opacity:1}
.snap.in .vf i{opacity:1;transform:none}
.snap.in .snap-sz{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.snap::before,.snap-sz{transition:none}}
.hero h1{padding-top:28px}

.vscale{position:absolute;left:0;top:0;transform-origin:0 0}
.dcard h5 .a,.ln .a{transform:none}
.dcard.flipped .a{opacity:0}
.dcard.flipped .b{transform:none;opacity:1}
@media (max-width:520px){.snap{margin:0 -8px;padding:4px 8px 8px}.snap-sz{left:4px}}
html[data-lang="zh"] [data-l="en"],html[data-lang="en"] [data-l="zh"]{display:none!important}
.legal ul + p{margin-top:14px}