:root{
  --ink:#0d0f14; --ink-2:#161a22; --cream:#fbfaf7; --paper:#fff;
  --body:#464e5c; --muted:#8a92a2; --line:#e6e3dc;
  --amber:#f2a63b; --amber-d:#c97f1c; --amber-bg:#fdf4e5; --amber-line:#f3e2c4;
  --teal:#1f9e8f; --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--cream) url("background-paper.jpg") center top/1600px auto repeat-y;color:var(--body);
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,-apple-system,sans-serif;
  font-size:17.5px; line-height:1.8; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
.wrap{max-width:1060px;margin:0 auto;padding:0 28px}
.narrow{max-width:860px;margin:0 auto;padding:0 28px}
a{color:inherit}
strong,b{color:var(--ink);font-weight:700}

.rv{opacity:0;transform:translateY(28px) scale(.985);transition:opacity .72s cubic-bezier(.4,0,.2,1),transform .72s cubic-bezier(.4,0,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}.choice-diamond{animation:none!important}}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(13,15,20,.94);backdrop-filter:blur(14px);border-bottom:1px solid #232937}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;gap:20px}
.nav .brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.nav .brand img{width:34px;height:34px;border-radius:50%;flex:0 0 34px;display:block}
.nav .brand .bt{display:flex;flex-direction:column;line-height:1.2}
.nav .brand .bt b{color:#fff;font-weight:800;font-size:15.5px;letter-spacing:-.01em}
.nav .brand .bt small{color:#79839a;font-size:11.5px;font-weight:600}
.nav .links{display:flex;gap:22px;flex-wrap:wrap}
.nav .links a{color:#98a1b2;text-decoration:none;font-size:14.5px;font-weight:600;transition:color .16s}
.nav .links a:hover,.nav .links a.on{color:var(--amber)}

/* hero */
.hero{background:linear-gradient(90deg,rgba(10,12,16,.9),rgba(10,12,16,.76)),url("background-charcoal.jpg") center/cover;color:#e9ecf2;position:relative;overflow:hidden;padding:104px 0 92px}
.hero.sub{padding:76px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(13,15,20,.28),transparent 56%,rgba(88,55,23,.08));
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.18;
  background:linear-gradient(115deg,transparent 0 46%,rgba(255,255,255,.08) 46.1% 46.2%,transparent 46.3%);
}
.hero .wrap,.hero .narrow{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.82fr);gap:68px;align-items:center}
.hero-copy{min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.14em;
  color:var(--amber);text-transform:uppercase;font-weight:700;margin-bottom:24px}
.eyebrow i{width:22px;height:1.5px;background:var(--amber);display:block;font-style:normal}
.hero h1{font-size:clamp(31px,5.2vw,56px);line-height:1.2;letter-spacing:-.025em;
  color:#fff;font-weight:800;max-width:17ch;margin-bottom:24px}
.hero.sub h1{font-size:clamp(28px,4.4vw,44px);max-width:20ch}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero .lede{font-size:clamp(16.5px,2vw,19px);color:#a9b2c2;max-width:52ch;margin-bottom:38px}
.hero .price-tag{display:inline-block;font-size:15px;color:var(--amber);font-weight:700;
  border:1px solid #4a3a20;background:rgba(242,166,59,.09);border-radius:999px;padding:6px 18px;margin-bottom:26px}
.service-hero-layout{width:100%;max-width:1060px;min-height:390px;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr);gap:64px;align-items:center}
.service-hero-copy{min-width:0}.service-hero-copy .lede{margin-bottom:30px}.service-hero-copy .cta{width:auto}
.service-ui{position:relative;min-height:330px}.service-ui>*{position:relative;z-index:1}

/* AI customer service: a LINE-like phone conversation */
.chat-ui{width:min(310px,100%);min-height:390px;justify-self:center;display:flex;flex-direction:column;padding:12px 13px 17px;
  border:7px solid #242832;border-radius:38px;background:linear-gradient(160deg,#c7ded2,#a9cabb);color:#25302b;
  box-shadow:0 34px 75px rgba(0,0,0,.42);transform:rotate(-2.5deg)}
.phone-notch{align-self:center;width:88px;height:15px;margin:-3px 0 9px;border-radius:0 0 12px 12px;background:#242832}
.line-head{display:flex;align-items:center;gap:9px;margin:0 -2px 18px;padding:8px 4px 12px;border-bottom:1px solid rgba(27,54,42,.15)}
.line-head>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#26322d;color:#fff;font-size:10px;font-weight:900}.line-head>b{margin-right:auto;color:#26322d;font-size:11px;line-height:1.2}.line-head b small{display:block;color:#2f9c63;font-size:8px;margin-top:3px}.line-head em{color:#456055;font-style:normal;font-size:11px;letter-spacing:.1em}
.chat-line{max-width:86%;margin-bottom:13px;padding:11px 13px;border-radius:14px;font-size:11px;line-height:1.55;box-shadow:0 5px 14px rgba(32,60,48,.09)}
.chat-line.customer{align-self:flex-end;background:#7de36e;color:#18301b;border-bottom-right-radius:4px}.chat-line.bot{align-self:flex-start;background:#fff;color:#36413c;border-bottom-left-radius:4px}
.chat-line.bot small{display:block;margin-bottom:3px;color:#1d9562;font-weight:900}.chat-status{margin-top:auto;padding:10px;border-radius:9px;background:rgba(255,255,255,.45);color:#4b6258;font-size:9px;text-align:center}
.chat-status i{display:inline-block;width:7px;height:7px;margin-right:7px;border-radius:50%;background:#16a563;box-shadow:0 0 0 4px rgba(22,165,99,.1)}

/* n8n: an open node canvas */
.flow-ui{min-height:350px;padding:22px 20px;display:flex;flex-direction:column;border:1px solid #443457;border-radius:8px;
  background-color:#17131e;background-image:radial-gradient(#493d55 1px,transparent 1px);background-size:18px 18px;
  box-shadow:0 32px 70px rgba(0,0,0,.4);transform:rotate(1deg)}
.canvas-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px;padding:9px 11px;border-radius:7px;background:#241d2d}.canvas-head b{color:#f1eaf6;font-size:11px}.canvas-head span{color:#b5e8c6;font:800 8px/1 ui-monospace,SFMono-Regular,Consolas,monospace}.canvas-head i{display:inline-block;width:6px;height:6px;margin-right:5px;border-radius:50%;background:#50db85}
.flow-node{position:relative;width:70%;padding:11px 13px;border:1px solid #5c4a6b;border-radius:6px;background:#292132;box-shadow:0 8px 18px rgba(0,0,0,.2)}
.flow-node::before,.flow-node::after{content:"";position:absolute;top:50%;width:8px;height:8px;border-radius:50%;background:#ef7c45;transform:translateY(-50%)}.flow-node::before{left:-5px}.flow-node::after{right:-5px}
.flow-node small{display:block;color:#a795b4;font-size:8px;letter-spacing:.08em}.flow-node b{color:#fff;font-size:12px}.flow-node.core{margin-left:auto;border-color:#ef7c45;background:#34231f}.flow-arrow{margin:1px 0 1px 38%;color:#ef7c45;font-style:normal}
.flow-branches{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.flow-branches span{padding:10px;border:1px solid #5b4a68;border-radius:6px;background:#251f2d;color:#ddd2e5;font-size:10px;text-align:center}
.flow-status{margin-top:auto;padding-top:13px;color:#93859f;font-size:9px}.flow-status i{display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:50%;background:#50db85}

/* survey: bright, calm form UI */
.form-ui{min-height:350px;padding:27px 25px;display:flex;flex-direction:column;border:1px solid #cbd9ee;border-radius:20px;
  background:linear-gradient(145deg,#fff,#eef4ff);color:#27364e;box-shadow:0 32px 70px rgba(4,20,48,.28);transform:rotate(-1deg)}
.form-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.form-head span{font-size:11px;font-weight:800;color:#2f4160}.form-head b{color:#5b7fca;font:900 10px/1 ui-monospace,SFMono-Regular,Consolas,monospace}
.form-progress{height:6px;margin-bottom:28px;border-radius:9px;background:#dce5f4;overflow:hidden}.form-progress i{display:block;width:52%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#4778d6,#74a2ff)}
.form-label{color:#5677b6;font-size:9px;font-weight:800;letter-spacing:.08em}.form-ui>strong{margin:7px 0 17px;color:#20314c;font-size:15px;line-height:1.45}
.form-options{display:grid;gap:9px}.form-options span{padding:11px 12px;border:1px solid #ccd8ea;border-radius:9px;background:#fff;color:#60718b;font-size:10px}.form-options .selected{border-color:#5c86dc;background:#edf3ff;color:#274d98;box-shadow:inset 3px 0 #5c86dc}
.form-next{align-self:flex-end;margin-top:auto;padding:9px 15px;border-radius:9px;background:#4778d6;color:#fff;font-size:10px;font-weight:900}

/* quote: a warm paper document */
.quote-ui{min-height:365px;padding:28px 27px;color:#39332b;background:#f7f0e2;
  border-radius:2px;box-shadow:0 34px 70px rgba(0,0,0,.38);transform:rotate(2deg)}
.quote-ui::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:14px;background:linear-gradient(135deg,transparent 7px,#f7f0e2 0) 0 0/14px 14px repeat-x}
.receipt-head{display:grid;grid-template-columns:1fr auto;gap:3px;margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid #39332b}.receipt-head span{color:#bd5f4d;font:900 17px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.06em}.receipt-head b{color:#39332b;font-size:12px}.receipt-head small{grid-column:1/-1;color:#8b8174;font-size:8px}
.quote-input{margin-bottom:16px;padding:11px 12px;border-left:3px solid #bd5f4d;background:#eee3d1;color:#62594e;font-size:10px;line-height:1.5}
.quote-row,.quote-total{display:flex;align-items:center;justify-content:space-between;padding:10px 2px;border-bottom:1px dashed #b9ae9c;font-size:10px}.quote-row b{color:#39332b;font-size:10px}.quote-total{margin-top:9px;border:0}.quote-total span{color:#766d61}.quote-total strong{color:#bd5f4d;font-size:21px}

/* DIY: visibly compare a prototype with a production system */
.build-ui{min-height:330px;display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;overflow:visible}
.build-side{min-height:260px;padding:22px 17px;border-radius:16px;display:flex;flex-direction:column;box-shadow:0 25px 55px rgba(0,0,0,.3)}
.build-side small{font:900 9px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em}.build-side>b{margin:12px 0 24px;font-size:17px}.build-side span{margin-top:8px;padding-top:8px;border-top:1px solid;font-size:9px}
.build-side.prototype{background:#f0e8d9;color:#6f6659;transform:rotate(-3deg)}.build-side.prototype small{color:#a7762e}.build-side.prototype b{color:#443e35}.build-side.prototype span{border-color:#d6c8b2}
.build-side.production{background:#19332f;color:#a9c9c1;transform:rotate(2deg)}.build-side.production small{color:#66d5b8}.build-side.production b{color:#fff}.build-side.production span{border-color:#31544d}
.build-arrow{position:relative;z-index:3;display:grid;place-items:center;width:36px;height:36px;margin:0 -18px;border-radius:50%;background:var(--amber);color:#211507;font-style:normal;font-weight:900;box-shadow:0 8px 20px rgba(0,0,0,.25)}
.build-footer{grid-column:1/-1;margin-top:6px;color:var(--amber);font-size:10px;font-weight:800;text-align:center}

.cta{display:inline-block;background:var(--amber);color:#2a1a05;padding:15px 32px;border-radius:999px;
  font-weight:800;font-size:16px;text-decoration:none;transition:transform .18s,box-shadow .18s;
  box-shadow:0 6px 22px rgba(242,166,59,.26)}
.cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(242,166,59,.36)}
.cta-ghost{display:inline-block;border:1px solid #3d4657;padding:14px 28px;border-radius:999px;
  color:#c3cad6;text-decoration:none;font-weight:700;font-size:15.5px;transition:all .18s}
.cta-sub{display:block;margin-top:15px;font-size:14px;color:#79839a}
.cta-line{display:inline-block;background:#06c755;color:#fff;padding:15px 32px;border-radius:999px;
  font-weight:800;font-size:16px;text-decoration:none;transition:transform .18s,box-shadow .18s;
  box-shadow:0 6px 22px rgba(6,199,85,.24)}
.cta-line:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(6,199,85,.34)}
.cta-pair{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.hero-showcase{position:relative;display:block;text-decoration:none;color:inherit;background:#11151d;
  border:1px solid #343d4f;border-radius:20px;overflow:hidden;transform:rotate(1.5deg);
  box-shadow:0 30px 70px rgba(0,0,0,.38),0 0 0 1px rgba(255,255,255,.025) inset;
  transition:transform .25s,box-shadow .25s,border-color .25s}
.hero-showcase:hover{transform:rotate(0) translateY(-5px);border-color:#5a4930;box-shadow:0 38px 85px rgba(0,0,0,.46)}
.showcase-bar{height:36px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;
  color:#6f7889;font-size:11.5px;font-weight:700;letter-spacing:.04em;border-bottom:1px solid #252c39}
.showcase-dots{display:flex;gap:5px}.showcase-dots i{display:block;width:7px;height:7px;border-radius:50%;background:#465064}
.showcase-dots i:first-child{background:var(--amber)}.showcase-dots i:nth-child(2){background:#3eaa9b}
.showcase-image{height:210px;position:relative;overflow:hidden;background:#252a34}
.showcase-image img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.hero-showcase:hover .showcase-image img{transform:scale(1.035)}
.live-badge{position:absolute;left:14px;bottom:14px;display:inline-flex;align-items:center;gap:7px;
  background:rgba(12,16,22,.86);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.16);
  color:#fff;border-radius:999px;padding:6px 11px;font-size:12px;font-weight:800}
.live-badge i{width:7px;height:7px;border-radius:50%;background:#42d67d;box-shadow:0 0 0 4px rgba(66,214,125,.13)}
.showcase-body{padding:20px 22px 23px;display:grid;gap:2px}
.showcase-body>span{color:var(--amber);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.showcase-body strong{color:#fff;font-size:21px;letter-spacing:-.02em}
.showcase-body p{font-size:13.5px;color:#8993a5;line-height:1.5}
.hero-showcase::after{content:"網站 + AI";position:absolute;right:-16px;top:62px;transform:rotate(90deg);
  color:rgba(255,255,255,.35);font-size:9px;font-weight:800;letter-spacing:.18em}

/* fit strip */
.fit{background:linear-gradient(rgba(18,22,29,.9),rgba(18,22,29,.94)),url("background-charcoal.jpg") center 72%/cover;color:#c3cad6;padding:44px 0;border-top:1px solid #232937}
.fit h3{font-size:14px;letter-spacing:.1em;color:var(--amber);text-transform:uppercase;margin-bottom:22px;font-weight:700}
.fit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:16px}
.fit-item{background:rgba(255,255,255,.035);border:1px solid #262d3c;border-radius:10px;padding:16px 18px;font-size:15px;line-height:1.65;position:relative}
.fit-item::before{content:"";display:block;width:22px;height:3px;border-radius:99px;background:linear-gradient(90deg,var(--amber),var(--teal));margin-bottom:11px}

/* sections */
section.blk{padding:92px 0;border-top:1px solid rgba(142,130,109,.13);
  background-image:linear-gradient(rgba(251,250,247,.64),rgba(251,250,247,.64)),url("background-paper.jpg");
  background-position:center,center 24%;background-size:cover,1400px auto}
section.blk:nth-of-type(even){background-position:center,center 72%}
.tint{background-image:linear-gradient(rgba(231,226,216,.5),rgba(231,226,216,.5)),url("background-paper.jpg")!important;
  background-position:center,center 64%!important;background-size:cover,1400px auto!important}
.sec-head{position:relative;margin-bottom:50px;padding-left:22px}
.sec-head::before{content:"";position:absolute;left:0;top:3px;width:4px;height:calc(100% - 6px);border-radius:99px;background:linear-gradient(var(--amber),var(--teal))}
.sec-num{font-size:13px;font-weight:800;color:var(--amber-d);letter-spacing:.16em;display:block;margin-bottom:10px}
.sec-head h2{font-size:clamp(25px,3.5vw,37px);color:var(--ink);letter-spacing:-.02em;font-weight:800;line-height:1.28}
.sec-head p{margin-top:14px;font-size:16.5px;color:var(--muted);max-width:56ch}
h3.mini{font-size:20px;color:var(--ink);font-weight:800;margin-bottom:14px;letter-spacing:-.01em}

/* service cards */
.offer-flow{display:flex;flex-direction:column}.offer-flow .cases-section{order:1}.offer-flow .services-section{order:2}
.svc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:20px}
.svc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;
  position:relative;overflow:hidden;text-decoration:none;display:block;color:var(--body);
  transition:transform .22s,box-shadow .22s,border-color .22s}
.svc::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--card-accent,var(--amber));
  transform:scaleY(0);transform-origin:top;transition:transform .3s}
.svc[data-tone="amber"]{--card-accent:#f2a63b}.svc[data-tone="teal"]{--card-accent:#1f9e8f}
.svc[data-tone="blue"]{--card-accent:#5687df}.svc[data-tone="rose"]{--card-accent:#d96b7f}
.svc[data-mark]::before{content:attr(data-mark);position:absolute;right:18px;top:181px;color:var(--card-accent);
  opacity:.075;font-size:52px;line-height:1;font-weight:900;letter-spacing:-.07em;pointer-events:none}
.svc-media{position:relative;display:block;height:168px;margin:-30px -28px 24px;overflow:hidden;border-bottom:1px solid var(--line);background:#ddd}
.svc-media::after{content:"";position:absolute;right:20px;bottom:17px;width:21px;height:21px;border:3px solid rgba(255,255,255,.9);
  background:var(--card-accent);transform:rotate(45deg);box-shadow:0 5px 14px rgba(10,12,17,.28)}
.svc-media img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .55s cubic-bezier(.2,.7,.3,1)}
.svc:hover .svc-media img{transform:scale(1.035)}
.svc[data-tone="blue"] .svc-media img{object-position:center 43%}.svc[data-tone="rose"] .svc-media img{object-position:center 56%}
.svc:hover{transform:translateY(-5px);box-shadow:0 22px 48px rgba(13,15,20,.11);border-color:#d9d4c8}
.svc:hover::after{transform:scaleY(1)}
.svc h3{font-size:20px;color:var(--ink);font-weight:800;letter-spacing:-.01em;margin-bottom:8px}
.svc .price{display:inline-block;font-size:14px;color:var(--amber-d);font-weight:700;
  background:var(--amber-bg);border:1px solid var(--amber-line);border-radius:999px;padding:3px 13px;margin-bottom:15px}
.svc .price b{font-size:16px;color:#a8660f}
.svc p{font-size:15.5px;line-height:1.75}
.svc .more{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:14.5px;color:var(--amber-d);font-weight:700}
.svc.wide{grid-column:1/-1;background:linear-gradient(180deg,#fff,#fcfbf8)}

/* After the case proof, services become a compact buying menu instead of a second gallery. */
.services-section .svc-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.services-section .svc[data-mark]{display:grid;grid-template-columns:112px minmax(0,1fr);grid-template-rows:auto auto 1fr auto;
  column-gap:22px;padding:22px;min-height:224px}
.services-section .svc[data-mark]::before{top:21px}
.services-section .svc[data-mark]>.svc-media{grid-column:1;grid-row:1/5;width:112px;height:auto;min-height:178px;margin:0;border:0;border-radius:10px}
.services-section .svc[data-mark]>h3,.services-section .svc[data-mark]>.price,.services-section .svc[data-mark]>p,
.services-section .svc[data-mark]>.more{grid-column:2}
.services-section .svc[data-mark]>.price{justify-self:start;margin-bottom:9px}
.services-section .svc[data-mark]>p{font-size:14.5px;line-height:1.65}
.services-section .svc[data-mark]>.more{margin-top:10px;padding-top:10px}
.services-section .callout{margin-top:20px}

.callout{margin-top:26px;background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--teal);
  border-radius:0 10px 10px 0;padding:20px 24px;font-size:15.5px;color:var(--body)}

/* cases */
.case{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:34px 32px;margin-bottom:22px}
.case-banner{height:230px;margin:-34px -32px 30px;overflow:hidden;border-radius:var(--r) var(--r) 0 0;border-bottom:1px solid var(--line);background:#ddd}
.case-banner img{width:100%;height:100%;display:block;object-fit:cover}.case-banner img[src*="case-fulijie"]{object-position:center 48%}
.case-banner img[src*="case-survey"],.case-banner img[src*="case-quote"]{object-position:center 53%}
.case-top{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.case h3{font-size:22px;color:var(--ink);font-weight:800;letter-spacing:-.015em;line-height:1.35}
.chip{font-size:12.5px;font-weight:700;letter-spacing:.03em;white-space:nowrap;
  background:#e9f5f3;color:#12796d;border:1px solid #c9e7e2;border-radius:999px;padding:4px 12px}
.chip.live{background:#e9f7ec;color:#1a7f3c;border-color:#c8e9d1}
.tags{font-size:13.5px;color:var(--muted);margin-top:6px}
.pair{display:flex;gap:16px;margin-bottom:14px;align-items:flex-start}
.pair .k{flex:0 0 58px;font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--amber-d);
  background:var(--amber-bg);border-radius:5px;text-align:center;padding:3px 0;margin-top:4px}
.pair .v{flex:1;font-size:15.5px;line-height:1.75}
.demo-row{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;gap:10px;flex-wrap:wrap}
.demo-lab{margin:22px 0 0;padding:24px 26px;border:1px solid var(--line);border-left:4px solid var(--cyan);background:#fff}.demo-lab small{display:block;color:#087aa0;font-size:10px;font-weight:900;letter-spacing:.14em}.demo-lab strong{display:block;margin:8px 0 5px;font-size:20px}.demo-lab p{margin:0;color:#667085;line-height:1.65}.demo-lab .demo-row{margin-top:16px}
.dbtn{display:inline-flex;align-items:center;gap:7px;text-decoration:none;font-size:14.5px;font-weight:700;
  color:var(--ink);background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:9px 16px;
  transition:background .18s,border-color .18s,transform .18s}
.dbtn:hover{background:var(--amber-bg);border-color:#eccf9c;transform:translateY(-1px)}
.dbtn span{color:var(--amber-d);font-weight:800}

.featured-case{display:grid;grid-template-columns:minmax(260px,.78fr) minmax(0,1.32fr);padding:0;overflow:hidden;
  background:var(--ink);border-color:#2c3443;box-shadow:0 24px 60px rgba(13,15,20,.14)}
.case-media{position:relative;min-height:100%;overflow:hidden;background:#232832}
.case-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(13,15,20,.93) 100%)}
.case-media img{width:100%;height:100%;object-fit:cover;display:block;min-height:430px;transition:transform .6s}
.featured-case:hover .case-media img{transform:scale(1.025)}
.case-media-meta{position:absolute;z-index:1;left:24px;right:24px;bottom:24px;display:grid;gap:5px}
.case-media-meta span{font-size:10.5px;color:var(--amber);font-weight:800;letter-spacing:.16em}
.case-media-meta b{font-size:16px;line-height:1.45;color:#fff}
.featured-case .case-content{padding:34px 32px}
.featured-case h3,.featured-case .pair .v{color:#fff}
.featured-case .tags{color:#8993a5}
.featured-case .pair .k{background:rgba(242,166,59,.12);color:#f2b961}
.featured-case .demo-row{border-color:#303848}
.featured-case .dbtn{background:#1a202b;border-color:#343d4f;color:#e8ebf1}
.featured-case .dbtn:hover{background:#242c3a;border-color:#5a4930}

.wood-case{display:block;min-height:640px;background:
  linear-gradient(90deg,rgba(8,10,14,.18),rgba(8,10,14,.32) 32%,rgba(8,10,14,.96) 68%),
  linear-gradient(0deg,rgba(8,10,14,.92),transparent 56%),url("case-fulijie.jpg") center/cover no-repeat}
.wood-case .case-content{width:min(650px,68%);min-height:640px;margin-left:auto;padding:52px 42px;
  display:flex;flex-direction:column;justify-content:center;background:rgba(12,15,20,.58);backdrop-filter:blur(8px);border-left:1px solid rgba(255,255,255,.12)}
.case-kicker{display:flex;align-items:center;gap:12px;margin-bottom:20px}.case-kicker span{display:grid;place-items:center;width:36px;height:36px;
  border-radius:50%;background:var(--amber);color:#261907;font:900 12px/1 ui-monospace,SFMono-Regular,Consolas,monospace}
.case-kicker b{color:#f4bd70;font:800 11px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em}

.system-case{display:grid;grid-template-columns:minmax(270px,.72fr) minmax(0,1.28fr);padding:0;overflow:hidden;min-height:440px}
.system-case .case-content{padding:34px 32px;display:flex;flex-direction:column;justify-content:center;color:#344054}
.system-case .case-content .tags{color:#667085}.system-case .case-content .pair .v{color:#344054}
.system-visual{position:relative;overflow:hidden;padding:30px 26px;display:flex;flex-direction:column;justify-content:space-between;
  color:#fff;background:#151a23;isolation:isolate}
.system-visual::before{content:"";position:absolute;z-index:-1;inset:0;opacity:.42;background:
  linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:28px 28px,28px 28px}
.visual-label{font:800 10px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em;color:var(--visual-tone)}
.system-visual>strong{font-size:23px;line-height:1.35;color:#fff;letter-spacing:-.02em}.system-visual>strong em{font-style:normal;color:var(--visual-tone)}
.quote-case{--visual-tone:#f2a63b}.survey-case{--visual-tone:#6f9bf1}.platform-case{--visual-tone:#2589d8}
.quote-case .system-visual{justify-content:flex-end;background:url("case-quote-editorial.jpg") center 52%/cover no-repeat}
.quote-case .system-visual::before{z-index:0;opacity:1;background:linear-gradient(180deg,rgba(8,10,13,.5) 0%,transparent 34%,rgba(8,10,13,.08) 55%,rgba(8,10,13,.92) 100%)}
.quote-case .visual-label{position:absolute;top:28px;left:26px;color:#f4c784;text-shadow:0 2px 12px rgba(0,0,0,.8)}
.quote-method{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 15px}.quote-method span{padding:6px 9px;border:1px solid rgba(255,255,255,.3);border-radius:99px;background:rgba(10,12,15,.58);backdrop-filter:blur(5px);color:#fff;font-size:9px;font-weight:800}
.survey-preview{position:relative;display:grid;gap:9px;margin:28px 0 34px;padding:18px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:rgba(13,15,20,.68)}
.survey-preview span{padding:8px 10px;border-radius:6px;background:rgba(255,255,255,.07);font-size:11px}.survey-preview .done{border-left:3px solid var(--visual-tone)}
.survey-preview i{position:absolute;right:12px;bottom:-22px;display:grid;place-items:center;width:50px;height:50px;border-radius:50%;background:var(--visual-tone);color:#111827;font:900 12px/1 ui-monospace,SFMono-Regular,Consolas,monospace;font-style:normal}
.platform-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:26px 0}.platform-stats span{padding:13px 10px;border:1px solid rgba(255,255,255,.13);border-radius:9px;background:rgba(13,15,20,.62);font-size:10px;color:#aeb7c7}.platform-stats span:last-child{grid-column:1/-1}.platform-stats b{display:block;color:#fff;font-size:22px;line-height:1.1;margin-bottom:4px}
.survey-case .system-visual,.platform-case .system-visual{justify-content:flex-end}
.survey-case .system-visual{background:url("case-survey-editorial.jpg") center/cover no-repeat}
.platform-case .system-visual{background:url("case-platform-editorial.jpg") center/cover no-repeat}
.survey-case .system-visual::before,.platform-case .system-visual::before{z-index:0;opacity:1;background:linear-gradient(180deg,rgba(8,10,13,.34) 0%,transparent 38%,rgba(8,10,13,.08) 55%,rgba(8,10,13,.92) 100%)}
.survey-case .visual-label,.platform-case .visual-label{position:absolute;top:28px;left:26px;padding:6px 8px;border-radius:4px;background:rgba(10,12,15,.62);backdrop-filter:blur(5px);color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.65)}
.survey-method{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:15px}.survey-method span{padding:6px 9px;border:1px solid rgba(255,255,255,.32);border-radius:99px;background:rgba(10,12,15,.58);backdrop-filter:blur(5px);color:#fff;font-size:9px;font-weight:800}
.platform-case .platform-stats{margin:0 0 15px}.platform-case .platform-stats span{background:rgba(10,12,15,.6);backdrop-filter:blur(5px)}
.quote-case .system-visual>strong,.survey-case .system-visual>strong,.platform-case .system-visual>strong{align-self:flex-start;padding:12px 15px 13px;
  border-left:3px solid var(--visual-tone);border-radius:0 8px 8px 0;background:rgba(7,9,12,.82);backdrop-filter:blur(7px);
  color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.85);box-shadow:0 12px 26px rgba(0,0,0,.22)}
.quote-case .system-visual>strong em{color:#ffc86e}.survey-case .system-visual>strong em{color:#a9c5ff}.platform-case .system-visual>strong em{color:#ff9eb8}
.platform-case .platform-actual{justify-content:space-between;padding:22px;background:#090b0e}
.platform-case .platform-actual::before{z-index:0;opacity:1;background:linear-gradient(135deg,rgba(37,137,216,.12),transparent 46%)}
.platform-brand-lockup{position:relative;z-index:1;display:flex;align-items:center;gap:11px;min-width:0}
.platform-brand-lockup img{flex:0 0 51px;width:51px;height:51px;object-fit:contain}
.platform-brand-lockup span{display:grid;gap:3px;min-width:0}.platform-brand-lockup b{color:#fff;font-size:21px;line-height:1;letter-spacing:.04em;white-space:nowrap}
.platform-brand-lockup small{color:#599bd0;font:700 7px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em;white-space:nowrap}
.platform-gallery{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr .95fr;grid-template-rows:108px 108px;
  gap:7px;margin:13px 0;min-height:223px}
.platform-gallery img{width:100%;height:100%;display:block;object-fit:cover;border-radius:7px;border:1px solid rgba(255,255,255,.12)}
.platform-gallery .gallery-tall{grid-row:1/3}.platform-gallery img:last-child{grid-column:2/4}
.platform-channel-list{position:relative;z-index:1;display:flex;align-items:center;gap:9px;padding-top:11px;border-top:1px solid rgba(89,155,208,.24)}
.platform-channel-list small{margin-right:auto;color:#657180;font:700 8px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.12em}
.platform-channel-list span{color:#86c5f2;font-size:10px;font-weight:800;letter-spacing:.08em}
.platform-channel-list span+span::before{content:"·";margin-right:9px;color:#35546b}
.case-choice[data-case-target="case-aicreate"] .choice-diamond{background:#050607}
.case-choice[data-case-target="case-aicreate"] .choice-diamond img{object-fit:cover;filter:saturate(.88) brightness(.86)}

.case-select-shell{position:relative;margin-bottom:28px;padding:34px 34px 42px;overflow:hidden;border:1px solid #303746;border-radius:24px;
  background:linear-gradient(rgba(13,16,22,.87),rgba(13,16,22,.94)),url("background-charcoal.jpg") center/cover;
  box-shadow:0 30px 70px rgba(18,20,25,.18)}
.case-select-shell::after{content:"04 PROJECTS";position:absolute;right:-8px;bottom:-18px;color:rgba(255,255,255,.035);
  font:900 78px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:-.08em;pointer-events:none}
.selector-head{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:12px}
.selector-head span{display:block;margin-bottom:7px;color:var(--amber);font:800 10px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.18em}
.selector-head h3{color:#fff;font-size:25px}.selector-head p{max-width:30ch;color:#818b9c;font-size:13px}
.case-selector{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;align-items:start;padding:28px 18px 10px}
.case-choice{appearance:none;border:0;background:transparent;color:#fff;font:inherit;cursor:pointer;display:flex;flex-direction:column;align-items:center;min-width:0}
.case-choice:nth-child(even){margin-top:54px}.choice-diamond{position:relative;width:145px;height:145px;overflow:hidden;border:2px solid #465064;border-radius:17px;
  transform:rotate(45deg);translate:0 0;scale:1;box-shadow:0 18px 35px rgba(0,0,0,.35);transition:border-color .22s,scale .22s,box-shadow .22s;
  animation:diamondFloat 5.2s ease-in-out infinite}
.case-choice:nth-child(2) .choice-diamond{animation-delay:-1.4s}.case-choice:nth-child(3) .choice-diamond{animation-delay:-2.8s}.case-choice:nth-child(4) .choice-diamond{animation-delay:-4.1s}
.choice-diamond::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.13);pointer-events:none}
.choice-diamond img{width:142%;height:142%;margin:-21%;display:block;object-fit:cover;transform:rotate(-45deg);filter:saturate(.78) brightness(.78);transition:filter .22s,transform .35s}
.case-choice:hover .choice-diamond,.case-choice:focus-visible .choice-diamond{border-color:#b08a52;scale:1.045;box-shadow:0 24px 48px rgba(0,0,0,.45)}
.case-choice:hover .choice-diamond img{filter:saturate(1) brightness(.95);transform:rotate(-45deg) scale(1.035)}
.case-choice.active .choice-diamond{border-color:var(--amber);scale:1.09;box-shadow:0 0 0 5px rgba(242,166,59,.1),0 27px 55px rgba(0,0,0,.48)}
.case-choice.active .choice-diamond img{filter:saturate(1) brightness(1)}
.choice-copy{display:grid;gap:6px;min-width:175px;margin-top:35px;text-align:center}
.choice-copy small{color:#aab3c2;font-size:9px;font-weight:750;line-height:1.35;letter-spacing:.035em;white-space:nowrap}
.choice-copy b{color:#f1f4f8;font-size:13px;line-height:1.35}.case-choice.active .choice-copy small{color:#f2ad4d}.case-choice.active .choice-copy b{color:#fff}
.case-choice:focus-visible{outline:2px solid var(--amber);outline-offset:8px;border-radius:8px}
.case-stage [data-case-panel][hidden]{display:none!important}.case-stage [data-case-panel].case-switching{animation:caseReveal .42s ease both}
.case[id]{scroll-margin-top:86px}
@keyframes diamondFloat{0%,100%{translate:0 0}50%{translate:0 -6px}}
@keyframes caseReveal{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* The portfolio is one continuous selection stage, not a dark widget dropped into a light page. */
.cases-section{position:relative;overflow:hidden;color:#bec6d3;border-top-color:#303641!important;
  background-image:linear-gradient(rgba(12,15,20,.9),rgba(12,15,20,.96)),url("background-charcoal.jpg")!important;
  background-position:center!important;background-size:cover!important}
.cases-section::before,.cases-section::after{content:"";position:absolute;display:block;border:1px solid rgba(242,166,59,.13);
  transform:rotate(45deg);pointer-events:none}
.cases-section::before{left:-260px;top:180px;width:440px;height:440px}
.cases-section::after{right:-360px;bottom:150px;width:560px;height:560px;border-color:rgba(31,158,143,.12)}
.cases-section>.wrap{position:relative;z-index:1}
.cases-section .sec-head::before{background:linear-gradient(var(--amber),#755020)}
.cases-section .sec-head h2{color:#fff}.cases-section .sec-head p{color:#8f99aa}.cases-section .sec-num{color:var(--amber)}
.cases-section .sec-num::before{content:"";display:inline-block;width:8px;height:8px;margin:0 11px 1px 3px;border:1px solid currentColor;
  transform:rotate(45deg)}
.cases-section .case-select-shell{margin-bottom:0;padding:20px 0 40px;overflow:visible;border:0;border-radius:0;background:none;box-shadow:none}
.cases-section .case-select-shell::after{right:0;bottom:2px;color:rgba(255,255,255,.025)}
.cases-section .case-stage{position:relative;padding-top:30px;border-top:1px solid #303641}
.cases-section .case{box-shadow:0 28px 70px rgba(0,0,0,.28)}

/* generic list blocks */
.plist{list-style:none;display:grid;gap:12px;counter-reset:item}
.plist li{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:16px 20px;
  font-size:15.5px;display:flex;gap:13px;align-items:flex-start}
.plist li{counter-increment:item;transition:transform .18s,box-shadow .18s}.plist li:hover{transform:translateX(4px);box-shadow:0 12px 28px rgba(13,15,20,.06)}
.plist li::before{content:counter(item,decimal-leading-zero);flex:0 0 30px;color:var(--amber-d);font:800 11px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;margin-top:5px}
.plist li b{display:block;margin-bottom:2px}

/* Direct, visible answers for searchers and answer engines. */
.answer-section .sec-head{margin-bottom:34px}
.answer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.answer-card{position:relative;overflow:hidden;background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:12px;padding:25px 22px 23px}
.answer-card::before{content:"Q";position:absolute;right:15px;top:9px;color:rgba(196,121,20,.09);font:900 44px/1 ui-monospace,SFMono-Regular,Consolas,monospace}
.answer-card h3{position:relative;padding-right:18px;margin-bottom:11px;color:var(--ink);font-size:18px;line-height:1.45;font-weight:800;letter-spacing:-.01em}
.answer-card p{font-size:15.5px;line-height:1.75;color:var(--body)}

.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.panel{position:relative;overflow:hidden;background:linear-gradient(145deg,#fff,#faf9f5);border:1px solid var(--line);border-radius:var(--r);padding:32px 26px 28px}
.panel::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--amber),var(--teal))}
.panel h3{font-size:18.5px;color:var(--ink);font-weight:800;margin-bottom:10px}
.panel p{font-size:15.5px}

/* why (dark) */
.why-sec{background:linear-gradient(rgba(13,15,20,.88),rgba(13,15,20,.94)),url("background-charcoal.jpg") center 35%/cover;color:#c3cad6;padding:92px 0}
.why-sec .sec-num{color:var(--amber)}
.why-sec .sec-head h2{color:#fff}
.why-sec .sec-head p{color:#79839a}
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.why{background:var(--ink-2);border:1px solid #252c3b;border-radius:var(--r);padding:28px 26px;
  transition:border-color .22s,transform .22s}
.why:hover{border-color:#3d4657;transform:translateY(-3px)}
.why .n{font-size:12.5px;font-weight:800;color:var(--amber);letter-spacing:.14em;display:block;margin-bottom:12px}
.why h3{font-size:19px;color:#fff;font-weight:800;margin-bottom:9px;letter-spacing:-.01em}
.why p{font-size:15.5px;line-height:1.75;color:#a9b2c2}
.why p b{color:#fff}

/* objection block */
.objection{
  margin-top:22px;background:linear-gradient(150deg,#1d2330,#151a24);
  border:1px solid #34405a;border-left:3px solid var(--amber);
  border-radius:0 var(--r) var(--r) 0;padding:34px 34px 30px;
}
.objection h3{font-size:clamp(20px,2.8vw,26px);color:#fff;font-weight:800;
  letter-spacing:-.02em;margin-bottom:16px}
.objection p{font-size:16px;line-height:1.85;color:#a9b2c2;margin-bottom:14px;max-width:62ch}
.objection p:last-child{margin-bottom:0}
.objection p b{color:#fff}
@media(max-width:640px){.objection{padding:26px 22px}}

/* steps */
.steps{counter-reset:s}
.step{counter-increment:s;position:relative;padding:0 0 30px 62px;border-left:2px solid var(--line);margin-left:18px}
.step:last-child{border-left-color:transparent;padding-bottom:0}
.step::before{content:counter(s,decimal-leading-zero);position:absolute;left:-19px;top:-2px;
  width:38px;height:38px;border-radius:50%;background:var(--ink);color:var(--amber);
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.step h3{font-size:18.5px;color:var(--ink);font-weight:800;margin-bottom:5px}
.step p{font-size:15.5px}

/* contact */
.contact-sec{background:linear-gradient(rgba(13,15,20,.88),rgba(13,15,20,.95)),url("background-charcoal.jpg") center 82%/cover;color:#c3cad6;padding:88px 0;position:relative;overflow:hidden}
.contact-sec::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,transparent 0 48%,rgba(255,255,255,.035) 48.1% 48.2%,transparent 48.3%)}
.contact-sec>.narrow,.contact-sec>.wrap{position:relative;z-index:1}
.contact-box{background:linear-gradient(155deg,#1a1f2b,#141821);border:1px solid #2a3243;
  border-radius:20px;padding:52px 44px;text-align:center}
.contact-box h2{font-size:clamp(25px,3.4vw,36px);color:#fff;font-weight:800;letter-spacing:-.02em;margin-bottom:16px}
.contact-box p{color:#a9b2c2;max-width:48ch;margin:0 auto 32px;font-size:16.5px}
.contact-sec .links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.contact-sec .links a{text-decoration:none;font-size:14.5px;font-weight:700;color:#c3cad6;
  border:1px solid #333c4f;border-radius:8px;padding:9px 18px;transition:all .18s}
.contact-sec .links a:hover{color:var(--amber);border-color:var(--amber)}

/* project index shared by service pages */
.work-index{padding:70px 0;background:linear-gradient(rgba(18,22,29,.9),rgba(18,22,29,.95)),url("background-charcoal.jpg") center/cover;color:#c4cad5;border-top:1px solid #282f3d}
.work-index-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:26px}
.work-index-head span{display:block;margin-bottom:7px;color:var(--amber);font:800 11px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em}
.work-index-head h2{color:#fff;font-size:clamp(23px,3vw,32px);line-height:1.25}.work-index-head p{max-width:36ch;color:#858fa0;font-size:14px}
.work-mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.work-mini{position:relative;min-height:170px;padding:19px;overflow:hidden;border:1px solid #303746;border-radius:13px;
  background:linear-gradient(145deg,#1e2430,#171b23);text-decoration:none;transition:transform .2s,border-color .2s,background .2s}
.work-mini::after{content:attr(data-no);position:absolute;right:12px;bottom:-13px;color:rgba(255,255,255,.045);font:900 70px/1 ui-monospace,SFMono-Regular,Consolas,monospace}
.work-mini:hover{transform:translateY(-4px);border-color:#675237;background:linear-gradient(145deg,#252c38,#191e27)}
.work-mini small{display:block;color:var(--amber);font-size:10px;font-weight:800;letter-spacing:.08em;margin-bottom:23px}
.work-mini b{display:block;color:#fff;font-size:16px;line-height:1.4;margin-bottom:7px}.work-mini span{position:relative;z-index:1;color:#8993a5;font-size:12px;line-height:1.5}

footer{background:var(--ink);color:#5d6678;font-size:14px;padding:0 0 44px;text-align:center}
footer a{color:#79839a;text-decoration:none}
footer a:hover{color:var(--amber)}

.back{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;
  color:var(--amber-d);text-decoration:none;margin-bottom:22px}
.back:hover{text-decoration:underline}

.to-top{position:fixed;right:24px;bottom:24px;z-index:45;width:54px;height:54px;display:grid;place-content:center;gap:1px;
  border:1px solid #3a4353;border-radius:14px;background:rgba(18,22,29,.94);color:var(--amber);cursor:pointer;
  opacity:0;transform:translateY(12px);pointer-events:none;box-shadow:0 13px 34px rgba(0,0,0,.28);backdrop-filter:blur(10px);
  transition:opacity .2s,transform .2s,border-color .2s,background .2s}
.to-top.show{opacity:1;transform:none;pointer-events:auto}.to-top:hover{border-color:var(--amber);background:#1c222d}
.to-top:focus-visible{outline:2px solid var(--amber);outline-offset:3px}.to-top span{font-size:22px;line-height:.8;font-weight:700}
.to-top small{color:#a7b0c0;font:800 8px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em}

/* Readability pass: body copy stays comfortably readable; only decorative metadata remains compact. */
.nav .brand .bt b{font-size:16.5px}.nav .brand .bt small{font-size:12.5px}.nav .links a{font-size:15.5px}
.eyebrow{font-size:14px}.hero .lede{font-size:clamp(17.5px,2vw,20px)}.hero .price-tag{font-size:16px}
.cta-sub{font-size:15px}.showcase-bar{font-size:12.5px}.showcase-body>span{font-size:12px}.showcase-body p{font-size:15px}
.fit h3{font-size:15px}.fit-item{font-size:16px}.sec-num{font-size:14px}.sec-head p{font-size:17.5px}
.svc .price{font-size:15px}.svc .price b{font-size:17px}.svc p,.services-section .svc[data-mark]>p{font-size:16.5px}.svc .more{font-size:15.5px}
.callout{font-size:16.5px}.chip{font-size:13.5px}.tags{font-size:15px}.pair .k{font-size:13px}.pair .v{font-size:16.5px}.dbtn{font-size:15.5px}
.case-media-meta span{font-size:12px}.case-media-meta b{font-size:17px}.visual-label{font-size:11.5px}
.platform-brand-lockup small{font-size:9.5px}.platform-channel-list small{font-size:11px}.platform-channel-list span{font-size:13px}
.selector-head span{font-size:11.5px}.selector-head p{font-size:15px}.choice-copy small{font-size:13px}.choice-copy b{font-size:18px}
.plist li,.panel p,.why p,.step p{font-size:16.5px}.contact-sec .links a,.back{font-size:15.5px}
.work-index-head p{font-size:15.5px}.work-mini small{font-size:11.5px}.work-mini b{font-size:17px}.work-mini span{font-size:14px}
footer{font-size:15px}

/* Text inside the service-page visual demos also gets one readable step larger. */
.line-head>span{font-size:11px}.line-head>b{font-size:12.5px}.line-head b small{font-size:10px}.line-head em{font-size:12px}
.chat-line{font-size:12.5px}.chat-status{font-size:11px}.canvas-head b{font-size:12px}.canvas-head span{font-size:10px}
.flow-node small{font-size:10px}.flow-node b{font-size:13px}.flow-branches span{font-size:11px}.flow-status{font-size:10px}
.form-head span{font-size:12px}.form-head b{font-size:11px}.form-label{font-size:11px}.form-ui>strong{font-size:16px}
.form-options span,.form-next{font-size:12px}.receipt-head small{font-size:10px}.quote-input,.quote-row,.quote-row b,.quote-total{font-size:12px}
.build-side small{font-size:10.5px}.build-side span{font-size:11px}.build-footer{font-size:11.5px}

@media(max-width:640px){
  .hero{padding:74px 0 64px}
  .hero.sub{padding:54px 0 48px}
  section.blk,.why-sec,.contact-sec{padding:64px 0}
  .contact-box{padding:38px 24px}
  .case{padding:26px 22px}
  .case-banner{height:190px;margin:-26px -22px 24px}
  .pair{flex-direction:column;gap:4px}
  .pair .k{flex:none;display:inline-block;padding:3px 10px}
  .step{padding-left:48px}
  .service-ui{min-height:310px;padding:16px;transform:none}
  .wood-case{min-height:0;background-position:34% center}
  .wood-case .case-content{width:100%;min-height:620px;padding:42px 24px;background:linear-gradient(90deg,rgba(10,12,16,.88),rgba(10,12,16,.72))}
  .to-top{right:16px;bottom:max(16px,env(safe-area-inset-bottom));width:49px;height:49px;border-radius:12px}
}

@media(max-width:900px){
  .nav .wrap{height:auto;padding:11px 20px 0;display:block}
  .nav .brand{margin-bottom:9px}
  .nav .links{width:calc(100% + 40px);margin-left:-20px;padding:0 20px 10px;display:flex;flex-wrap:nowrap;gap:20px;overflow-x:auto;scrollbar-width:none}
  .nav .links::-webkit-scrollbar{display:none}
  .nav .links a{flex:0 0 auto;white-space:nowrap}
  .service-hero-layout{grid-template-columns:1fr;gap:42px;min-height:0}
  .answer-grid{grid-template-columns:1fr}
  .service-ui{width:100%;max-width:560px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-showcase{max-width:540px;transform:none}
  .hero-showcase:hover{transform:translateY(-4px)}
  .case-selector{grid-template-columns:repeat(2,minmax(0,1fr));max-width:560px;margin:0 auto}
  .featured-case{grid-template-columns:1fr}
  .system-case{grid-template-columns:1fr}
  .system-visual{min-height:320px}
  .case-media img{min-height:260px;max-height:330px}
  .services-section .svc-grid{grid-template-columns:1fr}
  .work-index-head{align-items:flex-start;flex-direction:column}
  .work-mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:560px){
  .case-select-shell{margin-left:-12px;margin-right:-12px;padding:28px 18px 32px;border-radius:18px}
  .cases-section .case-select-shell{margin-left:0;margin-right:0;padding:18px 0 34px;border-radius:0}
  .selector-head{align-items:flex-start;flex-direction:column}.case-selector{display:flex;max-width:none;margin:0 -18px;padding:28px 24px 12px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
  .case-selector::-webkit-scrollbar{display:none}.case-choice{flex:0 0 170px;scroll-snap-align:center}.case-choice:nth-child(even){margin-top:36px}
  .choice-diamond{width:122px;height:122px}.choice-diamond img{width:142%;height:142%}
  .services-section .svc[data-mark]{grid-template-columns:88px minmax(0,1fr);column-gap:16px;padding:17px;min-height:218px}
  .services-section .svc[data-mark]>.svc-media{width:88px;min-height:180px}
  .services-section .svc[data-mark]>.svc-media::after{right:13px;bottom:14px;width:16px;height:16px}
  .work-mini-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
  .work-mini{flex:0 0 82%;scroll-snap-align:start}
  .build-ui{grid-template-columns:1fr;gap:0}
  .build-side{min-height:190px;transform:none!important}
  .build-arrow{margin:-10px auto;transform:rotate(90deg)}
  .build-footer{margin-top:18px}
}