/* ================= 品牌首页 ================= */

.page-home {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-home img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 48px 0 64px;
  border-bottom: 1px solid var(--rule);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 72%;
  height: 165%;
  background: linear-gradient(148deg, rgba(201, 162, 39, 0.2) 0%, rgba(201, 162, 39, 0) 58%);
  transform: skewX(-8deg);
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 72%;
  background: var(--graphite);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--sp-6);
}

.page-home .home-hero__copy {
  max-width: 40em;
}

.page-home .crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--sp-4);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ash);
}

.page-home .crumbs .mono {
  font-size: var(--fs-12);
}

.page-home .home-hero .crumbs__sep {
  color: var(--gold);
}

.page-home .home-hero__title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(40px, 8.4vw, 76px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-home .home-hero__title em {
  display: inline-block;
  font-style: normal;
  color: var(--gold);
  border-bottom: 3px solid rgba(201, 162, 39, 0.45);
  padding-bottom: 2px;
}

.page-home .home-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--paper);
}

.page-home .home-hero__panel {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.page-home .home-hero__figure {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(201, 162, 39, 0.3);
  background: rgba(11, 11, 11, 0.4);
}

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

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

/* ---------- 主体骨架 + 左侧索引轨道 ---------- */

.page-home .home-body {
  display: block;
}

.page-home .home-rail {
  display: none;
}

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

.page-home .home-rail__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--rule);
}

.page-home .home-rail__link {
  display: block;
  margin-left: -1px;
  padding: 2px 0 2px 12px;
  border-left: 1px solid transparent;
  text-decoration: none;
  color: var(--ash);
  transition: color 220ms ease, border-color 220ms ease;
}

.page-home .home-rail__num {
  display: block;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
}

.page-home .home-rail__label {
  display: block;
  margin-top: 2px;
  font-family: var(--font-body);
  font-size: var(--fs-12);
}

.page-home .home-rail__link:hover {
  color: var(--gold-lift);
}

.page-home .home-rail__link[aria-current="true"] {
  color: var(--gold);
  border-left-color: var(--gold);
}

/* ---------- 章节通用 ---------- */

.page-home .home-section {
  padding: var(--sp-8) 0;
  border-top: 1px solid var(--rule);
}

.page-home .home-section__head {
  max-width: 46em;
  margin-bottom: var(--sp-6);
}

.page-home .section-num {
  display: block;
  margin-bottom: var(--sp-2);
  font-family: var(--font-mono);
  font-size: clamp(32px, 5.4vw, 56px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-home .section-title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--white);
}

.page-home .section-lead {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--ash);
}

/* ---------- 01 目录索引 ---------- */

.page-home .home-index__figure {
  margin: 0 0 var(--sp-6);
}

.page-home .figure__frame {
  overflow: hidden;
  border: 1px solid var(--rule);
}

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

.page-home .home-index__split {
  display: grid;
  gap: var(--sp-4);
  align-items: start;
}

.page-home .home-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.page-home .home-index__cell {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-14);
  color: var(--paper);
  transition: background-color 200ms ease, border-color 200ms ease;
}

.page-home .home-index__cell:hover {
  background: rgba(201, 162, 39, 0.08);
  border-right-color: var(--gold);
}

.page-home .home-index__key {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .home-index__board {
  padding: var(--sp-3);
  border: 1px solid var(--rule);
  background: rgba(46, 46, 46, 0.45);
}

.page-home .home-index__board .board__label {
  display: block;
  margin-bottom: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .home-index__board .board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-2);
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  font-size: var(--fs-14);
}

.page-home .home-index__board .board__key {
  color: var(--ash);
}

.page-home .home-index__board .board__val {
  color: var(--white);
}

.page-home .home-index__hint {
  margin: var(--sp-6) 0 var(--sp-4);
  max-width: 38em;
  padding-left: var(--sp-3);
  border-left: 2px solid var(--gold);
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--paper);
}

.page-home .home-index__more {
  display: inline-block;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--gold-lift);
  text-decoration: none;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-home .home-index__more:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 02 三条最短路径 ---------- */

.page-home .home-paths {
  display: grid;
  gap: var(--sp-3);
}

.page-home .home-path {
  position: relative;
  padding: var(--sp-4) var(--sp-3) var(--sp-3);
  border: 1px solid var(--rule);
  background: rgba(46, 46, 46, 0.38);
  transition: transform 220ms ease, border-color 220ms ease;
}

.page-home .home-path::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 1px;
  background: var(--gold);
  transition: width 260ms ease;
}

.page-home .home-path:hover {
  transform: translateY(-2px);
  border-color: rgba(201, 162, 39, 0.55);
}

.page-home .home-path:hover::before {
  width: 100%;
}

.page-home .home-path .card__kicker {
  display: block;
  margin-bottom: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .home-path .card__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--white);
}

.page-home .home-path .card__text {
  margin: 0 0 var(--sp-3);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--ash);
}

.page-home .home-path .card__link {
  display: inline-block;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 3px;
  font-size: var(--fs-14);
  color: var(--gold-lift);
  text-decoration: none;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-home .home-path .card__link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-home .home-paths__figure {
  margin: var(--sp-6) 0 0;
}

/* ---------- 03 最近更新 ---------- */

.page-home .home-log {
  margin: 0 0 var(--sp-6);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.page-home .home-log__item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: var(--sp-3);
  align-items: baseline;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--rule);
}

.page-home .home-log__time {
  position: relative;
  padding-left: 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .home-log__time::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--gold);
}

.page-home .home-log__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--paper);
}

.page-home .home-log__figure {
  margin: 0 0 var(--sp-6);
}

/* ---------- 04 人工协助 ---------- */

.page-home .home-assist {
  display: grid;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

.page-home .home-assist__channel {
  position: relative;
  padding: var(--sp-4);
  border: 1px solid var(--rule);
  border-left: 2px solid var(--red);
  background: var(--graphite);
}

.page-home .home-assist__label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ash);
}

.page-home .home-assist__value {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.4vw, 20px);
  line-height: 1.5;
  color: var(--white);
  word-break: break-all;
}

.page-home .home-assist__note {
  margin: var(--sp-3) 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ash);
}

.page-home .copy-btn {
  padding: 9px 16px;
  border: 1px solid var(--rule);
  background: transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold-lift);
  cursor: pointer;
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-home .copy-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.page-home .copy-btn[data-copied] {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--ink);
}

.page-home .copy-btn:focus-visible,
.page-home .home-rail__link:focus-visible,
.page-home .card__link:focus-visible,
.page-home .home-index__more:focus-visible {
  outline: 2px solid var(--gold-lift);
  outline-offset: 2px;
}

/* ---------- 显现动效 ---------- */

.page-home [data-reveal] {
  transition: opacity 280ms ease-out, transform 280ms ease-out;
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-home .home-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .home-log__item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: var(--sp-4);
  }
}

@media (min-width: 760px) {
  .page-home .home-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-4);
  }
  .page-home .home-assist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-6);
  }
  .page-home .home-index__split {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: var(--sp-6);
  }
}

@media (min-width: 900px) {
  .page-home .home-hero {
    padding: 88px 0 96px;
  }
  .page-home .home-hero::after {
    width: 46%;
    opacity: 0.88;
  }
  .page-home .home-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: var(--sp-8);
  }
  .page-home .home-index__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .home-section {
    padding: var(--sp-12) 0;
  }
  .page-home .home-section__head {
    margin-bottom: var(--sp-8);
  }
}

@media (min-width: 1100px) {
  .page-home .home-body {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: var(--sp-6);
    align-items: start;
  }
  .page-home .home-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
    padding-top: var(--sp-12);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .page-home .home-path:hover {
    transform: none;
  }
}
<<<END>>>