/* ============================================================
   东莞市美彦环保科技有限公司 - 企业官网全局样式
   MEIYAN Environmental Tech — Global Stylesheet
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  --primary: #0b6e4f;          /* 主色：深绿 */
  --primary-dark: #07523b;
  --primary-light: #e8f5ef;
  --accent: #14b8a6;           /* 强调：青色 */
  --accent-dark: #0d9488;
  --ink: #14211c;              /* 正文主色 */
  --ink-soft: #4a5a53;         /* 次要文字 */
  --ink-faint: #7d8d86;        /* 弱化文字 */
  --line: #e3ebe7;             /* 分割线 */
  --bg: #ffffff;
  --bg-soft: #f4f8f6;          /* 浅色块背景 */
  --bg-deep: #0c2b22;          /* 深色块背景 */
  --gradient: linear-gradient(135deg, #0b6e4f 0%, #0d9488 100%);
  --shadow-sm: 0 2px 8px rgba(11, 110, 79, .08);
  --shadow-md: 0 10px 30px rgba(11, 110, 79, .12);
  --shadow-lg: 0 20px 50px rgba(11, 110, 79, .16);
  --radius: 14px;
  --radius-lg: 20px;
  --container: 1160px;
  --header-h: 74px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
          "Noto Sans SC", "Source Han Sans SC", "Segoe UI", sans-serif;
}

/* ---------- Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); }
.section--deep { background: var(--bg-deep); color: #eaf5f0; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head .eyebrow::before,
.section-head .eyebrow::after {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  opacity: .6;
}

.section-head h2 { font-size: 36px; color: var(--ink); }

.section-head p { margin-top: 14px; color: var(--ink-soft); font-size: 17px; }

.section--deep .section-head h2 { color: #fff; }
.section--deep .section-head p { color: rgba(234, 245, 240, .75); }
.section--deep .section-head .eyebrow { color: #7ee0cf; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  font-family: var(--font);
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--ghost:hover { background: var(--primary); color: #fff; }

.btn--light {
  background: #fff;
  color: var(--primary-dark);
}
.btn--light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .7);
}
.btn--ghost-light:hover { background: rgba(255, 255, 255, .12); }

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: box-shadow .3s, border-color .3s;
}

.header.scrolled {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  color: #fff;
  flex-shrink: 0;
}

.logo-mark svg { width: 24px; height: 24px; }

.logo-text { line-height: 1.2; }

.logo-text strong {
  display: block;
  font-size: 17px;
  letter-spacing: .06em;
  color: var(--ink);
}

.logo-text span {
  display: block;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.nav { display: flex; gap: 6px; }

.nav a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15.5px;
  color: var(--ink-soft);
  font-weight: 500;
}
.nav a:hover { color: var(--primary); background: var(--primary-light); }
.nav a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }

.header-cta { flex-shrink: 0; }
.header-cta .btn { padding: 10px 22px; font-size: 15px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 40px;
  overflow: hidden;
  background:
    radial-gradient(60% 90% at 85% 10%, rgba(20, 184, 166, .16), transparent 60%),
    radial-gradient(50% 80% at 8% 90%, rgba(11, 110, 79, .14), transparent 60%),
    linear-gradient(180deg, #f2faf6 0%, #ffffff 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 48px;
  min-height: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 22px;
}

.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(20, 184, 166, .5); }
  50% { box-shadow: 0 0 0 6px rgba(20, 184, 166, 0); }
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: .01em;
  margin-bottom: 18px;
}

.hero h1 .grad {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero p.lead {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: 30px;
}

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

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}
.hero-tags li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: var(--ink-soft);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
}
.hero-tags li::before {
  content: "✓";
  color: var(--accent-dark);
  font-weight: 700;
}

.hero-visual { position: relative; }

.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 18px;
  position: relative;
}

.hero-card img { border-radius: 12px; width: 100%; height: auto; }

.float-chip {
  position: absolute;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
.float-chip small { display: block; font-size: 12px; color: var(--ink-faint); font-weight: 400; }

.chip--fog {
  top: 12%; left: -28px;
  animation: floaty 5s ease-in-out infinite;
}
.chip--mosq {
  bottom: 10%; right: -22px;
  animation: floaty 6s ease-in-out infinite .8s;
}

.chip-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--primary-light);
  color: var(--primary);
  flex-shrink: 0;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- Stats band ---------- */
.stats {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
  text-align: center;
}
.stat h3 {
  font-size: 38px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat h3 em { font-style: normal; font-size: 22px; }
.stat p { margin-top: 4px; color: var(--ink-faint); font-size: 14px; letter-spacing: .05em; }

/* ---------- Cards / Grids ---------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

/* ---------- Products section ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }

.product-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .35s, box-shadow .35s;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-card .media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.product-card .media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .media img { transform: scale(1.05); }

.product-card .body { padding: 28px 30px 32px; }

.product-card .tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--accent-dark);
  background: var(--primary-light);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
}

.product-card h3 { font-size: 24px; margin-bottom: 10px; }
.product-card .body > p { color: var(--ink-soft); margin-bottom: 16px; }

.product-card .feats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin-bottom: 22px;
}
.product-card .feats li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.product-card .feats li::before {
  content: "✓";
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 13px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
}
.link-more:hover { gap: 10px; color: var(--accent-dark); }

/* ---------- Feature list ---------- */
.feature {
  padding: 30px 26px;
}
.feature .icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.feature h3 { font-size: 19px; margin-bottom: 8px; }
.feature p { font-size: 15px; color: var(--ink-soft); }

/* ---------- Scene cards ---------- */
.scene { position: relative; }
.scene .media { aspect-ratio: 4 / 3; overflow: hidden; position: relative; }
.scene .media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.scene:hover .media img { transform: scale(1.06); }
.scene .body { padding: 20px 22px 24px; }
.scene .body h3 { font-size: 18px; margin-bottom: 6px; }
.scene .body p { font-size: 14.5px; color: var(--ink-soft); }

/* ---------- About intro ---------- */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-split .visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-split .visual img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 5 / 4; }

.about-split h2 { font-size: 34px; margin-bottom: 18px; }
.about-split h2 .grad {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.about-split p { color: var(--ink-soft); margin-bottom: 14px; }

.about-list { margin: 18px 0 26px; display: grid; gap: 12px; }
.about-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.about-list .li-icon {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-top: 3px;
}
.about-list strong { display: block; font-size: 15.5px; }
.about-list span { font-size: 14px; color: var(--ink-faint); }

/* ---------- Timeline (development) ---------- */
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--primary));
  transform: translateX(-50%);
  opacity: .35;
}
.tl-item {
  position: relative;
  width: 50%;
  padding: 0 40px 44px;
}
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }

.tl-dot {
  position: absolute;
  top: 4px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px var(--primary-light);
}
.tl-item:nth-child(odd) .tl-dot { right: -7px; }
.tl-item:nth-child(even) .tl-dot { left: -7px; }

.tl-item h3 { font-size: 17px; margin-bottom: 4px; }
.tl-item .year {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-dark);
  background: var(--primary-light);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.tl-item p { font-size: 14.5px; color: var(--ink-soft); }

/* ---------- Steps (process) ---------- */
.steps { counter-reset: step; }
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px;
  counter-increment: step;
}
.step::before {
  content: "0" counter(step);
  font-size: 32px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: block;
  margin-bottom: 12px;
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--ink-soft); }

/* ---------- Process / detail pages ---------- */
.page-hero {
  background:
    radial-gradient(55% 80% at 90% 0%, rgba(20, 184, 166, .18), transparent 55%),
    linear-gradient(180deg, #eef8f3 0%, #f9fcfa 100%);
  padding-top: calc(var(--header-h) + 56px);
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: 40px; margin-bottom: 12px; }
.page-hero .crumbs { font-size: 14px; color: var(--ink-faint); margin-bottom: 16px; }
.page-hero .crumbs a:hover { color: var(--primary); }
.page-hero p { color: var(--ink-soft); max-width: 640px; font-size: 17px; }

/* ---------- Table ---------- */
.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table th, .spec-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.spec-table th {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
  width: 30%;
}
.spec-table tr:hover td { background: #fafdfb; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: start;
}

.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 32px;
  box-shadow: var(--shadow-sm);
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}
.contact-item:last-child { border-bottom: none; }
.contact-item .c-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
}
.contact-item h4 { font-size: 15.5px; margin-bottom: 3px; }
.contact-item p { color: var(--ink-soft); font-size: 14.5px; }

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--ink);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  transition: border-color .25s, box-shadow .25s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, .12);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-note {
  font-size: 13px;
  color: var(--ink-faint);
  margin-top: 12px;
}

.form-ok {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 14.5px;
  font-weight: 600;
}
.form-ok.show { display: block; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(70% 120% at 85% 20%, rgba(20, 184, 166, .25), transparent 55%),
    var(--gradient);
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
}
.cta-band h2 { font-size: 30px; margin-bottom: 8px; }
.cta-band p { color: rgba(255, 255, 255, .85); }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- News ---------- */
.news-card .media { aspect-ratio: 16 / 9; overflow: hidden; }
.news-card .media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .media img { transform: scale(1.06); }
.news-card .body { padding: 22px 24px 26px; }
.news-card .date {
  font-size: 13px;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
.news-card h3 { font-size: 17px; margin-bottom: 8px; line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-deep);
  color: rgba(234, 245, 240, .8);
  margin-top: 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 64px 0 48px;
}

.footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  letter-spacing: .05em;
}

.footer .logo-text strong { color: #fff; }
.footer .logo-text span { color: rgba(234, 245, 240, .5); }

.footer-about p { font-size: 14px; margin-top: 16px; max-width: 300px; color: rgba(234, 245, 240, .65); }

.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14.5px; color: rgba(234, 245, 240, .72); }
.footer-links a:hover { color: #7ee0cf; padding-left: 4px; }

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  margin-bottom: 12px;
  color: rgba(234, 245, 240, .72);
}
.footer-contact li svg { flex-shrink: 0; margin-top: 3px; color: #7ee0cf; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(234, 245, 240, .5);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 42px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .about-split { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 18px 24px 26px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    gap: 4px;
  }
  .nav.open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .nav a { padding: 12px 16px; font-size: 16px; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }

  .hero-inner { grid-template-columns: 1fr; gap: 40px; min-height: 0; }
  .hero h1 { font-size: 36px; }
  .chip--fog { left: 4px; }
  .chip--mosq { right: 4px; }

  .product-grid { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
  .timeline::before { left: 8px; }
  .tl-item { width: 100%; left: 0 !important; text-align: left !important; padding: 0 0 36px 36px; }
  .tl-item:nth-child(odd) .tl-dot,
  .tl-item:nth-child(even) .tl-dot { left: 1px; right: auto; }
  .cta-band { padding: 40px 28px; }
}

@media (max-width: 560px) {
  .grid--4 { grid-template-columns: 1fr 1fr; }
  .product-card .feats { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}