/* ============================================================
   Mingxin Video Technology - static site stylesheet
   Dark tech theme, mobile-first, zero dependencies
   ============================================================ */

:root {
  --bg: #070b16;
  --bg-2: #0b1224;
  --bg-3: #111a30;
  --card: rgba(255, 255, 255, .045);
  --card-2: rgba(255, 255, 255, .07);
  --line: rgba(255, 255, 255, .10);
  --line-2: rgba(255, 255, 255, .18);
  --txt: #e8edf7;
  --txt-2: #a8b3ca;
  --txt-3: #7c88a3;
  --brand: #2ee6ff;
  --brand-2: #7c5cff;
  --accent: #ff7a29;
  --ok: #34d399;
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;
  --shadow: 0 18px 50px -20px rgba(0, 0, 0, .85);
  --shadow-glow: 0 0 0 1px rgba(46, 230, 255, .22), 0 20px 60px -24px rgba(46, 230, 255, .45);
  --wrap: 1200px;
  --pad: 20px;
  --nav-h: 68px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 5.2vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.3rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand); color: #04121a; padding: 10px 16px; border-radius: 0 0 8px 0; font-weight: 700;
}
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad); }
.icon { width: 1.15em; height: 1.15em; flex: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: .25s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(120deg, var(--brand), var(--brand-2)); color: #05101c; box-shadow: 0 10px 30px -12px rgba(46, 230, 255, .8); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -14px rgba(46, 230, 255, .95); }
.btn-ghost { border-color: var(--line-2); color: var(--txt); background: var(--card); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); background: rgba(46, 230, 255, .08); }
.btn-sm { padding: 9px 18px; font-size: .875rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- top bar ---------- */
.topbar { display: none; background: rgba(3, 6, 14, .7); border-bottom: 1px solid var(--line); font-size: .82rem; color: var(--txt-2); }
.topbar-in { display: flex; align-items: center; gap: 20px; height: 38px; }
.tb-item { display: inline-flex; align-items: center; gap: 6px; }
.tb-item a:hover { color: var(--brand); }
.tb-seo { margin-left: auto; color: var(--txt-3); }

/* ---------- header ---------- */
.site-head { position: sticky; top: 0; z-index: 100; background: rgba(7, 11, 22, .82); backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid var(--line); }
.nav-wrap { position: relative; }
.nav-in { display: flex; align-items: center; gap: 14px; min-height: var(--nav-h); }
.brand { flex: none; display: block; }
.brand img { height: 30px; width: auto; }

.nav { position: fixed; inset: 0 0 0 auto; width: min(86vw, 340px); background: var(--bg-2); border-left: 1px solid var(--line); padding: 84px 20px 28px; overflow-y: auto; transform: translateX(100%); transition: transform .3s var(--ease); z-index: 99; }
.nav.is-open { transform: none; }
.nav-list { display: block; }
.nav-item { border-bottom: 1px solid var(--line); }
.nav-item > a { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 15px 4px; font-weight: 600; }
.nav-item > a:hover, .nav-item.is-active > a { color: var(--brand); }
.nav-caret { width: 1em; height: 1em; opacity: .6; transition: transform .25s; }
.nav-item.is-open .nav-caret { transform: rotate(180deg); }
.sub-menu { display: none; padding: 0 0 12px 10px; border-left: 1px solid var(--line-2); margin-left: 4px; }
.nav-item.is-open .sub-menu { display: block; }
.sub-menu a { display: block; padding: 9px 8px; color: var(--txt-2); font-size: .93rem; }
.sub-menu a:hover { color: var(--brand); }

.nav-cta { display: none; }
.nav-toggle { margin-left: auto; width: 42px; height: 42px; display: grid; place-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 12px; cursor: pointer; }
.bars, .bars::before, .bars::after { display: block; width: 18px; height: 2px; background: var(--txt); border-radius: 2px; transition: .25s var(--ease); }
.bars { position: relative; }
.bars::before, .bars::after { content: ""; position: absolute; left: 0; }
.bars::before { top: -6px; } .bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars::after { top: 0; transform: rotate(-45deg); }
.nav-scrim { position: fixed; inset: 0; background: rgba(2, 4, 10, .7); z-index: 98; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 76px 0 68px; overflow: hidden; background: radial-gradient(900px 460px at 12% -5%, rgba(46, 230, 255, .20), transparent 62%), radial-gradient(760px 420px at 92% 12%, rgba(124, 92, 255, .22), transparent 62%), linear-gradient(180deg, var(--bg-2), var(--bg)); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse 90% 70% at 50% 22%, #000 30%, transparent 78%); -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 22%, #000 30%, transparent 78%); pointer-events: none; }
.hero-in { position: relative; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px; border: 1px solid var(--line-2); border-radius: 999px; background: var(--card); color: var(--brand); font-size: .82rem; font-weight: 600; margin-bottom: 20px; }
.hero h1 { margin-bottom: 14px; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--brand), var(--brand-2) 60%, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: clamp(1rem, 2.2vw, 1.18rem); color: var(--txt-2); max-width: 62ch; margin-bottom: 28px; }
.hero .btn-row { margin-bottom: 44px; }
.hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.stat { padding: 18px 16px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); backdrop-filter: blur(6px); }
.stat b { display: block; font-size: clamp(1.6rem, 4vw, 2.3rem); line-height: 1.1; background: linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: .84rem; color: var(--txt-3); }

/* ---------- sections ---------- */
.sec { padding: 64px 0; }
.sec-alt { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, .022), transparent); }
.sec-head { margin-bottom: 34px; max-width: 60ch; }
.sec-head.is-center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head h2 { margin-bottom: 8px; }
.sec-sub { color: var(--txt-2); margin: 0; }

.card-grid { display: grid; gap: 14px; }
.card { position: relative; display: block; padding: 22px 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); transition: .28s var(--ease); overflow: hidden; }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(420px 180px at 100% 0%, rgba(46, 230, 255, .16), transparent 70%); opacity: 0; transition: opacity .28s; }
.card:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--card-2); box-shadow: var(--shadow); }
.card:hover::after { opacity: 1; }
.card-ico { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; background: linear-gradient(140deg, rgba(46, 230, 255, .18), rgba(124, 92, 255, .18)); border: 1px solid var(--line-2); color: var(--brand); margin-bottom: 14px; }
.card-ico .icon { width: 22px; height: 22px; }
.card h3 { margin-bottom: 6px; font-size: 1.08rem; }
.card p { margin: 0; font-size: .9rem; color: var(--txt-2); }
.card-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; font-size: .85rem; font-weight: 600; color: var(--brand); }
.card:hover .card-more .icon { transform: translateX(3px); }
.card-more .icon { transition: transform .25s; width: 1em; height: 1em; }

/* ---------- feature / spec / tag ---------- */
.feature-grid { display: grid; gap: 14px; }
.feature-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); }
.feature-card h3 { font-size: 1.02rem; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.feature-card h3::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); flex: none; }
.feature-card p { margin: 0; font-size: .9rem; color: var(--txt-2); }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li { padding: 6px 13px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); font-size: .84rem; color: var(--txt-2); }

.spec-list { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.spec-list li { display: flex; gap: 16px; padding: 13px 18px; border-bottom: 1px solid var(--line); font-size: .92rem; }
.spec-list li:last-child { border-bottom: 0; }
.spec-k { flex: none; width: 34%; color: var(--txt-3); }
.spec-v { color: var(--txt); }

/* ---------- data table (model list) ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 560px; }
.data-table th, .data-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table thead th { background: var(--card-2); font-size: .82rem; color: var(--txt-3); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.data-table tbody tr:last-child th, .data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: var(--card); }
.data-table tbody th { font-weight: 700; color: var(--brand); white-space: nowrap; }
.data-table td { color: var(--txt-2); }
.data-table a { color: var(--brand); font-weight: 600; white-space: nowrap; }
.muted { color: var(--txt-3); }

/* ---------- model spec accordion ---------- */
.model-specs { display: grid; gap: 10px; }
.model-spec { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--card); overflow: hidden; }
.model-spec > summary { cursor: pointer; list-style: none; padding: 15px 18px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; font-weight: 700; }
.model-spec > summary::-webkit-details-marker { display: none; }
.model-spec > summary::after { content: "+"; margin-left: auto; font-size: 1.3rem; font-weight: 400; color: var(--brand); transition: transform .2s; }
.model-spec[open] > summary::after { transform: rotate(45deg); }
.model-spec > summary span { font-weight: 400; font-size: .88rem; color: var(--txt-3); }
.model-spec-in { padding: 0 18px 18px; }
.model-desc { color: var(--txt-2); font-size: .92rem; margin-bottom: 12px; }

/* ---------- download card ---------- */
.dl-row { display: grid; gap: 12px; }
.dl-card { display: flex; align-items: center; gap: 14px; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); transition: .25s var(--ease); }
.dl-card:hover { border-color: var(--brand); background: var(--card-2); transform: translateY(-2px); }
.dl-card .icon { width: 26px; height: 26px; color: var(--brand); flex: none; }
.dl-card b { display: block; font-size: 1rem; }
.dl-card i { font-style: normal; font-size: .84rem; color: var(--txt-3); }

/* ---------- media slots (project photos / case video) ---------- */
.sec-media { padding-top: 0; }
.sec-lead { padding: 30px 0 0; }
.media-grid { display: grid; gap: 14px; }
.media-grid-lead { grid-template-columns: 1fr; }
.shot { margin: 0; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--bg-3); }
.shot img, .shot video { display: block; width: 100%; height: auto; }
.shot img { aspect-ratio: 16 / 10; object-fit: cover; }
.shot.ratio-21 img { aspect-ratio: 21 / 9; }
.shot.ratio-1 img { aspect-ratio: 1 / 1; }
.shot figcaption { padding: 11px 14px; font-size: .84rem; color: var(--txt-3); border-top: 1px solid var(--line); background: var(--card); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.shot-note { margin-left: auto; padding: 2px 9px; border: 1px solid var(--line-2); border-radius: 999px; font-size: .74rem; color: var(--txt-3); white-space: nowrap; }
.shot-video { position: relative; }
.shot-video video { background: #000; }

/* hero background media */
.hero-bg { position: absolute; inset: 0; overflow: hidden; z-index: 0; }
.hero-bg video, .hero-bg-img { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-bg video { object-fit: cover; }
.hero-bg-img { background-size: cover; background-position: center; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(7, 11, 22, .94) 0%, rgba(7, 11, 22, .82) 42%, rgba(7, 11, 22, .55) 100%); }
.hero-bg + .hero-in { position: relative; z-index: 1; }

/* ---------- case cards ---------- */
.case-grid { display: grid; gap: 18px; }
.case-card { display: grid; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--card); transition: .28s var(--ease); }
.case-card:hover { border-color: var(--line-2); box-shadow: var(--shadow); }
.case-media { background: var(--bg-3); }
.case-media img, .case-media video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-body { padding: 18px 20px 20px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 10px; }
.case-tags span { padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: .76rem; color: var(--txt-3); }
.case-body h3 { margin-bottom: 6px; font-size: 1.12rem; }
.case-sum { margin: 0; font-size: .9rem; color: var(--txt-2); }
.case-specs { margin-top: 14px; border-top: 1px solid var(--line); }
.case-specs li { display: flex; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: .86rem; }
.case-specs li:last-child { border-bottom: 0; }
.case-specs b { flex: none; width: 30%; color: var(--txt-3); font-weight: 500; }
.case-specs span { color: var(--txt); }

@media (min-width: 720px) {
  .media-grid { grid-template-columns: repeat(2, 1fr); }
  .media-grid-lead { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .case-card { grid-template-rows: auto 1fr; }
}
@media (min-width: 1000px) {
  .media-grid { grid-template-columns: repeat(3, 1fr); }
  .media-grid-lead .shot:first-child:last-child { grid-column: 1 / -1; }
  .media-grid-lead .shot:first-child:last-child img { aspect-ratio: 21 / 9; }
}

/* ---------- steps ---------- */
.steps { display: grid; gap: 14px; counter-reset: st; }
.step { position: relative; padding: 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--card); }
.step b { display: inline-block; font-size: 1.6rem; line-height: 1; font-weight: 800; background: linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 8px; }
.step h3 { font-size: 1.02rem; margin-bottom: 4px; }
.step p { margin: 0; font-size: .9rem; color: var(--txt-2); }

/* ---------- faq ---------- */
.faq { display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--card); overflow: hidden; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 46px 16px 18px; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 1.3rem; font-weight: 400; color: var(--brand); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0; padding: 0 18px 18px; color: var(--txt-2); font-size: .93rem; }

/* ---------- page head (inner pages) ---------- */
.phead {
  --tone: 46 230 255;
  position: relative;
  padding: 44px 0 40px;
  overflow: hidden;
  background:
    radial-gradient(760px 340px at 6% 0%, rgb(var(--tone) / .22), transparent 62%),
    radial-gradient(620px 320px at 96% 8%, rgba(124, 92, 255, .18), transparent 62%),
    linear-gradient(180deg, rgba(7, 11, 22, .82) 0%, rgba(9, 14, 28, .92) 100%),
    url('/img/hero-bg.jpg') center 42% / cover no-repeat,
    var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.phead[data-tone="violet"] { --tone: 140 120 255; }
.phead[data-tone="amber"]  { --tone: 255 150 60; }
.phead[data-tone="green"]  { --tone: 60 210 170; }
.phead[data-tone="rose"]   { --tone: 255 110 150; }
.phead-head { display: flex; align-items: center; gap: 16px; margin-bottom: 10px; }
.phead h1 { margin: 0; font-size: clamp(1.6rem, 4vw, 2.5rem); }
.phead-ico { width: 54px; height: 54px; flex: none; display: grid; place-items: center; border-radius: 15px; background: linear-gradient(140deg, rgb(var(--tone) / .22), rgba(124, 92, 255, .18)); border: 1px solid var(--line-2); color: rgb(var(--tone)); }
.phead-ico .icon { width: 26px; height: 26px; }

/* ---------- gallery / certificate cards ---------- */
.feature-card > img { width: 100%; border-radius: var(--r-sm); margin-bottom: 14px; background: #0e1626; border: 1px solid var(--line); }
.feature-card > img[src$="poster.jpg"] { max-width: 240px; margin-left: auto; margin-right: auto; }
.feature-card > img[src$="photo-1.jpg"] { aspect-ratio: 4 / 3; object-fit: cover; }
.feature-card h3 { margin-top: 0; }

/* ---------- prose / cta ---------- */
.prose { max-width: 76ch; color: var(--txt-2); }
.prose h2, .prose h3 { color: var(--txt); margin-top: 1.6em; }
.prose strong { color: var(--txt); }
.prose ul { list-style: none; padding-left: 0; margin: 0 0 1em; }
.prose ul li { position: relative; padding-left: 22px; margin-bottom: 8px; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .72em; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }

.cta { position: relative; padding: 46px 0; overflow: hidden; background: radial-gradient(700px 340px at 20% 0%, rgba(46, 230, 255, .18), transparent 62%), radial-gradient(560px 300px at 88% 100%, rgba(255, 122, 41, .16), transparent 62%), var(--bg-3); border-top: 1px solid var(--line); }
.cta-in { display: grid; gap: 24px; }
.cta h2 { margin-bottom: 8px; }
.cta p { color: var(--txt-2); margin: 0; }
.cta-contacts { display: grid; gap: 10px; }
.cta-contacts a { display: inline-flex; align-items: center; gap: 10px; padding: 13px 18px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--card); font-weight: 600; transition: .25s var(--ease); }
.cta-contacts a:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- footer ---------- */
.site-foot { background: var(--bg-2); border-top: 1px solid var(--line); padding-top: 46px; }
.foot-grid { display: grid; gap: 30px; padding-bottom: 34px; }
.foot-col h3 { font-size: .95rem; margin-bottom: 14px; }
.foot-links li, .foot-contact li { margin-bottom: 9px; font-size: .89rem; color: var(--txt-2); }
.foot-links a:hover, .foot-contact a:hover { color: var(--brand); }
.foot-contact li { display: flex; gap: 9px; align-items: flex-start; }
.foot-contact .icon { margin-top: .35em; color: var(--brand); }
.foot-brand img { height: 32px; width: auto; margin-bottom: 14px; }
.foot-desc { font-size: .87rem; color: var(--txt-3); }
.foot-hot { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--brand); margin: 0; }
.foot-bar { border-top: 1px solid var(--line); padding: 16px 0; font-size: .82rem; color: var(--txt-3); }
.foot-bar-in { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
.foot-bar p { margin: 0; }
.foot-bar a:hover { color: var(--brand); }

/* ---------- mobile action bar ---------- */
.mobile-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom); }
.mobile-bar a { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 8px; font-weight: 700; font-size: .92rem; background: var(--bg-2); }
.mb-call { color: var(--brand); }
.mb-consult { background: linear-gradient(120deg, var(--brand), var(--brand-2)); color: #05101c; }
body { padding-bottom: 56px; }
@media (min-width: 560px) {
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-contacts { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  :root { --pad: 28px; --nav-h: 84px; }
  .topbar { display: block; }
  .nav { position: static; width: auto; background: none; border: 0; padding: 0; transform: none; display: flex; align-items: center; margin-left: auto; overflow: visible; }
  .nav-list { display: flex; align-items: center; gap: 4px; }
  .nav-item { border: 0; position: relative; }
  .nav-item > a { padding: 10px 12px; font-size: .93rem; font-weight: 600; }
  .nav-caret { display: none; }
  .sub-menu { position: absolute; top: 100%; left: 0; min-width: 190px; padding: 8px; margin: 0; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg-3); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .22s var(--ease); display: block; }
  .nav-item:hover .sub-menu, .nav-item:focus-within .sub-menu { opacity: 1; visibility: visible; transform: none; }
  .sub-menu a { padding: 9px 12px; border-radius: 8px; }
  .sub-menu a:hover { background: rgba(46, 230, 255, .1); }
  .nav-toggle, .nav-scrim { display: none; }
  .nav-cta { display: inline-flex; }
  .brand img { height: 44px; }
  .nav-in { gap: 18px; }
  .sec { padding: 84px 0; }
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .faq { grid-template-columns: repeat(2, 1fr); }
  .cta-in { grid-template-columns: 1.4fr 1fr; align-items: center; }
  .cta { padding: 64px 0; }
  .foot-grid { grid-template-columns: 1.6fr 1fr 1fr 1.3fr; }
  .phead { padding: 60px 0 52px; }
  .nav-in { gap: 18px; }
}

@media (min-width: 1100px) {
  .card-grid { grid-template-columns: repeat(4, 1fr); }
  .feature-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- motion & a11y ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

.hero-badge, .hero h1, .hero-sub, .hero .btn-row, .hero-stats { animation: heroUp .8s var(--ease) both; }
.hero h1 { animation-delay: .08s; }
.hero-sub { animation-delay: .16s; }
.hero .btn-row { animation-delay: .24s; }
.hero-stats { animation-delay: .32s; }
@keyframes heroUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-head, .site-foot, .mobile-bar, .nav-scrim, .cta { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  .card, .feature-card, .step { border-color: #ccc; background: #fff; }
}