/* ===== 开云体育官方网站 - 主样式文件 ===== */
/* 版权所有 © 2026 开云体育 | vip-login-kaiyunapp.com */

/* ===== 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: #1a1a2e;
  background: #fff;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .25s; }
a:hover { color: #e8500a; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== CSS Variables ===== */
:root {
  --primary: #0a2e6e;
  --accent: #e8500a;
  --accent2: #f7a800;
  --light-bg: #f4f7fb;
  --border: #e0e6ef;
  --text-main: #1a1a2e;
  --text-sub: #5a6a85;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(10,46,110,0.10);
  --radius: 10px;
  --transition: all .3s ease;
}

/* ===== Container ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: .02em;
}
.section-sub {
  text-align: center;
  color: var(--text-sub);
  font-size: 1rem;
  margin-bottom: 48px;
}
.section-title span { color: var(--accent); }

/* ===== Top Bar ===== */
.top-bar {
  background: var(--primary);
  color: #fff;
  font-size: .82rem;
  padding: 6px 0;
  text-align: right;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: #fff; opacity: .85; }
.top-bar a:hover { opacity: 1; }

/* ===== Header / Navigation ===== */
.site-header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(10,46,110,.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .03em;
}
.site-logo .logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 60%, var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  font-weight: 900;
}
.site-logo .logo-text { color: var(--primary); }
.site-logo .logo-text em { color: var(--accent); font-style: normal; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%; right: 50%;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--accent);
  background: rgba(232,80,10,.06);
}
.main-nav a:hover::after, .main-nav a.active::after {
  left: 16px; right: 16px;
}

.nav-btn {
  background: var(--accent);
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 24px !important;
  font-weight: 600 !important;
}
.nav-btn:hover { background: #c43d00; color: #fff !important; }
.nav-btn::after { display: none !important; }

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 2px;
}

/* ===== Search Bar ===== */
.search-bar-wrap {
  background: var(--light-bg);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: center;
}
.search-form {
  display: flex;
  width: 100%;
  max-width: 600px;
  background: #fff;
  border: 2px solid var(--border);
  border-radius: 30px;
  overflow: hidden;
  transition: border-color .25s;
}
.search-form:focus-within { border-color: var(--accent); }
.search-form input {
  flex: 1;
  border: none;
  outline: none;
  padding: 9px 20px;
  font-size: .95rem;
  background: transparent;
  color: var(--text-main);
}
.search-form button {
  background: var(--accent);
  color: #fff;
  padding: 0 22px;
  font-size: .95rem;
  font-weight: 600;
  border-radius: 0 28px 28px 0;
  transition: background .25s;
}
.search-form button:hover { background: #c43d00; }

/* ===== Hero Banner / Slider ===== */
.hero-slider { position: relative; overflow: hidden; height: 560px; }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
  background-size: cover;
  background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10,46,110,.82) 0%, rgba(10,46,110,.45) 55%, rgba(10,46,110,.15) 100%);
}
.hero-content {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  padding: 0 60px;
  max-width: 680px;
  color: #fff;
}
.hero-tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: .8rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(0,0,0,.3);
}
.hero-content p {
  font-size: 1.1rem;
  opacity: .9;
  margin-bottom: 28px;
  line-height: 1.6;
}
.hero-advantages {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-advantages span {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: .85rem;
  backdrop-filter: blur(4px);
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 13px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(232,80,10,.35);
}
.btn-primary:hover { background: #c43d00; color: #fff; transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: #fff;
  padding: 13px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(255,255,255,.15); color: #fff; }

.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}
.slider-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.5);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.slider-dot.active { background: var(--accent); width: 28px; border-radius: 5px; }

/* ===== Stats Bar ===== */
.stats-bar {
  background: var(--primary);
  color: #fff;
  padding: 28px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item h3 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent2);
  line-height: 1;
}
.stat-item p { font-size: .9rem; opacity: .85; margin-top: 4px; }

/* ===== Video Grid Section ===== */
.video-section { background: var(--light-bg); }
.video-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.video-tab {
  padding: 8px 22px;
  border-radius: 24px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-sub);
  background: #fff;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}
.video-tab.active, .video-tab:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 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: 0 12px 36px rgba(10,46,110,.15); }
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #1a1a2e;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 56px; height: 56px;
  background: rgba(232,80,10,.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,80,10,.5);
}
.video-play-btn svg { fill: #fff; width: 22px; height: 22px; margin-left: 3px; }
.video-card:hover .video-play-btn { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px; right: 10px;
  background: rgba(0,0,0,.72);
  color: #fff;
  font-size: .75rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-badge {
  position: absolute;
  top: 10px; left: 10px;
  background: var(--accent);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-info h4 {
  font-size: .97rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 14px;
  font-size: .8rem;
  color: var(--text-sub);
  flex-wrap: wrap;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== About Section ===== */
.about-section { background: #fff; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-img-wrap { position: relative; border-radius: 16px; overflow: hidden; }
.about-img-wrap img { width: 100%; border-radius: 16px; }
.about-badge {
  position: absolute;
  bottom: 24px; right: -20px;
  background: var(--accent);
  color: #fff;
  padding: 16px 24px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(232,80,10,.3);
}
.about-badge strong { display: block; font-size: 2rem; font-weight: 900; line-height: 1; }
.about-badge span { font-size: .82rem; opacity: .9; }
.about-text h2 { font-size: 1.9rem; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.about-text p { color: var(--text-sub); margin-bottom: 20px; line-height: 1.8; }
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 24px;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--light-bg);
  border-radius: 10px;
}
.value-icon {
  width: 38px; height: 38px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.value-item h5 { font-size: .9rem; font-weight: 700; color: var(--primary); margin-bottom: 2px; }
.value-item p { font-size: .8rem; color: var(--text-sub); margin: 0; }

/* ===== Services Section ===== */
.services-section { background: var(--light-bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid transparent;
  text-align: center;
}
.service-card:hover {
  transform: translateY(-6px);
  border-top-color: var(--accent);
  box-shadow: 0 12px 36px rgba(10,46,110,.15);
}
.service-icon {
  width: 68px; height: 68px;
  background: linear-gradient(135deg, var(--primary), #1a4a9e);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
  color: #fff;
}
.service-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.service-card p { color: var(--text-sub); font-size: .92rem; line-height: 1.7; margin-bottom: 16px; }
.service-tags { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.service-tag {
  background: rgba(10,46,110,.08);
  color: var(--primary);
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}

/* ===== Cases Section ===== */
.cases-section { background: #fff; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  background: #fff;
}
.case-card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(10,46,110,.15); }
.case-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-industry {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--primary);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
}
.case-body { padding: 20px; }
.case-body h3 { font-size: 1rem; font-weight: 700; color: var(--text-main); margin-bottom: 8px; line-height: 1.4; }
.case-body p { font-size: .88rem; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px; }
.case-result {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: var(--accent);
  font-weight: 600;
}

/* ===== News Section ===== */
.news-section { background: var(--light-bg); }
.news-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
}
.news-featured {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
  transition: var(--transition);
}
.news-featured:hover { transform: translateY(-4px); }
.news-featured-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.news-featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-featured:hover .news-featured-img img { transform: scale(1.04); }
.news-featured-body { padding: 24px; }
.news-cat {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.news-featured-body h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-main); margin-bottom: 10px; line-height: 1.4; }
.news-featured-body p { font-size: .9rem; color: var(--text-sub); line-height: 1.7; }
.news-date { font-size: .8rem; color: var(--text-sub); margin-top: 12px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  display: flex;
  gap: 14px;
  background: #fff;
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.news-item:hover { transform: translateX(4px); }
.news-item-img { width: 90px; height: 68px; border-radius: 6px; overflow: hidden; flex-shrink: 0; }
.news-item-img img { width: 100%; height: 100%; object-fit: cover; }
.news-item-body { flex: 1; }
.news-item-body h4 { font-size: .9rem; font-weight: 700; color: var(--text-main); margin-bottom: 4px; line-height: 1.4; }
.news-item-body p { font-size: .8rem; color: var(--text-sub); line-height: 1.5; }
.news-item-date { font-size: .75rem; color: var(--text-sub); margin-top: 4px; }

/* ===== Reviews Section ===== */
.reviews-section { background: #fff; }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--light-bg);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px; right: 20px;
  font-size: 4rem;
  color: var(--accent);
  opacity: .18;
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.review-stars { color: var(--accent2); font-size: 1rem; margin-bottom: 12px; }
.review-card p { font-size: .92rem; color: var(--text-main); line-height: 1.7; margin-bottom: 16px; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  flex-shrink: 0;
}
.review-user-info strong { display: block; font-size: .9rem; font-weight: 700; color: var(--text-main); }
.review-user-info span { font-size: .78rem; color: var(--text-sub); }

/* ===== FAQ Section ===== */
.faq-section { background: var(--light-bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(10,46,110,.06);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-weight: 600;
  color: var(--primary);
  font-size: .97rem;
  transition: background .2s;
}
.faq-question:hover { background: var(--light-bg); }
.faq-icon {
  width: 24px; height: 24px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform .3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .25s;
  padding: 0 24px;
  color: var(--text-sub);
  font-size: .92rem;
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* ===== Partners Section ===== */
.partners-section { background: #fff; }
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  align-items: center;
  margin-bottom: 48px;
}
.partner-logo {
  background: var(--light-bg);
  border-radius: 10px;
  padding: 18px 12px;
  text-align: center;
  font-weight: 700;
  color: var(--text-sub);
  font-size: .85rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); background: #fff; }
.partner-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.process-step { position: relative; }
.process-step::after {
  content: '→';
  position: absolute;
  top: 22px; right: -14px;
  color: var(--accent);
  font-size: 1.2rem;
}
.process-step:last-child::after { display: none; }
.process-num {
  width: 48px; height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin: 0 auto 12px;
}
.process-step h4 { font-size: .92rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.process-step p { font-size: .8rem; color: var(--text-sub); }

/* ===== Contact Section ===== */
.contact-section { background: var(--light-bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info h3 { font-size: 1.5rem; font-weight: 700; color: var(--primary); margin-bottom: 24px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 44px; height: 44px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item strong { display: block; font-size: .9rem; font-weight: 700; color: var(--primary); }
.contact-item span { font-size: .88rem; color: var(--text-sub); }
.map-placeholder {
  background: #e8eef7;
  border-radius: 12px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  font-size: .9rem;
  border: 2px dashed var(--border);
  margin-top: 20px;
}
.contact-form-wrap h3 { font-size: 1.5rem; font-weight: 700; color: var(--primary); margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .88rem; font-weight: 600; color: var(--text-main); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 11px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: .92rem;
  color: var(--text-main);
  font-family: inherit;
  transition: border-color .25s;
  background: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea { height: 110px; resize: vertical; }
.btn-submit {
  width: 100%;
  background: var(--accent);
  color: #fff;
  padding: 13px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}
.btn-submit:hover { background: #c43d00; }

/* ===== Footer ===== */
.site-footer {
  background: #0a1a3a;
  color: rgba(255,255,255,.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .site-logo { color: #fff; margin-bottom: 16px; }
.footer-brand .site-logo .logo-text { color: #fff; }
.footer-brand p { font-size: .88rem; line-height: 1.8; opacity: .75; margin-bottom: 20px; }
.footer-qrcodes { display: flex; gap: 16px; }
.qrcode-item { text-align: center; }
.qrcode-box {
  width: 80px; height: 80px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
  font-size: .65rem;
  color: var(--primary);
  font-weight: 700;
  text-align: center;
  padding: 4px;
}
.qrcode-item span { font-size: .75rem; opacity: .7; }
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(255,255,255,.1);
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: .88rem;
  opacity: .75;
  transition: opacity .2s;
}
.footer-col ul li a:hover { opacity: 1; color: var(--accent2); }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.social-btn {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  transition: background .25s;
}
.social-btn:hover { background: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .82rem;
  opacity: .65;
}
.footer-bottom a { opacity: 1; }
.footer-bottom a:hover { color: var(--accent2); }

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: var(--light-bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-sub);
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb .current { color: var(--primary); font-weight: 600; }

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #1a4a9e 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-hero h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 1.05rem; opacity: .85; max-width: 600px; margin: 0 auto; }

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-8 { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-8 { margin-bottom: 32px; }
.tag {
  display: inline-block;
  background: rgba(10,46,110,.08);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  margin-right: 6px;
  margin-bottom: 6px;
}
.highlight { color: var(--accent); }
.divider {
  width: 60px; height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin: 0 auto 24px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-content { padding: 0 40px; max-width: 580px; }
  .hero-content h1 { font-size: 2.2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-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) {
  .hero-slider { height: 420px; }
  .hero-content { padding: 0 24px; max-width: 100%; }
  .hero-content h1 { font-size: 1.7rem; }
  .hero-content p { font-size: .95rem; }
  .main-nav { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: #fff; padding: 16px; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; }
  .nav-toggle { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .about-badge { right: 0; }
  .news-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-process { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.6rem; }
  .about-values { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-slider { height: 360px; }
  .hero-content h1 { font-size: 1.4rem; }
  .hero-btns { flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item h3 { font-size: 1.7rem; }
}