/* Tuoke Technology — English site stylesheet
   Brand accent: #ff7200 (matches tuokekeji.com Chinese site)
   Mobile-first, responsive, no external dependencies. */

:root{
  --brand:#ff7200;
  --brand-dark:#e05f00;
  --brand-soft:#fff4ea;
  --ink:#1b1f27;
  --ink-2:#3d4552;
  --muted:#6b7482;
  --line:#e6e9ee;
  --bg:#ffffff;
  --bg-alt:#f7f8fa;
  --dark:#141821;
  --radius:14px;
  --wrap:1160px;
  --shadow:0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.06);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.7;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,4.4vw,2.6rem)}
h2{font-size:clamp(1.35rem,3vw,1.9rem)}
h3{font-size:clamp(1.08rem,2vw,1.25rem)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin-bottom:.4em}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.section{padding:clamp(44px,7vw,80px) 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--dark);color:#fff}
.section--dark .muted{color:#a9b1bf}
.lead{font-size:clamp(1rem,1.6vw,1.12rem);color:var(--ink-2);max-width:62ch}
.muted{color:var(--muted)}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(8px);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.06rem;
  letter-spacing:-.02em;white-space:nowrap}
.brand .mark{width:26px;height:26px;border-radius:8px;background:var(--brand);
  display:grid;place-items:center;color:#fff;font-size:.82rem;font-weight:800}
.brand small{display:block;font-size:.66rem;font-weight:600;color:var(--muted);
  letter-spacing:.08em;text-transform:uppercase;margin-top:-3px}
.nav-toggle{margin-left:auto;display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;
  font:inherit;font-size:.9rem;cursor:pointer}
.site-nav{display:none}
.site-nav a{padding:8px 2px;font-size:.94rem;color:var(--ink-2);border-bottom:2px solid transparent}
.site-nav a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.site-nav a[aria-current="page"]{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}
.header-cta{margin-left:auto;display:none}
.header-cta .btn{white-space:nowrap}
.lang{margin-left:auto;font-size:.86rem;color:var(--muted);display:none}

.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;
  font-size:.95rem;border:1.5px solid transparent;cursor:pointer;transition:.15s}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:var(--brand-dark)}
.btn--ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--onDark{border-color:rgba(255,255,255,.35);color:#fff}
.btn--onDark:hover{border-color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* ---------- hero ---------- */
.hero{background:linear-gradient(140deg,#fff 0%,var(--brand-soft) 100%);
  border-bottom:1px solid var(--line);padding:clamp(48px,8vw,88px) 0}
.hero .eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.hero p{max-width:64ch;color:var(--ink-2);font-size:clamp(1rem,1.7vw,1.15rem)}
.hero-facts{display:grid;gap:14px;margin-top:30px;grid-template-columns:1fr}
.hero-fact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;
  font-size:.92rem;box-shadow:var(--shadow)}
.hero-fact b{display:block;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);margin-bottom:4px;font-weight:700}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:18px;grid-template-columns:1fr}
.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card .tagline{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brand);margin-bottom:8px}
.card--link:hover{border-color:var(--brand);transform:translateY(-2px);transition:.18s}
.card ul{padding-left:1.1em;color:var(--ink-2);font-size:.94rem}

/* ---------- lists ---------- */
.checklist{list-style:none;padding:0;margin:0}
.checklist li{position:relative;padding-left:30px;margin-bottom:12px;color:var(--ink-2)}
.checklist li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:8px;
  border-left:2.5px solid var(--brand);border-bottom:2.5px solid var(--brand);
  transform:rotate(-45deg)}
.plainlist{list-style:none;padding:0}
.plainlist li{padding-left:24px;position:relative;color:var(--ink-2)}
.plainlist li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  border-radius:50%;background:var(--brand)}
.dark-list{color:#c6cdda}
.dark-list li::before{background:var(--brand)}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1em}
table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:520px}
th,td{border-bottom:1px solid var(--line);padding:12px 12px;text-align:left;vertical-align:top}
th{background:var(--bg-alt);font-weight:700;font-size:.85rem;letter-spacing:.02em}
td:first-child{font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:840px}
.faq details{border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:12px;
  background:#fff}
.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-size:1.3rem;line-height:1;
  font-weight:700;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);font-size:.95rem;margin:0 0 18px}

/* ---------- steps ---------- */
.steps{counter-reset:step;display:grid;gap:16px;grid-template-columns:1fr;margin-top:8px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  position:relative}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-13px;left:20px;
  width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:.85rem;font-weight:700}
.step h3{margin-top:8px;font-size:1.05rem}
.step p{margin:0;font-size:.93rem;color:var(--ink-2)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--dark);color:#fff;border-radius:var(--radius);
  padding:clamp(28px,4vw,44px);display:grid;gap:20px}
.cta-band h2{color:#fff;margin-bottom:.3em}
.cta-band p{color:#a9b1bf;margin:0}

/* ---------- contact ---------- */
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{padding:14px 0;border-bottom:1px solid var(--line)}
.contact-list b{display:block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:2px}
.contact-list a{color:var(--brand);font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#b9c0cd;font-size:.9rem;padding:44px 0 28px}
.site-footer a:hover{color:var(--brand)}
.footer-grid{display:grid;gap:26px;grid-template-columns:1fr}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;
  font-size:.82rem;color:#8d95a5}

/* ---------- misc ---------- */
.has-sub{position:relative}
.has-sub > a::after{content:"";display:inline-block;margin-left:6px;vertical-align:2px;
  border:4px solid transparent;border-top-color:currentColor}
.submenu{display:none;position:absolute;top:100%;left:-14px;min-width:250px;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow);
  list-style:none;margin:0}
.submenu li{margin:0}
.submenu a{display:block;padding:10px 12px;border-radius:8px;font-size:.92rem;
  border-bottom:0 !important;color:var(--ink-2)}
.submenu a:hover{background:var(--brand-soft);color:var(--brand)}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{display:block}
@media (max-width:899px){
  .submenu{display:block;position:static;border:0;box-shadow:none;padding:0 0 0 14px;
    min-width:0}
  .has-sub > a::after{display:none}
}

.note{background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:10px;
  padding:16px 18px;font-size:.94rem;color:var(--ink-2)}
.note strong{color:var(--ink)}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a:hover{color:var(--brand)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;border-radius:8px;z-index:99}

/* ---------- responsive ---------- */
@media (min-width:640px){
  .hero-facts{grid-template-columns:repeat(3,1fr)}
  .grid--2{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
  .nav-toggle{display:none}
  .site-nav{display:flex;gap:22px;align-items:center;margin-left:8px}
  .header-cta{display:block}
  .lang{display:block;margin-left:0}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .grid--4{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(4,1fr)}
  .cta-band{grid-template-columns:1.6fr 1fr;align-items:center}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:899px){
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;
    border-bottom:1px solid var(--line);padding:10px 20px 18px;flex-direction:column;
    align-items:flex-start;gap:2px;box-shadow:var(--shadow)}
  .site-nav.is-open{display:flex}
  .site-nav a{width:100%;padding:11px 0;border-bottom:1px solid var(--line)}
  .site-nav a:last-child{border-bottom:0}
  .header-inner{position:relative}
}