.page-home {
  --ph-ink-gold: #8A6410;
  --ph-ink-soft: rgba(11, 30, 51, 0.7);
  --ph-ink-faint: rgba(11, 30, 51, 0.5);
  --ph-hair: rgba(140, 148, 156, 0.28);
  background-color: var(--yl-deep);
  color: var(--yl-paper);
  overflow-x: hidden;
}

/* ---------- 首屏：主题声明 + 坐标索引 ---------- */
.page-home .ph-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(46px, 11vw, 118px) 0 clamp(30px, 5vw, 52px);
  background:
    radial-gradient(118% 82% at 84% 2%, rgba(30, 90, 138, 0.58), rgba(11, 30, 51, 0) 62%),
    linear-gradient(180deg, var(--yl-deep) 0%, var(--yl-deep-2) 100%);
}

.page-home .ph-hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(111, 158, 136, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(111, 158, 136, 0.1) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
}

.page-home .ph-hero__inner {
  position: relative;
}

.page-home .ph-hero__eyebrow {
  color: var(--yl-gold-soft);
  letter-spacing: 0.18em;
  font-size: 12.5px;
}

.page-home .ph-hero__title {
  margin: 18px 0 0;
  font-size: clamp(42px, 12.5vw, 116px);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-home .ph-hero__accent {
  position: relative;
  display: inline-block;
  color: var(--yl-gold);
}

.page-home .ph-hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.06em;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--yl-gold), rgba(226, 179, 60, 0));
}

.page-home .ph-hero__lede {
  margin: clamp(20px, 4vw, 32px) 0 0;
  max-width: 40ch;
  font-size: clamp(15px, 3.7vw, 18px);
  line-height: 1.95;
  color: var(--yl-text-soft);
}

.page-home .ph-hero__actions {
  margin-top: clamp(22px, 4vw, 32px);
}

/* 坐标索引 */
.page-home .ph-index {
  margin-top: clamp(36px, 7vw, 68px);
  padding-top: 16px;
  border-top: 1px solid var(--yl-hair);
}

.page-home .ph-index__head {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--yl-rock-soft);
}

.page-home .ph-index__head .yl-mono {
  margin-right: 10px;
  color: var(--yl-gold);
}

.page-home .ph-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-index__item {
  border-bottom: 1px solid var(--yl-hair);
}

.page-home .ph-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 14px;
  padding: 15px 4px;
  color: inherit;
  text-decoration: none;
  transition: background-color 0.3s var(--yl-ease), padding-left 0.3s var(--yl-ease);
}

.page-home .ph-index__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yl-gold);
}

.page-home .ph-index__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-home .ph-index__desc {
  grid-column: 2 / 3;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--yl-text-faint);
}

.page-home .ph-index__arrow {
  grid-row: 1 / 3;
  align-self: center;
  font-size: 16px;
  color: var(--yl-rock-soft);
  transition: transform 0.3s var(--yl-ease), color 0.3s var(--yl-ease);
}

.page-home .ph-index__link:hover {
  background-color: rgba(30, 90, 138, 0.3);
  padding-left: 12px;
}

.page-home .ph-index__link:hover .ph-index__arrow {
  color: var(--yl-gold);
  transform: translateX(5px);
}

@media (min-width: 820px) {
  .page-home .ph-index__link {
    grid-template-columns: auto 168px minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-home .ph-index__desc {
    grid-column: 3 / 4;
  }
  .page-home .ph-index__arrow {
    grid-row: 1 / 2;
  }
}

/* ---------- 天际线整幅图 ---------- */
.page-home .ph-skyline {
  position: relative;
  margin: 0;
  border-top: 1px solid var(--yl-line-gold);
  border-bottom: 1px solid var(--yl-hair);
}

.page-home .ph-skyline img {
  display: block;
  width: 100%;
  height: clamp(190px, 44vw, 500px);
  object-fit: cover;
  opacity: 0.84;
  filter: saturate(0.85) contrast(1.05);
}

.page-home .ph-skyline__caption {
  position: absolute;
  left: clamp(20px, 5vw, 88px);
  bottom: clamp(12px, 2.4vw, 24px);
  padding: 7px 14px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--yl-paper);
  background: rgba(11, 30, 51, 0.74);
  border-left: 3px solid var(--yl-gold);
  border-radius: 3px;
}

/* ---------- 章节公用骨架 ---------- */
.page-home .ph-paper {
  padding: clamp(56px, 12vw, 138px) 0;
  background: var(--yl-paper);
  color: var(--yl-ink);
}

.page-home .ph-band-section {
  padding: clamp(52px, 10vw, 118px) 0 clamp(42px, 8vw, 92px);
  background:
    radial-gradient(92% 58% at 10% 0%, rgba(30, 90, 138, 0.5), rgba(11, 30, 51, 0) 58%),
    var(--yl-deep);
  color: var(--yl-paper);
}

.page-home .ph-notice {
  padding: clamp(48px, 9vw, 110px) 0;
  background: var(--yl-deep-2);
  color: var(--yl-paper);
}

.page-home .ph-scale {
  padding: clamp(52px, 10vw, 124px) 0;
  background: linear-gradient(180deg, var(--yl-deep-2) 0%, var(--yl-deep) 100%);
  color: var(--yl-paper);
}

.page-home .ph-chapter {
  display: grid;
  gap: clamp(14px, 3vw, 26px);
}

.page-home .ph-chapter__num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--yl-gold);
}

.page-home .ph-paper .ph-chapter__num {
  color: var(--ph-ink-gold);
}

.page-home .ph-chapter__title {
  margin: 0;
  font-size: clamp(26px, 7vw, 46px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-home .ph-chapter__note {
  margin: clamp(12px, 2.4vw, 20px) 0 0;
  max-width: 38ch;
  font-size: clamp(14.5px, 3.5vw, 16.5px);
  line-height: 1.95;
  color: var(--yl-text-soft);
}

.page-home .ph-paper .ph-chapter__note {
  color: var(--ph-ink-soft);
}

@media (min-width: 900px) {
  .page-home .ph-chapter {
    grid-template-columns: 92px minmax(0, 1fr);
    column-gap: clamp(24px, 4vw, 56px);
  }
  .page-home .ph-chapter__aside {
    padding-top: 8px;
  }
}

/* ---------- 01 两步到屏 ---------- */
.page-home .ph-step-split {
  margin-top: clamp(28px, 5vw, 48px);
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

@media (min-width: 860px) {
  .page-home .ph-step-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-home .ph-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--yl-radius);
  background: var(--yl-deep-2);
}

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

.page-home .ph-figure--frame img {
  aspect-ratio: 4 / 3;
}

.page-home .ph-figure--wide img {
  aspect-ratio: 16 / 9;
}

.page-home .ph-figure--map img {
  aspect-ratio: 3 / 2;
}

.page-home .ph-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-home .ph-step {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid var(--yl-hair);
}

.page-home .ph-paper .ph-step {
  border-left-color: rgba(11, 30, 51, 0.16);
}

.page-home .ph-step::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yl-gold);
  box-shadow: 0 0 0 3px rgba(226, 179, 60, 0.18);
}

.page-home .ph-paper .ph-step::before {
  background: var(--ph-ink-gold);
  box-shadow: 0 0 0 3px rgba(138, 100, 16, 0.14);
}

.page-home .ph-step__num {
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--yl-gold);
}

.page-home .ph-paper .ph-step__num {
  color: var(--ph-ink-gold);
}

.page-home .ph-step__title {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-home .ph-step__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ph-ink-soft);
}

.page-home .ph-reserve {
  margin-top: clamp(26px, 4vw, 42px);
  padding: 20px 22px;
  border: 1px dashed rgba(30, 90, 138, 0.34);
  border-radius: var(--yl-radius);
  background: rgba(30, 90, 138, 0.06);
}

.page-home .ph-reserve__title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--yl-tide);
}

.page-home .ph-reserve__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ph-ink-soft);
}

/* ---------- 02 横滑卡片带 ---------- */
.page-home .ph-band {
  margin-top: clamp(28px, 5vw, 48px);
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 84%;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 0 20px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

@media (min-width: 720px) {
  .page-home .ph-band {
    grid-auto-columns: 47%;
  }
}

@media (min-width: 1080px) {
  .page-home .ph-band {
    grid-auto-columns: 31.5%;
  }
}

.page-home .ph-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 24px 22px;
  scroll-snap-align: start;
  border: 1px solid var(--yl-hair);
  border-top: 3px solid var(--yl-gold);
  border-radius: var(--yl-radius);
  background: linear-gradient(180deg, rgba(18, 58, 94, 0.92), rgba(11, 30, 51, 0.9));
}

.page-home .ph-card:nth-child(2) {
  border-top-color: var(--yl-celadon);
}

.page-home .ph-card:nth-child(3) {
  border-top-color: var(--yl-tide);
}

.page-home .ph-card:nth-child(4) {
  border-top-color: var(--yl-clay);
}

.page-home .ph-card .yl-tag {
  align-self: flex-start;
}

.page-home .ph-card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.page-home .ph-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--yl-text-soft);
}

.page-home .ph-card__meta {
  margin-top: auto;
  padding-top: 6px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--yl-rock-soft);
}

.page-home .ph-band-figure {
  margin-top: clamp(24px, 4vw, 44px);
}

.page-home .ph-note {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--yl-line-gold);
  font-size: 14px;
  line-height: 1.9;
  color: var(--yl-text-faint);
}

/* ---------- 03 公告反馈 ---------- */
.page-home .ph-notice-card {
  margin-top: clamp(26px, 5vw, 46px);
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid rgba(196, 115, 90, 0.42);
  border-radius: var(--yl-radius-lg);
  background: linear-gradient(152deg, rgba(196, 115, 90, 0.18), rgba(11, 30, 51, 0.42) 64%);
}

.page-home .ph-notice-card .yl-tag {
  align-self: flex-start;
}

.page-home .ph-notice-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-notice-list li {
  display: grid;
  gap: 4px 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(246, 241, 231, 0.12);
}

@media (min-width: 640px) {
  .page-home .ph-notice-list li {
    grid-template-columns: 104px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-home .ph-notice__k {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--yl-gold-soft);
}

.page-home .ph-notice__v {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--yl-text-soft);
}

.page-home .ph-notice__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--yl-text-faint);
}

.page-home .ph-notice__cta {
  display: inline-block;
  margin-top: 22px;
}

/* ---------- 04 服务坐标 ---------- */
.page-home .ph-metrics {
  margin: clamp(28px, 5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--yl-hair);
}

.page-home .ph-metric {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 20px 0 20px 18px;
  border-bottom: 1px solid var(--yl-hair);
}

.page-home .ph-metric::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 2px;
  height: 22px;
  background: var(--yl-gold);
}

.page-home .ph-metric dt {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yl-rock-soft);
}

.page-home .ph-metric dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .ph-metric__num {
  font-size: clamp(30px, 8vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--yl-gold);
}

.page-home .ph-metric__unit {
  font-size: 13.5px;
  color: var(--yl-text-soft);
}

@media (min-width: 700px) {
  .page-home .ph-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 1040px) {
  .page-home .ph-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-home .ph-figure--map {
  margin-top: clamp(28px, 5vw, 48px);
  border: 1px solid var(--yl-hair);
}

.page-home .ph-map__cap {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--yl-text-faint);
  border-top: 1px solid var(--yl-hair);
  background: rgba(11, 30, 51, 0.6);
}

.page-home .ph-facts {
  margin-top: clamp(24px, 4vw, 38px);
  display: grid;
  gap: 0;
}

@media (min-width: 760px) {
  .page-home .ph-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }
}

.page-home .ph-fact {
  margin: 0;
  padding: 15px 0;
  border-top: 1px solid var(--yl-hair);
  font-size: 14px;
  line-height: 1.85;
  color: var(--yl-text-soft);
}

.page-home .ph-fact .yl-mono {
  margin-right: 8px;
  font-size: 13px;
  color: var(--yl-celadon);
}

/* ---------- 收束区 ---------- */
.page-home .ph-close {
  padding: clamp(58px, 12vw, 138px) 0;
  background:
    radial-gradient(78% 100% at 46% 118%, rgba(226, 179, 60, 0.2), rgba(11, 30, 51, 0) 64%),
    var(--yl-deep-2);
}

.page-home .ph-close__eyebrow {
  color: var(--yl-gold-soft);
  letter-spacing: 0.2em;
}

.page-home .ph-close__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(24px, 6.4vw, 42px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 0.02em;
}

.page-home .ph-close__text {
  margin: 16px 0 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--yl-text-soft);
}

.page-home .ph-close__actions {
  margin-top: 28px;
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
<<<END>>>

.page-home {
  --yl-hair: var(--yl-ink);
}