.page-products {
  --prod-gap: clamp(18px, 3vw, 36px);
  --prod-pad: clamp(20px, 3.4vw, 36px);
  --prod-soft-line: rgba(31, 76, 94, 0.75);
  color: var(--text);
  padding-bottom: clamp(56px, 9vw, 110px);
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}

.page-products h1 {
  font-size: clamp(30px, 6.6vw, 60px);
  font-weight: 800;
  margin-bottom: 18px;
}

.page-products h2 {
  font-size: clamp(23px, 3.6vw, 38px);
  font-weight: 800;
  margin-bottom: 14px;
}

.page-products h3 {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  margin-bottom: 10px;
}

.page-products p {
  margin: 0 0 12px;
  color: var(--text-muted);
  line-height: 1.75;
}

.page-products a {
  color: var(--coral-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 145, 102, 0.45);
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-products a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-products .btn {
  border-bottom: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* 面包屑 */
.prod-crumb {
  padding: clamp(18px, 3vw, 28px) 0 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.prod-crumb a {
  color: var(--text-muted);
  border-bottom-color: transparent;
}

.prod-crumb a:hover {
  color: var(--coral-soft);
}

.prod-crumb .breadcrumb__sep {
  color: var(--line);
}

/* 首屏 */
.prod-hero {
  padding: clamp(26px, 5vw, 56px) 0 clamp(40px, 7vw, 88px);
  position: relative;
}

.prod-hero::before {
  content: "";
  position: absolute;
  inset: -10% 0 auto 0;
  height: 70%;
  background: radial-gradient(60% 70% at 18% 0%, rgba(242, 107, 58, 0.18), transparent 70%);
  pointer-events: none;
}

.prod-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.prod-hero__lead {
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
}

.prod-specs {
  list-style: none;
  margin: 24px 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
}

.prod-specs li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 20px;
  border-left: 1px solid var(--line);
}

.prod-specs li:first-child {
  padding-left: 0;
  border-left: 0;
}

.prod-specs__k {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.prod-specs__v {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 手机示意框 */
.prod-phone {
  margin: 0 auto;
  width: 100%;
  max-width: 320px;
  padding: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(175deg, var(--ink-700), var(--ink-800) 65%, var(--ink-900));
  position: relative;
}

.prod-phone::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(244, 247, 249, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 247, 249, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.prod-phone__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 2px 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

.prod-phone__screen {
  position: relative;
  z-index: 1;
  border: 1px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

.prod-phone__screen img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.prod-phone__cap {
  position: relative;
  z-index: 1;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* 目录双维度 */
.prod-dims {
  padding: clamp(38px, 6vw, 76px) 0;
  border-top: 1px solid var(--prod-soft-line);
}

.prod-dims__head {
  max-width: 74ch;
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.prod-dims__grid {
  display: grid;
  gap: var(--prod-gap);
}

.prod-lane {
  position: relative;
  padding: var(--prod-pad);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-900) 72%);
}

.prod-lane--alt {
  background: linear-gradient(205deg, var(--ink-700), var(--ink-900) 68%);
}

.prod-lane__no {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 12px;
}

.prod-lane p {
  font-size: 14px;
}

.prod-lane__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.prod-lane__list li {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  color: var(--text);
  padding-top: 10px;
  border-top: 1px dashed var(--prod-soft-line);
}

.prod-lane__list li .mono {
  color: var(--coral);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.prod-dims__foot {
  margin-top: clamp(22px, 3.4vw, 34px);
  max-width: 76ch;
  font-size: 14px;
  padding-left: 16px;
  border-left: 2px solid var(--mint);
}

/* 版本工作台 */
.prod-station {
  padding: clamp(38px, 6vw, 78px) 0;
  border-top: 1px solid var(--prod-soft-line);
}

.prod-station__head {
  max-width: 74ch;
  margin-bottom: clamp(22px, 3.6vw, 40px);
}

.prod-station__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.prod-versions {
  display: grid;
  gap: 12px;
}

.prod-version {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.prod-version[open] {
  background: linear-gradient(160deg, var(--ink-700), var(--ink-800) 80%);
  border-color: rgba(255, 145, 102, 0.55);
}

.prod-version summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  position: relative;
}

.prod-version summary::-webkit-details-marker {
  display: none;
}

.prod-version summary::after {
  content: "＋";
  margin-left: auto;
  color: var(--text-muted);
  font-size: 14px;
  transition: color 240ms var(--ease);
}

.prod-version[open] summary::after {
  content: "－";
  color: var(--coral);
}

.prod-version summary::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 1px;
  background: transparent;
  transition: background 240ms var(--ease);
}

.prod-version[open] summary::before {
  background: var(--coral);
}

.prod-version__k {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.prod-version__t {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.prod-version__list {
  list-style: none;
  margin: 0;
  padding: 6px 18px 18px;
  display: grid;
  gap: 9px;
}

.prod-version__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.prod-version__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--violet);
}

.prod-tip {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: rgba(232, 180, 76, 0.07);
}

.prod-tip h3 {
  font-size: 16px;
  color: var(--text);
}

.prod-tip p {
  font-size: 14px;
  margin-bottom: 0;
}

.prod-history {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.prod-history .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--violet);
  margin-right: 8px;
}

.prod-station__sub {
  font-size: clamp(18px, 2.2vw, 22px);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.prod-install {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.prod-install::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: var(--line);
}

.prod-install > li {
  position: relative;
  padding-left: 42px;
  margin-bottom: 12px;
}

.prod-step {
  border: 1px solid transparent;
  background: transparent;
  transition: background 300ms var(--ease), border-color 300ms var(--ease);
}

.prod-step[open] {
  border-color: var(--line);
  background: var(--ink-800);
}

.prod-step summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
}

.prod-step summary::-webkit-details-marker {
  display: none;
}

.prod-step__no {
  position: absolute;
  left: -42px;
  top: 10px;
  width: 31px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-900);
  background: var(--coral);
  padding: 2px 0;
}

.prod-step__t {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.prod-step p {
  margin: 0;
  padding: 0 12px 14px;
  font-size: 14px;
}

.prod-station__shot {
  margin: 22px 0 0;
  border: 1px solid var(--line);
}

.prod-station__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.prod-station__shot figcaption {
  padding: 12px 14px;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
}

/* 设备要求 */
.prod-req-band {
  padding: clamp(26px, 4vw, 44px) 0;
  border-top: 1px solid var(--prod-soft-line);
  border-bottom: 1px solid var(--prod-soft-line);
  background: linear-gradient(120deg, rgba(18, 48, 63, 0.65), rgba(5, 16, 26, 0.2) 75%);
}

.prod-req {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.prod-req__item {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.prod-req__k {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 6px;
}

.prod-req__v {
  font-size: 13px;
  margin-bottom: 0;
}

.prod-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.prod-check li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
}

.prod-check__box {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  border: 1px solid var(--mint);
  position: relative;
  background: rgba(63, 240, 192, 0.1);
}

.prod-check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(40deg);
}

/* 详情页三卡 */
.prod-detail {
  padding: clamp(40px, 6.5vw, 82px) 0;
}

.prod-detail__head {
  max-width: 70ch;
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.prod-cards {
  display: grid;
  gap: var(--prod-gap);
  align-items: start;
}

.prod-card {
  padding: var(--prod-pad);
  border: 1px solid var(--line);
  background: var(--ink-800);
  position: relative;
}

.prod-card p {
  font-size: 14px;
  margin-bottom: 0;
}

.prod-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--violet);
  margin-bottom: 14px;
}

.prod-card--venue {
  background: linear-gradient(190deg, var(--ink-700), var(--ink-800) 75%);
}

.prod-card__media {
  margin: -14px 0 20px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.prod-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.8);
}

.prod-card--time {
  border-color: rgba(232, 180, 76, 0.5);
  background: linear-gradient(200deg, rgba(232, 180, 76, 0.12), var(--ink-900) 70%);
}

.prod-card__clock {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: 0.04em;
  color: var(--amber);
  line-height: 1.2;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(232, 180, 76, 0.3);
}

/* 提醒与收尾 */
.prod-notes {
  padding: 0 0 clamp(20px, 4vw, 40px);
}

.prod-banner {
  margin: 0 0 clamp(30px, 5vw, 56px);
  border: 1px solid var(--line);
  overflow: hidden;
}

.prod-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.9);
}

.prod-notes__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.prod-notes__main h2 {
  margin-bottom: 22px;
}

.prod-faq {
  border-bottom: 1px solid var(--prod-soft-line);
}

.prod-faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 30px 16px 0;
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: color 240ms var(--ease);
}

.prod-faq summary::-webkit-details-marker {
  display: none;
}

.prod-faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 14px;
  font-family: var(--font-mono);
  color: var(--coral);
  transition: transform 300ms var(--ease);
}

.prod-faq[open] summary {
  color: var(--coral-soft);
}

.prod-faq[open] summary::after {
  content: "−";
}

.prod-faq p {
  font-size: 14px;
  padding: 0 0 18px;
  margin: 0;
  max-width: 62ch;
}

.prod-notes__side {
  border: 1px solid var(--line);
  border-top: 3px solid var(--coral);
  padding: var(--prod-pad);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
}

.prod-notes__side h3 {
  font-size: 17px;
  margin-bottom: 14px;
}

.prod-notes__side p {
  font-size: 14px;
}

.prod-notes__meta {
  padding-top: 12px;
  border-top: 1px dashed var(--prod-soft-line);
  font-size: 13px;
}

.prod-notes__side .btn {
  margin-top: 8px;
}

.page-products #install,
.page-products #version,
.page-products #catalog,
.page-products #detail,
.page-products #notes {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

@media (min-width: 720px) {
  .prod-dims__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .prod-lane--alt {
    margin-top: 28px;
  }

  .prod-req {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .prod-check {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-top: 18px;
    border-top: 1px solid var(--prod-soft-line);
  }

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

  .prod-card--time {
    grid-column: span 2;
  }
}

@media (min-width: 960px) {
  .prod-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: center;
  }

  .prod-phone {
    max-width: 100%;
  }

  .prod-station__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

  .prod-cards {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.04fr) minmax(0, 1.04fr);
  }

  .prod-card--time {
    grid-column: auto;
    margin-top: 34px;
  }

  .prod-card--venue {
    margin-top: -18px;
  }

  .prod-notes__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .prod-notes__side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1180px) {
  .prod-dims__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
  }

  .prod-check {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition: none !important;
    animation: none !important;
  }
}