.page-products {
  --biz-cell: var(--panel);
  --biz-deep: var(--navy-deep);
  --biz-hair: 1px solid var(--line);
  display: block;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
}

.page-products .section {
  padding: 52px 0;
  border-top: var(--biz-hair);
}

.page-products .section__head {
  max-width: 66ch;
  margin-bottom: 28px;
}

.page-products .section__head h2 {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: .01em;
  margin: 10px 0 10px;
}

.page-products .section__head p {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
  margin: 0;
}

.page-products a {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-products .biz-hero {
  position: relative;
  border-top: var(--biz-hair);
  border-bottom: var(--biz-hair);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 229, 255, .14) 0%, transparent 58%),
    linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 100%);
  overflow: hidden;
}

.page-products .biz-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 22%, transparent 22.5%);
  opacity: .8;
}

.page-products .biz-hero__grid {
  display: grid;
  gap: 30px;
  padding: 30px 0 44px;
}

.page-products .biz-hero__copy h1 {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 12px 0 16px;
}

.page-products .biz-hero__lead {
  color: var(--ice);
  font-size: 15px;
  line-height: 1.85;
  opacity: .84;
  margin: 0;
  max-width: 60ch;
}

.page-products .biz-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .biz-hero__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--biz-deep);
  padding: 12px;
}

.page-products .biz-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 12px);
  background-size: 12px 7px;
}

.page-products .biz-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  margin: 12px 0 0;
  border: var(--biz-hair);
}

.page-products .biz-hero__stats > div {
  background: var(--biz-deep);
  padding: 12px 12px 14px;
}

.page-products .biz-hero__stats dt {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-products .biz-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
}

/* ---------- 能力总览 ---------- */

.page-products .biz-cards {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--biz-hair);
}

.page-products .biz-card {
  position: relative;
  background: var(--biz-cell);
  padding: 22px 20px 24px;
}

.page-products .biz-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 32px;
  background: var(--cyan);
}

.page-products .biz-card:nth-child(2n)::before {
  background: var(--orange);
}

.page-products .biz-card:nth-child(3n)::before {
  background: var(--mint);
}

.page-products .biz-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-products .biz-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0 0 8px;
  letter-spacing: .01em;
}

.page-products .biz-card p {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

/* ---------- 分步指南 ---------- */

.page-products .steps {
  position: relative;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--biz-hair);
}

.page-products .steps__radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.page-products .steps__tabs {
  display: flex;
  overflow-x: auto;
  background: var(--biz-deep);
  scrollbar-width: thin;
}

.page-products .steps__tab {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  font-size: 14px;
  color: var(--mist);
  cursor: pointer;
  border-right: var(--biz-hair);
  white-space: nowrap;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .steps__tab:hover {
  color: var(--ice);
}

.page-products .steps__tabno {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--violet);
}

.page-products .steps__panel {
  display: none;
  background: var(--biz-deep);
  padding: 24px 20px 26px;
  animation: biz-fade .28s var(--ease) both;
}

.page-products .steps__panel h3 {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 10px;
}

.page-products .steps__panel > p {
  color: var(--ice);
  opacity: .82;
  font-size: 14px;
  line-height: 1.85;
  margin: 0 0 14px;
}

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

.page-products .steps__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .steps__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  background: rgba(0, 229, 255, .18);
}

.page-products #step-1:checked ~ .steps__tabs label[for="step-1"],
.page-products #step-2:checked ~ .steps__tabs label[for="step-2"],
.page-products #step-3:checked ~ .steps__tabs label[for="step-3"],
.page-products #step-4:checked ~ .steps__tabs label[for="step-4"] {
  background: var(--biz-deep);
  color: var(--cyan);
  box-shadow: inset 0 -3px 0 var(--cyan);
}

.page-products #step-1:checked ~ .steps__panels #panel-1,
.page-products #step-2:checked ~ .steps__panels #panel-2,
.page-products #step-3:checked ~ .steps__panels #panel-3,
.page-products #step-4:checked ~ .steps__panels #panel-4 {
  display: block;
}

.page-products .steps__aside {
  background: var(--biz-cell);
  padding: 20px;
}

.page-products .steps__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
  border-left: 2px solid var(--orange);
  padding-left: 12px;
}

@keyframes biz-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 功能模块 ---------- */

.page-products .biz-modules__grid {
  display: grid;
  gap: 32px;
}

.page-products .hotzone {
  position: relative;
}

.page-products .biz-modules__caption {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.page-products .hotspot {
  position: absolute;
  width: 20px;
  height: 20px;
  display: block;
  cursor: help;
  outline: none;
}

.page-products .hotspot--a { left: 14%; top: 16%; }
.page-products .hotspot--b { left: 62%; top: 44%; }
.page-products .hotspot--c { left: 34%; top: 74%; }

.page-products .hotspot__dot {
  position: absolute;
  inset: 0;
  border: 2px solid var(--cyan);
  background: rgba(0, 229, 255, .22);
  box-shadow: 0 0 0 4px rgba(0, 229, 255, .12);
}

.page-products .hotspot__tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);
  width: 190px;
  background: var(--graphite);
  border: 1px solid var(--line-cyan);
  color: var(--ice);
  font-size: 12px;
  line-height: 1.6;
  padding: 8px 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s var(--ease), visibility .18s var(--ease);
  z-index: 3;
}

.page-products .hotspot:hover .hotspot__tip,
.page-products .hotspot:focus .hotspot__tip,
.page-products .hotspot:focus-visible .hotspot__tip {
  opacity: 1;
  visibility: visible;
}

.page-products .mod-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--biz-hair);
}

.page-products .mod-item {
  background: var(--biz-cell);
  padding: 18px 18px 20px;
  border-left: 3px solid transparent;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .mod-item:hover {
  border-left-color: var(--orange);
  background: var(--navy-deep);
}

.page-products .mod-item h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0 0 6px;
}

.page-products .mod-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 访问环境 ---------- */

.page-products .biz-env__grid {
  display: grid;
  gap: 26px;
}

.page-products .env-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--biz-hair);
}

.page-products .env-item {
  display: grid;
  gap: 6px;
  background: var(--biz-cell);
  padding: 14px 16px;
}

.page-products .env-item__range {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mint);
}

.page-products .env-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .biz-env__tip {
  margin: 22px 0 0;
  padding: 14px 16px;
  border: 1px solid rgba(255, 176, 32, .38);
  background: rgba(255, 176, 32, .07);
  color: var(--amber);
  font-size: 13px;
  line-height: 1.75;
}

/* ---------- 版本卡片 ---------- */

.page-products .ver-banner {
  margin-bottom: 22px;
}

.page-products .ver-track {
  display: flex;
  gap: 1px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  background: var(--line);
  border: var(--biz-hair);
  padding-bottom: 2px;
}

.page-products .ver-card {
  flex: 0 0 78%;
  min-width: 236px;
  scroll-snap-align: start;
  background: var(--biz-cell);
  padding: 20px 18px 22px;
  border-top: 3px solid var(--graphite);
}

.page-products .ver-card:first-child {
  border-top-color: var(--orange);
}

.page-products .ver-card__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-products .ver-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 12px 0 8px;
}

.page-products .ver-card__sum {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .ver-card__meta {
  margin: 0;
  display: grid;
  gap: 8px;
  border-top: var(--biz-hair);
  padding-top: 12px;
}

.page-products .ver-card__meta dt {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-products .ver-card__meta dd {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--ice);
}

.page-products .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  color: var(--mist);
}

.page-products .tag--orange {
  border-color: var(--orange);
  color: var(--orange);
}

.page-products .biz-versions__link {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 服务入口 ---------- */

.page-products .sup-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--biz-hair);
}

.page-products .sup-card {
  display: block;
  background: var(--biz-cell);
  padding: 22px 20px 24px;
  text-decoration: none;
  color: var(--white);
  transition: background-color .2s var(--ease);
}

.page-products .sup-card:hover {
  background: var(--navy-deep);
}

.page-products .sup-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-products .sup-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 10px 0 8px;
}

.page-products .sup-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .sup-card__go {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-products .biz-support__more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 图片容器统一 ---------- */

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

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-products .section {
    padding: 64px 0;
  }

  .page-products .section__head h2 {
    font-size: 28px;
  }

  .page-products .biz-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .ver-card {
    flex: 0 0 46%;
  }

  .page-products .sup-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .env-item {
    grid-template-columns: 170px 1fr;
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 960px) {
  .page-products .biz-hero__grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
    gap: 44px;
    padding: 56px 0 72px;
  }

  .page-products .biz-hero__copy h1 {
    font-size: 42px;
  }

  .page-products .biz-hero__lead {
    font-size: 16px;
  }

  .page-products .biz-hero__stats dd {
    font-size: 30px;
  }

  .page-products .steps {
    grid-template-columns: 238px minmax(0, 1fr) 280px;
  }

  .page-products .steps__tabs {
    flex-direction: column;
    overflow: visible;
  }

  .page-products .steps__tab {
    border-right: 0;
    border-bottom: var(--biz-hair);
    white-space: normal;
  }

  .page-products #step-1:checked ~ .steps__tabs label[for="step-1"],
  .page-products #step-2:checked ~ .steps__tabs label[for="step-2"],
  .page-products #step-3:checked ~ .steps__tabs label[for="step-3"],
  .page-products #step-4:checked ~ .steps__tabs label[for="step-4"] {
    box-shadow: inset 3px 0 0 var(--cyan);
  }

  .page-products .steps__panel {
    padding: 30px 28px 32px;
  }

  .page-products .biz-modules__grid {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
    align-items: start;
  }

  .page-products .biz-modules__list .section__head {
    margin-bottom: 20px;
  }

  .page-products .mod-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .biz-env__grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-products .biz-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .ver-card {
    flex: 0 0 28%;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .steps__panel {
    animation: none;
  }

  .page-products .steps__tab,
  .page-products .sup-card,
  .page-products .mod-item,
  .page-products .hotspot__tip {
    transition: none;
  }
}