/* ============================================================
   山东英士仑化工有限责任公司  —  站点样式
   Theme: corporate blue + orange accent
   ============================================================ */

:root {
  --blue-900: #0f4459;
  --blue-800: #165d7f;
  --blue-700: #2079a8;
  --blue-500: #2994d1;
  --blue-300: #33aeea;
  --blue-050: #eef6fb;
  --orange: #fd7d26;
  --orange-dark: #e56a15;
  --ink: #22303a;
  --text: #4a5b66;
  --muted: #8a97a1;
  --line: #e3eaf0;
  --bg: #ffffff;
  --bg-soft: #f4f8fb;
  --radius: 10px;
  --shadow-sm: 0 2px 10px rgba(22, 93, 127, 0.06);
  --shadow: 0 10px 30px rgba(22, 93, 127, 0.12);
  --wrap: 1200px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--blue-700); }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { color: var(--ink); margin: 0 0 .5em; font-weight: 700; line-height: 1.3; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.center { text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: 12px 30px; border-radius: 40px; font-weight: 600; font-size: 15px;
  border: 2px solid transparent; cursor: pointer; transition: all .28s var(--ease);
  background: var(--blue-700); color: #fff;
}
.btn:hover { background: var(--blue-800); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-accent { background: var(--orange); }
.btn-accent:hover { background: var(--orange-dark); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--blue-800); }
.btn-line { background: transparent; border-color: var(--blue-700); color: var(--blue-700); }
.btn-line:hover { background: var(--blue-700); color: #fff; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--blue-900); color: #cfe3ee; font-size: 13px;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar .tb-left { display: flex; gap: 22px; align-items: center; }
.topbar .tb-left span { display: inline-flex; align-items: center; gap: 6px; }
.topbar .tb-left svg { width: 14px; height: 14px; fill: var(--blue-300); }
.topbar a { color: #cfe3ee; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 14px; align-items: center; }
.topbar .tb-right a { padding: 2px 4px; }
.topbar .tb-right a.is-current { color: #fff; font-weight: 700; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 84px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { height: 64px; width: auto; display: block; }
.brand-logo--footer { height: 62px; }

.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
  display: block; padding: 10px 16px; border-radius: 8px; font-weight: 600; color: var(--ink); font-size: 15px;
  position: relative;
}
.main-nav a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .28s var(--ease);
}
.main-nav a:hover { color: var(--blue-700); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--blue-800); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; cursor: pointer; padding: 0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: var(--blue-800); border-radius: 2px; margin: 0 auto; position: relative;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* ---------- Hero slider ---------- */
.hero { position: relative; height: 620px; overflow: hidden; background: var(--blue-800); }
.slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1s var(--ease);
  display: flex; align-items: center; justify-content: center; text-align: center; color: #fff;
}
.slide.active { opacity: 1; }
.slide .slide-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.slide-1 .slide-bg {
  background-image: linear-gradient(rgba(9,42,58,.62), rgba(9,42,58,.74)), url(../images/hero-1.jpg?v=5); }
.slide-2 .slide-bg {
  background-image: linear-gradient(rgba(9,42,58,.60), rgba(9,42,58,.72)), url(../images/hero-2.jpg?v=5); }
.slide-3 .slide-bg {
  background-image: linear-gradient(rgba(9,42,58,.58), rgba(9,42,58,.72)), url(../images/hero-3.jpg?v=5); }
.slide .slide-bg::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 45%, rgba(0,0,0,0), rgba(6,30,42,.45) 100%);
}
.slide .slide-inner { position: relative; z-index: 2; width: 100%; max-width: 860px; padding: 0 24px; }
.slide .eyebrow { display: inline-block; font-size: 14px; letter-spacing: 3px; color: var(--blue-300); text-transform: uppercase; margin-bottom: 14px; }
.slide h1 { color: #fff; font-size: 46px; line-height: 1.25; margin-bottom: 16px; }
.slide p { font-size: 18px; color: rgba(255,255,255,.85); margin: 0 0 26px; }
.slide .slide-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero-dots { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 5; }
.hero-dots button {
  width: 34px; height: 4px; border: none; border-radius: 4px; background: rgba(255,255,255,.4); cursor: pointer; padding: 0; transition: background .3s;
}
.hero-dots button.active { background: var(--orange); }

/* ---------- Stats ---------- */
.stats { background: var(--blue-800); color: #fff; }
.stats .wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 0 24px; }
.stat { padding: 40px 20px; text-align: center; border-right: 1px solid rgba(255,255,255,.12); }
.stat:last-child { border-right: none; }
.stat .num { font-size: 44px; font-weight: 800; color: #fff; line-height: 1; }
.stat .num small { font-size: 22px; color: var(--blue-300); margin-left: 2px; }
.stat .label { margin-top: 8px; color: #bcd8e6; font-size: 15px; }

/* ---------- Sections ---------- */
section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.section-head .kicker { color: var(--orange); font-weight: 700; letter-spacing: 3px; font-size: 13px; text-transform: uppercase; }
.section-head h2 { font-size: 34px; margin: 10px 0 12px; }
.section-head p { color: var(--muted); margin: 0; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.about-media { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 380px; box-shadow: var(--shadow); }
.about-media .media-bg { position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(22,93,127,.32), rgba(41,148,209,.22)),
    url(../images/about.jpg?v=5) center/cover no-repeat;
}
/* 关于我们页的「企业简介」用另一张配图 */
.about-media--profile .media-bg {
  background: linear-gradient(135deg, rgba(22,93,127,.32), rgba(41,148,209,.22)),
    url(../images/about-profile.jpg) center/cover no-repeat;
}
.about-media .media-bg::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,30,42,0) 45%, rgba(6,30,42,.35) 100%); }
.about-media .media-badge {
  position: absolute; left: 26px; bottom: 26px; z-index: 2; background: rgba(255,255,255,.96);
  border-radius: 10px; padding: 16px 22px; box-shadow: var(--shadow);
}
.about-media .media-badge b { display: block; font-size: 30px; color: var(--blue-800); line-height: 1; }
.about-media .media-badge span { color: var(--muted); font-size: 13px; }
.about-copy p { color: var(--text); }
.about-copy .lead { font-size: 17px; color: var(--ink); }
.about-list { display: grid; gap: 12px; margin: 22px 0 28px; }
.about-list li { display: flex; gap: 12px; align-items: flex-start; }
.about-list .tick { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--blue-050); color: var(--blue-700); display: grid; place-items: center; font-size: 12px; font-weight: 700; margin-top: 3px; }

/* ---------- Cards / Products ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: all .3s var(--ease); display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card .thumb { display: block; height: 190px; position: relative; background-size: cover; background-position: center; }
.card .thumb.t1 { background-image: url(../images/product-1.jpg?v=5); }
.card .thumb.t2 { background-image: url(../images/product-2.jpg?v=3); }
.card .thumb.t3 { background-image: url(../images/product-3.jpg?v=5); }
.card .thumb.t4 { background-image: url(../images/product-4.jpg?v=5); }
.card .thumb::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,30,42,0) 55%, rgba(6,30,42,.45) 100%); }
.card .thumb .icon {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  min-width: 38px; height: 26px; padding: 0 8px; border-radius: 6px;
  background: rgba(255,255,255,.92); color: var(--blue-800);
  display: grid; place-items: center; font-size: 13px; font-weight: 800; letter-spacing: .5px;
}
.card .body { padding: 22px 22px 26px; flex: 1; display: flex; flex-direction: column; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { margin: 0 0 16px; color: var(--text); font-size: 14px; flex: 1; }
.card .more { color: var(--blue-700); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.card .more::after { content: "→"; transition: transform .25s var(--ease); }
.card:hover .more::after { transform: translateX(4px); }

/* ---------- Why us ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why { background: #fff; border-radius: var(--radius); padding: 30px 26px; border: 1px solid var(--line); transition: all .3s var(--ease); }
.why:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.why .ic { width: 54px; height: 54px; border-radius: 14px; background: var(--blue-050); color: var(--blue-700); display: grid; place-items: center; font-size: 24px; margin-bottom: 16px; }
.why h3 { font-size: 17px; margin-bottom: 8px; }
.why p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(120deg, var(--blue-800), var(--blue-500)); color: #fff; position: relative; overflow: hidden; }
.cta::after { content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 85% 20%, rgba(253,125,38,.35), transparent 45%); }
.cta .wrap { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta h2 { color: #fff; font-size: 30px; margin: 0 0 6px; }
.cta p { margin: 0; color: rgba(255,255,255,.85); }

/* ---------- News ---------- */
.news-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
.news-feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.news-feature .nf-thumb { height: 240px; background: url(../images/news-1.jpg?v=5) center/cover no-repeat; position: relative; }
.news-item.with-thumb { display: flex; gap: 16px; align-items: center; }
.news-item .ni-thumb { flex: none; width: 116px; height: 84px; border-radius: 8px; background-size: cover; background-position: center; }
.news-feature .nf-body { padding: 26px; }
.news-feature .date { color: var(--orange); font-weight: 700; font-size: 13px; }
.news-feature h3 { font-size: 20px; margin: 8px 0 10px; }
.news-list { display: grid; gap: 16px; }
.news-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; transition: all .3s var(--ease); }
.news-item:hover { box-shadow: var(--shadow-sm); border-color: var(--blue-300); }
.news-item .date { color: var(--muted); font-size: 13px; }
.news-item h4 { margin: 6px 0 0; font-size: 16px; }

/* ---------- Factory video gallery ---------- */
.video-gallery { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 22px; height: 400px; }
.video-card {
  position: relative; margin: 0; border-radius: var(--radius); overflow: hidden;
  background: var(--blue-900); box-shadow: var(--shadow-sm); cursor: pointer;
}
.video-card video { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-card figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 36px 20px 16px; z-index: 2;
  background: linear-gradient(180deg, rgba(6,30,42,0), rgba(6,30,42,.82)); color: #fff;
}
.video-card figcaption b { display: block; font-size: 16px; color: #fff; }
.video-card figcaption span { font-size: 13px; color: rgba(255,255,255,.78); }
.video-card .v-play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 62px; height: 62px; padding: 0; border-radius: 50%; z-index: 3; cursor: pointer;
  border: 2px solid rgba(255,255,255,.85); background: rgba(20,50,66,.35);
  backdrop-filter: blur(3px); transition: all .28s var(--ease);
}
.video-card .v-play::after {
  content: ""; position: absolute; left: 54%; top: 50%; transform: translate(-50%,-50%);
  border-left: 16px solid #fff; border-top: 10px solid transparent; border-bottom: 10px solid transparent;
}
.video-card .v-play:hover { background: var(--orange); border-color: var(--orange); }
.video-card.is-playing .v-play { opacity: 0; visibility: hidden; }
.video-card--main .v-play { display: none; }
.video-card .v-sound {
  position: absolute; right: 16px; top: 16px; width: 38px; height: 38px; padding: 0;
  border-radius: 50%; z-index: 4; cursor: pointer; line-height: 1; font-size: 15px;
  border: 1px solid rgba(255,255,255,.7); background: rgba(20,50,66,.45);
  backdrop-filter: blur(3px); transition: all .28s var(--ease);
  display: grid; place-items: center;
}
.video-card .v-sound:hover { background: var(--orange); border-color: var(--orange); }
.video-card .v-sound.on { background: rgba(253,125,38,.92); border-color: var(--orange); }

/* ---------- Product detail pages ---------- */
.detail-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 48px; align-items: center; }
.detail-copy .kicker { color: var(--orange); font-weight: 700; letter-spacing: 3px; font-size: 13px; text-transform: uppercase; }
.detail-copy h2 { font-size: 30px; margin: 10px 0 14px; }
.detail-copy .lead { font-size: 17px; color: var(--ink); }
.detail-copy .about-list { margin: 20px 0 26px; }
.detail-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--blue-900); }
.detail-media img { width: 100%; max-height: 470px; object-fit: cover; display: block; }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery--few { grid-template-columns: repeat(2, 1fr); max-width: 860px; margin: 0 auto; }
.gallery--few .g-item:only-child { grid-column: span 2; }
.g-item { margin: 0; border-radius: var(--radius); overflow: hidden; cursor: zoom-in;
  background: var(--blue-900); box-shadow: var(--shadow-sm); }
.g-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; transition: transform .45s var(--ease); }
.g-item:hover img { transform: scale(1.05); }

.lightbox { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center;
  background: rgba(6,30,42,.94); padding: 56px 20px 24px; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 6px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.lightbox .lb-close { position: absolute; top: 16px; right: 20px; width: 44px; height: 44px; padding: 0;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.6); background: rgba(255,255,255,.12);
  color: #fff; font-size: 22px; line-height: 1; cursor: pointer; transition: all .25s var(--ease); }
.lightbox .lb-close:hover { background: var(--orange); border-color: var(--orange); }

/* ---------- Page banner (inner pages) ---------- */
.page-banner { background: linear-gradient(120deg, var(--blue-900), var(--blue-700)); color: #fff; padding: 70px 0 60px; position: relative; overflow: hidden; }
.page-banner::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 80% 30%, rgba(41,148,209,.4), transparent 50%); }
.page-banner .wrap { position: relative; z-index: 2; }
.page-banner h1 { color: #fff; font-size: 38px; margin: 0 0 8px; }
.breadcrumb { font-size: 14px; color: #bcd8e6; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { margin: 0 8px; opacity: .6; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.info-cards { display: grid; gap: 18px; }
.info-card { display: flex; gap: 16px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: all .3s var(--ease); }
.info-card:hover { box-shadow: var(--shadow-sm); border-color: var(--blue-300); }
.info-card .ico { flex: none; width: 46px; height: 46px; border-radius: 12px; background: var(--blue-050); color: var(--blue-700); display: grid; place-items: center; font-size: 20px; }
.info-card h4 { margin: 0 0 4px; font-size: 15px; }
.info-card p { margin: 0; color: var(--text); font-size: 14px; }
.info-card a { color: var(--blue-700); font-weight: 600; }

/* Company / bank details table */
.detail-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.detail-table caption { text-align: left; font-weight: 700; color: var(--ink); font-size: 18px; padding: 0 0 16px; }
.detail-table th, .detail-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.detail-table tr:last-child th, .detail-table tr:last-child td { border-bottom: none; }
.detail-table th { width: 150px; background: var(--bg-soft); color: var(--ink); font-weight: 600; white-space: nowrap; }
.detail-table td { color: var(--text); font-family: "Segoe UI", Consolas, monospace; letter-spacing: .3px; }
.detail-table td.strong { color: var(--blue-800); font-weight: 700; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 20px; margin-bottom: 4px; }
.form-card .sub { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; color: var(--ink); font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; font: inherit; color: var(--ink);
  transition: border-color .25s, box-shadow .25s; background: #fff;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(41,148,209,.14); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.form-ok { display: none; margin-top: 14px; padding: 12px 16px; border-radius: 8px; background: #eaf7ef; color: #1e8a4c; font-weight: 600; font-size: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--blue-900); color: #a9c4d3; padding: 64px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.site-footer p { color: #a9c4d3; margin: 0 0 8px; }
.site-footer a { color: #a9c4d3; }
.site-footer a:hover { color: #fff; }
.footer-links li { margin-bottom: 10px; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 12px; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; fill: var(--blue-300); flex: none; margin-top: 4px; }
.footer-bottom { padding: 20px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: #7fa6b8; font-size: 13px; }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--blue-700); color: #fff; border: none; cursor: pointer; display: grid; place-items: center;
  opacity: 0; visibility: hidden; transition: all .3s var(--ease); box-shadow: var(--shadow); z-index: 90; font-size: 18px;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--orange); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cards, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid, .news-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .video-gallery { grid-template-columns: 1fr 1fr; height: auto; }
  .video-card { height: 260px; }
  .video-card--main { grid-column: span 2; height: 330px; }
  .detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .topbar .tb-left { display: none; }
  .topbar .wrap { justify-content: center; }
  .main-nav {
    position: absolute; left: 0; right: 0; top: 84px; background: #fff; border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); box-shadow: var(--shadow);
  }
  .main-nav.open { max-height: 460px; }
  .main-nav ul { flex-direction: column; padding: 10px 16px 18px; gap: 0; }
  .main-nav a { padding: 13px 12px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .main-nav a::after { display: none; }
  .nav-toggle { display: block; }
  .hero { height: 520px; }
  .slide h1 { font-size: 22px; line-height: 1.4; }
  .slide p { font-size: 14px; color: rgba(255,255,255,.9); }
  .slide .eyebrow { font-size: 11px; letter-spacing: 1.5px; }
  .slide .slide-inner { padding: 0 18px; max-width: 100%; }
  .slide h1, .slide p { overflow-wrap: anywhere; }
  .stat { padding: 28px 10px; }
  .stat .num { font-size: 32px; }
  .stats .wrap { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); }
  .stat:last-child { border-bottom: none; }
  section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .page-banner h1 { font-size: 28px; }
  .cards, .why-grid { grid-template-columns: 1fr; }
  .cta .wrap { flex-direction: column; text-align: center; }
  .detail-table th { width: 108px; font-size: 13px; }
  .detail-table td { font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .video-gallery { grid-template-columns: 1fr; gap: 16px; }
  .video-card, .video-card--main { grid-column: span 1; height: 220px; }
  .gallery, .gallery--few { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .detail-copy h2 { font-size: 24px; }
}