.page-products {
  background: var(--xc-paper);
  color: var(--xc-ink);
  font-family: var(--xc-font-body);
  font-size: 16px;
  line-height: 1.8;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products a {
  color: inherit;
  text-decoration: none;
}

/* ---------- 首屏 ---------- */

.page-products .feat-hero {
  padding: 34px 0 52px;
  border-bottom: 1px solid var(--xc-line);
  background: linear-gradient(180deg, rgba(240, 129, 42, 0.07), rgba(240, 129, 42, 0) 62%);
}

.page-products .feat-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
  line-height: 1.6;
}

.page-products .feat-crumb__link {
  color: var(--xc-steel);
}

.page-products .feat-crumb__link:hover,
.page-products .feat-crumb__link:focus-visible {
  color: var(--xc-apricot);
}

.page-products .feat-crumb__sep {
  color: var(--xc-steel-light);
}

.page-products .feat-crumb__here {
  font-weight: 700;
  color: var(--xc-ink);
}

.page-products .feat-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--xc-font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--xc-steel);
}

.page-products .feat-kicker::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  background: var(--xc-gold);
}

.page-products .feat-hero__title {
  margin: 18px 0 0;
  max-width: 20ch;
  font-family: var(--xc-font-head);
  font-size: clamp(27px, 6.4vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-products .feat-hero__lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--xc-steel);
}

.page-products .feat-hero__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .feat-hero__nav a {
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid var(--xc-line);
  font-size: 13px;
  font-weight: 600;
  color: var(--xc-green-deep);
  transition: border-color 0.2s var(--xc-ease), color 0.2s var(--xc-ease), background-color 0.2s var(--xc-ease);
}

.page-products .feat-hero__nav a:hover,
.page-products .feat-hero__nav a:focus-visible {
  border-color: var(--xc-apricot);
  color: var(--xc-apricot);
  background: rgba(240, 129, 42, 0.08);
}

/* ---------- 章节骨架 ---------- */

.page-products .feat-section {
  padding: 54px 0;
  border-bottom: 1px solid var(--xc-line);
}

.page-products .feat-section--deep {
  background: var(--xc-green-deep);
  color: var(--xc-steel-light);
  border-bottom-color: transparent;
}

.page-products .feat-section--steel {
  background: var(--xc-steel-light);
  color: var(--xc-ink);
  border-bottom-color: rgba(16, 22, 25, 0.08);
}

.page-products .feat-section--indigo {
  background: var(--xc-indigo);
  color: var(--xc-steel-light);
  border-bottom-color: transparent;
}

.page-products .feat-section--wine {
  position: relative;
  padding-top: 60px;
}

.page-products .feat-section--wine::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 6px;
  background: var(--xc-wine);
}

.page-products .feat-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  align-items: start;
  margin-bottom: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--xc-line);
}

.page-products .feat-head__num {
  padding-top: 2px;
  font-family: var(--xc-font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--xc-apricot);
}

.page-products .feat-head__body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-products .feat-head__title {
  margin: 0;
  font-family: var(--xc-font-head);
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-products .feat-section--deep .feat-head,
.page-products .feat-section--indigo .feat-head {
  border-top-color: var(--xc-line-dark);
}

.page-products .feat-section--deep .feat-head__num,
.page-products .feat-section--indigo .feat-head__num {
  color: var(--xc-gold);
}

.page-products .feat-section--deep .feat-head__title,
.page-products .feat-section--indigo .feat-head__title {
  color: var(--xc-paper);
}

.page-products .feat-section--deep .feat-kicker,
.page-products .feat-section--indigo .feat-kicker {
  color: var(--xc-apricot-soft);
}

/* ---------- 图文错位栅格 ---------- */

.page-products .feat-split {
  display: grid;
  gap: 26px;
}

.page-products .feat-split__text {
  min-width: 0;
}

.page-products .feat-split__text p:not(.feat-lead) {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--xc-steel);
}

.page-products .feat-split__text p:not(.feat-lead):last-child {
  margin-bottom: 0;
}

.page-products .feat-lead {
  margin: 0 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--xc-apricot);
  font-family: var(--xc-font-head);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.55;
  color: var(--xc-green-deep);
}

.page-products .feat-section--deep .feat-split__text p:not(.feat-lead),
.page-products .feat-section--indigo .feat-split__text p:not(.feat-lead) {
  color: rgba(215, 226, 232, 0.88);
}

.page-products .feat-section--deep .feat-lead,
.page-products .feat-section--indigo .feat-lead {
  color: var(--xc-gold);
  border-left-color: var(--xc-gold);
}

.page-products .feat-points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--xc-line);
}

.page-products .feat-points li {
  padding: 13px 0;
  border-bottom: 1px solid var(--xc-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--xc-steel);
}

.page-products .feat-points__k {
  display: inline-block;
  min-width: 82px;
  margin-right: 10px;
  font-family: var(--xc-font-head);
  font-size: 15px;
  font-weight: 800;
  color: var(--xc-green-deep);
}

/* ---------- 图片 ---------- */

.page-products .feat-media {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--xc-line);
  background: var(--xc-green-mid);
}

.page-products .feat-media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .feat-media__cap {
  padding: 11px 14px;
  border-top: 1px solid var(--xc-line);
  background: var(--xc-paper);
  font-size: 13px;
  line-height: 1.6;
  color: var(--xc-steel);
}

.page-products .feat-section--deep .feat-media,
.page-products .feat-section--indigo .feat-media {
  border-color: var(--xc-line-dark);
}

.page-products .feat-section--deep .feat-media__cap,
.page-products .feat-section--indigo .feat-media__cap {
  border-top-color: var(--xc-line-dark);
  background: rgba(16, 22, 25, 0.3);
  color: var(--xc-steel-light);
}

/* ---------- 三级入口链条 ---------- */

.page-products .feat-flow {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--xc-line);
}

.page-products .feat-flow__node {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--xc-line);
}

.page-products .feat-flow__idx {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--xc-gold);
  color: var(--xc-ink);
  font-family: var(--xc-font-num);
  font-size: 13px;
  font-weight: 700;
}

.page-products .feat-flow__node strong {
  font-family: var(--xc-font-head);
  font-size: 16px;
  font-weight: 800;
  color: var(--xc-green-deep);
}

.page-products .feat-flow__sub {
  margin-left: auto;
  font-size: 13px;
  color: var(--xc-steel);
}

/* ---------- 轮次标签示意 ---------- */

.page-products .feat-rail {
  display: flex;
  gap: 0;
  margin-top: 34px;
  padding-bottom: 2px;
  overflow-x: auto;
  border-bottom: 1px solid var(--xc-line-dark);
  scrollbar-width: thin;
}

.page-products .feat-rail__item {
  position: relative;
  flex: none;
  padding: 11px 20px;
  font-family: var(--xc-font-head);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  color: var(--xc-steel-light);
}

.page-products .feat-rail__item.is-on {
  color: var(--xc-apricot);
}

.page-products .feat-rail__item.is-on::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: 0;
  left: 14px;
  height: 3px;
  background: var(--xc-apricot);
}

/* ---------- 分段切换 ---------- */

.page-products .feat-tabs {
  margin-top: 32px;
  border: 1px solid var(--xc-line);
  background: var(--xc-paper);
}

.page-products .feat-tabs__rail {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  border-bottom: 1px solid var(--xc-line);
  background: rgba(215, 226, 232, 0.55);
  scrollbar-width: thin;
}

.page-products .feat-tabs__btn {
  flex: none;
  padding: 13px 22px;
  border: 0;
  border-right: 1px solid var(--xc-line);
  background: transparent;
  font-family: var(--xc-font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--xc-steel);
  cursor: pointer;
  transition: color 0.2s var(--xc-ease), background-color 0.2s var(--xc-ease);
}

.page-products .feat-tabs__btn:last-child {
  border-right: 0;
}

.page-products .feat-tabs__btn:hover {
  color: var(--xc-apricot);
}

.page-products .feat-tabs__btn[aria-selected="true"] {
  background: var(--xc-paper);
  color: var(--xc-ink);
  box-shadow: inset 0 -3px 0 var(--xc-apricot);
}

.page-products .feat-tabs__btn:focus-visible {
  outline: 2px solid var(--xc-gold);
  outline-offset: -2px;
}

.page-products .feat-tabs__panel {
  padding: 24px 20px;
}

.page-products .feat-tabs__panel h3 {
  margin: 0 0 10px;
  font-family: var(--xc-font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--xc-green-deep);
}

.page-products .feat-tabs__panel p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--xc-steel);
}

/* ---------- 步骤与旁注 ---------- */

.page-products .feat-steps {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: feat-step;
}

.page-products .feat-steps li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--xc-steel);
  counter-increment: feat-step;
}

.page-products .feat-steps li:last-child {
  margin-bottom: 0;
}

.page-products .feat-steps li::before {
  content: counter(feat-step);
  position: absolute;
  top: 5px;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--xc-gold);
  color: var(--xc-ink);
  font-family: var(--xc-font-num);
  font-size: 12px;
  font-weight: 700;
}

.page-products .feat-note {
  margin: 0;
  padding: 12px 14px;
  border-left: 3px solid var(--xc-apricot);
  background: rgba(240, 129, 42, 0.08);
  font-size: 14px;
  line-height: 1.75;
  color: var(--xc-steel);
}

.page-products .feat-note a {
  font-weight: 700;
  color: var(--xc-apricot);
  border-bottom: 1px solid currentColor;
}

/* ---------- 偏好设置面板 ---------- */

.page-products .feat-pref {
  margin-top: 32px;
  border: 1px solid var(--xc-line);
  background: var(--xc-paper);
}

.page-products .feat-pref__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 15px 16px;
  border-bottom: 1px solid var(--xc-line);
}

.page-products .feat-pref__row:last-child {
  border-bottom: 0;
}

.page-products .feat-pref__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--xc-steel);
}

.page-products .feat-pref__seg {
  display: flex;
  flex-wrap: wrap;
  width: fit-content;
  max-width: 100%;
  border: 1px solid var(--xc-line);
}

.page-products .feat-pref__seg > span {
  padding: 6px 16px;
  border-right: 1px solid var(--xc-line);
  font-size: 13px;
  font-weight: 600;
  color: var(--xc-steel);
}

.page-products .feat-pref__seg > span:last-child {
  border-right: 0;
}

.page-products .feat-pref__seg > span.is-on {
  background: var(--xc-green-deep);
  color: var(--xc-paper);
}

.page-products .feat-pref__meter {
  display: block;
  min-width: 0;
  height: 8px;
  border: 1px solid var(--xc-line);
  background: var(--xc-steel-light);
}

.page-products .feat-pref__fill {
  display: block;
  width: 60%;
  height: 100%;
  background: var(--xc-apricot);
}

.page-products .feat-pref__count {
  font-family: var(--xc-font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--xc-green-deep);
  white-space: nowrap;
}

/* ---------- 折叠排查组 ---------- */

.page-products .feat-folds {
  margin-top: 32px;
  border-top: 1px solid var(--xc-line-dark);
}

.page-products .feat-fold {
  border-bottom: 1px solid var(--xc-line-dark);
}

.page-products .feat-fold__h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-products .feat-fold__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 17px 4px;
  border: 0;
  background: transparent;
  font-family: var(--xc-font-head);
  font-size: 16px;
  font-weight: 800;
  text-align: left;
  color: var(--xc-paper);
  cursor: pointer;
}

.page-products .feat-fold__btn:focus-visible {
  outline: 2px solid var(--xc-gold);
  outline-offset: 2px;
}

.page-products .feat-fold__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-products .feat-fold__mark::before,
.page-products .feat-fold__mark::after {
  content: "";
  position: absolute;
  background: var(--xc-gold);
}

.page-products .feat-fold__mark::before {
  top: 6px;
  right: 0;
  left: 0;
  height: 2px;
}

.page-products .feat-fold__mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  transition: transform 0.2s var(--xc-ease), opacity 0.2s var(--xc-ease);
}

.page-products .feat-fold__btn[aria-expanded="true"] .feat-fold__mark::after {
  opacity: 0;
  transform: scaleY(0);
}

.page-products .feat-fold__panel {
  padding: 0 4px 20px;
}

.page-products .feat-fold__panel p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(215, 226, 232, 0.9);
}

/* ---------- 收束 ---------- */

.page-products .feat-next {
  padding-bottom: 72px;
  border-bottom: 0;
}

.page-products .feat-next__title {
  margin: 12px 0 0;
  font-family: var(--xc-font-head);
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 900;
  line-height: 1.25;
}

.page-products .feat-next__list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--xc-line);
}

.page-products .feat-next__list li {
  border-bottom: 1px solid var(--xc-line);
}

.page-products .feat-next__list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 17px 4px;
  transition: padding-left 0.22s var(--xc-ease), color 0.22s var(--xc-ease);
}

.page-products .feat-next__list a:hover,
.page-products .feat-next__list a:focus-visible {
  padding-left: 14px;
  color: var(--xc-apricot);
}

.page-products .feat-next__list strong {
  font-family: var(--xc-font-head);
  font-size: 17px;
  font-weight: 800;
}

.page-products .feat-next__list span {
  font-size: 14px;
  color: var(--xc-steel);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 640px) {
  .page-products .feat-pref__row {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 14px;
    padding: 16px 20px;
  }

  .page-products .feat-pref__row--split {
    grid-template-columns: 110px minmax(0, 1fr) auto;
  }
}

@media (min-width: 880px) {
  .page-products .feat-hero {
    padding: 52px 0 74px;
  }

  .page-products .feat-section {
    padding: 78px 0;
  }

  .page-products .feat-section--wine {
    padding-top: 84px;
  }

  .page-products .feat-head {
    column-gap: 26px;
    margin-bottom: 44px;
  }

  .page-products .feat-head__num {
    font-size: 38px;
  }

  .page-products .feat-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }

  .page-products .feat-split--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .feat-split--flip .feat-media {
    order: -1;
  }

  .page-products .feat-flow {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .feat-flow__node {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 22px 24px;
    border-bottom: 0;
    border-left: 1px solid var(--xc-line);
  }

  .page-products .feat-flow__node:first-child {
    border-left: 0;
  }

  .page-products .feat-flow__idx {
    align-self: flex-start;
  }

  .page-products .feat-flow__sub {
    margin-left: 0;
  }

  .page-products .feat-tabs {
    margin-top: 44px;
  }

  .page-products .feat-tabs__panel {
    padding: 30px 28px;
  }

  .page-products .feat-rail {
    margin-top: 44px;
  }

  .page-products .feat-folds {
    margin-top: 44px;
  }

  .page-products .feat-pref {
    margin-top: 44px;
  }
}