.page-home {
  --home-dark-line: rgba(126, 147, 168, 0.28);
  --home-dark-panel: rgba(34, 52, 74, 0.72);
}

.page-home [id^="sec-"],
.page-home .home-hero {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 64px;
  background: var(--k8-indigo);
  color: var(--k8-white);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(43, 227, 198, 0.09), rgba(14, 27, 44, 0) 46%),
    repeating-linear-gradient(90deg, rgba(126, 147, 168, 0.1) 0 1px, transparent 1px 120px);
  pointer-events: none;
}

.page-home .home-hero__shell {
  position: relative;
}

.page-home .home-hero__crumb {
  margin-bottom: 40px;
}

.page-home .home-hero__grid {
  display: grid;
  gap: 40px;
}

.page-home .home-toc__label {
  margin: 0 0 12px;
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--k8-mist);
}

.page-home .home-toc {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-dark-line);
}

.page-home .home-toc__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--home-dark-line);
  text-decoration: none;
  color: var(--k8-white);
  transition: color 180ms var(--k8-ease), border-color 180ms var(--k8-ease);
}

.page-home .home-toc__num {
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--k8-cyan);
}

.page-home .home-toc__title {
  font-size: 15px;
  line-height: 1.4;
}

.page-home .home-toc__meta {
  grid-column: 2;
  font-family: var(--k8-font-data);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--k8-mist);
}

.page-home .home-toc__link:hover,
.page-home .home-toc__link:focus-visible {
  color: var(--k8-cyan);
  border-bottom-color: var(--k8-cyan);
}

.page-home .home-hero__title {
  margin: 0 0 12px;
  color: var(--k8-white);
}

.page-home .home-hero__sub {
  margin: 0 0 20px;
  font-family: var(--k8-font-data);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--k8-cyan);
}

.page-home .home-hero__lede {
  margin: 0 0 40px;
  max-width: 62ch;
  color: rgba(244, 247, 250, 0.82);
}

.page-home .home-hero__media {
  border-radius: var(--k8-r-lg);
  overflow: hidden;
  border: 1px solid var(--home-dark-line);
}

.page-home .home-hero__media .k8-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-hero__facts {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-dark-line);
}

.page-home .home-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--home-dark-line);
}

.page-home .home-hero__fact-num {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--k8-cyan);
}

.page-home .home-hero__fact-txt {
  font-size: 13.5px;
  color: var(--k8-mist);
}

/* ---------- 通用章节头 ---------- */
.page-home .home-sec__head {
  max-width: 760px;
  margin-bottom: 40px;
}

.page-home .home-sec__head--dark {
  color: var(--k8-white);
}

.page-home .home-sec__head--dark .k8-h2 {
  color: var(--k8-white);
}

.page-home .home-sec__head--dark .k8-eyebrow {
  color: var(--k8-cyan);
}

.page-home .home-sec__lede {
  margin: 12px 0 0;
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--k8-mist);
}

.page-home .home-sec .k8-text {
  margin: 12px 0 0;
}

.page-home .home-sec__head--split {
  display: grid;
  gap: 16px;
  max-width: none;
}

.page-home .home-topics__note {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--k8-gray);
}

/* ---------- 01 版本变更 ---------- */
.page-home .home-ver {
  display: grid;
  gap: 40px;
}

.page-home .home-ver__figure {
  margin: 0;
}

.page-home .home-ver__figure .k8-media {
  border-radius: var(--k8-r-lg);
  overflow: hidden;
  border: 1px solid var(--k8-paper);
}

.page-home .home-ver__figure .k8-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-ver__list {
  min-width: 0;
}

.page-home .home-ver__item {
  padding: 24px 0;
  border-top: 1px solid var(--k8-paper);
}

.page-home .home-ver__item:last-of-type {
  border-bottom: 1px solid var(--k8-paper);
}

.page-home .home-ver__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin-bottom: 10px;
}

.page-home .home-ver__ver {
  margin: 0;
  font-family: var(--k8-font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--k8-ink);
}

.page-home .home-ver__tag {
  padding: 3px 12px;
  border-radius: var(--k8-r-pill);
  background: var(--k8-cyan-soft);
  font-family: var(--k8-font-data);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: #10736A;
}

.page-home .home-ver__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--k8-ink);
}

.page-home .home-ver__toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 6px 0;
  background: none;
  border: 0;
  font-family: var(--k8-font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--k8-gray);
  cursor: pointer;
  transition: color 180ms var(--k8-ease);
}

.page-home .home-ver__toggle:hover,
.page-home .home-ver__toggle:focus-visible {
  color: #0E7C6F;
}

.page-home .home-ver__caret {
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 180ms var(--k8-ease);
}

.page-home .home-ver__toggle[aria-expanded="true"] .home-ver__caret {
  transform: rotate(225deg) translate(-1px, -1px);
}

.page-home .home-ver__panel {
  padding: 4px 0 4px 0;
}

.page-home .home-ver__bullets {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .home-ver__bullets li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--k8-gray);
}

.page-home .home-ver__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--k8-cyan);
}

.page-home .home-ver__more {
  margin: 24px 0 0;
}

/* ---------- 02 检测报告 ---------- */
.page-home .home-report {
  display: grid;
  gap: 40px;
}

.page-home .home-report__h3 {
  margin: 0 0 20px;
  color: var(--k8-white);
}

.page-home .home-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-chips__item {
  padding: 8px 16px;
  border-radius: var(--k8-r-pill);
  border: 1px solid var(--home-dark-line);
  background: var(--home-dark-panel);
  font-family: var(--k8-font-data);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(244, 247, 250, 0.9);
  transition: border-color 180ms var(--k8-ease), color 180ms var(--k8-ease);
}

.page-home .home-chips__item:hover {
  border-color: var(--k8-cyan);
  color: var(--k8-cyan);
}

.page-home .home-report__note {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--k8-mist);
}

.page-home .home-report__required {
  padding: 28px;
  border-radius: var(--k8-r-xl);
  border: 1px solid var(--home-dark-line);
  background: var(--home-dark-panel);
}

.page-home .home-req {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-dark-line);
}

.page-home .home-req__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--home-dark-line);
}

.page-home .home-req__num {
  grid-row: span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--k8-cyan);
  padding-top: 3px;
}

.page-home .home-req__title {
  font-family: var(--k8-font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--k8-white);
}

.page-home .home-req__txt {
  font-size: 14px;
  line-height: 1.75;
  color: var(--k8-mist);
}

.page-home .home-report__cta {
  margin: 24px 0 0;
}

/* ---------- 03 起订分档 ---------- */
.page-home .home-tier {
  position: relative;
}

.page-home .home-tier__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-home .home-tier__switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .home-tier__label {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--k8-r-pill);
  border: 1px solid var(--k8-paper);
  background: var(--k8-white);
  color: var(--k8-ink);
  font-size: 14.5px;
  cursor: pointer;
  transition: background 180ms var(--k8-ease), border-color 180ms var(--k8-ease), color 180ms var(--k8-ease);
}

.page-home .home-tier__label:hover {
  border-color: var(--k8-cyan);
}

.page-home .home-tier__label-num {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--k8-gray);
  transition: color 180ms var(--k8-ease);
}

.page-home .home-tier__radio:focus-visible + .home-tier__switch .home-tier__label,
.page-home .home-tier__radio:focus-visible ~ .home-tier__switch .home-tier__label {
  outline: 2px solid var(--k8-cyan);
  outline-offset: 2px;
}

.page-home #tier-a:checked ~ .home-tier__switch .home-tier__label[for="tier-a"],
.page-home #tier-b:checked ~ .home-tier__switch .home-tier__label[for="tier-b"],
.page-home #tier-c:checked ~ .home-tier__switch .home-tier__label[for="tier-c"] {
  background: var(--k8-indigo);
  border-color: var(--k8-indigo);
  color: var(--k8-white);
}

.page-home #tier-a:checked ~ .home-tier__switch .home-tier__label[for="tier-a"] .home-tier__label-num,
.page-home #tier-b:checked ~ .home-tier__switch .home-tier__label[for="tier-b"] .home-tier__label-num,
.page-home #tier-c:checked ~ .home-tier__switch .home-tier__label[for="tier-c"] .home-tier__label-num {
  color: var(--k8-cyan);
}

.page-home .home-tier__body {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.page-home .home-tier__panel {
  display: none;
  padding: 28px;
  border-radius: var(--k8-r-lg);
  border: 1px solid var(--k8-paper);
  background: var(--k8-white);
  transition: border-color 180ms var(--k8-ease);
}

.page-home .home-tier__panel:hover {
  border-color: var(--k8-cyan);
}

.page-home #tier-a:checked ~ .home-tier__body .home-tier__panel--a,
.page-home #tier-b:checked ~ .home-tier__body .home-tier__panel--b,
.page-home #tier-c:checked ~ .home-tier__body .home-tier__panel--c {
  display: block;
}

.page-home .home-tier__figure {
  margin: 0;
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--k8-indigo);
}

.page-home .home-tier__figure-cap {
  margin: 8px 0 24px;
  font-size: 14px;
  color: var(--k8-gray);
}

.page-home .home-tier__meta {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--k8-paper);
}

.page-home .home-tier__meta-row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--k8-paper);
}

.page-home .home-tier__meta-row dt {
  font-family: var(--k8-font-data);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--k8-gray);
}

.page-home .home-tier__meta-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--k8-ink);
}

.page-home .home-tier__panels .k8-note {
  margin: 16px 0 0;
}

.page-home .home-tier__figurebox {
  margin: 0;
}

.page-home .home-tier__figurebox .k8-media {
  border-radius: var(--k8-r-lg);
  overflow: hidden;
  border: 1px solid var(--k8-paper);
}

.page-home .home-tier__figurebox .k8-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 04 保养与响应 ---------- */
.page-home .home-care {
  display: grid;
  gap: 40px;
}

.page-home .home-care__cycles {
  display: grid;
}

.page-home .home-care__cycle {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--home-dark-line);
}

.page-home .home-care__cycle:first-child {
  border-top: 1px solid var(--home-dark-line);
}

.page-home .home-care__model {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--k8-cyan);
}

.page-home .home-care__months {
  font-family: var(--k8-font-head);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--k8-white);
}

.page-home .home-care__scope {
  grid-column: 2;
  font-size: 13.5px;
  color: var(--k8-mist);
}

.page-home .home-care__h3 {
  margin: 0 0 18px;
  color: var(--k8-white);
}

.page-home .home-care__list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
}

.page-home .home-care__list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: rgba(244, 247, 250, 0.9);
}

.page-home .home-care__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--k8-cyan);
  flex: none;
}

.page-home .home-care__text {
  margin: 0 0 24px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--k8-mist);
}

.page-home .home-care__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.page-home .home-care__media {
  margin-top: 40px;
  border-radius: var(--k8-r-lg);
  overflow: hidden;
  border: 1px solid var(--home-dark-line);
}

.page-home .home-care__media .k8-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 05 接入路径 ---------- */
.page-home .home-path {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 28px;
}

.page-home .home-path__step {
  padding: 0;
}

.page-home .home-path__step::before {
  content: attr(data-step);
  display: block;
  margin-bottom: 12px;
  font-family: var(--k8-font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--k8-indigo);
}

.page-home .home-path__step .k8-path__title {
  margin: 0 0 8px;
  font-family: var(--k8-font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--k8-ink);
}

.page-home .home-path__step .k8-path__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--k8-gray);
}

/* ---------- 06 专题 ---------- */
.page-home .home-topics__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--k8-paper);
}

.page-home .home-topics__item {
  border-bottom: 1px solid var(--k8-paper);
}

.page-home .home-topics__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  text-decoration: none;
  color: inherit;
  transition: color 180ms var(--k8-ease);
}

.page-home .home-topics__issue {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--k8-gray);
}

.page-home .home-topics__title {
  font-size: 17px;
  line-height: 1.6;
  color: var(--k8-ink);
  transition: color 180ms var(--k8-ease);
}

.page-home .home-topics__tag {
  justify-self: start;
}

.page-home .home-topics__link:hover .home-topics__title,
.page-home .home-topics__link:focus-visible .home-topics__title {
  color: #0E7C6F;
}

.page-home .home-topics__link:hover .home-topics__issue {
  color: var(--k8-indigo);
}

/* ---------- 收尾带 ---------- */
.page-home .home-close {
  background: var(--k8-paper);
  padding: 40px 0;
}

.page-home .home-close__inner {
  display: grid;
  gap: 20px;
}

.page-home .home-close__line {
  margin: 0;
  max-width: 78ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3A4A5C;
}

.page-home .home-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .home-sec__head--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: 32px;
  }

  .page-home .home-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 0;
  }

  .page-home .home-hero__fact {
    display: block;
    padding: 0 20px;
    border-bottom: 0;
    border-left: 1px solid var(--home-dark-line);
  }

  .page-home .home-hero__fact:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-home .home-hero__fact-num {
    display: block;
    margin-bottom: 4px;
  }

  .page-home .home-topics__link {
    grid-template-columns: 110px minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px 24px;
  }

  .page-home .home-topics__tag {
    justify-self: end;
  }

  .page-home .home-close__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 880px) {
  .page-home .home-tier__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .home-care {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 72px;
    align-items: start;
  }

  .page-home .home-path {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-home .home-path__step {
    padding: 0 22px;
    border-left: 1px solid var(--k8-paper);
  }

  .page-home .home-path__step:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-home .home-path__step:last-child {
    padding-right: 0;
  }
}

@media (min-width: 960px) {
  .page-home .home-hero {
    padding: 128px 0 80px;
  }

  .page-home .home-hero__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 72px;
    align-items: start;
  }

  .page-home .home-ver {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 72px;
    align-items: start;
  }

  .page-home .home-ver__figure {
    position: sticky;
    top: 108px;
  }

  .page-home .home-report {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 72px;
    align-items: start;
  }

  .page-home .home-care__media {
    margin-top: 72px;
  }
}

@media (max-width: 420px) {
  .page-home .home-care__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-home .home-tier__label {
    width: 100%;
    justify-content: space-between;
  }
}