.page-products {
  --ps-gap: clamp(20px, 3vw, 32px);
  --ps-pad-top: clamp(18px, 4vw, 36px);
  padding-top: var(--ps-pad-top);
  padding-bottom: clamp(56px, 8vw, 110px);
  background:
    radial-gradient(circle at 14% 2%, rgba(140, 29, 44, .20), transparent 44%),
    radial-gradient(circle at 86% 10%, rgba(46, 143, 130, .10), transparent 40%);
  color: var(--porcelain);
}

.page-products .crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-products .crumb a {
  color: var(--stone);
  text-decoration: none;
}

.page-products .crumb a:hover,
.page-products .crumb a:focus-visible {
  color: var(--gold-light);
}

.page-products .crumb__sep {
  margin: 0 8px;
  color: rgba(201, 162, 39, .6);
}

.page-products .section {
  padding-top: clamp(48px, 7vw, 92px);
}

.page-products .section--tight {
  padding-top: clamp(40px, 5vw, 64px);
}

.page-products .section-head {
  max-width: 74ch;
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

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

.page-products .section-head__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.22;
  letter-spacing: .02em;
  color: var(--porcelain);
  margin: 0 0 12px;
}

.page-products .section-head__desc {
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
}

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

.page-products .lead {
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.9;
  color: var(--porcelain);
  margin: 0 0 26px;
  max-width: 34em;
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  padding-top: clamp(20px, 3.5vw, 44px);
}

.page-products .hero__grid {
  display: grid;
  gap: var(--ps-gap);
  align-items: end;
}

.page-products .hero__lead h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--porcelain);
  margin: 0 0 20px;
  max-width: 18em;
  text-shadow: 0 10px 34px rgba(78, 15, 25, .55);
}

.page-products .hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-products .figure__frame {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--line-gold);
  background: var(--ink-2);
  box-shadow: 0 20px 44px rgba(78, 15, 25, .42);
}

.page-products .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-products .hero__figure .figure__frame {
  box-shadow: inset 0 0 0 1px rgba(140, 131, 122, .25), 0 24px 56px rgba(78, 15, 25, .5);
}

/* ---------- 版本选择 ---------- */
.page-products .pick {
  position: relative;
  display: grid;
  border: 2px solid var(--line-gold);
  box-shadow: 0 22px 50px rgba(78, 15, 25, .38);
}

.page-products .pick__col {
  position: relative;
  padding: clamp(24px, 3.4vw, 38px);
}

.page-products .pick__col--v4 {
  background: linear-gradient(155deg, var(--ink-2), var(--ink));
}

.page-products .pick__col--cn {
  background: linear-gradient(155deg, var(--ink-3), rgba(78, 15, 25, .55));
}

.page-products .pick__col + .pick__col {
  border-top: 2px solid var(--gold);
}

.page-products .pick__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.2;
  color: var(--porcelain);
  margin: 14px 0 6px;
}

.page-products .pick__sum {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gold-light);
}

.page-products .pick__spec {
  margin: 0 0 24px;
}

.page-products .pick__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-stone);
}

.page-products .pick__row:last-child {
  border-bottom: 0;
}

.page-products .pick__row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--jade-light);
}

.page-products .pick__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(245, 241, 234, .88);
}

.page-products .pick__btn {
  width: 100%;
  text-align: center;
}

/* ---------- 资料清单 ---------- */
.page-products .assets__grid {
  display: grid;
  gap: var(--ps-gap);
}

.page-products .dl-wrap {
  min-width: 0;
}

.page-products .dl-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products .dl-table__cap {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--stone);
  padding-bottom: 12px;
}

.page-products .dl-table thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--gold);
  padding: 10px 12px;
  border-bottom: 2px solid var(--line-gold);
  white-space: nowrap;
}

.page-products .dl-table td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line-stone);
  vertical-align: top;
  line-height: 1.7;
  color: rgba(245, 241, 234, .9);
}

.page-products .dl-table tbody tr:nth-child(even) {
  background: rgba(245, 241, 234, .035);
}

.page-products .dl-table tbody tr:hover {
  background: rgba(201, 162, 39, .07);
}

.page-products .dl-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .dl-name {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--porcelain);
}

.page-products .dl-freq {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  white-space: nowrap;
  padding: 4px 9px;
  color: var(--gold-light);
  border: 1px solid rgba(201, 162, 39, .45);
}

.page-products .dl-freq--month {
  color: #B7E6DE;
  border-color: rgba(63, 166, 149, .6);
  background: rgba(46, 143, 130, .18);
}

.page-products .dl-act {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  white-space: nowrap;
  padding: 6px 11px;
  color: var(--jade-light);
  border: 1px solid rgba(46, 143, 130, .5);
  text-decoration: none;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-products .dl-act:hover,
.page-products .dl-act:focus-visible {
  background: var(--jade-light);
  border-color: var(--jade-light);
  color: var(--ink);
}

/* ---------- 三步路径 ---------- */
.page-products .steps__figure {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(26px, 3.4vw, 20px);
}

.page-products .steps__item {
  position: relative;
  padding-top: 42px;
}

.page-products .steps__dot {
  position: absolute;
  top: 6px;
  left: 0;
  width: 15px;
  height: 15px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(201, 162, 39, .14);
}

.page-products .steps__item::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 24px;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line-gold), rgba(201, 162, 39, 0));
}

.page-products .steps__item:last-child::before {
  display: none;
}

.page-products .steps__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--jade-light);
  margin: 0 0 8px;
}

.page-products .steps__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  color: var(--porcelain);
  margin: 0 0 10px;
}

.page-products .steps__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--stone);
}

.page-products .steps__jump {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .45);
  padding-bottom: 2px;
}

.page-products .steps__jump:hover,
.page-products .steps__jump:focus-visible {
  color: var(--porcelain);
  border-bottom-color: var(--porcelain);
}

/* ---------- 适配清单 ---------- */
.page-products .split {
  display: grid;
  gap: var(--ps-gap);
}

.page-products .usecase {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .usecase__item {
  padding-left: 18px;
  border-left: 2px solid var(--red);
}

.page-products .usecase__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.4;
  color: var(--porcelain);
  margin: 0 0 6px;
}

.page-products .usecase__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--stone);
}

.page-products .note {
  margin: 0;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(245, 241, 234, .82);
  background: rgba(46, 143, 130, .14);
  border-left: 2px solid var(--jade);
}

/* ---------- 离线资料包 ---------- */
.page-products .offline {
  display: grid;
  border: 2px solid var(--line-gold);
  background:
    radial-gradient(circle at 88% 12%, rgba(201, 162, 39, .16), transparent 46%),
    linear-gradient(150deg, var(--red-deep), var(--ink));
  box-shadow: 0 24px 52px rgba(78, 15, 25, .46);
}

.page-products .offline__text {
  padding: clamp(26px, 4vw, 52px);
}

.page-products .offline__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.22;
  color: var(--porcelain);
  margin: 0 0 14px;
}

.page-products .offline__lead {
  margin: 0 0 22px;
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.88;
  color: rgba(245, 241, 234, .88);
  max-width: 40em;
}

.page-products .offline__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .offline__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--porcelain);
}

.page-products .offline__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
}

.page-products .offline__tip {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gold-light);
}

.page-products .offline__figure {
  margin: 0;
  border-top: 2px solid var(--line-gold);
}

.page-products .offline__figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 安装与适配 ---------- */
.page-products .folds {
  display: grid;
  gap: 14px;
  max-width: 74ch;
}

.page-products .fold {
  border: 1px solid var(--line-stone);
  border-left: 2px solid var(--red);
  background: rgba(28, 25, 23, .72);
}

.page-products .fold__more {
  display: block;
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  font-family: var(--font-serif);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--porcelain);
  background: none;
  border: 0;
  cursor: pointer;
}

.page-products .fold__more:hover,
.page-products .fold__more:focus-visible {
  color: var(--gold-light);
}

.page-products .fold__body {
  padding: 0 18px 18px;
}

.page-products .fold__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 协助 ---------- */
.page-products .help {
  display: grid;
  gap: var(--ps-gap);
  padding: clamp(24px, 3.4vw, 40px);
  border: 2px solid var(--line-gold);
  background: linear-gradient(140deg, var(--ink-2), var(--ink));
}

.page-products .help__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.24;
  color: var(--porcelain);
  margin: 0 0 12px;
}

.page-products .help__text p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--stone);
  max-width: 42em;
}

.page-products .help__contact {
  padding: 20px;
  border: 1px solid var(--line-stone);
  border-top: 2px solid var(--gold);
  background: rgba(78, 15, 25, .28);
}

.page-products .help__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-products .help__value {
  margin: 0 0 6px;
  font-size: 14.5px;
  letter-spacing: .04em;
  color: var(--porcelain);
  word-break: break-all;
}

.page-products .help__meta {
  margin: 10px 0 12px;
  font-size: 13px;
  color: var(--stone);
}

.page-products .help__tip {
  margin: 0 0 18px;
  padding-left: 12px;
  border-left: 2px solid var(--jade);
  font-size: 13px;
  line-height: 1.75;
  color: var(--jade-light);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pick__row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }

  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-products .steps__item::before {
    right: 12px;
  }
}

@media (min-width: 900px) {
  .page-products .pick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pick__col + .pick__col {
    border-top: 0;
    border-left: 2px solid var(--gold);
  }

  .page-products .pick__btn {
    width: auto;
    min-width: 220px;
  }

  .page-products .assets__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .assets__figure {
    position: sticky;
    top: calc(var(--beam-h) + 32px);
  }

  .page-products .split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .offline {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .offline__figure {
    border-top: 0;
    border-left: 2px solid var(--line-gold);
  }

  .page-products .offline__figure img {
    height: 100%;
    min-height: 320px;
    object-fit: cover;
  }

  .page-products .help {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(32px, 4vw, 56px);
  }
}

@media (max-width: 767px) {
  .page-products .dl-table,
  .page-products .dl-table tbody,
  .page-products .dl-table tr,
  .page-products .dl-table td {
    display: block;
    width: 100%;
  }

  .page-products .dl-table thead {
    display: none;
  }

  .page-products .dl-table tr {
    border: 1px solid var(--line-stone);
    border-left: 2px solid var(--red);
    padding: 14px 16px;
    margin-bottom: 12px;
    background: rgba(28, 25, 23, .6);
  }

  .page-products .dl-table tbody tr:nth-child(even) {
    background: rgba(28, 25, 23, .6);
  }

  .page-products .dl-table td {
    border-bottom: 0;
    padding: 4px 0;
  }

  .page-products .dl-table td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: .1em;
    color: var(--stone);
    margin-bottom: 2px;
  }

  .page-products .dl-no::before,
  .page-products .dl-name::before {
    display: none;
  }

  .page-products .dl-name {
    font-size: 16px;
    margin-bottom: 6px;
  }

  .page-products .assets__figure {
    margin-bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}