/* ============ 首页 page-home ============ */
.page-home {
  --grid-line: rgba(110, 122, 133, .13);
  --home-rule: rgba(110, 122, 133, .28);
  background: var(--c-ink);
  color: var(--text-on-dark);
}

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

/* ---- 顶部状态说明 ---- */
.home-status {
  background: var(--c-ink-2);
  border-bottom: 1px solid var(--line-on-dark);
}

.home-status__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  padding-block: .7rem;
}

.home-status__text {
  margin: 0;
  flex: 1 1 16rem;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--text-on-dark-soft);
}

.home-status__meta {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--c-brass);
}

/* ---- 首屏拼贴 ---- */
.home-hero {
  position: relative;
  padding-block: clamp(1.75rem, 5vw, 3.5rem);
  background-color: var(--c-ink);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
}

.home-hero__grid {
  display: grid;
  gap: 1px;
  background: var(--home-rule);
}

.hero-rail,
.hero-main,
.hero-side {
  min-width: 0;
  padding: clamp(1.15rem, 3.4vw, 1.9rem);
}

.hero-rail {
  background: var(--c-ink-2);
}

.hero-main {
  background: var(--c-ink);
}

.hero-side {
  background: var(--c-ink-2);
}

@media (min-width: 900px) {
  .home-hero__grid {
    grid-template-columns: 3fr 5fr 4fr;
  }
}

/* 左列：更新缩影 */
.hero-rail {
  display: flex;
  flex-direction: column;
}

.hero-rail__title {
  margin: 0 0 .95rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.rail-list {
  position: relative;
  margin: 0 0 1.2rem;
  padding: 0 0 0 1rem;
  list-style: none;
}

.rail-list::before {
  content: "";
  position: absolute;
  left: 0;
  top: .45rem;
  bottom: 1rem;
  width: 1px;
  background: var(--line-on-dark-strong);
}

.rail-list__item {
  position: relative;
  margin-bottom: 1rem;
}

.rail-list__item:last-child {
  margin-bottom: 0;
}

.rail-list__item::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: .42rem;
  width: 6px;
  height: 6px;
  background: var(--c-brass);
  transform: translateX(-50%) rotate(45deg);
}

.rail-list__time {
  display: block;
  margin-bottom: .16rem;
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--c-brass-lit);
}

.rail-list__label {
  display: block;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--text-on-dark-soft);
}

.hero-rail__link {
  display: inline-block;
  margin-top: auto;
  padding-bottom: 1px;
  font-size: .8rem;
  color: var(--c-brass-lit);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.hero-rail__link:hover,
.hero-rail__link:focus-visible {
  color: var(--c-paper-warm);
}

/* 中列：服务清单 */
.hero-eyebrow {
  font-size: .7rem;
  letter-spacing: .18em;
}

.hero-title {
  margin: .6rem 0 0;
  font-size: clamp(1.6rem, 1rem + 2.4vw, 2.4rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--c-paper);
}

.hero-lede {
  margin: 1rem 0 0;
  max-width: 30em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-on-dark-soft);
}

.hero-main__sub {
  margin: 1.9rem 0 .4rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.service-list {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-on-dark);
}

.service-list li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: .35rem;
  padding: .72rem 0;
  border-bottom: 1px solid var(--line-on-dark);
  font-size: .92rem;
  line-height: 1.72;
}

.service-list__num {
  padding-top: .18em;
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--c-brass);
}

.service-list__text {
  color: var(--text-on-dark);
}

.hero-main__cta {
  margin-top: .2rem;
}

/* 右列：权益与通道 */
.hero-side {
  display: flex;
  flex-direction: column;
}

.hero-side__title {
  margin: 1.2rem 0 .5rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.hero-side__title:first-child {
  margin-top: 0;
}

.tier-mini {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tier-mini__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .75rem;
  padding: .5rem 0;
  border-bottom: 1px dashed var(--line-on-dark);
}

.tier-mini__name {
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--c-brass-lit);
}

.tier-mini__val {
  font-size: .86rem;
  color: var(--text-on-dark);
}

.hero-side__link {
  display: inline-block;
  align-self: flex-start;
  margin-top: .6rem;
  padding-bottom: 1px;
  font-size: .8rem;
  color: var(--c-brass-lit);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.hero-side__link:hover,
.hero-side__link:focus-visible {
  color: var(--c-paper-warm);
}

.entry-pair {
  display: grid;
  gap: .55rem;
}

.entry-card {
  display: grid;
  gap: .18rem;
  padding: .85rem 1rem .95rem;
  background: var(--c-ink);
  border: 1px solid var(--line-on-dark);
  border-left: 2px solid var(--c-brass);
  color: var(--text-on-dark);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.entry-card:hover,
.entry-card:focus-visible {
  background: var(--c-ink-3);
  border-left-color: var(--c-brass-lit);
}

.entry-card__tag {
  font-size: .66rem;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.entry-card__name {
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.5;
}

.entry-card__note {
  font-size: .78rem;
  line-height: 1.65;
  color: var(--text-on-dark-soft);
}

.hero-emblem {
  position: relative;
  margin: 1.4rem 0 0;
  overflow: hidden;
  background: var(--c-ink-3);
}

.hero-emblem::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-on-dark);
  pointer-events: none;
}

.hero-emblem img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 899px) {
  .hero-emblem {
    max-width: 320px;
  }
}

/* ---- 覆盖与节奏 ---- */
.home-reach {
  padding-block: clamp(2.5rem, 7vw, 5rem);
  background: var(--c-ink);
}

.reach-band {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-on-dark);
}

.reach-band > img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (min-width: 720px) {
  .reach-band > img {
    aspect-ratio: 8 / 3;
  }
}

.reach-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14, 27, 42, .96) 0%, rgba(14, 27, 42, .74) 46%, rgba(14, 27, 42, .22) 100%);
  pointer-events: none;
}

.reach-band__body {
  position: relative;
  z-index: 2;
  padding: clamp(1.2rem, 3.4vw, 2.2rem);
  background: var(--c-ink-2);
}

@media (min-width: 900px) {
  .reach-band__body {
    position: absolute;
    inset: auto 0 0 0;
    background: none;
  }
}

.reach-band__title {
  margin: .6rem 0 0;
  max-width: 26em;
  font-size: clamp(1.12rem, 1rem + 1.1vw, 1.6rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-paper);
}

.reach-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  background: var(--home-rule);
}

@media (min-width: 720px) {
  .reach-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.reach-stat {
  padding: .9rem 1rem 1.1rem;
  background: rgba(14, 27, 42, .82);
  border-top: 2px solid var(--c-brass);
}

.reach-stat__num {
  display: block;
  font-size: 1.7rem;
  line-height: 1.15;
  letter-spacing: .02em;
  color: var(--c-paper-warm);
}

.reach-stat__num small {
  font-size: .62em;
  letter-spacing: .04em;
}

.reach-stat__label {
  display: block;
  margin-top: .35rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--text-on-dark-soft);
}

.reach-link {
  display: inline-block;
  margin-top: 1.3rem;
  padding-bottom: 1px;
  font-size: .84rem;
  color: var(--c-brass-lit);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.reach-link:hover,
.reach-link:focus-visible {
  color: var(--c-paper-warm);
}

/* ---- 会员权益分级 ---- */
.home-tiers {
  padding-block: clamp(2.5rem, 7vw, 5rem);
  background: var(--c-paper-warm);
  color: var(--text-on-light);
}

.home-tiers .eyebrow {
  color: var(--c-clay);
}

.tiers-title {
  margin: .6rem 0 0;
  max-width: 26em;
  font-size: clamp(1.25rem, 1rem + 1.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--text-on-light);
}

.tier-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.7rem;
}

.tier-tab {
  appearance: none;
  padding: .55rem 1.35rem;
  font-family: var(--font-mono);
  font-size: .85rem;
  letter-spacing: .1em;
  color: var(--text-on-light);
  background: transparent;
  border: 1px solid var(--c-ink);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.tier-tab:hover,
.tier-tab:focus-visible {
  background: rgba(14, 27, 42, .08);
}

.tier-tab[aria-selected="true"] {
  background: var(--c-ink);
  color: var(--c-brass-lit);
}

.tier-tab[aria-selected="true"]:hover,
.tier-tab[aria-selected="true"]:focus-visible {
  background: var(--c-ink);
}

.tier-panel {
  margin-top: 1.5rem;
}

.page-home .tier-panel[hidden] {
  display: none;
}

.tier-spec {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--home-rule);
  border: 1px solid var(--home-rule);
}

.tier-spec__row {
  display: grid;
  gap: .25rem;
  padding: .95rem 1.1rem;
  background: var(--c-paper-warm);
}

@media (min-width: 640px) {
  .tier-spec__row {
    grid-template-columns: 9rem minmax(0, 1fr);
    gap: 1.4rem;
    align-items: baseline;
  }
}

.tier-spec dt {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--c-clay);
}

.tier-spec dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--text-on-light);
}

.tier-tabs__foot {
  margin: 1.5rem 0 0;
  font-size: .88rem;
  line-height: 1.85;
  color: var(--text-on-light-soft);
}

.tier-tabs__foot a {
  color: var(--c-clay);
  text-decoration: underline;
  text-underline-offset: .2em;
}

/* ---- 注册双通道 ---- */
.home-register {
  padding-block: clamp(2.5rem, 7vw, 5rem);
  background: var(--c-ink-2);
  color: var(--text-on-dark);
}

.reg-title {
  margin: .6rem 0 0;
  max-width: 24em;
  font-size: clamp(1.25rem, 1rem + 1.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-paper);
}

.home-register__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.4rem);
  margin-top: 1.9rem;
}

@media (min-width: 900px) {
  .home-register__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr) minmax(0, .7fr);
  }
}

.reg-col__title {
  margin: 0 0 1rem;
  padding-bottom: .7rem;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--c-paper);
  border-bottom: 1px solid var(--line-on-dark-strong);
}

.reg-steps {
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
}

.reg-steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .5rem;
  padding: .68rem 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--text-on-dark-soft);
  border-bottom: 1px dashed var(--line-on-dark);
}

.reg-steps li .mono {
  padding-top: .2em;
  font-size: .72rem;
  color: var(--c-brass);
}

.reg-figure {
  margin: 0;
}

.reg-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line-on-dark);
}

@media (max-width: 899px) {
  .reg-figure {
    max-width: 300px;
  }
}

/* ---- 案例卡片带 ---- */
.home-cases {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: var(--c-ink);
}

.home-cases__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.9rem;
}

.cases-title {
  margin: .6rem 0 0;
  max-width: 24em;
  font-size: clamp(1.25rem, 1rem + 1.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-paper);
}

.home-cases__more {
  flex: none;
  padding-bottom: 1px;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  color: var(--c-brass-lit);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.home-cases__more:hover,
.home-cases__more:focus-visible {
  color: var(--c-paper-warm);
}

.case-track {
  position: relative;
  --track-pad: max(1.125rem, calc((100vw - var(--wrap)) / 2));
}

.case-track::before,
.case-track::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 2;
  width: clamp(1.75rem, 6vw, 5rem);
  pointer-events: none;
}

.case-track::before {
  left: 0;
  background: linear-gradient(to right, var(--c-ink), rgba(14, 27, 42, 0));
}

.case-track::after {
  right: 0;
  background: linear-gradient(to left, var(--c-ink), rgba(14, 27, 42, 0));
}

.case-track__list {
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0 var(--track-pad) 1.1rem;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--c-feather) transparent;
  -webkit-overflow-scrolling: touch;
}

.case-track__list::-webkit-scrollbar {
  height: 6px;
}

.case-track__list::-webkit-scrollbar-thumb {
  background: var(--c-feather);
}

.case-card {
  flex: 0 0 min(76vw, 288px);
  display: flex;
  flex-direction: column;
  gap: .45rem;
  scroll-snap-align: start;
  padding: 1.1rem 1.1rem 1.25rem;
  background: var(--c-ink-2);
  border: 1px solid var(--line-on-dark);
  border-top: 2px solid var(--c-brass);
  transition: background var(--t-fast) var(--ease), border-top-color var(--t-fast) var(--ease);
}

.case-card:hover {
  background: var(--c-ink-3);
  border-top-color: var(--c-brass-lit);
}

.case-card__sector {
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.case-card__code {
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--text-on-dark-soft);
}

.case-card__title {
  margin: 0;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--c-paper);
}

.case-card__time {
  margin-top: auto;
  padding-top: .8rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--text-on-dark-soft);
}

/* ---- 更新记录 ---- */
.home-log {
  padding-block: clamp(2.5rem, 7vw, 5rem);
  background: var(--c-ink-2);
  color: var(--text-on-dark);
}

.home-log__grid {
  display: grid;
  gap: clamp(1.7rem, 4vw, 2.8rem);
}

@media (min-width: 900px) {
  .home-log__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

.log-figure {
  margin: 0;
}

.log-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-on-dark);
}

.log-title {
  margin: .6rem 0 0;
  font-size: clamp(1.2rem, 1rem + 1.4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-paper);
}

.log-list {
  margin: .2rem 0 0;
  padding: 0;
  list-style: none;
}

.log-item {
  position: relative;
  padding: 1.4rem 0 1.4rem 2rem;
}

.log-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.75rem;
  width: 11px;
  height: 11px;
  background: var(--c-ink-2);
  border: 1px solid var(--c-brass);
  transform: rotate(45deg);
}

.log-item::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 3.2rem;
  bottom: 0;
  width: 1px;
  background: var(--line-on-dark-strong);
}

.log-item:first-child {
  padding-top: .4rem;
}

.log-item:first-child::before {
  top: .75rem;
}

.log-item:first-child::after {
  top: 2.2rem;
}

.log-item:last-child::after {
  display: none;
}

.log-item__mark {
  display: block;
  margin-bottom: .25rem;
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--c-brass);
}

.log-item__body h3 {
  margin: 0 0 .32rem;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-paper);
}

.log-item__body p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.78;
  color: var(--text-on-dark-soft);
}

/* ---- 联系与支持 ---- */
.home-contact {
  padding-block: clamp(2.5rem, 7vw, 5rem);
  background: var(--c-ink);
  border-top: 1px solid var(--line-on-dark);
}

.contact-title {
  margin: .6rem 0 0;
  max-width: 24em;
  font-size: clamp(1.25rem, 1rem + 1.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-paper);
}

.home-contact__grid {
  display: grid;
  gap: 1px;
  margin-top: 1.9rem;
  background: var(--home-rule);
}

@media (min-width: 780px) {
  .home-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.contact-block {
  padding: 1.35rem 1.2rem 1.5rem;
  background: var(--c-ink);
}

.contact-block h3 {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--c-brass);
}

.contact-block__value {
  margin: 0 0 .9rem;
  font-size: .98rem;
  line-height: 1.75;
  color: var(--c-paper);
  word-break: break-word;
}

.contact-block__note {
  margin: .85rem 0 0;
  font-size: .82rem;
  line-height: 1.78;
  color: var(--text-on-dark-soft);
}

.contact-block__note a {
  color: var(--c-brass-lit);
  text-decoration: underline;
  text-underline-offset: .2em;
}

/* ---- 桌面端细节 ---- */
@media (min-width: 1200px) {
  .hero-main {
    padding-block: 2.4rem;
  }

  .hero-title {
    max-width: 18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}