/* =============================================================
   TAIKE — Oil & Gas Drilling Equipment International Website
   Design system + components
   ============================================================= */

:root{
  --navy:#0a1a2f;
  --navy-800:#0f2540;
  --navy-700:#16324f;
  --navy-600:#1e4067;
  --steel:#54677f;
  --muted:#6b7c92;
  --line:#e3e8ef;
  --line-2:#cfd8e3;
  --bg:#ffffff;
  --bg-alt:#f5f7fa;
  --bg-dark:#071426;
  --accent:#f0a500;
  --accent-dark:#c98700;
  --accent-soft:#fff6e0;
  --ok:#1c9e6b;
  --radius:4px;
  --radius-lg:8px;
  --shadow-sm:0 1px 2px rgba(10,26,47,.06),0 2px 8px rgba(10,26,47,.05);
  --shadow:0 6px 24px rgba(10,26,47,.09);
  --shadow-lg:0 18px 50px rgba(10,26,47,.16);
  --max:1240px;
  --font:'Inter','Segoe UI',-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.65;
  color:#243649;background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0 0 .5em;line-height:1.2;color:var(--navy);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.4rem)}
h2{font-size:clamp(1.55rem,2.8vw,2.35rem)}
h3{font-size:clamp(1.15rem,1.7vw,1.45rem)}
h4{font-size:1.05rem}
p{margin:0 0 1rem}
ul{margin:0 0 1rem;padding-left:1.15rem}
li{margin-bottom:.35rem}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}

/* ---------- layout ---------- */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.container-wide{max-width:1440px}
.section{padding:clamp(56px,7vw,104px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--bg-dark);color:#c9d6e4}
.section-dark h1,.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.grid{display:grid;gap:24px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,64px);align-items:center}
.center{text-align:center}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}

/* ---------- typography helpers ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent-dark);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:block}
.eyebrow.center::before{display:none}
.section-dark .eyebrow{color:var(--accent)}
.lead{font-size:1.075rem;color:var(--steel);max-width:70ch}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px)}
.section-head.center{margin-left:auto;margin-right:auto}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.tiny{font-size:.78rem;letter-spacing:.04em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius);border:2px solid transparent;
  font-size:.82rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  cursor:pointer;transition:.18s ease;white-space:nowrap;
}
.btn svg{flex:none}
.btn-primary{background:var(--accent);color:#1a1204;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff}
.btn-dark{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-dark:hover{background:var(--navy-600);border-color:var(--navy-600)}
.btn-outline{border-color:var(--line-2);color:var(--navy);background:transparent}
.btn-outline:hover{border-color:var(--navy);background:var(--navy);color:#fff}
.btn-ghost-light{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn-sm{padding:10px 18px;font-size:.74rem}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- header ---------- */
.topbar{background:var(--navy);color:#9fb2c8;font-size:.78rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:18px;height:38px;overflow:hidden}
.topbar a:hover{color:var(--accent)}
.topbar-list{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.topbar-list span{display:inline-flex;gap:7px;align-items:center}
.topbar-list svg{opacity:.75}

.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.scrolled{box-shadow:0 4px 22px rgba(10,26,47,.09)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:1.32rem;font-weight:900;letter-spacing:.16em;color:var(--navy)}
.brand-sub{font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:600}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 12px;font-size:.79rem;font-weight:600;letter-spacing:.05em;
  text-transform:uppercase;color:var(--navy-700);border-radius:var(--radius);transition:.16s;white-space:nowrap;
}
.nav a:hover{color:var(--accent-dark);background:var(--accent-soft)}
.nav a.active{color:var(--navy)}
.nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--accent)}
.header-cta{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);cursor:pointer;padding:0;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--navy);transition:.2s}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav-toggle.open span{background:transparent}
.nav-toggle.open span::before{transform:rotate(45deg);top:0}
.nav-toggle.open span::after{transform:rotate(-45deg);top:0}

/* ---------- hero ---------- */
.hero{position:relative;min-height:clamp(520px,72vh,760px);display:flex;align-items:center;background:var(--navy);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,17,32,.94) 0%,rgba(6,17,32,.78) 42%,rgba(6,17,32,.34) 100%)}
.hero .container{position:relative;z-index:2;padding-top:70px;padding-bottom:70px}
.hero-inner{max-width:940px;color:#e8eef6}
.hero h1{color:#fff;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent);white-space:nowrap}
.hero h1 .nowrap{white-space:nowrap}
.hero p{font-size:1.1rem;color:#b9c9dc;margin-bottom:30px;max-width:60ch}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.hero-tags span{
  font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;
  color:#dbe6f2;border:1px solid rgba(255,255,255,.28);padding:6px 12px;border-radius:100px;
}
.hero-scroll{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.6);font-size:.68rem;letter-spacing:.2em}

/* page hero (inner pages) */
.page-hero{position:relative;background:var(--navy);color:#fff;padding:clamp(56px,7vw,92px) 0 clamp(46px,5vw,66px);overflow:hidden}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,17,32,.86),rgba(6,17,32,.94))}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:12px}
.page-hero p{color:#b9c9dc;max-width:66ch;margin:0}
.breadcrumb{display:flex;gap:9px;align-items:center;font-size:.76rem;color:#8fa4bd;margin-bottom:16px;letter-spacing:.06em;text-transform:uppercase}
.breadcrumb a:hover{color:var(--accent)}

/* ---------- stat bar ---------- */
.statbar{background:var(--navy-800);color:#fff}
.statbar .grid{gap:0}
.stat{padding:30px 26px;border-right:1px solid rgba(255,255,255,.1)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:900;color:var(--accent);line-height:1}
.stat span{display:block;font-size:.8rem;color:#a9bccf;margin-top:8px;letter-spacing:.06em}
.stat small{display:block;font-size:.7rem;color:#7d93ab;margin-top:4px}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:.22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-2)}
.card-media{position:relative;aspect-ratio:4/3;background:#eef2f7;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-badge{
  position:absolute;top:12px;left:12px;background:rgba(10,26,47,.88);color:#fff;
  font-size:.65rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:100px;
}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:1.08rem;margin-bottom:8px}
.card-body p{font-size:.9rem;color:var(--steel);margin-bottom:14px}
.card-list{margin:0 0 16px;padding:0;list-style:none;font-size:.84rem;color:var(--steel)}
.card-list li{display:flex;gap:8px;align-items:flex-start;margin-bottom:6px}
.card-list li::before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%;margin-top:8px;flex:none}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy)}
.card:hover .card-foot{color:var(--accent-dark)}
.card-link-all{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);margin-top:8px}
.card-link-all:hover{color:var(--accent-dark)}
.card-flat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;transition:.2s}
.card-flat:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}
.card-flat h3{font-size:1.02rem;margin-bottom:10px}
.card-flat p{font-size:.88rem;color:var(--steel);margin:0}

/* icon tile */
.icon-tile{
  width:48px;height:48px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;flex:none;
}
.icon-tile svg{width:24px;height:24px}
.icon-tile.navy{background:#eaf0f8;color:var(--navy-600)}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff}
table.spec{width:100%;border-collapse:collapse;font-size:.88rem;min-width:520px}
table.spec th{
  background:var(--navy);color:#fff;text-align:left;padding:13px 16px;font-size:.72rem;
  letter-spacing:.12em;text-transform:uppercase;font-weight:700;white-space:nowrap;
}
table.spec td{padding:12px 16px;border-top:1px solid var(--line);color:#33465c}
table.spec tbody tr:nth-child(even){background:#fafbfd}
table.spec tbody tr:hover{background:var(--accent-soft)}
table.spec td strong{color:var(--navy)}

/* model chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.chips li{
  margin:0;font-size:.78rem;font-weight:600;font-family:'SFMono-Regular',Consolas,monospace;
  background:#f1f5fa;border:1px solid var(--line);color:var(--navy-700);padding:6px 11px;border-radius:var(--radius);
}
.chips.amber li{background:var(--accent-soft);border-color:#f6dfae;color:#7a5a00}

/* ---------- filter bar ---------- */
.filterbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:30px}
.filterbar .label{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted);margin-right:6px}
.chip-btn{
  padding:9px 16px;border:1px solid var(--line-2);background:#fff;border-radius:100px;cursor:pointer;
  font-size:.78rem;font-weight:600;color:var(--steel);transition:.16s;
}
.chip-btn:hover{border-color:var(--navy);color:var(--navy)}
.chip-btn.active{background:var(--navy);border-color:var(--navy);color:#fff}
[data-hidden="true"]{display:none!important}

/* ---------- accordion ---------- */
.acc{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-head{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 22px;background:#fff;border:0;cursor:pointer;
  text-align:left;transition:.16s;
}
.acc-head:hover{background:var(--bg-alt)}
.acc-num{font-size:.72rem;font-weight:800;color:var(--accent-dark);letter-spacing:.1em;width:32px;flex:none}
.acc-title{flex:1;font-weight:700;color:var(--navy);font-size:1rem}
.acc-title small{display:block;font-weight:500;color:var(--muted);font-size:.8rem;letter-spacing:0;margin-top:2px}
.acc-plus{width:22px;height:22px;position:relative;flex:none}
.acc-plus::before,.acc-plus::after{content:"";position:absolute;background:var(--navy);transition:.22s}
.acc-plus::before{left:0;top:10px;width:22px;height:2px}
.acc-plus::after{left:10px;top:0;width:2px;height:22px}
.acc-item.open .acc-plus::after{transform:rotate(90deg);opacity:0}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-panel-inner{padding:0 22px 26px 70px}
@media(max-width:640px){.acc-panel-inner{padding-left:22px}}

/* ---------- definition rows ---------- */
.dl{margin:0}
.dl > div{display:flex;gap:18px;padding:14px 0;border-bottom:1px dashed var(--line)}
.dl dt{flex:0 0 190px;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0}
.dl dd{margin:0;font-size:.92rem;color:#2c3f56}
@media(max-width:640px){.dl > div{flex-direction:column;gap:4px}.dl dt{flex:none}}

/* ---------- CTA band ---------- */
.cta-band{position:relative;background:var(--navy-800);color:#fff;overflow:hidden}
.cta-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,20,38,.96),rgba(7,20,38,.82))}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:#b4c6da;margin-bottom:26px;max-width:60ch}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-dark);color:#8ea3ba;font-size:.88rem;padding-top:clamp(48px,6vw,72px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:38px;padding-bottom:44px}
.site-footer h4{color:#fff;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:18px}
.site-footer a:hover{color:var(--accent)}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:9px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#7d93ab}
.footer-about{margin-top:16px;font-size:.85rem;line-height:1.7;max-width:38ch}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{display:flex;gap:10px;margin-bottom:11px;font-size:.85rem}
.footer-contact svg{flex:none;margin-top:3px;opacity:.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:22px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:.78rem;color:#7188a0}
.footer-bottom .legal{display:flex;gap:20px;flex-wrap:wrap}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy-700)}
.field label .req{color:#c0392b}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--line-2);border-radius:var(--radius);
  font-family:inherit;font-size:.92rem;color:#243649;background:#fff;transition:.16s;
}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,165,0,.16)}
.form-note{font-size:.78rem;color:var(--muted);margin-top:14px}
.form-status{margin-top:16px;font-size:.88rem;font-weight:600;display:none}
.form-status.show{display:block}
.form-status.ok{color:var(--ok)}
.form-status.warn{color:#b45309}

/* ---------- info panel ---------- */
.info-panel{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px}
.info-list{list-style:none;padding:0;margin:0}
.info-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line-2)}
.info-list li:last-child{border-bottom:0;padding-bottom:0}
.info-list .ic{width:38px;height:38px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--accent-dark);flex:none}
.info-list .ic svg{width:18px;height:18px}
.info-list b{display:block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.info-list span{font-size:.94rem;color:var(--navy-700);word-break:break-word}

/* ---------- three offices (contact page) ---------- */
.office-list{margin-top:8px;display:flex;flex-direction:column;gap:12px}
.office{padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.office-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin-bottom:3px}
.office-head b{font-size:.98rem;color:var(--navy-700)}
.office-role{font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-dark);
  background:rgba(240,112,0,.12);padding:2px 9px;border-radius:99px;white-space:nowrap}
.office-addr{font-size:.9rem;color:var(--muted);line-height:1.5;word-break:break-word}

/* ---------- office maps grid ---------- */
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.map-card{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#eef2f7}
.map-card-cap{padding:9px 13px;font-weight:600;font-size:.86rem;color:var(--navy-700);
  background:#fff;border-bottom:1px solid var(--line)}
.map-card iframe{display:block}
@media(max-width:1024px){.map-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.map-grid{grid-template-columns:1fr}}

/* ---------- placeholder notice ---------- */
.placeholder-note{
  display:flex;gap:12px;align-items:flex-start;background:#fff8e6;border:1px dashed #e6c667;
  border-radius:var(--radius);padding:14px 16px;font-size:.83rem;color:#7a5a00;
}
.placeholder-note svg{flex:none;margin-top:2px}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff}
.gallery img{aspect-ratio:4/3;object-fit:cover;width:100%;cursor:zoom-in;transition:transform .4s}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{padding:14px 16px;font-size:.84rem;color:var(--steel);border-top:1px solid var(--line)}
.gallery figcaption b{display:block;color:var(--navy);font-size:.9rem;margin-bottom:3px}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(5,13,25,.94);z-index:200;display:none;align-items:center;justify-content:center;padding:32px}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:82vh;object-fit:contain;border-radius:var(--radius)}
.lightbox-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#c9d6e4;font-size:.88rem}
.lightbox-close{position:absolute;top:22px;right:26px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:1.4rem;cursor:pointer;line-height:1}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.06);color:#fff;font-size:1.3rem;cursor:pointer}
.lightbox-nav.prev{left:24px}.lightbox-nav.next{right:24px}

/* ---------- flipbook ---------- */
.flipbook{display:grid;grid-template-columns:230px 1fr;gap:26px;align-items:start}
.flip-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;max-height:640px;overflow-y:auto}
.flip-side h4{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.flip-side button{
  display:block;width:100%;text-align:left;padding:9px 12px;border:0;background:transparent;border-radius:var(--radius);
  font-size:.84rem;color:var(--steel);cursor:pointer;font-family:'SFMono-Regular',Consolas,monospace;
}
.flip-side button:hover{background:var(--bg-alt);color:var(--navy)}
.flip-side button.active{background:var(--navy);color:#fff}
.flip-stage{background:#eef2f7;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;text-align:center}
.flip-stage img{max-height:70vh;width:auto;margin:0 auto;border:1px solid var(--line-2);background:#fff;box-shadow:var(--shadow)}
.flip-controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:16px}
.flip-controls .page-info{font-size:.82rem;color:var(--steel);font-variant-numeric:tabular-nums}
@media(max-width:900px){.flipbook{grid-template-columns:1fr}.flip-side{max-height:190px}}
@media(max-width:900px){.hero-scroll{display:none}}

/* ---------- misc ---------- */
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line-2);color:var(--navy-700);padding:7px 13px;border-radius:100px;background:#fff;
}
.badge.solid{background:var(--navy);color:#fff;border-color:var(--navy)}
.media-frame{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:#eef2f7}
.media-frame img{width:100%;height:100%;object-fit:cover}
.checklist{list-style:none;padding:0;margin:0}
.checklist li{position:relative;padding-left:28px;margin-bottom:11px;font-size:.93rem;color:#2c3f56}
.checklist li::before{
  content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;
  background:var(--accent-soft);border:1.5px solid var(--accent);
}
.checklist li::after{content:"";position:absolute;left:5px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent-dark)}
.divider-label{display:flex;align-items:center;gap:16px;margin:44px 0 26px}
.divider-label span{font-size:.72rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.divider-label::after{content:"";flex:1;height:1px;background:var(--line)}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.num-list{counter-reset:n;list-style:none;padding:0;margin:0}
.num-list li{counter-increment:n;position:relative;padding-left:46px;margin-bottom:20px}
.num-list li::before{
  content:counter(n,decimal-leading-zero);position:absolute;left:0;top:1px;
  font-size:.78rem;font-weight:800;color:var(--accent-dark);letter-spacing:.06em;
}
.num-list li b{display:block;color:var(--navy);margin-bottom:3px}
.num-list li p{font-size:.89rem;color:var(--steel);margin:0}

/* ---------- responsive ---------- */

/* Header compaction tiers: keep all six nav items visible (no hamburger)
   down to 900px by shrinking nav type, gaps, lang switch and CTA. */
@media(max-width:1180px){
  .header-inner{gap:14px}
  .nav{gap:2px}
  .nav a{padding:9px 9px;font-size:.745rem;letter-spacing:.03em}
  .header-cta{gap:9px}
  .header-cta .btn{padding:9px 14px;font-size:.74rem}
}
@media(max-width:1040px){
  .nav a{padding:8px 7px;font-size:.695rem;letter-spacing:.02em}
  .header-cta .btn{padding:8px 12px;font-size:.7rem}
}
@media(max-width:960px){
  .container{padding:0 18px}
  .nav{gap:1px}
  .nav a{padding:7px 5px;font-size:.645rem;letter-spacing:.01em}
  .header-cta .btn{padding:8px 10px;font-size:.66rem}
}

@media(max-width:1080px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:30px}
  .g-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .nav{
    position:fixed;inset:78px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:10px 18px 20px;
    transform:translateY(-130%);transition:transform .28s ease;box-shadow:var(--shadow);max-height:80vh;overflow-y:auto;
  }
  .nav.open{transform:none}
  .nav a{padding:14px 8px;border-bottom:1px solid var(--line);font-size:.9rem;white-space:normal;letter-spacing:.05em}
  .nav a.active::after{display:none}
  .nav-toggle{display:flex}
  .header-cta .btn{display:none}
}
@media(max-width:900px){
  .topbar .topbar-list li:nth-child(2){display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .g-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.1)}
}
@media(max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .topbar{display:none}
  .nav{inset:78px 0 auto 0}
  table.spec{font-size:.8rem}
  .cta-inner{flex-direction:column;align-items:flex-start}
}

@media print{
  .site-header,.topbar,.site-footer,.cta-band{display:none}
}

/* ============ manual search (spare parts catalogue) ============ */
.manual-search{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 6px}
.manual-search input{
  flex:1 1 320px;min-width:0;padding:12px 16px;font:inherit;font-size:.92rem;
  border:1px solid var(--line-2);border-radius:var(--radius);background:#fff;color:var(--ink);
}
.manual-search input:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(10,26,47,.08)}
.manual-results{margin-top:8px}
.manual-results p{margin-bottom:4px}
.manual-results .filterbar{margin-bottom:0}
.manual-results .chip-btn span.tiny{opacity:.6;margin-left:4px}
.filterbar .chip-btn span.tiny{opacity:.6;margin-left:4px;font-weight:600}


/* ---------- brand logo (TaikeSolution trademark) ---------- */
.brand{flex:0 0 auto}
.brand-logo{display:block;width:auto;height:34px;max-width:none;flex:0 0 auto}
.site-footer .brand-logo{height:40px}
@media(max-width:1240px){
  .site-header .brand-logo{height:30px}
}
@media(max-width:1180px){
  .site-header .brand-logo{height:26px}
}
@media(max-width:1040px){
  .site-header .brand-logo{height:23px}
}
@media(max-width:960px){
  .site-header .brand-logo{height:21px}
}
@media(max-width:900px){
  .site-header .brand-logo{height:30px}
  .site-footer .brand-logo{height:36px}
}
@media(max-width:640px){
  .site-header .brand-logo{height:26px}
  .site-footer .brand-logo{height:31px}
}
@media(max-width:480px){
  .header-inner{gap:12px}
  .site-header .brand-logo{height:22px}
  .site-footer .brand-logo{height:28px}
}