/* ==========================================================================
   Yawei Transformer — subpages (Products / Category / Detail)
   Loads after style.css and reuses its tokens & components
   ========================================================================== */

/* ---------- inner page hero ---------- */
.yw-pagehero{
  position:relative;background:var(--yw-navy-deep);
  background-image:linear-gradient(92deg,rgba(0,24,38,.94) 0%,rgba(0,32,51,.86) 46%,rgba(0,43,67,.55) 100%),var(--ph-img);
  background-size:cover;background-position:center 38%;
  color:#fff;
}
.yw-pagehero__in{padding-block:clamp(46px,5vw,74px) clamp(38px,4vw,58px)}
.yw-pagehero__title{
  font-size:clamp(2rem,3.6vw,3rem);font-weight:700;text-transform:uppercase;
  letter-spacing:-.01em;color:#fff;margin:10px 0 12px;
}
.yw-pagehero__code{
  font-family:var(--yw-font-display);font-size:.78rem;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--yw-amber);
}
.yw-pagehero__intro{max-width:56em;color:rgba(255,255,255,.85);font-size:.95rem}
.yw-crumbs{font-size:.82rem;color:rgba(255,255,255,.66);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.yw-crumbs a{color:rgba(255,255,255,.8)}
.yw-crumbs a:hover{color:var(--yw-amber)}
.yw-crumbs .sep{color:rgba(255,255,255,.35)}
.yw-crumbs [aria-current]{color:var(--yw-amber)}

/* ---------- two-column layout ---------- */
.yw-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:clamp(28px,3vw,48px);align-items:start;padding-block:clamp(40px,4.5vw,64px)}
.yw-side{position:sticky;top:calc(var(--yw-header-h) + 66px);display:grid;gap:22px}

.yw-sidebox{border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);background:#fff;overflow:hidden}
.yw-sidebox__title{
  font-family:var(--yw-font-display);font-size:.92rem;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;color:#fff;background:var(--yw-navy);
  padding:12px 18px;position:relative;
}
.yw-sidebox__title::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;background:var(--yw-amber)}
.yw-sidebox__body{padding:16px 18px}

.yw-sidesearch{display:flex;gap:8px}
.yw-sidesearch input{
  flex:1;min-width:0;min-height:44px;padding:8px 12px;font:inherit;font-size:.88rem;
  color:var(--yw-ink);border:1px solid var(--yw-line);border-radius:var(--yw-radius);
  transition:border-color var(--yw-fast);
}
.yw-sidesearch input:focus{outline:none;border-color:var(--yw-amber)}
.yw-sidesearch button{
  width:44px;flex:none;border:0;border-radius:var(--yw-radius);
  background:var(--yw-amber);color:var(--yw-navy-deep);display:flex;align-items:center;justify-content:center;
  transition:background var(--yw-fast);
}
.yw-sidesearch button:hover{background:var(--yw-amber-deep)}
.yw-sidesearch button svg{width:17px;height:17px;fill:currentColor}

.yw-sidecats a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 14px;font-size:.88rem;font-weight:500;color:var(--yw-text);
  border-left:3px solid transparent;transition:background var(--yw-fast),color var(--yw-fast),border-color var(--yw-fast);
}
.yw-sidecats a::after{
  content:"";width:6px;height:6px;flex:none;background:var(--yw-line);
  clip-path:polygon(0 0,100% 50%,0 100%);transition:background var(--yw-fast);
}
.yw-sidecats a:hover{background:var(--yw-bg);color:var(--yw-navy);border-left-color:var(--yw-line)}
.yw-sidecats a.is-current{background:var(--yw-bg);color:var(--yw-navy);font-weight:600;border-left-color:var(--yw-amber)}
.yw-sidecats a.is-current::after{background:var(--yw-amber)}

.yw-siderec{display:grid;gap:14px}
.yw-siderec__item{display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:start}
.yw-siderec__img{display:block;width:64px;height:64px;border:1px solid var(--yw-line);border-radius:6px;overflow:hidden;background:#fff}
.yw-siderec__img img{width:100%;height:100%;object-fit:contain;padding:5px;transition:transform var(--yw-med)}
.yw-siderec__item:hover .yw-siderec__img img{transform:scale(1.08)}
.yw-siderec__title{
  font-family:var(--yw-font-body);font-weight:600;font-size:.85rem;line-height:1.4;color:var(--yw-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.yw-siderec__title a{color:inherit}
.yw-siderec__title a:hover{color:var(--yw-blue)}
.yw-siderec__text{font-size:.78rem;color:var(--yw-text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:3px}

/* sidebar mini form */
.yw-sideform{display:grid;gap:10px}
.yw-sideform input,.yw-sideform textarea{
  width:100%;font:inherit;font-size:.88rem;color:var(--yw-ink);
  background:#fff;border:1px solid var(--yw-line);border-radius:var(--yw-radius);padding:9px 12px;
}
.yw-sideform textarea{resize:vertical;min-height:74px}
.yw-sideform input:focus,.yw-sideform textarea:focus{outline:none;border-color:var(--yw-amber)}
.yw-sideform .yw-btn{justify-content:center;min-height:44px;padding:10px 18px;font-size:.88rem}
.yw-sideform__note{font-size:.78rem;color:var(--yw-text);min-height:1.1em}

/* mobile sidebar trigger */
.yw-sidebtn{
  display:none;width:100%;min-height:52px;margin-bottom:18px;
  align-items:center;justify-content:space-between;gap:12px;
  background:var(--yw-navy);color:#fff;border:0;border-radius:var(--yw-radius);
  padding:12px 18px;font-family:var(--yw-font-display);font-size:.95rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;
}
.yw-sidebtn svg{width:14px;height:14px;fill:var(--yw-amber);transition:transform var(--yw-med)}
.yw-sidebtn.is-open svg{transform:rotate(180deg)}
.yw-sidepanel{grid-column:1/-1}

/* ==========================================================================
   PRODUCTS PAGE
   ========================================================================== */
.yw-selhelper{
  border:1px solid var(--yw-line);border-left:4px solid var(--yw-amber);
  border-radius:var(--yw-radius-lg);background:#fff;
  padding:clamp(20px,2.5vw,30px) clamp(20px,2.5vw,30px);
  margin-bottom:clamp(36px,4vw,54px);
}
.yw-selhelper__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.yw-selhelper__title{font-size:1.15rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy)}
.yw-selhelper__hint{font-size:.82rem;color:var(--yw-text)}
.yw-selhelper__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.yw-selhelper__group label{
  display:block;font-family:var(--yw-font-display);font-size:.74rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--yw-amber-deep);margin-bottom:8px;
}
.yw-selhelper__group select{
  width:100%;min-height:46px;font:inherit;font-size:.88rem;color:var(--yw-ink);
  border:1px solid var(--yw-line);border-radius:var(--yw-radius);padding:8px 34px 8px 12px;
  appearance:none;cursor:pointer;background:#fff;
  background-image:linear-gradient(45deg,transparent 50%,var(--yw-blue) 50%),linear-gradient(135deg,var(--yw-blue) 50%,transparent 50%);
  background-position:calc(100% - 19px) 55%,calc(100% - 13px) 55%;background-size:6px 6px;background-repeat:no-repeat;
}
.yw-selhelper__group select:focus{outline:none;border-color:var(--yw-amber)}
.yw-selhelper__cta{display:flex;align-items:flex-end}
.yw-selhelper__cta .yw-btn{width:100%;justify-content:center}

.yw-catgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.yw-catcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--yw-line);
  border-radius:var(--yw-radius-lg);overflow:hidden;
  transition:box-shadow var(--yw-med) var(--yw-ease),transform var(--yw-med) var(--yw-ease);
}
.yw-catcard:hover{box-shadow:var(--yw-shadow-lg);transform:translateY(-5px)}
.yw-catcard__img{display:block;aspect-ratio:1/1.05;background:#fff;border-bottom:1px solid var(--yw-line);overflow:hidden;position:relative}
.yw-catcard__img img{width:100%;height:100%;object-fit:cover;transition:transform var(--yw-med) var(--yw-ease)}
.yw-catcard:hover .yw-catcard__img img{transform:scale(1.06)}
.yw-catcard__img::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56%;
  background:linear-gradient(to top,rgba(0,24,38,.5),rgba(0,24,38,0));opacity:0;transition:opacity var(--yw-med);
}
.yw-catcard:hover .yw-catcard__img::after{opacity:1}
.yw-catcard__body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
.yw-catcard__title{
  font-size:1.08rem;font-weight:600;text-transform:uppercase;letter-spacing:.01em;color:var(--yw-navy);
  padding-bottom:10px;position:relative;
}
.yw-catcard__title::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--yw-amber)}
.yw-catcard__text{font-size:.88rem;color:var(--yw-text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.yw-catcard .yw-morelink{margin-top:auto;align-self:flex-start}

/* ==========================================================================
   CATEGORY PAGE
   ========================================================================== */
.yw-catintro{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(22px,3vw,40px);align-items:start}
.yw-catintro__img{border-radius:var(--yw-radius-lg);overflow:hidden;border:1px solid var(--yw-line);background:#fff}
.yw-catintro__img img{width:100%;aspect-ratio:453/407;object-fit:cover}
.yw-catintro h1{
  font-size:clamp(1.75rem,2.8vw,2.4rem);font-weight:600;text-transform:uppercase;
  color:var(--yw-navy);margin-bottom:16px;
}
.yw-catintro__text p{font-size:.95rem;margin-bottom:12px}
.yw-catintro__text strong{color:var(--yw-navy)}
.yw-scope{
  margin-top:16px;border:1px dashed rgba(0,94,140,.4);border-radius:var(--yw-radius);
  background:rgba(0,94,140,.05);padding:14px 18px;
  display:flex;gap:26px;flex-wrap:wrap;align-items:center;
}
.yw-scope__item{display:grid;gap:2px}
.yw-scope__item span{font-family:var(--yw-font-display);font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--yw-text)}
.yw-scope__item strong{font-family:var(--yw-font-display);font-size:1.05rem;font-weight:600;color:var(--yw-navy)}
.yw-catintro .yw-btn{margin-top:18px}

.yw-h2{
  display:flex;align-items:center;gap:18px;margin:clamp(44px,5vw,64px) 0 clamp(22px,2.5vw,32px);
}
.yw-h2__line{flex:1;height:1px;background:var(--yw-line)}
.yw-h2__text{
  font-size:clamp(1.35rem,2.2vw,1.8rem);font-weight:600;text-transform:uppercase;
  color:var(--yw-navy);text-align:center;letter-spacing:-.005em;
}
.yw-h2__text--sm{font-size:clamp(1.15rem,1.8vw,1.4rem)}

.yw-catvideo{max-width:880px;margin-inline:auto}
.yw-catvideo .yw-video img{aspect-ratio:16/9}

/* product list */
.yw-plist{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.yw-pcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);overflow:hidden;transition:box-shadow var(--yw-med),transform var(--yw-med)}
.yw-pcard:hover{box-shadow:var(--yw-shadow-lg);transform:translateY(-4px)}
.yw-pcard__img{display:block;aspect-ratio:363/290;background:#fff;border-bottom:1px solid var(--yw-line)}
.yw-pcard__img img{width:100%;height:100%;object-fit:contain;padding:16px;transition:transform var(--yw-med)}
.yw-pcard:hover .yw-pcard__img img{transform:scale(1.05)}
.yw-pcard__body{display:flex;flex-direction:column;gap:10px;padding:16px 18px 18px;flex:1}
.yw-pcard__title{
  font-family:var(--yw-font-body);font-weight:600;font-size:.9rem;line-height:1.45;color:var(--yw-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em;
}
.yw-pcard__title a{color:inherit}
.yw-pcard__title a:hover{color:var(--yw-blue)}
.yw-pcard .yw-morelink{margin-top:auto;align-self:flex-start}

.yw-pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:clamp(30px,3.5vw,44px)}
.yw-pagination a,.yw-pagination span{
  min-width:46px;height:46px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 14px;border:1px solid var(--yw-line);border-radius:var(--yw-radius);
  font-family:var(--yw-font-display);font-size:.92rem;font-weight:600;color:var(--yw-navy);
  transition:background var(--yw-fast),color var(--yw-fast),border-color var(--yw-fast);
}
.yw-pagination a:hover{border-color:var(--yw-navy);background:var(--yw-bg)}
.yw-pagination span.is-current{background:var(--yw-navy);border-color:var(--yw-navy);color:#fff}
.yw-pagination .yw-pagegap{border:0;color:var(--yw-text)}

/* advantages split */
.yw-adv{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,3vw,44px);align-items:center}
.yw-adv__checks{display:grid;gap:18px}
.yw-adv__check{display:grid;grid-template-columns:26px 1fr;gap:14px}
.yw-adv__check svg{width:22px;height:22px;fill:var(--yw-amber);margin-top:3px}
.yw-adv__check p{font-size:.93rem;line-height:1.75}
.yw-adv__check strong{color:var(--yw-navy)}
.yw-adv__img{border-radius:var(--yw-radius-lg);overflow:hidden;border:1px solid var(--yw-line)}
.yw-adv__img img{width:100%;aspect-ratio:814/611;object-fit:cover}

/* types */
.yw-types{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,3vw,44px);align-items:start}
.yw-types__img{border-radius:var(--yw-radius-lg);overflow:hidden;border:1px solid var(--yw-line);position:sticky;top:calc(var(--yw-header-h) + 66px)}
.yw-types__img img{width:100%;aspect-ratio:2856/2142;object-fit:cover}
.yw-types h3{font-size:1.1rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);margin:26px 0 10px}
.yw-types h3:first-child{margin-top:0}
.yw-types p{font-size:.93rem;margin-bottom:10px}
.yw-types strong{color:var(--yw-navy)}

/* applications */
.yw-apps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:app}
.yw-apps__item{
  counter-increment:app;position:relative;background:#fff;border:1px solid var(--yw-line);
  border-top:3px solid var(--yw-navy);border-radius:0 0 var(--yw-radius-lg) var(--yw-radius-lg);
  padding:24px 22px 26px;transition:border-color var(--yw-med),transform var(--yw-med),box-shadow var(--yw-med);
}
.yw-apps__item:hover{border-top-color:var(--yw-amber);transform:translateY(-4px);box-shadow:var(--yw-shadow)}
.yw-apps__item::before{
  content:"0" counter(app);font-family:var(--yw-font-display);font-size:2rem;font-weight:700;
  color:rgba(0,94,140,.16);line-height:1;display:block;margin-bottom:10px;
}
.yw-apps__item h3{font-size:1rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);margin-bottom:8px}
.yw-apps__item p{font-size:.88rem}

/* custom process 8 steps */
.yw-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.yw-step{
  position:relative;background:var(--yw-bg);border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);
  padding:22px 20px 24px;counter-increment:step;
}
.yw-step::before{
  content:"0" counter(step);font-family:var(--yw-font-display);font-size:.8rem;font-weight:700;
  color:var(--yw-navy);background:#fff;border:1px solid var(--yw-line);border-radius:4px;
  padding:3px 9px;display:inline-block;margin-bottom:14px;
}
.yw-step h3{font-size:.98rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);margin-bottom:8px}
.yw-step p{font-size:.85rem}

/* factory */
.yw-factory__text{font-size:.95rem;max-width:60em;margin-bottom:26px}
.yw-factory__text strong{color:var(--yw-navy)}
.yw-factorygrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.yw-ffig{display:grid;gap:10px}
.yw-ffig img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--yw-radius);border:1px solid var(--yw-line);transition:transform var(--yw-med),box-shadow var(--yw-med)}
.yw-ffig:hover img{transform:translateY(-3px);box-shadow:var(--yw-shadow)}
.yw-ffig figcaption{
  font-family:var(--yw-font-display);font-size:.82rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--yw-navy);text-align:center;
}

/* certifications */
.yw-certgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.yw-certgrid a{
  display:block;border:1px solid var(--yw-line);border-radius:var(--yw-radius);
  overflow:hidden;background:#fff;transition:box-shadow var(--yw-med),transform var(--yw-med);
}
.yw-certgrid a:hover{box-shadow:var(--yw-shadow);transform:translateY(-3px)}
.yw-certgrid img{width:100%;aspect-ratio:400/518;object-fit:cover}

/* after sales */
.yw-after{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.yw-after__card{background:#fff;border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);padding:24px 22px}
.yw-after__card h3{
  font-size:1rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);
  margin-bottom:10px;padding-bottom:10px;position:relative;
}
.yw-after__card h3::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--yw-amber)}
.yw-after__card p{font-size:.86rem;margin-bottom:6px}
.yw-after__card a{font-weight:500}

/* FAQ accordion */
.yw-faq{display:grid;gap:12px}
.yw-faq__item{border:1px solid var(--yw-line);border-radius:var(--yw-radius);background:#fff;overflow:hidden}
.yw-faq__item.is-open{border-color:rgba(0,94,140,.45);box-shadow:var(--yw-shadow)}
.yw-faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:0;text-align:left;
  font-family:var(--yw-font-body);font-size:.95rem;font-weight:600;color:var(--yw-ink);
}
.yw-faq__q:hover{color:var(--yw-navy)}
.yw-faq__q svg{width:16px;height:16px;flex:none;fill:var(--yw-amber-deep);transition:transform var(--yw-med)}
.yw-faq__item.is-open .yw-faq__q svg{transform:rotate(180deg)}
.yw-faq__a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height var(--yw-med) var(--yw-ease),padding var(--yw-med)}
.yw-faq__item.is-open .yw-faq__a{padding:2px 20px 18px;max-height:1400px}
.yw-faq__a p{font-size:.9rem;margin-bottom:10px}

/* SEO bottom */
.yw-seobottom{
  margin-top:clamp(40px,4.5vw,60px);border-top:1px solid var(--yw-line);padding-top:22px;
  font-size:.84rem;color:var(--yw-text);
}
.yw-seobottom a{color:var(--yw-blue);margin:0 4px}
.yw-seobottom a:hover{color:var(--yw-navy)}

/* ==========================================================================
   DETAIL PAGE
   ========================================================================== */
.yw-pd-top{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(26px,3vw,44px);align-items:start}

.yw-gallery{display:grid;gap:12px}
.yw-gallery__main{
  position:relative;aspect-ratio:4/3;background:#fff;border:1px solid var(--yw-line);
  border-radius:var(--yw-radius-lg);overflow:hidden;cursor:zoom-in;
}
.yw-gallery__main img{width:100%;height:100%;object-fit:contain;padding:26px}
.yw-gallery__count{
  position:absolute;right:12px;bottom:12px;background:rgba(0,24,38,.72);color:#fff;
  font-family:var(--yw-font-display);font-size:.78rem;letter-spacing:.1em;
  padding:4px 11px;border-radius:4px;
}
.yw-gallery__thumbs{display:flex;gap:10px}
.yw-gallery__thumb{
  width:86px;aspect-ratio:4/3;flex:none;border:2px solid var(--yw-line);border-radius:6px;
  overflow:hidden;background:#fff;padding:0;transition:border-color var(--yw-fast);
}
.yw-gallery__thumb img{width:100%;height:100%;object-fit:contain;padding:6px}
.yw-gallery__thumb:hover{border-color:var(--yw-blue)}
.yw-gallery__thumb.is-active{border-color:var(--yw-amber)}

.yw-pd-info h1{
  font-size:clamp(1.5rem,2.4vw,2.05rem);font-weight:600;text-transform:uppercase;
  color:var(--yw-navy);margin-bottom:16px;
}
.yw-pd-info__intro{font-size:.95rem;padding-bottom:18px;border-bottom:1px solid var(--yw-line);margin-bottom:18px}
.yw-pd-specs{display:grid;grid-template-columns:1fr 1fr;gap:2px 26px;margin-bottom:22px}
.yw-pd-spec{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--yw-line);font-size:.88rem}
.yw-pd-spec dt{color:var(--yw-text)}
.yw-pd-spec dd{margin:0;font-weight:600;color:var(--yw-navy);text-align:right}
.yw-pd-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.yw-pd-ctas .yw-btn{flex:1;min-width:200px;justify-content:center}
.yw-pd-contact{display:flex;gap:20px;flex-wrap:wrap;font-size:.85rem}
.yw-pd-contact a{display:inline-flex;align-items:center;gap:8px;font-weight:500}
.yw-pd-contact svg{width:15px;height:15px;fill:var(--yw-amber-deep)}

/* tabs */
.yw-tabs{display:flex;gap:0;border-bottom:2px solid var(--yw-line);margin-bottom:28px}
.yw-tab{
  padding:13px 26px;background:none;border:0;border-bottom:3px solid transparent;margin-bottom:-2px;
  font-family:var(--yw-font-display);font-size:.95rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--yw-text);
  transition:color var(--yw-fast),border-color var(--yw-fast);
}
.yw-tab:hover{color:var(--yw-navy)}
.yw-tab.is-active{color:var(--yw-navy);border-bottom-color:var(--yw-amber)}
.yw-tabpane{display:none}
.yw-tabpane.is-active{display:block;animation:ywFadeIn 300ms var(--yw-ease)}
@keyframes ywFadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* sticky anchors */
.yw-anchors{
  position:sticky;top:var(--yw-header-h);z-index:60;
  background:rgba(255,255,255,.96);backdrop-filter:blur(6px);
  border-block:1px solid var(--yw-line);margin-block:26px 30px;
}
.yw-anchors__in{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.yw-anchors__in::-webkit-scrollbar{display:none}
.yw-anchor{
  flex:none;padding:12px 18px;background:none;border:0;position:relative;
  font-family:var(--yw-font-display);font-size:.85rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--yw-text);transition:color var(--yw-fast);
}
.yw-anchor::after{content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:3px;background:var(--yw-amber);transform:scaleX(0);transition:transform var(--yw-fast)}
.yw-anchor:hover{color:var(--yw-navy)}
.yw-anchor.is-active{color:var(--yw-navy)}
.yw-anchor.is-active::after{transform:scaleX(1)}

/* article content (detail) */
.yw-art{font-size:.94rem}
.yw-art p{margin-bottom:12px}
.yw-art img{border-radius:var(--yw-radius);border:1px solid var(--yw-line)}
.yw-art h3{
  font-size:1.2rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);
  margin:30px 0 14px;padding-left:14px;position:relative;
}
.yw-art h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;background:var(--yw-amber);border-radius:2px}
.yw-art h4{font-size:1rem;font-weight:600;color:var(--yw-navy);margin:22px 0 8px}
.yw-art strong{color:var(--yw-navy)}
.yw-art ul{list-style:none;display:grid;gap:8px;margin:12px 0 16px}
.yw-art ul li{padding-left:22px;position:relative;font-size:.92rem}
.yw-art ul li::before{content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;background:var(--yw-amber);clip-path:polygon(0 0,100% 50%,0 100%)}
.yw-art .yw-video{max-width:760px;margin:22px auto}
.yw-art .yw-video img{border-radius:var(--yw-radius-lg)}
.yw-art .yw-art-img{display:block;width:auto;max-width:min(640px,100%);margin:14px auto}
.yw-art__full{width:100%;max-width:none}

/* standards list */
.yw-standards{display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;counter-reset:std;margin:14px 0}
.yw-standards li{
  counter-increment:std;list-style:none;padding:10px 14px 10px 44px;position:relative;
  background:var(--yw-bg);border-radius:var(--yw-radius);font-size:.88rem;
}
.yw-standards li::before{
  content:counter(std,decimal-leading-zero);position:absolute;left:14px;top:50%;transform:translateY(-50%);
  font-family:var(--yw-font-display);font-weight:700;font-size:.85rem;color:var(--yw-amber-deep);
}

/* parameter tables */
.yw-tablewrap{
  border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);overflow:auto;
  background:#fff;margin:16px 0 26px;max-width:100%;
}
.yw-table{width:100%;border-collapse:collapse;min-width:720px}
.yw-table caption{
  caption-side:top;text-align:left;font-family:var(--yw-font-display);font-weight:600;font-size:.95rem;
  letter-spacing:.04em;text-transform:uppercase;color:#fff;background:var(--yw-navy);
  padding:12px 16px;
}
.yw-table th,.yw-table td{
  padding:10px 14px;font-size:.86rem;text-align:center;vertical-align:middle;
  border:1px solid var(--yw-line);
}
.yw-table thead th{background:var(--yw-bg);color:var(--yw-navy);font-weight:600}
.yw-table tbody tr:nth-child(even){background:#FAFBFC}
.yw-table tbody tr:hover{background:rgba(245,166,35,.08)}
.yw-table td[rowspan]{background:var(--yw-bg);font-weight:500;color:var(--yw-navy)}

/* OEM timeline */
.yw-oemintro{max-width:60em;margin-bottom:24px}
.yw-oemflow{margin-bottom:30px}
.yw-timeline{position:relative;display:grid;gap:0;counter-reset:tl}
.yw-timeline::before{content:"";position:absolute;left:23px;top:8px;bottom:8px;width:2px;background:var(--yw-line)}
.yw-tl{position:relative;padding:0 0 26px 64px;counter-increment:tl}
.yw-tl:last-child{padding-bottom:0}
.yw-tl::before{
  content:"0" counter(tl);position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;background:#fff;border:2px solid var(--yw-line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--yw-font-display);font-size:.95rem;font-weight:700;color:var(--yw-navy);
  transition:background var(--yw-fast),border-color var(--yw-fast),color var(--yw-fast);
}
.yw-tl:hover::before{background:var(--yw-amber);border-color:var(--yw-amber);color:var(--yw-navy-deep)}
.yw-tl h3{font-size:1.02rem;font-weight:600;text-transform:uppercase;color:var(--yw-navy);margin:12px 0 8px}
.yw-tl p{font-size:.9rem;margin-bottom:8px}

/* quality blocks */
.yw-quality{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(22px,3vw,40px);align-items:start}
.yw-quality__img img{width:100%;aspect-ratio:10/7;object-fit:cover;border-radius:var(--yw-radius-lg);border:1px solid var(--yw-line)}
.yw-qblock{border-left:3px solid var(--yw-amber);background:var(--yw-bg);border-radius:0 var(--yw-radius) var(--yw-radius) 0;padding:16px 20px;margin-bottom:14px}
.yw-qblock h4{margin:0 0 6px;font-size:.95rem}
.yw-qblock p{font-size:.88rem}

/* workshops alternating */
.yw-shop{display:grid;gap:clamp(30px,4vw,52px)}
.yw-shop__row{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(20px,3vw,36px);align-items:center}
.yw-shop__row--rev{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.yw-shop__row--rev .yw-shop__img{order:-1}
.yw-shop__img img{width:100%;aspect-ratio:10/6.5;object-fit:cover;border-radius:var(--yw-radius-lg);border:1px solid var(--yw-line)}
.yw-shop__row--rev .yw-shop__img img{aspect-ratio:10/7}
.yw-shop__cap{font-family:var(--yw-font-display);font-size:.86rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--yw-navy);margin-bottom:8px;display:block}
.yw-shop__text{font-size:.9rem}

/* shipping */
.yw-shippairs{display:grid;gap:26px;margin-top:20px}
.yw-shippair h4{margin-bottom:10px}
.yw-shippair__imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.yw-shippair__imgs img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--yw-radius);border:1px solid var(--yw-line)}
.yw-cases{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
.yw-case{border:1px solid var(--yw-line);border-radius:var(--yw-radius-lg);overflow:hidden;background:#fff}
.yw-case img{width:100%;aspect-ratio:4/3;object-fit:cover}
.yw-case p{padding:14px 16px;font-size:.88rem;margin:0}

/* main products strip */
.yw-mpgrid{display:grid;grid-template-columns:repeat(8,1fr);gap:14px}
.yw-mpgrid a{
  display:grid;gap:8px;border:1px solid var(--yw-line);border-radius:var(--yw-radius);
  overflow:hidden;background:#fff;padding:8px;text-align:center;
  transition:box-shadow var(--yw-med),transform var(--yw-med);
}
.yw-mpgrid a:hover{box-shadow:var(--yw-shadow);transform:translateY(-3px)}
.yw-mpgrid img{width:100%;aspect-ratio:1/1;object-fit:contain}
.yw-mpgrid span{font-family:var(--yw-font-display);font-size:.72rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--yw-navy);line-height:1.35}

/* prev / next */
.yw-prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(34px,4vw,48px)}
.yw-prevnext a{
  display:grid;gap:4px;padding:16px 18px;border:1px solid var(--yw-line);border-radius:var(--yw-radius);
  background:#fff;transition:border-color var(--yw-fast),background var(--yw-fast);
}
.yw-prevnext a:hover{border-color:var(--yw-navy);background:var(--yw-bg)}
.yw-prevnext small{font-family:var(--yw-font-display);font-size:.74rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--yw-amber-deep)}
.yw-prevnext p{margin:0;font-size:.88rem;font-weight:500;color:var(--yw-navy);line-height:1.45}
.yw-prevnext .is-next{text-align:right}

/* related */
.yw-related{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

/* lightbox */
.yw-lightbox{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  background:rgba(0,18,29,.9);padding:clamp(16px,4vw,60px);
}
.yw-lightbox[hidden]{display:none}
.yw-lightbox img{
  max-width:100%;max-height:100%;background:#fff;border-radius:var(--yw-radius-lg);
  box-shadow:0 24px 80px rgba(0,0,0,.5);padding:18px;
}
.yw-lightbox__close{
  position:absolute;top:18px;right:22px;width:46px;height:46px;border:0;border-radius:50%;
  background:rgba(255,255,255,.14);color:#fff;font-size:1.15rem;cursor:pointer;
  transition:background var(--yw-fast);
}
.yw-lightbox__close:hover{background:var(--yw-amber);color:var(--yw-navy-deep)}

/* ==========================================================================
   RESPONSIVE — TABLET
   ========================================================================== */
@media (max-width:1199px){
  .yw-layout{grid-template-columns:1fr}
  .yw-side{position:static;display:none}
  .yw-side.is-open{display:grid}
  .yw-sidebtn{display:flex}

  .yw-catgrid{grid-template-columns:repeat(2,1fr)}
  .yw-plist{grid-template-columns:repeat(2,1fr)}
  .yw-adv,.yw-types,.yw-quality{grid-template-columns:1fr}
  .yw-types__img{position:static}
  .yw-apps{grid-template-columns:repeat(2,1fr)}
  .yw-steps{grid-template-columns:repeat(2,1fr)}
  .yw-factorygrid{grid-template-columns:repeat(2,1fr)}
  .yw-certgrid{grid-template-columns:repeat(3,1fr)}
  .yw-after{grid-template-columns:repeat(2,1fr)}
  .yw-pd-top{grid-template-columns:1fr}
  .yw-gallery{max-width:560px}
  .yw-mpgrid{grid-template-columns:repeat(4,1fr)}
  .yw-related{grid-template-columns:repeat(2,1fr)}
  .yw-cases{grid-template-columns:1fr}
}

/* ==========================================================================
   RESPONSIVE — MOBILE
   ========================================================================== */
@media (max-width:767px){
  .yw-catgrid{grid-template-columns:1fr}
  .yw-plist{grid-template-columns:1fr}
  .yw-apps{grid-template-columns:1fr}
  .yw-steps{grid-template-columns:1fr}
  .yw-factorygrid{grid-template-columns:1fr}
  .yw-certgrid{grid-template-columns:repeat(2,1fr)}
  .yw-after{grid-template-columns:1fr}
  .yw-catintro{grid-template-columns:1fr}
  .yw-scope{gap:16px}
  .yw-pd-specs{grid-template-columns:1fr}
  .yw-pd-ctas .yw-btn{min-width:0}
  .yw-standards{grid-template-columns:1fr}
  .yw-shop__row,.yw-shop__row--rev{grid-template-columns:1fr}
  .yw-shop__row--rev .yw-shop__img{order:0}
  .yw-shippair__imgs{grid-template-columns:1fr}
  .yw-mpgrid{grid-template-columns:repeat(2,1fr)}
  .yw-related{grid-template-columns:1fr}
  .yw-prevnext{grid-template-columns:1fr}
  .yw-prevnext .is-next{text-align:left}
  .yw-tabs{overflow-x:auto;scrollbar-width:none}
  .yw-tab{white-space:nowrap;padding:12px 18px}
  .yw-faq__q{font-size:.88rem;padding:14px 16px}
  .yw-faq__a{padding:0 16px}
  .yw-faq__item.is-open .yw-faq__a{padding:2px 16px 16px}
}

@media (prefers-reduced-motion:reduce){
  .yw-tabpane.is-active,.yw-faq__a{animation:none;transition:none}
}