/*! aisite:v1:sp */
/*! Apple-style visual system for storage bags B2B site. PC canvas 1560px. */

/* ????????????????????????? 1. Base ????????????????????????? */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.47;
    letter-spacing: -0.022em;
    color: #1d1d1f;
    background: #ffffff;
}
img { max-width: 100%; height: auto; border: 0; }
video, iframe { max-width: 100%; }
a { color: #0066cc; text-decoration: none; }
a:hover { text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; line-height: 1.12; letter-spacing: -0.022em; }
p { margin: 0 0 14px; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }
[hidden] { display: none !important; }

.container { max-width: 1560px; margin: 0 auto; padding: 0 48px; }
.container--narrow { max-width: 1080px; }

.visually-hidden, .home-seo-h1 {
    position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ????????????????????????? 2. Buttons & links ????????????????????????? */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 44px; padding: 10px 26px;
    border: 1px solid transparent; border-radius: 980px;
    font-size: 15px; font-weight: 400; letter-spacing: -0.022em; line-height: 1.3;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease, opacity .2s ease;
    text-align: center;
}
.btn--primary { background: #0071e3; color: #ffffff; }
.btn--primary:hover { background: #0077ed; }
.btn--dark { background: #1d1d1f; color: #ffffff; }
.btn--dark:hover { background: #000000; }
.btn--outline { background: transparent; color: #0066cc; border-color: #0066cc; }
.btn--outline:hover { background: #0066cc; color: #ffffff; }
.btn--on-dark { color: #ffffff; border-color: rgba(255,255,255,.7); }
.btn--on-dark:hover { background: #ffffff; color: #1d1d1f; }
.btn--sm { min-height: 36px; padding: 6px 18px; font-size: 14px; }
.btn--full { width: 100%; }

.text-link { color: #0066cc; font-size: 15px; }
.text-link:hover { text-decoration: underline; }
.text-link--on-dark { color: #2997ff; }

/* ????????????????????????? 3. Header ????????????????????????? */
.site-header {
    position: sticky; top: 0; z-index: 900;
    background: rgba(0, 0, 0, 0.8);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header__inner { display: flex; align-items: center; gap: 28px; min-height: 60px; }
.site-header__logo { display: inline-flex; align-items: center; flex: 0 0 auto; }
.site-header__logo img { max-height: 40px; width: auto; display: block; }
.site-header__logo-text { color: #ffffff; font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.site-header__tools { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.site-header__cta { min-height: 36px; padding: 6px 18px; font-size: 14px; }

.site-header .product-search-toggle,
.site-header .lang-switch-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border: 0; border-radius: 50%;
    background: transparent; color: rgba(255,255,255,.88);
}
.site-header .product-search-toggle:hover,
.site-header .lang-switch-toggle:hover { color: #ffffff; background: rgba(255,255,255,.12); }

.product-search-box {
    position: absolute; top: 100%; right: 48px;
    width: min(420px, calc(100vw - 32px));
    background: #ffffff; border-radius: 12px;
    box-shadow: 3px 5px 30px rgba(0,0,0,.22);
    padding: 12px;
    display: none;
}
.product-search-box.is-open { display: block; }
.product-search-form { display: flex; gap: 8px; }
.product-search-input {
    flex: 1; min-width: 0; height: 40px; padding: 0 14px;
    border: 1px solid rgba(0,0,0,.12); border-radius: 11px; background: #fafafc;
    color: #1d1d1f; font-size: 14px;
}
.product-search-input:focus { outline: 2px solid #0071e3; outline-offset: 0; border-color: transparent; }
.product-search-submit {
    height: 40px; padding: 0 18px; border: 0; border-radius: 980px;
    background: #0071e3; color: #ffffff; font-size: 14px;
}
.search-toolbar { display: flex; gap: 12px; margin-bottom: 28px; }
.search-toolbar__input { height: 44px; }

.lang-switch { position: relative; }
.lang-switch-list {
    position: absolute; top: calc(100% + 10px); right: 0; z-index: 950;
    min-width: 190px; max-height: 60vh; overflow: auto;
    background: #ffffff; border-radius: 12px;
    box-shadow: 3px 5px 30px rgba(0,0,0,.22);
    padding: 8px 0; display: none;
}
.lang-switch-list.is-open { display: block; }
.lang-switch-item a {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 18px; color: #1d1d1f; font-size: 14px;
}
.lang-switch-item a:hover { background: #f5f5f7; }
.lang-switch-name { flex: 1; }
.language-pic { display: inline-block; width: 20px; height: 14px; background: #e8e8ed; border-radius: 2px; }

/* ????????????????????????? 4. Navigation ????????????????????????? */
.main-nav { flex: 1 1 auto; min-width: 0; }
.main-nav__list { display: flex; align-items: center; gap: 4px; }
.main-nav__item { position: relative; }
.main-nav__link {
    display: inline-flex; align-items: center; min-height: 60px; padding: 0 14px;
    color: rgba(255,255,255,.88); font-size: 13px; letter-spacing: -0.01em;
    transition: color .2s ease;
}
.main-nav__link:hover { color: #ffffff; }
.main-nav__dropdown {
    position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
    min-width: 230px; padding: 10px 0;
    background: rgba(20,20,22,.96);
    -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
    border-radius: 0 0 12px 12px;
    box-shadow: 3px 5px 30px rgba(0,0,0,.35);
    display: none; z-index: 940;
}
.main-nav__item--has-children:hover .main-nav__dropdown,
.main-nav__item--has-children:focus-within .main-nav__dropdown,
.main-nav__item--has-children.is-open .main-nav__dropdown { display: block; }
.main-nav__dropdown-item { position: relative; }
.main-nav__dropdown-item > a {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 9px 20px; color: rgba(255,255,255,.85); font-size: 13px;
}
.main-nav__dropdown-item > a:hover { color: #ffffff; background: rgba(255,255,255,.08); }
.main-nav__dropdown-item.has-sub > a::after { content: "\203A"; opacity: .6; }
.main-nav__submenu {
    position: absolute; top: -10px; left: 100%;
    min-width: 210px; padding: 10px 0;
    background: rgba(20,20,22,.96); border-radius: 8px;
    box-shadow: 3px 5px 30px rgba(0,0,0,.35);
    display: none;
}
.main-nav__dropdown-item:hover .main-nav__submenu,
.main-nav__dropdown-item.is-open .main-nav__submenu { display: block; }
.main-nav__submenu-item a { display: block; padding: 8px 20px; color: rgba(255,255,255,.8); font-size: 13px; }
.main-nav__submenu-item a:hover { color: #ffffff; background: rgba(255,255,255,.08); }

.mobile-menu-toggle {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 40px; height: 40px; padding: 8px;
    background: transparent; border: 0; border-radius: 8px;
}
.mobile-menu-toggle span { display: block; height: 2px; width: 100%; background: #ffffff; border-radius: 2px; transition: transform .25s ease, opacity .25s ease; }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ????????????????????????? 5. Sections ????????????????????????? */
.section { padding: 88px 0; }
.section--alt { background: #f5f5f7; }
.section--dark { background: #000000; color: #ffffff; }
.section--dark .section-title { color: #ffffff; }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.section-title {
    font-size: 40px; font-weight: 600; line-height: 1.1; letter-spacing: -0.025em;
    margin: 0 0 36px;
}
.section-head .section-title { margin-bottom: 0; }
.section-title--sm { font-size: 28px; margin-bottom: 26px; }
.section--dark .text-link { color: #2997ff; }

/* ????????????????????????? 6. Hero ????????????????????????? */
.hero { position: relative; background: #000000; color: #ffffff; overflow: hidden; }
.hero__slider { position: relative; height: min(78vh, 760px); min-height: 480px; }
.hero__slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .7s ease, visibility .7s ease; }
.hero__slide.active { opacity: 1; visibility: visible; z-index: 2; }
.hero__bg {
    position: absolute; inset: 0;
    background-position: center; background-size: cover; background-repeat: no-repeat;
}
.hero__bg::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,.42) 0%, rgba(0,0,0,.18) 45%, rgba(0,0,0,.55) 100%);
}
.hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__content {
    position: relative; z-index: 3; height: 100%;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding-top: 60px;
}
.hero__title { font-size: 56px; font-weight: 600; line-height: 1.07; letter-spacing: -0.028em; margin: 0 0 18px; max-width: 1000px; }
.hero__subtitle { font-size: 21px; font-weight: 400; line-height: 1.38; color: rgba(255,255,255,.86); margin: 0 0 28px; max-width: 760px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

.hero__slider-nav {
    position: absolute; top: 50%; z-index: 5; transform: translateY(-50%);
    width: 44px; height: 44px; border: 0; border-radius: 50%;
    background: rgba(210,210,215,.4); color: #ffffff;
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    transition: background-color .2s ease, transform .2s ease;
}
.hero__slider-nav:hover { background: rgba(210,210,215,.64); }
.hero__slider-nav:active { transform: translateY(-50%) scale(.92); }
.hero__slider-nav--prev { left: 28px; }
.hero__slider-nav--next { right: 28px; }
.hero__slider-nav--prev::before { content: ""; display: block; width: 11px; height: 11px; margin-left: 4px; border-left: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); }
.hero__slider-nav--next::before { content: ""; display: block; width: 11px; height: 11px; margin-right: 4px; border-right: 2px solid currentColor; border-top: 2px solid currentColor; transform: rotate(45deg); }

.hero__slider-dots { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 9px; }
.hero__dot { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.4); transition: background-color .2s ease, transform .2s ease; }
.hero__dot.active { background: #ffffff; transform: scale(1.15); }

/* ????????????????????????? 7. Home: brand & custom blocks ????????????????????????? */
.home-brand { text-align: center; }
.home-brand__title { font-size: 40px; margin-bottom: 24px; }
.home-brand__desc { max-width: 860px; margin: 0 auto; color: rgba(0,0,0,.8); font-size: 17px; line-height: 1.6; }

.home-block__grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.home-block__grid--single { grid-template-columns: minmax(0, 760px); justify-content: center; }
.home-block__item {
    background: #ffffff; border-radius: 12px; overflow: hidden;
    display: flex; flex-direction: column;
}
.section--alt .home-block__item { background: #ffffff; }
.section:not(.section--alt) .home-block__item { background: #f5f5f7; }
.home-block__media { aspect-ratio: 4 / 3; background: #ffffff; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.home-block__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.home-block__media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.home-block__body { padding: 22px 24px 26px; }
.home-block__item-title { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.home-block__item-desc { font-size: 14px; color: rgba(0,0,0,.72); line-height: 1.5; margin-bottom: 12px; }
.home-block__item-desc:last-child { margin-bottom: 0; }

/* ????????????????????????? 8. Home: categories ????????????????????????? */
.category-line-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.category-line-card {
    display: flex; flex-direction: column; align-items: center; gap: 14px;
    background: #ffffff; border-radius: 12px; padding: 26px 16px;
    color: #1d1d1f; text-align: center;
    transition: transform .25s ease, box-shadow .25s ease;
}
.category-line-card:hover { transform: translateY(-4px); box-shadow: 3px 5px 30px rgba(0,0,0,.12); }
.category-line-card__media { width: 96px; height: 96px; border-radius: 50%; overflow: hidden; background: #f5f5f7; display: flex; align-items: center; justify-content: center; }
.category-line-card__media img { width: 100%; height: 100%; object-fit: cover; }
.category-line-card__name { font-size: 15px; font-weight: 600; line-height: 1.3; }

/* ????????????????????????? 9. Product grid & cards ????????????????????????? */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.section--dark .product-card { background: #1d1d1f; }
.product-card {
    background: #ffffff; border-radius: 12px; overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease;
}
.section--alt .product-card { background: #ffffff; }
.section:not(.section--alt):not(.section--dark) .product-card { background: #f5f5f7; }
.product-card:hover { transform: translateY(-4px); box-shadow: 3px 5px 30px rgba(0,0,0,.14); }
.product-card__media { position: relative; display: block; aspect-ratio: 1 / 1; background: #ffffff; overflow: hidden; }
.product-card__img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-card__placeholder { display: block; width: 100%; height: 100%; background: #e8e8ed; }
.product-card__video-badge {
    position: absolute; right: 10px; bottom: 10px;
    width: 28px; height: 28px; border-radius: 50%;
    background: rgba(0,0,0,.55); color: #ffffff;
    display: flex; align-items: center; justify-content: center; font-size: 11px;
}
.product-card__body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.product-card__title { font-size: 15px; font-weight: 600; line-height: 1.35; margin-bottom: 8px; }
.product-card__title a { color: inherit; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.section--dark .product-card__title, .section--dark .product-card__title a { color: #ffffff; }
.product-card__meta { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: rgba(0,0,0,.56); margin-bottom: 14px; }
.section--dark .product-card__meta { color: rgba(255,255,255,.6); }
.product-card__actions { margin-top: auto; display: flex; align-items: center; gap: 14px; }
.product-card__more { font-size: 14px; color: #0066cc; }
.section--dark .product-card__more { color: #2997ff; }
.product-card__inquiry.btn--outline { border-color: rgba(0,102,204,.55); }

/* ????????????????????????? 10. Home: about / media / certs / news ????????????????????????? */
.home-about__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 64px; align-items: center; }
.home-about__text { color: rgba(0,0,0,.8); font-size: 17px; line-height: 1.6; margin-bottom: 18px; }
.home-about__keywords { font-size: 14px; color: rgba(0,0,0,.56); margin-bottom: 26px; }
.home-about__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.home-about__media img { width: 100%; border-radius: 12px; display: block; }

.media-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.media-grid__item { margin: 0; background: #ffffff; border-radius: 12px; overflow: hidden; }
.section:not(.section--alt) .media-grid__item { background: #f5f5f7; }
.media-grid__item img, .media-grid__item video { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.media-grid__item figcaption, .media-grid__desc { padding: 14px 16px; font-size: 13px; color: rgba(0,0,0,.72); margin: 0; }

.cert-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.cert-grid--page, .cert-grid--full { grid-template-columns: repeat(4, 1fr); }
.cert-grid__item { margin: 0; background: #ffffff; border-radius: 12px; overflow: hidden; text-align: center; }
.section:not(.section--alt) .cert-grid__item { background: #f5f5f7; }
.cert-grid__item img, .cert-grid__item video { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block; }
.cert-grid__item figcaption { padding: 12px 12px 14px; font-size: 13px; color: rgba(0,0,0,.72); }
.cert-grid__no { padding: 0 12px 12px; font-size: 12px; color: rgba(0,0,0,.48); margin: 0; }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card--tile { background: #f5f5f7; border-radius: 12px; padding: 26px 26px 30px; }
.news-card__date { display: block; font-size: 13px; color: rgba(0,0,0,.48); margin-bottom: 10px; }
.news-card__title { font-size: 17px; font-weight: 600; line-height: 1.4; margin: 0; }
.news-card__title a { color: #1d1d1f; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__title a:hover { color: #0066cc; }

/* ????????????????????????? 11. Inquiry band ????????????????????????? */
.inquiry-band { background: #000000; color: #ffffff; padding: 76px 0; }
.inquiry-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.inquiry-band__title { font-size: 36px; font-weight: 600; letter-spacing: -0.025em; margin-bottom: 10px; }
.inquiry-band__text { color: rgba(255,255,255,.72); font-size: 16px; margin: 0; }
.inquiry-band__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ????????????????????????? 12. Page hero (inner pages) ????????????????????????? */
.page-hero { background: #f5f5f7; padding: 52px 0 44px; margin-bottom: 48px; }
.page-hero__title { font-size: 40px; font-weight: 600; letter-spacing: -0.025em; margin: 18px 0 0; }
.page-hero__desc { margin-top: 14px; color: rgba(0,0,0,.72); max-width: 900px; }

/* ????????????????????????? 13. Breadcrumb ????????????????????????? */
.breadcrumb { margin-bottom: 8px; }
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; font-size: 13px; }
.breadcrumb__item { display: inline-flex; align-items: center; gap: 6px; color: rgba(0,0,0,.48); }
.breadcrumb__item + .breadcrumb__item::before { content: "\203A"; color: rgba(0,0,0,.32); }
.breadcrumb__link { color: rgba(0,0,0,.6); }
.breadcrumb__link:hover { color: #0066cc; text-decoration: underline; }
.breadcrumb__current { color: rgba(0,0,0,.85); }
.page-hero .breadcrumb__link { color: rgba(0,0,0,.55); }

/* ????????????????????????? 14. List layout & sidebar ????????????????????????? */
.list-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 44px; padding-bottom: 72px; }
.category-sidebar { position: sticky; top: 84px; align-self: start; background: #f5f5f7; border-radius: 12px; padding: 24px 22px; }
.category-sidebar__title { font-size: 17px; font-weight: 600; margin-bottom: 16px; }
.category-sidebar__list { display: flex; flex-direction: column; gap: 2px; }
.category-sidebar__item > a { display: block; padding: 8px 10px; border-radius: 8px; color: #1d1d1f; font-size: 14px; font-weight: 500; }
.category-sidebar__item > a:hover { background: rgba(0,0,0,.05); }
.category-sidebar__item.is-active > a { background: #1d1d1f; color: #ffffff; }
.category-sidebar__sublist { padding: 4px 0 8px 14px; display: flex; flex-direction: column; gap: 1px; }
.category-sidebar__subitem a { display: block; padding: 6px 10px; border-radius: 8px; color: rgba(0,0,0,.72); font-size: 13px; }
.category-sidebar__subitem a:hover { background: rgba(0,0,0,.05); color: #1d1d1f; }
.category-sidebar__subitem.is-active a { color: #0066cc; font-weight: 600; }

.subcategory-blocks { display: flex; flex-direction: column; gap: 44px; }
.subcategory-block__head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 20px; border-bottom: 1px solid rgba(0,0,0,.08); padding-bottom: 12px; }
.subcategory-block__title { font-size: 22px; font-weight: 600; margin: 0; }
.subcategory-block__title a { color: #1d1d1f; }
.subcategory-block__title a:hover { color: #0066cc; }
.subcategory-block .product-grid { grid-template-columns: repeat(4, 1fr); }

.category-desc { margin-top: 44px; padding-top: 28px; border-top: 1px solid rgba(0,0,0,.08); color: rgba(0,0,0,.72); font-size: 14px; line-height: 1.7; }

/* ????????????????????????? 15. Pagination ????????????????????????? */
.pagination { margin-top: 48px; }
.pagination__list {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: 8px; list-style: none; margin: 0; padding: 0;
}
.pagination__item { display: inline-flex; }
.pagination__link {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 40px; height: 40px; padding: 0 14px;
    border-radius: 980px; background: #f5f5f7; color: #1d1d1f;
    font-size: 14px; transition: background-color .2s ease, color .2s ease;
}
.pagination__link:hover { background: #e8e8ed; }
.pagination__link.is-current { background: #1d1d1f; color: #ffffff; cursor: default; }
.pagination__link--prev, .pagination__link--next { font-size: 13px; }

/* ????????????????????????? 16. Empty state ????????????????????????? */
.empty-state { padding: 72px 24px; text-align: center; background: #f5f5f7; border-radius: 12px; }
.empty-state__text { font-size: 17px; color: rgba(0,0,0,.56); margin-bottom: 18px; }
.empty-state__tips { display: inline-flex; flex-direction: column; gap: 6px; text-align: left; color: rgba(0,0,0,.56); font-size: 14px; list-style: disc; padding-left: 20px; }

/* ????????????????????????? 17. Product detail ????????????????????????? */
.product-detail { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; padding: 36px 0 56px; }
.product-detail__main-view { position: relative; background: #f5f5f7; border-radius: 12px; overflow: hidden; aspect-ratio: 1 / 1; display: flex; align-items: center; justify-content: center; }
.product-detail__main-img { width: 100%; height: 100%; object-fit: contain; display: block; }
.product-detail__main-video { width: 100%; height: 100%; object-fit: contain; display: block; background: #000; }
.product-detail__thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.gallery-thumb {
    position: relative; width: 80px; height: 80px; padding: 0;
    border: 2px solid transparent; border-radius: 8px; overflow: hidden;
    background: #f5f5f7;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-thumb--active { border-color: #0071e3; }
.gallery-thumb__placeholder { display: block; width: 100%; height: 100%; background: #e8e8ed; }
.gallery-thumb__play {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    color: #ffffff; font-size: 16px; background: rgba(0,0,0,.35);
}

.product-detail__title { font-size: 30px; font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 22px; }
.product-detail__facts { display: flex; flex-direction: column; gap: 10px; margin: 0 0 26px; }
.product-detail__fact { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 12px; font-size: 14px; margin: 0; }
.product-detail__fact dt { color: rgba(0,0,0,.56); margin: 0; }
.product-detail__fact dd { margin: 0; color: #1d1d1f; word-break: break-word; }
.product-detail__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.product-detail__price { font-size: 24px; font-weight: 600; color: #1d1d1f; margin-bottom: 20px; }
.product-detail__stock { font-size: 14px; color: rgba(0,0,0,.6); margin: 12px 0 0; }
.product-detail__description { padding: 48px 0; }

.product-params { padding: 8px 0 32px; }
.product-params__group { margin-bottom: 36px; }
.product-params__title { font-size: 22px; margin-bottom: 18px; }
.product-params__subtitle { font-size: 16px; margin: 18px 0 12px; }
.product-params__table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; margin: 0; }
.product-params__row { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 14px; padding: 11px 0; border-bottom: 1px solid rgba(0,0,0,.07); font-size: 14px; margin: 0; }
.product-params__row dt { color: rgba(0,0,0,.56); margin: 0; }
.product-params__row dd { margin: 0; word-break: break-word; }
.product-params__media-list { display: flex; flex-wrap: wrap; gap: 12px; }
.product-params__media-item { width: 120px; height: 120px; border-radius: 8px; overflow: hidden; background: #f5f5f7; display: block; }
.product-params__media-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-params__table-wrap { overflow-x: auto; }
.product-params__lead-table { border-collapse: collapse; font-size: 14px; min-width: 420px; }
.product-params__lead-table th, .product-params__lead-table td { border: 1px solid rgba(0,0,0,.1); padding: 10px 16px; text-align: left; }
.product-params__lead-table th { background: #f5f5f7; font-weight: 600; }

.related-products { padding: 56px 0 72px; }

/* ????????????????????????? 18. 2C extras ????????????????????????? */
.price-tiers { margin-bottom: 22px; }
.price-tiers__table { border-collapse: collapse; width: 100%; max-width: 460px; font-size: 14px; }
.price-tiers__table th, .price-tiers__table td { border: 1px solid rgba(0,0,0,.1); padding: 10px 16px; text-align: left; }
.price-tiers__table th { background: #f5f5f7; font-weight: 600; }
.price-tiers__amount { color: #b42318; font-weight: 600; }

.spec-groups { display: flex; flex-direction: column; gap: 16px; margin-bottom: 22px; }
.spec-group__name { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.spec-group__values { display: flex; flex-wrap: wrap; gap: 8px; }
.spec-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 14px; border: 1px solid rgba(0,0,0,.16); border-radius: 8px;
    background: #ffffff; font-size: 13px; color: #1d1d1f;
}
.spec-btn img { width: 26px; height: 26px; object-fit: cover; border-radius: 4px; }
.spec-btn__swatch { width: 16px; height: 16px; border-radius: 50%; display: inline-block; }
.spec-btn.is-selected { border-color: #0071e3; box-shadow: 0 0 0 1px #0071e3; }

.qty-box { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.qty-box__label { font-size: 14px; color: rgba(0,0,0,.72); }
.qty-box__control { display: inline-flex; align-items: stretch; border: 1px solid rgba(0,0,0,.16); border-radius: 11px; overflow: hidden; }
.qty-box__btn { width: 40px; border: 0; background: #fafafc; font-size: 16px; color: #1d1d1f; }
.qty-box__btn:hover { background: #ededf2; }
.qty-box__input { width: 76px; border: 0; text-align: center; font-size: 15px; -moz-appearance: textfield; }
.qty-box__input::-webkit-outer-spin-button, .qty-box__input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.qty-box__unit { font-size: 13px; color: rgba(0,0,0,.56); }

.ship-estimate { background: #f5f5f7; border-radius: 12px; padding: 28px 30px; margin: 12px 0 40px; }
.ship-estimate__controls { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.ship-estimate__country { min-width: 240px; height: 44px; padding: 0 14px; border: 1px solid rgba(0,0,0,.14); border-radius: 11px; background: #ffffff; }
.ship-estimate__result { margin-top: 16px; font-size: 14px; color: rgba(0,0,0,.72); }
.ship-estimate__result table { border-collapse: collapse; width: 100%; }
.ship-estimate__result th, .ship-estimate__result td { border: 1px solid rgba(0,0,0,.1); padding: 9px 14px; text-align: left; }
.ship-estimate__result th { background: #ffffff; }

/* ????????????????????????? 19. About / contact / info tables ????????????????????????? */
.about-intro__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: start; }
.about-intro__text { color: rgba(0,0,0,.8); font-size: 16px; line-height: 1.7; }
.about-intro__media { margin: 0; }
.about-intro__media img { width: 100%; border-radius: 12px; display: block; }
.about-video { padding-top: 0; }

.info-table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; margin: 0; }
.info-table__row { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 16px; padding: 13px 0; border-bottom: 1px solid rgba(0,0,0,.07); font-size: 14px; margin: 0; }
.info-table__row dt { color: rgba(0,0,0,.56); margin: 0; }
.info-table__row dd { margin: 0; word-break: break-word; }

.history-list { display: flex; flex-direction: column; gap: 0; }
.history-list__item { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid rgba(0,0,0,.08); }
.history-list__date { font-size: 17px; font-weight: 600; color: #0066cc; }
.history-list__body img { max-width: 320px; border-radius: 8px; margin-top: 10px; display: block; }

.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; padding-bottom: 76px; }
.contact-info__list { display: flex; flex-direction: column; margin: 0; }
.contact-info__row { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 14px; padding: 12px 0; border-bottom: 1px solid rgba(0,0,0,.07); font-size: 14px; margin: 0; }
.contact-info__row dt { color: rgba(0,0,0,.56); margin: 0; }
.contact-info__row dd { margin: 0; word-break: break-word; }

.language-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.language-list__item a {
    display: flex; align-items: center; gap: 12px;
    background: #f5f5f7; border-radius: 12px; padding: 18px 20px;
    color: #1d1d1f; font-size: 15px; font-weight: 500;
    transition: background-color .2s ease;
}
.language-list__item a:hover { background: #e8e8ed; }
.language-list__item .language-pic { width: 26px; height: 18px; border-radius: 3px; }

/* ????????????????????????? 20. News / blog ????????????????????????? */
.news-cats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.news-cats__item {
    display: inline-flex; align-items: center; min-height: 38px; padding: 6px 18px;
    border-radius: 980px; background: #f5f5f7; color: #1d1d1f; font-size: 14px;
    transition: background-color .2s ease, color .2s ease;
}
.news-cats__item:hover { background: #e8e8ed; }
.news-cats__item.is-active { background: #1d1d1f; color: #ffffff; }

.news-list { display: flex; flex-direction: column; gap: 22px; }
.news-card { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 28px; background: #f5f5f7; border-radius: 12px; overflow: hidden; }
.news-card--no-img { grid-template-columns: minmax(0, 1fr); }
.news-card__media { display: block; height: 100%; }
.news-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-card__body { padding: 24px 28px 24px 0; display: flex; flex-direction: column; align-items: flex-start; }
.news-card--no-img .news-card__body { padding: 24px 28px; }
.news-card__more { margin-top: auto; padding-top: 12px; }

.article-detail { padding: 36px 0 56px; }
.article-detail__header { text-align: center; margin-bottom: 30px; }
.article-detail__title { font-size: 36px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.18; margin-bottom: 14px; }
.article-detail__date { font-size: 14px; color: rgba(0,0,0,.48); }
.article-detail__cover { margin: 0 0 30px; text-align: center; }
.article-detail__cover img { max-width: 100%; border-radius: 12px; display: inline-block; }
.article-detail__prevnext { display: flex; justify-content: space-between; gap: 24px; margin-top: 44px; padding-top: 24px; border-top: 1px solid rgba(0,0,0,.08); font-size: 14px; }
.article-detail__prev, .article-detail__next { max-width: 46%; color: #1d1d1f; }
.article-detail__next { text-align: right; margin-left: auto; }
.article-detail__prev:hover, .article-detail__next:hover { color: #0066cc; }
.article-detail__pn-label { display: block; font-size: 12px; color: rgba(0,0,0,.48); margin-bottom: 4px; }

.related-news__list { display: flex; flex-direction: column; gap: 10px; }
.related-news__item { display: flex; gap: 16px; align-items: baseline; font-size: 14px; }
.related-news__item time { color: rgba(0,0,0,.48); flex: 0 0 auto; }
.related-news__item a { color: #1d1d1f; }
.related-news__item a:hover { color: #0066cc; }

/* ????????????????????????? 21. Video ????????????????????????? */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.video-card { background: #f5f5f7; border-radius: 12px; overflow: hidden; }
.video-card__media { position: relative; display: block; aspect-ratio: 16 / 9; background: #e8e8ed; overflow: hidden; }
.video-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-card__placeholder { display: block; width: 100%; height: 100%; background: #e8e8ed; }
.video-card__play {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 46px; height: 46px; border-radius: 50%;
    background: rgba(0,0,0,.55); 
}
.video-card__play::before {
    content: ""; position: absolute; top: 50%; left: 54%; transform: translate(-50%, -50%);
    border-left: 14px solid #ffffff; border-top: 8px solid transparent; border-bottom: 8px solid transparent;
}
.video-card__title { font-size: 14px; font-weight: 600; line-height: 1.4; padding: 14px 16px 16px; margin: 0; }
.video-card__title a { color: #1d1d1f; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-card__title a:hover { color: #0066cc; }

.video-detail { padding: 36px 0 24px; }
.video-detail__title { font-size: 30px; font-weight: 600; margin-bottom: 22px; }
.video-detail__desc { margin-top: 22px; color: rgba(0,0,0,.76); }
.video-detail__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.video-player { position: relative; width: 100%; padding-top: 56.25%; background: #000; border-radius: 12px; overflow: hidden; }
.video-player video, .video-player iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ????????????????????????? 22. Download / projects ????????????????????????? */
.download-list { display: flex; flex-direction: column; gap: 16px; }
.download-card {
    display: grid; grid-template-columns: 96px minmax(0, 1fr) auto;
    gap: 22px; align-items: center;
    background: #f5f5f7; border-radius: 12px; padding: 18px 24px;
}
.download-card__thumb { width: 96px; height: 72px; border-radius: 8px; overflow: hidden; background: #ffffff; display: flex; align-items: center; justify-content: center; }
.download-card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.download-card__icon { font-size: 13px; font-weight: 700; color: rgba(0,0,0,.4); }
.download-card__title { font-size: 16px; font-weight: 600; margin: 0; word-break: break-word; }

.filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filter-tabs__item {
    display: inline-flex; align-items: center; min-height: 38px; padding: 6px 18px;
    border-radius: 980px; background: #f5f5f7; color: #1d1d1f; font-size: 14px;
}
.filter-tabs__item:hover { background: #e8e8ed; }
.filter-tabs__item.is-active { background: #1d1d1f; color: #ffffff; }

.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card { background: #f5f5f7; border-radius: 12px; overflow: hidden; }
.project-card__media { display: block; aspect-ratio: 3 / 2; overflow: hidden; }
.project-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.project-card:hover .project-card__media img { transform: scale(1.03); }
.project-card__body { padding: 20px 22px 24px; }
.project-card__title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.project-card__title a { color: #1d1d1f; }
.project-card__title a:hover { color: #0066cc; }
.project-card__date { font-size: 13px; color: rgba(0,0,0,.48); }

/* ????????????????????????? 23. Factory groups ????????????????????????? */
.factory-group { margin-bottom: 56px; }
.factory-group .section-head { margin-bottom: 24px; }
.factory-group__title a, .section-title a { color: inherit; }
.factory-group .section-title a:hover { color: #0066cc; }

/* ????????????????????????? 24. Prose (rich text) ????????????????????????? */
.prose { font-size: 15px; line-height: 1.7; color: rgba(0,0,0,.8); word-break: break-word; }
.prose h2, .prose h3, .prose h4 { margin: 26px 0 14px; }
.prose p { margin: 0 0 14px; }
.prose img { max-width: 100%; height: auto; border-radius: 8px; }
.prose video, .prose iframe { max-width: 100%; display: block; margin: 14px 0; }
.prose table { max-width: 100%; border-collapse: collapse; margin: 14px 0; display: block; overflow-x: auto; }
.prose table td, .prose table th { border: 1px solid rgba(0,0,0,.12); padding: 8px 12px; }
.prose a { color: #0066cc; text-decoration: underline; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 14px; list-style: disc; }
.prose ol { list-style: decimal; }
.prose pre { overflow-x: auto; background: #f5f5f7; padding: 14px; border-radius: 8px; }

/* ????????????????????????? 25. Footer ????????????????????????? */
.site-footer { background: #000000; color: rgba(255,255,255,.82); margin-top: 0; padding: 76px 0 0; }
.site-footer__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 48px; padding-bottom: 56px; }
.site-footer__logo { max-height: 44px; width: auto; display: block; margin-bottom: 18px; filter: brightness(0) invert(1); }
.site-footer__logo-text { display: inline-block; font-size: 19px; font-weight: 600; color: #ffffff; margin-bottom: 18px; }
.site-footer__tagline { font-size: 14px; color: rgba(255,255,255,.66); margin-bottom: 20px; }
.site-footer__heading { font-size: 14px; font-weight: 600; color: #ffffff; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 18px; }
.site-footer__links { display: flex; flex-direction: column; gap: 10px; }
.site-footer__links a { color: rgba(255,255,255,.72); font-size: 14px; }
.site-footer__links a:hover { color: #ffffff; }
.site-footer__hint { font-size: 13px; color: rgba(255,255,255,.56); margin-bottom: 14px; }
.site-footer__contact-list { display: flex; flex-direction: column; gap: 8px; }
.site-footer__line { font-size: 14px; margin: 0; color: rgba(255,255,255,.72); }
.site-footer__line a { color: rgba(255,255,255,.72); }
.site-footer__line a:hover { color: #ffffff; }
.site-footer__label { display: inline-block; min-width: 74px; color: rgba(255,255,255,.48); font-size: 13px; }
.site-footer__social { margin-top: 20px; }
.site-footer__social-links { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 8px; }
.site-footer__social-links a { color: rgba(255,255,255,.72); font-size: 13px; }
.site-footer__social-links a:hover { color: #ffffff; }
.site-footer__bottom {
    border-top: 1px solid rgba(255,255,255,.12);
    padding: 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
    font-size: 13px; color: rgba(255,255,255,.56);
}
.site-footer__bottom p { margin: 0; }
.site-footer__legal a { color: rgba(255,255,255,.56); }
.site-footer__legal a:hover { color: #ffffff; }

/* ????????????????????????? 26. Inquiry forms (shared) ????????????????????????? */
.inquiry-form, .contact-form { display: flex; flex-direction: column; gap: 16px; }
.inquiry-form .form-group { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.inquiry-form .form-row { display: flex; flex-direction: column; gap: 6px; }
.inquiry-form label { font-size: 13px; font-weight: 500; color: rgba(0,0,0,.72); }
.inquiry-form label span { color: #b42318; }
.inquiry-form input, .inquiry-form textarea, .contact-form input, .contact-form textarea {
    width: 100%; padding: 11px 14px;
    border: 1px solid rgba(0,0,0,.14); border-radius: 11px; background: #fafafc;
    color: #1d1d1f; font-size: 14px;
}
.inquiry-form input:focus, .inquiry-form textarea:focus { outline: 2px solid #0071e3; border-color: transparent; }
.inquiry-form input.is-invalid, .inquiry-form textarea.is-invalid { border-color: #b42318; background: #fffafa; }
.form-field-error { color: #b42318; font-size: 12px; margin: 2px 0 0; }

.inquiry-modal { z-index: 2000 !important; background: rgba(0,0,0,.55); padding: 20px; }
.inquiry-modal.is-open { display: flex !important; }
.inquiry-modal__dialog {
    position: relative; width: min(600px, calc(100vw - 40px)); max-height: min(86vh, 780px);
    overflow-y: auto; background: #ffffff; color: #1d1d1f;
    border-radius: 12px; box-shadow: 3px 5px 30px rgba(0,0,0,.35); padding: 34px 34px 30px;
}
.inquiry-modal__title { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; margin: 0 36px 22px 0; }
.inquiry-modal__close {
    position: absolute; top: 14px; right: 14px; width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border: 0; background: #f5f5f7; color: rgba(0,0,0,.6); border-radius: 50%; font-size: 20px; line-height: 1;
}
.inquiry-modal__close:hover { background: #ededf2; color: #1d1d1f; }

.page-inquiry .inquiry-layout, .page-inquiry-success .inquiry-layout { padding: 56px 0 76px; }
.page-inquiry .inquiry-form-wrap, .page-inquiry .inquiry-contact { background: #f5f5f7; border-radius: 12px; padding: 30px; }
.page-inquiry-success .success-box { background: #f5f5f7; border-radius: 12px; padding: 48px 30px; text-align: center; }

/* ????????????????????????? 27. Shared slide sidebar fit ????????????????????????? */
.ai-slide { z-index: 1500; }

/* ????????????????????????? 28. Responsive ????????????????????????? */
@media (max-width: 1280px) {
    .container { padding: 0 32px; }
    .product-search-box { right: 32px; }
    .product-grid, .video-grid, .subcategory-block .product-grid { grid-template-columns: repeat(3, 1fr); }
    .category-line-grid { grid-template-columns: repeat(4, 1fr); }
    .cert-grid { grid-template-columns: repeat(4, 1fr); }
    .home-about__grid { gap: 40px; }
}

@media (max-width: 1024px) {
    .section { padding: 64px 0; }
    .section-title { font-size: 34px; margin-bottom: 28px; }
    .hero__title { font-size: 44px; }
    .list-layout { grid-template-columns: 240px minmax(0, 1fr); gap: 28px; }
    .product-detail { gap: 36px; }
    .product-params__table, .info-table { grid-template-columns: 1fr; }
    .media-grid { grid-template-columns: repeat(3, 1fr); }
    .home-block__grid { grid-template-columns: repeat(2, 1fr); }
    .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .section { padding: 52px 0; }
    .section-title { font-size: 28px; margin-bottom: 24px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 10px; }
    .page-hero { padding: 36px 0 32px; margin-bottom: 32px; }
    .page-hero__title { font-size: 30px; }

    /* Mobile header & nav */
    .site-header__inner { flex-wrap: wrap; min-height: 56px; gap: 12px; }
    .site-header__cta { display: none; }
    .mobile-menu-toggle { display: flex; }
    .main-nav {
        position: fixed; inset: 0; z-index: 980;
        background: rgba(0,0,0,.96);
        padding: 84px 24px 40px;
        overflow-y: auto;
        transform: translateX(100%); transition: transform .3s ease;
    }
    .main-nav.is-open { transform: translateX(0); }
    .main-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
    .main-nav__link { min-height: 48px; font-size: 16px; padding: 0 8px; width: 100%; }
    .main-nav__dropdown {
        position: static; transform: none; box-shadow: none; background: transparent;
        display: none; padding: 4px 0 8px 12px; min-width: 0;
    }
    .main-nav__item--has-children.is-open .main-nav__dropdown { display: block; }
    .main-nav__submenu { position: static; box-shadow: none; background: transparent; display: none; padding: 4px 0 4px 12px; min-width: 0; }
    .main-nav__dropdown-item:hover .main-nav__submenu { display: none; }
    .main-nav__dropdown-item.is-open .main-nav__submenu { display: block; }
    .product-search-box { right: 20px; left: 20px; width: auto; }

    .hero__slider { height: min(70vh, 560px); min-height: 400px; }
    .hero__title { font-size: 32px; }
    .hero__subtitle { font-size: 17px; }
    .hero__slider-nav { display: none; }

    .category-line-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .product-grid, .video-grid, .subcategory-block .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .home-block__grid { grid-template-columns: 1fr; }
    .home-about__grid, .about-intro__grid, .contact-grid { grid-template-columns: 1fr; }
    .home-about__media { order: -1; }
    .media-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .cert-grid, .cert-grid--page, .cert-grid--full { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .news-grid, .project-grid { grid-template-columns: 1fr; }
    .language-list { grid-template-columns: repeat(2, 1fr); }

    .list-layout { grid-template-columns: 1fr; }
    .category-sidebar { position: static; }

    .product-detail, .product-detail--2c { grid-template-columns: 1fr; }
    .product-detail__fact { grid-template-columns: 110px minmax(0, 1fr); }
    .inquiry-form .form-group { grid-template-columns: 1fr; }
    .inquiry-band__inner { flex-direction: column; align-items: flex-start; }
    .inquiry-band__title { font-size: 28px; }

    .news-card { grid-template-columns: 1fr; }
    .news-card__media { aspect-ratio: 16 / 9; height: auto; }
    .news-card__body { padding: 20px 22px 24px; }
    .article-detail__title { font-size: 28px; }
    .article-detail__prevnext { flex-direction: column; }
    .article-detail__prev, .article-detail__next { max-width: 100%; }
    .article-detail__next { text-align: left; }
    .history-list__item { grid-template-columns: 1fr; gap: 8px; }
    .download-card { grid-template-columns: 72px minmax(0, 1fr); grid-template-rows: auto auto; }
    .download-card__btn { grid-column: 2; justify-self: start; }
    .download-card__thumb { width: 72px; height: 54px; }
    .contact-info__row, .info-table__row, .product-params__row { grid-template-columns: 1fr; gap: 2px; }
    .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
    .site-footer { padding-top: 56px; }
    .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
    .product-grid, .video-grid, .subcategory-block .product-grid { grid-template-columns: 1fr; }
    .cert-grid, .cert-grid--page, .cert-grid--full { grid-template-columns: repeat(2, 1fr); }
    .media-grid { grid-template-columns: 1fr; }
    .language-list { grid-template-columns: 1fr; }
    .hero__title { font-size: 28px; }
    .btn { width: 100%; }
    .product-detail__actions .btn, .video-detail__actions .btn, .inquiry-band__actions .btn, .home-about__actions .btn { width: 100%; }
}