/* OnePDA v3. One sans family. Colour and weight only for emphasis. */
:root{
  --t-xs:.8125rem;--t-sm:.9375rem;--t-base:1.0625rem;--t-md:1.25rem;--t-lg:1.625rem;
  --t-lede:clamp(1.05rem,1.9vw,1.3rem);--t-h3:clamp(1.4rem,2.6vw,1.9rem);--t-h2:clamp(1.9rem,4.6vw,3.4rem);--t-xl:clamp(2.1rem,6vw,4.6rem);--t-h1:clamp(2.35rem,7.4vw,5.4rem);--t-word:clamp(3.1rem,13.5vw,9.5rem);
  --ink:#0F1B2D;--ink2:#0A1320;--ink3:#16263D;--paper:#F6F3EE;--alt:#EDE8DF;--line:#E4DED4;--stone:#8A8F98;
  --verm:#E0452B;          /* brand vermilion: large type, glows, decoration */
  --btn:#C73A20;           /* AA with white text */
  --acc-l:#C73A20;         /* accent text on light */
  --acc-d:#F2684E;         /* accent text on dark */
  --mute-l:#4F5663;--mute-d:#A9B3C1;
  --fc:#0F1B2D;
  --ease:cubic-bezier(.22,.8,.26,1);
  --font:"Inter Tight",Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei";
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
body{margin:0;font-family:var(--font);font-size:var(--t-base);line-height:1.55;color:var(--ink);background:var(--paper);overflow-x:clip;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.05}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--fc);outline-offset:3px;border-radius:6px}
.dark,.ink,.final{--fc:#F6F3EE}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--paper);color:var(--ink);padding:10px 16px;border-radius:999px;font-weight:700;transition:top .15s}
.skip:focus{top:12px}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.sec{padding:clamp(72px,10vw,128px) 0}
.tight{padding:clamp(48px,7vw,88px) 0}
.dark{background:var(--ink2);color:var(--paper)}
.ink{background:var(--ink);color:var(--paper)}
.alt{background:var(--alt)}
.muted{color:var(--mute-l)}
.dark .muted,.ink .muted{color:var(--mute-d)}
.h1{font-size:var(--t-h1);font-weight:800;letter-spacing:-.04em;line-height:1}
.h2{font-size:var(--t-h2);letter-spacing:-.035em}
.h3{font-size:var(--t-md);letter-spacing:-.02em}
.acc{color:var(--verm)}
.dark .acc,.ink .acc{color:var(--acc-d)}
.lede{font-size:var(--t-lede);line-height:1.5;max-width:56ch;color:var(--mute-d)}
.light-lede{color:var(--mute-l)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:var(--t-xs);font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:7px 14px;border-radius:999px;border:1px solid rgba(246,243,238,.28);color:var(--paper)}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--verm)}
.on-light .eyebrow,.eyebrow.l{border-color:rgba(15,27,45,.25);color:var(--ink)}
.sec-h{margin-bottom:clamp(28px,4vw,48px);max-width:20ch}
.sec-sub{max-width:60ch;margin-top:16px}

/* Buttons and tags */
.btn{display:inline-flex;align-items:center;gap:12px;padding:8px 8px 8px 24px;border-radius:999px;background:var(--btn);color:#fff;font-weight:700;text-decoration:none;border:2px solid transparent;font-size:var(--t-base);line-height:1.2;transition:background-color .18s,transform .18s}
.btn:hover{background:#B2331B}
.btn .ic{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:var(--ink);flex:none;transition:transform .2s var(--ease)}
.btn:hover .ic{transform:rotate(-45deg)}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor;padding:8px 24px}
.btn.ghost:hover{background:rgba(127,127,127,.14)}
.btn.sm{padding:5px 5px 5px 16px;gap:10px;font-size:var(--t-sm)}
.btn.sm .ic{width:30px;height:30px}
.btn.paper{background:var(--paper);color:var(--ink)}
.btn.paper .ic{background:var(--btn);color:#fff}
.btn.paper:hover{background:#fff}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;padding:6px 14px;border-radius:999px;font-size:var(--t-sm);font-weight:600;border:1px solid currentColor;line-height:1.2;opacity:.92}
.tag.fill{background:rgba(246,243,238,.12);border-color:transparent}
.arrow-link{display:inline-flex;align-items:center;gap:10px;font-weight:700;text-decoration:none}
.arrow-link .ic{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--btn);color:#fff;transition:transform .2s var(--ease)}
.arrow-link:hover .ic{transform:rotate(-45deg)}
.example{display:inline-block;font-size:var(--t-xs);font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:999px;background:#FFE9A8;color:#4A3600;border:1px solid #D9B94F}

/* Header: floating rounded pill */
header.site{position:fixed;top:12px;left:0;right:0;z-index:50;padding:0 12px;pointer-events:none}
.pill{pointer-events:auto;position:relative;max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 8px 8px 22px;border-radius:999px;background:rgba(246,243,238,.96);color:var(--ink);box-shadow:0 8px 30px rgba(10,19,32,.18);--fc:#0F1B2D}
.logo{font-weight:800;font-size:var(--t-md);letter-spacing:-.04em;text-decoration:none}
.logo span{color:var(--btn)}
.toggle{width:44px;height:44px;border-radius:50%;border:0;background:var(--ink);color:var(--paper);display:grid;place-items:center;padding:0}
nav.main{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--paper);border-radius:28px;box-shadow:0 14px 40px rgba(10,19,32,.25);padding:12px;display:none;max-height:calc(100vh - 100px);overflow:auto}
nav.main.open{display:block}
nav.main ul{display:block}
nav.main a,.ddb{display:block;padding:12px 16px;border-radius:16px;text-decoration:none;font-weight:600;background:none;border:0;width:100%;text-align:left}
nav.main a:hover,.ddb:hover{background:rgba(15,27,45,.07)}
nav.main a[aria-current=page]{color:var(--btn)}
.ddb{display:flex;justify-content:space-between;align-items:center}
.ddb svg{transition:transform .2s}
.ddb[aria-expanded=true] svg{transform:rotate(180deg)}
nav.main .ddm{display:none;padding-left:10px}
nav.main .ddm.open{display:block}
nav.main .btn{display:flex;align-items:center;background:var(--btn);margin:8px 0 4px;justify-content:space-between;width:100%;color:#fff;padding-left:22px}
nav.main .btn:hover{background:#B2331B}
@media(min-width:960px){
  .toggle{display:none}
  nav.main{position:static;display:block;background:none;box-shadow:none;padding:0;overflow:visible;max-height:none}
  nav.main>ul{display:flex;align-items:center;gap:2px}
  nav.main a,.ddb{width:auto;padding:10px 16px;display:inline-flex;gap:6px;align-items:center}
  nav.main .btn{display:inline-flex;margin:0 0 0 6px;width:auto;padding:5px 5px 5px 18px;font-size:var(--t-sm)}
  nav.main .btn .ic{width:34px;height:34px}
  .dd{position:relative}
  .ddm{position:absolute;top:calc(100% + 12px);left:0;min-width:300px;background:var(--paper);border-radius:24px;box-shadow:0 14px 40px rgba(10,19,32,.25);padding:10px}
  nav.main .ddm a{display:block;width:100%;padding:12px 16px}
  .ddm small{display:block;font-weight:500;color:var(--mute-l);font-size:var(--t-xs);margin-top:2px;line-height:1.35}
  .ddm::before{content:'';position:absolute;left:0;right:0;top:-14px;height:14px}
  nav.main .dd:hover>.ddm{display:block}
}
.ddm small{display:none}
@media(min-width:960px){.ddm small{display:block}}

/* Hero */
.hero{position:relative;padding:130px 0 clamp(48px,7vw,96px);background:var(--ink2);color:var(--paper);overflow:clip;--fc:#F6F3EE}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 78% 38%,rgba(224,69,43,.28),transparent 70%),radial-gradient(circle at 1px 1px,rgba(246,243,238,.09) 1px,transparent 1.5px) 0 0/28px 28px;pointer-events:none}
.hero .wrap{position:relative;display:grid;gap:36px;align-items:center}
.hero h1{margin:22px 0 20px}
.hero .lede{max-width:46ch}
@media(min-width:1000px){.hero .wrap{grid-template-columns:1.02fr 1fr;gap:24px}}

/* Arc map */
.arcmap-wrap{position:relative}
.arcmap{position:relative;aspect-ratio:1/.92;width:100%;max-width:640px;margin:0 auto}
.arcsvg{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.arcsvg path{fill:none;stroke:rgba(246,243,238,.3);stroke-width:1.5;stroke-dasharray:3 6;transition:stroke .2s,stroke-width .2s,opacity .2s}
.arcsvg path.on{stroke:var(--acc-d);stroke-width:2.5;stroke-dasharray:none}
.arcmap.hl path:not(.on){opacity:.35}
.arcsvg circle.pulse{fill:#fff}
.node{position:absolute;transform:translate(-50%,-50%);display:flex;align-items:center;gap:8px;background:none;border:0;padding:12px;color:var(--paper);font-weight:700;font-size:var(--t-sm);white-space:nowrap}
.node i{width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid var(--ink2);box-shadow:0 0 0 2px rgba(246,243,238,.55);flex:none;transition:transform .2s var(--ease),background-color .2s}
.node:hover i,.node.on i,.node:focus-visible i{background:var(--acc-d);transform:scale(1.35)}
.node.left{flex-direction:row-reverse}
.node.cn{font-size:var(--t-md)}
.node.cn i{width:22px;height:22px;background:var(--verm);box-shadow:0 0 0 8px rgba(224,69,43,.28),0 0 40px 10px rgba(224,69,43,.55)}
.node.cn:hover i{transform:none;background:var(--verm)}
.worldtag{position:absolute;left:0;top:0;font-size:var(--t-xs);font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mute-d)}
.armsg{margin:8px auto 0;max-width:640px;min-height:3.2em;padding:14px 18px;border-radius:20px;background:rgba(246,243,238,.08);font-weight:600}
.armsg b{color:var(--acc-d)}
.illus-note{font-size:var(--t-xs);color:var(--mute-d);margin:8px 4px 0;max-width:640px;margin-inline:auto}
@media(max-width:520px){.node{font-size:var(--t-xs);padding:10px 8px}.node.cn{font-size:var(--t-sm)}.node i{width:12px;height:12px}}

/* Problem: word fill */
.problem{background:var(--paper)}
.scrub{font-size:var(--t-h2);font-weight:800;letter-spacing:-.035em;line-height:1.1;max-width:24ch}
.scrub .sw{transition:opacity .15s linear}
.problem .after{margin-top:28px;font-size:var(--t-md);max-width:44ch}

/* Services arc carousel */
.arc{position:relative;height:500px;touch-action:pan-y;-webkit-user-select:none;user-select:none;margin-top:8px}
.arc-list{position:absolute;inset:0}
.sv-card{position:absolute;left:50%;top:14px;width:290px;height:410px;margin-left:-145px;border-radius:30px;background:var(--ink);color:var(--paper);padding:26px;display:flex;flex-direction:column;text-decoration:none;box-shadow:0 18px 40px rgba(10,19,32,.28);will-change:transform;transform-origin:50% 120%}
.sv-card .num{font-size:var(--t-sm);font-weight:700;color:var(--acc-d);letter-spacing:.06em}
.sv-card h3{font-size:var(--t-lg);margin:14px 0 10px;letter-spacing:-.03em}
.sv-card p{color:var(--mute-d);font-size:var(--t-sm);line-height:1.4;margin:0}
.sv-card .tags{margin-top:auto;margin-bottom:16px}
.sv-card .tag{font-size:var(--t-xs);padding:4px 11px}
.sv-card .go{display:flex;justify-content:space-between;align-items:center;font-weight:700}
.sv-card .ic{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--btn);color:#fff}
.sv-card:hover{background:var(--ink3)}
.arc-ctl{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:6px}
.rbtn{width:48px;height:48px;border-radius:50%;border:2px solid var(--ink);background:transparent;display:grid;place-items:center;padding:0}
.rbtn:hover{background:var(--ink);color:var(--paper)}
.arc-count{min-width:5ch;text-align:center;font-weight:700}
.arc.swipe{height:auto;display:block}
.arc.swipe .arc-list{position:static;display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 20px 18px;margin:0 -20px}
.arc.swipe .sv-card{position:relative;left:auto;top:auto;margin:0;flex:0 0 min(78%,300px);transform:none!important;opacity:1!important;visibility:visible!important;scroll-snap-align:center}
.swipe-on .arc-ctl{display:none}

/* Stacking cards */
.stackhead{margin-bottom:clamp(28px,4vw,56px)}
.stack{padding-bottom:20px}
.sc{position:sticky;top:calc(84px + var(--i)*16px);margin-bottom:28px;border-radius:32px;padding:clamp(24px,4vw,52px);min-height:clamp(340px,52vh,470px);display:flex;flex-direction:column;justify-content:space-between;gap:26px;transform-origin:50% 0;will-change:transform;box-shadow:0 -10px 40px rgba(0,0,0,.25)}
.sc.c1{background:var(--ink3);color:var(--paper)}
.sc.c2{background:var(--btn);color:#fff}
.sc.c3{background:var(--paper);color:var(--ink)}
.sc .word{font-size:var(--t-word);font-weight:900;letter-spacing:-.05em;line-height:.9;text-transform:uppercase}
.sc .row{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:flex-end}
.sc p{max-width:36ch;font-size:var(--t-md);margin:0 0 16px}
.sc .arrow-link .ic{background:var(--paper);color:var(--ink)}
.sc.c3 .arrow-link .ic{background:var(--btn);color:#fff}
.sc.c2 .arrow-link .ic{background:#fff}
.sc .num{font-weight:700;font-size:var(--t-sm);letter-spacing:.06em}

/* Growth machine */
.gm{display:grid;gap:28px}
@media(min-width:900px){.gm{grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{border:2px solid var(--ink);background:transparent;border-radius:999px;padding:11px 20px;font-weight:700;display:inline-flex;align-items:center;gap:10px}
.chip::before{content:"";width:16px;height:16px;border-radius:50%;border:2px solid currentColor;flex:none;transition:background-color .15s}
.chip:hover{background:rgba(15,27,45,.08)}
.chip[aria-pressed=true]{background:var(--ink);color:var(--paper)}
.chip[aria-pressed=true]::before{background:var(--acc-d);border-color:var(--acc-d)}
.machine{background:var(--ink);color:var(--paper);border-radius:32px;padding:clamp(22px,3vw,36px);--fc:#F6F3EE;min-height:300px}
.machine h3{font-size:var(--t-h3)}
.machine .empty{color:var(--mute-d)}
.mlist{display:grid;gap:10px;margin:20px 0 24px;position:relative}
.mlist li{display:flex;align-items:center;gap:14px;background:rgba(246,243,238,.08);border-radius:20px;padding:12px 14px;animation:pop .35s var(--ease) both}
.mlist li .n{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--btn);color:#fff;font-weight:800;font-size:var(--t-sm);flex:none}
.mlist li a{font-weight:700;text-decoration:none}
.mlist li a:hover{text-decoration:underline}
.mlist li span.d{display:block;font-size:var(--t-sm);color:var(--mute-d);font-weight:500}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}
.btn[aria-disabled=true]{background:#6B7280;pointer-events:none}

/* How we work */
.how{position:relative;display:grid;gap:26px;counter-reset:s}
.how .track{position:absolute;background:rgba(246,243,238,.16);border-radius:3px}
.how .fill{position:absolute;inset:0;background:var(--verm);border-radius:3px;transform-origin:0 0;transform:scale(0)}
.how .track{left:19px;top:10px;bottom:10px;width:4px}
.how li{position:relative;padding-left:62px;opacity:1}
.js .how li{opacity:.4;transition:opacity .35s}
.js .how li.on{opacity:1}
.how .dot{position:absolute;left:8px;top:2px;width:26px;height:26px;border-radius:50%;background:var(--ink2);border:3px solid rgba(246,243,238,.4);transition:background-color .3s,border-color .3s}
.how li.on .dot{background:var(--verm);border-color:var(--verm)}
.how h3{font-size:var(--t-lg);margin-bottom:6px}
.how p{color:var(--mute-d);margin:0;max-width:38ch}
@media(min-width:900px){
  .how{grid-template-columns:repeat(4,1fr);gap:28px}
  .how .track{left:0;right:0;top:19px;bottom:auto;height:4px;width:auto}
  .how .fill{transform:scale(0)}
  .how li{padding:56px 0 0}
  .how .dot{left:0;top:8px}
}

/* Test on ourselves + won't promise */
.duo{display:grid;gap:20px}
@media(min-width:800px){.duo{grid-template-columns:1fr 1fr}}
.card{background:#fff;border-radius:28px;padding:clamp(24px,3vw,40px);border:1px solid var(--line);box-shadow:0 10px 30px rgba(15,27,45,.06)}
.card h2,.card h3{margin-bottom:14px}
.card p:last-child{margin-bottom:0}

/* Free check */
.chk-home{display:grid;gap:26px}
@media(min-width:900px){.chk-home{grid-template-columns:1fr 1fr;align-items:center;gap:56px}}
.dform{display:flex;gap:10px;flex-wrap:wrap}
.dform input{flex:1 1 240px;min-width:0;padding:16px 22px;border-radius:999px;border:2px solid rgba(246,243,238,.4);background:rgba(246,243,238,.08);color:var(--paper);font-size:var(--t-base)}
.dform input::placeholder{color:var(--mute-d)}
.dform input:focus-visible{outline-offset:2px}
.light-form input{border-color:var(--ink);background:#fff;color:var(--ink)}

/* Final CTA */
.final{background:var(--btn);color:#fff;text-align:center;padding:clamp(72px,10vw,130px) 0;--fc:#fff}
.final h2{font-size:var(--t-xl);letter-spacing:-.04em;max-width:16ch;margin:0 auto 28px}
.final .btn{background:var(--paper);color:var(--ink)}
.final .btn:hover{background:#fff}
.final .btn .ic{background:var(--btn);color:#fff}
.final p{max-width:46ch;margin:0 auto 28px;font-size:var(--t-md)}

/* Footer */
footer.site{background:var(--ink2);color:var(--paper);padding:56px 0 40px;--fc:#F6F3EE}
.fgrid{display:grid;gap:32px}
@media(min-width:800px){.fgrid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
footer.site h2{font-size:var(--t-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--mute-d);margin-bottom:14px;font-weight:700}
footer.site li{margin-bottom:8px}
footer.site a{text-decoration:none}
footer.site a:hover{text-decoration:underline}
footer.site .logo span{color:var(--acc-d)}
footer.site .legal{margin-top:36px;padding-top:20px;border-top:1px solid rgba(246,243,238,.16);color:var(--mute-d);font-size:var(--t-sm);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
.soon{color:var(--mute-d);font-size:.85em}

/* Inner pages */
.phead{padding:140px 0 clamp(48px,7vw,88px);position:relative;overflow:clip}
.phead::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 60% at 85% 20%,rgba(224,69,43,.24),transparent 70%),radial-gradient(circle at 1px 1px,rgba(246,243,238,.08) 1px,transparent 1.5px) 0 0/28px 28px;pointer-events:none}
.phead .wrap{position:relative}
.phead h1{margin:20px 0 18px;max-width:17ch}
.phead .lede{margin-bottom:22px}
.crumbs{font-size:var(--t-sm);margin-bottom:6px;color:var(--mute-d)}
.crumbs a{text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.get{display:grid;gap:14px}
@media(min-width:760px){.get{grid-template-columns:1fr 1fr}}
.get li{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 24px}
.get h3{font-size:var(--t-md);margin-bottom:6px}
.get p{margin:0;color:var(--mute-l)}
.steps{display:grid;gap:14px;counter-reset:st}
@media(min-width:900px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:st;background:var(--ink);color:var(--paper);border-radius:24px;padding:22px}
.steps li::before{content:counter(st);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--btn);font-weight:800;margin-bottom:14px;color:#fff}
.steps h3{font-size:var(--t-md);margin-bottom:6px}
.steps p{margin:0;color:var(--mute-d);font-size:var(--t-sm)}
.fit{display:grid;gap:12px;max-width:760px}
.fit li{display:flex;gap:14px;align-items:flex-start;font-size:var(--t-base)}
.fit li::before{content:"";flex:none;width:22px;height:22px;margin-top:3px;border-radius:50%;background:var(--btn) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 22'%3E%3Cpath d='M6 11.5l3.5 3.5L16 8' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat}
.faq{max-width:820px;display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:0 24px}
.faq summary{padding:18px 0;font-weight:700;font-size:var(--t-base);list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:var(--t-lg);line-height:1;flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding-bottom:18px;margin:0;color:var(--mute-l)}
.under{margin-top:28px;max-width:820px}
.under summary{font-weight:700;padding:10px 0}
.under dl{margin:8px 0 0;display:grid;gap:12px}
.under dt{font-weight:700}
.under dd{margin:2px 0 0;color:var(--mute-l)}
.ov{display:grid;gap:18px}
@media(min-width:760px){.ov{grid-template-columns:1fr 1fr}}
@media(min-width:1100px){.ov{grid-template-columns:1fr 1fr 1fr}}
.ov a.sv{display:flex;flex-direction:column;background:var(--ink);color:var(--paper);text-decoration:none;border-radius:28px;padding:28px;min-height:280px;--fc:#F6F3EE}
.ov a.sv:hover{background:var(--ink3)}
.ov h2{font-size:var(--t-lg);margin:12px 0 10px;letter-spacing:-.03em}
.ov p{color:var(--mute-d);margin:0 0 18px}
.ov .tags{margin-top:auto;margin-bottom:16px}
.ov .num{color:var(--acc-d);font-weight:700;font-size:var(--t-sm)}

/* Prose pages */
.prose{max-width:760px}
.prose h2{font-size:var(--t-lg);margin:34px 0 10px;letter-spacing:-.025em}
.prose p,.prose li{color:#2A3444}
.prose ul{list-style:disc;padding-left:22px}
.prose a{color:var(--btn)}
.prose-lg p{font-size:var(--t-md);max-width:62ch}
.prose-lg h2{margin-top:44px}
.ph-note{background:#FFE9A8;color:#4A3600;padding:0 6px;border-radius:6px}

/* Pilot */
.tl{width:100%;border-collapse:collapse}
.tl caption{text-align:left;font-weight:700;padding-bottom:12px}
.tl th,.tl td{padding:18px 14px;border-top:1px solid var(--line);vertical-align:top;text-align:left}
.tl th[scope=row]{white-space:nowrap;width:1%;color:var(--btn)}
.tl td span{display:block;color:var(--mute-l);margin-top:4px}
@media(max-width:620px){.tl,.tl tbody,.tl tr,.tl th,.tl td{display:block;width:auto}.tl thead{display:none}.tl th[scope=row]{padding-bottom:0;border-top:1px solid var(--line)}.tl td{border:0;padding-top:4px}}
.trio{display:grid;gap:18px}
@media(min-width:860px){.trio{grid-template-columns:repeat(3,1fr)}}
.tick li{padding:8px 0 8px 28px;position:relative;border-bottom:1px solid var(--line)}
.tick li::before{content:"";position:absolute;left:0;top:15px;width:12px;height:12px;border-radius:50%;background:var(--btn)}
.price{font-size:var(--t-h2);font-weight:800;letter-spacing:-.035em;line-height:1.05;margin:14px 0}
.pchips{display:flex;flex-wrap:wrap;gap:10px}
.pchips li{padding:10px 20px;border-radius:999px;border:2px solid currentColor;font-weight:700}

/* Check page */
.cform{display:flex;gap:10px;flex-wrap:wrap;max-width:640px}
.cform input{flex:1 1 240px;min-width:0;padding:16px 22px;border-radius:999px;border:2px solid var(--ink);background:#fff;font-size:var(--t-base)}
.hint{color:var(--mute-l);font-size:var(--t-sm)}
#out{margin-top:28px;max-width:820px}
.sumbar{font-weight:800;font-size:var(--t-md);letter-spacing:-.02em}
.res{display:grid;gap:12px;margin-top:14px}
.res-row{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px 20px;align-items:flex-start}
.pillst{flex:none;padding:5px 14px;border-radius:999px;font-weight:800;font-size:var(--t-sm);min-width:84px;text-align:center}
.pillst.pass{background:#D5F0DC;color:#0B4A1F}
.pillst.warn{background:#FFE9A8;color:#4A3600}
.pillst.fail{background:#FAD4CC;color:#7A1A08}
.pillst.unknown{background:#E3E5E9;color:#2F3640}
.res-row h3{font-size:var(--t-md);margin-bottom:4px;letter-spacing:-.02em}
.res-row p{margin:0 0 6px}
.res-row .tech{font-size:var(--t-xs);color:var(--mute-l);margin:0 0 6px}
.res-row .why{color:var(--mute-l);font-size:var(--t-sm)}
.res-row .found{font-size:var(--t-sm);color:var(--mute-l);word-break:break-all}
.spin{display:inline-block;width:16px;height:16px;border:3px solid var(--ink);border-right-color:transparent;border-radius:50%;margin-right:10px;vertical-align:-3px;animation:rot .8s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.cta-box{margin-top:36px;background:var(--ink);color:var(--paper);border-radius:28px;padding:clamp(24px,4vw,40px);--fc:#F6F3EE}
.cta-box h2{font-size:var(--t-lg);margin-bottom:10px}
.cta-box p{color:var(--mute-d);max-width:56ch}
.defs dt{font-weight:700;margin-top:14px}
.defs dd{margin:2px 0 0;color:var(--mute-l)}

/* Contact */
.cgrid{display:grid;gap:36px}
@media(min-width:900px){.cgrid{grid-template-columns:1fr 1.1fr;gap:64px}}
.cblock{margin-bottom:28px}
.cblock h2{font-size:var(--t-md);margin-bottom:8px}
.big-mail{font-size:var(--t-h3);font-weight:800;letter-spacing:-.03em;margin:0}
.link{color:var(--btn);font-weight:600}
.qr{display:grid;place-items:center;width:160px;height:160px;border:2px dashed var(--stone);border-radius:20px;text-align:center;font-size:var(--t-sm);color:var(--mute-l);padding:10px}
.socials{display:flex;gap:18px;flex-wrap:wrap}
.fm .f{margin-bottom:16px}
.fm label{display:block;font-weight:700;margin-bottom:6px}
.fm input,.fm textarea{width:100%;padding:14px 18px;border-radius:18px;border:2px solid var(--ink);background:#fff;font-size:var(--t-base)}
.fm textarea{min-height:150px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{margin-top:14px;font-weight:600}
.planbox{background:var(--alt);border-radius:20px;padding:14px 18px;margin-bottom:18px}
.planbox ul{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.planbox li{padding:4px 12px;border-radius:999px;background:var(--ink);color:var(--paper);font-weight:600;font-size:var(--t-sm)}

/* ========== Service demos ========== */
.demo{color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:32px;padding:clamp(18px,3vw,36px);box-shadow:0 14px 40px rgba(15,27,45,.08)}
.demo-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:18px}
.demo-head h3{font-size:var(--t-md)}
.cap{font-size:var(--t-sm);color:var(--mute-l);margin:14px 0 0}

/* Sequence builder */
.seq-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.seq-tabs [role=tab]{border:2px solid var(--ink);background:transparent;border-radius:999px;padding:9px 18px;font-weight:700}
.seq-tabs [role=tab][aria-selected=true]{background:var(--ink);color:var(--paper)}
.seq-line{display:flex;margin-bottom:20px;gap:0}
.seq-line span{flex:1;border-top:4px solid var(--line);position:relative;padding-top:10px;font-size:var(--t-sm);font-weight:600;color:var(--mute-l)}
.seq-line span::before{content:"";position:absolute;top:-10px;left:0;width:16px;height:16px;border-radius:50%;background:var(--line)}
.seq-line span.on{border-color:var(--verm);color:var(--ink)}
.seq-line span.on::before{background:var(--verm)}
.mail{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#FBFAF8}
.mail .mh{padding:14px 18px;border-bottom:1px solid var(--line);font-size:var(--t-sm)}
.mail .mh b{display:inline-block;min-width:4.5em;color:var(--mute-l);font-weight:600}
.mail .mb{padding:18px;white-space:pre-line}
.mail .mb p{margin:0}

/* SEO */
.serp{position:relative;border:1px solid var(--line);border-radius:20px;background:#FBFAF8;padding:16px}
.serp-q{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 18px;margin-bottom:12px;font-size:var(--t-sm)}
.serp-meta{display:flex;justify-content:space-between;gap:10px;font-size:var(--t-sm);color:var(--mute-l);margin-bottom:10px;flex-wrap:wrap}
.serp-meta b{color:var(--ink)}
.serp-list{position:relative;height:calc(var(--rh)*6)}
.serp-r{line-height:1.3;position:absolute;left:0;right:0;top:0;height:calc(var(--rh) - 8px);background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px 14px;overflow:hidden;will-change:transform}
.serp-r .u{font-size:var(--t-xs);color:var(--mute-l);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.serp-r .t{font-weight:700;color:#1A3F8F;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.serp-r .s{font-size:var(--t-xs);color:var(--mute-l);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.serp-r.you{border:2px solid var(--verm);z-index:2;background:#FFF6F3}
.serp-r.you .t{color:var(--btn)}
.serp{--rh:84px}
.range{width:100%;margin-top:16px;accent-color:var(--btn)}
.range-l{display:block;font-weight:700;margin-top:14px}

/* Before/after */
.ba{position:relative;height:clamp(340px,56vw,400px);border-radius:22px;overflow:hidden;border:1px solid var(--line);touch-action:pan-y;-webkit-user-select:none;user-select:none}
.ba-layer{position:absolute;inset:0;overflow:hidden}
.ba-after{will-change:transform}
.ba-after .inner{position:absolute;inset:0;will-change:transform}
.ba-handle{position:absolute;top:0;bottom:0;left:0;width:44px;margin-left:-22px;border:0;background:transparent;padding:0;display:grid;place-items:center;z-index:5}
.ba-handle::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:4px;margin-left:-2px;background:var(--ink)}
.ba-handle span{position:relative;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--ink);color:#fff;font-weight:800;border:3px solid #fff}
.ba-tag{position:absolute;top:10px;z-index:4;font-size:var(--t-xs);font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:#fff;color:var(--ink);border:1px solid var(--line)}
.ba-tag.l{left:10px}.ba-tag.r{right:10px}
/* mock sites */
.mk{position:absolute;inset:0;font-size:12px;line-height:1.35;overflow:hidden}
.mk-old{background:#E8EEF7;color:#222;font-family:Verdana,Tahoma,var(--font)}
.mk-old .bar{background:#1F4E9E;color:#fff;padding:6px 10px;font-weight:700;display:flex;justify-content:space-between}
.mk-old .ban{background:#FFD400;color:#800;padding:5px;text-align:center;font-weight:700;margin:6px}
.mk-old .cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:5px;padding:6px}
.mk-old .cols div{background:#fff;border:1px solid #99a;padding:5px;min-height:62px;font-size:10px}
.mk-old .big{padding:6px 10px}
.mk-old small{font-size:10px;display:block;padding:0 10px;color:#444}
.mk-new{background:#fff;color:var(--ink);font-family:var(--font)}
.mk-new .nv{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;font-weight:800}
.mk-new .nv i{font-style:normal;font-weight:600;font-size:11px;background:var(--ink);color:#fff;padding:3px 10px;border-radius:999px}
.mk-new .hh{padding:14px 14px 4px;font-size:clamp(20px,5vw,30px);font-weight:800;letter-spacing:-.03em;line-height:1.05;max-width:16ch}
.mk-new .sb{padding:0 14px 10px;color:#4F5663;max-width:34ch}
.mk-new .cta{margin:0 14px;display:inline-block;background:var(--btn);color:#fff;font-weight:700;padding:8px 16px;border-radius:999px}
.mk-new .trio3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:14px}
.mk-new .trio3 div{background:var(--paper);border-radius:12px;padding:8px;font-weight:700;font-size:11px}

/* Flow */
.flow{display:grid;gap:0;margin:0}
.fnode{position:relative;display:flex;gap:16px;align-items:flex-start;text-align:left;border:0;background:none;padding:0 0 22px;width:100%}
.fnode::before{content:"";position:absolute;left:21px;top:46px;bottom:0;width:4px;background:var(--line)}
.fnode:last-child::before{display:none}
.fnode .c{position:relative;flex:none;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--line);color:var(--ink);font-weight:800;transition:background-color .3s,color .3s,transform .3s var(--ease)}
.fnode b{display:block;font-size:var(--t-base)}
.fnode small{color:var(--mute-l);font-size:var(--t-sm);display:block}
.fnode.on .c{background:var(--btn);color:#fff;transform:scale(1.1)}
.fnode.done .c{background:var(--ink);color:#fff}
.fnode.done::before,.fnode.on::before{background:var(--verm)}
.fdesc{background:var(--alt);border-radius:20px;padding:16px 20px;margin-top:6px;min-height:4.4em}
.fctl{margin-top:14px;display:flex;gap:10px}
@media(min-width:800px){
  .flow{grid-template-columns:repeat(4,1fr);gap:10px}
  .fnode{flex-direction:column;align-items:flex-start;padding:0}
  .fnode::before{left:46px;right:-10px;top:21px;bottom:auto;width:auto;height:4px}
  .fnode{gap:12px}
}
.minibtn{border:2px solid var(--ink);background:transparent;border-radius:999px;padding:8px 18px;font-weight:700}
.minibtn:hover{background:var(--ink);color:var(--paper)}

/* A/B */
.ab-tog{display:inline-flex;border:2px solid var(--ink);border-radius:999px;padding:4px;gap:4px;margin-bottom:18px}
.ab-tog button{border:0;background:transparent;border-radius:999px;padding:9px 20px;font-weight:700}
.ab-tog button[aria-pressed=true]{background:var(--ink);color:var(--paper)}
.ab-page{border:1px solid var(--line);border-radius:22px;background:#FBFAF8;padding:clamp(18px,3vw,32px);position:relative;min-height:230px}
.ab-page h4{font-size:var(--t-h3);letter-spacing:-.035em;max-width:18ch;margin-bottom:12px}
.ab-page p{color:var(--mute-l);max-width:40ch}
.ab-page .cta{display:inline-block;background:var(--btn);color:#fff;font-weight:700;padding:10px 22px;border-radius:999px}
.ab-win{position:absolute;top:14px;right:14px;background:#D5F0DC;color:#0B4A1F;font-weight:800;font-size:var(--t-xs);padding:5px 12px;border-radius:999px}
.ab-bars{display:grid;gap:10px;margin-top:18px}
.ab-bar{display:grid;grid-template-columns:5.5em 1fr;align-items:center;gap:10px;font-weight:700;font-size:var(--t-sm)}
.ab-bar i{display:block;height:16px;border-radius:999px;background:var(--stone);transform-origin:0 50%;transition:transform .5s var(--ease),background-color .3s}
.ab-bar.sel i{background:var(--btn)}

/* Chat */
.chat{background:#EFEAE2;border-radius:24px;padding:16px;max-width:560px}
.chat-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:2px 4px 12px;font-weight:700}
.chat-log{display:flex;flex-direction:column;gap:10px;min-height:260px;padding:6px}
.bub{max-width:86%;padding:10px 14px;border-radius:18px;animation:pop .3s var(--ease) both}
.bub.b{align-self:flex-start;background:#fff;border-bottom-left-radius:4px}
.bub.a{align-self:flex-end;background:var(--ink);color:var(--paper);border-bottom-right-radius:4px}
.bub small{display:block;margin-top:4px;opacity:.78;font-size:var(--t-xs)}
.bub.sys{align-self:center;background:#D5F0DC;color:#0B4A1F;font-weight:700;font-size:var(--t-sm);border-radius:999px;max-width:100%;text-align:center}
.typing{align-self:flex-end;background:var(--ink);border-radius:18px;padding:12px 16px;display:flex;gap:5px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--paper);animation:blink 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.chat-pick{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}

/* Reveal */
.js [data-rv]{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:var(--d,0s)}
.js [data-rv].in{opacity:1;transform:none}

/* Reduced motion */
.rm *,.rm *::before,.rm *::after{animation:none!important;transition:none!important}
.rm [data-rv]{opacity:1!important;transform:none!important}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}[data-rv]{opacity:1!important;transform:none!important}}

/* 404 */
.nf{min-height:70vh;display:grid;align-items:center}

/* ========== Airmail signature ========== */
.logo{display:inline-flex;align-items:center}
.logo-img{display:block;height:26px;width:auto}
.dark .logo-img,footer.site .logo-img{filter:invert(1)}
.pill .logo-img{filter:none}
.airmail{height:12px;background:repeating-linear-gradient(-45deg,#E0452B 0 14px,#F6F3EE 14px 28px,#0F1B2D 28px 42px,#F6F3EE 42px 56px)}
.hero{padding-top:142px}
.hero>.airmail{position:absolute;top:0;left:0;right:0;z-index:1}
.hero>.airmail.bottom{top:auto;bottom:0}
footer.site{position:relative;padding-top:68px}
footer.site>.airmail{position:absolute;top:0;left:0;right:0}
.stamp{display:block;width:56px;height:56px;filter:drop-shadow(0 3px 6px rgba(0,0,0,.3));transform:rotate(5deg)}
.card-stamp{position:absolute;top:18px;right:18px;width:46px;height:46px}
.ov a.sv{position:relative}
.sv-card .num,.ov .num{padding-right:56px}
.hero-stamp{position:absolute;top:-6px;right:2px;width:clamp(56px,9vw,84px);height:auto;z-index:2}
.hero-pm{position:absolute;top:clamp(26px,5vw,44px);right:clamp(34px,8vw,80px);width:clamp(84px,14vw,130px);color:var(--acc-d);z-index:1}
.phead-stamp{position:absolute;top:150px;right:20px;width:64px;height:64px}
@media(min-width:900px){.phead-stamp{right:max(20px,calc(50% - 540px));width:84px;height:84px}}
@media(max-width:520px){.phead-stamp{top:96px;width:48px;height:48px}}
.pm{display:block;width:120px;height:120px;opacity:.9;transform:rotate(var(--r,-10deg));pointer-events:none}
.js .pm[data-rv]:not(.in){opacity:0;transform:scale(1.7) rotate(calc(var(--r) - 16deg))}
.js .pm[data-rv]{transition:opacity .25s ease-out,transform .5s cubic-bezier(.3,1.5,.5,1)}
.sc{position:sticky}
.sc-pm{position:absolute;right:clamp(16px,4vw,48px);top:clamp(70px,18%,120px);width:clamp(76px,12vw,128px);color:currentColor;opacity:.55}
.js .sc-pm[data-rv].in{opacity:.55}
.js .sc-pm[data-rv]:not(.in){opacity:0}
.frame{padding:12px;border-radius:34px;background:repeating-linear-gradient(-45deg,#E0452B 0 16px,#F6F3EE 16px 32px,#0F1B2D 32px 48px,#F6F3EE 48px 64px)}
.frame-in{position:relative;background:var(--ink2);color:var(--paper);border-radius:24px;padding:clamp(24px,4vw,48px);overflow:clip;--fc:#F6F3EE}
.frame-pm{position:absolute;right:clamp(10px,3vw,40px);top:clamp(10px,3vw,30px);width:clamp(84px,14vw,130px);color:var(--acc-d)}
.final{position:relative;overflow:clip}
.final-pm{position:absolute;left:clamp(8px,6vw,90px);top:clamp(20px,4vw,50px);width:clamp(80px,12vw,130px);color:rgba(255,255,255,.7)}
.final .wrap{position:relative}
@media(max-width:600px){.final-pm{opacity:.5;width:72px}}
.zh{font-size:.95em;font-weight:600;opacity:.85;margin-left:4px}
.eyebrow .zh::before{content:"\00b7";margin-right:8px}
.phead .eyebrow{margin-top:4px}
.phead .crumbs+.eyebrow{margin-top:14px}
/* hero envelope + delivered postmark */
.arcsvg .envg{pointer-events:none}
.dlv{position:absolute;width:74px;height:74px;display:grid;place-items:center;border:3px double var(--acc-d);border-radius:50%;color:var(--acc-d);font-weight:800;font-size:var(--t-xs);letter-spacing:.1em;text-transform:uppercase;opacity:0;transform:translate(-50%,-135%) rotate(-12deg);pointer-events:none;background:rgba(10,19,32,.55);z-index:3}
.dlv.show{animation:inkstamp .55s cubic-bezier(.3,1.5,.5,1) both}
@keyframes inkstamp{from{opacity:0;transform:translate(-50%,-135%) rotate(-30deg) scale(1.8)}to{opacity:.95;transform:translate(-50%,-135%) rotate(-12deg) scale(1)}}
.rm .dlv.show{opacity:.95}
/* Cold email lane */
.lane{position:relative;display:flex;justify-content:space-between;align-items:stretch;gap:12px;margin-bottom:22px;padding:18px;border:1px dashed var(--stone);border-radius:22px;min-height:168px;margin-top:6px}
.tray{position:relative;width:38%;min-height:132px;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:2px}
.tray b{font-size:var(--t-md)}
.tray span{font-size:var(--t-sm);color:var(--mute-l)}
.tray.junk{background:#EDE8DF}
.tray.inbox{background:#E6F4EA;border:2px solid #9CCBA8}
.lane-pm{position:absolute;right:4px;top:-18px;width:72px;color:var(--btn);opacity:.9}
.lane-ctl{margin:-6px 0 20px}
.env-x{position:absolute;left:calc(19% - 26px);top:92px;width:52px;z-index:2;transition:transform 1.6s linear}
.env-y{transform:rotate(-8deg)}
.envi{display:block;width:52px;height:36px}
.lane.fly .env-x{transform:translateX(var(--dx,200px))}
.lane.fly .env-y{animation:hop 1.6s ease-in-out forwards}
@keyframes hop{0%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-44px) rotate(0)}100%{transform:translateY(0) rotate(6deg)}}
.lane .lane-pm{opacity:0;transform:rotate(-10deg) scale(1.7)}
.lane.done .lane-pm{opacity:.9;transform:rotate(-10deg);transition:opacity .25s,transform .5s cubic-bezier(.3,1.5,.5,1)}
.rm .lane .lane-pm{opacity:.9;transform:rotate(-10deg)}

.mk-new .vis{position:absolute;right:14px;top:56px;width:34%;height:112px;border-radius:14px;background:var(--ink);color:#fff;padding:10px;font-weight:700;font-size:11px;line-height:1.3}
.mk-new .vis i{display:block;margin-top:8px;height:8px;border-radius:4px;background:rgba(255,255,255,.35);font-style:normal}
main,footer.site{overflow-x:clip}
.sec,.tight,.final,.phead,.hero{overflow-x:clip}
.pm.hero-pm{width:clamp(80px,14vw,130px)}
@media(max-width:600px){.pm.hero-pm{top:-6px;right:58px}}
.env-x{top:auto;bottom:18px}.tray{min-height:150px}.lane{min-height:186px}
.frame-pm{opacity:.45;top:auto;bottom:10px}

/* ---------- Chinese (zh-Hans) pages: one sans family, system Chinese stack ---------- */
html[lang="zh-Hans"]{--font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif}
html[lang="zh-Hans"] body{line-height:1.7}
html[lang="zh-Hans"] h1,html[lang="zh-Hans"] h2,html[lang="zh-Hans"] h3,html[lang="zh-Hans"] h4,html[lang="zh-Hans"] .h1,html[lang="zh-Hans"] .h2,html[lang="zh-Hans"] .h3,html[lang="zh-Hans"] .scrub,html[lang="zh-Hans"] .price,html[lang="zh-Hans"] .sc .word,html[lang="zh-Hans"] .big-mail,html[lang="zh-Hans"] .sumbar,html[lang="zh-Hans"] .final h2,html[lang="zh-Hans"] .ab-page h4,html[lang="zh-Hans"] .mk-new .hh,html[lang="zh-Hans"] .sv-card h3,html[lang="zh-Hans"] .ov h2,html[lang="zh-Hans"] .prose h2{letter-spacing:0}
html[lang="zh-Hans"] h1,html[lang="zh-Hans"] .h1{line-height:1.18}
html[lang="zh-Hans"] h2,html[lang="zh-Hans"] .h2,html[lang="zh-Hans"] .scrub,html[lang="zh-Hans"] .final h2{line-height:1.28}
html[lang="zh-Hans"] .sc .word{line-height:1.05;letter-spacing:.02em}
html[lang="zh-Hans"] .eyebrow,html[lang="zh-Hans"] .example,html[lang="zh-Hans"] .ba-tag,html[lang="zh-Hans"] .worldtag,html[lang="zh-Hans"] .sv-card .num,html[lang="zh-Hans"] .sc .num,html[lang="zh-Hans"] footer.site h2{letter-spacing:.02em;text-transform:none}
html[lang="zh-Hans"] .dlv{letter-spacing:0;font-size:var(--t-xs);text-transform:none}
html[lang="zh-Hans"] .lede,html[lang="zh-Hans"] .sec-sub,html[lang="zh-Hans"] .hero .lede,html[lang="zh-Hans"] .problem .after,html[lang="zh-Hans"] .sc p,html[lang="zh-Hans"] .how p,html[lang="zh-Hans"] .final p,html[lang="zh-Hans"] .prose-lg p,html[lang="zh-Hans"] .cta-box p,html[lang="zh-Hans"] .mk-new .sb,html[lang="zh-Hans"] .ab-page p{max-width:32em}
html[lang="zh-Hans"] .sec-h{max-width:18em}
html[lang="zh-Hans"] .scrub{max-width:17em}
html[lang="zh-Hans"] .final h2{max-width:13em}
html[lang="zh-Hans"] .phead h1{max-width:14em}
html[lang="zh-Hans"] .mk-new .hh{max-width:11em}
html[lang="zh-Hans"] .ab-page h4{max-width:13em}
html[lang="zh-Hans"] .mk-old,html[lang="zh-Hans"] .mk-new{font-family:var(--font)}
/* EN / 中文 switch in the nav (both languages) */
.langsw{display:flex;align-items:center;margin:4px 0 0}
.langsw>*{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:36px;padding:0 12px;border-radius:999px;font-size:var(--t-sm);font-weight:700;text-decoration:none}
.langsw .cur{background:var(--ink);color:var(--paper)}
nav.main .langsw a{width:auto;padding:0 12px;display:inline-flex}
.langsw{border:1px solid rgba(15,27,45,.2);border-radius:999px;padding:2px;width:max-content}
@media(min-width:960px){.langsw{margin:0 0 0 8px}}
/* zh: pilot price strip, starting-point cards */
.pricebar{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;margin:0 0 6px}
.badge{display:inline-block;font-size:var(--t-xs);font-weight:700;padding:3px 10px;border-radius:999px;background:var(--btn);color:#fff;margin-left:8px;vertical-align:middle;letter-spacing:.02em}
.xsec ul.bul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px;max-width:62ch}
.xsec ul.bul li{position:relative;padding-left:26px}
.xsec ul.bul li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:50%;background:var(--btn)}
html[lang="zh-Hans"] .xsec ul.bul{max-width:40em}
.xsec{scroll-margin-top:96px}
.ov h3{font-size:var(--t-lg);margin:12px 0 10px;letter-spacing:-.03em}
html[lang="zh-Hans"] .ov h3{letter-spacing:0}
.ov a.sv .badge{background:var(--acc-d);color:var(--ink)}
html[lang="zh-Hans"] h1,html[lang="zh-Hans"] h2,html[lang="zh-Hans"] h3,html[lang="zh-Hans"] .scrub{text-wrap:balance}
html[lang="zh-Hans"] p,html[lang="zh-Hans"] li{text-wrap:pretty}
html[lang="zh-Hans"] .h1{font-size:var(--t-xl)}
html[lang="zh-Hans"] .h2{font-size:var(--t-h2)}
.ln{display:inline-block}
/* critique 2026-10-22: contrast + balanced headings + two-button final */
.machine .muted,footer.site .muted{color:var(--mute-d)}
h1,h2,h3,.h1,.h2,.scrub{text-wrap:balance}
.final .btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.final .btn.ghost-l{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.final .btn.ghost-l .ic{background:#fff;color:var(--btn)}
.final .reassure{margin:22px auto 0;font-size:var(--t-base);opacity:.92}
/* proof: demo sites + sample email */
.works{list-style:none;margin:0;padding:0;display:grid;gap:20px}
@media(min-width:760px){.works{grid-template-columns:repeat(3,1fr);gap:24px}}
.work{display:block;text-decoration:none;color:inherit;border-radius:24px}
.work .shot{position:relative;display:block;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--alt);box-shadow:0 12px 30px rgba(15,27,45,.10);aspect-ratio:16/10;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.work img{display:block;width:100%;height:100%;object-fit:cover;object-position:top}
.work .example{position:absolute;left:12px;top:12px}
.work .wt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 4px 0}
.work .wt b{display:block;font-size:var(--t-md);letter-spacing:-.02em}
.work .wm{display:block;color:var(--mute-l);font-size:var(--t-sm);margin-top:2px}
.work .ic{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--btn);color:#fff;flex:none;transition:transform .2s var(--ease)}
.work:hover .shot{transform:translateY(-4px);box-shadow:0 20px 40px rgba(15,27,45,.16)}
.work:hover .ic{transform:translateX(3px)}
.work:focus-visible{outline:3px solid var(--btn);outline-offset:6px}
.work .shot.fb,.work.all .shot{display:grid;place-items:center;padding:20px;text-align:center;background:var(--ink);color:var(--paper);border:0}
.work .shot.fb b,.work.all .shot b{font-size:var(--t-lg);letter-spacing:-.03em;line-height:1.15}
.work.all .shot{background:var(--btn)}
.chk-home .chk-l{margin:0 0 8px;font-weight:700;font-size:var(--t-sm);color:var(--paper)}
.chk-home .dform+.chk-l{margin-top:22px}
.mrow{display:grid;gap:32px;margin-top:clamp(56px,8vw,96px);align-items:center}
@media(min-width:900px){.mrow{grid-template-columns:1fr 1.15fr;gap:56px}}
.mrow-h{font-size:var(--t-h3);max-width:16ch}
.mpair{position:relative}
.mm{background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(20px,3vw,30px);box-shadow:0 12px 30px rgba(15,27,45,.08);font-size:var(--t-sm)}
.mm p{margin:0 0 10px}.mm p:last-child{margin:0}
.mm-h{display:grid;gap:4px;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line);font-size:var(--t-sm);color:var(--mute-l)}
.mm-h b{display:inline-block;width:5.2em;color:var(--ink)}
.mr{background:var(--ink);color:var(--paper);border-radius:22px 22px 6px 22px;padding:16px 20px;margin:-18px 0 0 auto;width:min(88%,420px);position:relative;box-shadow:0 14px 34px rgba(10,19,32,.22)}
.mr p{margin:6px 0 0}
.mr-h{font-size:var(--t-xs);font-weight:700;color:var(--mute-d)}
.mpair .cap{font-size:var(--t-sm);color:var(--mute-l);margin:14px 0 0}
/* mobile language switch + carousel hints */
.lang-m{margin-left:auto;font-weight:700;text-decoration:none;color:var(--ink);padding:10px 12px;border-radius:999px}
.lang-m:hover{background:var(--alt)}
@media(min-width:960px){.lang-m{display:none}}
.hint-m{display:none}
.swipe-on .hint-m{display:inline}.swipe-on .hint-d{display:none}
.frame .muted{color:var(--mute-d)}
#h-pilot{font-size:var(--t-h3);letter-spacing:-.02em;margin:0}
@media(max-width:620px){.tl caption{display:block;width:auto}}
/* header hides on scroll down so it never covers headings */
header.site{transition:transform .35s var(--ease)}
header.site.hide{transform:translateY(calc(-100% - 16px))}

/* ---- Spanish section (/es/): additive rules only, same tokens ---- */
.lang-m2{margin-left:0}
html[lang="es"] h1,html[lang="es"] h2,html[lang="es"] h3,html[lang="es"] .price,html[lang="es"] .scrub{overflow-wrap:break-word;hyphens:auto}
a.chip{text-decoration:none}
.bgrid{display:grid;gap:28px}
@media(min-width:960px){.bgrid{grid-template-columns:1.35fr 1fr;gap:48px;align-items:start}}
.bstep{border:1px solid var(--line);background:#fff;border-radius:24px;padding:22px 24px;margin:0 0 18px;min-width:0}
.bstep legend{display:flex;align-items:center;gap:12px;font-weight:800;font-size:var(--t-md);letter-spacing:-.02em;padding:0 6px;margin-left:-6px}
.bstep legend .bn{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--btn);color:#fff;font-size:var(--t-sm);flex:none}
.bstep .chips{margin-top:14px}
.bstep .hint{margin:12px 0 0}
.fm select{width:100%;padding:14px 18px;border-radius:18px;border:2px solid var(--ink);background:#fff;font-size:var(--t-base)}
.fm .chk{display:flex;gap:12px;align-items:flex-start;font-weight:600}
.fm .chk input{width:22px;height:22px;margin-top:2px;flex:none;accent-color:var(--btn)}
.fm .chk label{margin:0;font-weight:600}
.est{position:static}
@media(min-width:960px){.est{position:sticky;top:96px}}
.est h2{font-size:var(--t-lg);margin-bottom:10px}
.est ul.el{margin:14px 0 0}
.est ul.el li{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-top:1px solid rgba(246,243,238,.16);font-size:var(--t-sm)}
.est ul.el li b{white-space:nowrap}
.est .tot{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-top:14px;font-weight:800;font-size:var(--t-md)}
.est .tot b{font-size:var(--t-h3);letter-spacing:-.03em}
.est .note{color:var(--mute-d);font-size:var(--t-sm);margin:12px 0 0}
.est .fd{background:rgba(246,243,238,.08);border-radius:18px;padding:12px 14px;margin-top:14px;font-size:var(--t-sm);color:var(--paper)}
.sumbox{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;margin-top:18px;max-width:760px}
.sumbox ul{display:grid;gap:6px;margin:10px 0 0}
.sumbox li{display:flex;justify-content:space-between;gap:16px}
.sumbox pre{white-space:pre-wrap;word-break:break-word;font:inherit;margin:0;color:#2A3444}
.soonlist li{opacity:.85}
.pk{display:flex;flex-direction:column}
.pk .price{margin:8px 0 4px}
.pk .per{color:var(--mute-l);font-size:var(--t-sm);margin:0 0 14px}
.pk .tick{margin-bottom:14px}
.pk .nt{margin-top:auto;color:var(--mute-l);font-size:var(--t-sm)}
html[lang="es"] nav.main a,html[lang="es"] nav.main .langsw>*{white-space:nowrap}
.pk{color:var(--ink)}
.lang-m{white-space:nowrap;padding-inline:8px}
/* tools we set up (type, not logos) */
.tools{margin-top:clamp(40px,6vw,64px);padding-top:28px;border-top:1px solid var(--line)}
.tools-h{font-size:var(--t-sm);font-weight:600;color:var(--mute-l);margin:0 0 14px}
.tools ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 32px}
.tools li{font-size:var(--t-md);font-weight:800;letter-spacing:-.03em;line-height:1.2;color:#5B6270}
.tools-n{font-size:var(--t-xs);color:var(--mute-l);margin:16px 0 0}

.lst-lang{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:-6px 0 16px}
.lst-lang[hidden]{display:none}
.lst-lang span{font-weight:700;font-size:var(--t-sm);margin-right:4px}
.lst-card{min-height:0}
.ab-page.lst-card h4{font-size:var(--t-md);letter-spacing:-.02em;max-width:none;line-height:1.25;margin-bottom:14px}
.lst-l{font-size:var(--t-xs);font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--mute-l);margin:0 0 6px;max-width:none}
.ab-page.lst-card p.lst-l{max-width:none}
.lst-card ul{display:grid;gap:8px;margin:0 0 16px;padding-left:1.1em;list-style:disc;font-size:var(--t-sm);max-width:62ch}
.lst-k{font-size:var(--t-sm);font-style:italic;margin:0;max-width:62ch}
.lst-n{margin-top:14px;font-weight:600;max-width:62ch}

/* Real client project card */
.dtr{display:grid;gap:20px;margin-bottom:32px;align-items:center}
@media(min-width:760px){.dtr{grid-template-columns:1.25fr 1fr;gap:36px}}
.dtr .shot{position:relative;display:block;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--alt);box-shadow:0 12px 30px rgba(15,27,45,.10);aspect-ratio:16/10}
.dtr .shot img,.dtr .shot video{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover}
.dtr .real{position:absolute;left:12px;top:12px;font-size:var(--t-xs);font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:999px;background:#D7F0DF;color:#0F4A27;border:1px solid #7CC194}
html[lang="zh-Hans"] .dtr .real{letter-spacing:.02em;text-transform:none}
.dtr-built{margin:0 0 6px;color:var(--mute-l);font-size:var(--t-sm)}
.dtr-h{margin:0 0 10px;font-size:var(--t-lg,var(--t-md));letter-spacing:-.02em}
.dtr-p{margin:0 0 16px;max-width:46ch}
.dtr-job{margin:0 0 18px}
@media(prefers-reduced-motion:reduce){.dtr .shot video{display:none}}

/* v4 (ES): two doors, price lists, guides */
.hero.two .wrap{display:block}
.hero.two .lede{max-width:56ch}
.doors{display:grid;gap:18px;margin-top:clamp(32px,5vw,52px)}
@media(min-width:800px){.doors{grid-template-columns:1fr 1fr}}
.door{display:flex;flex-direction:column;background:rgba(246,243,238,.07);border:1px solid rgba(246,243,238,.22);border-radius:28px;padding:clamp(22px,3vw,34px);color:var(--paper)}
.door .num{color:var(--acc-d);font-weight:700;font-size:var(--t-sm);letter-spacing:.06em}
.door h2{font-size:var(--t-h3);letter-spacing:-.03em;line-height:1.05;margin:10px 0 12px}
.door p{color:var(--mute-d);margin:0 0 16px;max-width:46ch}
.door ul.dl{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:2px}
.door ul.dl a{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid rgba(246,243,238,.16);text-decoration:none;color:var(--paper);font-weight:600}
.door ul.dl a:hover{text-decoration:underline}
.door ul.dl span{color:var(--mute-d);font-weight:500;white-space:nowrap}
.door .from{font-weight:800;font-size:var(--t-md);margin:auto 0 14px}
.door .btns{margin-top:0}
.plist{list-style:none;margin:0;padding:0}
.plist li{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line)}
.plist b{white-space:nowrap;text-align:right}
.promise{background:var(--ink);color:var(--paper);border-radius:28px;padding:clamp(24px,3.4vw,42px);--fc:#F6F3EE}
.promise h2,.promise h3{color:var(--paper);margin-bottom:12px}
.promise p{color:var(--mute-d);max-width:62ch}
.promise .tick li{border-color:rgba(246,243,238,.16);color:var(--paper)}
.chips a.chip{text-decoration:none}
.toc{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 26px;margin:0 0 36px;max-width:760px}
.toc p{font-weight:800;margin:0 0 10px}
.toc ol{margin:0;padding-left:22px;display:grid;gap:6px}
.toc a{color:var(--btn);font-weight:600}
.prose h3{font-size:var(--t-md);margin:24px 0 6px;letter-spacing:-.02em}
.prose .tl{margin:18px 0 22px}
.prose .tl th[scope=row]{white-space:normal;width:36%;color:var(--ink)}
.prose .tl td{color:#2A3444}
.prose ol{padding-left:22px}
.prose li{margin-bottom:6px}
.prose .note{background:#FFF6D6;border:1px solid #E6D08A;border-radius:18px;padding:14px 18px;color:#4A3600}
.fgrid.f5{grid-template-columns:1fr}
@media(min-width:800px){.fgrid.f5{grid-template-columns:1.3fr 1.1fr 1.1fr 1fr .5fr}}
.related{margin-top:8px}
.dark .get li{color:var(--ink)}
.dark .get h3{color:var(--ink)}
.dark .get p{color:var(--mute-l)}
.dark .card{color:var(--ink)}
.dark .card .tl th[scope=row]{color:var(--btn)}
@media(max-width:620px){.prose .tl th[scope=row]{width:auto}}

/* EN v4: two-group services menu, price notes */
.ddm .ddh{font-weight:800;font-size:var(--t-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--mute-l);padding:10px 16px 4px;list-style:none;break-after:avoid}
.ddm.two li{break-inside:avoid}
@media(min-width:960px){
  .ddm.two{min-width:540px;column-count:2;column-gap:12px}
  .ddm .ddh2{break-before:column}
}
@media(max-width:959px){.ddm .ddh2{margin-top:6px}}
.usd{color:var(--mute-l);font-weight:500;font-size:.88em;white-space:nowrap}
.sec.dark .usd,.promise .usd{color:var(--mute-d)}

/* Standard services grid (.ov): equal-height cards, nothing moves on hover */
.ov{align-items:stretch;grid-auto-rows:1fr;list-style:none;padding:0;margin:0}
.ov>li{display:flex;min-width:0}
.ov a.sv{flex:1 1 auto;width:100%;min-height:280px;transition:background-color .15s,box-shadow .15s;transform:none}
.ov a.sv:hover{background:var(--ink3);transform:none;box-shadow:0 14px 34px rgba(10,19,32,.3)}
.ov a.sv>p{margin:0 0 18px}
.ov a.sv .tags{margin-top:auto;margin-bottom:16px}
.ov a.sv .arrow-link{margin-top:auto;display:flex;justify-content:space-between;align-items:center;color:var(--paper)}
.ov a.sv .tags+.arrow-link{margin-top:0}
.ov a.sv>p:last-of-type + .arrow-link{margin-top:auto}
/* 中文 keeps the original carousel card size */
html[lang^=zh] .arc{height:430px}
html[lang^=zh] .sv-card{width:270px;height:340px;margin-left:-135px}
/* 中文 "four things" section: one row of 4 on desktop, 2x2 on tablet, no orphan card */
@media(min-width:1100px){section[aria-labelledby="h-start"] .ov{grid-template-columns:repeat(4,1fr)}}
section[aria-labelledby="h-start"] .ov a.sv{min-height:0;padding:26px}
/* 中文 work: 4 real sites in one row, compact, no lift on hover */
@media(min-width:1100px){.works.works4{grid-template-columns:repeat(4,1fr);gap:18px}}
@media(min-width:760px) and (max-width:1099px){.works.works4{grid-template-columns:repeat(2,1fr)}}
.works4 .shot{aspect-ratio:4/3}
.works4 .shot img{width:100%;height:100%;object-fit:cover;display:block}
.works4 .work:hover .shot{transform:none}
/* 中文 "four things": horizontal swipe on mobile */
@media(max-width:759px){
section[aria-labelledby="h-start"] .ov{grid-auto-flow:column;grid-auto-columns:82%;grid-template-columns:none;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin:0 -20px;padding:4px 20px 12px;scroll-padding:0 20px}
section[aria-labelledby="h-start"] .ov::-webkit-scrollbar{display:none}
section[aria-labelledby="h-start"] .ov>li{scroll-snap-align:start}
}