:host { display:block; background:#fff; color:#2e2a2a; font-family:"Inter","Segoe UI",sans-serif; }
section { scroll-margin-top: 96px; }
.container { max-width: 1140px; margin: 0 auto; padding: 1.25rem; }

.tube-hero {
  background: linear-gradient(135deg, #abb8c3 0%, #8b9ba8 100%);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}
.tube-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.tube-breadcrumb {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}
.tube-breadcrumb a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}
.tube-breadcrumb a:hover {
  color: #fff;
  background: rgba(255,255,255,0.2);
  transform: translateX(2px);
}
.tube-breadcrumb span {
  color: rgba(255,255,255,0.7);
}
.tube-hero-content {
  position: relative;
  z-index: 1;
}
.tube-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: #fff;
  margin: 0 0 1.5rem 0;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
  line-height: 1.1;
}
.tube-hero-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.95);
  max-width: 900px;
  margin: 0 0 1.25rem 0;
  text-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.tube-hero-cta {
  margin-top: 2rem;
}
.tube-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-weight: 600;
  padding: 1rem 2rem;
  text-decoration: none;
  background: #fff;
  color: #cf2e2e;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  position: relative;
  overflow: hidden;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.tube-btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}
.tube-btn-primary:hover::before {
  width: 300px;
  height: 300px;
}
.tube-btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255,255,255,0.4);
}
.tube-hero-media {
  margin-top: 2.5rem;
}
.tube-hero-placeholder {
  width: 100%;
  height: 400px;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(15,23,42,0.18);
}

.tube-section {
  padding: 4.5rem 0;
  background: #fff;
}
.tube-section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.tube-section-header h2 {
  font-size: 2.3rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}
.tube-section-header p {
  max-width: 760px;
  margin: 0 auto;
  color: #6b7280;
  font-size: 1rem;
}

.tube-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.tube-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid #e5e7eb;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(15,23,42,0.06);
  transition: all 0.25s ease;
}
.tube-card:hover {
  border-color: #cf2e2e;
  box-shadow: 0 14px 30px rgba(207,46,46,0.15);
  transform: translateY(-4px);
}
.tube-card-media {
  width: 100%;
  height: 220px;
  background: #f9fafb;
}
.tube-media-placeholder {
  width: 100%;
  height: 100%;
  background: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  font-size: 0.95rem;
}
.tube-card-body {
  padding: 1.75rem 1.75rem 1.75rem;
}
.tube-card-body h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: #111827;
  margin: 0 0 0.5rem 0;
}
.tube-card-subtitle {
  font-size: 0.95rem;
  font-weight: 600;
  color: #6b7280;
  margin: 0 0 0.75rem 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tube-card-text {
  font-size: 0.98rem;
  line-height: 1.7;
  color: #4b5563;
  margin: 0;
}

.tube-note {
  background: #f9fafb;
}
.tube-note h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
  text-align: left;
}
.tube-note p {
  font-size: 1rem;
  line-height: 1.8;
  color: #4b5563;
  max-width: 900px;
}
.tube-custom-media {
  margin-top: 2rem;
}
.tube-custom-media .tube-media-placeholder {
  height: 260px;
}

@media (max-width: 768px) {
  .tube-hero {
    padding: 3.5rem 0;
  }
  .tube-hero h1 {
    font-size: 2.2rem;
  }
  .tube-hero-text {
    font-size: 1.05rem;
  }
  .tube-grid {
    grid-template-columns: 1fr;
  }
}