/* ============ 数据工具台 · 页面级样式 ============ */
.page-products {
  --tools-rail: 300px;
  --tools-gap: 20px;
  --tools-stroke: rgba(99, 210, 214, 0.55);
  background: var(--ice-deep);
  color: var(--text-on-dark);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  position: relative;
  padding: 20px 0 clamp(44px, 6vw, 88px);
  background:
    radial-gradient(130% 90% at 6% -18%, rgba(99, 210, 214, 0.20), transparent 58%),
    radial-gradient(100% 80% at 98% 2%, rgba(225, 74, 43, 0.26), transparent 62%),
    var(--ice-deep);
  border-bottom: 3px solid var(--line-dark);
  overflow: hidden;
}

.page-products .tools-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(185, 233, 231, 0.05) 0 1px, transparent 1px 48px);
  pointer-events: none;
}

.page-products .tools-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumb {
  color: var(--mist);
  font-size: 13px;
  margin-bottom: clamp(22px, 4vw, 44px);
}

.page-products .breadcrumb a {
  color: var(--crystal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb a:hover {
  border-bottom-color: var(--crystal);
}

.page-products .tools-hero__version {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(72px, 19vw, 250px);
  line-height: 0.8;
  letter-spacing: -0.05em;
  color: rgba(99, 210, 214, 0.12);
  -webkit-text-stroke: 1.5px var(--tools-stroke);
  user-select: none;
}

.page-products .tools-hero__copy {
  margin-top: clamp(-10px, -1.4vw, -20px);
  max-width: 62ch;
}

.page-products .tools-hero__title {
  margin: 10px 0 0;
  max-width: 24ch;
  color: #fff;
  font-size: clamp(30px, 5.2vw, 62px);
  line-height: 1.06;
}

.page-products .tools-hero__lead {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 3vw, 30px);
  color: var(--text-on-dark);
  font-size: 17px;
  line-height: 1.85;
}

.page-products .tools-hero__lead p {
  margin: 0;
}

.page-products .tools-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-products .tools-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: clamp(30px, 4.5vw, 52px) 0 0;
  padding: 18px 0 0;
  border-top: 2px solid var(--line-dark);
  list-style: none;
}

.page-products .tools-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .tools-hero__facts .num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-products .tools-hero__facts span:last-child {
  font-size: 13px;
  color: var(--mist);
  letter-spacing: 0.05em;
}

@media (min-width: 900px) {
  .page-products .tools-hero__lead {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}

/* ---------- 区块底色节奏 ---------- */
.page-products .tools-block {
  border-bottom: 3px solid var(--line-deep);
}

.page-products .tools-block--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-products .tools-block--paper-old {
  background: var(--paper-old);
  color: var(--ink);
}

.page-products .tools-block--night {
  background: var(--ice-night);
  color: var(--text-on-dark);
}

.page-products .tools-block--deep {
  background: var(--ice-deep);
  color: var(--text-on-dark);
}

.page-products .tools-block--paper .index-label,
.page-products .tools-block--paper-old .index-label {
  color: var(--ember);
}

.page-products .section-head {
  display: grid;
  gap: 12px;
  align-items: end;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-products .section-head__title,
.page-products .section-head h2 {
  margin: 6px 0 0;
}

.page-products .section-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  max-width: 42ch;
}

.page-products .tools-block--paper .section-head__note,
.page-products .tools-block--paper-old .section-head__note {
  color: #5b5147;
}

.page-products .tools-block--night .section-head__note,
.page-products .tools-block--deep .section-head__note {
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-products .section-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 30ch);
    gap: 30px;
  }
}

/* ---------- 通用双栏（图文） ---------- */
.page-products .tools-split {
  display: grid;
  gap: clamp(22px, 3.6vw, 44px);
  align-items: start;
}

.page-products .tools-split__text p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.85;
}

.page-products .tools-split__foot {
  padding-left: 14px;
  border-left: 3px solid var(--ember);
  font-size: 15px;
  color: #5b5147;
}

.page-products .tools-split__figure {
  margin: 0;
}

.page-products .tools-block--night .tools-split__foot,
.page-products .tools-block--deep .tools-split__foot {
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-products .tools-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
  .page-products .tools-split--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
  .page-products .tools-split--reverse .tools-split__text {
    order: 2;
  }
}

/* ---------- 版本变化 ---------- */
.page-products .tools-figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-products .tools-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: #6a5f54;
  letter-spacing: 0.02em;
}

.page-products .change-list {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--ink);
}

.page-products .change {
  border-bottom: 2px solid var(--ink);
}

.page-products .change__summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

.page-products .change__summary::-webkit-details-marker {
  display: none;
}

.page-products .change__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--ember);
  line-height: 1;
}

.page-products .change[open] .change__summary::after {
  content: "–";
}

.page-products .change__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ember);
  flex: none;
}

.page-products .change__title {
  font-size: clamp(17px, 2.2vw, 22px);
  color: var(--ink);
}

.page-products .change__body {
  padding: 0 4px 20px 44px;
}

.page-products .change__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  max-width: 60ch;
  color: #4a4139;
}

/* ---------- 登录与关注 ---------- */
.page-products .step-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-products .step {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: rgba(11, 27, 51, 0.55);
  border: 2px solid var(--line-dark);
  border-left: 5px solid var(--crystal);
}

.page-products .step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--crystal);
  margin-bottom: 8px;
}

.page-products .step__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.page-products .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-on-dark);
  max-width: 46ch;
}

.page-products .signin-note {
  margin-top: clamp(26px, 4vw, 40px);
  padding: 22px;
  background: rgba(99, 210, 214, 0.07);
}

.page-products .dot-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .dot-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
}

.page-products .dot-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 7px;
  height: 7px;
  background: var(--ember);
  transform: rotate(45deg);
}

.page-products .dot-list--dark li {
  color: var(--text-on-dark);
}

@media (min-width: 900px) {
  .page-products .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 苹果端 ---------- */
.page-products .spec-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
}

.page-products .spec-list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(25, 20, 16, 0.18);
}

.page-products .spec-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ember);
}

.page-products .spec-list__val {
  font-size: 15px;
  line-height: 1.75;
  color: #4a4139;
}

@media (min-width: 640px) {
  .page-products .spec-list li {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

/* ---------- 赛季区间 ---------- */
.page-products .mini-steps {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: mini;
  display: grid;
  gap: 12px;
}

.page-products .mini-steps li {
  position: relative;
  padding-left: 38px;
  font-size: 15px;
  line-height: 1.75;
  color: #4a4139;
  counter-increment: mini;
}

.page-products .mini-steps li::before {
  content: counter(mini, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ember);
  border-bottom: 2px solid var(--ember);
}

.page-products .range-uses {
  display: grid;
  gap: 0;
  margin-top: clamp(28px, 4.4vw, 48px);
  border-top: 2px solid var(--ink);
}

.page-products .range-use {
  padding: 20px 0;
  border-bottom: 1px solid rgba(25, 20, 16, 0.2);
}

.page-products .range-use__title {
  margin: 6px 0 8px;
  font-size: 18px;
  color: var(--ink);
}

.page-products .range-use p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4a4139;
  max-width: 48ch;
}

@media (min-width: 860px) {
  .page-products .range-uses {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 30px;
  }
  .page-products .range-use {
    border-bottom: none;
    border-right: 1px solid rgba(25, 20, 16, 0.18);
    padding-right: 24px;
  }
  .page-products .range-use:last-child {
    border-right: none;
  }
}

/* ---------- 工具台双栏 ---------- */
.page-products .tools-desk {
  display: grid;
  gap: 28px;
}

.page-products .chip-stack {
  margin-bottom: 22px;
}

.page-products .chip-stack__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.page-products .tools-desk__rail .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .tools-desk__hint {
  margin: 6px 0 0;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
  background: rgba(99, 210, 214, 0.07);
  border-left: 4px solid var(--crystal);
}

.page-products [data-filter-item][hidden] {
  display: none;
}

@media (min-width: 1024px) {
  .page-products .tools-desk {
    grid-template-columns: var(--tools-rail) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .page-products .tools-desk__rail {
    position: sticky;
    top: 88px;
  }
}

/* ---------- 卡片瀑布流 ---------- */
.page-products .tools-flow {
  columns: 1;
  column-gap: var(--tools-gap);
}

.page-products .tools-flow > * {
  break-inside: avoid;
  margin-bottom: var(--tools-gap);
}

.page-products .tool-card {
  display: block;
  padding: 20px;
  background: var(--ice-night);
  border: 2px solid var(--line-dark);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.3);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.page-products .tool-card:hover,
.page-products .tool-card:focus-within {
  border-color: var(--ember);
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 var(--hard-shadow-ember);
}

.page-products .tool-card--media {
  padding: 0 0 20px;
}

.page-products .tool-card__media {
  margin: 0 0 16px;
  border-bottom: 2px solid var(--line-dark);
}

.page-products .tool-card--media > .index-label,
.page-products .tool-card--media > .tool-card__title,
.page-products .tool-card--media > .tool-card__desc,
.page-products .tool-card--media > .tool-card__peek,
.page-products .tool-card--media > .tool-card__link {
  margin-left: 20px;
  margin-right: 20px;
}

.page-products .tool-card__title {
  margin: 8px 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
}

.page-products .tool-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-products .tool-card__peek {
  max-height: 0;
  overflow: hidden;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
  opacity: 0;
  transition: max-height 220ms ease, opacity 220ms ease, margin-top 220ms ease;
}

.page-products .tool-card:hover .tool-card__peek,
.page-products .tool-card:focus-within .tool-card__peek {
  max-height: 40px;
  opacity: 1;
  margin-top: 12px;
}

.page-products .tool-card__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  color: var(--crystal);
  text-decoration: none;
  border-bottom: 1px solid rgba(99, 210, 214, 0.45);
}

.page-products .tool-card__link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

@media (hover: none) {
  .page-products .tool-card__peek {
    max-height: 40px;
    opacity: 1;
    margin-top: 12px;
  }
}

@media (min-width: 680px) {
  .page-products .tools-flow {
    columns: 2;
  }
}

/* ---------- 遇到问题 ---------- */
.page-products .help-grid {
  display: grid;
  gap: 18px;
}

.page-products .help-card {
  padding: 22px;
  background: rgba(11, 27, 51, 0.5);
  border: 2px solid var(--line-dark);
}

.page-products .help-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
}

.page-products .help-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-products .help-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

@media (min-width: 860px) {
  .page-products .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
}

/* ---------- 图片与响应式兜底 ---------- */
.page-products img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

@media (max-width: 480px) {
  .page-products .tools-hero__facts {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .page-products .tools-hero__facts li:last-child {
    grid-column: span 2;
  }
  .page-products .change__body {
    padding-left: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tool-card,
  .page-products .tool-card__peek {
    transition: opacity 200ms ease;
    transform: none;
  }
  .page-products .tool-card:hover,
  .page-products .tool-card:focus-within {
    transform: none;
  }
}
</main>