:root{
  --blue:#007BFF; --amber:#F7BE00; --red:#D92D20;
  --indigo:#0D0021; --ink:#05010D; --white:#FFFFFF; --black:#000000;
  --carbon:#333333; --slate:#595959; --steel:#737373; --silver:#CFCFCF; --linen:#FAF8F7;
  --dline:rgba(255,255,255,.08); --dtext:#CFCFCF;
  --sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  --serif:"EB Garamond", "Cormorant Garamond", Georgia, serif;
  --sh:0 0 0 1px rgba(0,0,0,.04),0 1px 1px .5px rgba(0,0,0,.02),0 3px 3px 1.5px rgba(0,0,0,.02),0 6px 6px -3px rgba(0,0,0,.02),0 12px 12px -6px rgba(0,0,0,.02),0 24px 24px -12px rgba(0,0,0,.02);
  --sh-nav:0 1px 1px .5px rgba(0,0,0,.03),0 3px 3px 1.5px rgba(0,0,0,.03),0 6px 6px -3px rgba(0,0,0,.03),0 12px 12px -6px rgba(0,0,0,.03),0 24px 24px -12px rgba(0,0,0,.03);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--black);font-family:var(--sans);font-size:16px;line-height:1.5;letter-spacing:-.006em;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--indigo)}
a{color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:999px}
h1,h2,h3{margin:0;font-weight:700;text-wrap:balance}
p{margin:0}
.gut{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.w{max-width:1200px;margin:0 auto}
.display{font-size:clamp(38px,5.6vw,64px);line-height:1;letter-spacing:-.025em}
.h2{font-size:clamp(30px,4vw,48px);line-height:1.04;letter-spacing:-.025em}
.sub{font-size:17px;line-height:1.5;letter-spacing:-.01em;color:var(--carbon);max-width:58ch}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font:inherit;font-size:15px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;letter-spacing:-.005em}
.b-blue{background:var(--blue);color:#fff}
.b-amber{background:var(--amber);color:#000}
.b-ghost{background:transparent;color:#000;border-color:rgba(0,0,0,.5)}
.b-dghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}

/* announcement */
.ann{background:var(--indigo);color:#fff;font-size:13px;font-weight:500;text-align:center;padding-block:9px}
.ann a{color:#fff;text-underline-offset:3px;margin-left:6px;opacity:.85}
.ann span{display:inline-flex;align-items:center;gap:8px}

/* nav pill */
.navwrap{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;padding-block:12px}
.nav{max-width:860px;margin:0 auto;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(0,0,0,.06);border-radius:999px;box-shadow:var(--sh-nav);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 7px 7px 18px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;letter-spacing:-.02em;text-decoration:none}
.links{display:flex;gap:22px;font-size:15px;font-weight:500}
.links a{text-decoration:none;color:#000}
.links a:hover{color:var(--blue)}
.nav .b-ghost{min-height:40px;padding:0 16px}
@media (max-width:760px){.links{display:none}}


/* live agent stage */
.live{background:var(--linen);border-radius:28px;padding:clamp(18px,3vw,36px);box-shadow:var(--sh);display:grid;gap:24px}
.lv-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.lv-z{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--slate)}
.lv-z::before{content:"";width:8px;height:8px;border-radius:9px;background:var(--zc,#000)}
.lv-top h3{font-size:clamp(26px,3vw,36px);letter-spacing:-.025em;line-height:1.05;margin-top:4px}
.lv-top p{color:var(--carbon);font-size:17px;margin-top:4px}
.lv-pp{flex:none;width:44px;height:44px;border-radius:99px;border:1px solid var(--silver);background:#fff;cursor:pointer;display:grid;place-items:center;color:#000}
.lv-stage{display:grid;grid-template-columns:minmax(0,1fr) 70px minmax(0,1.2fr) 70px minmax(0,1fr);align-items:center;min-height:440px}
.lv-col{display:grid;justify-items:center;gap:14px;align-content:center;min-height:420px}
.lv-lab{font-size:12px;font-weight:600;color:var(--steel);text-transform:uppercase;letter-spacing:.06em}
/* trigger */
.trg{width:100%;max-width:240px;background:#fff;border-radius:22px;padding:22px 18px;box-shadow:var(--sh),0 16px 36px rgba(0,0,0,.05);display:grid;justify-items:center;text-align:center;gap:8px;opacity:0;transform:translateX(-30px) scale(.95);transition:all .6s cubic-bezier(.2,.9,.2,1)}
.trg.on{opacity:1;transform:none}
.trg-ic{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;color:#fff;background:var(--zc,#000)}
.trg.on .trg-ic{animation:buzz .5s 3 .3s}
@keyframes buzz{0%,100%{transform:rotate(0)}25%{transform:rotate(-9deg)}75%{transform:rotate(9deg)}}
.trg b{font-size:17px;letter-spacing:-.015em;line-height:1.25}
.trg small{font-size:13px;color:var(--steel)}
/* wires */
.wire{position:relative;height:2px;background:repeating-linear-gradient(90deg,#DAD7D3 0 6px,transparent 6px 12px)}
.wire i{position:absolute;top:50%;left:0;width:14px;height:14px;margin-top:-7px;border-radius:99px;background:var(--zc,#007BFF);box-shadow:0 0 0 6px color-mix(in srgb,var(--zc,#007BFF) 20%,transparent);opacity:0}
.wire.go i{animation:run .7s cubic-bezier(.5,0,.5,1) forwards}
@keyframes run{0%{left:0;opacity:1}90%{opacity:1}100%{left:calc(100% - 14px);opacity:0}}
/* agent bot */
.bot{position:relative;width:132px;height:132px;border-radius:99px;background:#fff;box-shadow:var(--sh),0 20px 40px rgba(0,0,0,.06);display:grid;place-items:center;transition:transform .4s}
.bot span{width:96px;height:96px;border-radius:99px;background:var(--zc,#000);color:#fff;display:grid;place-items:center;font-weight:700;font-size:26px;letter-spacing:-.02em}
.bot .ring{position:absolute;inset:-8px;border-radius:99px;border:3px solid transparent;border-top-color:var(--zc,#000);border-right-color:var(--zc,#000);opacity:0;transition:opacity .3s}
.bot.work .ring{opacity:1;animation:spin 1s linear infinite}
.bot.work{transform:scale(1.04)}
@keyframes spin{to{transform:rotate(360deg)}}
.chips{list-style:none;margin:0;padding:0;display:grid;gap:8px;width:100%;max-width:300px;min-height:150px;align-content:start}
.chips li{background:#fff;border-radius:999px;padding:9px 14px 9px 10px;box-shadow:var(--sh);font-size:14px;font-weight:500;display:flex;gap:9px;align-items:center;animation:pop .45s cubic-bezier(.2,.9,.2,1)}
.chips li::before{content:"";flex:none;width:20px;height:20px;border-radius:99px;background:var(--zc,#007BFF) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2.2'/%3E%3C/svg%3E") center/13px no-repeat}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.92)}to{opacity:1;transform:none}}
/* mini phone */
.mph{width:220px;height:440px;border-radius:40px;background:#0E0E10;padding:8px;box-shadow:0 30px 40px rgba(0,0,0,.14),0 8px 18px rgba(0,0,0,.14)}
.mph-s{position:relative;height:100%;border-radius:33px;overflow:hidden;background:linear-gradient(180deg,#DCE6F5 0%,#EFE7F3 60%,#F6EFE6 100%)}
.mph-isl{position:absolute;top:8px;left:50%;width:76px;height:22px;margin-left:-38px;border-radius:99px;background:#000}
.mph-time{text-align:center;font-size:44px;font-weight:700;letter-spacing:-.03em;color:rgba(0,0,0,.75);margin-top:48px}
.note{position:absolute;left:8px;right:8px;top:118px;background:rgba(255,255,255,.92);border-radius:18px;padding:10px;display:flex;gap:8px;align-items:center;box-shadow:0 8px 24px rgba(0,0,0,.1);opacity:0;transform:translateY(-20px) scale(.95);transition:all .5s cubic-bezier(.2,.9,.2,1)}
.note.on{opacity:1;transform:none}
.note i{flex:none;width:28px;height:28px;border-radius:9px;background:var(--zc,#000);color:#fff;display:grid;place-items:center;font-style:normal;font-size:11px;font-weight:700}
.note b{font-size:12px;display:block;line-height:1.2}
.note small{font-size:11px;color:var(--slate);display:block;line-height:1.25}
.rcard{position:absolute;left:8px;right:8px;top:196px;background:#fff;border-radius:18px;padding:12px;display:grid;gap:8px;box-shadow:0 8px 24px rgba(0,0,0,.08);opacity:0;transform:translateY(16px);transition:all .5s cubic-bezier(.2,.9,.2,1)}
.rcard.on{opacity:1;transform:none}
.rcard .rt{font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.rcard.approve .rt{color:#7A5A00}
.rcard.done .rt{color:#0058B8}
.rcard b{font-size:13px;line-height:1.3;letter-spacing:-.01em}
.rbt{display:flex;gap:6px}
.rbt span{font-size:11px;font-weight:600;padding:6px 12px;border-radius:99px;background:#F0EFEE;color:#000;transition:all .3s}
.rbt .ap{background:#000;color:#fff}
.rbt .ap.ok{background:#1E9E5A}
.rcard.done .rbt{display:none}
.tap{position:absolute;width:34px;height:34px;border-radius:99px;background:rgba(0,0,0,.18);border:2px solid rgba(255,255,255,.9);left:40px;top:340px;opacity:0;pointer-events:none}
.tap.go{animation:tap 1s ease forwards}
@keyframes tap{0%{opacity:0;transform:translate(40px,60px)}45%{opacity:1;transform:none}60%{transform:scale(.8)}75%{transform:scale(1)}100%{opacity:0}}
/* strip */
.strip{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.strip button{position:relative;overflow:hidden;min-height:40px;padding:0 14px 0 6px;border-radius:999px;border:1px solid #E6E3E0;background:#fff;font:inherit;font-size:13px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:7px;color:#000}
.strip button i{width:28px;height:28px;border-radius:99px;display:grid;place-items:center;color:#fff;font-style:normal;font-size:10px;font-weight:700}
.strip button[aria-pressed="true"]{border-color:#000}
.strip button .pg{position:absolute;left:0;bottom:0;height:3px;width:0;background:#000}
.strip button[aria-pressed="true"] .pg{animation:pg linear forwards}
@keyframes pg{to{width:100%}}
@media (max-width:900px){
  .lv-stage{grid-template-columns:minmax(0,1fr);min-height:0;gap:6px}
  .wire{width:2px;height:34px;margin:0 auto;background:repeating-linear-gradient(180deg,#DAD7D3 0 6px,transparent 6px 12px)}
  .wire i{left:50%;margin-left:-7px;top:0;margin-top:0}
  .wire.go i{animation:runv .7s cubic-bezier(.5,0,.5,1) forwards}
  @keyframes runv{0%{top:0;opacity:1}100%{top:calc(100% - 14px);opacity:0}}
  .lv-col{min-height:0}
  .chips{min-height:0}
  .strip button span.nm{display:none}
  .strip button{padding:0 6px}
}

/* blog */
.crumbs{font-size:13px;color:var(--steel);display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--steel);text-decoration:none}.crumbs a:hover{color:var(--blue)}
.post-hero{padding-block:48px 28px}
.post-hero .w,.post .w{max-width:780px}
.post-hero h1{font-size:clamp(34px,4.6vw,52px);line-height:1.04;letter-spacing:-.025em;margin-top:14px}
.post-hero .dek{font-size:19px;color:var(--carbon);margin-top:16px;max-width:62ch}
.meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--steel);margin-top:18px}
.post{padding-bottom:40px}
.post article{font-size:18px;line-height:1.7;color:#1d1d1f}
.post article>*+*{margin-top:1.1em}
.post article h2{font-size:clamp(26px,3vw,32px);line-height:1.15;letter-spacing:-.02em;margin-top:1.8em}
.post article h3{font-size:21px;margin-top:1.4em}
.post article a{color:var(--blue);text-underline-offset:3px}
.post article ul,.post article ol{padding-left:1.3em}
.post article li+li{margin-top:.4em}
.post article blockquote{margin:1.4em 0;padding:16px 20px;border-radius:16px;background:var(--linen);font-size:17px}
.callout{background:var(--linen);border-radius:20px;padding:20px 22px;box-shadow:var(--sh)}
.callout b{display:block;margin-bottom:6px}
.wide{max-width:1100px;margin:28px auto}
.anim-cap{font-size:13px;color:var(--steel);text-align:center;margin-top:10px}
.toc{background:#fff;border-radius:16px;box-shadow:var(--sh);padding:16px 20px;font-size:15px}
.toc ol{margin:8px 0 0;padding-left:1.2em}
.toc a{color:#000;text-decoration:none}.toc a:hover{color:var(--blue)}
.cta-box{background:var(--indigo);color:#fff;border-radius:24px;padding:28px;display:grid;gap:12px;margin:2em 0}
.cta-box p{color:var(--dtext);font-size:16px}
.cta-box .btn{justify-self:start}
.related{padding-block:40px 80px;background:var(--linen)}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}@media (max-width:900px){.cards{grid-template-columns:minmax(0,1fr)}}
.pcard{background:#fff;border-radius:20px;box-shadow:var(--sh);padding:22px;display:grid;gap:10px;text-decoration:none;color:#000;align-content:start;transition:transform .2s}
.pcard:hover{transform:translateY(-3px)}
.pcard .tg{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.02em}
.pcard h3{font-size:20px;letter-spacing:-.02em;line-height:1.2}
.pcard p{font-size:15px;color:var(--carbon)}
.blog-head{padding-block:56px 32px;text-align:center}
.blog-head .w{display:grid;gap:14px;justify-items:center}
footer{background:#fff;color:var(--steel);border-top:1px solid #EFEDEC;font-size:13px;padding-block:28px}
footer .w{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:inherit}
.eb{font-size:13px;font-weight:600;color:var(--blue)}
.h2{font-size:clamp(30px,4vw,48px);line-height:1.04;letter-spacing:-.025em}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}