/* ============================================================
   产品页与产品索引（products.html / product.html?id=…）
   ----------------------------------------------------
   与站点同一套深空底 + 液态玻璃语言；刻意不用大面积 backdrop-filter
   （2026-10-17 实测：卡片磨砂在软件合成下会把滚动打到 16–33 帧）。
   ============================================================ */

/* ---------------- 索引页分组 ---------------- */
.prod-group {
  margin: 2.4rem 0 0;
}
.prod-group-title {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(158, 176, 202, 0.72);
}
.prod-group-title span {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 11px;
  font-weight: 400;
  color: rgba(158, 176, 202, 0.45);
}
/* 桌面 3 列（一屏能看到 6 个产品），平板 2 列，手机 1 列。
   2026-10-17：原先 2 列 + 16:9 大封面，1440 宽下每张卡近 500px 高，显得冗余 */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 1079px) {
  .prod-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 639px) {
  .prod-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.prod-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  text-decoration: none;
  transition: transform 0.25s var(--ease-swift), border-color 0.25s ease, background-color 0.25s ease;
}
.prod-card:hover {
  transform: translateY(-3px);
  border-color: rgba(143, 184, 255, 0.32);
  background: rgba(255, 255, 255, 0.05);
}
.prod-card-cover {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #14203a 0%, #1b2140 45%, #2a2350 100%);
}
.prod-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease-swift);
}
.prod-card:hover .prod-card-cover img {
  transform: scale(1.03);
}
.prod-card-body {
  padding: 0.95rem 1.05rem 1.1rem;
}
.prod-card-body b {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: #f5f5f7;
}
.prod-card-body p {
  margin: 0 0 0.7rem;
  font-size: 12.5px;
  line-height: 1.7;
  color: #86868b;
}
.prod-card-meta {
  display: flex;
  gap: 0.6rem;
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 11px;
  color: rgba(158, 176, 202, 0.55);
}
.prod-card-meta span + span::before {
  content: "·";
  margin-right: 0.6rem;
  opacity: 0.6;
}

/* 封面兜底：图裂/没图时露出品牌渐变 + 首字 */
.prod-cover-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(135deg, #14203a 0%, #1b2140 45%, #2a2350 100%);
}
.prod-card-cover img + .prod-cover-fallback,
.prod-hero-cover img + .prod-cover-fallback {
  z-index: 0;
}
.prod-card-cover img,
.prod-hero-cover img {
  position: relative;
  z-index: 1;
}

/* ---------------- 详情页 ---------------- */
.prod-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 2rem 0 1.2rem;
  font-size: 11.5px;
  color: #86868b;
}
.prod-crumb a {
  color: #86868b;
  text-decoration: none;
  transition: color 0.2s ease;
}
.prod-crumb a:hover {
  color: #8fb8ff;
}
.prod-crumb span[aria-current] {
  color: rgba(245, 245, 247, 0.72);
}

/* 桌面：左信息栏（sticky）+ 右内容栏；手机：单列。
   左栏只放「读之前要决定的事」（版本/下载/环境），右栏放要读的内容 */
.prod-layout {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 2.4rem;
  align-items: start;
}
/* 平板竖屏（<1024）退回单列：两栏会把正文压到 480px 内，长文很难读 */
@media (max-width: 1023px) {
  .prod-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.4rem;
  }
}
.prod-rail {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
@media (min-width: 1024px) {
  /* 左栏跟随滚动，右栏读到哪里都能随手点下载 */
  .prod-rail {
    position: sticky;
    top: 4.2rem;
    border-bottom: none;
    padding-bottom: 0;
  }
}
.prod-main {
  min-width: 0;
}
.prod-main .prod-section:first-child {
  padding-top: 0;
}

.prod-hero {
  margin: 0;
}
.prod-hero-cover {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: linear-gradient(135deg, #14203a 0%, #1b2140 45%, #2a2350 100%);
}
.prod-hero-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.prod-hero h1 {
  margin: 0.55rem 0 0.6rem;
  font-size: clamp(21px, 2.1vw, 26px);
  line-height: 1.28;
  font-weight: 750;
  letter-spacing: -0.02em;
  color: #f5f5f7;
}
.prod-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.prod-chip {
  padding: 0.22rem 0.6rem;
  border: 1px solid rgba(143, 184, 255, 0.4);
  border-radius: 9999px;
  background: rgba(143, 184, 255, 0.1);
  color: #8fb8ff;
  font-size: 11px;
  font-family: ui-monospace, Consolas, "Courier New", monospace;
}
.prod-chip-quiet {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: #86868b;
}
.prod-lede {
  margin: 0 0 0.9rem;
  font-size: 13.5px;
  line-height: 1.85;
  color: #b9bcc4;
}
.prod-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}
.prod-tags li {
  padding: 0.18rem 0.5rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(158, 176, 202, 0.85);
  font-size: 11px;
  font-family: ui-monospace, Consolas, "Courier New", monospace;
}
.prod-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.prod-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: #f5f5f7;
  font-size: 12.5px;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s var(--ease-swift);
}
.prod-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}
.prod-btn-primary {
  border-color: transparent;
  background: #8fb8ff;
  color: #06101f;
  font-weight: 650;
}
.prod-btn-primary:hover {
  background: #a4c6ff;
  color: #06101f;
}
.prod-req {
  margin: 0.85rem 0 0;
  font-size: 11.5px;
  color: #86868b;
}

.prod-section {
  padding: 1.7rem 0 0.3rem;
}
.prod-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}
.prod-section-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: #f5f5f7;
}
.prod-version,
.prod-role,
.prod-more {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 11px;
  color: rgba(158, 176, 202, 0.6);
  text-decoration: none;
}
.prod-more:hover {
  color: #8fb8ff;
}
.prod-md {
  font-size: 13.5px;
  line-height: 1.85;
}
.prod-challenge {
  margin: 0;
  padding: 0.95rem 1.1rem;
  border-left: 2px solid rgba(143, 184, 255, 0.5);
  border-radius: 0 12px 12px 0;
  background: rgba(143, 184, 255, 0.06);
  font-size: 13px;
  line-height: 1.9;
  color: #c9ccd4;
}

/* 版本记录 */
.prod-releases {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}
.prod-release {
  position: relative;
  padding: 0 0 1.1rem 1.1rem;
}
.prod-release::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 0.42rem;
  width: 7px;
  height: 7px;
  border-radius: 9999px;
  background: rgba(143, 184, 255, 0.75);
  box-shadow: 0 0 0 3px rgba(143, 184, 255, 0.14);
}
.prod-release-head {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
}
.prod-release-head b {
  font-size: 13px;
  font-weight: 650;
  color: #f5f5f7;
}
.prod-release-head span {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 11px;
  color: rgba(158, 176, 202, 0.55);
}
.prod-release ul {
  margin: 0;
  padding-left: 1.05rem;
}
.prod-release li {
  margin: 0.2rem 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: #a9adb7;
}

.prod-hint {
  margin: 0.9rem 0 0;
  font-size: 11.5px;
  line-height: 1.8;
  color: rgba(158, 176, 202, 0.55);
}
.prod-hint code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(245, 245, 247, 0.8);
}

/* 相关手记 */
.prod-related {
  display: grid;
  gap: 0.55rem;
}
.prod-related-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.prod-related-item:hover {
  border-color: rgba(143, 184, 255, 0.3);
  background: rgba(143, 184, 255, 0.05);
}
.prod-related-item b {
  font-size: 13px;
  font-weight: 550;
  color: #e6e8ec;
}
.prod-related-item span {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 10.5px;
  color: rgba(158, 176, 202, 0.55);
}

/* 上下一个产品 */
.prod-pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 2.2rem 0 3rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.prod-pager-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.prod-pager-item:hover {
  border-color: rgba(143, 184, 255, 0.3);
  background: rgba(255, 255, 255, 0.03);
}
.prod-pager-item span {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  font-size: 10.5px;
  color: rgba(158, 176, 202, 0.55);
}
.prod-pager-item b {
  font-size: 12.5px;
  font-weight: 550;
  color: #f5f5f7;
}
.prod-pager-next {
  text-align: right;
}

/* 找不到产品 */
.prod-missing {
  padding: 4rem 0 6rem;
}
.prod-missing h1 {
  margin: 0 0 0.6rem;
  font-size: 24px;
  font-weight: 700;
  color: #f5f5f7;
}
.prod-missing p {
  margin: 0 0 1.2rem;
  font-size: 13px;
  line-height: 1.8;
  color: #86868b;
}
.prod-missing code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
}

@media (prefers-reduced-motion: reduce) {
  .prod-card,
  .prod-card-cover img,
  .prod-btn {
    transition: none;
  }
  .prod-card:hover,
  .prod-btn:hover {
    transform: none;
  }
}