/* k707 - POS机网站模板样式 */

:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --secondary: #ff6b35;
  --dark: #1a1a2e;
  --gray: #666;
  --light: #f5f6fa;
  --white: #fff;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --radius: 8px;
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif; color: #333; line-height: 1.6; background: #fff; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* ========== Top Bar ========== */
.topbar {
  background: #ff6b35;
  border-bottom: 1px solid #e07828;
  font-size: 13px;
  color: #fff;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}
.topbar-left { display: flex; align-items: center; gap: 20px; }
.topbar-left span { display: flex; align-items: center; gap: 5px; }
.topbar-left svg { width: 14px; height: 14px; color: rgba(255,255,255,0.7); }
.topbar-right { display: flex; align-items: center; gap: 15px; }
.topbar-right a { color: #fff; transition: color 0.3s; }
.topbar-right a:hover { color: rgba(255,255,255,0.7); }
.topbar-right span { color: rgba(255,255,255,0.5); }

/* ========== Header ========== */
.header {
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  position: relative;
  z-index: 999;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
  flex-shrink: 0;
}
.logo svg { width: 36px; height: 36px; color: var(--primary); }

/* Nav */
.nav { display: flex; align-items: center; gap: 0; height: 100%; }
.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}
.nav-item > a {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 70px;
  padding: 0 20px;
  font-size: 15px;
  color: var(--dark);
  transition: all 0.3s;
  position: relative;
}
.nav-item > a:hover,
.nav-item > a.active {
  color: #fff;
  background: #ff6b35;
}
.nav-item > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: #ff6b35;
  transform: scaleX(0);
  transition: transform 0.3s;
}
.nav-item > a:hover::after,
.nav-item > a.active::after { transform: scaleX(1); }

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--white);
  border: 1px solid #eee;
  border-top: 2px solid #ff6b35;
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  display: none;
  z-index: 1000;
}
.nav-item:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--dark);
  transition: all 0.2s;
  border-bottom: 1px solid #f5f5f5;
}
.nav-dropdown a:last-child { border-bottom: none; }
.nav-dropdown a:hover { background: #fff3ed; color: #ff6b35; padding-left: 22px; }

/* Arrow for items with children */
.nav-item > a .arrow {
  width: 10px;
  height: 10px;
  transition: transform 0.3s;
}
.nav-item:hover > a .arrow { transform: rotate(180deg); }

.header-right { display: flex; align-items: center; gap: 15px; }
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 16px;
}
.header-phone svg { width: 18px; height: 18px; }

/* ========== Banner ========== */
.banner {
  position: relative;
  overflow: hidden;
  height: 480px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  margin-top: 0;
}
.banner-slider { height: 100%; }
.banner-slide {
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;
}
.banner-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
}
.banner-content { position: relative; z-index: 1; padding: 0 20px; }
.banner h2 { font-size: 44px; font-weight: 700; margin-bottom: 15px; text-shadow: 0 2px 10px rgba(0,0,0,0.3); }
.banner p { font-size: 20px; opacity: 0.9; margin-bottom: 30px; }
.banner-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--primary);
  color: #fff;
  border-radius: 30px;
  font-size: 16px;
  transition: all 0.3s;
}
.banner-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26,115,232,0.4);
}
.banner-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}
.banner-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s;
}
.banner-dot.active { background: var(--primary); width: 30px; border-radius: 6px; }

/* ========== Section Title ========== */
.section-header { text-align: center; margin-bottom: 40px; }
.section-header h2 { font-size: 30px; color: var(--dark); margin-bottom: 8px; position: relative; display: inline-block; }
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.section-header p { color: #999; font-size: 15px; margin-top: 12px; }
.section-header .en { font-size: 13px; color: var(--primary); letter-spacing: 3px; text-transform: uppercase; }

/* ========== Products ========== */
.products { padding: 70px 0; background: #f5f6fa; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { background: #fff; border-radius: 6px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.product-img { height: 180px; overflow: hidden; background: #f0f0f0; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.product-card:hover .product-img img { transform: scale(1.08); }
.product-info { padding: 18px; min-height: 120px; background: #fff; }
.product-info .p-title { font-size: 16px !important; color: #222 !important; margin-bottom: 10px !important; line-height: 1.5 !important; font-weight: 700 !important; display: block !important; overflow: visible !important; height: auto !important; -webkit-line-clamp: unset !important; }
.product-info .p-title a { color: #222 !important; display: block !important; }
.product-info .p-title a:hover { color: #1a73e8 !important; }
.product-info .en { font-size: 12px; color: #999; margin-bottom: 8px; display: block; }
.product-info .price { display: block; font-size: 18px; color: #ff6b35; font-weight: 700; margin-bottom: 8px; }
.product-info a:not(.p-title a) { display: inline-block; color: #1a73e8; font-size: 13px; }
.product-info a:hover { text-decoration: underline; }
.section-more { text-align: center; margin-top: 35px; }
.section-more a { display: inline-block; padding: 10px 36px; border: 2px solid var(--primary); color: var(--primary); border-radius: 30px; font-size: 14px; transition: all 0.3s; }
.section-more a:hover { background: var(--primary); color: #fff; }

/* ========== Cases ========== */
.cases { padding: 70px 0; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.case-card { background: #fff; border-radius: 6px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; }
.case-card:hover { transform: translateY(-5px); }
.case-img { height: 170px; overflow: hidden; background: #f0f0f0; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.case-card:hover .case-img img { transform: scale(1.08); }
.case-info { padding: 15px; }
.case-info h3 { font-size: 15px; color: #222; font-weight: 600; line-height: 1.4; }
.case-info h3 a { color: #222; }
.case-info h3 a:hover { color: #1a73e8; }

/* ========== About ========== */
.about { padding: 70px 0; background: #1a1a2e; color: #fff; }
.about .section-header h2 { color: #fff; }
.about .section-header p { color: rgba(255,255,255,0.6); }
.about .section-header .en { color: #ff9a56; }
.about-content { display: flex; gap: 50px; align-items: center; }
.about-text { flex: 1; font-size: 15px; line-height: 1.9; color: rgba(255,255,255,0.8); }
.about-text p { margin-bottom: 12px; }
.about-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-top: 25px; }
.about-feature { display: flex; align-items: center; gap: 10px; }
.about-feature svg { width: 20px; height: 20px; color: #ff9a56; flex-shrink: 0; }
.about-feature span { font-size: 14px; }
.about-img { flex: 1; border-radius: 10px; overflow: hidden; background: rgba(255,255,255,0.1); min-height: 200px; }
.about-img img { width: 100%; border-radius: 10px; }

/* ========== News ========== */
.news { padding: 70px 0; background: #f5f6fa; }
.news-list { display: flex; flex-direction: column; background: #fff; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); overflow: hidden; }
.news-list-item { display: flex; gap: 20px; padding: 20px 24px; border-bottom: 1px solid #eee; }
.news-list-item:last-child { border-bottom: none; }
.news-list-img { width: 200px; height: 140px; flex-shrink: 0; overflow: hidden; background: #f0f0f0; border-radius: 6px; }
.news-list-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-list-item:hover .news-list-img img { transform: scale(1.06); }
.news-list-body { flex: 1; display: flex; flex-direction: column; }
.news-list-date { font-size: 12px; color: #bbb; margin-bottom: 8px; }
.news-list-body h3 { font-size: 17px; color: #222; margin-bottom: 8px; line-height: 1.4; }
.news-list-body h3 a:hover { color: var(--primary); }
.news-list-body p { font-size: 13px; color: #888; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.news-list-more { display: inline-block; color: var(--primary); font-size: 13px; margin-top: 10px; }
.news-list-more:hover { text-decoration: underline; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.news-card { background: #fff; border-radius: 6px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-4px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
.news-img { height: 180px; overflow: hidden; background: #f0f0f0; }
.news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-img img { transform: scale(1.08); }
.news-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.news-date { font-size: 12px; color: #bbb; margin-bottom: 8px; }
.news-body h3 { font-size: 16px; color: #222; margin-bottom: 10px; line-height: 1.5; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; cursor: pointer; }
.news-body h3:hover { color: var(--primary); }
.news-body p { font-size: 13px; color: #888; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { display: inline-block; color: var(--primary); font-size: 13px; margin-top: 12px; }
.news-more:hover { text-decoration: underline; }

/* ========== Channel Banner ========== */
.channel-banner {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(../images/about.jpg) center/cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 80px 0;
  margin-top: 0;
}
.channel-banner h1 { font-size: 34px; margin-bottom: 8px; }
.channel-banner p { opacity: 0.9; font-size: 15px; }

.channel-banner-article { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=10); }
.channel-banner-product { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=11); }
.channel-banner-case { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=12); }
.channel-banner-page { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=13); }
.channel-banner-video { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=14); }
.channel-banner-recruit { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=15); }
.channel-banner-download { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=16); }
.channel-banner-guestbook { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=17); }
.channel-banner-search { background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(https://picsum.photos/1920/400?random=18); }

/* ========== Channel List ========== */
.channel-list-page { padding: 50px 0; }
.channel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.channel-card { background: #fff; border-radius: 6px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; }
.channel-card:hover { transform: translateY(-4px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
.channel-card-img { height: 180px; overflow: hidden; background: #f0f0f0; position: relative; }
.channel-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.channel-card:hover .channel-card-img img { transform: scale(1.08); }
.channel-card-info { padding: 18px; }
.channel-card-info h3 { font-size: 15px; color: #333; margin-bottom: 8px; line-height: 1.4; display: block; }
.channel-card-info h3 a { color: #333; }
.channel-card-info h3 a:hover { color: var(--primary); }
.channel-card-info .p-price { font-size: 18px; color: #ff6b35; font-weight: 700; margin-top: 6px; }
.channel-card-info p { font-size: 13px; color: #888; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.channel-card-more { display: inline-block; color: var(--primary); font-size: 13px; margin-top: 10px; }

/* ========== Article List Page ========== */
.article-list { display: flex; flex-direction: column; background: #fff; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); overflow: hidden; }
.article-list-item { display: flex; gap: 20px; padding: 24px 24px; border-bottom: 1px solid #eee; }
.article-list-item:last-child { border-bottom: none; }
.article-list-img { width: 220px; height: 160px; flex-shrink: 0; overflow: hidden; background: #f0f0f0; border-radius: 6px; }
.article-list-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.article-list-item:hover .article-list-img img { transform: scale(1.06); }
.article-list-body { flex: 1; display: flex; flex-direction: column; }
.article-list-date { font-size: 12px; color: #bbb; margin-bottom: 8px; }
.article-list-body h3 { font-size: 18px; color: #222; margin-bottom: 10px; line-height: 1.4; }
.article-list-body h3 a:hover { color: var(--primary); }
.article-list-body p { font-size: 14px; color: #888; line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.article-list-more { display: inline-block; color: var(--primary); font-size: 13px; margin-top: 10px; }
.article-list-more:hover { text-decoration: underline; }

/* ========== List Page ========== */
.list-page { padding: 50px 0; }
.list-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ========== Article Detail ========== */
.article-page { padding: 50px 0; }
.article-header { text-align: center; padding: 35px 0; border-bottom: 1px solid #eee; margin-bottom: 35px; }
.article-header h1 { font-size: 26px; color: #222; margin-bottom: 12px; line-height: 1.4; }
.article-meta { font-size: 13px; color: #bbb; }
.article-meta span { margin: 0 12px; }
.article-content { max-width: 900px; margin: 0 auto; }
.article-content p { margin-bottom: 18px; line-height: 1.9; font-size: 15px; color: #444; }
.article-content img { max-width: 100%; border-radius: 6px; margin: 15px 0; }

/* ========== Breadcrumb ========== */
.breadcrumb { padding: 12px 0; font-size: 13px; color: #999; background: #f9f9f9; border-bottom: 1px solid #eee; }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 6px; }

/* ========== Pagination ========== */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 40px; }
.pagination a, .pagination span { display: inline-block; padding: 7px 14px; border: 1px solid #ddd; border-radius: 4px; font-size: 13px; color: #666; transition: all 0.3s; }
.pagination a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .disabled { color: #ccc; pointer-events: none; }

/* ========== Guestbook ========== */
.guestbook-page { padding: 50px 0; background: #f5f6fa; }
.guestbook-form { background: #fff; padding: 35px; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); max-width: 650px; margin: 0 auto; }
.guestbook-form h2 { font-size: 22px; text-align: center; margin-bottom: 25px; color: #333; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; color: #555; margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group textarea { width: 100%; padding: 10px 14px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px; font-family: inherit; transition: border-color 0.3s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { height: 110px; resize: vertical; }
.form-btn { width: 100%; padding: 13px; background: var(--primary); color: #fff; border: none; border-radius: 4px; font-size: 15px; cursor: pointer; transition: background 0.3s; }
.form-btn:hover { background: var(--primary-dark); }
.guestbook-list { max-width: 800px; margin: 40px auto 0; }
.guestbook-list h3 { font-size: 18px; margin-bottom: 15px; color: #333; }
.guestbook-item { background: #fff; padding: 22px; border-radius: 6px; margin-bottom: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.guestbook-item .guest-name { font-weight: 600; color: #333; margin-bottom: 4px; }
.guestbook-item .guest-time { font-size: 12px; color: #bbb; margin-bottom: 8px; }
.guestbook-item .guest-content { color: #666; font-size: 14px; line-height: 1.7; }

/* ========== Page Content ========== */
.page-content { padding: 50px 0; }
.page-content .content-body { max-width: 900px; margin: 0 auto; }
.page-content .content-body p { margin-bottom: 18px; line-height: 1.9; font-size: 15px; color: #444; }

/* ========== Search ========== */
.search-page { padding: 50px 0; }
.search-form { max-width: 580px; margin: 0 auto 35px; display: flex; gap: 8px; }
.search-form input { flex: 1; padding: 11px 18px; border: 2px solid var(--primary); border-radius: 30px; font-size: 14px; outline: none; }
.search-form button { padding: 11px 28px; background: var(--primary); color: #fff; border: none; border-radius: 30px; cursor: pointer; font-size: 14px; transition: background 0.3s; }
.search-form button:hover { background: var(--primary-dark); }
.search-results h3 { margin-bottom: 18px; color: #333; font-size: 18px; }
.search-result-item { background: #fff; padding: 18px; border-radius: 6px; margin-bottom: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.search-result-item h4 { font-size: 16px; color: var(--primary); margin-bottom: 6px; }
.search-result-item h4 a:hover { text-decoration: underline; }
.search-result-item p { color: #888; font-size: 13px; }

/* ========== Video ========== */
.video-page { padding: 50px 0; }
.video-player { max-width: 900px; margin: 0 auto 30px; border-radius: 6px; overflow: hidden; background: #000; aspect-ratio: 16/9; }
.video-player video { width: 100%; height: 100%; }
.video-info { max-width: 900px; margin: 0 auto; }
.video-info h1 { font-size: 24px; color: #333; margin-bottom: 10px; }
.video-info .meta { color: #bbb; font-size: 13px; margin-bottom: 18px; }

/* ========== Recruit ========== */
.recruit-page { padding: 50px 0; }
.recruit-list { max-width: 850px; margin: 0 auto; }
.recruit-item { background: #fff; padding: 22px; border-radius: 6px; margin-bottom: 18px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); border-left: 3px solid var(--primary); }
.recruit-item h3 { font-size: 18px; color: #333; margin-bottom: 10px; }
.recruit-item .recruit-meta { display: flex; gap: 18px; color: #999; font-size: 13px; margin-bottom: 12px; flex-wrap: wrap; }
.recruit-item .recruit-meta span { display: flex; align-items: center; gap: 4px; }
.recruit-item p { color: #666; font-size: 14px; line-height: 1.7; }

/* ========== Download ========== */
.download-page { padding: 50px 0; }
.download-item { background: #fff; padding: 18px; border-radius: 6px; margin-bottom: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); display: flex; align-items: center; gap: 18px; }
.download-icon { width: 48px; height: 48px; background: var(--primary); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.download-info { flex: 1; }
.download-info h4 { font-size: 15px; color: #333; margin-bottom: 4px; }
.download-info p { font-size: 13px; color: #999; }
.download-btn { padding: 8px 18px; background: var(--primary); color: #fff; border-radius: 20px; font-size: 13px; transition: background 0.3s; white-space: nowrap; }
.download-btn:hover { background: var(--primary-dark); }

/* ========== Footer ========== */
.footer { background: #1a1a2e; color: rgba(255,255,255,0.65); padding: 55px 0 25px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 35px; margin-bottom: 35px; }
.footer-brand h3 { font-size: 20px; color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; font-size: 13px; }
.footer-col ul li a:hover { color: #fff; }
.footer-col p { font-size: 13px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 8px; }
.footer-col p svg { width: 15px; height: 15px; color: #ff9a56; flex-shrink: 0; margin-top: 2px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 18px; text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); }

.copyright { background: #111; padding: 12px 0; text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); }
.copyright a { color: rgba(255,255,255,0.5); }
.copyright a:hover { color: rgba(255,255,255,0.8); }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .topbar-inner { flex-direction: column; gap: 6px; text-align: center; }
  .header-inner { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 10px; }
  .nav { gap: 0; flex-wrap: wrap; }
  .nav-item > a { padding: 0 12px; font-size: 13px; }
  .banner { height: 350px; }
  .banner h2 { font-size: 28px; }
  .banner p { font-size: 15px; }
  .product-grid, .case-grid, .channel-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .about-content { flex-direction: column; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .section-header h2 { font-size: 24px; }
  .header-phone { display: none; }
}
@media (max-width: 480px) {
  .product-grid, .case-grid, .channel-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ========== Image Detail ========== */
.image-detail-albums { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
.album-item { background: #f0f0f0; border-radius: 6px; overflow: hidden; display: flex; align-items: center; justify-content: center; padding: 10px; }
.album-item img { width: 100%; height: auto; object-fit: contain; transition: transform 0.5s; }
.album-item:hover img { transform: scale(1.05); }

@media (max-width: 768px) {
  .image-detail-albums { grid-template-columns: repeat(2, 1fr); }
}