/* ===== 功能中心 /features/ ===== */

.page-products {
  --feat-rail: 232px;
  --feat-pad: 54px;
}

/* ---------- 首屏 ---------- */

.page-products .feat-hero {
  position: relative;
  padding: 34px 0 10px;
  overflow: hidden;
}

.page-products .feat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(118% 76% at 8% 0%, rgba(53, 240, 200, .11), transparent 60%),
    radial-gradient(90% 60% at 96% 8%, rgba(14, 125, 106, .16), transparent 62%);
  pointer-events: none;
}

.page-products .feat-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-products .feat-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mint-400);
  background: var(--glass-cyan);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  margin: 0 0 18px;
}

.page-products .feat-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-products .feat-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 54px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: .015em;
  color: var(--paper);
  margin: 0 0 18px;
}

.page-products .feat-hero__lede {
  font-size: 17px;
  line-height: 1.78;
  color: var(--paper);
  margin: 0 0 14px;
  max-width: 54ch;
}

.page-products .feat-hero__sub {
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
  margin: 0;
  max-width: 54ch;
}

.page-products .feat-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-700);
}

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

.page-products .feat-hero__figure figcaption {
  font-size: 13px;
  line-height: 1.62;
  color: var(--mute);
  padding: 12px 14px;
  border-top: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-products .feat-hero {
    padding-top: 40px;
  }
  .page-products .feat-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 46px;
    align-items: center;
  }
}

/* ---------- 关键读数 ---------- */

.page-products .feat-stats {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-products .feat-stat {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(180deg, var(--ink-700), var(--ink-800));
}

.page-products .feat-stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1;
  color: var(--mint-400);
}

.page-products .feat-stat__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mint-400);
  margin-left: 4px;
}

.page-products .feat-stat__label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--mute);
}

@media (min-width: 900px) {
  .page-products .feat-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 38px;
  }
}

/* ---------- 双栏骨架 ---------- */

.page-products .feat-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 50px;
}

@media (min-width: 1000px) {
  .page-products .feat-layout {
    grid-template-columns: var(--feat-rail) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    padding-top: 64px;
  }
}

/* 左栏索引 */

.page-products .feat-rail {
  position: relative;
  padding-top: 14px;
}

.page-products .feat-rail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--mint-400), var(--teal-700) 58%, transparent);
}

.page-products .feat-index__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 12px;
}

.page-products .feat-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .feat-index__list > li {
  flex: 0 0 auto;
}

.page-products .feat-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-cyan);
  color: var(--mute);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .feat-index__link:hover,
.page-products .feat-index__link:focus-visible {
  color: var(--mint-200);
  border-color: var(--line-strong);
  background: rgba(53, 240, 200, .14);
}

.page-products .feat-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal-700);
  transition: color var(--dur) var(--ease);
}

.page-products .feat-index__link:hover .feat-index__num,
.page-products .feat-index__link:focus-visible .feat-index__num {
  color: var(--mint-400);
}

@media (min-width: 1000px) {
  .page-products .feat-rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
  .page-products .feat-index__list {
    flex-direction: column;
    gap: 3px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-products .feat-index__list > li {
    flex: 1 1 auto;
  }
  .page-products .feat-index__link {
    display: flex;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
  }
  .page-products .feat-index__link:hover,
  .page-products .feat-index__link:focus-visible {
    border-left-color: var(--mint-400);
    background: var(--glass-cyan);
  }
}

/* ---------- 章节 ---------- */

.page-products .feat-sec {
  scroll-margin-top: calc(var(--bar-h) + 24px);
  padding-bottom: var(--feat-pad);
}

.page-products .feat-sec + .feat-sec {
  border-top: 1px solid var(--line);
  padding-top: var(--feat-pad);
}

.page-products .feat-sec__head {
  display: flex;
  align-items: baseline;
  gap: 13px;
  margin-bottom: 20px;
}

.page-products .feat-sec__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  line-height: 1.1;
  color: var(--mint-400);
  padding-left: 10px;
  border-left: 2px solid var(--mint-400);
}

.page-products .feat-sec__idx--ember {
  color: var(--ember-500);
  border-left-color: var(--ember-500);
}

.page-products .feat-sec__title {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.7vw, 32px);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: .015em;
  color: var(--paper);
  margin: 0;
}

.page-products .feat-sec__lede {
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper);
  margin: 0 0 22px;
  max-width: 62ch;
}

/* ---------- 分栏面板 ---------- */

.page-products .feat-split2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 720px) {
  .page-products .feat-split2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-products .feat-pane {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink-700);
}

.page-products .feat-pane--line {
  border-top: 3px solid var(--teal-700);
}

.page-products .feat-pane--data {
  border-top: 3px solid var(--mint-400);
  box-shadow: 0 18px 44px -30px rgba(53, 240, 200, .6);
}

.page-products .feat-pane__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mint-400);
  background: var(--glass-cyan);
  border-radius: 3px;
  padding: 4px 9px;
  margin: 0 0 12px;
}

.page-products .feat-pane--line .feat-pane__tag {
  color: var(--mute);
  background: rgba(166, 198, 189, .08);
}

.page-products .feat-pane__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  margin: 0 0 14px;
}

/* 通用小列表 */

.page-products .feat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .feat-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mute);
}

.page-products .feat-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint-400);
  opacity: .72;
}

/* ---------- 图片容器 ---------- */

.page-products .feat-figure {
  margin: 22px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-700);
}

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

.page-products .feat-figure figcaption {
  font-size: 13px;
  line-height: 1.62;
  color: var(--mute);
  padding: 11px 14px;
  border-top: 1px solid var(--line);
}

/* ---------- 热区可视化 ---------- */

.page-products .feat-heat {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 6px;
}

.page-products .feat-heat__viz {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink-700);
  padding: 12px;
}

.page-products .feat-heat__viz svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .feat-heat__read {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-products .feat-heat__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--glass-cyan);
}

.page-products .feat-heat__row dt {
  font-size: 13px;
  color: var(--mute);
}

.page-products .feat-heat__row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper);
  text-align: right;
}

.page-products .feat-heat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  color: var(--mint-400);
}

@media (min-width: 820px) {
  .page-products .feat-heat {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 20px;
    align-items: stretch;
  }
}

/* ---------- 半场摘要 ---------- */

.page-products .feat-half {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.page-products .feat-half .feat-figure {
  margin: 0;
}

.page-products .feat-half__text {
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-products .feat-half__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .feat-half__list li {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--ink-700);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-products .feat-half__list strong {
  color: var(--mint-400);
  font-weight: 600;
  margin-right: 4px;
}

.page-products .feat-half__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mute);
  padding-left: 12px;
  border-left: 2px solid var(--teal-700);
}

@media (min-width: 800px) {
  .page-products .feat-half {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 30px;
  }
}

/* ---------- 适配清单 ---------- */

.page-products .feat-checks {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-products .feat-check {
  position: relative;
}

.page-products .feat-check__box {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .feat-check__label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--ink-700);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .feat-check__label:hover {
  border-color: var(--line-strong);
}

.page-products .feat-check__box:focus-visible + .feat-check__label {
  outline: 2px solid var(--mint-200);
  outline-offset: 2px;
}

.page-products .feat-check__box:checked + .feat-check__label {
  border-color: var(--ember-line);
  background: linear-gradient(90deg, rgba(255, 160, 122, .13), var(--ink-700) 74%);
  box-shadow: inset 2px 0 0 var(--ember-300);
}

.page-products .feat-check__mark {
  position: relative;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .feat-check__box:checked + .feat-check__label .feat-check__mark {
  background: var(--ember-300);
  border-color: var(--ember-300);
}

.page-products .feat-check__box:checked + .feat-check__label .feat-check__mark::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 8px;
  border: solid var(--ink-950);
  border-width: 0 2px 2px 0;
  transform: rotate(42deg);
}

.page-products .feat-check__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal-700);
  transition: color var(--dur) var(--ease);
}

.page-products .feat-check__box:checked + .feat-check__label .feat-check__num {
  color: var(--ember-300);
}

.page-products .feat-check__name {
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
}

.page-products .feat-check__val {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.4;
  color: var(--mute);
  text-align: right;
}

@media (min-width: 760px) {
  .page-products .feat-checks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 14px;
  }
}

/* ---------- 排名速查 ---------- */

.page-products .feat-roadmap {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-products .feat-roadmap__step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint-400);
  border-radius: 6px;
  background: var(--ink-700);
}

.page-products .feat-roadmap__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--ember-500);
  padding-top: 3px;
}

.page-products .feat-roadmap__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-products .feat-rankmeta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-products .feat-rankmeta__item {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-cyan);
  font-size: 13px;
  color: var(--mute);
}

.page-products .feat-rankmeta__item strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  color: var(--ember-500);
  margin-right: 4px;
}

/* ---------- 一周搭配 ---------- */

.page-products .feat-week {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .feat-week__card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink-700);
}

.page-products .feat-week__card--focus {
  background: linear-gradient(180deg, rgba(53, 240, 200, .07), var(--ink-700) 42%);
  border-color: var(--line-strong);
}

.page-products .feat-week__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mint-400);
  margin: 0 0 8px;
}

.page-products .feat-week__title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .015em;
  color: var(--paper);
  margin: 0 0 14px;
}

@media (min-width: 780px) {
  .page-products .feat-week {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 收尾引导 ---------- */

.page-products .feat-cta {
  margin-top: var(--feat-pad);
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(53, 240, 200, .12), transparent 58%),
    var(--ink-700);
  overflow: hidden;
}

.page-products .feat-cta__inner {
  padding: 28px 22px 30px;
}

.page-products .feat-cta__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  letter-spacing: .015em;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-products .feat-cta__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
  margin: 0 0 20px;
  max-width: 56ch;
}

.page-products .feat-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .feat-footline {
  display: flex;
  justify-content: flex-end;
  padding: 36px 0 8px;
}

@media (min-width: 720px) {
  .page-products .feat-cta__inner {
    padding: 34px 32px 36px;
  }
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-products .feat-index__link,
  .page-products .feat-check__label,
  .page-products .feat-check__mark,
  .page-products .feat-check__num {
    transition: none;
  }
}
<<<END>>>