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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

header {
  background: #ff0000;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 52px;
}

header h1 {
  font-size: 1.1rem;
  white-space: nowrap;
}

header h1 a {
  color: inherit;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 0.2rem;
}

nav a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.8rem;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

nav a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
}

nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.page-intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1rem 0;
}

.page-intro h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 0.4rem;
}

.page-intro p {
  font-size: 0.85rem;
  color: #888;
  line-height: 1.6;
}

.notice {
  background: #fff8e1;
  color: #7a6100;
  text-align: center;
  font-size: 0.78rem;
  padding: 0.5rem 1rem;
  line-height: 1.5;
}

.notice a {
  color: #7a6100;
  font-weight: 600;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.count {
  font-size: 0.85rem;
  color: #888;
  font-weight: 500;
}

.toolbar-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.sort-group,
.filter-group {
  display: flex;
  background: #f2f2f2;
  border-radius: 20px;
  padding: 3px;
}

.btn-sort,
.btn-filter {
  background: transparent;
  border: none;
  border-radius: 18px;
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  color: #777;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-sort:hover,
.btn-filter:hover {
  color: #333;
}

.btn-filter.active,
.btn-sort.active {
  background: #fff;
  color: #333;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-group::before {
  content: "\25C9";
  display: flex;
  align-items: center;
  padding-left: 0.5rem;
  font-size: 0.7rem;
  color: #999;
}

.sort-group::before {
  content: "\21C5";
  display: flex;
  align-items: center;
  padding-left: 0.5rem;
  font-size: 0.85rem;
  color: #999;
}

.platform-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  letter-spacing: 0.02em;
  border: 1.5px solid;
  vertical-align: middle;
}

.platform-base {
  background: #eafaf1;
  color: #00A95F;
  border-color: #00A95F;
  border-radius: 3px;
}

.platform-stores {
  background: #eef0ff;
  color: #4b5cc4;
  border-color: #4b5cc4;
  border-radius: 10px;
}

.video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.78rem;
  color: #888;
}

.loading,
.error {
  text-align: center;
  padding: 3rem;
  color: #666;
}

.error {
  color: #c00;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}

.card {
  position: relative;
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
}

.card > .platform-badge {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
}

.channel-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.channel-link:hover .channel-name {
  color: #ff0000;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
}

.channel-name {
  font-weight: 700;
  font-size: 1.05rem;
  transition: color 0.2s;
}

.subscribers {
  font-size: 0.85rem;
  color: #888;
}

.links {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

.btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border: 1.5px solid transparent;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.8;
}

.btn-shop {
  background: #00A95F;
  color: #fff;
}

.btn-video {
  background: transparent;
  color: #666;
  border: 1.5px solid #ccc;
}

.btn-video:hover {
  color: #333;
  border-color: #999;
}

.video-title {
  font-size: 0.8rem;
  color: #999;
  text-decoration: none;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.4;
  margin-top: 0.2rem;
}

.video-title:hover {
  text-decoration: underline;
}

.description {
  font-size: 0.78rem;
  color: #888;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-height: 1.4;
  margin-top: 0.3rem;
  text-align: left;
  width: 100%;
}

.card-product {
  padding: 0;
  text-align: left;
  align-items: stretch;
}

.video-thumb-wrap {
  position: relative;
}

.video-thumb-wrap > .platform-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
}

.video-thumb-link {
  display: block;
  width: 100%;
}

.video-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px 12px 0 0;
}

.card-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-product .video-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
}

.channel-inline {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: #666;
  font-size: 0.82rem;
}

.channel-inline:hover {
  color: #ff0000;
}

.avatar-small {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

footer {
  background: #f0f0f0;
  text-align: center;
  padding: 1.5rem 1rem;
  margin-top: 2rem;
  font-size: 0.8rem;
  color: #888;
}

footer a {
  color: #666;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
  line-height: 1.8;
}

.prose h2 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #eee;
}

.prose h3 {
  font-size: 1.05rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.prose p {
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
  color: #555;
}

.prose a {
  color: #0066cc;
}

.prose a:hover {
  text-decoration: none;
}