/* =============================================
   木铭建材 MUMING — Minimal Bilingual
   Black & White Design System 2026
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-1: #FAFAFA;
  --color-gray-2: #F5F5F5;
  --color-gray-3: #E5E5E5;
  --color-gray-4: #D4D4D4;
  --color-gray-5: #A3A3A3;
  --color-gray-6: #6F6F6F;
  --color-gray-7: #525252;
  --color-gray-8: #404040;
  --color-gray-9: #262626;

  --font-display: 'Noto Serif SC', 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --font-body: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  --max-width: 1280px;
  --nav-height: 64px;
  --radius-sm: 0.625rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;
  --transition-slow: 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--color-white);
  color: var(--color-black);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-black);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 400; }
p { color: var(--color-gray-6); line-height: 1.7; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-6);
  margin-bottom: var(--space-sm);
  display: inline-block;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-gray-6);
  line-height: 1.7;
  max-width: 640px;
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.section {
  padding: var(--space-3xl) 0;
  position: relative;
}
.section--alt { background: var(--color-gray-1); }
.section--dark {
  background: var(--color-black);
  color: var(--color-white);
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--color-white); }
.section--dark p { color: rgba(255,255,255,0.55); }
.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-2xl);
}
.section__header h2 { margin-bottom: var(--space-md); }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  z-index: 1000;
  transition: all var(--transition-normal);
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-black);
  letter-spacing: -0.02em;
}
.nav__logo span {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--color-gray-6);
  text-transform: uppercase;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.nav__link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-gray-6);
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}
.nav__link:hover { color: var(--color-black); }
.nav__link--active { color: var(--color-black); }
.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}
.nav__cta:hover { transform: scale(1.03); }

/* Language Toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 32px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-black);
  background: rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-toggle:hover {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-black);
  transition: var(--transition-fast);
}

@media (max-width: 900px) {
  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-lg);
    gap: 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  }
  .nav__links.is-open { display: flex; }
  .nav__link {
    font-size: 1rem;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    width: 100%;
  }
  .nav__cta { margin-top: var(--space-sm); width: 100%; }
  .nav__mobile-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-black);
}
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.05) 40%, rgba(0,0,0,0.4) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-lg) var(--space-2xl);
  max-width: 900px;
}
.hero__badge {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-md);
}
.hero__title {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}
.hero__title .highlight { color: var(--color-gray-5); font-style: italic; }
.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-xl);
  font-weight: 400;
  line-height: 1.7;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.hero__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero — inner pages */
.hero--inner {
  min-height: 60vh;
  background: var(--color-white);
}
.hero--inner .hero__bg { opacity: 0.25; }
.hero--inner .hero__overlay {
  background: linear-gradient(to bottom, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0.9) 100%);
}
.hero--inner .hero__content { color: var(--color-black); }
.hero--inner .hero__title { color: var(--color-black); }
.hero--inner .hero__badge { color: var(--color-gray-6); }
.hero--inner .hero__subtitle { color: var(--color-gray-6); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2.25rem;
  font-size: 0.9375rem;
  font-weight: 400;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
  font-family: var(--font-body);
}
.btn--primary {
  background: var(--color-black);
  color: var(--color-white);
}
.btn--primary:hover { transform: scale(1.03); }
.btn--ghost {
  background: transparent;
  color: var(--color-black);
  border-color: rgba(0,0,0,0.2);
}
.btn--ghost:hover { border-color: var(--color-black); transform: scale(1.03); }
.btn--ghost-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn--ghost-white:hover { border-color: var(--color-white); transform: scale(1.03); }
.btn--sm { padding: 0.5rem 1.25rem; font-size: 0.8125rem; }
.btn--lg { padding: 1rem 2.75rem; font-size: 1rem; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid rgba(0,0,0,0.04);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}
.card__image {
  position: relative;
  overflow: hidden;
}
.card__image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.card:hover .card__image img { transform: scale(1.05); }
.card__body { padding: var(--space-lg); }
.card__tag {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-6);
  margin-bottom: 0.5rem;
  display: block;
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-black);
  margin-bottom: 0.375rem;
}
.card__desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.6;
}

/* ---------- Grids ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.feature { text-align: center; padding: var(--space-md); }
.feature__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-2);
  border-radius: 50%;
  font-size: 1.5rem;
}
.feature__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.feature__desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.6;
}
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } }

/* ---------- Testimonials ---------- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.testimonial {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid rgba(0,0,0,0.04);
}
.testimonial__quote {
  font-family: var(--font-display);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-black);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.testimonial__author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.testimonial__avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-gray-2);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
}
.testimonial__name { font-weight: 600; font-size: 0.875rem; }
.testimonial__company { font-size: 0.8125rem; color: var(--color-gray-6); }

@media (max-width: 900px) { .testimonials { grid-template-columns: 1fr; } }

/* ---------- Cert Strip ---------- */
.cert-strip {
  background: var(--color-white);
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(0,0,0,0.06);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.cert-strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.cert-item__icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-gray-1);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}
.cert-item__text { font-size: 0.8125rem; font-weight: 600; color: var(--color-black); }
.cert-item__sub { font-size: 0.75rem; color: var(--color-gray-6); }

/* ---------- Category Cards ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.category-card {
  position: relative;
  min-height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: flex-end;
}
.category-card__bg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.category-card:hover .category-card__bg { transform: scale(1.05); }
.category-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.05) 100%);
}
.category-card__content {
  position: relative;
  z-index: 1;
  padding: var(--space-xl);
  color: var(--color-white);
}
.category-card__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}
.category-card__desc {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-sm);
  max-width: 360px;
}
.category-card__link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  transition: color var(--transition-fast);
}
.category-card:hover .category-card__link { color: var(--color-white); }
@media (max-width: 768px) { .category-grid { grid-template-columns: 1fr; } .category-card { min-height: 300px; } }

/* ---------- Product Cards ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.product-card {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition-normal);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}
.product-card__image { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.product-card__image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.product-card:hover .product-card__image img { transform: scale(1.05); }
.product-card__badge {
  position: absolute;
  top: var(--space-sm); left: var(--space-sm);
  background: var(--color-black);
  color: var(--color-white);
  font-size: 0.625rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.product-card__body { padding: var(--space-lg); }
.product-card__category {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-gray-6);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}
.product-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.product-card__desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}
.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-black);
  transition: gap var(--transition-fast);
}
.product-card:hover .product-card__link { gap: 0.625rem; }
@media (max-width: 900px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .product-grid { grid-template-columns: 1fr; } }

/* ---------- Contact Cards ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.contact-card {
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  text-align: center;
}
.contact-card__icon {
  width: 48px; height: 48px;
  background: var(--color-gray-1);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 1.25rem;
}
.contact-card__label {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-gray-6);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.contact-card__value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.contact-card__desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.6;
}
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(0,0,0,0.08); }
.faq-item:first-child { border-top: 1px solid rgba(0,0,0,0.08); }
.faq-item__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-md) 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-black);
  text-align: left;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}
.faq-item__question:hover { color: var(--color-gray-6); }
.faq-item__icon {
  font-size: 1.25rem;
  color: var(--color-gray-6);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  margin-left: var(--space-sm);
}
.faq-item.is-open .faq-item__icon { transform: rotate(45deg); }
.faq-item__answer { display: none; padding-bottom: var(--space-md); }
.faq-item.is-open .faq-item__answer { display: block; }
.faq-item__answer p { font-size: 0.9375rem; color: var(--color-gray-6); line-height: 1.8; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: var(--space-md); }
.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-gray-8);
  margin-bottom: 0.375rem;
}
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  border: 1.5px solid var(--color-gray-3);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-black);
  transition: border-color var(--transition-fast);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-black);
}
.form-textarea { min-height: 120px; resize: vertical; }

/* ---------- Footer ---------- */
.footer {
  background: var(--color-gray-1);
  padding: var(--space-2xl) 0 var(--space-lg);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-black);
  margin-bottom: 0.25rem;
}
.footer__brand-sub {
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-6);
  margin-bottom: var(--space-sm);
}
.footer__brand-desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.7;
  max-width: 280px;
}
.footer__heading {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray-6);
  margin-bottom: var(--space-sm);
}
.footer__links li { margin-bottom: 0.5rem; }
.footer__link {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  transition: color var(--transition-fast);
}
.footer__link:hover { color: var(--color-black); }
.footer__bottom {
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer__copyright {
  font-size: 0.75rem;
  color: var(--color-gray-6);
}
.footer__social {
  display: flex;
  gap: var(--space-sm);
}
.footer__social a {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  transition: color var(--transition-fast);
}
.footer__social a:hover { color: var(--color-black); }

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .footer__brand { grid-column: 1 / -1; }
}

/* ---------- Scroll Reveal Animations ---------- */
.anim-fade, .anim-fade-d1, .anim-fade-d2, .anim-fade-d3 {
  opacity: 0;
}
.anim-fade.is-visible { animation: animFadeUp 0.8s ease-out forwards; }
.anim-fade-d1.is-visible { animation: animFadeUp 0.8s ease-out 0.15s forwards; }
.anim-fade-d2.is-visible { animation: animFadeUp 0.8s ease-out 0.3s forwards; }
.anim-fade-d3.is-visible { animation: animFadeUp 0.8s ease-out 0.45s forwards; }

@keyframes animFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Wizard ---------- */
.wizard-section { background: var(--color-gray-1); padding: var(--space-3xl) 0; }
.wizard {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.wizard__header { text-align: center; margin-bottom: var(--space-xl); }
.wizard__progress {
  height: 4px;
  background: var(--color-gray-3);
  border-radius: 2px;
  margin-bottom: var(--space-xl);
  overflow: hidden;
}
.wizard__progress-bar {
  height: 100%;
  background: var(--color-black);
  transition: width 0.4s ease;
  width: 0%;
}
.wizard__step-label {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.wizard__question {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}
.wizard__options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.wizard__option {
  border: 2px solid var(--color-gray-3);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-white);
  font-size: 0.95rem;
  color: var(--color-black);
  font-weight: 500;
}
.wizard__option:hover { border-color: var(--color-black); background: rgba(0,0,0,0.02); }
.wizard__option.is-selected { border-color: var(--color-black); background: rgba(0,0,0,0.04); font-weight: 700; }
.wizard__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-3);
}
.wizard__step-dots { display: flex; gap: 6px; }
.wizard__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-gray-3);
  transition: all var(--transition-fast);
}
.wizard__dot.is-active { background: var(--color-black); }
.wizard__dot.is-done { background: var(--color-gray-6); }

.wizard__result { text-align: center; padding: var(--space-lg) 0; }
.wizard__result h4 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
  color: var(--color-black);
}
.wizard__result p {
  max-width: 480px;
  margin: 0 auto var(--space-lg);
  color: var(--color-gray-6);
}
.result-products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-sm);
  text-align: left;
  margin-bottom: var(--space-lg);
}
.result-product {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  border-left: 4px solid var(--color-black);
}
.result-product__name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
  color: var(--color-black);
}
.result-product__desc {
  font-size: 0.82rem;
  color: var(--color-gray-6);
  line-height: 1.5;
}

/* ---------- Guide Items ---------- */
.guide-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.guide-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.04);
}
.guide-item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.guide-item:hover img { transform: scale(1.02); }
.guide-item__body { padding: var(--space-md); }
.guide-item__read-time {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  margin-bottom: 0.5rem;
}
.guide-item__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-black);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}
.guide-item__excerpt {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.guide-item__key {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.guide-item__key-list {
  font-size: 0.8125rem;
  color: var(--color-gray-6);
  line-height: 1.8;
  padding-left: 1.1rem;
  margin-bottom: var(--space-md);
}
.guide-item__toggle {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-black);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  padding: 0;
  background: none;
  border: none;
  transition: gap var(--transition-fast);
}
.guide-item__toggle:hover { gap: 0.6rem; }
.guide-item__full {
  display: none;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-2);
}
.guide-item.is-expanded .guide-item__full { display: block; }
.guide-item__full h4 { font-size: 1rem; margin-bottom: var(--space-sm); color: var(--color-black); }
.guide-item__full p { font-size: 0.875rem; color: var(--color-gray-6); line-height: 1.8; margin-bottom: var(--space-sm); }
.guide-item__full p strong { color: var(--color-black); }
.guide-item__close {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  margin-top: var(--space-sm);
  cursor: pointer;
  display: block;
  padding: 0;
  background: none;
  border: none;
}
.guide-item__close:hover { color: var(--color-black); }

@media (max-width: 768px) { .guide-list { grid-template-columns: 1fr; } }

/* ---------- Trust List ---------- */
.trust-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.trust-item {
  padding: var(--space-lg);
  background: var(--color-white);
  border-left: 3px solid var(--color-black);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.trust-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.trust-item__desc {
  font-size: 0.9375rem;
  color: var(--color-gray-6);
  line-height: 1.7;
}
@media (max-width: 768px) { .trust-list { grid-template-columns: 1fr; } }

/* ---------- Team Grid ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
.team-item {
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid rgba(0,0,0,0.04);
}
.team-item__avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-gray-2);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
}
.team-item__name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.25rem;
}
.team-item__role {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  margin-bottom: 0.75rem;
}
.team-item__desc {
  font-size: 0.875rem;
  color: var(--color-gray-6);
  line-height: 1.7;
}
@media (max-width: 768px) { .team-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Cert Grid ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.cert-item--card {
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid rgba(0,0,0,0.04);
}
.cert-item--card img {
  width: 72px; height: 72px;
  object-fit: contain;
  margin: 0 auto var(--space-sm);
}
.cert-item__name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.4rem;
}
.cert-item__desc {
  font-size: 0.8125rem;
  color: var(--color-gray-6);
  line-height: 1.6;
}
@media (max-width: 768px) { .cert-grid { grid-template-columns: 1fr; } }

/* ---------- Case Cards ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.04);
}
.case-card__image-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.case-card__image-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.case-card:hover .case-card__image-wrap img { transform: scale(1.02); }
.case-card__body { padding: var(--space-md); }
.case-card__meta {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  margin-bottom: 0.5rem;
}
.case-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.case-card__desc {
  font-size: 0.9375rem;
  color: var(--color-gray-6);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.case-card__highlight {
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--color-black);
  line-height: 1.7;
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-black);
  margin-bottom: var(--space-md);
}
.case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: var(--space-md);
}
.case-card__tag {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  background: var(--color-gray-1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}
.case-card__products {
  background: var(--color-gray-1);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
}
.case-card__products h4 {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-6);
  margin-bottom: 0.4rem;
}
.case-card__products p {
  font-size: 0.875rem;
  color: var(--color-gray-6);
}
@media (max-width: 768px) { .cases-grid { grid-template-columns: 1fr; } }

/* ---------- Info Grid ---------- */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.info-block__eyebrow {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-gray-6);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.info-block__title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--color-black);
  margin-bottom: var(--space-md);
}
.info-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.info-list__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.info-list__item:last-child { border-bottom: none; }
.info-list__label {
  font-size: 0.875rem;
  color: var(--color-gray-6);
}
.info-list__value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-black);
}
@media (max-width: 768px) { .info-grid { grid-template-columns: 1fr; } }

/* ---------- Product Category Items ---------- */
.cat-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.cat-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.cat-item:first-child { border-top: 1px solid rgba(0,0,0,0.06); }
.cat-item__visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-gray-2);
}
.cat-item__visual img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.cat-item:hover .cat-item__visual img { transform: scale(1.03); }
.cat-item__icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  background: var(--color-gray-1);
}
.cat-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}
.cat-item__desc {
  font-size: 0.9375rem;
  color: var(--color-gray-6);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.cat-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: var(--space-md);
}
.cat-tag {
  font-size: 0.75rem;
  color: var(--color-gray-6);
  background: var(--color-gray-1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}
.cat-tag--link {
  background: var(--color-black);
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
.cat-tag--link:hover { opacity: 0.85; }
.cat-item--reverse { direction: rtl; }
.cat-item--reverse > * { direction: ltr; }

@media (max-width: 768px) {
  .cat-item { grid-template-columns: 1fr; gap: var(--space-md); }
  .cat-item--reverse { direction: ltr; }
}

/* ---------- Story ---------- */
.story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.story p {
  font-size: 1.0625rem;
  color: var(--color-gray-6);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.story img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.story__highlight {
  color: var(--color-black);
  font-weight: 700;
}
@media (max-width: 768px) { .story { grid-template-columns: 1fr; } }

/* ---------- Bottom CTA ---------- */
.bottom-cta {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-3xl) 0;
  text-align: center;
}
.bottom-cta h2 {
  color: var(--color-white);
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--space-md);
}
.bottom-cta p {
  color: rgba(255,255,255,0.55);
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  font-size: 1.0625rem;
}
.bottom-cta__contact {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}
.bottom-cta__contact-item .phone {
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--color-white);
  margin-bottom: 0.25rem;
}
.bottom-cta__contact-item .label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }