.page-home {
  --ph-section-gap: clamp(48px, 7.5vw, 100px);
  --ph-rail-gap: clamp(28px, 4vw, 48px);
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  background-color: var(--ink);
  color: var(--cream);
  font-family: var(--font-sans);
}

.page-home::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.3;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.2) 45%, rgba(0,0,0,.75));
  mask-image: linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.2) 45%, rgba(0,0,0,.75));
}

.page-home > * {
  position: relative;
  z-index: 1;
}

.page-home a {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  padding: clamp(22px, 4vw, 46px) 0 clamp(46px, 8vw, 92px);
}

.page-home .hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.page-home .hero__domain {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-home .hero__title {
  position: relative;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  padding-left: 18px;
  font-size: clamp(34px, 7.4vw, 66px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-home .hero__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.14em;
  width: 8px;
  height: 0.94em;
  background: var(--cyan);
  transform: skewX(-9deg);
  border-radius: 1px;
}

.page-home .hero__lede {
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: 44ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--cream);
  opacity: 0.9;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-home .hero__who {
  margin: 0;
  padding-top: 16px;
  max-width: 46ch;
  border-top: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .hero__visual {
  position: relative;
  display: grid;
  gap: 14px;
}

.page-home .hero__pitch {
  position: absolute;
  z-index: 3;
  top: -5%;
  right: -3%;
  width: 44%;
  max-width: 340px;
  color: var(--cyan);
  opacity: 0.24;
  pointer-events: none;
}

.page-home .hero__shot {
  position: relative;
  margin: 0;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-home .hero__shot::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 26px;
  height: 26px;
  border-top: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  pointer-events: none;
}

.page-home .hero__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .hero__hud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding: 12px 16px;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: rgba(7, 12, 31, 0.78);
}

.page-home .hero__hud-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ph-breathe-ring 2.4s var(--ease) infinite;
}

.page-home .hero__hud-text {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.page-home .hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0 0 0 auto;
}

.page-home .hero__stats > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .hero__stats dt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-home .hero__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

@keyframes ph-breathe-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(44, 229, 216, 0.55); }
  50% { box-shadow: 0 0 0 8px rgba(44, 229, 216, 0); }
}

@keyframes ph-breathe-fade {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.28; }
}

/* ---------- 章节题头 ---------- */

.page-home .section-head {
  display: grid;
  gap: 10px;
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-home .section-head__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-home .section-head h2,
.page-home .modes__copy h2,
.page-home .pin__copy h2 {
  margin: 0;
  font-size: clamp(26px, 4.4vw, 42px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-home .section-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 订阅流 ---------- */

.page-home .feed {
  padding: var(--ph-section-gap) 0;
}

.page-home .feed__grid {
  display: grid;
  gap: var(--ph-rail-gap);
}

.page-home .feed__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .feed__shot {
  position: relative;
  margin: 0;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-home .feed__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .feed__aside-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .feed__link {
  justify-self: start;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 229, 216, 0.42);
  padding-bottom: 2px;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-home .feed__link:hover {
  border-bottom-color: var(--cyan);
  color: var(--cream);
}

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid);
}

.page-home .filter-btn {
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 7px 15px;
  color: var(--stone);
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-home .filter-btn:hover {
  color: var(--cream);
  border-color: var(--turf);
  transform: translateY(-1px);
}

.page-home .filter-btn[aria-pressed="true"] {
  color: var(--ink-deep);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-home .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

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

.page-home .feed-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  column-gap: 14px;
  padding: 16px 12px 16px 14px;
  border-bottom: 1px solid var(--grid);
  border-left: 2px solid transparent;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease),
    background 0.18s var(--ease);
}

.page-home .feed-item:hover,
.page-home .feed-item:focus-within {
  border-left-color: var(--cyan);
  transform: translateX(4px);
  background: linear-gradient(90deg, rgba(44, 229, 216, 0.08), transparent 72%);
}

.page-home .feed-item__time {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-home .feed-item__body {
  display: grid;
  justify-items: start;
  gap: 6px;
  min-width: 0;
}

.page-home .feed-item__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--cream);
}

.page-home .feed-item__brief {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-home .feed-empty {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--stone);
}

.page-home .feed-empty[hidden] {
  display: none;
}

.page-home .feed__more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- V4 路径 ---------- */

.page-home .path {
  padding: var(--ph-section-gap) 0;
  background: var(--ink-deep);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-home .path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-home .path__step {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--ink);
}

.page-home .path__num {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--clay);
}

.page-home .path__step h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream);
}

.page-home .path__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .path__more {
  margin: clamp(24px, 3vw, 36px) 0 0;
}

/* ---------- 宽窄对照 ---------- */

.page-home .modes {
  padding: var(--ph-section-gap) 0;
}

.page-home .modes__grid {
  display: grid;
  gap: var(--ph-rail-gap);
  align-items: center;
}

.page-home .modes__copy {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .modes__copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cream);
  opacity: 0.9;
}

.page-home .modes__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border-block: 1px solid var(--grid);
}

.page-home .modes__list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 2px;
  background: var(--ink);
}

.page-home .modes__key {
  font-size: 13px;
  color: var(--stone);
}

.page-home .modes__val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-home .modes__more {
  margin: 6px 0 0;
}

.page-home .modes__shot {
  position: relative;
  margin: 0;
  border: 1px solid var(--grid);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-home .modes__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ---------- 反馈带 ---------- */

.page-home .pin {
  padding: clamp(34px, 5vw, 64px) 0;
  background:
    linear-gradient(120deg, rgba(44, 229, 216, 0.14), transparent 62%),
    var(--ink-deep);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-home .pin__inner {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-home .pin__copy p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--cream);
  opacity: 0.88;
}

.page-home .pin__side {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-home .pin__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ph-breathe-fade 2.4s var(--ease) infinite;
}

.page-home .pin__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 留下来的理由 ---------- */

.page-home .why {
  padding: var(--ph-section-gap) 0;
  background: var(--ink);
}

.page-home .why__shot {
  position: relative;
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-home .why__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .why__grid {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-home .why__card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-deep);
}

.page-home .why__card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cyan);
}

.page-home .why__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .why__more {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

/* ---------- 响应式 ---------- */

@media (max-width: 700px) {
  .page-home .hero__stats {
    margin-left: 0;
    width: 100%;
    gap: 8px 18px;
  }

  .page-home .hero__pitch {
    width: 56%;
    top: -4%;
    right: -6%;
  }

  .page-home .feed-item {
    grid-template-columns: 46px minmax(0, 1fr);
    column-gap: 12px;
  }

  .page-home .modes__list li {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 10px;
  }

  .page-home .filter-count {
    margin-left: 0;
    width: 100%;
  }
}

@media (min-width: 860px) {
  .page-home .path__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .pin__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }

  .page-home .showing,
  .page-home .why__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .modes__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 1000px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 32fr) minmax(0, 68fr);
    align-items: start;
  }

  .page-home .feed__grid {
    grid-template-columns: minmax(0, 32fr) minmax(0, 68fr);
    align-items: start;
  }

  .page-home .feed__aside {
    position: sticky;
    top: calc(var(--head-h) + 20px);
  }
}

@media (hover: hover) {
  .page-home .feed-item:hover .feed-item__brief,
  .page-home .feed-item:focus-within .feed-item__brief {
    display: block;
    overflow: visible;
    -webkit-line-clamp: unset;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__hud-dot,
  .page-home .pin__dot {
    animation: none;
  }

  .page-home .feed-item,
  .page-home .filter-btn,
  .page-home .feed__link {
    transition: none;
  }

  .page-home .feed-item:hover,
  .page-home .feed-item:focus-within {
    transform: none;
  }
}