:root {
  --primary: #006699;
  --secondary: #66CC00;
  --bg: #ffffff;
  --bg-alt: #f8fafb;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --border: rgba(0, 102, 153, 0.12);
  --radius: 16px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
.main { min-height: 70vh; padding-top: 56px; }

/* Header - 对齐线上 */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: #fff; box-shadow: 0 1px 0 rgba(0,0,0,.06);
}
.nav-bar {
  width: 100%; padding: 0 24px;
  min-height: 48px; display: grid; grid-template-columns: auto 1fr auto;
  align-items: center; gap: 16px;
}
.logo { display: flex; align-items: center; }
.logo img { height: 36px; width: auto; max-width: none; }
.nav-center {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: nowrap; gap: 2px; min-width: 0;
}
.nav-item { position: relative; flex: 0 0 auto; }
.nav-link {
  display: inline-flex; align-items: center; gap: 4px;
  height: 34px; padding: 0 12px; border-radius: 10px;
  font-size: 14px; font-weight: 500; color: var(--text);
  white-space: nowrap; flex-shrink: 0; line-height: 1;
}
.nav-link:hover { background: #f0f4f8; color: var(--primary); }
.nav-link.active, .nav-item.is-open > .nav-link {
  background: var(--primary); color: #fff !important;
}
.nav-caret { opacity: .7; transition: transform .2s; }
.nav-item.is-open .nav-caret { transform: rotate(180deg); }
.nav-divider { width: 1px; height: 16px; background: #d2d2d7; margin: 0 8px; flex: 0 0 auto; }
.nav-right { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.lang-switch { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.lang-switch a { color: var(--muted); padding: 4px 6px; border-radius: 6px; }
.lang-switch a.on { color: var(--primary); font-weight: 600; background: rgba(0,102,153,.1); }
.lang-switch span { color: #d2d2d7; }
.nav-toggle {
  display: none; border: 0; background: transparent; cursor: pointer;
  width: 40px; height: 40px; border-radius: 10px; color: var(--text);
  align-items: center; justify-content: center; padding: 0;
}
.nav-toggle:hover { background: #f0f4f8; }

/* 手机侧滑菜单（对齐线上：fixed 顶到底） */
.mobile-nav-backdrop,
.mobile-drawer { display: none; }
@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.mega {
  display: none; position: absolute; left: 0; right: 0; top: 100%;
  background: #fff; border-top: 1px solid rgba(0,102,153,.1);
  box-shadow: 0 8px 32px rgba(0,102,153,.06); z-index: 60;
}
.mega.is-open { display: block; }
.mega-inner {
  max-width: 980px; margin: 0 auto; padding: 32px 48px;
  display: flex; gap: 64px;
}
.mega-col { min-width: 160px; }
.mega-label {
  margin: 0 0 14px; font-size: 12px; font-weight: 500;
  color: var(--muted); text-transform: uppercase; letter-spacing: .06em;
}
.mega-col a {
  display: block; padding: 4px 0; font-size: 14px; color: var(--text);
}
.mega-col a:hover { color: var(--primary); }
.mega-strong { font-size: 17px !important; font-weight: 600; margin-bottom: 6px; }

.btn-white { background: #fff; color: var(--primary); font-weight: 600; }
.btn-white:hover { background: rgba(255,255,255,.9); color: var(--primary); }
.btn-sm { padding: 10px 14px; font-size: 14px; min-height: 44px; flex: 1; }
.more-link { display: inline-block; margin-top: 10px; color: var(--primary); font-size: 14px; font-weight: 500; }
.cat-tag { color: var(--primary) !important; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 8px; }
.muted { color: var(--muted); }
.product-card { display: flex; flex-direction: column; }
.product-card .card-media { display: block; flex: 1; color: inherit; }
.product-card .card-media:hover { color: inherit; }
.card-actions { display: flex; gap: 10px; padding: 0 18px 18px; }
.page-hero-soft { padding: 72px 16px 28px; }
.page-hero-soft .hero-desc {
  margin: 0 auto; max-width: 640px; text-align: center;
  color: var(--muted); font-size: clamp(16px, 2.2vw, 22px);
}
.page-hero-soft h1 { display: none; }

.btn-white { background: #fff; color: var(--primary); font-weight: 600; }
.btn-white:hover { background: rgba(255,255,255,.9); color: var(--primary); }
.more-link { display: inline-block; margin-top: 10px; color: var(--primary); font-size: 14px; font-weight: 500; }
.cat-tag { color: var(--primary) !important; font-size: 13px; margin: 0 0 4px; }
.muted { color: var(--muted); }

.about-home {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.about-home h2 { font-size: clamp(26px, 3vw, 36px); margin: 0 0 16px; }
.about-home p { color: var(--muted); font-size: 18px; line-height: 1.7; margin: 0 0 24px; }
.about-home-media {
  aspect-ratio: 1; border-radius: 20px; overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,.08); background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
}
.about-home-media img { width: 100%; height: 100%; object-fit: contain; }

.section.products-band {
  position: relative;
  overflow: hidden;
  padding: 64px 0;
  isolation: isolate; /* 独立层叠，避免遮罩被盖住 */
}
@media (min-width: 768px) {
  .section.products-band { padding: 96px 0; }
}
/* 底图 + 蒙层（对齐线上 bg-white/92） */
.products-band-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #f3f3f3 url('/images/products-bg.jpg') center / cover no-repeat;
  pointer-events: none;
}
.products-band-mask {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
}
.products-band-content {
  position: relative;
  z-index: 1;
}
.products-band-grid { margin-top: 36px; }
.products-band-cta { text-align: center; margin-top: 40px; }
.products-band h2 { text-align: center; margin: 0; color: #1d1d1f; }
.products-band .card {
  background: #fff;
  opacity: 1;
  position: relative;
  z-index: 1;
}

.brand-banner {
  position: relative; min-height: 280px; display: flex; align-items: center; justify-content: center;
  text-align: center; color: #fff; overflow: hidden; padding: 64px 16px;
}
.brand-banner-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(0,102,153,.85), rgba(0,102,153,.85)),
    url('https://images.pexels.com/photos/8542744/pexels-photo-8542744.jpeg?auto=compress&cs=tinysrgb&w=1920') center/cover;
}
.brand-banner-inner { position: relative; z-index: 1; max-width: 680px; }
.brand-banner h2 { margin: 0 0 16px; font-size: clamp(24px, 3vw, 36px); color: #fff; }
.brand-banner p { margin: 0; font-size: clamp(16px, 2vw, 20px); color: rgba(255,255,255,.95); line-height: 1.6; }

.text-center { text-align: center; }


/* Hero */
.hero {
  position: relative; min-height: 78vh; display: flex; align-items: flex-end; justify-content: center;
  text-align: center; color: #fff; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: blur(2px); transform: scale(1.05); }
.hero-mask { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.8), rgba(0,0,0,.35), rgba(0,0,0,.15)); }
.hero-content { position: relative; z-index: 1; padding: 96px 16px 72px; max-width: 800px; }
.hero h1 { margin: 0 0 12px; font-size: clamp(28px, 5vw, 48px); font-weight: 600; }
.hero p { margin: 0 0 24px; font-size: clamp(16px, 2.5vw, 22px); opacity: .92; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 999px; font-size: 15px; font-weight: 500;
  border: 0; cursor: pointer; transition: .2s; min-height: 44px; touch-action: manipulation;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #0077b3; color: #fff; }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.35); }
.btn-ghost:hover { background: rgba(255,255,255,.25); color: #fff; }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

/* Sections */
.section { padding: 48px 0; }
.section.alt { background: var(--bg-alt); }
.section h2 { margin: 0 0 8px; font-size: clamp(22px, 3vw, 32px); }
.section .sub { color: var(--muted); margin: 0 0 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; align-items: center; }

.card {
  background: #fff; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--border); transition: .25s; display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-img {
  aspect-ratio: 4 / 3;
  background: #f8fafb;
  position: relative;
  overflow: hidden;
}
.card-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  object-position: center;
  padding: 16px;
  box-sizing: border-box;
}
.card-body { padding: 16px 18px 20px; }
.card-body h3 { margin: 0 0 6px; font-size: 16px; }
.card-body p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.value {
  background: #fff; border-radius: 16px; padding: 24px 16px; text-align: center;
  border: 1px solid var(--border);
}
.value strong { display: block; color: var(--primary); font-size: 20px; margin-bottom: 6px; }

/* Products filter */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tab {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border);
  background: #fff; color: var(--muted); font-size: 14px;
}
.tab.active, .tab:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.page-hero { padding: 72px 16px 40px; text-align: center; background: linear-gradient(#f8fafb, #fff); }
.page-hero h1 { margin: 0 0 12px; font-size: clamp(28px, 5vw, 48px); }
.page-hero p { margin: 0 auto; max-width: 640px; color: var(--muted); font-size: 18px; }

/* 关于页：对齐线上径向渐变氛围 */
.about-page {
  background-color: #f8fafb;
  background-image:
    radial-gradient(ellipse at top, rgba(0, 102, 153, 0.12), transparent 55%),
    radial-gradient(ellipse at bottom, rgba(102, 204, 0, 0.10), transparent 55%),
    linear-gradient(to bottom, #f8fafb, #ffffff 55%, #f8fafb);
  min-height: 60vh;
}
.about-page .about-hero {
  background: linear-gradient(to bottom, #ffffff, #f8fafb);
  padding: 88px 16px 64px;
  text-align: center;
}
.about-page .about-eyebrow {
  color: var(--primary);
  letter-spacing: 0.2em;
  font-weight: 600;
  margin: 0 auto 20px;
  max-width: none;
  width: 100%;
  font-size: 14px;
  text-transform: uppercase;
  text-align: center;
  /* letter-spacing 会让居中文字视觉偏左，用同等内边距补偿 */
  padding-left: 0.2em;
}
.about-page .about-hero h1 {
  font-size: clamp(36px, 7vw, 64px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}
.about-page .about-hero > p:last-child {
  margin-top: 28px;
  font-size: clamp(17px, 2.2vw, 22px);
  max-width: 680px;
  line-height: 1.6;
}
.about-page .about-block {
  background: transparent;
  padding: 24px 0;
}
.about-page .wrap-narrow { max-width: 900px; }
.about-label {
  color: var(--primary);
  font-size: 16px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  margin: 0 0 20px;
}
.about-label.center { text-align: center; margin-bottom: 36px; }
.about-label.story { color: var(--secondary); }
.about-lead {
  font-size: clamp(18px, 2vw, 26px);
  line-height: 1.75;
  font-weight: 300;
  margin: 0;
  color: var(--text);
}
.about-intro-panel { align-items: center; }
.about-logo-slot {
  min-height: 200px;
  border-radius: 16px;
  background: #f8fafb;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-logo-slot span {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: rgba(0, 102, 153, 0.3);
  font-weight: 300;
}
.about-page .about-stat {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: #fff;
}
.about-page .about-stat .item {
  background: transparent;
  border: 0;
  padding: 8px 4px;
  box-shadow: none;
}
.about-page .about-stat .num {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.about-page .about-stat .num.accent { color: var(--secondary); }
.about-page .about-stat .item > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.about-values { margin-top: 8px; }
.about-page .value {
  background: #f8fafb;
  border: 1px solid #e8ecf0;
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-page .value-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0, 102, 153, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 4px;
}
.about-page .value strong { font-size: 20px; }
.about-page .value span { color: var(--muted); font-size: 15px; line-height: 1.6; }
.about-story-panel { padding: 36px 32px; }
.about-story-block { margin-bottom: 48px; }
.about-body {
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.8;
  color: var(--text);
  margin: 0;
}
.about-mission-block {
  padding-left: 0;
  border-left: 0;
}
@media (min-width: 768px) {
  .about-mission-block {
    padding-left: 28px;
    border-left: 4px solid rgba(0, 102, 153, 0.25);
  }
}
.about-mission {
  font-size: clamp(18px, 2.4vw, 28px);
  line-height: 1.7;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}
.about-cta-panel { text-align: center; padding: 48px 32px; }
.about-cta-text {
  font-size: clamp(18px, 2.4vw, 28px);
  color: var(--muted);
  font-weight: 300;
  line-height: 1.6;
  margin: 0 0 28px;
}
.about-cta-panel .btn-row { justify-content: center; }

/* Product detail - 对齐线上 */
.pd-hero { padding: 72px 0 40px; background: #fff; }
.pd-hero-inner { max-width: 1200px; text-align: center; }
.pd-cat {
  margin: 0 0 14px; font-size: 11px; font-weight: 500; color: var(--primary);
  letter-spacing: .2em; text-transform: uppercase;
}
.pd-title {
  margin: 0; font-size: clamp(28px, 6vw, 64px); font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.08;
}
.pd-desc {
  margin: 20px auto 0; max-width: 640px; color: var(--muted);
  font-size: clamp(16px, 2.2vw, 20px); line-height: 1.6;
}
.pd-actions { margin-top: 28px; }
.pd-gallery { margin-top: 36px; max-width: 980px; margin-left: auto; margin-right: auto; }
.pd-main {
  aspect-ratio: 4/3; min-height: 240px; display: flex; align-items: center; justify-content: center;
}
.pd-main img { width: 100%; height: 100%; object-fit: contain; }
@media (min-width: 768px) {
  .pd-main { aspect-ratio: 16/10; min-height: 360px; }
}
.pd-thumbs {
  display: flex; justify-content: center; gap: 10px;
  margin-top: 20px; overflow-x: auto; -webkit-overflow-scrolling: touch;
  padding: 4px 8px 12px; scrollbar-width: none;
}
.pd-thumbs::-webkit-scrollbar { display: none; }
.pd-thumb {
  flex: 0 0 auto; width: 56px; height: 56px; padding: 0;
  border: 2px solid transparent; border-radius: 12px; overflow: hidden;
  background: var(--bg-alt); cursor: pointer; touch-action: manipulation;
}
.pd-thumb.active { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(0,102,153,.2); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (min-width: 768px) {
  .pd-thumb { width: 64px; height: 64px; }
}

.pd-highlights {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 28px;
}
@media (min-width: 768px) {
  .pd-highlights { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .pd-highlights { grid-template-columns: repeat(6, 1fr); }
}
.pd-hl {
  text-align: center; padding: 20px 12px; border-radius: 16px;
  background: var(--bg-alt); border: 1px solid var(--border);
}
.pd-hl-val { margin: 0 0 6px; font-size: clamp(20px, 3vw, 28px); font-weight: 600; color: var(--primary); }
.pd-hl-key { margin: 0; font-size: 13px; color: var(--muted); }

.pd-details { padding: 0; }
.pd-detail-row { padding: 40px 0; }
.pd-detail-row.even { background: #fff; }
.pd-detail-row.odd { background: #fbfbfd; }
.pd-detail-img {
  max-width: 980px; margin: 0 auto; aspect-ratio: 4/3; min-height: 220px;
  display: flex; align-items: center; justify-content: center;
}
.pd-detail-img img { width: 100%; height: 100%; object-fit: contain; }
@media (min-width: 768px) {
  .pd-detail-row { padding: 64px 0; }
  .pd-detail-img { aspect-ratio: 16/10; min-height: 320px; }
}

.pd-specs {
  margin-top: 28px; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff;
}
.pd-spec-row {
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
  padding: 14px 18px; border-bottom: 1px solid rgba(210,210,215,.6); font-size: 14px;
}
.pd-spec-row:last-child { border-bottom: 0; }
.pd-spec-row span { color: var(--muted); }
.pd-spec-row strong { font-weight: 600; text-align: right; }

/* legacy detail (unused) */
.detail-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: start; }
.gallery-main { background: var(--bg-alt); border-radius: 20px; aspect-ratio: 4/3; overflow: hidden; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; padding: 20px; }
.thumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.thumbs button {
  width: 72px; height: 72px; padding: 0; border: 2px solid transparent; border-radius: 12px;
  overflow: hidden; background: var(--bg-alt); cursor: pointer;
}
.thumbs button.active { border-color: var(--primary); }
.thumbs img { width: 100%; height: 100%; object-fit: contain; }
.specs { width: 100%; border-collapse: collapse; margin-top: 16px; }
.specs th, .specs td { text-align: left; padding: 10px 8px; border-bottom: 1px solid #eee; font-size: 14px; }
.specs th { color: var(--muted); width: 40%; font-weight: 500; }

/* Contact */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-card {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px 20px; text-align: center;
}
.contact-card h3 { margin: 0 0 8px; }
.contact-card p { margin: 0; color: var(--primary); }
.form {
  background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 28px;
  display: grid; gap: 14px; max-width: 640px; margin: 0 auto;
}
.form label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid #d8dde3;
  font: inherit; background: var(--bg-alt);
}
.form textarea { min-height: 120px; resize: vertical; }
.alert { padding: 12px 14px; border-radius: 12px; margin-bottom: 12px; }
.alert.ok { background: #e8f8e0; color: #2d6a00; }
.alert.err { background: #fde8e8; color: #9b1c1c; }
.cats-radio { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cats-radio label {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px; cursor: pointer; background: var(--bg-alt);
}
.cats-radio input { margin-right: 6px; }

/* Footer */
.site-footer { background: var(--primary); color: #fff; margin-top: 40px; padding: 40px 0 24px; }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; color: rgba(255,255,255,.85); font-size: 14px; }
.ft-title { color: #fff; font-weight: 600; margin: 0 0 8px; }
.footer-grid a { display: block; color: rgba(255,255,255,.85); margin: 4px 0; }
.footer-grid a:hover { color: #fff; }
.footer-copy { margin-top: 28px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.25); text-align: center; font-size: 12px; color: rgba(255,255,255,.7); }
.footer-copy a { color: rgba(255,255,255,.7); display: inline; }
.footer-copy a:hover { color: #fff; }

.about-stat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.about-stat .item { background: #fff; border-radius: 16px; padding: 20px; border: 1px solid var(--border); }
.about-stat .num { font-size: 36px; font-weight: 600; color: var(--primary); margin: 0; }
.panel { background: #fff; border-radius: 20px; border: 1px solid #e5e7eb; box-shadow: var(--shadow); padding: 28px; }

@media (max-width: 900px) {
  .grid-4, .values, .about-stat, .contact-cards, .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-3, .detail-grid, .grid-2, .about-home { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .lang-switch-desktop { display: none; }
  .nav-bar { grid-template-columns: auto auto; padding: 0 16px; }
  .nav-center { display: none !important; }
  .mega { display: none !important; }
  .pd-actions { flex-direction: column; align-items: stretch; }
  .pd-actions .btn { width: 100%; }

  .mobile-nav-backdrop {
    display: block;
    position: fixed; inset: 0; z-index: 60;
    background: rgba(0, 0, 0, 0.4);
  }
  .mobile-nav-backdrop[hidden] { display: none; }

  .mobile-drawer {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; right: 0; bottom: 0;
    z-index: 61;
    width: min(320px, 85vw);
    background: #fff;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    padding-top: max(env(safe-area-inset-top), 12px);
    padding-bottom: env(safe-area-inset-bottom);
    animation: slideInRight 0.3s ease-out;
  }
  .mobile-drawer[hidden] { display: none; }

  .mobile-drawer-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; border-bottom: 1px solid rgba(210, 210, 215, 0.4);
    flex-shrink: 0;
  }
  .mobile-drawer-title {
    display: flex; align-items: center; gap: 12px;
    font-size: 17px; font-weight: 600; color: var(--text);
  }
  .mobile-drawer-close {
    width: 40px; height: 40px; border: 0; background: transparent;
    border-radius: 10px; cursor: pointer; color: var(--text);
    display: inline-flex; align-items: center; justify-content: center;
  }
  .mobile-drawer-close:hover { background: #f0f4f8; }

  .mobile-drawer-body {
    flex: 1; overflow-y: auto; padding: 8px 0 24px;
    -webkit-overflow-scrolling: touch;
  }
  .mobile-cat { border-bottom: 1px solid rgba(210, 210, 215, 0.3); }
  .mobile-cat-row { display: flex; align-items: center; }
  .mobile-cat-link {
    flex: 1; padding: 16px; font-size: 17px; font-weight: 500; color: var(--text);
  }
  .mobile-cat-link:hover { background: #f0f4f8; color: var(--primary); }
  .mobile-cat-toggle {
    width: 48px; height: 48px; border: 0; background: transparent;
    color: var(--muted); cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .mobile-cat-toggle:hover { color: var(--primary); background: #f0f4f8; }
  .mobile-cat.is-open .mobile-cat-toggle svg { transform: rotate(180deg); }
  .mobile-cat-toggle svg { transition: transform 0.2s; }
  .mobile-cat-products {
    display: none; padding: 0 16px 12px;
    flex-direction: column; gap: 4px;
  }
  .mobile-cat.is-open .mobile-cat-products { display: flex; }
  .mobile-cat-products a {
    padding: 8px 0 8px 16px; font-size: 15px; color: var(--muted);
    border-left: 2px solid transparent;
  }
  .mobile-cat-products a:hover {
    color: var(--primary); border-left-color: rgba(0, 102, 153, 0.4);
  }
  .mobile-page-link {
    display: block; padding: 16px; font-size: 17px; font-weight: 500;
    color: var(--text); border-bottom: 1px solid rgba(210, 210, 215, 0.3);
  }
  .mobile-page-link:hover { background: #f0f4f8; color: var(--primary); }

  body.mobile-nav-open { overflow: hidden; }
}
@media (max-width: 560px) {
  .grid-4, .values, .about-stat, .contact-cards, .footer-grid, .cats-radio { grid-template-columns: 1fr; }
  .hero { min-height: 60vh; }
  .card-actions { flex-direction: column; }
  .pd-hero { padding-top: 64px; }
  .btn-row { width: 100%; }
}