/* MOTRIX PARTS — 1200px responsive landing page.

   Edit the palette and container width here. No framework or build step required. */

:root {
  --blue: #005bff;

  --blue-hover: #0048d2;

  --navy: #071a4e;

  --muted: #4b5c7f;

  --line: #e0e7f3;

  --pale: #f3f6fc;

  --container: 1280px;

  --header-height: 76px;

  --radius: 5px;

  --font-display:
    "Barlow Condensed", Impact, "Arial Narrow", "Noto Sans Display", sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

/* html {
  scroll-behavior: smooth;

  scroll-padding-top: calc(var(--header-height) + 16px);
} */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--blue) transparent;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

/* Chrome / Edge / Safari */
html::-webkit-scrollbar {
  width: 8px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  background: var(--blue);
  border-radius: 999px;
}

html::-webkit-scrollbar-thumb:hover {
  background: var(--blue-hover);
}

body {
  margin: 0;

  color: var(--navy);

  background: #fff;

  font-family: "Barlow", Arial, sans-serif;

  font-size: 16px;

  line-height: 1.5;

  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

a {
  color: inherit;

  text-decoration: none;
}

img {
  display: block;

  max-width: 100%;
}

ul {
  list-style: none;

  margin: 0;

  padding: 0;
}

h1,
h2,
h3,
p,
blockquote {
  margin: 0;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid #91b6ff;

  outline-offset: 5px;
}

::selection {
  background: #c5daff;

  color: var(--navy);
}

[hidden] {
  display: none !important;
}

.container {
  width: min(var(--container), calc(100% - 64px));

  margin-inline: auto;
}

.svg-library {
  position: absolute;

  width: 0;

  height: 0;

  overflow: hidden;
}

.icon {
  width: 22px;

  height: 22px;

  flex: 0 0 auto;

  fill: none;

  stroke: currentColor;

  stroke-width: 1.8;

  stroke-linecap: round;

  stroke-linejoin: round;
}

.skip-link {
  position: fixed;

  left: 16px;

  top: -100px;

  z-index: 200;

  background: var(--navy);

  color: #fff;

  padding: 12px 18px;

  border-radius: 4px;
}

.skip-link:focus {
  top: 12px;
}

.section {
  padding-block: 40px;
}

.button {
  display: inline-flex;

  align-items: center;

  justify-content: center;

  gap: 12px;

  min-height: 45px;

  padding: 11px 22px;

  border: 1px solid var(--blue);

  border-radius: 4px;

  background: var(--blue);

  color: #fff;

  font-size: 13px;

  font-weight: 700;

  line-height: 1.3;

  white-space: nowrap;

  transition:
    background 0.25s,
    border-color 0.25s,
    box-shadow 0.25s,
    transform 0.4s var(--ease);
}

.button .icon {
  width: 17px;

  height: 17px;
}

.button:hover {
  background: var(--blue-hover);

  border-color: var(--blue-hover);

  box-shadow: 0 7px 18px #005bff20;

  transform: translateY(-2px);
}

.button-outline {
  background: #ffffffdd;

  color: var(--navy);
}

.button-outline:hover {
  background: #f0f5ff;

  color: var(--blue);
}

.button-small {
  min-height: 37px;

  padding: 9px 14px;

  font-size: 12px;

  gap: 9px;
}

.eyebrow {
  font-size: 12px;

  font-weight: 700;

  letter-spacing: 0.6px;

  text-transform: uppercase;
}

/* Header */

.site-header {
  position: sticky;

  top: 0;

  z-index: 100;

  background: #fffffff5;

  backdrop-filter: blur(14px);

  border-bottom: 1px solid #e5ecf5;
}

.header-inner {
  height: var(--header-height);

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 30px;
}

.brand {
  display: block;

  flex-shrink: 0;
}

.brand img {
  width: 166px;

  height: auto;
}

.site-nav {
  display: flex;

  align-items: center;

  gap: 30px;

  margin-left: auto;

  margin-right: 44px;
}

.nav-link {
  position: relative;

  font-size: 14px;

  font-weight: 700;

  line-height: 2;

  padding-block: 9px;
}

.nav-link::after {
  content: "";

  position: absolute;

  inset: auto 0 5px;

  height: 2px;

  background: var(--blue);

  transform: scaleX(0);

  transform-origin: left;

  transition: transform 0.3s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--blue);
}

.nav-link.is-active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.header-inquiry {
  min-width: 118px;

  min-height: 40px;

  padding-block: 9px;
}

.menu-toggle,
.nav-mobile-inquiry {
  display: none;
}

.mobile-menu-logo,
.mobile-menu-close {
  display: none;
}
/* Hero — real text over the artwork from the approved visual. */

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;

  background-image: url("assets/background.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* 中间白层 */
.hero::before {
  content: "";

  position: absolute;
  inset: 0;

  background: rgba(255, 255, 255, 0.48);

  z-index: 1;
  pointer-events: none;
}

/* 最上层 content */
.hero-inner {
  position: relative;
  z-index: 2;
}

/* 最底层照片 */
.hero-art {
  position: absolute;
  inset: 0 0 0 auto;

  width: 70%;

  z-index: 0;

  overflow: hidden;

  /* -webkit-mask-image: linear-gradient(to right, transparent, #000 18%);

  mask-image: linear-gradient(to right, transparent, #000 18%); */
}

.hero-art::before {
  content: "";

  position: absolute;
  inset: 0;

  z-index: 1;
  pointer-events: none;

  background: linear-gradient(
    to left,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.08) 10%,
    rgba(255, 255, 255, 0.14) 22%,
    rgba(255, 255, 255, 0.18) 38%,
    rgba(255, 255, 255, 0.18) 100%
  );
}

.hero-art img {
  width: 100%;
  height: 100%;

  object-fit: cover;
  object-position: center;
}

/* content 再明确放顶层 */
.hero-copy {
  position: relative;

  width: 49%;

  z-index: 2;

  padding-block: 35px 29px;
  padding-left: 16px;
}

.hero-copy .eyebrow {
  margin-bottom: 12px;
}

h1 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-weight: 800;

  font-style: italic;

  font-size: clamp(42px, 4.5vw, 62px);

  line-height: 0.97;

  letter-spacing: -0.9px;
}

h1 span {
  white-space: normal;
}

.hero-description {
  margin-top: 17px;

  font-size: 17px;

  font-weight: 500;

  line-height: 1.4;
}

.hero-actions {
  display: flex;

  gap: 13px;

  margin-top: 22px;
}

.hero-actions .button {
  min-width: 142px;
}

.hero-benefits {
  display: flex;

  gap: 24px;

  margin-top: 37px;
}

.hero-benefits li {
  display: flex;

  align-items: center;

  gap: 9px;
}

.hero-benefits .icon {
  width: 27px;

  height: 27px;

  color: var(--blue);
}

.hero-benefits strong,
.hero-benefits small {
  display: block;
}

.hero-benefits strong {
  font-size: 11px;

  font-weight: 700;

  line-height: 1.3;

  white-space: nowrap;
}

.hero-benefits small {
  margin-top: 2px;

  font-size: 11px;

  color: #34476c;
}

/* Categories */

.section-heading {
  display: flex;

  align-items: flex-end;

  justify-content: space-between;

  gap: 25px;

  margin-bottom: 16px;
}

h2 {
  font-size: 28px;

  font-weight: 800;

  line-height: 1.15;

  letter-spacing: -0.4px;
}

.section-description {
  font-size: 16px;

  color: var(--muted);
}

.section-note {
  display: flex;

  align-items: center;

  gap: 10px;

  color: var(--blue);

  font-size: 12px;

  font-weight: 600;

  white-space: nowrap;
}

.section-note .icon {
  width: 18px;

  height: 18px;
}

.category-grid {
  display: grid;

  grid-template-columns: repeat(4, minmax(0, 1fr));

  gap: 15px;
}

.category-card {
  min-width: 0;

  border: 1px solid var(--line);

  border-radius: var(--radius);

  overflow: hidden;

  background: #fff;

  transition:
    transform 0.55s var(--ease),
    box-shadow 0.45s,
    border-color 0.3s;
}

.category-image {
  overflow: hidden;

  height: 123px;

  background: #f0f3fa;
}

.category-image img {
  width: 100%;

  height: 100%;

  object-fit: contain;

  transition: transform 0.8s var(--ease);
}

.category-label {
  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 8px;

  padding: 11px 16px;
}

.category-label h3 {
  font-size: 16px;

  line-height: 1.2;

  font-weight: 700;
}

.category-label .icon {
  width: 18px;

  height: 18px;

  color: var(--blue);

  transition: transform 0.4s var(--ease);
}

@media (hover: hover) {
  .category-card:hover {
    transform: translateY(-5px);

    border-color: #93baff;

    box-shadow: 0 12px 22px #08224e0c;
  }

  .category-card:hover img {
    transform: scale(1.055);
  }

  .category-card:hover .icon {
    transform: translateX(3px);
  }
}

/* =========================================================

   PRODUCT QUALITY

========================================================= */

.product-quality {
  background: #f7faff;
}

.product-quality-grid {
  display: grid;

  grid-template-columns: 1.05fr 1fr;

  align-items: stretch;

  gap: 16px;
}

.product-quality-image {
  position: relative;

  min-height: 520px;

  overflow: hidden;

  border-radius: 22px;

  background: #eef4ff;
}

.product-quality-carousel {
  position: absolute;

  inset: 0;
}

.product-quality-slide {
  position: absolute;

  inset: 0;

  width: 100%;

  height: 100%;

  object-fit: cover;

  opacity: 0;

  visibility: hidden;

  transform: scale(1.03);

  transition:
    opacity 0.8s ease,
    visibility 0.8s ease,
    transform 4s ease;
}

.product-quality-slide.is-active {
  opacity: 1;

  visibility: visible;

  transform: scale(1);
}

/* DOTS */

.product-quality-dots {
  position: absolute;

  z-index: 5;

  left: 50%;

  bottom: 20px;

  display: flex;

  align-items: center;

  gap: 8px;

  transform: translateX(-50%);
}

.quality-dot {
  width: 8px;

  height: 8px;

  padding: 0;

  border: 0;

  border-radius: 999px;

  background: rgba(255, 255, 255, 0.55);

  cursor: pointer;

  transition:
    width 0.3s ease,
    background 0.3s ease;
}

.quality-dot.is-active {
  width: 24px;

  background: #ffffff;
}

.product-quality-content {
  display: flex;

  flex-direction: column;

  justify-content: center;
}

.product-quality-content .eyebrow {
  margin-bottom: 10px;

  color: #005bff;

  font-family: "Montserrat", sans-serif;

  font-size: 13px;

  font-weight: 700;

  letter-spacing: 0.14em;

  text-transform: uppercase;
}

.product-quality-content h2 {
  margin: 0;

  color: #0b2457;

  font-family: "Montserrat", sans-serif;

  font-size: clamp(28px, 4vw, 28px);

  font-weight: 800;

  line-height: 1.05;

  letter-spacing: -0.035em;
}

.product-quality-content > p:not(.eyebrow) {
  max-width: 620px;

  margin: 10px 0;

  color: #5d687d;

  font-family: "Inter", sans-serif;

  font-size: 16px;

  line-height: 1.75;
}

.quality-points {
  display: grid;

  grid-template-columns: repeat(1, minmax(0, 1fr));

  gap: 16px;
}

.quality-item {
  position: relative;

  padding: 22px;

  border: 1px solid #dde7f7;

  border-radius: 16px;

  background: #ffffff;

  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.quality-item::before {
  content: "";

  display: block;

  width: 34px;

  height: 4px;

  margin-bottom: 18px;

  border-radius: 999px;

  background: #005bff;
}

.quality-item:hover {
  transform: translateY(-5px);

  border-color: #bdd3ff;

  box-shadow: 0 16px 40px rgba(13, 51, 112, 0.1);
}

.quality-item h3 {
  margin: 0 0 9px;

  color: #10295c;

  font-family: "Montserrat", sans-serif;

  font-size: 20px;

  font-weight: 700;
}

.quality-item p {
  margin: 0;

  color: #69758a;

  font-family: "Inter", sans-serif;

  font-size: 16px;

  line-height: 1.6;
}

/* =========================================================

   \<!-- BUILT FOR RELIABLE PERFORMANCE -->

========================================================= */

.product-info {
  background: #ffffff;
}

.product-info .section-heading {
  margin-bottom: 24px;
}

.product-info .section-heading h2 {
  margin: 0;

  color: #0b2457;

  font-family: "Montserrat", sans-serif;

  font-size: clamp(28px, 4vw, 28px);

  font-weight: 800;

  line-height: 1.08;

  letter-spacing: -0.03em;
}

.section-heading p {
  max-width: 650px;

  color: #6c7688;

  font-family: "Inter", sans-serif;

  font-size: 16px;

  line-height: 1.7;
}

.product-info-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 20px;
}

.product-info-card {
  position: relative;

  min-height: 280px;

  overflow: hidden;

  padding: 34px;

  border: 1px solid #e0e8f5;

  border-radius: 18px;

  background: #f8fbff;

  transition:
    transform 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.product-info-card::after {
  content: "";

  position: absolute;

  right: -40px;

  bottom: -40px;

  width: 130px;

  height: 130px;

  border-radius: 50%;

  background: rgba(0, 91, 255, 0.06);
}

.product-info-card:hover {
  transform: translateY(-6px);
  border-color: #bfd3ff;
  box-shadow: 0 18px 46px rgba(0, 51, 140, 0.1);
}

.product-info-number {
  display: inline-flex;

  align-items: center;

  justify-content: center;

  width: 44px;

  height: 44px;

  margin-bottom: 30px;

  border-radius: 12px;

  background: #005bff;

  color: #ffffff;

  font-family: "Montserrat", sans-serif;

  font-size: 14px;

  font-weight: 700;
}

.product-info-card h3 {
  position: relative;

  z-index: 1;

  margin: 0 0 14px;

  color: #10295c;

  font-family: "Montserrat", sans-serif;

  font-size: 21px;

  font-weight: 700;

  line-height: 1.3;
}

.product-info-card p {
  position: relative;

  z-index: 1;

  margin: 0;

  color: #687488;

  font-family: "Inter", sans-serif;

  font-size: 15px;

  line-height: 1.7;
}

/* Blue brand band */

.brands-section {
  position: relative;

  overflow: hidden;

  background: #05357d;

  color: #fff;
}

.brands-section::before {
  content: "";

  position: absolute;

  inset: 0;

  pointer-events: none;

  background:
    linear-gradient(
      126deg,
      transparent 6%,

      #0056db25 6%,

      #0056db25 16%,

      transparent 16%,

      transparent 55%,

      #0048b833 55%,

      #0048b833 66%,

      transparent 66%
    ),
    repeating-linear-gradient(
      129deg,
      transparent 0,

      transparent 95px,

      #ffffff04 96px,

      transparent 98px
    ),
    linear-gradient(100deg, #062964, #064898 55%, #041e50);
}

.brands-inner {
  display: grid;

  position: relative;

  grid-template-columns: minmax(0, 1fr) 170px;

  gap: 27px;

  align-items: center;

  padding-block: 27px 24px;
}

.brands-content h2 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 28px;

  line-height: 1.2;

  font-weight: 700;

  letter-spacing: 0.45px;

  text-align: center;

  margin-bottom: 19px;
}

.brand-grid {
  display: grid;

  grid-template-columns: repeat(10, minmax(0, 1fr));

  align-items: end;

  gap: 12px;
}

.vehicle-brand {
  display: flex;

  min-width: 0;

  flex-direction: column;

  align-items: center;

  gap: 5px;
}

.vehicle-brand img {
  width: auto;

  max-width: 47px;

  height: 32px;

  object-fit: contain;
}

.vehicle-brand span {
  font-family: Arial, sans-serif;

  font-size: 10px;

  font-weight: 700;

  text-transform: uppercase;

  line-height: 1.3;

  white-space: nowrap;
}

.vehicle-brand:last-child img {
  width: 51px;
}

.brands-tagline {
  align-self: stretch;

  display: flex;

  align-items: center;

  border-left: 1px solid #ffffff25;

  padding-left: 28px;

  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 21px;

  font-style: italic;

  font-weight: 700;

  line-height: 1.08;
}

/* ========================================

   DEFAULT - DESKTOP / TABLET

======================================== */

.brand-marquee {
  width: 100%;
}

.brand-track {
  width: 100%;
}

.brand-grid-clone {
  display: none;
}

/* About */

.about-grid {
  display: grid;

  grid-template-columns: 1.02fr 1fr;

  gap: 16px;

  align-items: center;
}

.why-us h2 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 25px;

  letter-spacing: 0.1px;
}

.feature-grid {
  display: grid;

  grid-template-columns: repeat(4, minmax(0, 1fr));

  margin-top: 31px;
}

.feature {
  position: relative;

  text-align: center;

  padding: 0 8px;
}

.feature + .feature {
  border-left: 1px solid var(--line);
}

.feature .icon {
  display: block;

  width: 39px;

  height: 39px;

  stroke-width: 1.9;

  margin: 0 auto 13px;

  color: var(--blue);
}

.feature h3 {
  font-size: 14px;

  font-weight: 700;

  line-height: 1.3;
}

.feature p {
  font-size: 10px;

  color: var(--muted);

  margin-top: 5px;

  line-height: 1.4;
}

.about-section {
  background: #f7faff;
}

.about-story {
  display: grid;

  grid-template-columns: 1.04fr 1fr;

  gap: 21px;

  min-width: 0;

  align-items: center;
}

.about-image {
  height: 229px;

  overflow: hidden;
}

.about-image img {
  width: 100%;

  height: 100%;

  object-fit: cover;

  object-position: center;

  border-radius: 6px;
}

.about-copy h3 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 24px;

  font-style: italic;

  font-weight: 700;

  line-height: 1.1;
}

.about-copy p {
  margin-top: 12px;

  font-size: 16px;

  color: var(--muted);

  line-height: 1.55;
}

.about-copy .button {
  margin-top: 15px;
}

/* Testimonials */

.testimonials {
  border-top: 1px solid var(--line);

  background: linear-gradient(#f8faff, #fff);
}

.centered {
  justify-content: center;

  text-align: center;
}

.centered h2 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 28px;
}

.review-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 18px;
}

.review-card {
  display: flex;

  align-items: flex-start;

  gap: 13px;

  padding: 22px 19px;

  background: #fff;

  border: 1px solid var(--line);

  border-radius: 7px;
}

.review-avatar {
  width: 56px;

  height: 56px;

  border-radius: 50%;

  overflow: hidden;

  flex-shrink: 0;

  display: block;
}

.review-avatar img {
  width: 100%;

  height: 100%;

  object-fit: cover;

  display: block;
}

.review-content {
  min-width: 0;

  width: 100%;
}

.review-card blockquote {
  font-size: 14px;

  color: #263755;

  line-height: 1.55;
}

.review-bottom {
  margin-top: 16px;
}

.review-person {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.stars {
  display: block;

  margin-bottom: 5px;

  color: #f1a501;

  font-size: 16px;
  line-height: 1;
  letter-spacing: 1px;

  white-space: nowrap;
}

.review-bottom h3 {
  font-size: 16px;
  font-weight: 700;
}

.review-bottom p {
  margin-top: 1px;

  font-size: 14px;

  color: var(--muted);
}

.review-dots {
  display: none;
}

/* A small contact CTA; there is no parts finder or form. */

.contact-section {
  background: #f0f5ff;

  border-top: 1px solid #e3ebf9;
}

.contact-inner {
  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 40px;
}

.contact-copy .eyebrow {
  color: var(--blue);

  font-size: 11px;

  margin-bottom: 8px;

  letter-spacing: 1px;
}

.contact-copy h2 {
  font-family: var(--font-display);

  font-stretch: condensed;

  font-size: 36px;

  font-style: italic;

  font-weight: 800;

  letter-spacing: 0;
}

.contact-copy > p:last-child {
  color: var(--muted);

  font-size: 14px;
}

.contact-actions {
  text-align: center;

  min-width: 200px;
}

.button-whatsapp {
  background: #05864c;

  border-color: #05864c;

  min-height: 47px;
}

.button-whatsapp .whatsapp-icon {
  display: block;

  width: 24px;

  height: 24px;

  object-fit: contain;

  flex-shrink: 0;
}

.button-whatsapp:hover {
  background: #067141;

  border-color: #067141;

  box-shadow: 0 7px 18px #05864c18;
}

.button-whatsapp[aria-disabled="true"] {
  cursor: not-allowed;
}

.button-whatsapp[aria-disabled="true"]:hover {
  transform: none;

  box-shadow: none;
}

.contact-status {
  margin-top: 8px;

  font-size: 12px;

  color: var(--muted);
}

.contact-email {
  display: block;

  margin-top: 7px;

  font-size: 12px;

  color: var(--blue);
}

.site-footer {
  background: #061735;

  color: #fff;
}

.footer-main {
  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 40px;

  padding-block: 25px;
}

.footer-brand img {
  width: 158px;

  height: auto;
}

.footer-brand p {
  margin-top: 0;

  font-size: 10px;

  letter-spacing: 1.2px;

  color: #b0bed5;

  text-transform: uppercase;
}

.footer-nav {
  display: flex;

  gap: 28px;

  font-size: 12px;
}

.footer-nav a {
  padding-block: 8px;

  transition: color 0.2s;
}

.footer-nav a:hover,
.back-to-top:hover {
  color: #86b3ff;
}

.footer-contact {
  text-align: right;

  color: #b0bed5;

  font-size: 11px;

  line-height: 1.7;

  max-width: 290px;
}

.footer-contact a {
  display: block;
}

.footer-bottom {
  display: flex;

  justify-content: space-between;

  align-items: center;

  gap: 15px;

  padding-block: 14px;

  border-top: 1px solid #ffffff16;

  font-size: 10px;

  color: #a6b5cd;
}

.back-to-top {
  display: flex;

  align-items: center;

  gap: 8px;
}

.back-to-top .icon {
  height: 15px;

  width: 15px;
}

/* Progressive enhancement: content is visible if JavaScript is unavailable. */

.reveal-ready .reveal {
  opacity: 0;

  transform: translateY(19px);

  transition:
    opacity 0.7s var(--ease),
    transform 0.8s var(--ease);
}

.reveal-ready .reveal.is-visible {
  opacity: 1;

  transform: none;
}

/* Tablet */

@media (max-width: 1100px) {
  .site-nav {
    gap: 20px;

    margin-right: 20px;
  }

  .hero-inner {
    min-height: 385px;
  }

  .hero-copy {
    width: 51%;
  }

  h1 {
    font-size: 54px;
  }

  .hero-benefits {
    gap: 15px;
  }

  .hero-benefits .icon {
    width: 23px;

    height: 23px;
  }

  .hero-benefits strong,
  .hero-benefits small {
    font-size: 10px;
  }

  .category-image {
    height: 107px;
  }

  .brands-inner {
    grid-template-columns: minmax(0, 1fr) 130px;

    gap: 18px;
  }

  .brand-grid {
    gap: 9px;
  }

  .brands-tagline {
    padding-left: 19px;

    font-size: 18px;
  }

  .vehicle-brand span {
    font-size: 7px;
  }

  .about-grid {
    gap: 22px;
  }

  .about-story {
    gap: 15px;
  }

  .about-copy h3 {
    font-size: 21px;
  }

  .about-copy p {
    font-size: 11px;
  }

  .about-image {
    height: 227px;
  }

  .feature {
    padding-inline: 5px;
  }

  .feature h3 {
    font-size: 11px;
  }

  .feature p {
    font-size: 9px;
  }

  .review-card {
    padding: 18px 14px;

    gap: 9px;
  }

  .review-bottom {
    flex-wrap: wrap;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: calc(100% - 40px);
  }

  .header-inner {
    gap: 20px;
  }

  .brand img {
    width: 151px;
  }

  .header-inquiry {
    margin-left: auto;
  }

  .menu-toggle {
    position: relative;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    gap: 5px;

    width: 44px;

    height: 44px;

    flex-shrink: 0;

    padding: 10px;

    background: none;

    color: var(--navy);

    border: 1px solid var(--line);

    border-radius: 4px;
  }

  .menu-toggle span {
    width: 20px;

    height: 2px;

    background: currentColor;

    border-radius: 2px;

    transition:
      transform 0.3s,
      opacity 0.2s;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;

    top: 0;
    right: 0;
    bottom: 0;

    width: min(82vw, 340px);
    height: 100dvh;

    display: flex;
    flex-direction: column;
    align-items: stretch;

    padding: 0 20px;
    gap: 10px;

    margin: 0;

    background: #fff;

    box-shadow: -16px 0 36px rgba(6, 23, 53, 0.16);

    z-index: 120;

    transform: translateX(100%);

    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;

    width: 100%;

    z-index: 1000;
  }

  /* menu 打开时覆盖整个 viewport，包括 header */
  .site-header.is-menu-open::before {
    content: "";

    position: fixed;
    inset: 0;

    z-index: 110;

    background: rgba(255, 255, 255, 0.08);

    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);

    pointer-events: none;
  }

  /* side menu 保持最上层 */
  .site-header.is-menu-open .site-nav {
    position: fixed;
    z-index: 120;
  }

  .site-header.is-menu-open .site-nav {
    transform: translateX(0);
  }

  .mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;

    min-height: var(--header-height);

    border-bottom: 1px solid #eef2f8;
  }

  .mobile-menu-logo {
    display: flex;
    align-items: center;
  }

  .mobile-menu-logo img {
    width: 100%;
    height: 36px;
    object-fit: contain;
  }

  .mobile-menu-close {
    position: relative;

    display: flex;
    align-items: center;
    justify-content: center;

    width: 42px;
    height: 42px;

    flex-shrink: 0;

    padding: 0;
    border: 0;

    background: transparent;
    color: var(--blue);

    cursor: pointer;
  }

  .mobile-menu-close span {
    position: absolute;

    left: 50%;
    top: 50%;

    width: 22px;
    height: 2px;

    background: currentColor;

    border-radius: 999px;
  }

  .mobile-menu-close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .mobile-menu-close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .nav-link {
    color: #687488;

    font-size: 14px;
    font-weight: 700;

    border-bottom: 1px solid #eef2f8;
  }

  .nav-link.is-active {
    color: var(--blue);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link:hover {
    color: var(--blue);
  }

  .menu-backdrop {
    position: fixed;
    inset: 0;

    /* 必须低过 site-header */
    z-index: 90;

    /* 不要太白，只要轻微层次 */
    background: rgba(255, 255, 255, 0.08);

    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);

    opacity: 0;
    visibility: hidden;

    transition:
      opacity 0.35s ease,
      visibility 0s linear 0.35s;
  }

  .site-header.is-menu-open + .menu-backdrop {
    opacity: 1;
    visibility: visible;

    transition:
      opacity 0.35s ease,
      visibility 0s linear 0s;
  }
  .nav-mobile-inquiry {
    display: flex;

    margin-top: auto;
    margin-bottom: 14px;

    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
  }

  .hero-inner {
    min-height: 369px;
    margin-top: 68px;
  }

  .hero-copy {
    width: 53%;
  }

  h1 {
    font-size: 38px;
  }

  .hero-description {
    font-size: 15px;
  }

  .hero-benefits {
    gap: 12px;

    margin-top: 29px;
  }

  .hero-benefits li {
    gap: 6px;
  }

  .hero-benefits strong,
  .hero-benefits small {
    font-size: 9px;
  }

  .hero-benefits .icon {
    width: 21px;

    height: 21px;
  }

  .hero-actions {
    gap: 9px;
  }

  .hero-actions .button {
    min-width: 125px;

    padding-inline: 15px;
  }

  .hero-art {
    right: -20px;

    width: 70%;
  }

  .hero-art img {
    width: 100%;
    height: 100%;

    object-fit: contain;
    object-position: center top;
  }
  
   .quality-item:hover {
    transform: translateY(0px) !important;
    border-color: none !important;
    box-shadow: none !important;
  }

  .product-quality-grid {
    grid-template-columns: 1fr;
  }
  

  .product-info-card:hover {
    transform: translateY(0px) !important;
    border-color: none !important;
    box-shadow: none !important;
  }

  .category-label {
    padding: 11px;
  }

  .category-label h3 {
    font-size: 12px;
  }

  .category-image {
    height: 88px;
  }

  .brands-inner {
    grid-template-columns: 1fr;
  }

  .brands-tagline {
    display: none;
  }

  .vehicle-brand span {
    font-size: 8px;
  }

  .about-grid {
    grid-template-columns: 1fr;

    gap: 33px;
  }

  .why-us h2,
  .section-description {
    text-align: center;
  }

  .feature-grid {
    margin-top: 25px;
  }

  .feature h3 {
    font-size: 13px;
  }

  .feature p {
    font-size: 11px;
  }

  .about-story {
    grid-template-columns: 1fr 1fr;

    gap: 26px;
  }

  .about-image {
    height: 245px;
  }

  .about-copy h3 {
    font-size: 30px;
  }

  .about-copy p {
    font-size: 14px;
  }

  .review-grid {
    display: grid;

    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 18px;
  }

  .review-card {
    display: flex;

    align-items: flex-start;

    gap: 13px;

    padding: 22px 19px;

    background: #fff;

    border: 1px solid var(--line);

    border-radius: 7px;
  }

  .review-avatar {
    width: 56px;

    height: 56px;

    border-radius: 50%;

    overflow: hidden;

    flex-shrink: 0;

    display: block;
  }

  .review-avatar img {
    width: 100%;

    height: 100%;

    object-fit: cover;

    display: block;
  }

  .review-content {
    min-width: 0;

    width: 100%;
    display: flex;
    flex-direction: column;
  }

  .review-card blockquote {
    font-size: 14px;

    color: #263755;

    line-height: 1.55;
    order: 2;
  }

  .review-bottom {
    margin-top: 0px;
    order: 1;
  }

  .review-person {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .stars {
    display: block;

    padding: 6px 0;

    color: #f1a501;

    font-size: 16px;
    line-height: 1;
    letter-spacing: 1px;

    white-space: nowrap;
    order: 3;
  }

  .review-bottom h3 {
    font-size: 16px;
    font-weight: 700;
  }

  .review-bottom p {
    margin-top: 1px;

    font-size: 14px;

    color: var(--muted);
  }

  .review-dots {
    display: none;
  }

  .contact-copy h2 {
    font-size: 32px;
  }

  .footer-main {
    gap: 25px;
  }

  .footer-nav {
    gap: 18px;
  }

  .footer-contact {
    display: none;
  }
}

/* Mobile: the same page, not a scaled-down desktop screenshot. */

@media (max-width: 600px) {
  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: clip;
  }
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;

    width: 100%;

    z-index: 1000;
  }

  /* menu 打开时，补一层覆盖整个 viewport */
  .site-header.is-menu-open::before {
    content: "";

    position: fixed;
    inset: 0;

    z-index: 110;

    background: rgba(255, 255, 255, 0.08);

    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);

    pointer-events: none;
  }

  /* side menu 一定在 overlay 上面 */
  .site-header.is-menu-open .site-nav {
    position: fixed;

    z-index: 120;
  }
  /* =========================
     TYPOGRAPHY
  ========================= */

  /* H2 = 20px */
  .section-heading h2,
  .brands-content h2,
  .why-us h2,
  .centered h2,
  .contact-copy h2,
  .product-quality-content h2,
  .product-info .section-heading h2 {
    font-size: 20px;
  }

  /* H3 = 18px */
  .product-info-card h3,
  .quality-item h3,
  .about-copy h3,
  .review-bottom h3 {
    font-size: 18px;
  }

  .feature h3 {
    font-size: 8px;
  }

  .category-label h3,
  .review-bottom h3,
  .about-copy p {
    font-size: 12px;
  }

  .review-bottom p {
    font-size: 10px;
  }

  /* P = 12px */
  .section-heading p,
  .section-description,
  .product-quality-content > p:not(.eyebrow),
  .quality-item p,
  .product-info .section-heading p,
  .product-info-card p,
  .about-copy p,
  .contact-copy > p:last-child {
    font-size: 12px;
  }

  /* =========================
     PRODUCT INFO CAROUSEL
  ========================= */

  .product-info-card {
    display: grid;

    grid-template-columns: auto 1fr;
    grid-template-areas:
      "number title"
      "number description";

    column-gap: 14px;
    row-gap: 6px;

    align-items: start;

    min-height: 0;
    padding: 16px;
  }

  .product-quality {
    padding: 72px 0;
  }

  .product-quality-grid {
    grid-template-columns: 1fr;

    gap: 42px;
  }

  .product-quality-image,
  .product-quality-image img {
    min-height: 420px;
  }

  .product-info {
    padding: 72px 0;
  }

  .product-info-grid {
    display: flex;

    gap: 14px;

    overflow-x: auto;

    overflow-y: hidden;

    scroll-snap-type: x mandatory;

    scroll-behavior: smooth;

    padding-bottom: 8px;

    scrollbar-width: none;

    -ms-overflow-style: none;
  }

  .product-info-grid::-webkit-scrollbar {
    display: none;
  }

  .product-info-card {
    flex: 0 0 88%;

    min-width: 88%;

    scroll-snap-align: start;

    scroll-snap-stop: always;
  }

  .knowP {
    margin: 10px 0 0 0;
  }

  .product-info .section-heading {
    margin-bottom: 16px;
  }

  .product-quality-image,
  .product-quality-image img {
    min-height: 200px;
    border-radius: 8px;
  }

  .product-info-number {
    grid-area: number;

    width: auto;
    height: auto;

    margin: 0;

    background: transparent;
    border-radius: 0;

    color: #005bff;

    font-family: "Montserrat", sans-serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
  }

  .product-info-card h3 {
    grid-area: title;
    margin: 0;
    line-height: 1.35;
  }

  .product-info-card p {
    grid-area: description;
    margin: 0;
    line-height: 1.6;
  }

  .product-quality-grid {
    gap: 16px;
  }

  .quality-item {
    padding: 16px;
  }

  .quality-item::before {
    margin-bottom: 10px;
  }

  .quality-item h3 {
    margin: 0 0 2px;
  }

  /* =========================
     GLOBAL MOBILE LAYOUT
  ========================= */

  :root {
    --header-height: 50px;
  }

  .container {
    width: calc(100% - 36px);
  }

  .section {
    padding-block: 16px;
  }

  .header-inner {
    gap: 12px;
  }

  .brand img {
    width: 120px;
  }

  .header-inquiry {
    display: none;
  }

  .menu-toggle {
    margin-left: auto;
    border: none;
  }

  /* =========================
     HERO
  ========================= */

  .hero-inner {
    min-height: 0;
    display: block;
    margin-top: 46px;
    padding-bottom: 0;
  }

  /* 不显示 Desktop 的 hero-parts */
  .hero-art {
    display: block;

    position: absolute;

    /* 水平居中 */
    left: 50%;
    right: auto;

    /* 调整垂直位置 */
    top: 274px;

    width: 100%;
    height: 245px;

    transform: translateX(-50%);

    z-index: 1;

    overflow: visible;

    /* Desktop 的 mask mobile 不要 */
    -webkit-mask-image: none;
    mask-image: none;
  }

  .hero-copy {
    display: block;

    position: relative;

    width: 100%;
    padding: 0;
  }

  /* =========================
     HERO IMAGE AREA
  ========================= */

  .hero-main {
    position: relative;

    width: 100%;
    min-height: 460px;

    padding: 24px 20px;

    overflow: hidden;

    border-radius: 8px;
  }

  /* 内容压在照片上面 */
  .hero-main > * {
    position: relative;
    z-index: 1;
  }

  /* Overlay */

  .hero-main > * {
    position: relative;
    z-index: 1;
  }

  .hero-copy .eyebrow {
    margin-bottom: 10px;

    color: var(--navy);

    font-size: 10px;
  }

  .hero-main h1 {
    color: var(--navy);

    font-size: clamp(38px, 10.5vw, 56px);
    line-height: 0.98;
    letter-spacing: -0.5px;
  }

  .hero-description {
    max-width: 270px;

    margin-top: 13px;

    color: rgba(var(--navy-rgb), 0.9);

    font-size: 12px;
    line-height: 1.45;
  }

  .hero-actions {
    margin-top: 18px;

    gap: 10px;
  }

  .hero-actions .button {
    min-width: 135px;
    min-height: 43px;

    font-size: 12px;
  }

  /* =========================
     BENEFITS - OUTSIDE IMAGE
  ========================= */

  .hero-benefits-wrap {
    width: 100%;

    border-bottom: 1px solid var(--line);
  }

  .hero-benefits {
    display: flex;
    justify-content: space-between;
    align-items: center;

    width: 100%;

    margin: 0;
    padding: 16px 0px;

    gap: 7px;
  }

  .hero-benefits li {
    display: flex;
    align-items: center;

    gap: 6px;
  }

  .hero-benefits .icon {
    width: 22px;
    height: 22px;

    color: var(--blue);
  }

  .hero-benefits strong,
  .hero-benefits small {
    display: block;

    font-size: 9px;
  }

  /* =========================
     SECTION HEADING
  ========================= */

  .section-heading {
    gap: 15px;

    align-items: flex-start;

    margin-bottom: 10px;
  }

  .section-heading h2 {
    font-size: 20px;
  }

  .section-heading p {
    max-width: 290px;
    line-height: 1.45;
  }

  .section-note {
    display: none;
  }
  /* =========================
     PRODUCT QUALITY
  ========================= */

  /* =========================
     CATEGORIES
  ========================= */

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));

    gap: 12px;
  }

  .category-image {
    height: auto;

    aspect-ratio: 1.8;
  }

  .category-image img {
    object-fit: contain;
  }

  .category-label {
    padding: 11px 10px;
  }

  .category-label .icon {
    width: 16px;
    height: 16px;
  }

  /* =========================
   BRANDS
========================= */

  .brands-inner {
    width: 100%;
    padding-block: 25px;

    grid-template-columns: minmax(0, 1fr);
  }

  .brands-content {
    width: 100%;
    min-width: 0;
    overflow: hidden;
  }

  /* Mobile title */
  .brands-content h2 {
    width: 100%;

    margin-bottom: 16px;

    padding-inline: 12px;

    font-size: 20px;
    line-height: 1.3;

    text-align: center;

    box-sizing: border-box;
  }

  /* Marquee visible area */
  .brand-marquee {
    position: relative;

    width: 100%;
    max-width: 100%;

    overflow: hidden;
  }

  /* Moving track */
  .brand-track {
    display: flex;
    align-items: center;

    width: max-content;

    animation: brand-marquee 24s linear infinite;
    will-change: transform;
  }

  .brand-grid {
    display: flex;

    flex-shrink: 0;

    gap: 28px;

    width: max-content;

    margin: 0;
    padding: 0 14px;

    list-style: none;
  }

  .brand-grid-clone {
    display: flex;
  }

  .vehicle-brand {
    display: flex;
    flex: 0 0 auto;

    min-width: 76px;

    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .vehicle-brand img {
    width: 42px;
    height: 30px;

    object-fit: contain;
    flex-shrink: 0;
  }

  .vehicle-brand span {
    font-size: 11px;
    white-space: nowrap;
  }

  @keyframes brand-marquee {
    from {
      transform: translateX(0);
    }

    to {
      transform: translateX(-50%);
    }
  }

  /* =========================
     ABOUT
  ========================= */

  .about-grid {
    gap: 16px;
  }

  .why-us h2,
  .section-description {
    text-align: left;
  }

  .why-us h2 {
    font-size: 20px;
  }

  .feature-grid {
    margin-top: 16px;
  }

  .feature {
    padding-inline: 5px;
  }

  .feature .icon {
    width: 24px;
    height: 24px;

    margin-bottom: 12px;
  }

  .feature h3 {
    margin-inline: auto;
  }

  .feature p {
    display: none;
  }

  .about-story {
    display: block;

    gap: 20px;
  }

  .about-image {
    height: auto;

    aspect-ratio: 1.6;

    border-radius: var(--radius);
  }

  .about-image img {
    object-position: center 44%;
  }

  .about-copy {
    padding-top: 20px;
  }

  .about-copy h3 {
    font-size: 18px;
  }

  .about-copy p {
    margin-top: 10px;
    line-height: 1.6;
  }

  .about-copy .button {
    min-height: 42px;

    padding-inline: 18px;
  }

  /* =========================
     TESTIMONIAL
  ========================= */

  .review-grid {
    display: flex;

    grid-template-columns: none;

    gap: 16px;

    overflow-x: auto;
    overflow-y: hidden;

    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;

    padding: 4px 20px;

    margin-left: -20px;
    margin-right: -20px;

    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .review-grid::-webkit-scrollbar {
    display: none;
  }

  .review-card {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);

    column-gap: 14px;
    align-items: start;

    flex: 0 0 calc(100% - 40px);
    min-width: calc(100% - 40px);

    scroll-snap-align: center;
    scroll-snap-stop: always;
  }

  .review-avatar {
    width: 56px;
    height: 56px;

    margin: 0;
  }

  .review-content {
    min-width: 0;

    display: flex;
    flex-direction: column;

    height: 100%;
  }

  .review-card blockquote {
    margin: 0;

    font-size: 12px;
    line-height: 1.55;
    order: 2;
  }

  /* 关键：永远推到底部 */
  .review-bottom {
    order: 1;
  }

  .review-person {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .stars {
    display: block;

    padding: 6px 0;

    font-size: 14px;
    line-height: 1;
    letter-spacing: 1px;
    order: 3;
  }

  .review-bottom h3 {
    margin: 0;

    font-size: 12px;
    line-height: 1.3;
  }

  .review-bottom p {
    font-size: 10px;
    line-height: 1.4;
  }

  .review-dots {
    display: flex;
    justify-content: center;
    align-items: center;

    gap: 7px;

    margin-top: 18px;
  }

  .review-dot {
    width: 7px;
    height: 7px;

    padding: 0;

    border: none;
    border-radius: 999px;

    background: #c9d4e8;

    cursor: pointer;

    transition:
      width 0.3s ease,
      background 0.3s ease;
  }

  .review-dot.is-active {
    width: 22px;

    background: #005bff;
  }

  /* =========================
     CONTACT
  ========================= */

  .contact-inner {
    flex-direction: column;

    text-align: center;

    gap: 16px;
  }

  .contact-copy > p:last-child {
    max-width: 290px;

    margin-inline: auto;
  }

  .contact-actions {
    width: 100%;
  }

  .button-whatsapp {
    width: 100%;
  }

  /* =========================
     FOOTER
  ========================= */

  .footer-main {
    flex-direction: column;

    text-align: center;

    gap: 10px;

    padding-block: 16px;
  }

  .footer-brand img {
    margin-inline: auto;
  }

  .footer-nav {
    gap: 25px;
  }

  .footer-contact {
    display: block;

    text-align: center;
  }

  .footer-bottom {
    font-size: 9px;

    padding-block: 15px;
  }

  .back-to-top {
    gap: 5px;
  }

  /* =========================
   MOBILE REVEAL
========================= */

  .reveal-ready .reveal {
    opacity: 0;

    transform: translate3d(0, 19px, 0);

    transition:
      opacity 0.7s var(--ease),
      transform 0.8s var(--ease);

    will-change: opacity, transform;

    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }

  .reveal-ready .reveal.is-visible {
    opacity: 1;

    transform: translate3d(0, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;

    transition-duration: 0.01ms !important;
  }

  .reveal-ready .reveal {
    opacity: 1;

    transform: none;
  }
}

@media print {
  .site-header {
    position: static;
  }

  .hero-art {
    -webkit-mask-image: none;

    mask-image: none;
  }

  .menu-toggle,
  .menu-backdrop,
  .back-to-top,
  .skip-link {
    display: none !important;
  }

  .reveal-ready .reveal {
    opacity: 1;

    transform: none;
  }

  body {
    -webkit-print-color-adjust: exact;

    print-color-adjust: exact;
  }
}