.page-products {
  --prod-ink: #0A1F44;
  --prod-accent: #00C2A8;
  --prod-gold: #F6B93B;
  --prod-paper: #F4F7FC;
  --prod-line: #D3E2F5;
  --prod-muted: #64748B;
}

/* ========== 英雄区 ========== */
.page-products .prod-hero {
  position: relative;
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  right: -60px;
  top: 72px;
  width: 200px;
  height: 14px;
  background: repeating-linear-gradient(115deg, transparent 0 12px, var(--qsu-gold) 12px 14px);
  opacity: .24;
  transform: rotate(-8deg);
  pointer-events: none;
  z-index: 0;
}

.page-products .prod-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-products .prod-hero__intro h1 {
  font-family: var(--qsu-font-head);
  font-size: clamp(2.3rem, 7vw, 4.2rem);
  line-height: 1.06;
  margin: 12px 0 18px;
  letter-spacing: .015em;
  color: var(--qsu-ink);
}

.page-products .prod-hero__intro p {
  max-width: 560px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--qsu-muted);
}

.page-products .prod-hero__intro > .qsu-lead {
  font-size: 1.12rem;
  color: var(--qsu-ink);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .prod-hero__index {
  background: #FFFFFF;
  border: 1px solid var(--qsu-line);
  border-top: 3px solid var(--qsu-gold);
  padding: 18px 20px 8px;
  box-shadow: 10px 10px 0 rgba(0, 194, 168, .08);
}

.page-products .prod-hero__index-title {
  font-family: var(--qsu-font-data);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--qsu-muted);
  margin-bottom: 8px;
}

.page-products .prod-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-index-list li {
  border-bottom: 1px solid var(--qsu-line);
}

.page-products .prod-index-list li:last-child {
  border-bottom: none;
}

.page-products .prod-index-list a {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 13px 4px;
  text-decoration: none;
  color: var(--qsu-ink);
  transition: color .2s ease, background .2s ease;
}

.page-products .prod-index-list a:hover,
.page-products .prod-index-list a:focus-visible {
  color: var(--qsu-primary);
  background: rgba(0, 194, 168, .05);
}

.page-products .prod-index__num {
  font-family: var(--qsu-font-data);
  font-size: .82rem;
  color: var(--qsu-muted);
}

.page-products .prod-index__name {
  font-weight: 700;
  font-size: .98rem;
}

.page-products .prod-index__meta {
  font-family: var(--qsu-font-data);
  font-size: .76rem;
  color: var(--qsu-accent);
}

/* ========== 主题带头部 ========== */
.page-products .prod-band-head {
  margin-bottom: 34px;
  color: var(--qsu-on-dark);
}

.page-products .prod-band-head--light {
  color: var(--qsu-ink);
}

.page-products .prod-band-head h2 {
  font-family: var(--qsu-font-head);
  font-size: clamp(1.8rem, 4.6vw, 2.8rem);
  margin: 10px 0 14px;
  line-height: 1.1;
  color: inherit;
  letter-spacing: .02em;
}

.page-products .prod-band-head .qsu-lead {
  max-width: 680px;
  margin-top: 14px;
}

.page-products .prod-band__signal {
  display: block;
  width: 160px;
  max-width: 70%;
  height: 14px;
  color: var(--qsu-accent);
  margin: 4px 0 2px;
}

.page-products .prod-band-head--light .prod-band__signal {
  color: var(--qsu-primary);
}

/* ========== 赛程与数据刷新 ========== */
.page-products .prod-schedule {
  position: relative;
  background: var(--qsu-primary);
  color: var(--qsu-on-dark);
  overflow: hidden;
}

.page-products .prod-schedule::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, transparent 0 22px, var(--qsu-accent) 22px 26px, transparent 26px 44px, var(--qsu-gold) 44px 46px, transparent 46px);
  opacity: .7;
  pointer-events: none;
  z-index: 1;
}

.page-products .prod-schedule__layout {
  display: grid;
  gap: 28px;
}

.page-products .prod-schedule__copy {
  display: grid;
  gap: 18px;
}

.page-products .prod-mini-card {
  background: rgba(10, 31, 68, .5);
  border: 1px solid rgba(211, 226, 245, .18);
  border-left: 3px solid var(--qsu-gold);
  border-radius: 12px;
  padding: 20px 20px 18px;
}

.page-products .prod-mini-card h3 {
  font-size: 1.08rem;
  color: #FFFFFF;
  margin: 0 0 10px;
}

.page-products .prod-mini-card p {
  font-size: .95rem;
  line-height: 1.65;
  color: rgba(244, 247, 252, .78);
  margin: 0;
}

.page-products .prod-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-products .prod-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-family: var(--qsu-font-data);
  font-size: .76rem;
  background: rgba(211, 226, 245, .15);
  color: rgba(244, 247, 252, .85);
}

.page-products .prod-tag--live {
  background: rgba(0, 194, 168, .18);
  color: var(--qsu-accent);
}

.page-products .prod-tag--done {
  background: rgba(16, 185, 129, .16);
  color: #4ade80;
}

.page-products .qsu-live {
  animation: prod-pulse 2s ease-in-out infinite;
}

@keyframes prod-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .55; }
}

/* ========== 五分钟更新轨道 ========== */
.page-products .prod-update-rail {
  margin-top: 20px;
  padding: 14px 14px 12px;
  border: 1px solid rgba(211, 226, 245, .22);
  border-radius: 10px;
  background: rgba(10, 31, 68, .35);
}

.page-products .prod-update-rail__labels,
.page-products .prod-update-rail__times {
  display: flex;
  justify-content: space-between;
  font-family: var(--qsu-font-data);
  font-size: .76rem;
}

.page-products .prod-update-rail__labels span:last-child {
  color: var(--qsu-accent);
}

.page-products .prod-update-rail__times {
  color: rgba(244, 247, 252, .5);
  margin-top: 4px;
}

.page-products .prod-update-rail__track {
  position: relative;
  height: 5px;
  background: rgba(211, 226, 245, .22);
  border-radius: 99px;
  margin: 12px 0 4px;
  overflow: hidden;
}

.page-products .prod-update-rail__track i {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 72%;
  background: linear-gradient(90deg, var(--qsu-accent), #10B981);
  border-radius: 99px;
}

/* ========== 图片容器 ========== */
.page-products .prod-figure {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
}

.page-products .prod-figure--wide {
  border: 1px solid rgba(211, 226, 245, .22);
  background: var(--qsu-paper);
}

.page-products .prod-figure--ratio {
  border: 1px solid rgba(211, 226, 245, .22);
  background: var(--qsu-paper);
}

.page-products .prod-figure--favorite {
  border: 1px solid var(--qsu-line);
  background: #FFFFFF;
}

.page-products .prod-figure--mt {
  margin-top: 32px;
}

.page-products .prod-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .4s ease;
}

.page-products .prod-figure:hover .prod-img {
  transform: scale(1.012);
}

.page-products .prod-figure figcaption {
  padding: 12px 16px;
  font-size: .84rem;
  line-height: 1.5;
  color: var(--qsu-muted);
  background: var(--qsu-paper);
}

/* ========== 统计区 ========== */
.page-products .prod-schedule__stats {
  display: grid;
  gap: 22px;
  margin-top: 42px;
  padding-top: 34px;
  border-top: 1px solid rgba(211, 226, 245, .18);
}

.page-products .prod-schedule__stats-copy h3 {
  font-size: 1.15rem;
  color: #FFFFFF;
  margin: 0 0 10px;
}

.page-products .prod-schedule__stats-copy p {
  font-size: .95rem;
  line-height: 1.65;
  color: rgba(244, 247, 252, .76);
  margin: 0 0 16px;
}

.page-products .prod-func-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 12px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-products .prod-func-list li {
  position: relative;
  padding: 10px 12px 10px 30px;
  background: rgba(10, 31, 68, .5);
  border: 1px solid rgba(211, 226, 245, .18);
  border-radius: 8px;
  font-size: .92rem;
  color: rgba(244, 247, 252, .85);
}

.page-products .prod-func-list li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--qsu-accent);
  border-radius: 50%;
  transform: translateY(-50%);
}

/* ========== 移动端体验 ========== */
.page-products .prod-mobile {
  background: #FFFFFF;
}

.page-products .prod-mobile__layout {
  display: grid;
  gap: 32px;
}

.page-products .prod-phone-wrap {
  position: relative;
  width: min(260px, 78%);
  margin: 0 auto;
}

.page-products .prod-badge-new {
  position: absolute;
  top: -12px;
  right: -10px;
  z-index: 3;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--qsu-gold);
  color: var(--qsu-ink);
  font-family: var(--qsu-font-data);
  font-size: .74rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(246, 185, 59, .35);
}

.page-products .prod-phone {
  position: relative;
  background: var(--qsu-primary);
  padding: 10px;
  border-radius: 36px;
  box-shadow: 0 22px 42px rgba(10, 31, 68, .26);
}

.page-products .prod-phone__notch {
  position: absolute;
  top: 17px;
  left: 50%;
  transform: translateX(-50%);
  width: 84px;
  height: 20px;
  background: var(--qsu-ink);
  border-radius: 99px;
  z-index: 2;
}

.page-products .prod-phone__homebar {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 84px;
  height: 4px;
  background: rgba(244, 247, 252, .72);
  border-radius: 99px;
}

.page-products .prod-phone__screen {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 26px;
  object-fit: cover;
}

/* ========== 手风琴 ========== */
.page-products .prod-expand {
  display: grid;
  gap: 12px;
}

.page-products .prod-expand__item {
  border: 1px solid var(--qsu-line);
  border-left: 3px solid var(--qsu-gold);
  border-radius: 12px;
  background: var(--qsu-paper);
  overflow: hidden;
}

.page-products .prod-expand__item summary {
  position: relative;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.02rem;
  padding: 17px 48px 17px 18px;
  color: var(--qsu-ink);
  list-style: none;
}

.page-products .prod-expand__item summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-expand__item summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--qsu-accent);
  border-bottom: 2px solid var(--qsu-accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s ease;
}

.page-products .prod-expand__item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-products .prod-expand__body {
  padding: 0 18px 18px;
  color: var(--qsu-muted);
  line-height: 1.65;
  font-size: .95rem;
}

.page-products .prod-expand__body p {
  margin: 0;
}

/* ========== 历史与归档 ========== */
.page-products .prod-archive {
  background: var(--qsu-ink);
  color: var(--qsu-on-dark);
}

.page-products .prod-archive__grid {
  display: grid;
  gap: 34px;
}

.page-products .prod-archive__copy p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(244, 247, 252, .78);
  margin: 0 0 22px;
}

.page-products .prod-timeline-item {
  position: relative;
  padding: 0 0 26px 30px;
}

.page-products .prod-timeline-item:last-child {
  padding-bottom: 0;
}

.page-products .prod-timeline-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 5px;
  bottom: 0;
  width: 1px;
  background: rgba(211, 226, 245, .22);
}

.page-products .prod-timeline-item:last-child::before {
  display: none;
}

.page-products .prod-timeline__dot {
  position: absolute;
  left: 5px;
  top: 4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--qsu-accent);
  box-shadow: 0 0 0 4px rgba(0, 194, 168, .18);
}

.page-products .prod-timeline__label {
  display: block;
  font-family: var(--qsu-font-data);
  color: var(--qsu-gold);
  font-size: .8rem;
  letter-spacing: .08em;
  margin-bottom: 6px;
}

.page-products .prod-timeline__text {
  font-size: .95rem;
  line-height: 1.55;
  color: rgba(244, 247, 252, .72);
  margin: 0;
}

/* ========== 收藏与追踪 ========== */
.page-products .prod-favorite {
  background: var(--qsu-paper);
}

.page-products .prod-favorite__layout {
  display: grid;
  gap: 28px;
}

.page-products .prod-favorite__copy > p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--qsu-muted);
  margin: 0 0 20px;
}

.page-products .prod-fav-demo {
  margin: 0 0 24px;
  padding: 18px;
  border: 1px solid var(--qsu-line);
  border-radius: 12px;
  background: #FFFFFF;
}

.page-products .prod-fav-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--qsu-line);
  background: var(--qsu-paper);
  padding: 10px 18px;
  border-radius: 999px;
  font: 700 .95rem var(--qsu-font-body);
  color: var(--qsu-ink);
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .1s ease;
}

.page-products .prod-fav-btn:hover,
.page-products .prod-fav-btn:focus-visible {
  border-color: var(--qsu-accent);
  background: rgba(0, 194, 168, .08);
  outline: none;
}

.page-products .prod-fav-btn:active {
  transform: scale(.97);
}

.page-products .prod-fav__star {
  color: var(--qsu-gold);
  fill: rgba(246, 185, 59, .18);
}

.page-products .prod-fav-note {
  font-size: .86rem;
  color: var(--qsu-muted);
  margin: 12px 0 0;
  line-height: 1.5;
}

/* ========== 收尾引导 ========== */
.page-products .prod-closing {
  position: relative;
  background: var(--qsu-ink);
  color: var(--qsu-on-dark);
}

.page-products .prod-closing::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--qsu-accent) 0 38%, var(--qsu-gold) 38% 62%, var(--qsu-accent) 62% 100%);
}

.page-products .prod-closing__inner {
  max-width: 720px;
}

.page-products .prod-closing__inner h2 {
  font-family: var(--qsu-font-head);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  margin: 10px 0 16px;
  line-height: 1.1;
  color: #FFFFFF;
}

.page-products .prod-closing__inner .qsu-lead {
  color: rgba(244, 247, 252, .78);
}

.page-products .prod-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ========== 响应式增强 ========== */
@media (min-width: 720px) {
  .page-products .prod-func-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .prod-schedule__copy {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products .prod-hero__grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 48px;
    align-items: start;
  }

  .page-products .prod-hero__index {
    transform: translateY(-14px);
  }

  .page-products .prod-schedule__layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-products .prod-schedule__stats {
    grid-template-columns: .9fr 1.1fr;
    align-items: center;
    gap: 42px;
  }

  .page-products .prod-mobile__layout {
    grid-template-columns: 1fr 1.1fr;
    align-items: center;
    gap: 44px;
  }

  .page-products .prod-phone-wrap {
    width: 300px;
    margin: 0 auto;
  }

  .page-products .prod-archive__grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-products .prod-favorite__layout {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 44px;
  }
}

/* ========== 减弱动效 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-products .qsu-live {
    animation: none;
  }

  .page-products .prod-img {
    transition: none;
  }

  .page-products .prod-figure:hover .prod-img {
    transform: none;
  }

  .page-products .prod-fav-btn {
    transition: none;
  }

  .page-products .prod-fav-btn:active {
    transform: none;
  }

  .page-products .prod-expand__item summary::after {
    transition: none;
  }
}