.page-home {
  --home-gap: clamp(16px, 2.4vw, 26px);
  --home-pad: clamp(44px, 7vw, 92px);
  display: block;
  background:
    radial-gradient(120% 70% at 92% -10%, rgba(11, 44, 70, 0.95), transparent 62%),
    radial-gradient(90% 60% at 0% 100%, rgba(255, 107, 74, 0.08), transparent 68%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

/* ---------- 封面首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: calc(var(--header-h) + 28px) 0 clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(78% 68% at 46% 26%, #000 0%, transparent 78%);
  mask-image: radial-gradient(78% 68% at 46% 26%, #000 0%, transparent 78%);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.page-home .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

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

.page-home .hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 9vw, 74px);
  line-height: 1.03;
  letter-spacing: -0.02em;
}

.page-home .hero-title-accent {
  color: var(--coral);
}

.page-home .hero-lede {
  margin: 0;
  max-width: 48ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-home .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-home .hero-meta span {
  position: relative;
  padding-left: 14px;
}

.page-home .hero-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--jade);
  transform: rotate(45deg);
}

/* 右侧竖排编号索引 */
.page-home .hero-index {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--harbor);
  box-shadow: 8px 8px 0 var(--void);
}

.page-home .hero-index-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  filter: saturate(0.85);
  z-index: 0;
}

.page-home .hero-index::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(2, 10, 18, 0.26) 0 2px,
    transparent 2px 5px
  );
  pointer-events: none;
  z-index: 1;
}

.page-home .idx-list {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 8px;
  list-style: none;
}

.page-home .idx-item a {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 12px 10px;
  color: var(--paper);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-home .idx-item a:hover,
.page-home .idx-item a:focus-visible {
  background: rgba(36, 224, 178, 0.1);
  border-left-color: var(--jade);
  transform: translateX(2px);
}

.page-home .idx-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  line-height: 1;
  color: var(--jade);
  text-shadow: 0 0 16px rgba(36, 224, 178, 0.45);
}

.page-home .idx-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-home .idx-foot {
  position: relative;
  z-index: 2;
  margin: 0;
  padding: 12px 18px 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 通用章节 ---------- */
.page-home .band {
  position: relative;
  padding: var(--home-pad) 0;
}

.page-home .band-head {
  display: grid;
  gap: 13px;
  max-width: 64ch;
  margin-bottom: clamp(24px, 3.4vw, 42px);
}

.page-home .band-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-home .band-lede {
  margin: 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-home .plate {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ---------- 五个编号栏目 ---------- */
.page-home .band--index {
  background: linear-gradient(180deg, rgba(11, 44, 70, 0.45), transparent 62%);
}

.page-home .index-grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .idx-card {
  position: relative;
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 20px 18px 22px;
  background: var(--harbor);
  border: 2px solid var(--line);
  box-shadow: 6px 6px 0 rgba(2, 10, 18, 0.75);
  color: var(--paper);
  text-decoration: none;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-home .idx-card:hover,
.page-home .idx-card:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--jade);
  box-shadow: 10px 10px 0 rgba(36, 224, 178, 0.2);
}

.page-home .idx-card-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8vw, 54px);
  line-height: 0.9;
  color: var(--coral);
}

.page-home .idx-card-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-home .idx-card-desc {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 双端入口 ---------- */
.page-home .band--dual {
  background: linear-gradient(180deg, transparent, rgba(36, 224, 178, 0.05) 50%, transparent);
}

.page-home .dual-grid {
  display: grid;
  gap: var(--home-gap);
}

.page-home .dual-card {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(180deg, rgba(14, 59, 69, 0.6), rgba(11, 44, 70, 0.92));
  border: 2px solid var(--line);
}

.page-home .dual-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
}

.page-home .dual-card--mobile::before {
  background: linear-gradient(180deg, var(--coral), rgba(255, 107, 74, 0.25));
}

.page-home .dual-card--desktop::before {
  background: linear-gradient(180deg, var(--jade), rgba(36, 224, 178, 0.25));
}

.page-home .dual-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.3;
}

.page-home .dual-card > p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .dual-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-home .dual-list li {
  position: relative;
  padding-left: 16px;
}

.page-home .dual-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--jade);
  transform: rotate(45deg);
}

.page-home .dual-card--mobile .dual-list li::before {
  background: var(--coral);
}

.page-home .dual-card .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-home .dual-bridge {
  display: none;
}

/* ---------- 规则细读 ---------- */
.page-home .rules-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-home .rules-copy {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .rules-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-home .rule-modes {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .rule-modes li {
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  background: rgba(11, 44, 70, 0.62);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .rule-modes strong {
  display: block;
  margin-bottom: 3px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-home .rules-copy .notice {
  margin: 2px 0 0;
}

.page-home .rules-copy .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-home .plate--tall {
  margin: 0;
  align-self: stretch;
}

.page-home .plate--tall img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 客服 ---------- */
.page-home .band--support {
  background: linear-gradient(135deg, rgba(14, 59, 69, 0.72), rgba(11, 44, 70, 0.25));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .support-steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .support-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  background: rgba(2, 10, 18, 0.38);
  border: 1px solid var(--line);
}

.page-home .step-num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--coral);
  color: var(--void);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1;
}

.page-home .support-steps strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  line-height: 1.5;
}

.page-home .support-steps p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .support-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .support-meta .rule-text {
  margin: 0;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.9;
  word-break: break-word;
}

/* ---------- 近期更新 ---------- */
.page-home .log-list {
  display: grid;
  gap: 10px;
}

.page-home .log-item {
  background: rgba(11, 44, 70, 0.55);
  border: 1px solid var(--line);
  transition: border-color 0.25s var(--ease);
}

.page-home .log-item[open] {
  border-color: rgba(36, 224, 178, 0.45);
}

.page-home .log-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-home .log-item summary::-webkit-details-marker {
  display: none;
}

.page-home .log-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--jade);
}

.page-home .log-item[open] summary::after {
  content: "−";
}

.page-home .log-title {
  flex: 1 1 200px;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-home .log-when {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-home .log-body {
  margin: 0 16px;
  padding: 14px 0 16px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-home .log-body p {
  margin: 0 0 10px;
}

.page-home .log-more {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 224, 178, 0.5);
  padding-bottom: 1px;
}

.page-home .log-more:hover,
.page-home .log-more:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-home .band--log > .container > .btn {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .page-home .support-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-home .dual-grid {
    grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr);
    align-items: stretch;
  }

  .page-home .dual-bridge {
    display: grid;
    place-items: center;
    background: var(--dual);
    color: var(--void);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.28em;
    writing-mode: vertical-rl;
    text-orientation: upright;
    border-radius: 2px;
  }
}

@media (min-width: 1024px) {
  .page-home .hero-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-home .index-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .idx-card,
  .page-home .idx-item a,
  .page-home .log-item {
    transition: none;
  }

  .page-home .idx-card:hover,
  .page-home .idx-card:focus-visible,
  .page-home .idx-item a:hover,
  .page-home .idx-item a:focus-visible {
    transform: none;
  }
}
<<<END>>>