.page-products {
  background: var(--night);
  color: var(--white);
  overflow-x: hidden;
}

.page-products .breadcrumb {
  padding-top: 24px;
}

/* ===== 首屏 hero ===== */
.page-products__hero {
  padding-top: 36px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products__hero-grid {
  display: grid;
  gap: 40px;
}

.page-products__hero-copy::before {
  content: "";
  display: block;
  width: 84px;
  height: 4px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--blue), var(--green), transparent);
}

.page-products__hero-copy .page-title {
  margin: 16px 0 20px;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-products__hero-copy .lead {
  max-width: 60ch;
  color: var(--gray);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-products__hero-panel {
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px;
  border-left: 3px solid var(--blue);
}

.page-products__hero-panel .data-panel {
  margin: 0;
}

.page-products__hero-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.page-products__hero-row .data-label {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.page-products__hero-row .data-value {
  font-family: var(--font-data);
  font-size: 1rem;
  color: var(--green);
  font-weight: 600;
}

.page-products__toc {
  margin-top: 40px;
}

.page-products__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.page-products__toc-list li {
  background: var(--night);
}

.page-products__toc-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 18px;
  color: var(--white);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-products__toc-list a span {
  font-family: var(--font-data);
  color: var(--blue);
  font-size: 0.78rem;
}

.page-products__toc-list a:hover,
.page-products__toc-list a:focus-visible {
  background: var(--trans-blue);
  color: var(--blue);
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

/* ===== 下载中心 ===== */
.page-products__download {
  padding: 64px 0;
  background: linear-gradient(120deg, rgba(0, 200, 255, 0.07), transparent 45%),
    var(--night);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products .section__header {
  margin-bottom: 36px;
  padding-left: 16px;
  border-left: 3px solid var(--blue);
}

.page-products .section__meta {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--gray);
  text-transform: uppercase;
}

.page-products .section__title {
  margin: 10px 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.2;
}

.page-products .section__desc {
  margin: 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 68ch;
}

.page-products__download-banner {
  margin: 24px 0 40px;
  border-radius: 2px;
  overflow: hidden;
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-products__download-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__platform-grid {
  display: grid;
  gap: 20px;
}

.page-products__platform-card {
  position: relative;
  padding: 28px 24px 30px;
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--blue);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-products__platform-card--ios {
  border-left-color: var(--blue);
}

.page-products__platform-card--android {
  border-left-color: var(--green);
}

.page-products__platform-card--web {
  border-left-color: var(--gold);
}

.page-products__platform-card:hover {
  transform: translateY(-4px);
  background: linear-gradient(135deg, var(--deep), rgba(0, 200, 255, 0.08));
}

.page-products__platform-card--android:hover {
  background: linear-gradient(135deg, var(--deep), rgba(57, 255, 20, 0.07));
}

.page-products__platform-card--web:hover {
  background: linear-gradient(135deg, var(--deep), rgba(255, 215, 0, 0.07));
}

.page-products__platform-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.page-products__platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--green);
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.25);
}

.page-products__platform-card--web .page-products__platform-icon {
  color: var(--gold);
  background: rgba(255, 215, 0, 0.08);
  border-color: rgba(255, 215, 0, 0.25);
}

.page-products__platform-card .card__title {
  margin: 0 0 14px;
  font-size: 1.4rem;
  line-height: 1.3;
}

.page-products__platform-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.page-products__platform-list li {
  padding: 7px 0;
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--gray);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.page-products__platform-list li::before {
  content: "// ";
  color: var(--blue);
  font-family: var(--font-data);
}

.page-products__platform-card--android .page-products__platform-list li::before {
  color: var(--green);
}

.page-products__platform-card--web .page-products__platform-list li::before {
  color: var(--gold);
}

.page-products__platform-note {
  margin: 0 0 22px;
  color: var(--gray);
  font-size: 0.85rem;
  line-height: 1.7;
}

.page-products__platform-card .btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.page-products__platform-card .btn--primary {
  background: var(--red);
  border-color: var(--red);
  color: #ffffff;
}

.page-products__platform-card .btn--primary:hover,
.page-products__platform-card .btn--primary:focus-visible {
  background: #e64500;
  border-color: #e64500;
  outline: 2px solid rgba(255, 77, 0, 0.4);
  outline-offset: 2px;
}

/* ===== 安装指南 ===== */
.page-products__install {
  padding: 64px 0;
  background: linear-gradient(180deg, var(--night), rgba(19, 26, 42, 0.7), var(--night));
}

.page-products__install-grid {
  display: grid;
  gap: 40px;
  margin-top: 40px;
}

.page-products__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products__step {
  position: relative;
  padding: 24px 48px 32px 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.page-products__step::before {
  counter-increment: step-counter;
  content: counter(step-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 24px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--blue);
  border: 1px solid var(--blue);
  background: rgba(0, 200, 255, 0.08);
}

.page-products__steps {
  counter-reset: step-counter;
}

.page-products__step-num {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--green);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.page-products__step h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  line-height: 1.4;
}

.page-products__step p {
  margin: 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 52ch;
}

.page-products__step-arrow {
  position: absolute;
  right: 16px;
  bottom: 28px;
  color: var(--blue);
  opacity: 0.55;
}

.page-products__step:last-child .page-products__step-arrow {
  display: none;
}

.page-products__install-figure {
  margin: 0;
}

.page-products__install-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 2px;
}

/* ===== 功能模块 ===== */
.page-products__features {
  padding: 64px 0;
  background: linear-gradient(180deg, var(--deep), var(--night) 130%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products__feature-grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.page-products__feature-card {
  position: relative;
  padding: 28px 24px 30px 56px;
  background: var(--night);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-right: 3px solid var(--green);
  transform: skewX(-1deg);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-products__feature-card:hover,
.page-products__feature-card:focus-within {
  transform: translateY(-4px) skewX(-1deg);
  border-color: var(--green);
  background: rgba(57, 255, 20, 0.05);
}

.page-products__feature-num {
  position: absolute;
  left: 16px;
  top: 28px;
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--green);
  writing-mode: vertical-rl;
  opacity: 0.8;
}

.page-products__feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.4;
}

.page-products__feature-card p {
  margin: 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 46ch;
}

.page-products__feature-icon {
  position: absolute;
  right: 20px;
  bottom: 22px;
  color: var(--green);
  opacity: 0.7;
}

.page-products__feature-visuals {
  display: grid;
  gap: 20px;
  margin: 40px 0 0;
}

.page-products__feature-figure {
  margin: 0;
  padding: 8px 8px 12px;
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-products__feature-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__feature-figure figcaption {
  margin-top: 10px;
  padding-left: 6px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--gray);
}

.page-products__feature-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  padding: 22px 24px;
  background: var(--deep);
  border-left: 3px solid var(--red);
}

.page-products__feature-note p {
  margin: 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 58ch;
}

/* ===== 版本更新 ===== */
.page-products__changelog {
  padding: 64px 0;
}

.page-products__changelog-grid {
  display: grid;
  gap: 40px;
  margin-top: 40px;
}

.page-products__timeline {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 22px;
  border-left: 2px solid rgba(0, 200, 255, 0.3);
}

.page-products__timeline-item {
  position: relative;
  padding: 0 0 32px 14px;
}

.page-products__timeline-item:last-child {
  padding-bottom: 0;
}

.page-products__timeline-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  border: 2px solid var(--night);
  box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.3);
}

.page-products__timeline-version {
  font-family: var(--font-data);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--blue);
}

.page-products__timeline-tag {
  display: inline-block;
  margin-left: 12px;
  padding: 2px 10px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--night);
  background: var(--gold);
  vertical-align: middle;
  text-transform: uppercase;
}

.page-products__timeline-item p {
  margin: 10px 0 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 50ch;
}

.page-products__changelog-figure {
  margin: 0;
}

.page-products__changelog-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 2px;
}

/* ===== 支持条 ===== */
.page-products__support {
  padding: 20px 0 72px;
}

.page-products__support-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px 24px;
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--blue);
}

.page-products__support-copy p {
  margin: 0;
  color: var(--gray);
  line-height: 1.7;
  max-width: 62ch;
}

.page-products__support-mail {
  color: var(--blue);
  font-family: var(--font-data);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid var(--blue);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-products__support-mail:hover,
.page-products__support-mail:focus-visible {
  color: var(--green);
  border-color: var(--green);
  outline: none;
}

.page-products__support-mail.is-copied {
  color: var(--green);
  border-color: var(--green);
}

.page-products__support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 960px) {
  .page-products__hero {
    padding-top: 64px;
    padding-bottom: 56px;
  }

  .page-products__hero-grid {
    grid-template-columns: 1.35fr 0.75fr;
    gap: 56px;
    align-items: end;
  }

  .page-products__hero-panel {
    padding: 28px;
  }

  .page-products__toc {
    margin-top: 56px;
  }

  .page-products__toc-list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products__toc-list a {
    padding: 18px 24px;
  }

  .page-products__download,
  .page-products__install,
  .page-products__features,
  .page-products__changelog {
    padding: 88px 0;
  }

  .page-products__platform-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-products__platform-card {
    padding: 32px 28px 34px;
  }

  .page-products__install-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
    align-items: start;
  }

  .page-products__install-figure {
    position: sticky;
    top: 96px;
  }

  .page-products__feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .page-products__feature-visuals {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin-top: 48px;
  }

  .page-products__changelog-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 64px;
    align-items: start;
  }

  .page-products__changelog-figure {
    position: sticky;
    top: 96px;
  }

  .page-products__support-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 32px 36px;
  }
}