/* 金牧源乳业 - 高端响应式静态站点 */
:root {
  --primary: #1677ff;
  --primary-dark: #0a2540;
  --primary-light: #4096ff;
  --accent: #00b4d8;
  --accent-light: #48cae4;
  --cream: #f4f8fc;
  --cream-dark: #e8f0fa;
  --text: #1a2332;
  --text-muted: #5a6478;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(22, 119, 255, 0.1);
  --shadow-lg: 0 12px 48px rgba(22, 119, 255, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-display: "Georgia", "Times New Roman", serif;
  --header-h: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--alt { background: var(--white); }
.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--primary-dark);
  margin-bottom: 16px;
  line-height: 1.3;
}
.section__title-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
.section__title-link:hover {
  color: var(--primary);
}
.section__desc {
  color: var(--text-muted);
  max-width: 640px;
  font-size: 1.05rem;
  margin-bottom: 48px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(22, 119, 255, 0.08);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.logo {
  display: flex;
  align-items: center;
  gap: 20px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-dark);
}
.logo__img {
  flex-shrink: 0;
  display: block;
}
.logo__icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
}
.nav { display: flex; align-items: center; gap: 8px; }
.nav__list { display: flex; gap: 4px; }
.nav__link {
  display: block;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
  transition: all var(--transition);
}
.nav__link:hover, .nav__link.active, .nav__link--active {
  color: var(--primary);
  background: rgba(22, 119, 255, 0.06);
}
.header__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--primary);
  color: var(--white) !important;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-left: 16px;
  white-space: nowrap;
}
.header__phone:hover { background: var(--primary-dark); color: var(--white) !important; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary-dark);
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: clamp(420px, 55vh, 580px);
  display: flex;
  align-items: center;
  margin-top: var(--header-h);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 37, 64, 0.92) 0%, rgba(22, 119, 255, 0.78) 50%, rgba(64, 150, 255, 0.65) 100%);
  z-index: 1;
}
.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.hero-carousel__slide.is-active {
  opacity: 1;
  z-index: 1;
}
.hero-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 10px;
}
.hero-carousel__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.hero-carousel__dot.is-active {
  background: var(--white);
  transform: scale(1.1);
}
.hero__content {
  position: relative;
  z-index: 2;
  color: var(--white);
  max-width: 720px;
  padding: 24px 0 20px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  font-size: 0.82rem;
  margin-bottom: 12px;
  backdrop-filter: blur(8px);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.5rem);
  line-height: 1.25;
  margin-bottom: 10px;
  font-weight: 700;
}
.hero__subtitle {
  font-size: clamp(0.9rem, 1.6vw, 1.05rem);
  opacity: 0.92;
  margin-bottom: 18px;
  line-height: 1.6;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 180, 216, 0.35);
}
.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn--outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}
.btn--green {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn--green:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* Stats bar */
.stats-bar {
  background: var(--white);
  padding: 32px 0;
  box-shadow: var(--shadow);
  margin-top: -24px;
  position: relative;
  z-index: 10;
  border-radius: var(--radius-lg);
  margin-left: 24px;
  margin-right: 24px;
  max-width: calc(1200px - 48px);
  margin-inline: auto;
}
.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat__num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.stat__label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* Cards grid */
.grid { display: grid; gap: 28px; }
.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: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card__img { aspect-ratio: 4/3; overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card__img img { transform: scale(1.05); }
.card__body { padding: 28px; }
.card__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(22, 119, 255, 0.08);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.card__text { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
.card__link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.home-module-card {
  display: block;
  text-align: center;
  padding: 32px;
  text-decoration: none;
  color: inherit;
}
.home-module-card:hover {
  color: inherit;
}
.home-module-card .card__text {
  margin-bottom: 0;
}
.home-module-card__icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 12px;
}

/* Case waterfall gallery */
.case-waterfall {
  column-count: 3;
  column-gap: 20px;
}
.case-waterfall__item {
  break-inside: avoid;
  margin-bottom: 20px;
}
.case-waterfall__item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Advantages */
.advantage {
  text-align: center;
  padding: 36px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.advantage:hover { transform: translateY(-4px); }
.advantage__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--white);
}
.advantage__icon .fa {
  font-size: 1.5rem;
  color: var(--white);
}
.advantage__title { font-size: 1.1rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 10px; }
.advantage__text { font-size: 0.9rem; color: var(--text-muted); }

/* Partner logos */
.logos {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: 28px 36px;
  padding: 40px 32px;
  background: var(--cream-dark);
  border-radius: var(--radius-lg);
}
.logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  width: 148px;
  text-align: center;
}
.logo-item--link {
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition);
}
.logo-item--link:hover {
  transform: translateY(-2px);
}
.logo-item--link:hover .logo-item__name {
  color: var(--primary-dark);
}
.logo-item__img {
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 8px;
  background: var(--white);
  border: 1px solid rgba(22, 119, 255, 0.08);
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(10, 37, 64, 0.05);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.logo-item__img img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 68px;
  object-fit: contain;
  border-radius: 8px;
}
.logo-item__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1.4;
  transition: color var(--transition);
}
.logo-item:hover .logo-item__img {
  transform: translateY(-2px);
  border-color: rgba(22, 119, 255, 0.18);
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.1);
}
.logo-item:hover .logo-item__name {
  color: var(--primary-dark);
}

/* Contact strip */
.contact-strip {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  padding: 48px 0;
}
.contact-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}
.contact-strip__item h4 { font-size: 0.85rem; opacity: 0.8; margin-bottom: 8px; font-weight: 500; }
.contact-strip__item p { font-size: 1.1rem; font-weight: 600; }

/* About intro carousel */
.about-carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 3 / 2;
  background: var(--cream-dark);
}
.about-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.about-carousel__slide.is-active {
  opacity: 1;
  z-index: 1;
}
.about-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.about-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 8px;
}
.about-carousel__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.about-carousel__dot.is-active {
  background: var(--white);
  transform: scale(1.1);
}

/* About album slider */
.album-slider {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}
.album-slider__viewport {
  flex: 1;
  overflow: hidden;
}
.album-slider__track {
  display: flex;
  gap: 20px;
  transition: transform 0.4s ease;
  will-change: transform;
}
.album-slider__item {
  flex: 0 0 calc((100% - 20px) / 2);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--cream-dark);
}
.album-slider__item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.album-slider__btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--white);
  color: var(--primary);
  font-size: 1.25rem;
  line-height: 1;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.album-slider__btn:hover:not(:disabled) {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.05);
}
.album-slider__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Page hero (inner pages) */
.page-hero {
  margin-top: var(--header-h);
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--white);
  text-align: center;
}
.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 12px;
}
.page-hero__breadcrumb {
  font-size: 0.9rem;
  opacity: 0.85;
}
.page-hero__breadcrumb a { color: rgba(255,255,255,0.9); }
.page-hero__breadcrumb a:hover { color: var(--accent-light); }

/* Breadcrumb */
.breadcrumb { padding: 20px 0; font-size: 0.85rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }

/* Product detail */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-detail__gallery {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.product-detail__info h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.product-detail__model { color: var(--accent); font-weight: 600; margin-bottom: 20px; }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
}
.spec-table th, .spec-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--cream-dark);
}
.spec-table th {
  background: var(--cream);
  color: var(--primary-dark);
  font-weight: 600;
  width: 35%;
}
.content-block { margin-bottom: 40px; }
.content-block h2 {
  font-size: 1.35rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.content-block p, .content-block li { color: var(--text-muted); margin-bottom: 8px; }
.content-block ul { padding-left: 0; }
.content-block ul li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 8px;
}
.content-block ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-item__q {
  padding: 20px 24px;
  font-weight: 600;
  color: var(--primary-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item__q::after { content: "+"; font-size: 1.25rem; color: var(--accent); flex-shrink: 0; }
.faq-item.open .faq-item__q::after { content: "−"; }
.faq-item__a {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  border-top: 1px solid var(--cream-dark);
  padding-top: 16px;
}
.faq-item.open .faq-item__a { display: block; }

/* Timeline */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-light);
}
.timeline__item { position: relative; margin-bottom: 32px; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary-light);
}
.timeline__year { font-weight: 700; color: var(--primary); font-size: 1.1rem; margin-bottom: 4px; }

/* Download list */
.download-list { display: flex; flex-direction: column; gap: 16px; }
.download-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.download-item:hover { transform: translateX(6px); }
.download-item__icon {
  width: 52px;
  height: 52px;
  background: rgba(22, 119, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.download-item__info { flex: 1; }
.download-item__title { font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.download-item__meta { font-size: 0.85rem; color: var(--text-muted); }

/* Footer */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 0 24px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}
.footer__brand .logo { color: var(--white); margin-bottom: 16px; }
.footer__brand p { font-size: 0.9rem; line-height: 1.8; opacity: 0.8; }
.footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 20px;
  font-weight: 600;
}
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: rgba(255, 255, 255, 0.75); font-size: 0.9rem; }
.footer ul a:hover { color: var(--accent-light); }
.footer__contact .footer__qrcodes {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: flex-start;
  gap: 16px;
  margin-top: 20px;
  width: 100%;
}
.footer__qrcode-item {
  flex: 0 0 auto;
  text-align: center;
}
.footer__qrcodes--single .footer__qrcode-item img {
  width: 96px;
  height: 96px;
}
.footer__qrcodes--double .footer__qrcode-item img {
  width: 88px;
  height: 88px;
}
.footer__qrcode-item img {
  display: block;
  object-fit: contain;
  background: var(--white);
  border-radius: 8px;
  padding: 4px;
}
.footer__qrcode-item span {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--cream-dark), var(--white));
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow);
}
.cta__title { font-family: var(--font-display); font-size: 1.75rem; color: var(--primary-dark); margin-bottom: 12px; }
.cta__text { color: var(--text-muted); margin-bottom: 28px; }

/* Article */
.article { max-width: 800px; margin: 0 auto; }
.article h2 { font-size: 1.25rem; color: var(--primary-dark); margin: 32px 0 12px; }
.article p { margin-bottom: 16px; color: var(--text-muted); }
.article-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }

/* Responsive */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .logos { gap: 24px 28px; padding: 32px 24px; }
  .logo-item { width: 132px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .menu-toggle { display: flex; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav__list { flex-direction: column; width: 100%; }
  .nav__link { padding: 14px 16px; }
  .header__phone { margin: 12px 0 0; width: 100%; justify-content: center; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .album-slider__item { flex: 0 0 100%; }
  .case-waterfall { column-count: 2; column-gap: 12px; }
  .product-detail { grid-template-columns: 1fr; }
  .contact-strip__grid { grid-template-columns: 1fr; gap: 24px; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero { min-height: clamp(380px, 48vh, 520px); }
  .hero__content { padding: 20px 0 16px; }
  .stats-bar { margin-top: -16px; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .logos { gap: 20px 16px; padding: 28px 20px; }
  .logo-item { width: calc(50% - 8px); max-width: 148px; }
  .logo-item__img { height: 72px; }
  .download-item { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .stats-bar__grid { grid-template-columns: 1fr 1fr; }
}