/* =========================================
   ĐẤT SÀI GÒN CAFÉ — DESIGN SYSTEM v2.0
   Tone màu: Light / Trắng kem — Đỏ & Vàng theo thương hiệu
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Public+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap');

/* ─── CSS CUSTOM PROPERTIES ─── */
:root {
  /* ══ BRAND COLORS — từ logo Đất Sài Gòn ══ */
  /* Primary: Vàng cam đặc trưng của logo */
  --color-primary:        #D4930A;
  --color-primary-dark:   #A8740A;
  --color-primary-light:  #F5C200;
  --color-primary-50:     rgba(212, 147, 10, 0.08);
  --color-primary-100:    rgba(212, 147, 10, 0.15);

  /* Red: Màu chữ đỏ đặc trưng của logo */
  --color-red:            #CC1111;
  --color-red-dark:       #A50D0D;
  --color-red-50:         rgba(204, 17, 17, 0.08);

  /* Brown: Viền logo nâu đậm */
  --color-brown:          #6B2A2A;
  --color-brown-mid:      #8B4513;
  --color-brown-light:    #C07A3A;

  /* ══ BACKGROUNDS — Light theme ══ */
  --color-bg:             #FFFFFF;
  --color-bg-secondary:   #FAFAF8;
  --color-bg-warm:        #FEF9F0;
  --color-bg-cream:       #F7F3EC;

  /* ══ SURFACE ══ */
  --color-surface:        #F4F1EC;
  --color-surface-2:      #EBE5DC;
  --color-surface-3:      #DDD5C8;

  /* ══ TEXT ══ */
  --color-text:           #1C1C1C;
  --color-text-secondary: #555555;
  --color-text-muted:     #8C8C8C;
  --color-text-light:     #AAAAAA;
  --color-text-white:     #FFFFFF;

  /* ══ BORDERS ══ */
  --color-border:         #DDD5C8;
  --color-border-light:   #EDE8DF;
  --color-border-dark:    #C4B8A8;
  --color-border-accent:  rgba(212, 147, 10, 0.35);

  /* ══ STATUS ══ */
  --color-success:        #2E7D32;
  --color-warning:        #E65100;
  --color-error:          #CC1111;

  /* ══ TYPOGRAPHY ══ */
  --font-display:   'Playfair Display', Georgia, serif;
  --font-body:      'Public Sans', -apple-system, sans-serif;

  /* ══ SPACING ══ */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* ══ RADIUS ══ */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* ══ SHADOWS ══ */
  --shadow-xs:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.10);
  --shadow-md:  0 6px 24px rgba(0,0,0,0.12);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.14);
  --shadow-glow-gold: 0 4px 24px rgba(212, 147, 10, 0.25);
  --shadow-glow-red:  0 4px 24px rgba(204, 17, 17, 0.20);

  /* ══ TRANSITIONS ══ */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   500ms ease;

  /* ══ LAYOUT ══ */
  --container-max:  1400px;
  --container-pad:  clamp(1rem, 4vw, 4rem);
  --header-height:  72px;
}

/* ─── RESET & BASE ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ─── TYPOGRAPHY ─── */
.display {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

h1, .h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 600;
  line-height: 1.3;
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.body-lg  { font-size: 1.1rem; line-height: 1.75; }
.body     { font-size: 1rem;   line-height: 1.65; }
.body-sm  { font-size: 0.875rem; line-height: 1.55; }
.caption  {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ─── LAYOUT ─── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section { padding: var(--space-5xl) 0; }

/* ─── BUTTON SYSTEM ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.8rem 1.8rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-red);
  color: #fff;
  border-color: var(--color-red);
}
.btn-primary:hover {
  background: var(--color-red-dark);
  border-color: var(--color-red-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-red);
}

.btn-gold {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-gold:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-gold);
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border-color: var(--color-border-dark);
}
.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-red);
  color: var(--color-red);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-red);
  border-color: var(--color-red);
}
.btn-outline:hover {
  background: var(--color-red);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-gold:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-text {
  background: none;
  border-color: transparent;
  color: var(--color-red);
  padding: 0;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}
.btn-text:hover {
  color: var(--color-red-dark);
  gap: var(--space-md);
}

.btn-lg { padding: 1rem 2.4rem; font-size: 0.85rem; }
.btn-sm { padding: 0.5rem 1.2rem; font-size: 0.72rem; }

/* ─── SECTION LABEL ─── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: var(--space-lg);
}

.section-label::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--color-red);
  border-radius: 2px;
}

/* ─── DIVIDER ─── */
.divider {
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin: var(--space-lg) 0;
}

/* ══════════════════════════════════════════════
   HEADER — Giống web datsaigon.com.vn
   Nền trắng, chữ đen, logo hình ảnh thật
══════════════════════════════════════════════ */


/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* Logo hình ảnh thật */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

/* Fallback text logo nếu không có ảnh */
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-main {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-red);
  letter-spacing: 0.02em;
}

.logo-sub {
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-top: 1px;
}

/* NAV */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
  height: 100%;
}

.nav-link {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 3px;
  background: var(--color-red);
  border-radius: 2px 2px 0 0;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.nav-link:hover { color: var(--color-red); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--color-red); }
.nav-link.active::after { transform: scaleX(1); }

/* HEADER ACTIONS */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0.5rem;
  transition: color var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.header-icon-btn:hover {
  color: var(--color-red);
  background: var(--color-red-50);
}

.cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--color-red);
  color: #fff;
  font-size: 0.58rem;
  font-weight: 700;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
}

.header-hotline {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-red);
  padding: 0.4rem 0.8rem;
  background: var(--color-red-50);
  border-radius: var(--radius-full);
  border: 1px solid rgba(204,17,17,0.15);
  white-space: nowrap;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: var(--space-xs);
}

/* ══════════════════════════════════════════════
   HERO SECTION
══════════════════════════════════════════════ */
.hero {
  position: relative;
  height: calc(100vh - var(--header-height));
  min-height: 580px;
  max-height: 820px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-cream);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.04);
  animation: heroZoom 10s ease-out forwards;
}

@keyframes heroZoom {
  from { transform: scale(1.07); }
  to   { transform: scale(1.0); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(255, 248, 224, 0.92) 0%,
    rgba(255, 248, 224, 0.70) 40%,
    rgba(255, 248, 224, 0.15) 100%
  );
}

.hero-overlay-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-bg), transparent);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: var(--space-xl);
  padding: 0.4rem 1rem;
  background: rgba(204, 17, 17, 0.08);
  border: 1px solid rgba(204, 17, 17, 0.2);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: fadeSlideUp 0.7s ease 0.2s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeSlideUp 0.7s ease 0.4s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--color-red);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeSlideUp 0.7s ease 0.6s forwards;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeSlideUp 0.7s ease 0.8s forwards;
}

.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  opacity: 0;
  animation: fadeSlideUp 0.7s ease 1.0s forwards;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-red);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: 0;
  animation: fadeIn 1s ease 1.4s forwards;
}

.hero-scroll span {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-red), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ══════════════════════════════════════════════
   BRAND INTRO
══════════════════════════════════════════════ */
.brand-intro {
  background: var(--color-bg);
}

.brand-intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5xl);
  align-items: center;
}

.brand-intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.brand-intro-image img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.brand-intro-image:hover img {
  transform: scale(1.03);
}

.brand-intro-tag {
  position: absolute;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--color-red);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: #fff;
}

.brand-intro-tag .number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.brand-intro-tag .label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

/* ══════════════════════════════════════════════
   CATEGORIES
══════════════════════════════════════════════ */
.categories {
  background: var(--color-bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.category-card-image {
  height: 380px;
  overflow: hidden;
}

.category-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover .category-card-image img {
  transform: scale(1.07);
}

.category-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(28, 28, 28, 0.85) 0%,
    rgba(28, 28, 28, 0.3) 50%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
}

.category-card-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: 4px;
}

.category-card-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.category-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  opacity: 0;
  transform: translateY(6px);
  transition: all var(--transition-base);
}

.category-card:hover .category-card-link {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════
   FEATURED PRODUCTS
══════════════════════════════════════════════ */
.featured-products {
  background: var(--color-bg);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.product-card:hover {
  border-color: var(--color-border-dark);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.product-card-image {
  position: relative;
  height: 260px;
  overflow: hidden;
  background: var(--color-surface);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 0.28rem 0.7rem;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
}

.badge-bestseller {
  background: var(--color-red);
  color: #fff;
}

.badge-new {
  background: var(--color-primary);
  color: #fff;
}

.product-card-body {
  padding: var(--space-lg) var(--space-xl);
}

.product-card-category {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.product-card-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.product-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.product-card-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.btn-quick-cart {
  width: 36px;
  height: 36px;
  min-width: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-quick-cart:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.product-card-actions .btn {
  padding: 0.48rem 0.85rem;
  font-size: 0.82rem;
  white-space: nowrap;
}

.product-price { display: flex; flex-direction: column; gap: 2px; }

.price-sale {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-red);
  line-height: 1;
}

.price-original {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

/* ══════════════════════════════════════════════
   BRAND STORY
══════════════════════════════════════════════ */
.brand-story {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.brand-story-bg {
  position: absolute;
  inset: 0;
}

.brand-story-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-story-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    95deg,
    rgba(20, 8, 8, 0.92) 0%,
    rgba(20, 8, 8, 0.65) 50%,
    rgba(20, 8, 8, 0.25) 100%
  );
}

.brand-story-content {
  position: relative;
  z-index: 1;
  max-width: 580px;
}

.brand-story-quote {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  font-style: italic;
  font-weight: 400;
  color: #fff;
  line-height: 1.5;
  margin: var(--space-xl) 0;
}

.brand-story-quote strong {
  color: var(--color-primary-light);
  font-style: normal;
  font-weight: 700;
}

/* ══════════════════════════════════════════════
   VALUES
══════════════════════════════════════════════ */
.values {
  background: var(--color-bg-warm);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.value-card {
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-red), var(--color-primary));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.value-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--color-border-dark);
}

.value-card:hover::before {
  transform: scaleX(1);
}

.value-icon {
  width: 56px;
  height: 56px;
  background: var(--color-red-50);
  border: 1px solid rgba(204, 17, 17, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 1.5rem;
  transition: all var(--transition-base);
}

.value-card:hover .value-icon {
  background: var(--color-red);
  border-color: var(--color-red);
}

.value-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.value-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ══════════════════════════════════════════════
   KNOWLEDGE & NEWS
══════════════════════════════════════════════ */
.knowledge { background: var(--color-bg); }
.news      { background: var(--color-bg-secondary); }

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.article-card:hover {
  border-color: var(--color-border-dark);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.article-card-image {
  height: 210px;
  overflow: hidden;
  background: var(--color-surface);
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-card-image img {
  transform: scale(1.05);
}

.article-card-body { padding: var(--space-xl); }

.article-card-category {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.article-card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}

.article-card:hover .article-card-title {
  color: var(--color-red);
}

.article-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.article-date { font-size: 0.75rem; color: var(--color-text-muted); }

/* ══════════════════════════════════════════════
   SOCIAL GALLERY
══════════════════════════════════════════════ */
.social-gallery {
  background: var(--color-bg-cream);
  padding: var(--space-5xl) 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.gallery-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img { transform: scale(1.07); }

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(204, 17, 17, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-overlay span { font-size: 1.8rem; }

.social-links {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.65rem 1.4rem;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
  text-transform: uppercase;
}

.social-link:hover {
  border-color: var(--color-red);
  color: var(--color-red);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ══════════════════════════════════════════════
   CTA SECTION
══════════════════════════════════════════════ */
.cta-section {
  padding: var(--space-5xl) 0;
  background: var(--color-red);
}

.cta-inner {
  text-align: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-lg);
  line-height: 1.15;
}

.cta-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 500px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.btn-white {
  background: #fff;
  color: var(--color-red);
  border: 2px solid #fff;
  font-weight: 700;
}

.btn-white:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-brown);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
.site-footer {
  background: #1C1C1C;
  color: #D0CCC6;
  padding-top: var(--space-5xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-4xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-main { color: var(--color-primary-light); }
.footer-brand .logo-sub  { color: rgba(255,255,255,0.5); }

.footer-desc {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.footer-social { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.footer-social-btn {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.footer-social-btn:hover {
  background: var(--color-red);
  border-color: var(--color-red);
  color: #fff;
}

.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: var(--space-xl);
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-md); }

.footer-link {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-link:hover { color: var(--color-primary-light); }

.footer-contact-item {
  display: flex;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-md);
  align-items: flex-start;
  line-height: 1.55;
}

.footer-contact-item .icon {
  color: var(--color-primary-light);
  flex-shrink: 0;
  margin-top: 1px;
}

.footer-bottom {
  padding: var(--space-xl) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

/* ══════════════════════════════════════════════
   MOBILE STICKY BAR
══════════════════════════════════════════════ */
.mobile-sticky {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: #fff;
  border-top: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-xl);
  justify-content: center;
  gap: var(--space-md);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.08);
}

/* ══════════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════════ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ══════════════════════════════════════════════
   MOBILE NAV OVERLAY
══════════════════════════════════════════════ */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: #fff;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 2px solid var(--color-red);
  background: var(--color-red-50);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex: 1;
}

.mobile-nav-link {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-red);
  background: var(--color-red-50);
  padding-left: calc(var(--space-xl) + 0.5rem);
}

.close-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: var(--space-xs);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.close-btn:hover {
  color: var(--color-red);
  background: var(--color-red-50);
}

/* ══════════════════════════════════════════════
   SEARCH OVERLAY
══════════════════════════════════════════════ */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.search-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.search-form {
  width: 100%;
  max-width: 560px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  border-bottom: 2.5px solid var(--color-red);
  padding-bottom: var(--space-md);
}

.search-form input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--color-text);
}

.search-form input::placeholder {
  color: var(--color-text-muted);
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 1280px) {
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .brand-intro-inner { grid-template-columns: 1fr; gap: var(--space-3xl); }
  .brand-intro-image img { height: 380px; }
  .categories-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
  .nav-link { padding: 0 0.75rem; font-size: 0.78rem; }
  .header-hotline { display: none; }
}

@media (max-width: 768px) {
  :root {
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --header-height: 60px;
  }

  .nav-menu { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero { height: calc(100svh - var(--header-height)); min-height: 500px; }
  .hero-cta { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .hero-stats { gap: var(--space-xl); }

  .categories-grid { grid-template-columns: 1fr; }
  .category-card-image { height: 260px; }

  .products-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .product-card-image { height: 180px; }
  .product-card-body { padding: var(--space-md); }

  .values-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .articles-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

  .mobile-sticky { display: flex; }
  .site-footer { padding-bottom: 80px; }
}

@media (max-width: 430px) {
  .products-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.2rem; }
  .hero-stats { flex-direction: column; gap: var(--space-md); }
}