/* 应用下载页 /app-download/ 页面专属样式 */

.page-products {
  --page-gutter: 1.25rem;
}

/* ===== 面包屑 ===== */
.page-products .breadcrumb {
  max-width: var(--container-w);
  margin-inline: auto;
  padding: 1.5rem var(--page-gutter) 0;
}
.page-products .breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem 0.5rem;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--gray-500);
}
.page-products .breadcrumb__list a {
  color: inherit;
  text-decoration: none;
  transition: color 200ms ease;
}
.page-products .breadcrumb__list a:hover {
  color: var(--brand);
}
.page-products .breadcrumb__sep {
  color: var(--brand);
  font-family: var(--font-mono);
}
.page-products .breadcrumb__list [aria-current="page"] {
  color: var(--gray-800);
  font-weight: 500;
}

/* ===== 章节标题布局 ===== */
.page-products .section-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2.25rem;
}
.page-products .section-index {
  display: block;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--brand);
}
.page-products .section-head__body h2 {
  font-family: var(--font-serif);
  font-size: var(--fs-section);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.5rem;
  color: var(--ink);
}
.page-products .section-head__body .section-intro {
  margin: 0;
  max-width: 42em;
  color: var(--gray-500);
  font-size: var(--fs-small);
  line-height: 1.7;
}
.page-products .product-pricing .section-index {
  color: var(--gold);
}
.page-products .product-pricing .section-head__body h2,
.page-products .product-pricing .section-head__body .section-intro {
  color: var(--paper);
}

/* ===== 01 应用概览 ===== */
.page-products .product-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(211, 47, 47, 0.28), transparent 42%),
    linear-gradient(135deg, var(--ink) 0%, var(--gray-800) 100%);
  color: var(--paper);
}
.page-products .product-hero::before {
  content: "";
  position: absolute;
  top: -84px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: var(--brand);
  clip-path: polygon(100% 0, 100% 100%, 0 100%, 18% 0);
  opacity: 0.55;
  pointer-events: none;
}
.page-products .product-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--brand) 0 28px,
    var(--gold) 28px 44px,
    transparent 44px 66px
  );
  pointer-events: none;
}
.page-products .product-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  padding-block: 3rem 4rem;
}
.page-products .product-hero__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.125rem;
}
.page-products .product-hero h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.14;
  max-width: 12em;
  margin: 0 0 1rem;
  color: var(--white);
}
.page-products .product-hero__lead {
  max-width: 38em;
  margin: 0 0 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(245, 245, 240, 0.86);
}
.page-products .product-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.page-products .btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--brand);
  color: var(--white);
  border-radius: 0;
  clip-path: polygon(
    0 0,
    calc(100% - 12px) 0,
    100% 12px,
    100% 100%,
    12px 100%,
    0 calc(100% - 12px)
  );
  font-weight: 700;
  font-size: 1.0625rem;
  border: 0;
  transition: background 200ms ease, transform 200ms ease;
}
.page-products .btn-download:hover {
  background: var(--deep-red);
  transform: translateY(-2px);
}
.page-products .btn-download svg {
  width: 20px;
  height: 20px;
}
.page-products .product-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid rgba(245, 245, 240, 0.2);
}
.page-products .product-hero__facts li {
  display: grid;
  gap: 0.125rem;
}
.page-products .product-hero__facts strong {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: 700;
  color: var(--gold);
}
.page-products .product-hero__facts span {
  font-size: var(--fs-small);
  color: rgba(245, 245, 240, 0.64);
  white-space: nowrap;
}
.page-products .product-hero__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.875rem;
}
.page-products .phone-frame {
  width: min(100%, 320px);
  padding: 10px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(145deg, #202020, var(--ink));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.52);
  transform: rotate(2deg);
}
.page-products .phone-frame__img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  object-fit: cover;
  background: var(--gray-800);
}
.page-products .product-hero__visual-note {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(245, 245, 240, 0.5);
}

/* ===== 02 下载方式 ===== */
.page-products .download-cards {
  margin-bottom: 1.5rem;
}
.page-products .download-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 2rem 1.5rem;
}
.page-products .download-card > .btn {
  margin-top: auto;
}
.page-products .download-card h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-card);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
  color: var(--ink);
}
.page-products .download-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--gray-500);
  margin-bottom: 1rem;
}
.page-products .download-card--dark {
  background: var(--ink);
  border-color: rgba(255, 255, 255, 0.08);
}
.page-products .download-card--dark h3 {
  color: var(--paper);
}
.page-products .download-card--dark p {
  color: rgba(245, 245, 240, 0.72);
}
.page-products .download-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-products .download-card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--sand);
}
.page-products .download-card__icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--brand);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.page-products .download-card--dark .download-card__icon {
  background: rgba(255, 255, 255, 0.08);
}
.page-products .download-card--dark .download-card__icon svg {
  stroke: var(--gold);
}
.page-products .download-card__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.625rem;
}
.page-products .download-card__list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink);
}
.page-products .download-card--dark .download-card__list li {
  color: var(--paper);
}
.page-products .download-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  background: var(--brand);
}
.page-products .download-card--dark .download-card__list li::before {
  background: var(--gold);
}
.page-products .download-notice {
  display: flex;
  gap: 0.625rem;
  align-items: flex-start;
  margin: 0;
  padding: 0.875rem 1rem;
  border-left: 3px solid var(--gold);
  background: var(--sand);
  color: var(--gray-800);
  font-size: var(--fs-small);
  line-height: 1.7;
}
.page-products .download-notice svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  stroke: var(--gold);
}

/* ===== 03 功能矩阵 ===== */
.page-products .feature-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.page-products .feature-card {
  position: relative;
  padding: 1.75rem;
  background: var(--white);
  border: 1px solid rgba(10, 10, 10, 0.08);
  clip-path: polygon(
    0 0,
    calc(100% - 14px) 0,
    100% 14px,
    100% 100%,
    14px 100%,
    0 calc(100% - 14px)
  );
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.page-products .feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(10, 10, 10, 0.12);
}
.page-products .feature-card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1rem;
  overflow: hidden;
  border: 1px solid var(--sand);
  border-radius: 12px;
  display: grid;
  place-items: center;
}
.page-products .feature-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.page-products .feature-card h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-card);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--ink);
}
.page-products .feature-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--gray-500);
}
.page-products .feature-note {
  margin: 0 0 2.5rem;
  background: var(--white);
  border: 1px solid rgba(10, 10, 10, 0.1);
  padding: 0 1.25rem;
}
.page-products .feature-note summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
  list-style: none;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--ink);
}
.page-products .feature-note summary::-webkit-details-marker {
  display: none;
}
.page-products .feature-note summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--brand);
}
.page-products .feature-note[open] summary::after {
  content: "−";
}
.page-products .feature-note__body {
  padding-bottom: 1rem;
  color: var(--gray-500);
  font-size: 0.9375rem;
  line-height: 1.7;
}
.page-products .feature-note__body p {
  margin: 0;
}
.page-products .feature-local {
  display: grid;
  gap: 1.5rem;
  padding: 1.25rem;
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.1);
  clip-path: polygon(
    0 0,
    calc(100% - 18px) 0,
    100% 18px,
    100% 100%,
    0 100%,
    0 0
  );
}
.page-products .feature-local__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
}
.page-products .feature-local__body {
  padding: 0.5rem 0.5rem 0.75rem;
}
.page-products .feature-local__body h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0.625rem 0;
  color: var(--paper);
}
.page-products .feature-local__body p {
  margin: 0 0 1rem;
  color: rgba(245, 245, 240, 0.8);
  line-height: 1.75;
}

/* ===== 04 订阅方案 ===== */
.page-products .pricing-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.page-products .pricing-card {
  position: relative;
  padding: 2rem 1.5rem;
  background: rgba(245, 245, 240, 0.06);
  border: 1px solid rgba(245, 245, 240, 0.12);
  color: var(--paper);
}
.page-products .pricing-card h3 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--paper);
}
.page-products .pricing-card__desc {
  margin: 0 0 1.25rem;
  color: rgba(245, 245, 240, 0.72);
  font-size: 0.9375rem;
}
.page-products .pricing-card__list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.625rem;
}
.page-products .pricing-card__list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(245, 245, 240, 0.9);
}
.page-products .pricing-card__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--gold);
}
.page-products .pricing-card--pro {
  background: linear-gradient(145deg, var(--deep-red), var(--ink) 82%);
  border-color: var(--brand);
}
.page-products .pricing-card--pro .pricing-card__list li::before {
  color: var(--white);
}
.page-products .pricing-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.625rem;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.page-products .pricing-card--pro .btn-primary {
  background: var(--white);
  color: var(--ink);
}
.page-products .pricing-card--pro .btn-primary:hover {
  background: var(--gold);
  color: var(--ink);
}
.page-products .pricing-note img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
}

/* ===== 05 注册流程 ===== */
.page-products .register-steps {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.page-products .register-step {
  position: relative;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid rgba(10, 10, 10, 0.08);
  clip-path: polygon(
    0 0,
    calc(100% - 14px) 0,
    100% 14px,
    100% 100%,
    0 100%,
    0 0
  );
}
.page-products .register-step__num {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--brand);
}
.page-products .register-step h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-card);
  font-weight: 900;
  margin: 0 0 0.5rem;
  color: var(--ink);
}
.page-products .register-step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--gray-500);
}
.page-products .register-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}
.page-products .register-help {
  margin: 0;
  color: var(--gray-500);
  font-size: var(--fs-small);
  line-height: 1.7;
}
.page-products .register-help a {
  color: var(--brand);
  font-weight: 500;
  text-decoration: none;
}
.page-products .register-help a:hover {
  text-decoration: underline;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-products .product-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }
  .page-products .download-cards {
    align-items: stretch;
  }
  .page-products .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .feature-local {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 1.5rem;
  }
  .page-products .pricing-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }
  .page-products .register-steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-products .product-hero__grid {
    gap: 4rem;
  }
  .page-products .product-hero__facts {
    gap: 2.5rem;
  }
  .page-products .pricing-card {
    padding: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .btn-download,
  .page-products .feature-card {
    transition: none;
    transform: none;
  }
}