html,
body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #000;
  height: 100%;
}
.sv-page {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 450px;
  margin: 0 auto;
  background: #000;
  overflow: hidden;
}
.sv-video-container {
  position: relative;
  width: 100%;
  height: 100%;
}
.sv-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.sv-dots {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  cursor: pointer;
  z-index: 20;
}
.sv-play-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  z-index: 15;
  pointer-events: none;
}
.sv-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: -moz-linear-gradient(
    top,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0.6) 26%,
    rgba(0, 0, 0, 1) 100%
  );
  background: -webkit-linear-gradient(
    top,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0.6) 26%,
    rgba(0, 0, 0, 1) 100%
  );
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0.6) 26%,
    rgba(0, 0, 0, 1) 100%
  );
  z-index: 10;
}
.sv-overlay-icons {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}
.sv-icon {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.sv-overlay-title h1 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin: 0;
  line-height: 1.4;
  display: -webkit-box;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sv-nav {
  position: absolute;
  right: 16px;
  z-index: 15;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  cursor: pointer;
}
.sv-nav-up {
  top: 50%;
  margin-top: -44px;
}
.sv-nav-down {
  top: 50%;
  margin-top: 8px;
}
.sv-detail-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.92);
  padding: 20px 16px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  z-index: 30;
  max-height: 60vh;
  overflow-y: auto;
  border-radius: 16px 16px 0 0;
}
.sv-detail-panel.open {
  transform: translateY(0);
}
.sv-detail-close {
  position: absolute;
  top: 12px;
  right: 16px;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
}
.sv-detail-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
  line-height: 1.5;
  padding-right: 30px;
}
.sv-detail-desc {
  font-size: 0.875rem;
  color: #ccc;
  line-height: 1.6;
  margin: 0 0 14px;
}
.sv-detail-meta {
  font-size: 0.8rem;
  color: #888;
  display: flex;
  gap: 12px;
}
@media (max-width: 767px) {
  .sv-page {
    max-width: 100%;
  }
  .sv-nav {
    display: none;
  }
}