.page-products {
  --pp-pad: clamp(18px, 3vw, 30px);
}

/* 面包屑 */
.page-products .pp-crumb { padding: 20px 0 0; }
.page-products .pp-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  letter-spacing: .02em;
}
.page-products .pp-crumb .breadcrumb__item { color: var(--stone); }
.page-products .pp-crumb a.breadcrumb__item {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.page-products .pp-crumb a.breadcrumb__item:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-2);
}
.page-products .pp-crumb .breadcrumb__item[aria-current="page"] { color: var(--paper); }

/* 首屏 */
.page-products .pp-hero { padding-top: clamp(26px, 5vw, 48px); }
.page-products .pp-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}
.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: 12px 0 18px;
}
.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-products .pp-hero__media {
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}
.page-products .media img {
  display: block;
  width: 100%;
  height: auto;
}

/* 三条价格条带 */
.page-products .pp-prices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 38px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-products .pp-price {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3.4vw, 30px) clamp(18px, 3vw, 26px);
  background: var(--ink-2);
}
.page-products .pp-price::before {
  content: "";
  display: block;
  height: 6px;
  margin-bottom: 4px;
  background-image: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 12px);
}
.page-products .pp-price__num {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.05rem, 6vw, 3.05rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
}
.page-products .pp-price__num--flame { color: var(--flame); }
.page-products .pp-price__unit {
  font-family: var(--font-body);
  font-size: .28em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--stone);
  white-space: nowrap;
}
.page-products .pp-price__note {
  font-size: .82rem;
  line-height: 1.65;
  color: var(--stone);
}

/* 注册档位切换 */
.page-products .pp-switch {
  position: relative;
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 34px);
}
.page-products .pp-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.page-products .pp-switch__rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-products .pp-switch__tab {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 12px 12px;
  background: var(--ink-2);
  cursor: pointer;
  user-select: none;
  transition: background .25s ease;
}
.page-products .pp-switch__tab-name {
  font-size: .92rem;
  font-weight: 700;
  color: var(--paper);
}
.page-products .pp-switch__tab-price {
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--stone);
}
.page-products .pp-switch__tab::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 6px;
  background: transparent;
  transition: background .25s ease;
}
.page-products #pp-tier-base:checked ~ .pp-switch__rail label[for="pp-tier-base"],
.page-products #pp-tier-std:checked ~ .pp-switch__rail label[for="pp-tier-std"],
.page-products #pp-tier-event:checked ~ .pp-switch__rail label[for="pp-tier-event"] {
  background: var(--moss);
}
.page-products #pp-tier-base:checked ~ .pp-switch__rail label[for="pp-tier-base"]::after,
.page-products #pp-tier-std:checked ~ .pp-switch__rail label[for="pp-tier-std"]::after,
.page-products #pp-tier-event:checked ~ .pp-switch__rail label[for="pp-tier-event"]::after {
  background: var(--cyan);
}
.page-products #pp-tier-base:focus-visible ~ .pp-switch__rail label[for="pp-tier-base"],
.page-products #pp-tier-std:focus-visible ~ .pp-switch__rail label[for="pp-tier-std"],
.page-products #pp-tier-event:focus-visible ~ .pp-switch__rail label[for="pp-tier-event"] {
  outline: 2px solid var(--cyan-soft);
  outline-offset: -2px;
}
.page-products .pp-switch__panels {
  padding: var(--pp-pad);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(18, 58, 46, .62), rgba(12, 32, 25, .95));
}
.page-products .pp-panel { display: none; }
.page-products #pp-tier-base:checked ~ .pp-switch__panels .pp-panel--base,
.page-products #pp-tier-std:checked ~ .pp-switch__panels .pp-panel--std,
.page-products #pp-tier-event:checked ~ .pp-switch__panels .pp-panel--event {
  display: block;
}
.page-products .pp-panel__price {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 4vw, 2.05rem);
  font-weight: 700;
  color: var(--flame);
}
.page-products .pp-panel__price span {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: .42em;
  font-weight: 500;
  color: var(--stone);
}
.page-products .pp-panel__title {
  margin: 0 0 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--paper);
}
.page-products .pp-panel__lead {
  margin: 0 0 18px;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--stone);
}
.page-products .pp-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pp-panel__list li {
  position: relative;
  padding-left: 20px;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--paper);
}
.page-products .pp-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}
.page-products .pp-tiers__media { margin-top: clamp(24px, 4vw, 38px); }

/* 面板变更 */
.page-products .pp-fold {
  margin-top: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  background: var(--ink-2);
}
.page-products .pp-fold__toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.page-products .pp-fold__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--cyan);
}
.page-products .pp-fold__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}
.page-products .pp-fold__sign::before,
.page-products .pp-fold__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}
.page-products .pp-fold__sign::before { left: 0; right: 0; top: 6px; height: 1px; }
.page-products .pp-fold__sign::after {
  top: 0; bottom: 0; left: 6px; width: 1px;
  transition: transform .25s ease, opacity .25s ease;
}
.page-products .pp-fold__toggle:checked ~ .pp-fold__head .pp-fold__sign::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-products .pp-fold__body { display: none; padding: 4px 18px 20px; }
.page-products .pp-fold__toggle:checked ~ .pp-fold__body { display: block; }
.page-products .pp-fold__toggle:focus-visible ~ .pp-fold__head {
  outline: 2px solid var(--cyan-soft);
  outline-offset: -2px;
}
.page-products .pp-change__layout {
  display: grid;
  gap: 22px;
}
.page-products .pp-change__side { display: grid; gap: 18px; }
.page-products .pp-change__card { padding: 18px; }
.page-products .pp-change__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .pp-change__facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  font-size: .86rem;
}
.page-products .pp-change__facts li:last-child { border-bottom: 0; padding-bottom: 0; }
.page-products .pp-change__fact-k { color: var(--stone); }
.page-products .pp-change__fact-v { color: var(--flame); }
.page-products .pp-change__media { border: 1px solid var(--line); overflow: hidden; }
.page-products .pp-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products .pp-timeline__step {
  position: relative;
  padding: 0 0 26px 28px;
  border-left: 1px solid var(--line);
}
.page-products .pp-timeline__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}
.page-products .pp-timeline__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}
.page-products .pp-timeline__step-title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}
.page-products .pp-timeline__step-text {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--stone);
}

/* 赛事报名 */
.page-products .pp-signup__grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(24px, 4vw, 34px);
}
.page-products .pp-signup__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}
.page-products .pp-signup__row:last-child { border-bottom: 1px solid var(--line-soft); }
.page-products .pp-signup__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}
.page-products .pp-signup__price {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--flame);
  white-space: nowrap;
  text-align: right;
}
.page-products .pp-signup__desc {
  grid-column: 1 / -1;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--stone);
}
.page-products .pp-signup__media { border: 1px solid var(--line); overflow: hidden; }
.page-products .pp-signup__note {
  margin: 20px 0 16px;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--stone);
}

/* 导出记录 */
.page-products .pp-records__grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(24px, 4vw, 34px);
}
.page-products .pp-records__media { border: 1px solid var(--line); overflow: hidden; }
.page-products .pp-records__panel { padding: var(--pp-pad); }
.page-products .pp-records__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .pp-records__list li {
  display: flex;
  gap: 12px;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--paper);
}
.page-products .pp-records__list .mono {
  flex: none;
  padding-top: .3em;
  font-size: .76rem;
  color: var(--cyan);
}

/* 短问答 */
.page-products .pp-ask__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 34px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-products .pp-ask__item {
  padding: 22px 20px;
  background: var(--ink);
}
.page-products .pp-ask__q {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}
.page-products .pp-ask__a {
  margin: 0;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--stone);
}
.page-products .pp-ask__more {
  margin: 22px 0 0;
  font-size: .88rem;
}
.page-products .pp-ask__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-2);
  transition: color .2s ease, border-color .2s ease;
}
.page-products .pp-ask__more a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

/* 收尾入口 */
.page-products .pp-go__inner {
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--line-2);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 90, 43, .14), transparent 58%),
    linear-gradient(150deg, rgba(18, 58, 46, .9), rgba(7, 19, 15, .96));
}
.page-products .pp-go__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2.05rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-products .pp-go__text {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--stone);
}
.page-products .pp-go__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式 */
@media (min-width: 760px) {
  .page-products .pp-prices { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .pp-ask__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 7.5fr) minmax(0, 4.5fr);
  }
  .page-products .pp-switch {
    grid-template-columns: minmax(0, 258px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }
  .page-products .pp-switch__rail { grid-template-columns: minmax(0, 1fr); }
  .page-products .pp-switch__tab { padding: 20px 18px 16px; }
  .page-products .pp-records__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
  .page-products .pp-signup__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 36px;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-products .pp-fold__toggle { display: none; }
  .page-products .pp-fold__head { padding: 20px 26px; cursor: default; }
  .page-products .pp-fold__sign { display: none; }
  .page-products .pp-fold__body { display: block; padding: 0 26px 26px; }
  .page-products .pp-change__layout {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-hero__media { margin-bottom: 6px; }
  .page-products .pp-panel__lead { max-width: 56ch; }
}
<<<END>>>