/* ============ 业务与功能页 · page-products ============ */
.page-products {
  --prod-block: 56px;
}

/* ---------- 首屏框景 ---------- */
.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 48px;
  background: var(--ink);
  color: var(--paper);
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(79, 163, 190, 0.11) 0 1px,
    transparent 1px 64px
  );
  pointer-events: none;
}

.page-products .prod-hero__crumb {
  position: relative;
  margin-bottom: 26px;
}

.page-products .prod-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-products .prod-hero__crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--rail-line);
}

.page-products .prod-hero__crumb a {
  color: var(--lake-bright);
  text-decoration: none;
}

.page-products .prod-hero__crumb a:hover {
  color: var(--gold);
}

.page-products .prod-hero__crumb li[aria-current] {
  color: var(--muted);
}

.page-products .prod-hero__grid {
  position: relative;
  display: grid;
  gap: 32px;
}

.page-products .prod-hero__frame {
  position: relative;
  padding: 26px 20px 28px;
  border: 1px solid var(--rail-line);
  border-top: 3px solid var(--lake);
}

.page-products .prod-hero__frame::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 22px 22px 0;
  border-color: transparent var(--ink) transparent transparent;
}

.page-products .prod-hero__eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-products .prod-hero__title {
  margin: 14px 0 16px;
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #ffffff;
}

.page-products .prod-hero__lead {
  margin: 0 0 26px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: #bccfd6;
}

.page-products .prod-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--rail-line);
  border: 1px solid var(--rail-line);
}

.page-products .prod-hero__meta-item {
  padding: 14px 16px;
  background: var(--slate);
}

.page-products .prod-hero__meta-item dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .prod-hero__meta-item dd {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

/* ---------- 通用区块头 ---------- */
.page-products .prod-head {
  max-width: 660px;
  margin: 0 0 28px;
}

.page-products .prod-head__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ochre);
}

.page-products .prod-head__title {
  margin: 0 0 12px;
  font-size: clamp(24px, 5vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
}

.page-products .prod-head__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 分栏研究板 ---------- */
.page-products .prod-board {
  padding: var(--prod-block) 0;
  background: var(--paper);
}

.page-products .prod-board__media {
  margin: 0 0 36px;
}

.page-products .prod-board__media .media__frame {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--lake-pale);
}

.page-products .prod-board__split {
  display: grid;
  gap: 36px;
}

.page-products .prod-col {
  min-width: 0;
}

.page-products .prod-col__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .prod-col__title::before {
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  background: var(--lake);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-products .prod-col--play .prod-col__title::before {
  background: var(--ochre);
}

.page-products .prod-col__note {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 服务清单折叠组 */
.page-products .prod-acc {
  border-top: 1px solid var(--line);
}

.page-products .prod-acc .accordion__item {
  border-bottom: 1px solid var(--line);
}

.page-products .prod-acc .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 4px;
  border: 0;
  background: none;
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background-color 0.24s var(--ease);
}

.page-products .prod-acc .accordion__trigger:hover {
  background: rgba(31, 110, 140, 0.06);
}

.page-products .prod-acc .accordion__index {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-products .prod-acc .accordion__body {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
}

.page-products .prod-svc__name {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-products .prod-svc__desc {
  display: block;
  margin-top: 5px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .prod-acc .accordion__mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-products .prod-acc .accordion__trigger[aria-expanded="true"] .accordion__mark {
  border-color: var(--lake);
  transform: rotate(-135deg);
}

.page-products .prod-acc .accordion__panel {
  padding: 0 4px 20px 34px;
}

.page-products .prod-acc .accordion__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #3c4a50;
}

/* 玩法卡片 */
.page-products .prod-play {
  display: grid;
  gap: 12px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-products .prod-play__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  background: #ffffff;
  overflow: hidden;
}

.page-products .prod-play__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 16px 16px 0;
  border-color: transparent var(--ink) transparent transparent;
  opacity: 0.9;
}

.page-products .prod-play__icon {
  display: block;
  width: 26px;
  height: 26px;
  background: var(--lake);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-products .prod-play__icon--ochre {
  background: var(--ochre);
}

.page-products .prod-play__card h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .prod-play__card p {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .prod-play__art {
  margin: 0;
}

.page-products .prod-play__art .media__frame {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--lake-pale);
}

/* ---------- 账户栏设置 ---------- */
.page-products .prod-setup {
  padding: var(--prod-block) 0;
  background: #edf3f5;
}

.page-products .prod-setup__grid {
  display: grid;
  gap: 32px;
}

.page-products .prod-setup__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ochre);
}

.page-products .prod-setup__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 5vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
}

.page-products .prod-setup__lead {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.8;
  color: #3c4a50;
}

.page-products .prod-checklist {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-products .prod-checklist li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: #3c4a50;
}

.page-products .prod-checklist__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 10px;
  background: var(--lake);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-products .prod-checklist strong {
  color: var(--ink);
}

.page-products .prod-setup__paths {
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--lake);
  background: #ffffff;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .prod-setup__paths a,
.page-products .prod-compare__more a {
  color: var(--lake);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 110, 140, 0.35);
}

.page-products .prod-setup__paths a:hover,
.page-products .prod-compare__more a:hover {
  color: var(--ochre);
  border-color: var(--ochre);
}

.page-products .prod-setup__media {
  margin: 0;
}

.page-products .prod-setup__media .media__frame {
  aspect-ratio: 1200 / 760;
  overflow: hidden;
  border: 1px solid rgba(11, 20, 24, 0.1);
  background: #ffffff;
}

/* ---------- 消息设置 ---------- */
.page-products .prod-msg {
  padding: var(--prod-block) 0;
  background: var(--slate);
  color: var(--paper);
}

.page-products .prod-msg__grid {
  display: grid;
  gap: 32px;
}

.page-products .prod-msg .prod-head__label {
  color: var(--gold);
}

.page-products .prod-msg .prod-head__title {
  color: #ffffff;
}

.page-products .prod-msg .prod-head__lead {
  color: #b9cdd4;
}

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

.page-products .prod-msg__points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: #cfdfe5;
}

.page-products .prod-msg__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--lake-bright);
}

.page-products .prod-msg__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .prod-switch {
  padding: 20px 18px;
  border: 1px solid var(--rail-line);
  background: var(--ink);
}

.page-products .prod-switch__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rail-line);
}

.page-products .prod-switch__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-products .prod-switch__track {
  position: relative;
  flex: 0 0 auto;
  display: inline-block;
  width: 46px;
  height: 24px;
  border-radius: 12px;
  background: var(--lake);
}

.page-products .prod-switch__knob {
  position: absolute;
  top: 3px;
  left: 25px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
}

.page-products .prod-switch__state {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 6px;
  font-size: 14px;
  color: #cfdfe5;
}

.page-products .prod-switch__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-msg__media {
  margin: 0;
}

.page-products .prod-msg__media .media__frame {
  aspect-ratio: 5 / 3;
  overflow: hidden;
  border: 1px solid var(--rail-line);
  background: #0f1c22;
}

.page-products .prod-msg__media .media__cap {
  color: var(--muted);
}

/* ---------- 版本对照 ---------- */
.page-products .prod-compare {
  padding: var(--prod-block) 0;
  background: var(--paper);
}

.page-products .prod-compare__scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: #ffffff;
}

.page-products .prod-compare__table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.page-products .prod-compare__caption {
  padding: 12px 18px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-compare__table th,
.page-products .prod-compare__table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  text-align: left;
  vertical-align: top;
}

.page-products .prod-compare__table thead th {
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.page-products .prod-compare__table tbody th {
  width: 24%;
  color: var(--ink);
  font-weight: 700;
}

.page-products .prod-compare__table tbody td {
  color: var(--muted);
}

.page-products .prod-compare__now {
  background: #f1f7f9;
  color: #2e4149 !important;
  box-shadow: inset 3px 0 0 var(--lake);
}

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

.page-products .prod-compare__media {
  margin: 28px 0 0;
}

.page-products .prod-compare__media .media__frame {
  aspect-ratio: 1400 / 680;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--lake-pale);
}

.page-products .prod-compare__more {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 操作流程 ---------- */
.page-products .prod-flow {
  padding: var(--prod-block) 0;
  background: var(--lake-pale);
}

.page-products .prod-flow__steps {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-flow__step {
  padding: 22px 20px 24px;
  border-top: 3px solid var(--lake);
  background: var(--paper);
}

.page-products .prod-flow__step:nth-child(2) {
  border-top-color: var(--ochre);
}

.page-products .prod-flow__step:nth-child(3) {
  border-top-color: var(--gold);
}

.page-products .prod-flow__num {
  display: block;
  margin-bottom: 12px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .prod-flow__step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .prod-flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 适用场景 ---------- */
.page-products .prod-scene {
  padding: var(--prod-block) 0;
  background: var(--paper);
}

.page-products .prod-scene__grid {
  display: grid;
  gap: 16px;
}

.page-products .prod-scene__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--lake);
  background: #ffffff;
}

.page-products .prod-scene__card--ochre {
  border-left-color: var(--ochre);
}

.page-products .prod-scene__card--gold {
  border-left-color: var(--gold);
}

.page-products .prod-scene__card--slate {
  border-left-color: var(--slate);
}

.page-products .prod-scene__card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .prod-scene__card p {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .prod-scene__link {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 110, 140, 0.35);
}

.page-products .prod-scene__link:hover {
  color: var(--ochre);
  border-color: var(--ochre);
}

/* ---------- 收束条 ---------- */
.page-products .prod-next {
  padding: 40px 0;
  background: var(--lake);
  color: #ffffff;
}

.page-products .prod-next__grid {
  display: grid;
  gap: 22px;
}

.page-products .prod-next__title {
  margin: 0 0 10px;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #ffffff;
}

.page-products .prod-next__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-products .prod-next__links {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.page-products .prod-next__links a {
  display: block;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  transition: background-color 0.24s var(--ease);
}

.page-products .prod-next__links li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.28);
}

.page-products .prod-next__links a:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* ---------- 图片统一处理 ---------- */
.page-products .media__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .media__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ============ 断点 ============ */
@media (min-width: 620px) {
  .page-products .prod-play {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-next__links li + li {
    border-top: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.28);
  }

  .page-products .prod-next__links li:nth-child(2n) {
    border-left: 1px solid rgba(255, 255, 255, 0.28);
  }

  .page-products .prod-next__links li:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, 0.28);
  }

  .page-products .prod-next__links li:nth-child(odd) {
    border-left: 0;
  }
}

@media (min-width: 720px) {
  .page-products .prod-scene__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero {
    padding: 32px 0 64px;
  }

  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
    align-items: end;
  }

  .page-products .prod-hero__frame {
    padding: 34px 32px 36px;
  }

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

  .page-products .prod-setup__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 52px;
    align-items: start;
  }

  .page-products .prod-msg__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 52px;
    align-items: start;
  }

  .page-products .prod-flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .prod-next__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
    gap: 40px;
    align-items: center;
  }

  .page-products .prod-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-products {
    --prod-block: 72px;
  }

  .page-products .prod-board__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
  }

  .page-products .prod-col--play {
    padding-left: 48px;
    border-left: 1px solid var(--line);
  }

  .page-products .prod-setup__lead,
  .page-products .prod-head__lead {
    font-size: 17px;
  }

  .page-products .prod-compare__caption {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-acc .accordion__mark,
  .page-products .prod-acc .accordion__trigger,
  .page-products .prod-next__links a {
    transition: none;
  }
}