/* =========================================================
   SenSource Mfg — Premium B2B Theme
   ========================================================= */
:root {
  --ink: #0c1420;
  --ink-2: #16222f;
  --ink-3: #1e2d3d;
  --body: #4b5a68;
  --muted: #8494a3;
  --line: #e6eaef;
  --bg: #ffffff;
  --bg-soft: #f5f7f9;
  --brand: #e8622a;
  --brand-deep: #cf4f1c;
  --brand-grad: linear-gradient(135deg, #f6843e 0%, #e8622a 55%, #d44f19 100%);
  --brand-soft: #fdf0e9;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(12, 20, 32, .06);
  --shadow-md: 0 14px 34px rgba(12, 20, 32, .10);
  --shadow-lg: 0 24px 60px rgba(12, 20, 32, .16);
  --wrap: 1240px;
  --head-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Manrope', -apple-system, 'Segoe UI', Arial, sans-serif;
  color: var(--body);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: 'Sora', sans-serif; color: var(--ink); line-height: 1.25; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--brand); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: #c3ccd5; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand); }

.container { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 700; font-size: 14.5px; letter-spacing: .02em;
  transition: transform .25s, box-shadow .25s, background .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brand-grad); color: #fff; box-shadow: 0 10px 24px rgba(232, 98, 42, .35); position: relative; overflow: hidden; }
.btn-primary::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .6s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(232, 98, 42, .45); }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-glass { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.4); backdrop-filter: blur(8px); }
.btn-glass:hover { background: rgba(255,255,255,.24); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--brand-deep); box-shadow: 0 12px 28px rgba(0,0,0,.25); }
.btn-light:hover { transform: translateY(-2px); }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-wa { background: #25d366; color: #fff; }
.btn-wa:hover { background: #1fb857; transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Topbar ---------- */
.topbar { background: var(--ink); color: #b9c5d0; font-size: 13px; }
.topbar .container { display: flex; align-items: center; justify-content: space-between; min-height: 38px; gap: 16px; }
.tb-left { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.tb-left a { display: inline-flex; align-items: center; gap: 6px; color: #b9c5d0; }
.tb-left a:hover { color: #fff; }
.tb-right { display: flex; align-items: center; gap: 16px; }
.tb-note { color: #e8a06f; font-weight: 600; }

/* ---------- Masthead ---------- */
.masthead { background: #fff; border-bottom: 1px solid var(--line); transition: box-shadow .3s; position: relative; z-index: 50; }
.masthead .container { display: flex; align-items: center; gap: 28px; min-height: var(--head-h); }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 13px; background: var(--brand-grad);
  color: #fff; font: 800 24px/46px 'Sora', sans-serif; text-align: center;
  box-shadow: 0 8px 18px rgba(232, 98, 42, .35);
}
.brand-name { display: flex; flex-direction: column; }
.brand-name b { font: 800 19px/1.15 'Sora', sans-serif; color: var(--ink); letter-spacing: .01em; }
.brand-name i { font-style: normal; font-size: 11px; color: var(--muted); letter-spacing: .14em; text-transform: uppercase; }
.searchrow {
  flex: 1; display: flex; align-items: center; gap: 10px; max-width: 560px;
  background: var(--bg-soft); border: 1.5px solid transparent; border-radius: 999px; padding: 4px 4px 4px 18px;
  transition: border-color .25s, background .25s, box-shadow .25s;
}
.searchrow:focus-within { border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(232,98,42,.12); }
.search-ic { color: var(--muted); flex-shrink: 0; }
.searchrow input { flex: 1; border: 0; outline: 0; background: none; font: 500 14px/1.4 'Manrope', sans-serif; color: var(--ink); min-width: 0; }
.searchrow button { background: var(--brand-grad); color: #fff; border: 0; border-radius: 999px; padding: 9px 22px; font-weight: 700; font-size: 13.5px; }
.searchrow button:hover { filter: brightness(1.06); }
.masthead-tools { margin-inline-start: auto; }
.masthead.is-scrolled { box-shadow: var(--shadow-md); }

/* ---------- Main nav ---------- */
.mainnav { background: var(--ink); position: sticky; top: 0; z-index: 40; box-shadow: 0 4px 20px rgba(0,0,0,.25); }
.mainnav .container { display: flex; align-items: center; }
.mainnav ul { display: flex; }
.mainnav ul > li > a {
  display: block; color: #ccd6df; font-weight: 700; font-size: 14.5px; letter-spacing: .03em;
  padding: 17px 22px; position: relative;
}
.mainnav ul > li > a::after {
  content: ''; position: absolute; inset-inline: 22px; bottom: 0; height: 3px;
  background: var(--brand-grad); border-radius: 3px 3px 0 0;
  transform: scaleX(0); transform-origin: center; transition: transform .28s;
}
.mainnav ul > li:hover > a, .mainnav ul > li > a:hover { color: #fff; }
.mainnav ul > li:hover > a::after { transform: scaleX(1); }
.mainnav .nav-wa { margin-inline-start: auto; color: #7fe0a8; font-weight: 700; font-size: 13.5px; display: inline-flex; align-items: center; gap: 6px; }
.mainnav .nav-wa:hover { color: #a5f0c3; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 22px; padding: 10px 4px; }

/* Dropdown */
.has-drop { position: relative; }
.drop {
  position: absolute; top: 100%; inset-inline-start: 0; z-index: 55;
  background: #fff; border-radius: 0 0 16px 16px; box-shadow: var(--shadow-lg);
  padding: 18px; width: min(560px, 90vw);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s;
}
.has-drop:hover .drop { opacity: 1; visibility: visible; transform: translateY(0); }
.drop-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px 14px; }
.drop-grid a { padding: 9px 10px; border-radius: 8px; font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.drop-grid a:hover { background: var(--brand-soft); color: var(--brand); }

/* ---------- Flash ---------- */
.flash { margin: 14px auto; padding: 13px 20px; border-radius: 12px; font-weight: 600; }
.flash.success { background: #e9f9ef; color: #157347; border: 1px solid #bfe9cf; }
.flash.error { background: #fdecec; color: #b02a37; border: 1px solid #f5c6cb; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 640px; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; animation: heroZoom 18s ease-out forwards; }
@keyframes heroZoom { from { transform: scale(1.12); } to { transform: scale(1); } }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(9,15,24,.92) 8%, rgba(9,15,24,.72) 46%, rgba(9,15,24,.25) 100%);
}
.hero-inner { position: relative; z-index: 2; padding: 90px 24px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(232,98,42,.16); border: 1px solid rgba(232,98,42,.5); color: #ffb894;
  padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
}
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 0 rgba(232,98,42,.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(232,98,42,0); } 100% { box-shadow: 0 0 0 0 rgba(232,98,42,0); } }
.hero h1 {
  color: #fff; font-size: clamp(34px, 4.6vw, 58px); font-weight: 800;
  max-width: 700px; margin: 22px 0 18px; letter-spacing: -.01em;
}
.hero-sub { color: #c2cdd8; font-size: 17.5px; max-width: 620px; }
.hero-ctas { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 14px; margin-top: 52px; flex-wrap: wrap; }
.hs {
  background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(10px); border-radius: 14px; padding: 14px 24px; min-width: 132px;
}
.hs b { display: block; font: 800 26px/1.2 'Sora', sans-serif; color: #fff; }
.hs b em { font-style: normal; color: #ff9a63; }
.hs span { font-size: 12.5px; color: #aebbc7; letter-spacing: .04em; }

/* ---------- Markets marquee ---------- */
.markets { background: var(--brand-grad); color: #fff; overflow: hidden; }
.markets-track { display: flex; align-items: center; gap: 44px; padding: 13px 0; white-space: nowrap; width: max-content; animation: marquee 30s linear infinite; }
.markets:hover .markets-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.markets-label { font-weight: 800; font-size: 13.5px; letter-spacing: .12em; text-transform: uppercase; background: rgba(255,255,255,.16); padding: 5px 14px; border-radius: 999px; }
.mk { font-weight: 700; font-size: 15px; letter-spacing: .03em; }
.mk i { font-style: normal; font-size: 9px; color: rgba(255,255,255,.55); margin-inline-end: 44px; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-soft); }
.section-dark { background: radial-gradient(1200px 500px at 85% -10%, rgba(232,98,42,.16), transparent 60%), var(--ink); }
.sec-head { max-width: 660px; margin: 0 auto 52px; text-align: center; }
.sec-head-left { margin-inline: 0; text-align: start; }
.sec-head-light h2 { color: #fff; }
.sec-head-light p { color: #9aa8b5; }
.eyebrow { display: inline-block; color: var(--brand); font-weight: 800; font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 12px; }
.sec-head h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; letter-spacing: -.01em; }
.sec-head p { margin-top: 14px; color: var(--body); font-size: 16px; }

/* ---------- Category grid ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 16px; }
.cat-card {
  position: relative; border-radius: 14px; overflow: hidden; aspect-ratio: 1/1.12;
  box-shadow: var(--shadow-sm); outline: 2px solid transparent; outline-offset: 2px;
  transition: transform .3s, box-shadow .3s, outline-color .3s;
}
.cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.cat-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(10,16,24,.78)); }
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); outline-color: var(--brand); }
.cat-card:hover img { transform: scale(1.08); }
.cat-name { position: absolute; inset-inline: 10px; bottom: 12px; z-index: 2; color: #fff; font-weight: 700; font-size: 13.5px; line-height: 1.35; }

/* ---------- Product cards ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-grid-4 { grid-template-columns: repeat(4, 1fr); }
.prod-card {
  background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  display: flex; flex-direction: column;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.prod-img { position: relative; display: block; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-soft); }
.prod-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s; }
.prod-card:hover .prod-img img { transform: scale(1.07); }
.tag-new {
  position: absolute; top: 12px; inset-inline-start: 12px; z-index: 2;
  background: var(--brand-grad); color: #fff; font-size: 11.5px; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px;
  box-shadow: 0 6px 14px rgba(232,98,42,.4);
}
.prod-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.prod-name { font-weight: 800; font-size: 15.5px; color: var(--ink); line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.prod-name:hover { color: var(--brand); }
.prod-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-meta span { font-size: 12px; color: var(--muted); background: var(--bg-soft); border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; }
.prod-ctas { display: flex; gap: 8px; margin-top: auto; }

/* ---------- Why cards ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .3s, box-shadow .3s, border-color .3s;
}
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.why-ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 15px; background: var(--brand-soft);
  color: var(--brand); font-size: 24px; margin-bottom: 18px;
  transition: background .3s, color .3s, transform .3s;
}
.why-card:hover .why-ic { background: var(--brand-grad); color: #fff; transform: rotate(-6deg) scale(1.05); }
.why-card h3 { font-size: 17px; margin-bottom: 10px; }
.why-card p { font-size: 14.5px; }

/* ---------- Process ---------- */
.proc-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.proc-step { position: relative; padding-top: 8px; }
.proc-step i {
  display: inline-flex; align-items: center; justify-content: center;
  font: 800 15px/1 'Sora', sans-serif; font-style: normal; color: #fff;
  width: 44px; height: 44px; border-radius: 13px; background: var(--brand-grad);
  margin-bottom: 16px; box-shadow: 0 8px 18px rgba(232,98,42,.35);
}
.proc-step h3 { color: #fff; font-size: 15.5px; margin-bottom: 8px; }
.proc-step p { color: #9aa8b5; font-size: 13.5px; line-height: 1.6; }
.proc-step::after { content: ''; position: absolute; top: 30px; inset-inline-start: 54px; inset-inline-end: -10px; height: 1.5px; background: rgba(255,255,255,.14); }
.proc-step:last-child::after { display: none; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 12% 120%, rgba(232,98,42,.35), transparent 60%),
    radial-gradient(700px 300px at 88% -20%, rgba(232,98,42,.28), transparent 60%),
    var(--ink-2);
  padding: 72px 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: clamp(24px, 2.6vw, 32px); }
.cta-inner p { color: #aebbc7; margin-top: 10px; }

/* ---------- News ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-card > img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }
.news-body { padding: 22px; }
.news-date { color: var(--muted); font-size: 12.5px; font-weight: 700; letter-spacing: .06em; }
.news-body h3 { font-size: 17.5px; margin: 8px 0 10px; line-height: 1.45; }
.news-card:hover h3 { color: var(--brand); }
.news-body p { font-size: 14.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { display: inline-block; margin-top: 14px; color: var(--brand); font-weight: 800; font-size: 13.5px; }
.news-card:hover .news-more { letter-spacing: .04em; }

/* ---------- Breadcrumb ---------- */
.crumb { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 13px 0; font-size: 13.5px; color: var(--muted); }
.crumb .container { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.crumb a:hover { color: var(--brand); }
.crumb span { color: var(--ink); font-weight: 700; }

/* ---------- Feature list / result ---------- */
.feat-list { margin: 6px 0 8px; }
.feat-list li { position: relative; padding: 5px 0 5px 24px; font-size: 15px; }
.feat-list li::before {
  content: ''; position: absolute; inset-inline-start: 0; top: 13px;
  width: 7px; height: 7px; border-radius: 2px; background: var(--brand-grad); transform: rotate(45deg);
}
.result-count { color: var(--muted); font-size: 14px; font-weight: 600; margin-bottom: 22px; }
.empty-box { text-align: center; padding: 70px 20px; background: var(--bg-soft); border-radius: var(--radius); }
.empty-box h3 { margin-bottom: 10px; }
.empty-box a { color: var(--brand); font-weight: 700; }
.list-pager { margin-top: 40px; }

/* ---------- Pagination ---------- */
.pg { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.pg a, .pg span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px; border-radius: 10px;
  border: 1px solid var(--line); font-weight: 700; font-size: 14px; color: var(--ink); background: #fff;
}
.pg a:hover { border-color: var(--brand); color: var(--brand); }
.pg span.pg-current { background: var(--brand-grad); color: #fff; border-color: transparent; box-shadow: 0 8px 18px rgba(232,98,42,.3); }

/* ---------- Detail page ---------- */
.detail-layout { display: grid; grid-template-columns: 1fr 380px; gap: 44px; align-items: start; }
.detail-gallery { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.detail-gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .6s; }
.detail-gallery:hover img { transform: scale(1.04); }
.detail-title { font-size: clamp(24px, 2.8vw, 34px); margin: 26px 0 6px; }
.detail-model { color: var(--muted); font-size: 14.5px; }
.detail-attrs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 24px 0 6px; }
.detail-attrs > div { background: var(--bg-soft); border-radius: 12px; padding: 13px 16px; }
.detail-attrs span { display: block; color: var(--muted); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; font-weight: 700; }
.detail-attrs b { color: var(--ink); font-size: 14.5px; }
.cert-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0; }
.cert-badge { border: 1px solid var(--line); border-radius: 999px; padding: 5px 16px; font-size: 13px; font-weight: 700; color: var(--ink-2); }
.detail-block { margin-top: 34px; }
.detail-block h2 { font-size: 20px; margin-bottom: 14px; padding-inline-start: 14px; border-inline-start: 4px solid var(--brand); }
.detail-block p { white-space: pre-line; }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.spec-table th, .spec-table td { padding: 12px 18px; border-bottom: 1px solid var(--line); font-size: 14.5px; text-align: start; vertical-align: top; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 180px; background: var(--bg-soft); color: var(--ink); font-weight: 700; }
.spec-table td { color: var(--body); }
.detail-side { position: sticky; top: 76px; }
.inq-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 28px; }
.inq-card h3 { font-size: 20px; }
.inq-tip { color: var(--brand); font-weight: 700; font-size: 13.5px; margin: 6px 0 18px; }
.inq-card form { display: grid; gap: 12px; }
.inq-card input, .inq-card textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 15px;
  font: 500 14px/1.5 'Manrope', sans-serif; color: var(--ink); outline: 0; background: var(--bg-soft);
  transition: border-color .2s, box-shadow .2s, background .2s; resize: vertical;
}
.inq-card input:focus, .inq-card textarea:focus { border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(232,98,42,.1); }
.inq-card .btn { margin-top: 2px; }

/* ---------- Contact ---------- */
.contact-wrap { display: block; }
.contact-grid { display: grid; grid-template-columns: 1fr 460px; gap: 44px; align-items: start; }
.contact-list { display: grid; gap: 4px; margin: 26px 0; }
.contact-list li { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.contact-list b { color: var(--ink); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; align-self: center; }
.contact-list a { color: var(--brand); font-weight: 700; }
.faq { margin-top: 70px; }
.faq .sec-head { margin-bottom: 34px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; background: #fff; overflow: hidden; transition: box-shadow .25s, border-color .25s; }
.faq-item[open] { border-color: rgba(232,98,42,.4); box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 800; color: var(--ink); font-size: 15.5px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 20px; color: var(--brand); font-weight: 700; transition: transform .25s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 22px 18px; font-size: 14.5px; }

/* ---------- About ---------- */
.about-wrap { max-width: 920px; }
.article-content { font-size: 16px; color: var(--body); }
.about-stats { display: flex; gap: 14px; flex-wrap: wrap; margin: 36px 0 8px; }
.about-stats .hs { background: var(--ink); border-color: rgba(255,255,255,.1); }
.about-markets { color: var(--muted); font-size: 14px; margin: 14px 0 40px; }
.about-wrap .why-grid { margin-top: 50px; }

/* ---------- Article ---------- */
.article-wrap { max-width: 860px; }
.article h1 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 12px; }
.article-meta { color: var(--muted); font-size: 13.5px; margin-bottom: 26px; }
.article-img { border-radius: var(--radius); margin-bottom: 26px; box-shadow: var(--shadow-md); }
.article-excerpt { background: var(--brand-soft); border-inline-start: 4px solid var(--brand); padding: 16px 20px; border-radius: 0 12px 12px 0; font-size: 15.5px; margin-bottom: 24px; }
.article-cta { margin-top: 44px; background: var(--bg-soft); border-radius: var(--radius); padding: 30px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.article-cta h3 { flex: 1; min-width: 220px; font-size: 19px; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: #93a2b0; margin-top: 0; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; padding: 70px 24px 50px; }
.foot-about .brand-name b { color: #fff; }
.foot-about .brand-name i { color: #7d8c9a; }
.foot-about p { margin-top: 18px; font-size: 14px; line-height: 1.8; }
.foot-markets { color: #ff9a63; font-weight: 600; }
.foot-col h4 { color: #fff; font-size: 14.5px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 20px; }
.foot-col ul { display: grid; gap: 10px; }
.foot-col ul a { font-size: 14px; color: #93a2b0; }
.foot-col ul a:hover { color: #ff9a63; padding-inline-start: 4px; }
.foot-contact li { font-size: 14px; line-height: 1.6; }
.foot-contact a { color: #ff9a63; font-weight: 600; }
.foot-col .btn { margin-top: 18px; }
.foot-base { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; font-size: 13px; }

/* ---------- Back to top ---------- */
.backtop {
  position: fixed; inset-inline-end: 26px; bottom: 26px; z-index: 80;
  width: 46px; height: 46px; border-radius: 14px; border: 0;
  background: var(--brand-grad); color: #fff; box-shadow: 0 12px 26px rgba(232,98,42,.4);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all .3s;
}
.backtop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.backtop:hover { transform: translateY(-4px); }

/* ---------- Reveal animations ---------- */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2,.65,.3,1), transform .7s cubic-bezier(.2,.65,.3,1); transition-delay: var(--rd, 0ms); }
[data-reveal].revealed { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .cat-grid { grid-template-columns: repeat(6, 1fr); }
  .proc-grid { grid-template-columns: repeat(3, 1fr); gap: 30px; }
  .proc-step::after { display: none; }
  .why-grid, .prod-grid, .prod-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-side { position: static; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .searchrow { max-width: none; }
}
@media (max-width: 860px) {
  .masthead .container { flex-wrap: wrap; padding-block: 12px; gap: 14px; }
  .searchrow { order: 3; flex-basis: 100%; }
  .mainnav ul { display: none; position: absolute; top: 100%; inset-inline: 0; background: var(--ink-2); flex-direction: column; padding: 10px 18px 18px; box-shadow: var(--shadow-lg); }
  .mainnav ul.open { display: flex; }
  .mainnav .nav-toggle { display: block; }
  .mainnav .nav-wa { display: none; }
  .drop { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: transparent; padding: 0 0 0 18px; width: auto; }
  .drop-grid { grid-template-columns: repeat(2, 1fr); }
  .drop-grid a { color: #aebbc7; }
  .drop-grid a:hover { background: rgba(255,255,255,.06); color: #fff; }
  .hero { min-height: 560px; }
  .contact-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .detail-attrs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .why-grid, .prod-grid, .prod-grid-4 { grid-template-columns: 1fr; }
  .proc-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 34px; }
  .tb-left { display: none; }
  .topbar .container { justify-content: flex-end; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .hero-ctas .btn { flex: 1; }
  .backtop { inset-inline-end: 16px; bottom: 16px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Home: Certifications ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cert-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cert-badge { display: inline-flex; align-items: center; gap: 10px; font-family: 'Sora', sans-serif; font-weight: 700; font-size: 19px; color: var(--ink); }
.cert-badge i {
  width: 42px; height: 42px; border-radius: 12px; background: var(--brand-soft); color: var(--brand-deep);
  display: inline-flex; align-items: center; justify-content: center; font-size: 19px; font-style: normal; font-weight: 800;
}
.cert-card p { margin-top: 12px; font-size: 14.5px; line-height: 1.65; }

/* ---------- Home: Factory gallery ---------- */
.gal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gal-item {
  position: relative; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-sm);
}
.gal-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gal-item:hover img { transform: scale(1.06); }
.gal-item figcaption {
  position: absolute; inset-inline: 0; bottom: 0; padding: 26px 14px 12px;
  background: linear-gradient(to top, rgba(12, 20, 32, .82), transparent);
  color: #fff; font-size: 13.5px; font-weight: 600; letter-spacing: .01em;
}
.gal-item:nth-child(1), .gal-item:nth-child(8) { grid-column: span 2; aspect-ratio: 8 / 3; }

/* ---------- Home: Testimonials ---------- */
.test-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.test-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--shadow-sm); position: relative; transition: transform .25s, box-shadow .25s;
}
.test-card::before {
  content: '\201C'; position: absolute; top: 6px; inset-inline-end: 20px;
  font-size: 72px; line-height: 1; color: var(--brand-soft); font-family: Georgia, serif;
}
.test-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.test-stars { color: #f5a623; letter-spacing: 3px; font-size: 15px; }
.test-card p { margin-top: 12px; color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.test-card footer { margin-top: 18px; display: flex; align-items: center; gap: 10px; }
.test-card footer b { font-family: 'Sora', sans-serif; color: var(--ink); font-size: 14.5px; }
.test-card footer span { color: var(--muted); font-size: 13px; }
.test-card footer::before { content: ''; width: 26px; height: 2px; background: var(--brand); border-radius: 2px; }

@media (max-width: 1024px) {
  .cert-grid, .gal-grid { grid-template-columns: repeat(2, 1fr); }
  .test-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cert-grid { grid-template-columns: 1fr; }
  .gal-grid { grid-template-columns: 1fr; }
  .gal-item:nth-child(1), .gal-item:nth-child(8) { grid-column: span 1; aspect-ratio: 4 / 3; }
}