/* ========================================
   开云体育官方网站 - 主样式表
   go-login-kaiyunapp.com
   ======================================== */

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

:root {
  --primary: #0d2b6b;
  --secondary: #f47920;
  --accent: #1a56db;
  --dark: #0a1628;
  --light: #f5f7fa;
  --text: #333;
  --text-light: #666;
  --white: #fff;
  --border: #e0e6ef;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(13,43,107,0.10);
  --shadow-hover: 0 8px 32px rgba(13,43,107,0.18);
  --transition: all 0.3s ease;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); background: var(--white); line-height: 1.7; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* ========================================
   TOP BAR
   ======================================== */
.top-bar {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  padding: 6px 0;
  text-align: center;
}
.top-bar a { color: var(--secondary); }

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.site-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}
.site-logo .brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 1px;
}
.site-logo .brand-text span { color: var(--secondary); }

.main-nav ul {
  display: flex;
  gap: 4px;
}
.main-nav ul li a {
  color: rgba(255,255,255,0.88);
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  display: block;
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
  background: var(--secondary);
  color: var(--white);
}

.header-cta {
  background: var(--secondary);
  color: var(--white) !important;
  padding: 10px 22px !important;
  border-radius: 24px !important;
  font-weight: 700 !important;
  font-size: 14px !important;
}
.header-cta:hover { background: #e06810 !important; transform: translateY(-1px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  width: 26px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========================================
   SEARCH BAR
   ======================================== */
.search-bar-wrap {
  background: #f0f4fa;
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-bar-inner form {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--primary);
  border-radius: 28px;
  overflow: hidden;
  width: 100%;
  max-width: 560px;
}
.search-bar-inner input {
  flex: 1;
  padding: 9px 18px;
  border: none;
  outline: none;
  font-size: 14px;
  background: transparent;
  color: var(--text);
}
.search-bar-inner button {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 9px 22px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button:hover { background: var(--secondary); }
.search-hint { font-size: 13px; color: var(--text-light); }

/* ========================================
   HERO BANNER
   ======================================== */
.hero-banner {
  position: relative;
  min-height: 580px;
  overflow: hidden;
  background: var(--dark);
}
.hero-slider { position: relative; width: 100%; height: 580px; }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,43,107,0.82) 0%, rgba(10,22,40,0.55) 100%);
}
.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--white);
  width: 90%;
  max-width: 860px;
  z-index: 2;
}
.hero-badge {
  display: inline-block;
  background: var(--secondary);
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.hero-content h1 {
  font-size: clamp(28px, 5vw, 54px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.hero-content h1 span { color: var(--secondary); }
.hero-content p {
  font-size: clamp(15px, 2vw, 19px);
  opacity: 0.92;
  margin-bottom: 32px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.hero-advantages {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-advantages span {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: var(--secondary);
  color: var(--white);
  padding: 14px 36px;
  border-radius: 32px;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 18px rgba(244,121,32,0.4);
  border: none;
  cursor: pointer;
  display: inline-block;
}
.btn-primary:hover { background: #e06810; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(244,121,32,0.5); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--white);
  padding: 13px 34px;
  border-radius: 32px;
  font-size: 16px;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,0.7);
  transition: var(--transition);
  display: inline-block;
}
.btn-outline:hover { background: rgba(255,255,255,0.15); color: var(--white); }

.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}
.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.slider-dot.active { background: var(--secondary); transform: scale(1.3); }

/* ========================================
   STATS BAR
   ======================================== */
.stats-bar {
  background: var(--primary);
  padding: 20px 0;
}
.stats-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.stat-item {
  text-align: center;
  color: var(--white);
  border-right: 1px solid rgba(255,255,255,0.15);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 32px;
  font-weight: 900;
  color: var(--secondary);
  line-height: 1;
}
.stat-label { font-size: 13px; opacity: 0.8; margin-top: 4px; }

/* ========================================
   SECTION COMMONS
   ======================================== */
.section { padding: 72px 0; }
.section-alt { background: var(--light); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-header { text-align: center; margin-bottom: 52px; }
.section-tag {
  display: inline-block;
  background: rgba(244,121,32,0.12);
  color: var(--secondary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 16px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-header h2 {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
}
.section-header p {
  font-size: 16px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   VIDEO GRID
   ======================================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.video-card {
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 60px;
  height: 60px;
  background: rgba(244,121,32,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  z-index: 2;
}
.play-btn::after {
  content: '';
  border-left: 22px solid var(--white);
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  margin-left: 4px;
}
.video-card:hover .play-btn { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 60%);
}
.video-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--secondary);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  z-index: 3;
}
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 12px;
  background: rgba(0,0,0,0.7);
  color: var(--white);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 3;
}
.video-info { padding: 16px; }
.video-info h3 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.4; }
.video-meta {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--text-light);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-img { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-hover); }
.about-img img { width: 100%; height: 380px; object-fit: cover; }
.about-content h2 { font-size: 34px; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.about-content h2 span { color: var(--secondary); }
.about-content p { color: var(--text-light); margin-bottom: 20px; line-height: 1.8; }
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}
.value-item {
  background: var(--light);
  border-radius: var(--radius);
  padding: 16px;
  border-left: 4px solid var(--secondary);
}
.value-item h4 { font-size: 14px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.value-item p { font-size: 13px; color: var(--text-light); margin: 0; }

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid transparent;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-top-color: var(--secondary);
}
.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.service-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ========================================
   CASES SECTION
   ======================================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.case-img { aspect-ratio: 16/9; overflow: hidden; }
.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-body { padding: 20px; }
.case-tag {
  display: inline-block;
  background: rgba(13,43,107,0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.case-body h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 10px; line-height: 1.4; }
.case-result { font-size: 13px; color: var(--text-light); }
.case-result strong { color: var(--secondary); }

/* ========================================
   NEWS SECTION
   ======================================== */
.news-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
}
.news-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.news-img { overflow: hidden; }
.news-img img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s; }
.news-card:hover .news-img img { transform: scale(1.05); }
.news-card.featured .news-img img { height: 260px; }
.news-body { padding: 20px; }
.news-cat {
  display: inline-block;
  background: var(--secondary);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.news-body h3 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 10px; line-height: 1.5; }
.news-body p { font-size: 13px; color: var(--text-light); line-height: 1.7; }
.news-date { font-size: 12px; color: var(--text-light); margin-top: 12px; }

/* ========================================
   REVIEWS SECTION
   ======================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--white);
  border-radius: 12px;
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 72px;
  color: rgba(244,121,32,0.1);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.review-stars { color: #f5a623; font-size: 16px; margin-bottom: 12px; }
.review-text { font-size: 14px; color: var(--text); line-height: 1.8; margin-bottom: 18px; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.review-name { font-size: 14px; font-weight: 700; color: var(--primary); }
.review-role { font-size: 12px; color: var(--text-light); }

/* ========================================
   PARTNERS SECTION
   ======================================== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  align-items: center;
}
.partner-logo {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 12px;
  text-align: center;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-light);
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow); }

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--white);
}
.faq-question {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { background: rgba(13,43,107,0.04); }
.faq-question.open { background: var(--primary); color: var(--white); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(244,121,32,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--secondary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-question.open .faq-icon { background: rgba(255,255,255,0.2); color: var(--white); transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}
.faq-answer.open { max-height: 200px; padding: 16px 24px 20px; }

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info h3 { font-size: 24px; font-weight: 800; color: var(--primary); margin-bottom: 20px; }
.contact-items { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--light);
  border-radius: var(--radius);
}
.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-text strong { font-size: 14px; color: var(--primary); display: block; margin-bottom: 2px; }
.contact-text span { font-size: 13px; color: var(--text-light); }
.map-placeholder {
  background: linear-gradient(135deg, #e8f0fe, #f0f4ff);
  border-radius: 12px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border);
  font-size: 15px;
  color: var(--text-light);
  flex-direction: column;
  gap: 10px;
}
.map-placeholder span { font-size: 40px; }

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .site-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 13px; 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: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-light);
  margin-bottom: 6px;
  font-weight: 600;
}
.qr-item span { font-size: 11px; color: rgba(255,255,255,0.5); }
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--secondary);
  display: inline-block;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
  color: var(--white);
  text-decoration: none;
}
.social-btn:hover { background: var(--secondary); color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: var(--secondary); }

/* ========================================
   BREADCRUMB
   ======================================== */
.breadcrumb {
  background: var(--light);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 13px;
  color: var(--text-light);
}
.breadcrumb-inner a { color: var(--accent); }
.breadcrumb-inner span { margin: 0 6px; }

/* ========================================
   PAGE HERO (inner pages)
   ======================================== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
  padding: 60px 0;
  text-align: center;
  color: var(--white);
}
.page-hero h1 { font-size: clamp(26px, 4vw, 42px); font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.85; max-width: 600px; margin: 0 auto; }

/* ========================================
   MOBILE RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header-inner { height: 60px; }
  .main-nav { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--primary); padding: 16px; z-index: 999; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav ul li a { padding: 12px 16px; }
  .hamburger { display: flex; }
  .hero-slider { height: 460px; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.15); padding-bottom: 12px; }
  .stat-item:last-child, .stat-item:nth-child(3) { border-bottom: none; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .hero-advantages { gap: 8px; }
  .hero-advantages span { font-size: 12px; padding: 4px 12px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .about-values { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #e53e3e;
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
}
.live-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--white);
  border-radius: 50%;
  animation: pulse 1.2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Lazy load fade-in */
img[data-src] { opacity: 0; transition: opacity 0.4s; }
img.loaded { opacity: 1; }

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  z-index: 999;
  transition: var(--transition);
}
.scroll-top.show { display: flex; }
.scroll-top:hover { background: var(--secondary); transform: translateY(-3px); }