/* ===== CSS Variables / Design Tokens ===== */
:root {
  --color-primary: #0089e1;
  --color-primary-dark: #006bb3;
  --color-primary-light: #e8f4fd;
  --color-primary-rgb: 0, 137, 225;
  --color-bg: #ffffff;
  --color-surface: #f5f7fa;
  --color-dark-bg: #1a2332;
  --color-text: #222222;
  --color-muted: #666666;
  --color-light-text: #999999;
  --color-border: #e8ecf1;
  --color-white: #ffffff;
  --color-success: #52c41a;
  --color-warning: #faad14;
  --color-error: #ff4d4f;

  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --container-width: 1400px;
  --gap: 24px;
  --section-spacing: 100px;
  --section-spacing-mobile: 60px;

  --transition-base: 0.3s ease;
  --transition-smooth: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-header: 0 2px 20px rgba(0,0,0,0.08);
  --radius-card: 8px;
  --radius-btn: 4px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

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

ul, ol {
  list-style: none;
}

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

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 40px;
  }
}

.section-title-wrapper {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 767px) {
  .section-title {
    font-size: 32px;
  }
  .section-title-wrapper {
    margin-bottom: 40px;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

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

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

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

.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 14px;
}

@media (max-width: 767px) {
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
}

/* ===== Header ===== */
.site-header {
  position: relative;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-white);
  transition: all var(--transition-base);
}

.header-top {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .header-top-inner {
    padding: 0 40px;
  }
}

.header-bottom {
  background: var(--color-primary);
}

.header-bottom .main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 50px;
  gap: 0;
  width: 100%;
}

@media (min-width: 768px) {
  .header-bottom .main-nav {
    padding: 0 40px;
  }
}

.header-bottom .main-nav a {
  flex: 1;
  padding: 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.header-bottom .main-nav a::after {
  display: none;
}

.header-bottom .main-nav a:hover,
.header-bottom .main-nav a.active {
  background: rgba(255, 255, 255, 0.15);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-logo img {
  height: 52px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: fit-content;
}

.logo-text-cn, .logo-text-en {
  display: block;
  width: 100%;
  text-align: justify;
  text-align-last: justify;
  white-space: nowrap;
}

.logo-text-cn {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.logo-text-en {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-muted);
  line-height: 1.2;
}



.header-search-box {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 400px;
  margin: 0 40px;
  border: 2px solid var(--color-primary);
  border-radius: 4px;
}

.search-input {
  flex: 1;
  height: 40px;
  padding: 0 16px;
  border: 2px solid var(--color-primary);
  border-right: none;
  border-radius: 4px 0 0 4px;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition-base);
}

.search-input:focus {
  border-color: var(--color-primary-dark);
}

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

.search-btn {
  height: 40px;
  padding: 0 20px;
  background: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: 0 4px 4px 0;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-base);
}

.search-btn:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.search-btn svg {
  width: 16px;
  height: 16px;
}

.header-phone-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  flex-shrink: 0;
}

.phone-label {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 2px;
}

.phone-number {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.phone-number-2 {
  font-size: 20px;
  margin-top: -4px;
}

.phone-number svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-btn);
  transition: all var(--transition-base);
  background: transparent;
  border: none;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 1023px) {
  .header-search-box {
    display: none;
  }

  .header-bottom .main-nav {
    position: fixed;
    top: 140px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 20px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    overflow-y: auto;
    height: auto;
    justify-content: flex-start;
  }

  .header-bottom .main-nav.open {
    transform: translateX(0);
  }

  .header-bottom .main-nav a {
    width: 100%;
    padding: 16px 20px;
    font-size: 16px;
    justify-content: center;
    border-radius: var(--radius-card);
    margin-bottom: 8px;
  }

  .header-bottom .main-nav a:hover,
  .header-bottom .main-nav a.active {
    background: rgba(255, 255, 255, 0.2);
  }

  .hamburger {
    display: flex;
  }

  .phone-label {
    display: none;
  }

  .phone-number {
    font-size: 16px;
  }

  .phone-number svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 767px) {
  .header-top {
    position: relative;
  }

  .header-top-inner {
    height: 56px;
    padding: 0 12px;
  }

  .site-logo {
    gap: 8px;
  }

  .site-logo img {
    height: 36px;
  }

  .logo-text {
    display: none;
  }

  .header-bottom {
    height: 0;
    overflow: hidden;
  }

  .header-bottom .main-nav {
    position: fixed;
    top: 56px;
  }

  .hamburger {
    display: flex;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    z-index: 10;
  }

  .hamburger span {
    background: var(--color-primary);
    width: 20px;
  }

  .phone-label {
    display: none !important;
  }

  .phone-number {
    font-size: 13px;
    gap: 4px;
  }

  .phone-number svg {
    width: 14px;
    height: 14px;
  }

  .header-phone-box {
    flex-shrink: 0;
    margin-right: 44px;
  }
}

/* ===== Hero Section ===== */
.hero-section {
  position: relative;
  height: 750px;
  display: flex;
  align-items: center;
  padding-top: 0;
  overflow: hidden;
  background: url('../images/banner-bg.jpg') center center / cover no-repeat;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  z-index: 0;
}

.hero-grid {
  display: flex;
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 20px;
}

@media (min-width: 768px) {
  .hero-grid {
    padding: 80px 40px;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-content .btn-outline {
  color: var(--color-white);
  border-color: var(--color-white);
}

.hero-content .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-text);
}

.hero-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  border-radius: 20px;
}

.hero-title {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero-title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Products Section ===== */
.products-section {
  padding: var(--section-spacing) 0;
  background: var(--color-surface);
}

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

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

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.product-card-image {
  position: relative;
  width: 100%;
  padding-top: 75%;
  overflow: hidden;
  background: var(--color-surface);
}

.product-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.08);
}

.product-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.06));
  pointer-events: none;
}

.product-card-body {
  padding: 24px 20px 28px;
}

.product-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-card-desc {
  font-size: 14px;
  color: var(--color-light-text);
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card .btn {
  width: 100%;
}

@media (max-width: 1023px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
  .products-section {
    padding: var(--section-spacing-mobile) 0;
  }
}

/* ===== About Section ===== */
.about-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}

.about-image-wrapper img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  display: block;
}

.about-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.10), transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.about-experience {
  position: absolute;
  bottom: 30px;
  right: 30px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 20px 28px;
  border-radius: var(--radius-card);
  text-align: center;
  z-index: 2;
  box-shadow: 0 8px 24px rgba(var(--color-primary-rgb), 0.30);
}

.about-experience-number {
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
}

.about-experience-text {
  font-size: 13px;
  margin-top: 6px;
  opacity: 0.9;
}

.about-content {

}

.about-content .section-tag {
  margin-bottom: 16px;
}

.about-content .section-title {
  text-align: left;
  margin-bottom: 24px;
}

.about-content .section-subtitle {
  text-align: left;
  margin: 0 0 12px;
  font-weight: 500;
  color: var(--color-text);
}

.about-text {
  color: var(--color-muted);
  line-height: 1.9;
  margin-bottom: 20px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.about-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
}

.about-feature-item svg {
  width: 18px;
  height: 18px;
  fill: var(--color-primary);
  flex-shrink: 0;
}

@media (max-width: 1023px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image-wrapper img {
    height: 360px;
  }

  .about-experience {
    bottom: 20px;
    right: 20px;
    padding: 16px 20px;
  }

  .about-experience-number {
    font-size: 32px;
  }
  .about-section {
    padding: var(--section-spacing-mobile) 0;
  }
}

@media (max-width: 575px) {
  .about-features {
    grid-template-columns: 1fr;
  }
}

/* ===== Cases Section ===== */
.cases-section {
  padding: var(--section-spacing) 0;
  background: var(--color-surface);
}

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

.case-card {
  display: block;
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  background: var(--color-white);
  color: inherit;
  text-decoration: none;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.case-card-img {
  width: 100%;
  padding-top: 66%;
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
}

.case-card-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-card:hover .case-card-img img {
  transform: scale(1.06);
}

.case-card-body {
  padding: 24px 20px 28px;
}

.case-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 10px;
}

.case-card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-base);
}

.case-card-link:hover {
  gap: 10px;
}

.case-card-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-base);
}

.case-card-link:hover svg {
  transform: translateX(4px);
}

@media (max-width: 1023px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
  .cases-section {
    padding: var(--section-spacing-mobile) 0;
  }
}

/* ===== News Section ===== */
.news-section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.news-card {
  display: block;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}

.news-card:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(var(--color-primary-rgb), 0.20);
}

.news-card-image {
  width: 100%;
  padding-top: 56.25%;
  position: relative;
  overflow: hidden;
}

.news-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-card-image img {
  transform: scale(1.06);
}

.news-card-body {
  padding: 24px 20px 28px;
  transition: all var(--transition-base);
}

.news-card-date {
  font-size: 12px;
  color: var(--color-light-text);
  margin-bottom: 10px;
  transition: color var(--transition-base);
}

.news-card:hover .news-card-date {
  color: rgba(255,255,255,0.7);
}

.news-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 10px;
  transition: color var(--transition-base);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-card-title {
  color: var(--color-white);
}

.news-card-excerpt {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  transition: color var(--transition-base);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-card-excerpt {
  color: rgba(255,255,255,0.8);
}

.news-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-base);
}

.news-card:hover .news-card-link {
  color: var(--color-white);
}

.news-card-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-base);
}

.news-card-link:hover svg {
  transform: translateX(4px);
}

@media (max-width: 1023px) {
  .news-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .news-list {
    grid-template-columns: 1fr;
  }
  .news-section {
    padding: var(--section-spacing-mobile) 0;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,0.7);
}

.footer-main {
  padding: 80px 0 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
}


.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}


.footer-heading {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-primary);
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: all var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.6;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-item span {
  color: rgba(255,255,255,0.6);
}

.footer-contact-item strong {
  color: var(--color-white);
  font-weight: 500;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 575px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-main {
    padding: 60px 0 40px;
  }
}

/* ===== Scroll Animation ===== */
[data-aos] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-up"] {
  transform: translateY(40px);
}

[data-aos="fade-left"] {
  transform: translateX(-40px);
}

[data-aos="fade-right"] {
  transform: translateX(40px);
}

[data-aos="fade-up"].aos-animate,
[data-aos="fade-left"].aos-animate,
[data-aos="fade-right"].aos-animate {
  opacity: 1;
  transform: translate(0, 0);
}

[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }
[data-aos-delay="500"] { transition-delay: 0.5s; }
[data-aos-delay="600"] { transition-delay: 0.6s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  [data-aos] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.30);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 999;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 575px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

/* ===== Search Overlay ===== */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-overlay-inner {
  position: relative;
  width: 90%;
  max-width: 600px;
}

.search-close {
  position: absolute;
  top: -60px;
  right: 0;
  font-size: 36px;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.search-close:hover {
  opacity: 1;
}

.search-input {
  width: 100%;
  padding: 16px 20px;
  font-size: 20px;
  border: none;
  border-bottom: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  color: #fff;
  outline: none;
  transition: border-color 0.3s;
}

.search-input:focus {
  border-color: var(--color-primary);
}

.search-input::placeholder {
  color: rgba(255,255,255,0.4);
}