/* =========================================
   糖心vlog - 主样式文件
   https://www.ykhgmun.cn
   ========================================= */

/* CSS Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* =========================================
   CSS Variables
   ========================================= */
:root {
  --primary: #e8334a;
  --primary-dark: #c42038;
  --primary-light: #ffeef1;
  --secondary: #1a1a2e;
  --accent: #ff6b6b;
  --text-dark: #1a1a2e;
  --text-mid: #555;
  --text-light: #888;
  --bg-light: #f8f9fa;
  --bg-section: #fafafa;
  --border: #e8e8e8;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(232,51,74,0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --container: 1200px;
}

/* =========================================
   Layout
   ========================================= */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-dark { background: var(--secondary); color: #fff; }

.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-title {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-title span { color: var(--primary); }
.section-desc { font-size: 16px; color: var(--text-mid); max-width: 600px; margin: 0 auto; }

/* =========================================
   Header & Navigation
   ========================================= */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
}
.logo-text em { color: var(--secondary); font-style: normal; }

/* Main Nav */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}

/* Search Bar */
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
}
.search-form {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 14px;
  gap: 8px;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232,51,74,0.1);
}
.search-input {
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text-dark);
  outline: none;
  width: 160px;
}
.search-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  font-size: 16px;
  display: flex;
  align-items: center;
  padding: 0;
  transition: var(--transition);
}
.search-btn:hover { color: var(--primary); }

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* Search Bar Row (below nav) */
.search-bar-row {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-bar-row .search-form {
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
  background: #fff;
}
.search-bar-row .search-input { width: 100%; }

/* =========================================
   Banner / Hero
   ========================================= */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(26,26,46,0.95) 0%, rgba(26,26,46,0.6) 60%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 80px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,51,74,0.2);
  border: 1px solid rgba(232,51,74,0.4);
  color: #ff8fa3;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
}
.hero-badge::before { content: "▶"; font-size: 10px; }
.hero-title {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-title span { color: var(--primary); }
.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}
.hero-stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
}
.hero-stat-label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 2px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,51,74,0.4);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}
.btn-sm { padding: 10px 22px; font-size: 14px; }

/* =========================================
   Video Cards Section
   ========================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: var(--transition);
}
.video-card:hover .video-play-btn { background: rgba(0,0,0,0.4); }
.play-icon {
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,51,74,0.5);
}
.video-card:hover .play-icon { opacity: 1; transform: scale(1); }
.play-icon::after { content: "▶"; margin-left: 4px; }
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-light);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* =========================================
   About / Intro Section
   ========================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about-img-wrap img { width: 100%; height: 380px; object-fit: cover; }
.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
}
.about-content .section-header { text-align: left; margin-bottom: 28px; }
.about-desc { font-size: 16px; color: var(--text-mid); margin-bottom: 28px; line-height: 1.9; }
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
}
.value-icon { font-size: 22px; flex-shrink: 0; }
.value-title { font-size: 14px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.value-desc { font-size: 13px; color: var(--text-mid); }

/* =========================================
   Service Section
   ========================================= */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid transparent;
  text-align: center;
}
.service-card:hover {
  border-top-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.service-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon { background: var(--primary); }
.service-name { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.service-desc { font-size: 14px; color: var(--text-mid); line-height: 1.8; }

/* Process Steps */
.process-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin-top: 48px;
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 100px;
  max-width: 160px;
  text-align: center;
}
.step-num {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
}
.step-label { font-size: 14px; font-weight: 600; color: var(--text-dark); }
.step-arrow {
  font-size: 20px;
  color: var(--border);
  flex-shrink: 0;
  margin: 0 8px;
  margin-bottom: 28px;
}

/* =========================================
   Case Section
   ========================================= */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.case-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-industry {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(232,51,74,0.9);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
}
.case-body { padding: 20px; }
.case-title { font-size: 16px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.case-result { font-size: 14px; color: var(--text-mid); margin-bottom: 14px; }
.case-data {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.case-data-item { text-align: center; flex: 1; }
.case-data-num { font-size: 18px; font-weight: 800; color: var(--primary); }
.case-data-label { font-size: 12px; color: var(--text-light); }

/* =========================================
   News Section
   ========================================= */
.news-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 28px;
}
.news-featured {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.news-featured-img {
  height: 240px;
  overflow: hidden;
}
.news-featured-img img { width: 100%; height: 100%; object-fit: cover; }
.news-featured-body { padding: 24px; }
.news-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  font-weight: 600;
}
.news-title { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; line-height: 1.5; }
.news-excerpt { font-size: 14px; color: var(--text-mid); line-height: 1.8; margin-bottom: 16px; }
.news-date { font-size: 13px; color: var(--text-light); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 16px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 3px solid transparent;
}
.news-item:hover { border-left-color: var(--primary); transform: translateX(4px); }
.news-item-title { font-size: 15px; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; line-height: 1.5; }
.news-item-meta { font-size: 13px; color: var(--text-light); display: flex; gap: 12px; }

/* =========================================
   Reviews / Testimonials
   ========================================= */
.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}
.review-card:hover { box-shadow: var(--shadow-hover); }
.review-quote {
  font-size: 48px;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 12px;
  font-family: Georgia, serif;
}
.review-text { font-size: 15px; color: var(--text-mid); line-height: 1.8; margin-bottom: 20px; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.review-name { font-size: 15px; font-weight: 700; color: var(--text-dark); }
.review-company { font-size: 13px; color: var(--text-light); }
.review-stars { color: #f5a623; font-size: 14px; margin-top: 4px; }

/* =========================================
   Partners / Trust
   ========================================= */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-bottom: 48px;
}
.partner-logo {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-mid);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); }

/* =========================================
   FAQ Section
   ========================================= */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 24px;
  height: 24px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.8;
  padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 200px; padding: 0 24px 20px; }

/* =========================================
   Contact Section
   ========================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-label { font-size: 13px; color: var(--text-light); margin-bottom: 4px; }
.contact-value { font-size: 15px; font-weight: 600; color: var(--text-dark); }
.map-placeholder {
  background: var(--bg-light);
  border-radius: var(--radius);
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border);
  color: var(--text-light);
  font-size: 15px;
  text-align: center;
}

/* =========================================
   Footer
   ========================================= */
#site-footer {
  background: var(--secondary);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-icon { background: var(--primary); }
.footer-desc { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.8; margin-bottom: 20px; }
.footer-qr { display: flex; gap: 16px; }
.qr-item { text-align: center; }
.qr-box {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
  border: 1px solid rgba(255,255,255,0.15);
  text-align: center;
  line-height: 1.4;
}
.qr-label { font-size: 12px; color: rgba(255,255,255,0.5); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-social { display: flex; gap: 12px; }
.social-link {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}
.social-link:hover { background: var(--primary); color: #fff; }

/* =========================================
   Breadcrumb
   ========================================= */
.breadcrumb {
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-light); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

/* =========================================
   Page Hero (inner pages)
   ========================================= */
.page-hero {
  background: linear-gradient(135deg, var(--secondary) 0%, #16213e 100%);
  padding: 60px 0;
  text-align: center;
  color: #fff;
}
.page-hero h1 { font-size: clamp(24px, 4vw, 40px); font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.7); }

/* =========================================
   Stats Bar
   ========================================= */
.stats-bar {
  background: var(--primary);
  padding: 28px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item { color: #fff; }
.stat-num { font-size: 32px; font-weight: 800; line-height: 1; }
.stat-label { font-size: 13px; opacity: 0.85; margin-top: 6px; }

/* =========================================
   Utility Classes
   ========================================= */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.hidden { display: none; }
.show { display: block; }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1024px) {
  .service-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .main-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px; box-shadow: 0 8px 20px rgba(0,0,0,0.1); gap: 4px; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; border-radius: var(--radius-sm); }
  .menu-toggle { display: flex; }
  .header-search { display: none; }
  .hero { min-height: 480px; }
  .hero-stats { gap: 24px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-img-wrap img { height: 260px; }
  .service-grid, .case-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .about-values { grid-template-columns: 1fr; }
  .process-steps { gap: 8px; }
  .step-arrow { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 26px; }
  .video-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .partner-logos { gap: 12px; }
  .partner-logo { padding: 12px 20px; font-size: 14px; }
}