/* ==========================================================
   应用中心 /apps/ —— 页面作用域 .page-products
   ========================================================== */

.page-products {
  --tint: #EDF1F7;
  --chan-pad: clamp(18px, 2.6vw, 34px);
}

/* ---------- 首屏 ---------- */

.page-products .apps-hero {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding-block: clamp(28px, 5vw, 66px) clamp(24px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}

.page-products .apps-hero__head {
  max-width: 64ch;
}

.page-products .apps-hero h1 {
  margin: 12px 0 18px;
  max-width: 14ch;
}

.page-products .apps-hero .lede {
  margin: 0;
  color: var(--ink-soft);
}

/* 路牌形态的第二栏说明 */
.page-products .apps-sign {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  max-width: 78ch;
  padding: 16px clamp(18px, 2.6vw, 32px);
  background: var(--ink);
  color: var(--on-dark);
  border-left: 4px solid var(--crimson);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-products .apps-sign__k {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .apps-sign__t {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--on-dark);
}

/* ---------- 右侧内容列 ---------- */

.page-products .apps-flow {
  display: flex;
  flex-direction: column;
  gap: clamp(42px, 6vw, 88px);
  min-width: 0;
}

.page-products .apps-sec {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-products .apps-sec__head {
  margin-bottom: clamp(18px, 2.6vw, 32px);
}

.page-products .apps-sec__head .display--sm {
  margin: 8px 0 10px;
}

.page-products .apps-sec__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--slate);
  font-size: 16px;
  line-height: 1.8;
}

/* ---------- 通道对比表 ---------- */

.page-products .cmp-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .cmp {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .cmp__cap {
  text-align: left;
  padding: 14px clamp(14px, 2vw, 20px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-products .cmp thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ink);
  color: var(--on-dark);
  text-align: left;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.16em;
  padding: 13px clamp(14px, 2vw, 20px);
  white-space: nowrap;
}

.page-products .cmp tbody th,
.page-products .cmp tbody td {
  padding: 15px clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products .cmp tbody tr:last-child th,
.page-products .cmp tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .cmp tbody tr:nth-child(even) {
  background: var(--tint);
}

.page-products .cmp tbody th {
  font-weight: 600;
  color: var(--ink);
  border-left: 3px solid transparent;
  white-space: nowrap;
}

.page-products .cmp tbody th .mono {
  display: block;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-products .cmp tbody tr.is-current th {
  border-left-color: var(--crimson);
  color: var(--ink);
}

.page-products .cmp tbody tr.is-current {
  background: #FBF7F0;
}

.page-products .cmp__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 苹果版入口 ---------- */

.page-products .entry {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-products .fact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-products .fact-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 0 16px 16px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  line-height: 1.8;
}

.page-products .fact-list__k {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-products .fact-list__t {
  font-size: 15.5px;
  color: var(--ink-soft);
}

.page-products .entry__media {
  margin: 0;
}

.page-products .entry__media img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-products .media__cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 通道卡片（不等宽纵列） ---------- */

.page-products .chan {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.2vw, 28px);
  padding: var(--chan-pad);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: -6px 6px 0 var(--sand);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-products .chan--beta {
  margin-left: min(4%, 56px);
  margin-right: min(2%, 28px);
}

.page-products .chan--archive {
  margin-left: min(9%, 120px);
  margin-right: min(6%, 80px);
  box-shadow: -5px 5px 0 var(--tint);
}

.page-products .chan__ver {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sand);
}

.page-products .chan__num {
  font-size: clamp(32px, 6.4vw, 56px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-products .chan--beta .chan__num {
  color: var(--jade);
}

.page-products .chan--archive .chan__num {
  font-size: clamp(26px, 4.4vw, 38px);
  color: var(--slate);
}

.page-products .chan__lane {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .chan--beta .chan__lane {
  color: var(--jade);
}

.page-products .chan--archive .chan__lane {
  color: var(--slate);
}

.page-products .chan__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-bottom: 10px;
}

.page-products .chan__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink-soft);
}

.page-products .chan__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .chan__facts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .chan__facts li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .chan__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

.page-products .chan--beta .chan__facts li::before {
  background: var(--jade);
}

.page-products .chan--archive .chan__facts li::before {
  background: var(--slate);
}

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

.page-products .chan__media {
  margin: 0;
}

.page-products .chan__media img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

/* ---------- 安装四步 ---------- */

.page-products .apps-sec--steps {
  padding-top: clamp(22px, 3vw, 40px);
  border-top: 1px solid var(--line);
}

.page-products .stepmap {
  margin: 0 0 clamp(18px, 2.4vw, 30px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .stepmap svg {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

.page-products .stepmap__line {
  fill: none;
  stroke: var(--crimson);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: ps-draw 0.9s ease-out forwards;
}

@keyframes ps-draw {
  to { stroke-dashoffset: 0; }
}

.page-products .stepmap__node circle {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 2;
}

.page-products .stepmap__node text {
  font-family: var(--font-mono);
  font-size: 15px;
  fill: var(--ink);
  text-anchor: middle;
  dominant-baseline: central;
}

.page-products .steps,
.page-products .qa {
  display: grid;
  gap: 12px;
}

.page-products .app-fold {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 clamp(16px, 2.4vw, 28px);
}

.page-products .app-fold[open] {
  box-shadow: inset 3px 0 0 var(--crimson);
}

.page-products .app-fold .fold__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
}

.page-products .app-fold .fold__summary::-webkit-details-marker {
  display: none;
}

.page-products .app-fold .fold__summary .fold__chev {
  margin-left: auto;
}

.page-products .app-fold .fold__label {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
}

.page-products .step__no {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-products .app-fold .fold__body {
  padding: 0 0 18px;
}

.page-products .app-fold .fold__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .step__tip {
  margin-top: 10px !important;
  padding-left: 14px;
  border-left: 2px solid var(--jade);
  font-size: 14.5px !important;
  color: var(--slate) !important;
}

/* ---------- 疑问收尾 ---------- */

.page-products .apps-next {
  margin-top: clamp(22px, 3vw, 36px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  padding: clamp(18px, 2.4vw, 26px) clamp(18px, 2.6vw, 32px);
  background: var(--ink);
  color: var(--on-dark);
  border-radius: var(--radius);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-products .apps-next__t {
  margin: 0;
  flex: 1 1 260px;
  font-size: 16px;
  line-height: 1.7;
}

.page-products .apps-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .apps-next .btn--ghost {
  border-color: var(--gold);
  color: var(--gold);
  background: transparent;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-products .fact-list li {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 0 18px;
    padding-left: 20px;
  }

  .page-products .fact-list__k {
    padding-top: 2px;
  }
}

@media (min-width: 900px) {
  .page-products .entry {
    grid-template-columns: minmax(0, 1fr) 320px;
  }

  .page-products .chan {
    grid-template-columns: 146px minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-products .chan__ver {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 0 18px 0 0;
    border-bottom: 0;
    border-right: 1px solid var(--sand);
    min-height: 100%;
  }

  .page-products .chan--archive {
    grid-template-columns: 146px minmax(0, 1fr);
  }

  .page-products .chan--archive .chan__media {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1200px) {
  .page-products .chan {
    grid-template-columns: 168px minmax(0, 1fr) 340px;
  }

  .page-products .chan--archive {
    grid-template-columns: 168px minmax(0, 1fr);
  }
}

@media (max-width: 899px) {
  .page-products .chan--archive {
    margin-left: 0;
    margin-right: 0;
  }

  .page-products .chan--beta {
    margin-left: 0;
    margin-right: 0;
  }

  .page-products .chan__media {
    order: 3;
  }

  .page-products .chan__num {
    font-size: clamp(32px, 9vw, 48px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .stepmap__line {
    animation: none;
    stroke-dashoffset: 0;
  }
}