:root {
  --bg: #04060a;
  --bg-elev: #0a101a;
  --line: #233345;
  --text: #e8eff8;
  --muted: #9eb4ca;
  --primary: #5ec4ff;
  --accent: #ff7a29;
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 88% -6%, rgba(94, 196, 255, 0.14), transparent),
    radial-gradient(650px 420px at 12% 112%, rgba(255, 122, 41, 0.12), transparent),
    linear-gradient(180deg, #04060a 0%, #060a11 100%);
  line-height: 1.56;
}

a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(4, 8, 13, 0.76);
  border-bottom: 1px solid rgba(158, 180, 202, 0.16);
}

.header-inner {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand-mark {
  width: 1.1rem;
  height: 1.1rem;
  transform: rotate(45deg);
  background: linear-gradient(140deg, var(--primary), #bde8ff);
  box-shadow: 0 0 28px rgba(94, 196, 255, 0.45);
}
.brand-text {
  font-family: "Rajdhani", sans-serif;
  letter-spacing: 0.08em;
  font-size: 1.6rem;
  font-weight: 700;
}

.site-nav { display: flex; gap: 1.3rem; }
.site-nav a { color: var(--muted); transition: color 0.2s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--text); }

.header-contact-menu {
  position: relative;
  padding-bottom: 0.45rem;
  margin-bottom: -0.45rem;
}

.header-cta {
  background: transparent;
  padding: 0.58rem 1.05rem;
  border: 1px solid rgba(94, 196, 255, 0.48);
  border-radius: 999px;
  color: #d8f4ff;
  font: inherit;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.header-cta:hover { background: rgba(94, 196, 255, 0.16); color: #f4fbff; }

.contact-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
}

.contact-trigger-icon {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  opacity: 0.92;
}

.contact-trigger-label-mobile {
  display: none;
}

.contact-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 220px;
  border: 1px solid rgba(158, 180, 202, 0.3);
  background: rgba(8, 16, 26, 0.96);
  box-shadow: 0 14px 26px rgba(2, 8, 14, 0.45);
  padding: 0.35rem;
  display: grid;
  gap: 0.22rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 45;
}

.header-contact-menu:hover .contact-dropdown,
.header-contact-menu:focus-within .contact-dropdown,
.header-contact-menu.is-open .contact-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.contact-dropdown a,
.contact-wechat-btn {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: #cde9fb;
  padding: 0.56rem 0.62rem;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.contact-dropdown a:hover,
.contact-dropdown a:focus-visible,
.contact-wechat-btn:hover,
.contact-wechat-btn:focus-visible {
  border-color: rgba(158, 180, 202, 0.34);
  background: rgba(13, 26, 40, 0.82);
  color: #ebf7ff;
}

main { overflow: clip; }

.hero {
  position: relative;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 3.2rem 0 3rem;
  isolation: isolate;
}

.hero-noise,
.hero-ring {
  position: absolute;
  pointer-events: none;
  z-index: -1;
  will-change: transform;
}

.hero-noise {
  inset: -120px -80px auto -80px;
  height: 420px;
  background:
    repeating-linear-gradient(90deg, rgba(94, 196, 255, 0.04) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(0deg, rgba(94, 196, 255, 0.03) 0 1px, transparent 1px 24px);
  mask-image: radial-gradient(circle at 50% 35%, black 35%, transparent 100%);
}

.hero-ring {
  width: 520px;
  height: 520px;
  right: -120px;
  top: -80px;
  border: 1px solid rgba(94, 196, 255, 0.18);
  border-radius: 50%;
  box-shadow: inset 0 0 90px rgba(94, 196, 255, 0.06);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 2.3rem;
  align-items: center;
}

.hero-kicker,
.section-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: #84d4ff;
  font-weight: 500;
}

h1 {
  margin: 0.62rem 0 1rem;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(2.7rem, 5.8vw, 5rem);
  line-height: 0.9;
  letter-spacing: 0.015em;
  text-transform: uppercase;
}

.hero-description { margin: 0; color: var(--muted); max-width: 43ch; }
.hero-actions { margin-top: 1.45rem; display: flex; gap: 0.8rem; flex-wrap: wrap; }

.hero-social {
  margin-top: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.38rem 0.5rem 0.38rem 0.55rem;
  border: 1px solid rgba(158, 180, 202, 0.28);
  background: rgba(8, 16, 26, 0.48);
}

.hero-social-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8eb5d0;
  margin-right: 0.12rem;
}

.hero-social a {
  width: 1.85rem;
  height: 1.85rem;
  border: 1px solid rgba(158, 180, 202, 0.32);
  background: rgba(11, 24, 38, 0.7);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #b8def7;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.hero-social a:hover {
  border-color: rgba(184, 222, 247, 0.9);
  color: #def2ff;
  transform: translateY(-1px);
}

.hero-social svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
}

.btn {
  min-height: 2.75rem;
  padding: 0 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(90deg, var(--primary), #87d8ff);
  color: #052238;
  font-weight: 700;
}
.btn-secondary { border-color: rgba(158, 180, 202, 0.45); color: #d8e8f7; }
.btn-secondary:hover { border-color: rgba(158, 180, 202, 0.9); }

.hero-metrics {
  margin: 1.7rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 1.8rem;
}
.hero-metrics div { min-width: 130px; }
.hero-metrics dt {
  font-family: "Rajdhani", sans-serif;
  font-size: 2.3rem;
  line-height: 1;
  color: #ecf8ff;
}
.hero-metrics dd { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.92rem; }

.hero-visual { margin: 0; }
.valve-stage {
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(158, 180, 202, 0.25);
  background: linear-gradient(160deg, rgba(94, 196, 255, 0.06), rgba(255, 122, 41, 0.05)), #07111d;
  position: relative;
  overflow: hidden;
  transition: transform 0.45s ease, border-color 0.35s ease, box-shadow 0.45s ease;
}
.stage-grid {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(158, 180, 202, 0.08) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(0deg, rgba(158, 180, 202, 0.08) 0 1px, transparent 1px 36px);
  opacity: 0.35;
}

.stage-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.48;
  filter: saturate(0.85) contrast(1.05);
  transform: scale(1);
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.45s ease, filter 0.45s ease;
}

.valve-stage:hover {
  transform: translateY(-4px);
  border-color: rgba(158, 180, 202, 0.55);
  box-shadow: 0 18px 34px rgba(2, 9, 16, 0.45);
}

.valve-stage:hover .stage-photo {
  transform: scale(1.06);
  opacity: 0.62;
  filter: saturate(1) contrast(1.08);
}

.hero-visual figcaption {
  margin-top: 0.66rem;
  color: var(--muted);
  font-size: 0.83rem;
}

.section {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0;
  border-top: 1px solid rgba(158, 180, 202, 0.2);
}

.section-head h2 {
  margin: 0.55rem 0 0;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 0.95;
  text-transform: uppercase;
}

.catalog-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.catalog-item {
  border: 1px solid rgba(158, 180, 202, 0.24);
  background: rgba(8, 16, 26, 0.58);
  padding: 0.5rem 0.65rem 0.85rem;
}

.catalog-item h3 {
  margin-top: 0.2rem;
  font-size: 1.07rem;
}

.catalog-en {
  margin: 0.4rem 0 0;
  color: #7eb9de;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.catalog-item p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.catalog-item .quote-btn {
  margin-top: 0.85rem;
  width: 100%;
}

.advantage-layout,
.case-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.advantage-layout article,
.case-grid article,
.goal-item {
  border-top: 1px solid rgba(158, 180, 202, 0.32);
  padding-top: 0.95rem;
}

.item-media {
  margin: 0 0 0.85rem;
  border: 1px solid rgba(158, 180, 202, 0.24);
  background: rgba(9, 17, 27, 0.7);
  padding: 0.4rem;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.item-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 15%, rgba(184, 222, 247, 0.2) 50%, transparent 85%);
  transform: translateX(-120%);
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.item-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transform: scale(1);
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1), filter 0.4s ease;
}

.item-media:hover {
  transform: translateY(-3px);
  border-color: rgba(184, 222, 247, 0.52);
  box-shadow: 0 12px 26px rgba(2, 9, 16, 0.4);
}

.item-media:hover::after {
  transform: translateX(120%);
}

.item-media:hover img {
  transform: scale(1.06);
  filter: saturate(1.05) contrast(1.04);
}

h3 { margin: 0; font-size: 1.15rem; }
.advantage-layout p,
.case-grid p,
.goal-item p { margin: 0.55rem 0 0; color: var(--muted); }

.goals-section {
  position: relative;
}

.goals-track {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
}

.goal-item {
  will-change: transform;
}

.goal-item span {
  display: inline-block;
  font-family: "Rajdhani", sans-serif;
  font-size: 1.9rem;
  color: #7ccfff;
  line-height: 1;
}

.section-dark {
  background: linear-gradient(180deg, rgba(11, 18, 28, 0.9), rgba(8, 13, 21, 0.9));
}

.product-shell {
  padding: 0 clamp(1.6rem, 3.2vw, 2.8rem);
}

#products .section-head h2 {
  max-width: 28ch;
}

.product-table { margin-top: 1.5rem; }
.table-row {
  display: grid;
  grid-template-columns: 1.1fr minmax(170px, 1.05fr) minmax(130px, 0.82fr) minmax(130px, 0.82fr) 1.25fr;
  gap: 1.1rem;
  padding: 1.2rem 1.15rem;
  border-bottom: 1px solid rgba(158, 180, 202, 0.24);
  align-items: center;
}
.table-head { color: #bee8ff; font-weight: 700; }
.table-head {
  padding-top: 0.95rem;
  padding-bottom: 1rem;
}
.table-row [role="cell"] {
  line-height: 1.5;
}
.table-row [role="cell"] strong {
  display: block;
  font-family: "Rajdhani", sans-serif;
  font-size: 1.2rem;
  color: #e9f6ff;
  line-height: 1;
}
.table-row [role="cell"] small {
  display: block;
  margin-top: 0.2rem;
  color: #7eb9de;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tech-notes {
  margin-top: 2rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid rgba(158, 180, 202, 0.18);
  background: rgba(8, 16, 26, 0.52);
  border-radius: 6px;
}

.tech-notes-title {
  margin: 0 0 0.85rem;
  font-family: "Rajdhani", sans-serif;
  font-size: 1.15rem;
  color: #bee8ff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tech-notes-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.tech-notes-list li {
  padding-left: 1rem;
  border-left: 2px solid rgba(94, 196, 255, 0.4);
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.93rem;
}

.tech-notes-list li strong {
  color: #d8f0ff;
}

.cta-section {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 2rem;
  align-items: start;
}

.video-section .section-head h2 {
  max-width: 24ch;
}

.video-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.video-card {
  min-width: 0;
}

.video-shell {
  margin: 0;
  width: 100%;
  border: 1px solid rgba(158, 180, 202, 0.25);
  background: rgba(8, 16, 26, 0.72);
  padding: 0.35rem;
}

.video-frame {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
}

.video-note {
  margin: 0.45rem 0 0;
  width: 100%;
  color: #8ca6bc;
  font-size: 0.82rem;
}

.video-note a {
  color: #b8def7;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.video-actions {
  margin-top: 1rem;
}

.cta-content p { color: var(--muted); max-width: 44ch; }

.cta-form { display: grid; gap: 0.58rem; }
.cta-form label { font-size: 0.9rem; color: #b4dcf8; }

.cta-form input,
.cta-form select,
.cta-form textarea {
  width: 100%;
  border: 1px solid rgba(158, 180, 202, 0.42);
  background: rgba(10, 21, 34, 0.74);
  color: #edf7ff;
  padding: 0.74rem 0.84rem;
  font: inherit;
}

.cta-form button { margin-top: 0.4rem; }

.quote-modal {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: none;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: max(0.8rem, env(safe-area-inset-top)) 0.7rem max(0.8rem, env(safe-area-inset-bottom));
}

.quote-modal.is-open {
  display: block;
}

.quote-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 10, 0.74);
  backdrop-filter: blur(3px);
}

.quote-modal-panel {
  position: relative;
  width: min(560px, calc(100% - 1.4rem));
  margin: clamp(1rem, 4vh, 3rem) auto 0;
  background: linear-gradient(180deg, rgba(10, 19, 30, 0.96), rgba(8, 14, 22, 0.96));
  border: 1px solid rgba(158, 180, 202, 0.28);
  padding: 1.1rem 1rem 1rem;
  max-height: calc(100dvh - 1.6rem - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.quote-modal-panel h3 {
  margin: 0.45rem 0 0.8rem;
  font-size: 1.35rem;
}

.quote-modal-close {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(158, 180, 202, 0.35);
  background: rgba(12, 24, 36, 0.85);
  color: #d9ecfb;
  cursor: pointer;
  font-size: 1.1rem;
}

.quote-form {
  display: grid;
  gap: 0.52rem;
}

.quote-form label {
  font-size: 0.88rem;
  color: #b4dcf8;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  border: 1px solid rgba(158, 180, 202, 0.42);
  background: rgba(10, 21, 34, 0.74);
  color: #edf7ff;
  padding: 0.72rem 0.8rem;
  font: inherit;
}

.cta-form select,
.quote-form select {
  min-height: 2.8rem;
  line-height: 1.3;
  background-color: #0a1522;
  -webkit-appearance: menulist;
  appearance: auto;
}

.cta-form select option,
.quote-form select option {
  color: #0b1b2a;
  background: #ffffff;
}

.quote-form button {
  margin-top: 0.3rem;
}

.sr-only-field {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.form-status {
  margin: 0.45rem 0 0;
  min-height: 1.2rem;
  font-size: 0.85rem;
  color: #8ca6bc;
}

.form-status.is-success {
  color: #8ff0b8;
}

.form-status.is-error {
  color: #ffb5b5;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 75;
  display: none;
}

.wechat-modal.is-open {
  display: block;
}

.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 10, 0.74);
  backdrop-filter: blur(3px);
}

.wechat-modal-panel {
  position: relative;
  width: min(420px, calc(100% - 1.4rem));
  margin: clamp(1rem, 5vh, 3.2rem) auto 0;
  background: linear-gradient(180deg, rgba(10, 19, 30, 0.96), rgba(8, 14, 22, 0.96));
  border: 1px solid rgba(158, 180, 202, 0.28);
  padding: 1.1rem 1rem 1rem;
}

.wechat-modal-panel h3 {
  margin: 0.45rem 0 0.8rem;
  font-size: 1.35rem;
}

.wechat-modal-close {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(158, 180, 202, 0.35);
  background: rgba(12, 24, 36, 0.85);
  color: #d9ecfb;
  cursor: pointer;
  font-size: 1.1rem;
}

.wechat-qr {
  margin: 0;
  border: 1px solid rgba(158, 180, 202, 0.28);
  background: rgba(10, 21, 34, 0.62);
  padding: 0.55rem;
}

.wechat-qr img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.wechat-note {
  margin: 0.6rem 0 0;
  color: #8ca6bc;
  font-size: 0.85rem;
}

.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus,
.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus,
.contact-wechat-btn:focus-visible,
.btn:focus-visible,
.site-nav a:focus-visible,
.header-cta:focus-visible {
  outline: 2px solid #6fd4ff;
  outline-offset: 2px;
}

.site-footer {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.2rem 0 2.5rem;
  color: #7f97ad;
  font-size: 0.9rem;
  border-top: 1px solid rgba(158, 180, 202, 0.22);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr 0.9fr 1fr;
  gap: 1.6rem;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid rgba(158, 180, 202, 0.18);
}

.footer-brand-link {
  margin-bottom: 0.85rem;
}

.footer-top h3 {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #b8def7;
}

.footer-top p {
  margin: 0;
  max-width: 34ch;
  color: #8ca6bc;
}

.footer-top ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.48rem;
}

.footer-top li {
  color: #8ca6bc;
}

.footer-top a {
  color: #b8def7;
  transition: color 0.2s ease;
}

.footer-top a:hover {
  color: #def2ff;
}

.social-links {
  margin-top: 0.85rem;
  display: flex;
  gap: 0.5rem;
}

.social-links a {
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(158, 180, 202, 0.35);
  background: rgba(10, 21, 34, 0.65);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #b8def7;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.social-links a:hover {
  border-color: rgba(184, 222, 247, 0.85);
  color: #def2ff;
  transform: translateY(-1px);
}

.social-links svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: currentColor;
}

.footer-bottom {
  padding-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.2rem;
}

.footer-bottom p {
  margin: 0;
  color: #7892a8;
}

.whatsapp-float {
  position: fixed;
  right: clamp(0.8rem, 2vw, 1.4rem);
  bottom: clamp(0.8rem, 2.2vw, 1.5rem);
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  min-height: 2.9rem;
  padding: 0.35rem 0.9rem 0.35rem 0.65rem;
  border-radius: 999px;
  background: #25d366;
  color: #04220f;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(9, 32, 18, 0.45);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.whatsapp-float:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
}

.whatsapp-float svg {
  width: 1.35rem;
  height: 1.35rem;
  fill: currentColor;
}

.quote-modal.is-open ~ .whatsapp-float,
.wechat-modal.is-open ~ .whatsapp-float {
  opacity: 0;
  pointer-events: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view { opacity: 1; transform: none; }

@media (max-width: 1000px) {
  .site-nav { display: none; }
  .video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .catalog-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-grid,
  .goals-track,
  .cta-section,
  .advantage-layout,
  .case-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid,
  .cta-section { grid-template-columns: 1fr; }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .hero { padding-top: 2.3rem; }
  .header-inner { min-height: 68px; }
  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .header-contact-menu {
    padding-bottom: 0;
    margin-bottom: 0;
  }

  .contact-trigger {
    min-height: 2.2rem;
    padding: 0.42rem 0.76rem;
    font-size: 0.84rem;
    border-color: rgba(94, 196, 255, 0.58);
    background: rgba(8, 18, 30, 0.72);
    gap: 0.34rem;
    animation: mobile-contact-breathe 2.4s ease-in-out infinite;
  }

  .contact-trigger-icon {
    width: 0.95rem;
    height: 0.95rem;
  }

  .contact-trigger-label-desktop { display: none; }
  .contact-trigger-label-mobile { display: inline; }

  .contact-dropdown {
    top: calc(100% + 0.42rem);
    right: 0;
    min-width: min(84vw, 290px);
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .hero-social {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .goals-track,
  .advantage-layout,
  .case-grid { grid-template-columns: 1fr; }

  .table-head {
    display: none;
  }

  .table-row {
    grid-template-columns: 1fr;
    gap: 0.45rem;
    padding: 1rem 0.95rem;
    background: rgba(8, 18, 28, 0.75);
    border: 1px solid rgba(158, 180, 202, 0.2);
    border-radius: 12px;
    margin-bottom: 0.7rem;
  }

  .quote-modal {
    padding: max(0.55rem, env(safe-area-inset-top)) 0.45rem max(0.7rem, env(safe-area-inset-bottom));
  }

  .quote-modal-panel {
    width: calc(100% - 0.3rem);
    margin: 0 auto;
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  }

  .table-row [role="cell"] {
    display: grid;
    grid-template-columns: 8.4rem 1fr;
    gap: 0.6rem;
    align-items: baseline;
  }

  .table-row [role="cell"]::before {
    content: attr(data-label);
    color: #8eb5d0;
    font-size: 0.76rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  .table-row [role="cell"]:first-child {
    grid-template-columns: 1fr;
    padding-bottom: 0.25rem;
    margin-bottom: 0.2rem;
    border-bottom: 1px solid rgba(158, 180, 202, 0.16);
  }

  .table-row [role="cell"]:first-child::before {
    content: none;
  }

  .product-shell {
    padding: 0 0.8rem;
  }

  .site-footer {
    padding-top: 1.7rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.4rem;
  }

  .whatsapp-float {
    width: 3rem;
    height: 3rem;
    min-height: 3rem;
    justify-content: center;
    padding: 0;
    border-radius: 50%;
  }

  .whatsapp-float span {
    display: none;
  }
}

@keyframes mobile-contact-breathe {
  0%, 100% {
    box-shadow: 0 0 0 rgba(94, 196, 255, 0);
    border-color: rgba(94, 196, 255, 0.58);
  }
  50% {
    box-shadow: 0 0 14px rgba(94, 196, 255, 0.36);
    border-color: rgba(128, 214, 255, 0.88);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}