/* ===== 首页 · page-home ===== */
.page-home {
  --home-cut: 18px;
  --home-shadow: 0 20px 44px -34px rgba(10, 26, 42, .6);
  background: var(--bg);
  color: var(--graphite);
  overflow-x: hidden;
}

.page-home h1,
.page-home h2,
.page-home h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-home a:focus-visible,
.page-home button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-home .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-mono {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .04em;
  color: inherit;
  opacity: .78;
}

.page-home .home-link {
  color: var(--cyan);
  font-size: var(--step-0);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 124, 154, .35);
  padding-bottom: 1px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .home-link:hover,
.page-home .home-link:focus-visible {
  color: var(--gold-deep);
  border-bottom-color: var(--gold);
}

.page-home .home-link--light {
  color: var(--gold-bright);
  border-bottom-color: rgba(227, 193, 90, .38);
}

.page-home .home-link--light:hover,
.page-home .home-link--light:focus-visible {
  color: #fff;
  border-bottom-color: var(--gold-bright);
}

.page-home .home-block {
  padding: clamp(36px, 6vw, 72px) 0;
}

.page-home .home-block--tight {
  padding: clamp(26px, 4vw, 48px) 0;
}

/* 区块标题行 */
.page-home .home-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: 14px;
  margin-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}

.page-home .home-head h2 {
  font-size: var(--step-3);
  line-height: 1.24;
}

.page-home .home-head__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .04em;
  color: var(--graphite);
  opacity: .7;
}

/* ===== 首屏 ===== */
.home-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 44px) 0 clamp(34px, 5vw, 60px);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.home-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: saturate(.45) contrast(1.06);
}

.home-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(201, 162, 39, .2), transparent 58%),
    linear-gradient(180deg, rgba(10, 26, 42, .8), rgba(10, 26, 42, .96));
}

.home-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3vw, 30px);
}

.home-path {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .06em;
  color: var(--on-ink-muted);
}

.home-path__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 0 3px rgba(227, 193, 90, .18);
}

.home-path__sep {
  opacity: .45;
}

.home-path__now {
  color: var(--gold-bright);
}

.home-hero h1 {
  margin-top: 14px;
  font-size: var(--step-5);
  line-height: 1.1;
  color: #fff;
}

.home-hero__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--on-ink-text);
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.home-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--on-ink-line);
}

.home-hero__meta .home-mono {
  color: var(--on-ink-muted);
}

/* 当前导航结构 */
.nav-cur {
  position: relative;
  margin-top: 24px;
  padding: 16px 16px 18px;
  background: linear-gradient(158deg, rgba(227, 193, 90, .12), rgba(251, 252, 253, .04) 58%);
}

.nav-cur::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--on-ink-line);
  clip-path: polygon(0 0, calc(100% - var(--home-cut)) 0, 100% var(--home-cut), 100% 100%, 0 100%);
  pointer-events: none;
}

.nav-cur__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--on-ink-line);
}

.nav-cur__head .home-mono {
  color: var(--gold-bright);
  opacity: .95;
}

.nav-cur__hint {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--on-ink-muted);
}

.nav-cur__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.nav-cur__link {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 2px 10px;
  align-items: baseline;
  padding: 9px 8px 9px 6px;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.nav-cur__link:hover,
.nav-cur__link:focus-visible {
  background: rgba(201, 162, 39, .15);
  border-left-color: var(--gold);
  transform: translateX(3px);
}

.nav-cur__link[aria-current="page"] {
  background: rgba(201, 162, 39, .1);
  border-left-color: var(--gold-bright);
}

.nav-cur__no {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--gold-bright);
  opacity: .9;
}

.nav-cur__label {
  font-size: var(--step-1);
  font-weight: 700;
  letter-spacing: .02em;
}

.nav-cur__desc {
  grid-column: 2;
  font-size: var(--step--1);
  color: var(--on-ink-muted);
  line-height: 1.6;
}

/* 上一版分组 */
.home-hero__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.nav-old {
  padding: 16px;
  background: rgba(10, 26, 42, .5);
  border: 1px solid rgba(184, 107, 22, .38);
  border-top: 3px solid var(--amber);
}

.nav-old__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--on-ink-line);
}

.nav-old__head .home-mono {
  color: var(--on-ink-muted);
}

.nav-old__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.nav-old__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: var(--step-0);
  color: var(--on-ink-text);
  padding: 6px 0;
  border-bottom: 1px dotted rgba(251, 252, 253, .1);
}

.nav-old__no {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--amber);
  min-width: 14px;
}

.nav-old__note {
  margin: 14px 0 0;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--on-ink-muted);
}

.home-hero__shot {
  border: 1px solid var(--on-ink-line);
}

.home-hero__shot .media-frame__caption {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--on-ink-muted);
}

/* ===== 快捷入口 ===== */
.home-quick__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.quick-card {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line-strong);
  color: inherit;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.quick-card:hover,
.quick-card:focus-visible {
  transform: translateY(-3px);
  border-top-color: var(--gold);
  box-shadow: var(--home-shadow);
}

.quick-card__no {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
  color: var(--gold-deep);
}

.quick-card__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}

.quick-card__text {
  font-size: var(--step-0);
  line-height: 1.72;
  color: var(--graphite);
}

.quick-card__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--cyan);
}

.quick-card:hover .quick-card__go,
.quick-card:focus-visible .quick-card__go {
  color: var(--gold-deep);
}

/* ===== 三步入口 ===== */
.home-steps__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.home-steps__intro h2 {
  margin-top: 10px;
  font-size: var(--step-3);
  line-height: 1.26;
}

.home-steps__lede {
  margin: 14px 0 20px;
  font-size: var(--step-1);
  line-height: 1.8;
  color: var(--graphite);
}

.home-steps__intro .media-frame {
  border: 1px solid var(--line);
  background: var(--paper);
}

.home-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.step-card {
  position: relative;
  padding: 18px 18px 18px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  transition: transform var(--dur) var(--ease), border-left-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.step-card:hover,
.step-card:focus-within {
  transform: translateX(3px);
  border-left-color: var(--gold-bright);
  box-shadow: var(--home-shadow);
}

.step-card__no {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--gold-deep);
}

.step-card h3 {
  margin: 8px 0 8px;
  font-size: var(--step-2);
  line-height: 1.35;
}

.step-card p {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--graphite);
}

.step-card__meta {
  margin-top: 10px !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: var(--step--1) !important;
  color: var(--ink-2) !important;
  opacity: .8;
}

.home-steps__more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  padding-top: 6px;
}

/* ===== 兼容状态 ===== */
.compat-layout {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.compat-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
  align-content: start;
}

.compat-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 12px;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
}

.compat-item__name {
  font-size: var(--step-0);
  font-weight: 500;
  color: var(--ink);
}

.compat-item__state {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .04em;
}

.compat-item--ok {
  border-left-color: var(--ok);
}

.compat-item--ok .compat-item__state {
  color: var(--ok);
}

.compat-item--warn {
  border-left-color: var(--amber);
}

.compat-item--warn .compat-item__state {
  color: var(--amber);
}

.compat-faq {
  padding: 18px;
  background: var(--ink-2);
  color: var(--paper);
}

.compat-faq__title {
  font-size: var(--step-2);
  color: #fff;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--on-ink-line);
}

.compat-faq__list {
  list-style: none;
  margin: 12px 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.compat-faq__list li {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid rgba(227, 193, 90, .4);
}

.compat-faq__key {
  font-size: var(--step-0);
  font-weight: 700;
  color: var(--gold-bright);
}

.compat-faq__val {
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--on-ink-text);
}

.home-compat__shot {
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  background: var(--paper);
}

/* ===== 版本时间轴 ===== */
.home-tl-sec {
  background:
    linear-gradient(180deg, rgba(238, 242, 244, 0) 0%, rgba(19, 45, 69, .04) 100%);
}

.tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
}

.tl::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(201, 162, 39, .12));
}

.tl__item {
  position: relative;
  padding: 0 0 22px;
  transition: transform var(--dur) var(--ease);
}

.tl__item:last-child {
  padding-bottom: 0;
}

.tl__item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(184, 107, 22, .14);
}

.tl__item--gold::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .18);
}

.tl__item:hover,
.tl__item:focus-within {
  transform: translateX(4px);
}

.tl__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.tl__ver {
  font-family: var(--font-mono);
  font-size: var(--step-2);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink);
}

.tl__text {
  margin: 8px 0 6px;
  max-width: 62ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--graphite);
}

.tl__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .03em;
  color: var(--cyan);
}

.home-tl__more {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

/* ===== 服务数据 ===== */
.home-trust {
  padding: clamp(22px, 4vw, 40px);
  background:
    radial-gradient(110% 80% at 100% 0%, rgba(201, 162, 39, .16), transparent 62%),
    linear-gradient(150deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--paper);
}

.home-trust__head h2 {
  margin-top: 8px;
  font-size: var(--step-3);
  color: #fff;
}

.home-trust__head .eyebrow {
  color: var(--gold-bright);
}

.home-trust__lede {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: var(--step-0);
  line-height: 1.78;
  color: var(--on-ink-text);
}

.home-trust__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  background: var(--on-ink-line);
  border: 1px solid var(--on-ink-line);
}

.home-trust__item {
  display: grid;
  gap: 4px;
  padding: 16px 14px;
  background: rgba(10, 26, 42, .86);
}

.home-trust__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--gold-bright);
  line-height: 1.1;
}

.home-trust__unit {
  font-size: var(--step--1);
  margin-left: 4px;
  color: rgba(227, 193, 90, .78);
}

.home-trust__label {
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--on-ink-muted);
}

.home-trust__foot {
  margin: 18px 0 0;
}

/* ===== 收束区 ===== */
.home-final {
  background: linear-gradient(140deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--paper);
}

.home-final__inner {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.home-final h2 {
  margin-top: 8px;
  font-size: var(--step-3);
  color: #fff;
}

.home-final .eyebrow {
  color: var(--gold-bright);
}

.home-final__text {
  margin: 12px 0 18px;
  max-width: 52ch;
  font-size: var(--step-0);
  line-height: 1.78;
  color: var(--on-ink-text);
}

.home-final__search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--paper);
  background: rgba(251, 252, 253, .07);
  border: 1px solid var(--on-ink-line);
  border-left: 3px solid var(--gold);
  transition: background var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.home-final__search:hover,
.home-final__search:focus-visible {
  background: rgba(201, 162, 39, .16);
  border-left-color: var(--gold-bright);
}

.home-final__glyph {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 2px solid var(--gold-bright);
  border-radius: 50%;
  position: relative;
}

.home-final__glyph::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  background: var(--gold-bright);
  transform: rotate(45deg);
}

.home-final__search-text {
  font-size: var(--step-0);
  flex: 1 1 auto;
  min-width: 0;
}

.home-final__search-go {
  font-family: var(--font-mono);
  color: var(--gold-bright);
}

.home-final__cta {
  padding: 20px;
  background: rgba(251, 252, 253, .06);
  border: 1px solid var(--on-ink-line);
  border-top: 3px solid var(--gold);
}

.home-final__cta h3 {
  font-size: var(--step-2);
  color: #fff;
}

.home-final__cta p {
  margin: 10px 0 0;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--on-ink-text);
}

.home-final__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.home-final__note {
  font-family: var(--font-mono);
  font-size: var(--step--1) !important;
  line-height: 1.7;
  color: var(--on-ink-muted) !important;
  padding-top: 12px;
  border-top: 1px dashed var(--on-ink-line);
  word-break: break-word;
}

/* ===== 断点 ===== */
@media (min-width: 600px) {
  .home-quick__grid {
    grid-template-columns: 1fr 1fr;
  }

  .compat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .home-trust__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .home-hero__inner {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .compat-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .home-quick__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .home-final__inner {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .home-steps__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .home-trust__grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (min-width: 1180px) {
  .home-hero__inner {
    grid-template-columns: 7fr 4.4fr;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .nav-cur__link,
  .page-home .quick-card,
  .page-home .step-card,
  .page-home .tl__item,
  .page-home .home-final__search {
    transition: none;
  }

  .page-home .nav-cur__link:hover,
  .page-home .quick-card:hover,
  .page-home .step-card:hover,
  .page-home .tl__item:hover {
    transform: none;
  }
}