.page-home {
  --home-panel-pad: clamp(24px, 4vw, 56px);
  --home-section-gap: clamp(40px, 6vw, 76px);
}

/* ===== 首屏 ===== */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding-block: clamp(108px, 15vh, 168px) clamp(40px, 6vw, 72px);
  color: var(--cream);
  background:
    radial-gradient(120% 90% at 92% -10%, rgba(22, 217, 227, 0.2), transparent 58%),
    radial-gradient(90% 70% at 0% 108%, rgba(245, 166, 35, 0.12), transparent 62%),
    var(--ink);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(85% 72% at 50% 28%, #000 38%, transparent 100%);
  mask-image: radial-gradient(85% 72% at 50% 28%, #000 38%, transparent 100%);
}

.page-home .hero-scan {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--cyan);
  opacity: 0;
  box-shadow: 0 0 26px 5px rgba(22, 217, 227, 0.4);
  animation: homeScan 11s var(--ease) infinite;
  pointer-events: none;
}

@keyframes homeScan {
  0% { transform: translateY(-58vh); opacity: 0; }
  12% { opacity: 0.5; }
  80% { opacity: 0.5; }
  100% { transform: translateY(0); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-scan { animation: none; opacity: 0.3; }
}

.page-home .hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-home .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(12px, 2vw, 18px);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}

.page-home .hero-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(22, 217, 227, 0.18);
  flex: none;
}

.page-home .hero-title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(42px, 10.5vw, 116px);
  line-height: 0.94;
  letter-spacing: -0.045em;
  color: var(--paper);
  text-wrap: balance;
}

.page-home .hero-title span {
  color: var(--cyan);
}

.page-home .hero-lede {
  max-width: 48ch;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: clamp(14.5px, 1.55vw, 17px);
  line-height: 1.85;
  color: rgba(247, 241, 227, 0.78);
}

.page-home .hero-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--panel);
}

.page-home .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.94;
}

.page-home .hero-badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: grid;
  gap: 2px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  background: rgba(11, 27, 43, 0.8);
  border: 1px solid rgba(22, 217, 227, 0.42);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-home .hero-badge__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: rgba(159, 243, 242, 0.85);
}

.page-home .hero-badge__num {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cyan);
  line-height: 1.1;
}

.page-home .hero-routes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-home .route-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 14px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(159, 243, 242, 0.26);
  background: rgba(255, 253, 247, 0.05);
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-home .route-pill::after {
  content: "→";
  font-family: var(--mono);
  font-size: 14px;
  color: var(--cyan);
  flex: none;
}

.page-home .route-pill:hover,
.page-home .route-pill:focus-visible {
  border-color: var(--cyan);
  background: rgba(22, 217, 227, 0.12);
  transform: translateY(-2px);
}

.page-home .route-pill--primary {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

.page-home .route-pill--primary::after {
  color: var(--ink);
}

.page-home .route-pill--primary:hover,
.page-home .route-pill--primary:focus-visible {
  background: var(--amber-soft);
  border-color: var(--amber-soft);
}

/* ===== 主体两栏 ===== */
.page-home .home-stage {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding-block: clamp(36px, 6vw, 80px) clamp(56px, 8vw, 96px);
}

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

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

.page-home .rail-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .rail-list::-webkit-scrollbar {
  display: none;
}

.page-home .rail-link {
  display: block;
  padding: 9px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--graphite);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .rail-link:hover,
.page-home .rail-link:focus-visible {
  border-color: var(--line-light);
}

.page-home .rail-link.is-active {
  color: var(--ink);
  background: var(--paper);
  border-color: rgba(22, 217, 227, 0.6);
  box-shadow: var(--shadow-card);
}

/* ===== 章节通用 ===== */
.page-home .home-section {
  min-width: 0;
}

.page-home .home-section + .home-section {
  margin-top: var(--home-section-gap);
}

.page-home .section-num {
  display: block;
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .section-num--on-dark {
  color: rgba(159, 243, 242, 0.72);
}

.page-home .section-head h2 {
  margin: 0 0 12px;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--ink);
  max-width: 20ch;
}

.page-home .section-lede {
  max-width: 60ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-home .section-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ===== 01 版本对照 ===== */
.page-home .compare-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .compare-card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

.page-home .compare-card--now {
  border-color: rgba(22, 217, 227, 0.55);
  background: linear-gradient(180deg, rgba(159, 243, 242, 0.24), var(--paper) 46%);
}

.page-home .compare-card--now::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
}

.page-home .compare-tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(16, 42, 67, 0.07);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .compare-card--now .compare-tag {
  background: rgba(22, 217, 227, 0.18);
  color: var(--panel);
}

.page-home .compare-card h3 {
  margin: 0 0 16px;
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home .diff-list {
  margin: 0;
}

.page-home .diff-row {
  padding: 13px 0;
  border-top: 1px dashed var(--line-light);
}

.page-home .diff-row:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-home .diff-row dt {
  margin-bottom: 4px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .diff-row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--graphite);
}

.page-home .compare-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .compare-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  object-fit: cover;
}

.page-home .compare-figure figcaption,
.page-home .tag-figure figcaption,
.page-home .update-figure figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--slate);
}

/* ===== 02 帮助标签 ===== */
.page-home .section-tags {
  padding: var(--home-panel-pad);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-light);
  background: var(--paper);
}

.page-home .tag-layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .tag-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-home .help-tag {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx name"
    "idx desc";
  align-content: center;
  gap: 3px 12px;
  height: 100%;
  padding: 15px 17px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--cream);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-home .help-tag:hover,
.page-home .help-tag:focus-visible {
  border-color: var(--cyan);
  background: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.page-home .help-tag__idx {
  grid-area: idx;
  align-self: center;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.16);
  font-family: var(--mono);
  font-size: 10.5px;
  color: #A06000;
}

.page-home .help-tag__name {
  grid-area: name;
  font-size: 15.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .help-tag__desc {
  grid-area: desc;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-home .tag-figure {
  margin: 0;
}

.page-home .tag-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  object-fit: cover;
}

/* ===== 03 更新摘要 ===== */
.page-home .section-updates {
  border-radius: var(--radius-lg);
  padding: var(--home-panel-pad);
  color: var(--cream);
  background:
    radial-gradient(90% 80% at 100% 0%, rgba(22, 217, 227, 0.16), transparent 56%),
    radial-gradient(70% 60% at 0% 100%, rgba(245, 166, 35, 0.12), transparent 60%),
    var(--ink);
}

.page-home .section-updates .section-head h2 {
  color: var(--paper);
}

.page-home .section-head--split {
  display: grid;
  gap: 16px;
  align-items: end;
}

.page-home .updates-hint {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(159, 243, 242, 0.7);
}

.page-home .update-track {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0 0 10px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 82%);
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 2px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-home .update-card {
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-dark);
  background: rgba(255, 253, 247, 0.06);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-home .update-card:hover {
  border-color: rgba(22, 217, 227, 0.55);
  background: rgba(22, 217, 227, 0.09);
}

.page-home .update-ver {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-home .update-line {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .update-type {
  justify-self: start;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(159, 243, 242, 0.4);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

.page-home .update-desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(247, 241, 227, 0.74);
}

.page-home .update-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .update-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-dark);
  object-fit: cover;
}

.page-home .update-figure figcaption {
  color: rgba(247, 241, 227, 0.6);
}

.page-home .updates-foot {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 241, 227, 0.72);
}

/* ===== 04 数据条 ===== */
.page-home .stat-strip {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-home .stat-item {
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-light);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

.page-home .stat-item::before {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  margin-bottom: 12px;
  border-radius: 2px;
  background: var(--amber);
}

.page-home .stat-num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.page-home .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--slate);
}

.page-home .numbers-foot {
  display: grid;
  gap: 18px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  background: rgba(16, 42, 67, 0.04);
}

.page-home .numbers-foot p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-home .numbers-foot .btn {
  justify-self: start;
}

/* ===== 05 三步上手 ===== */
.page-home .start-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .start-step {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-light);
  background: var(--paper);
}

.page-home .start-step__num {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--vermilion);
}

.page-home .start-step h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home .start-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-home .start-foot {
  margin-top: clamp(20px, 3vw, 28px);
  padding-top: clamp(18px, 2.6vw, 26px);
  border-top: 1px solid var(--line-light);
}

.page-home .start-foot p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* ===== 响应式 ===== */
@media (min-width: 540px) {
  .page-home .tag-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 700px) {
  .page-home .hero-routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 640px;
    margin-left: auto;
  }

  .page-home .update-track {
    grid-auto-columns: minmax(270px, 44%);
  }

  .page-home .numbers-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-home .compare-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .start-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .section-head--split {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-home .tag-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: start;
  }

  .page-home .update-track {
    grid-auto-columns: minmax(280px, 31%);
  }
}

@media (min-width: 1000px) {
  .page-home .stat-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-home .home-stage {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-home .home-rail {
    position: sticky;
    top: 112px;
  }

  .page-home .rail-title {
    margin-bottom: 14px;
  }

  .page-home .rail-list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .rail-list li + li {
    margin-top: 4px;
  }

  .page-home .rail-link {
    white-space: normal;
    padding: 10px 14px;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  }

  .page-home .rail-link.is-active {
    border-left-color: var(--cyan);
  }
}

@media (min-width: 1240px) {
  .page-home .update-track {
    grid-auto-columns: minmax(290px, 26%);
  }
}
<<<END>>>