/* ==========================================================
   重庆芯物合科技有限公司 官网样式
   风格参考：拓邦股份官网 topband.com（已抓取其实际样式）
   - 主品牌色 #0f4c81 深蓝，辅助亮蓝 #307fe2
   - 白色 68px 导航栏 + #e5e5e5 底边线
   - 浅灰 #f6f6f6 分区背景与页脚
   - 标题下方居中蓝色短线（.tb-titile-line 样式）
   - 轮播圆形箭头悬停显示
   ========================================================== */

:root {
  --primary: #0f4c81;
  --primary-dark: #0c3b66;
  --bright: #307fe2;
  --primary-light: #e7f1ff;
  --navy: #07223a;
  --accent: #ff7a2f;
  --bg-light: #f6f6f6;
  --bg-hover: #f1f1f1;
  --border: #e5e5e5;
  --text: #222222;
  --text-light: #6c757d;
  --white: #ffffff;
  --shadow-sm: 0 2px 10px rgba(15, 76, 129, .06);
  --shadow-md: 0 8px 28px rgba(15, 76, 129, .12);
  --shadow-lg: 0 16px 48px rgba(15, 76, 129, .18);
  --radius: 8px;
  --transition: all .3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 11px 30px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  line-height: 1.4;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15, 76, 129, .35); }
.btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .55); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .22); transform: translateY(-2px); }
.btn-outline { border: 1px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ---------- 顶部工具条 ---------- */
.topbar {
  background: var(--navy);
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  line-height: 36px;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.topbar-links { display: flex; gap: 24px; }
.topbar-item { white-space: nowrap; }

/* ---------- 导航栏（参照 tb-header：白底 68px + #e5e5e5 底边线） ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo img { height: 40px; width: auto; }

.nav { display: flex; gap: 4px; }
.nav-link {
  display: block;
  padding: 8px 18px;
  font-size: 16px;
  color: var(--text);
  position: relative;
  transition: var(--transition);
}
/* 参照 topband：激活菜单下方小蓝条 */
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
  transform: translateX(-50%);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { width: 56%; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--primary); margin: 5px 0; border-radius: 2px; transition: var(--transition); }

/* ---------- Banner 轮播（参照 tb-banner + swiper） ---------- */
.hero { position: relative; height: 560px; overflow: hidden; background: var(--navy); }
.hero-slides, .hero-slide { position: absolute; inset: 0; }
.hero-slide {
  background-size: cover;
  background-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .8s ease, visibility .8s;
}
.hero-slide.active { opacity: 1; visibility: visible; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 34, 58, .92) 0%, rgba(15, 76, 129, .78) 48%, rgba(48, 127, 226, .42) 100%);
}
.hero-overlay-grid {
  background:
    linear-gradient(100deg, rgba(7, 34, 58, .94) 0%, rgba(15, 76, 129, .85) 50%, rgba(48, 127, 226, .5) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255,255,255,.05) 39px, rgba(255,255,255,.05) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255,255,255,.05) 39px, rgba(255,255,255,.05) 40px);
}

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  color: #fff;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}
.hero-kicker {
  font-size: 16px;
  letter-spacing: 3px;
  color: #a8cdf7;
  margin-bottom: 16px;
}
.hero-title {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
}
.hero-title span { color: #8fbcff; display: block; }
.hero-desc { font-size: 17px; color: rgba(255, 255, 255, .85); max-width: 640px; margin-bottom: 34px; }
.hero-btns { display: flex; gap: 18px; }

/* 参照 topband：圆形箭头，悬停 banner 时显示，距左右 56px */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, .18);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.hero:hover .hero-arrow { opacity: 1; visibility: visible; }
.hero-arrow:hover { background: var(--primary); }
.hero-arrow.prev { left: 56px; }
.hero-arrow.next { right: 56px; }

.hero-dots {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  gap: 10px;
}
.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, .4);
  cursor: pointer;
  transition: var(--transition);
}
.hero-dot.active { background: #fff; width: 30px; border-radius: 6px; }

/* ---------- 数据统计 ---------- */
.stats {
  background: linear-gradient(120deg, var(--navy) 0%, var(--primary) 100%);
  color: #fff;
  padding: 44px 0;
}
.stats-inner { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; text-align: center; }
.stat-num { font-size: 40px; font-weight: 700; color: #fff; }
.stat-num em { font-style: normal; font-size: 20px; color: #a8cdf7; margin-left: 2px; }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, .72); margin-top: 4px; }

/* ---------- 通用 section ---------- */
.section { padding: 84px 0; }
.products, .contact { background: var(--bg-light); }

.section-head { text-align: center; margin-bottom: 52px; }
.section-kicker {
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--bright);
  font-weight: 600;
  margin-bottom: 8px;
}
.section-title { font-size: 34px; font-weight: 700; color: var(--primary); }
/* 参照 tb-titile-line：标题下方居中蓝色短线 */
.section-line {
  width: 35px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
  margin: 16px auto 0;
}
.section-sub { color: var(--text-light); margin-top: 16px; }

/* ---------- 公司简介 ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: stretch; }
.about-text { display: flex; flex-direction: column; }
.about-text h3 { font-size: 26px; color: var(--primary); margin-bottom: 20px; }
.about-lead { color: var(--text-light); margin-bottom: 16px; font-size: 16px; }
.about-lead strong { color: var(--primary); }
.about-actions { margin-top: auto; padding-top: 28px; display: flex; gap: 16px; }

/* 三张卡片等高：每行等高、图标与标题同行、文字下方对齐 */
.about-cards { display: grid; grid-template-rows: repeat(3, 1fr); gap: 20px; }
.about-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #b7cde8; }
.about-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.about-card-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--bright));
  color: #fff;
  font-size: 21px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-card h4 { font-size: 17px; color: var(--primary); }
.about-card p { color: var(--text-light); font-size: 14px; flex: 1; }

/* ---------- 产品中心 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #b7cde8; }
.product-card.static { cursor: default; }
.product-card.static:hover { box-shadow: var(--shadow-sm); }
.product-img {
  height: 210px;
  background: linear-gradient(160deg, #f2f7fd 0%, #e3edf9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  position: relative;
  overflow: hidden;
}
.product-img img { max-height: 100%; max-width: 100%; object-fit: contain; transition: transform .4s ease; }
.product-card:hover .product-img img { transform: scale(1.06); }
.product-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.product-body h4 { font-size: 17px; color: var(--primary); margin-bottom: 8px; }
.product-body p { font-size: 13px; color: var(--text-light); flex: 1; }
.product-more { margin-top: 14px; color: var(--primary); font-size: 13px; font-weight: 500; }

/* ---------- 解决方案 ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.solution-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--bright));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.solution-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.solution-card:hover::before { transform: scaleX(1); }
.solution-icon { font-size: 38px; margin-bottom: 16px; }
.solution-card h4 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.solution-card p { font-size: 14px; color: var(--text-light); }

/* ---------- 子区块标题 ---------- */
.sub-head { text-align: center; margin: 64px 0 32px; }
.sub-head h3 {
  display: inline-block;
  font-size: 22px;
  color: var(--primary);
  position: relative;
  padding: 0 12px 14px;
}
.sub-head h3::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 34px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
}
.sub-head h3 span { display: block; font-size: 13px; color: var(--text-light); font-weight: 400; margin-top: 8px; }

/* ---------- 物联网管理平台 ---------- */
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.platform-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.platform-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #b7cde8; }
.platform-img { height: 150px; overflow: hidden; border-bottom: 1px solid var(--border); background: #fafbfd; }
.platform-img img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .5s ease; }
.platform-card:hover .platform-img img { transform: scale(1.05); }
.platform-body { padding: 18px 20px 22px; }
.platform-body h4 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.platform-body p { font-size: 13px; color: var(--text-light); }

/* ---------- 成功案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #b7cde8; }
.case-img { flex: 0 0 42%; overflow: hidden; background: #fafbfd; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.case-card:hover .case-img img { transform: scale(1.05); }
.case-body { padding: 26px 26px 24px; display: flex; flex-direction: column; justify-content: center; }
.case-body h4 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.case-body p { font-size: 13px; color: var(--text-light); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-info { display: grid; gap: 18px; }
.contact-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  gap: 18px;
  align-items: center;
  box-shadow: var(--shadow-sm);
}
.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-item h4 { font-size: 15px; color: var(--primary); margin-bottom: 2px; }
.contact-item p { font-size: 14px; color: var(--text-light); }
.contact-qrcode { text-align: center; padding: 10px 0; }
.qrcode-box {
  width: 190px;
  height: 190px;
  margin: 0 auto 12px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.qrcode-box img { width: 100%; height: 100%; object-fit: contain; }
.contact-qrcode p { font-size: 13px; color: var(--text-light); }

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: var(--transition);
  outline: none;
  background: var(--bg-light);
}
.contact-form input:focus, .contact-form textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 76, 129, .12);
}
.contact-form textarea { margin-bottom: 18px; resize: vertical; }
.form-tip { font-size: 12px; color: #9aa6b8; text-align: center; margin-top: 10px; }

/* ---------- 页脚（参照 topband：浅灰 #f6f6f6 底 + 深色文字） ---------- */
.footer { background: var(--bg-light); color: #4a5568; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1.2fr; gap: 40px; padding: 64px 20px 40px; }
.footer-logo { height: 40px; margin-bottom: 18px; }
.footer-about p { font-size: 13px; line-height: 1.9; }
.footer-col h4 { color: var(--primary); font-size: 16px; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
}
.footer-col li { margin-bottom: 10px; font-size: 14px; }
.footer-col a { transition: var(--transition); }
.footer-col a:hover { color: var(--bright); padding-left: 4px; }
.footer-contact li { font-size: 13px; }

.footer-bottom { border-top: 1px solid var(--border); padding: 18px 0; font-size: 13px; color: #8a94a6; }
.footer-bottom-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: #8a94a6; }
.footer-bottom a:hover { color: var(--primary); }
.beian-sep { margin: 0 8px; color: #c2cad6; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 40px;
  z-index: 90;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(15, 76, 129, .4);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--bright); }

/* ---------- 产品详情弹窗 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(7, 34, 58, .6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.modal-mask.open { opacity: 1; visibility: visible; }
.modal {
  background: #fff;
  border-radius: 12px;
  max-width: 860px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(24px) scale(.98);
  transition: var(--transition);
}
.modal-mask.open .modal { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 5;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, .2);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}
.modal-close:hover { background: var(--bright); }

.modal-head {
  background: linear-gradient(120deg, var(--navy) 0%, var(--primary) 100%);
  color: #fff;
  padding: 28px 34px;
}
.modal-head h3 { font-size: 24px; margin-bottom: 6px; }
.modal-head p { font-size: 14px; color: rgba(255, 255, 255, .75); }
.modal-inner { padding: 30px 34px 36px; }

.modal-desc { color: var(--text-light); font-size: 15px; margin-bottom: 26px; line-height: 1.9; }

.modal-gallery { display: flex; gap: 18px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 26px; }
.modal-gallery-item {
  background: linear-gradient(160deg, #f2f7fd, #e3edf9);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  flex: 1;
  min-width: 150px;
  border: 1px solid var(--border);
}
.modal-gallery-item img { max-height: 220px; margin: 0 auto; object-fit: contain; }
.modal-gallery-item span { display: block; font-size: 12px; color: var(--text-light); margin-top: 10px; }

.modal-block { margin-bottom: 26px; }
.modal-block h4 {
  font-size: 16px;
  color: var(--primary);
  border-left: 4px solid var(--primary);
  padding-left: 12px;
  margin-bottom: 14px;
}
.modal-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.modal-tag {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 4px;
}

.modal-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.modal-table th, .modal-table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.modal-table th { background: var(--bg-light); color: var(--primary); width: 22%; font-weight: 600; white-space: nowrap; }
.modal-table td { color: var(--text-light); }

.modal-placeholder {
  background: var(--bg-light);
  border: 1px dashed #b9c8dd;
  border-radius: 10px;
  padding: 40px 20px;
  text-align: center;
  color: #9aa6b8;
}

/* ---------- 滚动显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero { height: 480px; }
  .hero-title { font-size: 32px; }
  .hero-desc { font-size: 15px; }
  .hero-arrow { display: none; }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 72%;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 80px 28px;
    gap: 8px;
    box-shadow: -8px 0 30px rgba(15, 76, 129, .15);
    transition: right .35s ease;
    z-index: 99;
  }
  .nav.open { right: 0; }
  .nav-link { font-size: 17px; padding: 12px 4px; border-bottom: 1px solid var(--bg-light); }
  .nav-link::after { display: none; }
  .nav-toggle { display: block; z-index: 101; }

  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .product-grid, .solution-grid, .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { flex-direction: column; }
  .case-img { flex: none; height: 200px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .modal-inner, .modal-head { padding-left: 22px; padding-right: 22px; }
}

@media (max-width: 480px) {
  .product-grid, .solution-grid, .platform-grid { grid-template-columns: 1fr; }
  .topbar-links { gap: 12px; }
  .topbar-welcome { display: none; }
  .hero-btns { flex-direction: column; width: 100%; }
  .hero-btns .btn { text-align: center; }
}