/* ==========================================================================
   苏州坤梭仪器科技有限公司 · 官网样式
   浅色高级感 / 简洁大气
   ========================================================================== */

:root {
  --bg: #f7f8fa;
  --bg-2: #eef0f4;
  --panel: #ffffff;
  --panel-solid: #ffffff;
  --line: rgba(20, 34, 60, 0.10);
  --line-2: rgba(20, 34, 60, 0.22);
  --txt: #131c2b;
  --txt-2: #4a5668;
  --txt-3: #8893a5;
  --cy: #0e6fb8;
  --bl: #2451d6;
  --grad: linear-gradient(115deg, #0e6fb8 0%, #2451d6 58%, #4a3bd6 100%);
  --shadow: 0 12px 34px rgba(23, 43, 77, 0.08);
  --shadow-lg: 0 22px 56px rgba(23, 43, 77, 0.12);
  --radius: 16px;
  --maxw: 1180px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 背景光晕与网格 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(14, 111, 184, 0.07), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(36, 81, 214, 0.06), transparent 60%),
    radial-gradient(1000px 700px at 50% 118%, rgba(74, 59, 214, 0.05), transparent 62%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(20, 34, 60, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 34, 60, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
}

main, header, footer { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { width: min(100% - 44px, var(--maxw)); margin: 0 auto; }

/* ------------------------------- 顶部导航 ------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); background: rgba(255, 255, 255, 0.92); box-shadow: 0 4px 20px rgba(23, 43, 77, 0.05); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark-img {
  width: 36px; height: 36px;
  border-radius: 9px;
  object-fit: cover;
  display: block;
  flex: none;
  box-shadow: 0 4px 14px rgba(23, 43, 77, 0.18);
}
.brand-text { line-height: 1.25; }
.brand-name { font-size: 15px; font-weight: 700; letter-spacing: 0.3px; }
.brand-sub { font-size: 11px; color: var(--txt-3); letter-spacing: 1.6px; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--txt-2);
  border-radius: 9px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--txt); background: rgba(14, 111, 184, 0.07); }

.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-phone {
  display: inline-flex; align-items: center; gap: 8px;
  height: 40px; padding: 0 14px;
  border-radius: 10px;
  border: 1px solid rgba(14, 111, 184, 0.24);
  background: rgba(14, 111, 184, 0.05);
  color: var(--cy);
  font-size: 14px; font-weight: 600;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.nav-phone:hover {
  background: rgba(14, 111, 184, 0.10);
  border-color: var(--cy);
  box-shadow: 0 0 0 3px rgba(14, 111, 184, 0.10);
}
.nav-phone svg { width: 15px; height: 15px; fill: currentColor; flex: none; }
.nav-phone b { font-weight: 800; }
.nav-phone-txt { letter-spacing: 0.2px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 20px;
  border-radius: 10px;
  font-size: 14px; font-weight: 600;
  border: 1px solid var(--line-2);
  color: var(--txt);
  background: #ffffff;
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  font-family: inherit;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); border-color: var(--cy); box-shadow: var(--shadow); }
.btn-primary {
  background: var(--grad);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 10px 26px rgba(14, 111, 184, 0.26);
}
.btn-primary:hover { box-shadow: 0 14px 34px rgba(14, 111, 184, 0.34); }
.btn-lg { height: 48px; padding: 0 28px; font-size: 15px; border-radius: 12px; }

/* --------------------------------- Hero -------------------------------- */

.hero { padding: 92px 0 72px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--txt-2);
  letter-spacing: 0.4px;
  background: rgba(14, 111, 184, 0.05);
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cy);
  box-shadow: 0 0 0 4px rgba(14, 111, 184, 0.14);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(14, 111, 184, 0.16); }
  50% { box-shadow: 0 0 0 7px rgba(14, 111, 184, 0.05); }
}

h1.hero-title {
  font-size: clamp(38px, 5.4vw, 62px);
  line-height: 1.1;
  margin: 22px 0 0;
  font-weight: 800;
  letter-spacing: -1.2px;
}
.hero-title .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin: 20px 0 0;
  font-size: 17px;
  color: var(--txt-2);
  max-width: 560px;
}
.hero-sub strong { color: var(--txt); font-weight: 600; }

.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--line);
}
.metric {
  background: rgba(255, 255, 255, 0.92);
  padding: 18px 16px;
}
.metric-num {
  font-size: 23px; font-weight: 800; letter-spacing: -0.5px;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1.25;
}
.metric-label { font-size: 12.5px; color: var(--txt-3); margin-top: 3px; letter-spacing: 0.3px; }

/* Hero 视觉 */
.hero-visual { position: relative; }
.scope {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin-left: auto;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(14, 111, 184, 0.08), transparent 62%),
    rgba(255, 255, 255, 0.7);
}
.scope::before,
.scope::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(14, 111, 184, 0.22);
}
.scope::before { inset: 12%; }
.scope::after { inset: 27%; border-style: solid; border-color: rgba(14, 111, 184, 0.14); }

.scope-sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(14, 111, 184, 0.30), transparent 26%);
  animation: spin 7s linear infinite;
  mask-image: radial-gradient(circle, transparent 33%, #000 34%, #000 100%);
  -webkit-mask-image: radial-gradient(circle, transparent 33%, #000 34%, #000 100%);
}
@keyframes spin { to { transform: rotate(360deg); } }

.scope-core {
  position: relative;
  text-align: center;
  z-index: 2;
}
.scope-core .k { font-size: 40px; font-weight: 800; letter-spacing: -1px; }
.scope-core .k span { color: var(--cy); }
.scope-core .v { font-size: 12.5px; color: var(--txt-3); letter-spacing: 2px; }

.scope-tag {
  position: absolute;
  padding: 6px 12px;
  font-size: 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--txt-2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  white-space: nowrap;
}
.scope-tag.t1 { top: 8%; left: -6%; }
.scope-tag.t2 { top: 46%; right: -8%; }
.scope-tag.t3 { bottom: 7%; left: 8%; }

/* ------------------------------- 通用区块 ------------------------------- */

section { padding: 84px 0; }
section.tight { padding: 62px 0; }

.sec-head { max-width: 720px; margin-bottom: 46px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-label {
  font-size: 12.5px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--cy); font-weight: 600;
}
h2.sec-title {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.24;
  margin: 12px 0 0;
  font-weight: 800;
  letter-spacing: -0.7px;
}
.sec-desc { margin: 14px 0 0; color: var(--txt-2); font-size: 15.5px; }

/* 卡片网格 */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: var(--grad);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover { border-color: var(--line-2); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card:hover::after { opacity: 1; }

.card-ico {
  width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center;
  border: 1px solid var(--line-2);
  background: rgba(14, 111, 184, 0.06);
  margin-bottom: 16px;
}
.card-ico svg { width: 21px; height: 21px; stroke: var(--cy); fill: none; stroke-width: 1.7; }
.card h3 { margin: 0 0 8px; font-size: 16.5px; font-weight: 700; letter-spacing: -0.2px; }
.card p { margin: 0; color: var(--txt-2); font-size: 14.2px; line-height: 1.78; }

/* 参数表 */
.specs {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.spec-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  border-bottom: 1px solid var(--line);
}
.spec-row:last-child { border-bottom: 0; }
.spec-row > div { padding: 15px 24px; font-size: 14.5px; }
.spec-k { color: var(--txt-3); background: rgba(20, 34, 60, 0.03); }
.spec-v { color: var(--txt); }
.spec-v em { font-style: normal; color: var(--cy); font-weight: 600; }

/* 型号对比 */
.models { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.model {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.model.best { border-color: var(--cy); box-shadow: 0 18px 50px rgba(14, 111, 184, 0.12); }
.model h3 { margin: 0; font-size: 22px; font-weight: 800; letter-spacing: -0.4px; }
.model .tag {
  display: inline-block; margin-top: 6px; font-size: 12px; color: var(--cy);
  letter-spacing: 1px;
}
.model ul { list-style: none; padding: 0; margin: 20px 0 0; }
.model li {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 11px 0; border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.model li:last-child { border-bottom: 0; }
.model li span:first-child { color: var(--txt-3); }
.model li span:last-child { color: var(--txt); font-weight: 600; text-align: right; }

/* 对比表 */
.cmp {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14px;
  background: var(--panel);
}
.cmp th, .cmp td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.cmp thead th {
  font-size: 13px; color: var(--txt-2); font-weight: 600;
  background: rgba(20, 34, 60, 0.04);
  white-space: nowrap;
}
.cmp tbody tr:last-child td { border-bottom: 0; }
.cmp td:first-child { color: var(--txt-3); white-space: nowrap; }
.cmp .hl { color: var(--cy); font-weight: 600; }
.cmp tbody tr:hover { background: rgba(14, 111, 184, 0.04); }

/* 场景 */
.scene {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.scene:hover { border-color: var(--line-2); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.scene h4 { margin: 0 0 6px; font-size: 15.5px; font-weight: 700; }
.scene p { margin: 0; font-size: 13.6px; color: var(--txt-2); line-height: 1.7; }
.scene .idx {
  font-size: 12px; color: var(--txt-3); letter-spacing: 1.6px; margin-bottom: 10px;
}

/* 案例视频墙 */
.case-group { margin-bottom: 42px; }
.case-group:last-of-type { margin-bottom: 0; }
.case-group-head {
  display: flex; align-items: baseline; gap: 14px;
  margin-bottom: 18px;
}
.case-group-title {
  margin: 0; font-size: 19px; font-weight: 800; letter-spacing: -0.3px;
}
.case-group-sub { font-size: 13px; color: var(--txt-3); }
.case-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.case-card:hover { border-color: var(--cy); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.case-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid; place-items: center;
  background:
    radial-gradient(circle at 30% 20%, rgba(14, 111, 184, 0.16), transparent 55%),
    radial-gradient(circle at 78% 82%, rgba(74, 59, 214, 0.14), transparent 58%),
    linear-gradient(150deg, #eaf1f8 0%, #dbe6f2 100%);
  border-bottom: 1px solid var(--line);
}
.case-thumb .play {
  width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow);
  transition: background 0.25s, transform 0.25s;
}
.case-card:hover .play { background: #ffffff; transform: scale(1.06); }
.case-thumb .play svg { width: 18px; height: 18px; fill: var(--cy); margin-left: 3px; }
.case-body { padding: 16px 18px 18px; }
.case-body h4 { margin: 0 0 5px; font-size: 15px; font-weight: 700; }
.case-body p { margin: 0; font-size: 13px; color: var(--txt-2); }
.case-badge {
  position: absolute; top: 12px; left: 12px;
  font-size: 11.5px; padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line-2);
  color: var(--txt-2);
  backdrop-filter: blur(4px);
}

/* 视频播放弹窗 */
.video-modal {
  position: fixed; inset: 0; z-index: 200;
  display: none;
  align-items: center; justify-content: center;
  padding: 24px;
}
.video-modal.open { display: flex; }
.video-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(10, 16, 28, 0.72);
  backdrop-filter: blur(6px);
}
.video-modal-body {
  position: relative; z-index: 1;
  width: min(960px, 100%);
  background: #0b101a;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.video-modal-player {
  width: 100%; max-height: 74vh;
  display: block; background: #000;
}
.video-modal-close {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%;
  border: 0; cursor: pointer;
  background: rgba(0, 0, 0, 0.5); color: #fff;
  font-size: 15px; line-height: 1;
  display: grid; place-items: center;
  transition: background 0.2s, transform 0.2s;
}
.video-modal-close:hover { background: rgba(0, 0, 0, 0.75); transform: scale(1.06); }
.video-modal-title {
  padding: 14px 18px;
  color: #d7e0ee; font-size: 14px; font-weight: 600;
}

/* FAQ */
.faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); box-shadow: var(--shadow); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 19px 24px;
  background: transparent; border: 0; cursor: pointer;
  color: var(--txt); font-size: 15.2px; font-weight: 600; text-align: left;
  font-family: inherit;
  transition: background 0.2s;
}
.faq-q:hover { background: rgba(14, 111, 184, 0.04); }
.faq-q .plus {
  flex: 0 0 auto; width: 22px; height: 22px; position: relative;
}
.faq-q .plus::before, .faq-q .plus::after {
  content: ""; position: absolute; background: var(--cyan, var(--cy));
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  transition: transform 0.25s, opacity 0.25s;
}
.faq-q .plus::before { width: 13px; height: 1.6px; }
.faq-q .plus::after { width: 1.6px; height: 13px; }
.faq-item.open .faq-q .plus::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.32s ease;
}
.faq-a-inner { padding: 0 24px 20px; color: var(--txt-2); font-size: 14.3px; line-height: 1.85; }

/* 留言表单 */
.contact {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 44px;
  align-items: start;
}
.form-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 30px;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 16px; }
.field label {
  display: block; font-size: 13px; color: var(--txt-2); margin-bottom: 7px;
}
.field label i { color: var(--cy); font-style: normal; }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fbfcfe;
  color: var(--txt);
  font-size: 14.5px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  outline: none;
}
.field textarea { resize: vertical; min-height: 104px; }
.field input:focus, .field textarea:focus {
  border-color: var(--cy);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(14, 111, 184, 0.12);
}
.form-note { font-size: 12.5px; color: var(--txt-3); margin-top: 14px; }
.form-msg { margin-top: 14px; font-size: 13.5px; min-height: 20px; }
.form-msg.ok { color: #0e8a5f; }
.form-msg.err { color: #d5453f; }

.contact-info { padding-top: 6px; }
.contact-info h2 { margin-top: 0; }
.contact-list { list-style: none; padding: 0; margin: 26px 0 0; }
.contact-list li {
  display: flex; gap: 14px; padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-list .k { color: var(--txt-3); font-size: 13.5px; flex: 0 0 84px; }
.contact-list .v { font-size: 14.5px; }
.contact-list .v a { color: var(--cy); }

.copy-btn {
  margin-left: 8px; font-size: 12px; padding: 2px 9px;
  border-radius: 6px; border: 1px solid var(--line-2);
  background: transparent; color: var(--txt-2); cursor: pointer;
  font-family: inherit; transition: color 0.2s, border-color 0.2s;
}
.copy-btn:hover { color: var(--cy); border-color: var(--cy); }

/* 页脚 */
.footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 34px;
  margin-top: 40px;
  background: #eef1f6;
}
.footer-top {
  display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap;
  padding-bottom: 26px; border-bottom: 1px solid var(--line);
}
.footer-brand { max-width: 340px; }
.footer-brand p { color: var(--txt-3); font-size: 13.5px; margin: 12px 0 0; }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h5 { margin: 0 0 12px; font-size: 13.5px; color: var(--txt); }
.footer-col a, .footer-col p { display: block; color: var(--txt-3); font-size: 13.5px; margin: 0 0 8px; }
.footer-col a:hover { color: var(--cy); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-top: 22px; color: var(--txt-3); font-size: 12.8px;
}

/* 滚动浮现 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ------------------------------- 响应式 ------------------------------- */

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .case-wall { grid-template-columns: repeat(2, 1fr); }
  .contact { grid-template-columns: 1fr; gap: 34px; }
  .nav-links { display: none; }
}

@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  section { padding: 60px 0; }
  .hero { padding: 56px 0 44px; }
  .grid-3, .grid-2, .models, .case-wall { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .spec-row { grid-template-columns: 1fr; }
  .spec-k { padding-bottom: 0; }
  .cmp { font-size: 13px; }
  .cmp th, .cmp td { padding: 11px 12px; }
  .brand-sub { display: none; }
  .footer-cols { gap: 32px; }
  .nav-phone { padding: 0 11px; }
  .nav-phone-txt { display: none; }
  .contact-list .k { flex: 0 0 68px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}