.page-products {
  --green-soft: #EAF7F0;
  --orange-soft: #FFF3E6;
  --blue-soft: #EAF0F6;
  --card-cut: 18px;
  --section-pad: 72px;
  overflow-x: clip;
}

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

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

/* ========== 下载入口 ========== */
.page-products .download-hero {
  position: relative;
  display: grid;
  align-items: center;
  gap: 40px;
  padding: 32px 0 56px;
}

.page-products .download-hero__copy {
  position: relative;
  z-index: 1;
}

.page-products .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--green);
  background: var(--green-soft);
  padding: 8px 16px;
  border-radius: 999px;
}

.page-products .hero-kicker__num {
  font-family: var(--accent-font);
  font-size: 18px;
  font-weight: 700;
  color: var(--orange);
}

.page-products .download-hero h1 {
  margin: 20px 0 16px;
  font-family: var(--heading-font);
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.05;
  font-weight: 900;
  color: var(--text-main);
}

.page-products .h1-extra {
  display: block;
  color: var(--green);
  font-size: 0.72em;
  line-height: 1.15;
  margin-top: 6px;
}

.page-products .hero-desc {
  max-width: 34em;
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.7;
}

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

.page-products .btn-download,
.page-products .btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 10px;
  font-family: var(--heading-font);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
  transition: transform var(--transition-standard), box-shadow var(--transition-standard);
}

.page-products .btn-download {
  background: var(--orange);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(255, 140, 0, 0.35);
  animation: liaoqiu-btn-pulse 2.4s infinite;
}

.page-products .btn-download:hover,
.page-products .btn-download:focus-visible {
  transform: translateY(-2px);
}

.page-products .btn-outline {
  border: 2px solid var(--green);
  color: var(--green);
  background: #ffffff;
}

.page-products .btn-outline:hover,
.page-products .btn-outline:focus-visible {
  background: var(--green-soft);
}

@keyframes liaoqiu-btn-pulse {
  0%, 100% {
    box-shadow: 0 10px 24px rgba(255, 140, 0, 0.35);
  }
  50% {
    box-shadow: 0 10px 40px rgba(255, 140, 0, 0.55);
  }
}

.page-products .hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-sub);
}

.page-products .download-hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.page-products .phone-stage {
  position: relative;
  width: min(300px, 100%);
  margin: 0;
  background: linear-gradient(145deg, var(--deep-blue), #14243A);
  border-radius: 28px;
  padding: 12px;
  box-shadow: 0 30px 50px rgba(30, 63, 102, 0.25);
  transform: rotate(2deg);
}

.page-products .phone-stage::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 999px;
  z-index: 2;
}

.page-products .phone-stage__img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 2;
  object-fit: cover;
  border-radius: 20px;
}

.page-products .phone-stage__ring {
  position: absolute;
  top: -24px;
  right: -14px;
  width: 120px;
  height: 120px;
  border: 3px dashed var(--orange);
  border-radius: 50%;
  pointer-events: none;
  animation: liaoqiu-float 5s ease-in-out infinite;
}

@keyframes liaoqiu-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ========== 下载方式 ========== */
.page-products .download-cards {
  padding: 0 0 64px;
}

.page-products .section-heading {
  margin-bottom: 28px;
}

.page-products .section-index {
  font-family: var(--accent-font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 8px;
}

.page-products .section-heading h2 {
  font-family: var(--heading-font);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.1;
  margin: 0;
  color: var(--text-main);
}

.page-products .download-cards__grid {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .scan-card {
  background: var(--card-white);
  border-radius: var(--radius-cut);
  padding: 32px 28px;
  border-left: 6px solid var(--green);
  box-shadow: 0 12px 30px rgba(22, 33, 45, 0.06);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-products .scan-card h3,
.page-products .direct-card h3 {
  font-family: var(--heading-font);
  font-size: 22px;
  font-weight: 900;
  margin: 0 0 10px;
  color: var(--text-main);
}

.page-products .scan-card p,
.page-products .direct-card p {
  margin: 0;
  color: var(--text-sub);
  line-height: 1.7;
  font-size: 15px;
}

.page-products .scan-card__qr {
  width: 180px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  margin: 20px 0 12px;
  background: var(--light-gray);
}

.page-products .scan-card__note {
  font-size: 13px;
  color: var(--text-sub);
}

.page-products .direct-card {
  background: var(--green-soft);
  border-radius: var(--radius-cut);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 30px rgba(22, 33, 45, 0.05);
}

.page-products .download-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--green);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 2px;
}

.page-products .download-link:hover,
.page-products .download-link:focus-visible {
  color: var(--deep-blue);
}

.page-products .direct-card__meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--text-sub);
}

.page-products .direct-card__meta li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--orange);
  margin-right: 10px;
  transform: skewX(-20deg);
}

/* ========== 版本特性 ========== */
.page-products .features-section {
  position: relative;
  background: linear-gradient(135deg, var(--deep-blue) 0%, #172B44 100%);
  padding: 64px 0;
  color: #EAF0F6;
  overflow: hidden;
}

.page-products .features-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.025) 0 2px, transparent 2px 26px);
  pointer-events: none;
}

.page-products .features-section__inner {
  position: relative;
  z-index: 1;
}

.page-products .features-section .section-heading h2 {
  color: #ffffff;
}

.page-products .features-section .section-heading p:not(.section-index) {
  color: #C9D6E3;
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
}

.page-products .features-layout {
  display: grid;
  gap: 40px;
  margin-top: 32px;
}

.page-products .skill-tree {
  position: relative;
}

.page-products .skill-tree__line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.25;
  pointer-events: none;
}

.page-products .skill-tree__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .skill-node details {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  overflow: hidden;
  transition: background var(--transition-standard), border-color var(--transition-standard);
}

.page-products .skill-node details[open] {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.24);
  box-shadow: inset 4px 0 0 var(--green);
}

.page-products .skill-node summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--heading-font);
  font-size: 18px;
  font-weight: 800;
  color: #ffffff;
  border-radius: 14px;
}

.page-products .skill-node summary::-webkit-details-marker {
  display: none;
}

.page-products .skill-node summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--accent-font);
  font-size: 26px;
  font-weight: 700;
  color: var(--orange);
  transition: transform 0.3s;
}

.page-products .skill-node details[open] summary::after {
  content: "–";
  transform: rotate(180deg);
}

.page-products .node-index {
  color: var(--orange);
  font-family: var(--accent-font);
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.page-products .node-title {
  line-height: 1.25;
}

.page-products .node-body {
  padding: 0 20px 22px 20px;
  color: #C9D6E3;
  font-size: 15px;
  line-height: 1.7;
}

.page-products .node-body p {
  margin: 0 0 10px;
}

.page-products .node-body__img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 10px;
  margin-top: 12px;
}

.page-products .features-visual {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-products .heatmap-card {
  margin: 0;
  border-radius: var(--radius-cut);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.page-products .heatmap-card__img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-products .features-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-products .features-stats p {
  margin: 0;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 16px 10px;
  text-align: center;
}

.page-products .features-stats strong {
  display: block;
  font-family: var(--heading-font);
  font-size: 28px;
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
}

.page-products .features-stats span {
  display: block;
  font-size: 12px;
  color: #AFC3D4;
  margin-top: 8px;
}

/* ========== 系统要求 ========== */
.page-products .system-requirements {
  padding: 64px 0 40px;
}

.page-products .requirements-grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-products .requirement-card {
  background: var(--card-white);
  border-radius: var(--radius-cut);
  padding: 28px 24px;
  box-shadow: 0 8px 24px rgba(22, 33, 45, 0.05);
  border-top: 5px solid var(--green);
  position: relative;
  overflow: hidden;
}

.page-products .requirement-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: -20px;
  width: 60px;
  height: 100%;
  background: repeating-linear-gradient(-45deg, var(--green-soft) 0 8px, transparent 8px 16px);
  opacity: 0.5;
}

.page-products .requirement-card h3 {
  font-family: var(--heading-font);
  font-size: 22px;
  font-weight: 900;
  margin: 0 0 14px;
  color: var(--text-main);
}

.page-products .requirement-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 15px;
  color: var(--text-sub);
}

.page-products .requirement-card li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 10px;
  vertical-align: middle;
}

.page-products .requirement-note {
  background: var(--deep-blue);
  border-radius: var(--radius-cut);
  color: #D7E3EE;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  font-size: 15px;
  line-height: 1.7;
  box-shadow: 0 8px 24px rgba(30, 63, 102, 0.2);
}

.page-products .requirement-note p {
  margin: 0;
}

/* ========== 安装指南 ========== */
.page-products .install-guide {
  padding: 40px 0 64px;
}

.page-products .install-steps {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-products .step-card {
  background: var(--card-white);
  border-radius: var(--radius-cut);
  padding: 28px 22px;
  border: 1px solid var(--border-line);
  position: relative;
  box-shadow: 0 8px 24px rgba(22, 33, 45, 0.04);
}

.page-products .step-card__num {
  font-family: var(--accent-font);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  display: block;
  margin-bottom: 12px;
}

.page-products .step-card h3 {
  font-family: var(--heading-font);
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--text-main);
}

.page-products .step-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-sub);
}

.page-products .install-guide__visual {
  margin: 24px 0 0;
  border-radius: var(--radius-cut);
  overflow: hidden;
  border: 6px solid #ffffff;
  box-shadow: 0 16px 36px rgba(22, 33, 45, 0.1);
}

.page-products .install-guide__visual img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ========== 新用户福利 ========== */
.page-products .welfare-section {
  background: linear-gradient(135deg, var(--green) 0%, var(--deep-blue) 100%);
  padding: 64px 0;
  color: #ffffff;
}

.page-products .welfare-section__inner {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-products .welfare-copy .section-index {
  color: rgba(255, 255, 255, 0.8);
}

.page-products .welfare-copy h2 {
  font-family: var(--heading-font);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  margin: 0 0 16px;
  color: #ffffff;
}

.page-products .welfare-copy p {
  color: #E2F0E9;
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
}

.page-products .welfare-list {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: grid;
  gap: 12px;
  font-size: 15px;
  color: #EAF6F0;
}

.page-products .welfare-list li {
  padding-left: 28px;
  position: relative;
}

.page-products .welfare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 14px;
  height: 3px;
  background: var(--orange);
  transform: skewX(-20deg);
}

.page-products .welfare-visual {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  border: 8px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 24px 40px rgba(22, 33, 45, 0.25);
  transform: rotate(-1.5deg);
}

.page-products .welfare-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ========== 帮助与联系 ========== */
.page-products .help-links {
  display: grid;
  gap: 16px;
  padding: 48px 0 64px;
}

.page-products .help-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 88px;
  background: var(--card-white);
  border-radius: var(--radius-cut);
  padding: 20px 28px;
  font-family: var(--heading-font);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(22, 33, 45, 0.05);
  border-left: 6px solid var(--green);
  transition: transform var(--transition-standard), border-color var(--transition-standard);
}

.page-products .help-card:hover,
.page-products .help-card:focus-visible {
  transform: translateY(-3px);
  border-left-color: var(--orange);
}

/* ========== 响应式布局 ========== */
@media (min-width: 760px) {
  .page-products .download-cards__grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

@media (min-width: 900px) {
  .page-products .welfare-section__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 56px;
  }

  .page-products .help-links {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .page-products .download-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 64px;
    padding: 48px 0 80px;
  }

  .page-products .features-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 56px;
  }

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