.page-products {
  --p-cut: 16px;
  background:
    radial-gradient(120% 55% at 50% 0%, rgba(201, 162, 39, .07), transparent 62%),
    var(--velvet);
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(40px, 9vw, 88px) 0 clamp(34px, 6vw, 66px);
  border-bottom: 1px solid var(--edge);
}

.page-products .hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-products .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-products .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 17, 14, .8) 0%, rgba(11, 43, 36, .9) 55%, var(--velvet) 100%);
}

.page-products .hero-inner {
  display: grid;
  gap: 18px;
}

.page-products .hero-eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 7vw, 64px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--cream);
  max-width: 20ch;
}

.page-products .hero-lede {
  margin: 0;
  max-width: var(--read);
  font-size: 17px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .87;
}

.page-products .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .stat {
  padding-left: 14px;
  border-left: 1px solid var(--edge);
  min-width: 132px;
}

.page-products .stat-num {
  display: block;
  font-size: 28px;
  letter-spacing: .06em;
  line-height: 1.2;
}

.page-products .stat-label {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sand);
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

/* ---------- 章节节奏 ---------- */
.page-products .section {
  padding: clamp(44px, 8vw, 84px) 0;
}

.page-products .chapter-head {
  max-width: var(--read);
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-products .chapter-num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--sand);
  border-bottom: 1px solid var(--edge);
  padding-bottom: 6px;
  margin-bottom: 12px;
}

.page-products .chapter[data-chapter].is-active .chapter-num {
  color: var(--gold-hi);
  border-bottom-color: var(--gold);
}

.page-products .chapter-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4.4vw, 42px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-products .chapter-lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .8;
}

.page-products .chapter-grid {
  display: grid;
  gap: clamp(26px, 5vw, 46px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .chapter-main {
  min-width: 0;
}

.page-products .chapter-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .side-figure {
  border: 1px solid var(--edge);
  background: var(--night);
  padding: 10px;
  clip-path: polygon(0 var(--p-cut), var(--p-cut) 0, 100% 0, 100% calc(100% - var(--p-cut)), calc(100% - var(--p-cut)) 100%, 0 100%);
}

.page-products .side-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sand);
  border-left: 1px solid var(--edge);
  padding-left: 14px;
}

/* ---------- 目录横卷 ---------- */
.page-products .group-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 16px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .group-tab {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: grid;
  gap: 4px;
  min-width: 168px;
  padding: 14px 18px 16px;
  text-decoration: none;
  background: linear-gradient(160deg, rgba(16, 56, 46, .85), rgba(6, 26, 22, .9));
  border: 1px solid var(--edge);
  color: var(--cream);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
  clip-path: polygon(0 var(--p-cut), var(--p-cut) 0, 100% 0, 100% calc(100% - var(--p-cut)), calc(100% - var(--p-cut)) 100%, 0 100%);
}

.page-products .group-tab:hover,
.page-products .group-tab:focus-visible {
  border-color: var(--gold);
  transform: translateY(-1px);
}

.page-products .group-tab-index {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .group-tab-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.01em;
}

.page-products .group-tab-count {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--sand);
}

.page-products .catalog-note {
  max-width: var(--read);
  margin: 6px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--edge);
  font-size: 15px;
  line-height: 1.85;
  color: var(--sand);
}

/* ---------- 分组块 ---------- */
.page-products .group-block {
  --gshade: rgba(16, 56, 46, .42);
  background: linear-gradient(180deg, var(--gshade), rgba(6, 26, 22, .62));
  border: 1px solid var(--edge);
  padding: clamp(16px, 3vw, 26px);
  margin-bottom: 18px;
  clip-path: polygon(0 var(--p-cut), var(--p-cut) 0, 100% 0, 100% calc(100% - var(--p-cut)), calc(100% - var(--p-cut)) 100%, 0 100%);
}

.page-products .group-block--deep {
  --gshade: rgba(6, 26, 22, .78);
}

.page-products .group-block--light {
  --gshade: rgba(16, 56, 46, .64);
}

.page-products .group-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3vw, 25px);
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-products .group-title-count {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, .45);
  padding: 2px 8px;
}

/* ---------- 牌型条目 ---------- */
.page-products .pattern-list {
  display: grid;
  gap: 10px;
}

.page-products .pattern-item {
  background: linear-gradient(150deg, rgba(16, 56, 46, .7), rgba(4, 17, 14, .82));
  box-shadow: inset 0 0 0 1px var(--edge);
  clip-path: polygon(0 12px, 12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: box-shadow .22s var(--ease);
}

.page-products .pattern-item:hover {
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, .6);
}

.page-products .pattern-btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(48px, 1fr) auto auto;
  align-items: center;
  gap: 10px 14px;
  padding: 15px 16px;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.page-products .pattern-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-products .pattern-name {
  font-family: var(--font-mono);
  font-size: 19px;
  letter-spacing: .06em;
  color: var(--gold-hi);
  white-space: nowrap;
}

.page-products .freq-bar {
  position: relative;
  display: block;
  height: 6px;
  background: rgba(30, 74, 60, .75);
  min-width: 48px;
}

.page-products .freq-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-hi));
}

.page-products .freq-tip {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  z-index: 3;
  padding: 4px 8px;
  font-size: 12px;
  letter-spacing: .06em;
  white-space: nowrap;
  color: var(--cream);
  background: var(--ink);
  border: 1px solid var(--gold);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s var(--ease);
}

.page-products .pattern-btn:hover .freq-tip,
.page-products .pattern-btn:focus-visible .freq-tip {
  opacity: 1;
}

.page-products .pattern-range {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--sand);
  white-space: nowrap;
}

.page-products .disclosure-sign {
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform .25s var(--ease);
}

.page-products .pattern-btn[aria-expanded="false"] .disclosure-sign {
  transform: rotate(-45deg);
}

.page-products .pattern-panel {
  padding: 0 16px 16px;
}

.page-products .pattern-panel[hidden] {
  display: none;
}

.page-products .pattern-body {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-products .pattern-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px 14px;
  padding: 9px 0;
  border-top: 1px dashed rgba(30, 74, 60, .9);
}

.page-products .pattern-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
  padding-top: 3px;
}

.page-products .pattern-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cream);
  opacity: .86;
}

/* ---------- 优先级提示 ---------- */
.page-products .callout {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding: 18px 20px;
  background: rgba(192, 57, 43, .1);
  border-left: 2px solid var(--cinnabar);
}

.page-products .callout-mark {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cinnabar);
}

.page-products .callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .88;
}

/* ---------- 判定口径 ---------- */
.page-products .judge-grid {
  margin-bottom: 26px;
}

.page-products .rule-card {
  padding: 22px 20px;
  background: linear-gradient(165deg, rgba(16, 56, 46, .72), rgba(6, 26, 22, .86));
  border: 1px solid var(--edge);
  clip-path: polygon(0 var(--p-cut), var(--p-cut) 0, 100% 0, 100% calc(100% - var(--p-cut)), calc(100% - var(--p-cut)) 100%, 0 100%);
}

.page-products .rule-num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-products .rule-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  color: var(--cream);
}

.page-products .rule-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .82;
}

.page-products .mistake-block {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--edge);
  background: rgba(6, 26, 22, .6);
}

.page-products .mistake-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.6vw, 22px);
  color: var(--cream);
}

.page-products .mistake-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .mistake-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(30, 74, 60, .8);
}

.page-products .mistake-num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 2px;
}

.page-products .mistake-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .85;
}

.page-products .judge-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 频次与桌位 ---------- */
.page-products .freq-figure {
  margin-bottom: 22px;
}

.page-products .freq-figure .media {
  border: 1px solid var(--edge);
  padding: 10px;
  background: var(--night);
}

.page-products .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--edge);
  background: rgba(6, 26, 22, .5);
  -webkit-overflow-scrolling: touch;
}

.page-products .freq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .freq-table thead th {
  padding: 13px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--gold);
  background: rgba(4, 17, 14, .72);
  border-bottom: 1px solid var(--edge);
  white-space: nowrap;
}

.page-products .freq-table tbody td {
  padding: 12px 16px;
  color: var(--cream);
  opacity: .86;
  border-bottom: 1px solid rgba(30, 74, 60, .55);
  line-height: 1.7;
}

.page-products .freq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .freq-table tbody tr:hover td {
  background: rgba(201, 162, 39, .07);
}

.page-products .freq-table .pattern-cell {
  color: var(--gold-hi);
  letter-spacing: .06em;
  opacity: 1;
  white-space: nowrap;
}

.page-products .seat-grid {
  margin-top: 24px;
}

.page-products .seat-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  background: rgba(16, 56, 46, .5);
  border: 1px solid var(--edge);
  border-left: 2px solid rgba(201, 162, 39, .5);
}

.page-products .seat-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--cream);
}

.page-products .seat-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .82;
}

/* ---------- 速查卡 ---------- */
.page-products .deck-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-products .deck-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 18px 18px 16px;
  background: linear-gradient(150deg, rgba(16, 56, 46, .62), rgba(6, 26, 22, .8));
  border: 1px solid var(--edge);
}

.page-products .step-num {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .06em;
  color: var(--gold-hi);
}

.page-products .step-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--cream);
}

.page-products .step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .82;
}

.page-products .deck-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
  .page-products .pattern-btn {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "name sign"
      "bar range";
    gap: 10px 12px;
  }

  .page-products .pattern-name { grid-area: name; }
  .page-products .disclosure-sign { grid-area: sign; justify-self: end; }
  .page-products .freq-bar { grid-area: bar; }
  .page-products .pattern-range { grid-area: range; }

  .page-products .pattern-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-products .stat {
    min-width: 118px;
  }
}

@media (min-width: 760px) {
  .page-products .group-nav {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    overflow: visible;
  }

  .page-products .group-tab {
    min-width: 0;
  }
}

@media (min-width: 960px) {
  .page-products .chapter-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }

  .page-products .chapter-grid--reverse {
    grid-template-columns: 320px minmax(0, 1fr);
  }

  .page-products .chapter-grid--reverse .chapter-main {
    order: 2;
  }

  .page-products .chapter-grid--reverse .chapter-side {
    order: 1;
  }

  .page-products .chapter-side {
    position: sticky;
    top: 96px;
  }

  .page-products .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .group-tab,
  .page-products .pattern-item,
  .page-products .freq-tip,
  .page-products .disclosure-sign {
    transition: none;
  }

  .page-products .group-tab:hover,
  .page-products .group-tab:focus-visible {
    transform: none;
  }
}