/* ===== 平台服务页 · 页面专属样式 ===== */
.page-products {
  background: var(--paper);
  color: var(--ink);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

.page-products .breadcrumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--volt);
  padding-bottom: 2px;
}

.page-products .bc-sep {
  color: var(--silver);
}

/* ---------- 页头 ---------- */
.page-products .page-header {
  padding-top: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 3px solid var(--volt);
}

.page-products .page-header-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .header-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson);
  margin: 0 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.page-products .header-kicker::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--volt);
  flex-shrink: 0;
}

.page-products .page-title {
  font-size: clamp(2rem, 4.8vw, 3.25rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  max-width: 12em;
}

.page-products .lead {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 1.75rem;
  max-width: 46em;
}

.page-products .header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 页头控制台 ---------- */
.page-products .header-console {
  background: var(--blue);
  border: 1px solid var(--ink);
  color: var(--paper);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.page-products .header-console::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 4.5rem;
  height: 4.5rem;
  background: linear-gradient(135deg, transparent 50%, var(--volt) 50%);
  pointer-events: none;
}

.page-products .console-head {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(184, 196, 204, 0.25);
  position: relative;
  z-index: 1;
}

.page-products .console-dot {
  width: 0.625rem;
  height: 0.625rem;
  background: var(--volt);
  box-shadow: 0 0 10px rgba(0, 230, 138, 0.8);
}

.page-products .console-title {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-products .console-status {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--volt);
  border: 1px solid rgba(0, 230, 138, 0.5);
  padding: 0.125rem 0.375rem;
}

.page-products .console-body {
  margin: 0;
}

.page-products .console-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(184, 196, 204, 0.15);
  font-size: 0.875rem;
}

.page-products .console-row:last-child {
  border-bottom: 0;
}

.page-products .console-row dt {
  color: rgba(244, 239, 230, 0.6);
}

.page-products .console-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--paper);
}

/* ---------- 章节通用 ---------- */
.page-products .section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.page-products .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 0.5rem 1rem;
  margin-bottom: 2.5rem;
}

.page-products .section-number {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--silver);
  letter-spacing: -0.04em;
}

.page-products .section-head-copy .section-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--crimson);
  margin: 0 0 0.375rem;
}

.page-products .section-head-copy .section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  margin: 0;
  font-weight: 900;
}

.page-products .section-note {
  grid-column: 1 / -1;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
  max-width: 24rem;
  border-left: 3px solid var(--volt);
  padding-left: 0.875rem;
}

.page-products .section-head--light .section-title {
  color: var(--paper);
}

.page-products .section-head--light .section-kicker {
  color: var(--volt);
}

.page-products .section-head--light .section-note {
  color: rgba(244, 239, 230, 0.65);
  border-left-color: var(--volt);
}

/* ---------- 功能总览标签页 ---------- */
.page-products .feature-console {
  border: 1px solid var(--silver);
  background: var(--paper-deep);
  padding: clamp(1rem, 2.5vw, 2rem);
  position: relative;
}

.page-products .feature-console::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--volt);
}

.page-products .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  border-bottom: 1px solid var(--silver);
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
}

.page-products .tab-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  line-height: 1;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-products .tab-btn:hover {
  color: var(--ink);
  background: var(--paper);
}

.page-products .tab-btn[aria-selected="true"] {
  background: var(--blue);
  color: var(--volt);
  border-color: var(--ink);
}

.page-products .tab-index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  opacity: 0.7;
}

/* ---------- 功能面板内容 ---------- */
.page-products .module-layout,
.page-products .module-layout--center {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-products .module-layout--flip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-products .module-content {
  padding: 0.5rem 0;
}

.page-products .module-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--crimson);
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

.page-products .module-content p {
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0 0 1.25rem;
}

.page-products .module-content .panel-title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 0.875rem;
}

.page-products .feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.page-products .feature-list li {
  position: relative;
  padding: 0.625rem 0 0.625rem 1.75rem;
  border-bottom: 1px solid rgba(184, 196, 204, 0.55);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.page-products .feature-list li:last-child {
  border-bottom: 0;
}

.page-products .feature-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--volt);
  font-size: 0.8125rem;
}

.page-products .module-media {
  border: 1px solid var(--silver);
  background: var(--paper);
  padding: 0.75rem;
}

.page-products .module-media img {
  display: block;
  width: 100%;
}

.page-products .module-rank {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-products .rank-cell {
  background: var(--paper);
  border: 1px solid var(--silver);
  padding: 1.25rem;
  min-height: 116px;
  position: relative;
  transition: background 0.2s ease;
}

.page-products .rank-cell:hover {
  background: #fff;
}

.page-products .rank-cell::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2rem;
  height: 3px;
  background: var(--volt);
}

.page-products .rank-cell-label {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.875rem;
}

.page-products .rank-cell-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.page-products .rank-cell-note {
  font-size: 0.8125rem;
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0;
}

/* ---------- 资料库控制台 ---------- */
.page-products .archive-console {
  border: 1px solid var(--ink);
  background: var(--blue);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  overflow: hidden;
}

.page-products .archive-head,
.page-products .archive-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(184, 196, 204, 0.2);
  line-height: 1.4;
}

.page-products .archive-head {
  background: rgba(0, 0, 0, 0.25);
  color: var(--volt);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.6875rem;
}

.page-products .archive-row span:last-child {
  text-align: right;
}

.page-products .archive-row--now {
  background: var(--volt);
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 新用户首选板块 ---------- */
.page-products .section--newuser {
  background: var(--blue);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}

.page-products .section--newuser::after {
  content: "";
  position: absolute;
  right: -8rem;
  top: 0;
  width: 18rem;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 230, 138, 0.1), rgba(0, 230, 138, 0.02));
  transform: skewX(-8deg);
  pointer-events: none;
}

.page-products .section--newuser .section-head,
.page-products .section--newuser .starter-path {
  position: relative;
  z-index: 1;
}

.page-products .starter-path {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-products .path-step {
  background: rgba(244, 239, 230, 0.05);
  border: 1px solid rgba(184, 196, 204, 0.3);
  padding: 1.5rem;
  transition: transform 0.2s ease, background 0.2s ease;
}

.page-products .path-step:hover {
  background: rgba(244, 239, 230, 0.09);
  transform: translateY(-2px);
}

.page-products .step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--volt);
  border: 1px solid rgba(0, 230, 138, 0.5);
  padding: 0.125rem 0.375rem;
  margin-bottom: 1rem;
  letter-spacing: 0.08em;
}

.page-products .step-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  color: var(--paper);
}

.page-products .step-body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(244, 239, 230, 0.68);
}

/* ---------- 数据指标板块 ---------- */
.page-products .metrics-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.page-products .metric-card {
  background: var(--paper);
  border-left: 3px solid var(--volt);
  border-bottom: 1px solid var(--silver);
  padding: 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: background 0.2s ease;
}

.page-products .metric-card:hover {
  background: #fff;
}

.page-products .metric-icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  font-size: 0.8125rem;
  font-weight: 900;
  background: var(--blue);
  color: var(--volt);
}

.page-products .metric-card h3 {
  margin: 0 0 0.375rem;
  font-size: 1rem;
}

.page-products .metric-card p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-products .metrics-visual img {
  display: block;
  width: 100%;
  border: 1px solid var(--silver);
}

.page-products .metrics-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--silver);
  border: 1px solid var(--silver);
  margin-top: 2rem;
}

.page-products .metrics-stats .stat {
  background: var(--paper);
  padding: 1.25rem;
  text-align: center;
}

.page-products .metrics-stats .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.page-products .metrics-stats .stat-label {
  font-size: 0.8125rem;
  color: var(--ink-soft);
  font-family: var(--font-sans);
}

/* ---------- 会员体系板块 ---------- */
.page-products .section--member {
  background: var(--blue);
  color: var(--paper);
}

.page-products .member-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-products .member-benefits {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(184, 196, 204, 0.25);
  border: 1px solid rgba(184, 196, 204, 0.25);
}

.page-products .benefit-item {
  background: var(--blue);
  padding: 1.5rem;
  transition: background 0.2s ease;
}

.page-products .benefit-item:hover {
  background: rgba(244, 239, 230, 0.04);
}

.page-products .benefit-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.875rem;
  height: 1.875rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--volt);
  margin-bottom: 0.875rem;
}

.page-products .benefit-item h3 {
  font-size: 1rem;
  color: var(--paper);
  margin: 0 0 0.5rem;
}

.page-products .benefit-item p {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(244, 239, 230, 0.65);
  margin: 0;
}

.page-products .member-visual img {
  display: block;
  width: 100%;
  border: 1px solid var(--silver);
}

/* ---------- 版本演进 ---------- */
.page-products .version-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-products .version-item {
  border-left: 3px solid var(--silver);
  padding: 0 0 2rem 1.5rem;
  position: relative;
}

.page-products .version-item::before {
  content: "";
  position: absolute;
  left: -0.375rem;
  top: 0.375rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--paper);
  border: 2px solid var(--silver);
  border-radius: 50%;
}

.page-products .version-item--current::before {
  background: var(--volt);
  border-color: var(--volt);
  box-shadow: 0 0 10px rgba(0, 230, 138, 0.7);
}

.page-products .version-item--current {
  border-left-color: var(--volt);
}

.page-products .version-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: var(--ink);
  color: var(--volt);
  padding: 0.25rem 0.625rem;
  margin-bottom: 0.875rem;
}

.page-products .version-item--current .version-badge {
  background: var(--volt);
  color: var(--ink);
}

.page-products .version-body h3 {
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
}

.page-products .version-body p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 0.75rem;
}

/* ---------- 下载与多端支持 ---------- */
.page-products .section--download {
  background: var(--paper-deep);
}

.page-products .download-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .download-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.page-products .download-card {
  background: var(--paper);
  border: 1px solid var(--silver);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.page-products .platform-icon {
  display: inline-grid;
  place-items: center;
  width: 3.5rem;
  height: 2.5rem;
  background: var(--ink);
  color: var(--volt);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.page-products .download-card h3 {
  font-size: 1.0625rem;
  margin: 0 0 0.5rem;
}

.page-products .download-card p {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 1.25rem;
  flex-grow: 1;
}

.page-products .download-card .btn {
  align-self: flex-start;
}

.page-products .download-visual img {
  display: block;
  width: 100%;
  border: 1px solid var(--silver);
}

.page-products .download-note {
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--volt);
  padding-left: 1rem;
  line-height: 1.7;
}

.page-products .download-note a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--volt);
  text-underline-offset: 4px;
}

/* ===== 响应式布局 ===== */
@media (min-width: 640px) {
  .page-products .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .member-benefits {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .download-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .module-rank {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .page-products .section-note {
    grid-column: auto;
  }

  .page-products .section-head {
    grid-template-columns: auto 1fr auto;
    align-items: end;
  }

  .page-products .starter-path {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-products .metrics-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .version-timeline {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
  }

  .page-products .version-item {
    padding-right: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-products .page-header-grid {
    grid-template-columns: 3fr 2fr;
    gap: clamp(2rem, 4vw, 4rem);
    align-items: stretch;
  }

  .page-products .module-layout,
  .page-products .module-layout--flip {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-products .module-layout--flip .module-media {
    order: -1;
  }

  .page-products .module-layout--center {
    grid-template-columns: 5fr 7fr;
    gap: 3rem;
  }

  .page-products .metrics-layout {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
  }

  .page-products .member-layout {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
  }

  .page-products .download-layout {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: stretch;
  }
}

@media (min-width: 1100px) {
  .page-products .starter-path {
    grid-template-columns: repeat(4, 1fr);
  }
}