@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-Light.ttf') format('truetype');font-weight:300;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-Regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-Medium.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-SemiBold.ttf') format('truetype');font-weight:600;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-Bold.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-ExtraBold.ttf') format('truetype');font-weight:800;font-style:normal;font-display:swap}
@font-face {font-family:'Alan Sans';src:url('../assets/fonts/AlanSans-Black.ttf') format('truetype');font-weight:900;font-style:normal;font-display:swap}
/* BUGSHAN STEEL Static v2 — bilingual additions and enhancement layer. */
html[dir="ltr"] body {direction:ltr}
body, button, input, textarea, select, .brand, .main-nav a {font-family:'Alan Sans',Tahoma,Arial,sans-serif}
.brand {height:auto;min-width:82px;white-space:normal}
.brand__logo {width:92px;height:82px;object-fit:contain;display:block}
.header__inner {gap:24px;min-height:93px}
.brand--footer {display:inline-flex;background:#FFFFFF;border-radius:12px;padding:7px 13px}
.brand--footer .brand__logo {width:122px;height:112px}
.lang-switch {display:inline-flex;align-items:center;gap:7px;flex-shrink:0;border:1px solid var(--border);border-radius:100px;padding:6px 11px;color:var(--primary-dark);font-size:12px;line-height:1.25;font-weight:700;background:#F8FBFD;transition:background .2s,transform .2s,border-color .2s}
.lang-switch:hover {background:#E8F2F6;border-color:#A9C9D4;transform:translateY(-1px)}
.lang-switch img {height:27px;width:27px;object-fit:contain;border-radius:50%;display:block}
.footer__social {display:flex;gap:9px;align-items:center;flex-wrap:wrap;justify-content:center}
.footer__social .social-icon {width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;color:#DDEFF4;background:#17475C;border:1px solid rgba(255,255,255,.14);border-radius:10px;line-height:1}
.footer__social .social-icon svg {width:18px;height:18px}
.footer__social a.social-icon {transition:background .2s,color .2s,transform .2s}
.footer__social a.social-icon:hover {color:#fff;background:var(--primary-light);transform:translateY(-2px)}
.footer__social span.social-icon {opacity:.72;cursor:default}
html[dir="rtl"] .float-actions {right:21px;left:auto;align-items:flex-end}
html[dir="ltr"] .float-actions {left:21px;right:auto;align-items:flex-start}
html[dir="rtl"] .back-top {left:22px;right:auto}
html[dir="ltr"] .back-top {right:22px;left:auto}
html[dir="ltr"] .catalog-search>.icon {left:17px;right:auto}
html[dir="ltr"] .catalog-search input {padding:11px 17px 11px 49px}
html[dir="ltr"] .catalog-count {text-align:right}
html[dir="ltr"] .certificate-disclaimer {border-left:3px solid var(--primary-light);border-right:none}
html[dir="ltr"] .brand__logo {transform:none}
html[dir="ltr"] .about-teaser__caption {left:-18px;right:auto}
html[dir="ltr"] .quick-facts__grid>div {border-left:none;border-right:1px solid var(--border)}
html[dir="ltr"] .quick-facts__grid>div:last-child {border-right:none}
html[dir="ltr"] .page-banner__art {right:0;left:auto;transform:scaleX(-1)}
html[dir="ltr"] .hero__year {right:20px;left:auto}
html[dir="ltr"] .hero__year span {direction:ltr}
html[dir="ltr"] .product-card__body, html[dir="ltr"] .certificate-card__body {text-align:left}
html[dir="ltr"] .contact-method span:last-child {align-items:flex-start}
html[dir="ltr"] .goal-item span {direction:ltr}
html[dir="ltr"] .topbar__divider {border-right:none;border-left:1px solid rgba(255,255,255,.25)}
html[dir="ltr"] .footer__contact {padding:0}
html[dir="ltr"] .skip-link {left:18px;right:auto}
/* Keep email and phone sequences readable in either writing direction. */
.footer__contact a[href^="mailto"], .contact-method[href^="mailto"] {unicode-bidi:plaintext}
/* Scroll reveal effect with data-aos, entirely local and with no external CDN dependency. */
@media (prefers-reduced-motion:no-preference) {
 html.aos-ready [data-aos]:not(.aos-animate) {opacity:0;pointer-events:none}
 html.aos-ready [data-aos="fade-up"]:not(.aos-animate) {transform:translate3d(0,30px,0)}
 html.aos-ready [data-aos="fade-down"]:not(.aos-animate) {transform:translate3d(0,-25px,0)}
 html.aos-ready [data-aos="fade-left"]:not(.aos-animate) {transform:translate3d(30px,0,0)}
 html.aos-ready [data-aos="fade-right"]:not(.aos-animate) {transform:translate3d(-30px,0,0)}
 html.aos-ready [data-aos="zoom-in"]:not(.aos-animate) {transform:scale(.94)}
 html.aos-ready [data-aos] {transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--aos-delay,0ms)}
 html.aos-ready [data-aos].aos-animate {opacity:1;transform:none;pointer-events:auto}
}
/* Entrance splash, now controlled for every page load by v3 logic below. */
.splash-screen[hidden] {display:none!important}
.splash-screen {position:fixed;inset:0;z-index:2000;display:grid;place-items:center;background:linear-gradient(135deg,#FFFFFF 15%,#E8F2F6 60%,#F5F8FA);padding:25px}
.splash-screen__content {display:flex;flex-direction:column;align-items:center;gap:17px;text-align:center;animation:splash-enter .58s ease-out both}
.splash-screen__content img {width:150px;height:auto;object-fit:contain}
.splash-screen__sub {font-size:14px;color:var(--primary-dark);font-weight:700;letter-spacing:.2px}
.splash-screen__bar {display:block;height:4px;width:150px;background:#CBDFE6;border-radius:50px;overflow:hidden}
.splash-screen__bar i {display:block;width:34%;height:100%;border-radius:50px;background:var(--primary);animation:splash-progress 1.25s ease-in-out infinite}
.splash-screen--exit {animation:splash-away .3s ease forwards}
@keyframes splash-enter {from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes splash-progress {from{transform:translateX(-110%)}to{transform:translateX(390%)}}
@keyframes splash-away {to{opacity:0;visibility:hidden}}
/* Dedicated splash.html landing pages. */
.splash-standalone {min-height:100svh;display:grid;place-items:center;background:radial-gradient(ellipse at 50% 24%,#F1F8FA,#DCEBF2);padding:22px}
.splash-standalone__panel {display:flex;flex-direction:column;align-items:center;text-align:center;max-width:550px;padding:30px 15px;gap:15px}
.splash-standalone__panel img {width:150px;height:auto;object-fit:contain}
.splash-standalone__panel h1 {font-size:clamp(20px,3vw,29px);color:var(--primary-dark);margin:0}
.splash-standalone__panel p {font-size:14px;color:#486879;margin:0}
.splash-standalone__panel .btn {margin-top:9px}
@media(max-width:1050px) {.main-nav{gap:10px}.main-nav a {font-size:12px}}
@media(max-width:950px) {
 .header__inner {min-height:78px;gap:13px}
 .brand__logo {height:70px;width:80px}
 .lang-switch {margin-inline-start:auto}
 .menu-toggle {margin:0!important}
 .mobile-nav {direction:inherit}
}
@media(max-width:690px) {
 .header__inner {min-height:73px}
 .brand__logo {width:66px;height:65px}
 .lang-switch {font-size:11px;padding:5px 8px;gap:4px}
 .lang-switch img {height:22px;width:22px}
 .footer__social {gap:7px}
 .footer__social .social-icon {height:35px;width:35px}
 html[dir="rtl"] .float-actions {right:12px;left:auto}
 html[dir="ltr"] .float-actions {left:12px;right:auto}
 html[dir="rtl"] .back-top {left:13px;right:auto}
 html[dir="ltr"] .back-top {right:13px;left:auto}
 html[dir="ltr"] .hero__year {right:9px;left:auto}
 html[dir="ltr"] .quick-facts__grid>div:nth-child(2) {border-right:none}
 html[dir="ltr"] .quick-facts__grid>div:nth-child(4) {border-right:none}
 html[dir="ltr"] .catalog-count {text-align:left}
 .brand--footer .brand__logo {width:110px;height:100px}
}
@media(max-width:410px) {
 .brand__logo {width:59px;height:57px}
 .header__inner {gap:7px}
 .lang-switch span {font-size:10px}
 .lang-switch img {height:20px;width:20px}
 .lang-switch {padding:5px 7px}
}
@media(prefers-reduced-motion:reduce) {.splash-screen__content,.splash-screen__bar i {animation:none!important}}
@media print {.splash-screen,.footer__social {display:none!important}}
/* Numeric labels and decorative text also use the supplied font family. */
.hero__year strong,.about-teaser__panel>span:first-child,.about-story__graphic-inner>span,.about-story__graphic-inner>strong,.goal-item span,.principles-grid__number {font-family:'Alan Sans',Tahoma,Arial,sans-serif}

/* V3: wide localized wordmarks, mandatory 2-second splash for all navigation. */
html,body,button,input,textarea,select,option {font-family:'Alan Sans',Tahoma,Arial,sans-serif}
.brand {min-width:0;display:inline-flex;align-items:center}
.brand__logo {display:block;width:clamp(156px,18vw,218px);height:auto;max-width:100%;object-fit:contain;transform:none}
.brand--footer {padding:13px 16px}
.brand--footer .brand__logo {width:225px;height:auto}
.header__inner {min-height:88px}
/* Without JS, do not obstruct reading the site's content. */
.splash-screen {display:none}
.js-enabled .splash-screen:not([hidden]) {display:grid}
.splash-screen {background:radial-gradient(ellipse at 50% 30%,#FFFFFF 0%,#F4F9FB 55%,#E8F2F6 100%)}
.splash-screen__content {gap:28px;width:min(85vw,420px);animation:splash-enter .35s ease-out both}
.splash-screen__content img {width:150px;height:auto;max-width:100%;max-height:none;object-fit:contain}
.splash-screen__bar {display:block;width:min(62vw,210px);height:5px;border-radius:50px;background:#C9E2EB;overflow:hidden;direction:ltr}
.splash-screen__bar i {width:100%;height:100%;display:block;background:var(--primary);border-radius:50px;transform:scaleX(0);transform-origin:left center;animation:splash-fill 2s linear both}
.splash-screen--exit {animation:splash-away .25s ease forwards}
@keyframes splash-fill {from {transform:scaleX(0)}to {transform:scaleX(1)}}
body.splash-active {overflow:hidden}
.splash-standalone {height:100svh;min-height:100svh;display:grid;place-items:center;background:radial-gradient(ellipse at 50% 30%,#FFFFFF 0%,#F4F9FB 55%,#E8F2F6 100%);padding:24px;overflow:hidden}
.splash-standalone__panel {width:min(85vw,420px);max-width:none;padding:0;gap:28px;animation:splash-enter .35s ease-out both}
.splash-standalone__panel img {width:150px;height:auto;max-width:100%;max-height:none;object-fit:contain}
@media (max-width:950px) {
 .brand__logo {width:clamp(145px,23vw,196px);height:auto}
 .header__inner {min-height:80px}
}
@media (max-width:690px) {
 .brand__logo {width:clamp(130px,34vw,175px);height:auto}
 .header__inner {min-height:74px}
 .brand--footer .brand__logo {width:200px;height:auto}
}
@media (max-width:410px) {
 .brand__logo {width:128px;height:auto}
 .header__inner {gap:7px}
}
@media (prefers-reduced-motion:reduce) {
 .splash-screen__content,.splash-standalone__panel,.splash-screen--exit {animation:none}
 .splash-screen__bar i {animation:splash-fill 2s linear both!important}
}
@media print {.splash-screen {display:none!important}}
/* Prevent the quality preview cards from forcing narrow LTR pages wider than 320px. */
@media (max-width:690px) {
 .quality-teaser {grid-template-columns:minmax(0,1fr);min-width:0}
 .quality-teaser__images {gap:8px;min-width:0;max-width:100%}
 .mini-certificate {flex:1 1 0;width:auto;min-width:0}
}


/* v4.5 — hero uses the supplied 3D image with the industrial illustration as a background layer. */
.hero__visual {background-image:url('../assets/hero-industrial_.svg');background-repeat:no-repeat;background-position:center center;background-size:contain;padding:18px;border-radius:22px;aspect-ratio:820/610;display:grid;place-items:center;}
.hero__visual img {position:relative;z-index:1;display:block;margin-inline:auto;max-width: min(50%, 520px);height:auto;object-fit:contain;}
.hero__year {z-index:2;}
@media (max-width:690px) {.hero__visual {padding:10px;} .hero__year {bottom:8px;}}

/* v4.2 — original portrait product images; retain the full composition. */
.product-card__media {aspect-ratio:3/4;background:#FFFFFF;}
.product-card__media img {display:block;width:100%;height:100%;object-fit:cover;object-position:center;}
.product-card:hover .product-card__media img {transform:none;}

/* v4.3: desktop navigation separators and fixed mobile contact controls. */
#main-nav > a + a::before {
  content:""; position:absolute; inset-inline-start:calc(-1 * var(--nav-divider-offset, 12.5px));
  top:50%; transform:translateY(-50%); width:1px; height:16px; background:var(--border);
  pointer-events:none;
}
@media (max-width:1200px) {#main-nav {--nav-divider-offset:8px;}}
@media (max-width:1050px) {#main-nav {--nav-divider-offset:5px;}}
#mobile-nav > a:last-child {border-bottom:0;}
@media (max-width:690px) {
  html, body {min-width:0; width:100%; max-width:100%; overflow-x:clip;}
  html[dir="rtl"] .float-actions {position:fixed; right:max(12px,env(safe-area-inset-right)); left:auto; top:auto; bottom:max(14px,env(safe-area-inset-bottom)); transform:none; align-items:flex-end;}
  html[dir="ltr"] .float-actions {position:fixed; left:max(12px,env(safe-area-inset-left)); right:auto; top:auto; bottom:max(14px,env(safe-area-inset-bottom)); transform:none; align-items:flex-start;}
  .float-actions {width:max-content; max-width:calc(100% - 24px);}
  .float-actions a {width:44px;height:44px;padding:0;justify-content:center;}
  .btn--submit {min-width:0;max-width:100%;}
}
/* Extra compact viewports, including the 241px emulator shown in the review. */
@media (max-width:319px) {
  .container {width:calc(100% - 24px);}
  .header__inner {gap:5px; min-height:64px;}
  .header__inner .brand {flex:1 1 auto; min-width:0;}
  .header__inner .brand__logo {width:100%;max-width:128px;}
  .lang-switch {padding:4px 5px;gap:3px;}
  .lang-switch img {width:18px;height:18px;}
  .menu-toggle {width:34px;height:38px;flex:0 0 34px;}
  .hero__grid,.split-layout,.about-story,.contact-layout {grid-template-columns:minmax(0,1fr);}
  .products-grid,.products-grid--preview,.values-grid,.principles-grid {grid-template-columns:minmax(0,1fr);}
  .quick-facts__grid {grid-template-columns:repeat(2,minmax(0,1fr));}
  .quick-facts__grid > div {min-width:0;overflow-wrap:anywhere;}
  .contact-details,.contact-form-wrap {padding:14px;min-width:0;}
  .contact-form .field {min-width:0;}
  .contact-form input,.contact-form textarea,.contact-form select {max-width:100%;min-width:0;}
  .about-story__graphic-inner > strong {font-size:72px;}
  .about-story__graphic-inner {max-width:100%;}
  .brand--footer .brand__logo {width:100%;max-width:200px;}
  .footer__bottom,.footer__grid > * {min-width:0;overflow-wrap:anywhere;}
  .hero__copy,.split-copy,.cta-box,.quality-teaser > * {min-width:0;overflow-wrap:anywhere;}
  .cta-box {padding:24px 16px;}
  .cta-box .btn {white-space:normal;}
}

/* v4.4 / v4.6 — sticky header, floating mobile navigation and responsive service CTA. */
:root {--fixed-topbar-height:38px;--fixed-header-height:89px;--fixed-nav-height:calc(var(--fixed-topbar-height) + var(--fixed-header-height));}
html {scroll-padding-top:calc(var(--fixed-header-height) + 12px);}
.site-header { position: sticky; z-index: 80; top: 0; background: rgb(255 255 255 / 75%); box-shadow: 0 3px 20px rgba(17, 66, 84, .05); border-bottom: 1px solid #E6EDF1; backdrop-filter: blur(12px); }
.service-strip__inner {grid-template-areas:"copy services" "cta services";grid-template-rows:auto auto;row-gap:0;}
.service-strip__copy {grid-area:copy;align-self:end;min-width:0;}
.service-strip__services {grid-area:services;}
.service-strip__inner > .btn--outline-white {grid-area:cta;justify-self:start;align-self:start;}
@media (max-width:950px) {
 :root {--fixed-header-height:81px;}
 #mobile-nav {position:absolute;top:calc(100% + 10px);inset-inline-end:21px;inset-inline-start:auto;width:min(360px,calc(100% - 42px));max-height:calc(100dvh - var(--fixed-nav-height) - 24px);overflow-y:auto;overscroll-behavior:contain;z-index:1;padding:9px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 18px 46px rgba(0,42,62,.19);gap:3px;}
 #mobile-nav[hidden] {display:none!important;}
 #mobile-nav a {display:flex;align-items:center;gap:12px;padding:12px 11px;border-radius:8px;line-height:1.5;}
 #mobile-nav a:hover {background:var(--surface);color:var(--primary);}
 #mobile-nav a[aria-current="page"] {background:var(--surface-blue);color:var(--primary);}
 #mobile-nav .mobile-nav__icon {width:21px;height:21px;color:var(--primary);}
 #menu-toggle[aria-expanded="true"] {background:var(--surface-blue);border-color:#b9d7e2;}
}
@media (max-width:690px) {
 :root {--fixed-topbar-height:0px;--fixed-header-height:75px;}
 #mobile-nav {inset-inline-end:16px;width:min(360px,calc(100% - 32px));}
 .service-strip__inner {grid-template-areas:"copy" "services" "cta";grid-template-rows:auto auto auto;gap:25px;}
 .service-strip__copy {align-self:auto;}
 .service-strip__copy p {margin-bottom:0;}
 .catalog-count {display:none!important;}
}
@media (max-width:319px) {
 :root {--fixed-header-height:65px;}
 #mobile-nav {inset-inline-end:12px;width:calc(100% - 24px);}
 #mobile-nav a {padding:10px 7px;font-size:12px;gap:8px;}
}


/* v4.6 — location mark in the home page company caption. */
.about-teaser__caption {display:flex;align-items:center;gap:8px;}
.about-teaser__caption .icon {width:18px;height:18px;}