/* ========================================
   联动优势移动POS - 深铁灰蓝调开风格
   ======================================== */

/* CSS Variables */
:root {
  /* 品牌色系 */
  --ump-iron: #1A2228;
  --ump-iron-light: #2A3238;
  --adjust-green: #10B981;
  --instant-cyan: #06B6D4;
  
  /* 背景色 */
  --bg-page: #EBEDED;
  --bg-white: #FFFFFF;
  --bg-card: #FFFFFF;
  
  /* 文字色 */
  --text-dark: #0A0D10;
  --text-body: #334155;
  --text-light: #64748B;
  --text-muted: #94A3B8;
  
  /* 功能色 */
  --success: #10B981;
  --info: #06B6D4;
  --warning: #F59E0B;
  --danger: #EF4444;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* 字体 */
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'DM Sans', 'Noto Sans SC', sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.text-green { color: var(--adjust-green); }
.text-cyan { color: var(--instant-cyan); }
.text-iron { color: var(--ump-iron); }

/* ========================================
   Layout
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section--iron {
  background: linear-gradient(135deg, var(--ump-iron) 0%, var(--ump-iron-light) 100%);
  color: white;
}

.section--green {
  background: linear-gradient(135deg, var(--adjust-green) 0%, #059669 100%);
  color: white;
}

.section--cyan {
  background: linear-gradient(135deg, var(--instant-cyan) 0%, #0891B2 100%);
  color: white;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-white);
  transition: box-shadow var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: 0 2px 10px rgba(26, 34, 40, 0.15);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ump-iron);
}

.navbar__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--ump-iron);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1rem;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.navbar__link {
  font-weight: 500;
  color: var(--text-body);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--adjust-green);
  transition: width var(--transition-fast);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--adjust-green);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__cta {
  background: var(--adjust-green);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.navbar__cta:hover {
  background: #059669;
  transform: translateY(-1px);
}

/* Mobile Menu */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ump-iron);
  transition: all var(--transition-fast);
}

@media (max-width: 768px) {
  .navbar__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }
  
  .navbar__nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .navbar__toggle {
    display: flex;
  }
  
  .navbar__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .navbar__toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .navbar__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--ump-iron) 0%, var(--ump-iron-light) 100%);
  color: white;
  padding-top: 70px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  color: var(--adjust-green);
  margin-bottom: var(--spacing-lg);
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: white;
}

.hero__title .highlight-green {
  color: var(--adjust-green);
}

.hero__title .highlight-cyan {
  color: var(--instant-cyan);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero__visual {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-55%) translateX(10px); }
}

@media (max-width: 1024px) {
  .hero__title { font-size: 2.5rem; }
  .hero__visual { display: none; }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: var(--spacing-3xl) 0;
  }
  .hero__title { font-size: 2rem; }
  .hero__subtitle { font-size: 1rem; }
  .hero__actions { flex-direction: column; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--adjust-green) 0%, #059669 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

.btn--secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn--outline {
  background: transparent;
  color: var(--ump-iron);
  border: 2px solid var(--ump-iron);
}

.btn--outline:hover {
  background: var(--ump-iron);
  color: white;
}

.btn--cyan {
  background: linear-gradient(135deg, var(--instant-cyan) 0%, #0891B2 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
}

.btn--cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
}

.btn--lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card--iron {
  background: var(--ump-iron);
  color: white;
}

.card--green {
  background: linear-gradient(135deg, var(--adjust-green) 0%, #059669 100%);
  color: white;
}

.card--cyan {
  background: linear-gradient(135deg, var(--instant-cyan) 0%, #0891B2 100%);
  color: white;
}

.card__icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.card__icon--green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--adjust-green);
}

.card__icon--cyan {
  background: rgba(6, 182, 212, 0.1);
  color: var(--instant-cyan);
}

.card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.card__text {
  color: var(--text-body);
  line-height: 1.7;
}

.card--iron .card__text,
.card--green .card__text,
.card--cyan .card__text {
  color: rgba(255, 255, 255, 0.85);
}

/* Staggered Cards Layout */
.cards-staggered {
  display: grid;
  gap: var(--spacing-lg);
}

.cards-staggered--2 .card:first-child {
  width: 55%;
}

.cards-staggered--2 .card:last-child {
  width: 43%;
  margin-left: auto;
}

@media (max-width: 768px) {
  .cards-staggered--2 .card:first-child,
  .cards-staggered--2 .card:last-child {
    width: 100%;
    margin-left: 0;
  }
}

/* ========================================
   Feature Sections
   ======================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-grid--staggered {
  grid-template-columns: 1.2fr 1fr;
}

.feature-item {
  padding: var(--spacing-lg);
}

.feature-item__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--adjust-green);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.feature-item__number--cyan {
  color: var(--instant-cyan);
}

.feature-item__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.feature-item__text {
  color: var(--text-body);
  font-size: 0.9375rem;
  line-height: 1.7;
}

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

/* ========================================
   Split Section (Left-Right Layout)
   ======================================== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

.split__image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.split__content {
  padding: var(--spacing-lg);
}

.split__tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(16, 185, 129, 0.1);
  color: var(--adjust-green);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
}

.split__tag--cyan {
  background: rgba(6, 182, 212, 0.1);
  color: var(--instant-cyan);
}

.split__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.split__text {
  color: var(--text-body);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
  .split {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .split--reverse {
    direction: ltr;
  }
}

/* ========================================
   Comparison Table
   ======================================== */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.compare-table th,
.compare-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  border-bottom: 1px solid #E5E7EB;
}

.compare-table th {
  background: var(--ump-iron);
  color: white;
  font-weight: 600;
  font-size: 1rem;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table tr:hover td {
  background: rgba(16, 185, 129, 0.05);
}

.compare-table .highlight {
  color: var(--adjust-green);
  font-weight: 600;
}

.compare-table .check {
  color: var(--adjust-green);
  font-weight: 700;
}

.compare-table .cross {
  color: #EF4444;
}

.compare-table .partial {
  color: #F59E0B;
}

@media (max-width: 768px) {
  .compare-table {
    font-size: 0.875rem;
  }
  
  .compare-table th,
  .compare-table td {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* ========================================
   FAQ Accordion
   ======================================== */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq__question {
  width: 100%;
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-dark);
  text-align: left;
  transition: background var(--transition-fast);
}

.faq__question:hover {
  background: rgba(0, 0, 0, 0.02);
}

.faq__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
  color: var(--ump-iron);
}

.faq__item.active .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq__item.active .faq__answer {
  max-height: 300px;
}

.faq__answer-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--text-body);
  line-height: 1.8;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
  text-align: center;
  padding: var(--spacing-3xl);
  background: linear-gradient(135deg, var(--ump-iron) 0%, var(--ump-iron-light) 100%);
  color: white;
  border-radius: var(--radius-2xl);
}

.cta__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  color: white;
}

.cta__title .highlight {
  color: var(--adjust-green);
}

.cta__text {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xl);
}

.cta__actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   Page Hero (Inner Pages)
   ======================================== */
.page-hero {
  padding: 120px 0 var(--spacing-3xl);
  text-align: center;
}

.page-hero--green {
  background: linear-gradient(135deg, var(--adjust-green) 0%, #059669 100%);
  color: white;
}

.page-hero--cyan {
  background: linear-gradient(135deg, var(--instant-cyan) 0%, #0891B2 100%);
  color: white;
}

.page-hero--iron {
  background: linear-gradient(135deg, var(--ump-iron) 0%, var(--ump-iron-light) 100%);
  color: white;
}

.page-hero__title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  color: white;
}

.page-hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: linear-gradient(135deg, var(--ump-iron) 0%, var(--ump-iron-light) 100%);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
}

.footer__logo-icon {
  width: 40px;
  height: 40px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ump-iron);
  font-weight: 700;
}

.footer__desc {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  max-width: 400px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__links-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: white;
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--adjust-green);
}

.footer__bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header__tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(16, 185, 129, 0.1);
  color: var(--adjust-green);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-md);
}

.section-header__tag--cyan {
  background: rgba(6, 182, 212, 0.1);
  color: var(--instant-cyan);
}

.section-header__title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.section-header__text {
  color: var(--text-body);
  font-size: 1.0625rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Process/Steps
   ======================================== */
.process {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.process__step {
  flex: 1;
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  padding: var(--spacing-lg);
  position: relative;
}

.process__step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 40px;
  right: -20px;
  width: 40px;
  height: 2px;
  background: var(--adjust-green);
}

.process__step-number {
  width: 48px;
  height: 48px;
  background: var(--adjust-green);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin: 0 auto var(--spacing-md);
}

.process__step-number--cyan {
  background: var(--instant-cyan);
}

.process__step-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.process__step-text {
  color: var(--text-body);
  font-size: 0.9375rem;
}

@media (max-width: 768px) {
  .process {
    flex-direction: column;
    align-items: center;
  }
  
  .process__step:not(:last-child)::after {
    display: none;
  }
}

/* ========================================
   Badge
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(16, 185, 129, 0.1);
  color: var(--adjust-green);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.badge--cyan {
  background: rgba(6, 182, 212, 0.1);
  color: var(--instant-cyan);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.py-section { padding: var(--spacing-3xl) 0; }

/* Grid utilities */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.gap-lg { gap: var(--spacing-lg); }

@media (max-width: 768px) {
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
}