.page-products {
  --pp-line: var(--grid);
  --pp-hot-line: rgba(255, 138, 61, 0.45);
  background: var(--night);
  color: var(--mist);
  padding-bottom: 72px;
}

.page-products .pp-wrap {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  border-bottom: 1px solid var(--pp-line);
  background:
    radial-gradient(920px 420px at 84% -20%, rgba(255, 138, 61, 0.20), transparent 68%),
    radial-gradient(700px 360px at 6% 0%, rgba(69, 217, 255, 0.12), transparent 70%),
    linear-gradient(180deg, var(--teal) 0%, var(--night) 78%);
}

.page-products .pp-hero__inner {
  padding: 22px 0 44px;
}

.page-products .breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 26px;
}

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

.page-products .breadcrumb__item a:hover,
.page-products .breadcrumb__item a:focus-visible {
  color: var(--cyan);
}

.page-products .pp-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-products h1 {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--mist);
}

.page-products .pp-lead {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(233, 243, 247, 0.84);
  margin: 0 0 36px;
}

.page-products .pp-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--pp-line);
}

.page-products .pp-quick__item {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .pp-quick__k {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-products .pp-quick__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 骨架：索引 + 主体 ---------- */
.page-products .pp-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-products .pp-index {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 14px 0;
  border-bottom: 1px solid var(--pp-line);
  scrollbar-width: thin;
}

.page-products .pp-index__head {
  display: none;
}

.page-products .pp-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid var(--pp-line);
  font-size: 13px;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
}

.page-products .pp-index__link:hover,
.page-products .pp-index__link:focus-visible {
  color: var(--mist);
  border-color: var(--cyan);
}

.page-products .pp-idx {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

/* ---------- 章节 ---------- */
.page-products .pp-sec {
  padding: 46px 0 0;
  margin-top: 46px;
  border-top: 1px solid var(--pp-line);
}

.page-products .pp-sec--last {
  padding-bottom: 8px;
}

.page-products .pp-sec__head {
  margin-bottom: 26px;
}

.page-products .pp-sec h2 {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
  color: var(--mist);
}

.page-products .pp-sub {
  max-width: 46em;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-products .pp-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 217, 255, 0.45);
}

.page-products .pp-note a:hover,
.page-products .pp-note a:focus-visible {
  color: var(--mint);
}

/* ---------- 图 ---------- */
.page-products .pp-figure {
  margin: 0 0 26px;
  border: 1px solid var(--pp-line);
  background: var(--teal);
  overflow: hidden;
}

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

.page-products .pp-cap {
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--slate);
  border-top: 1px solid var(--pp-line);
  background: rgba(6, 18, 31, 0.6);
}

/* ---------- 表格 ---------- */
.page-products .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--pp-line);
  background: rgba(10, 34, 48, 0.55);
}

.page-products .pp-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.6;
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: 13px 15px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .pp-table thead th {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--slate);
  background: rgba(6, 18, 31, 0.8);
  white-space: nowrap;
  border-bottom: 1px solid var(--cyan);
}

.page-products .pp-table tbody th {
  font-weight: 700;
  color: var(--mist);
  white-space: nowrap;
  background: rgba(6, 18, 31, 0.35);
}

.page-products .pp-table tbody td {
  color: var(--slate);
}

.page-products .pp-table tbody tr:hover {
  background: rgba(43, 224, 138, 0.07);
}

.page-products .pp-table tbody tr:last-child th,
.page-products .pp-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pp-table .pp-hot {
  color: var(--mist);
  background: linear-gradient(180deg, rgba(255, 138, 61, 0.16), rgba(255, 138, 61, 0.05));
  border-left: 1px solid var(--pp-hot-line);
  border-right: 1px solid var(--pp-hot-line);
}

.page-products .pp-table thead .pp-hot {
  color: var(--amber);
  background: rgba(255, 138, 61, 0.12);
  border-bottom-color: var(--amber);
}

.page-products .pp-table--compact {
  min-width: 620px;
}

/* ---------- 桌面实测分栏 ---------- */
.page-products .pp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 26px;
}

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

.page-products .pp-split__text h3 {
  font-family: var(--sans);
  font-weight: 900;
  font-size: 19px;
  margin: 0 0 14px;
  color: var(--mist);
}

.page-products .pp-points {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-products .pp-points li {
  padding: 11px 0 11px 14px;
  border-left: 2px solid var(--amber);
  border-bottom: 1px solid var(--pp-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-points li:first-child {
  border-top: 1px solid var(--pp-line);
}

.page-products .pp-points__k {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-products .pp-body__tip {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(233, 243, 247, 0.72);
}

/* ---------- 版本四问 ---------- */
.page-products .pp-qs {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  border-top: 1px solid var(--pp-line);
}

.page-products .pp-q {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .pp-q__num {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.04em;
  padding-top: 2px;
}

.page-products .pp-q__title {
  font-family: var(--sans);
  font-weight: 900;
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--mist);
}

.page-products .pp-q p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 推荐结果 ---------- */
.page-products .pp-recos {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--pp-line);
}

.page-products .pp-reco {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--pp-line);
  background: rgba(255, 138, 61, 0.04);
}

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

.page-products .pp-reco__cond {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-products .pp-reco__res {
  margin: 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: 17px;
  color: var(--mist);
}

.page-products .pp-reco .tag {
  justify-self: start;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- 12 步 ---------- */
.page-products .pp-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .pp-step {
  border: 1px solid var(--pp-line);
  background: rgba(10, 34, 48, 0.5);
}

.page-products .pp-step[open] {
  background: rgba(10, 34, 48, 0.85);
  border-color: rgba(255, 138, 61, 0.35);
}

.page-products .pp-step__sum {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .pp-step__sum::-webkit-details-marker {
  display: none;
}

.page-products .pp-step__num {
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.page-products .pp-step__name {
  font-family: var(--sans);
  font-weight: 900;
  font-size: 17px;
  color: var(--mist);
}

.page-products .pp-step__meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-left: auto;
}

.page-products .pp-step__list {
  margin: 0;
  padding: 0 16px 16px 34px;
  color: var(--slate);
  font-size: 14px;
  line-height: 1.75;
}

.page-products .pp-step__list li {
  padding: 4px 0;
}

.page-products .pp-step__list li::marker {
  font-family: var(--mono);
  color: var(--cyan);
  font-size: 12px;
}

/* ---------- 方法三栏 ---------- */
.page-products .pp-tri {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--pp-line);
}

.page-products .pp-tri__col {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .pp-tri__col h3 {
  font-family: var(--sans);
  font-weight: 900;
  font-size: 17px;
  margin: 0 0 10px;
  padding-left: 14px;
  border-left: 2px solid var(--slate);
  color: var(--mist);
}

.page-products .pp-tri__col p {
  margin: 0;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .pp-tri__col--cyan h3 { border-left-color: var(--cyan); }
.page-products .pp-tri__col--amber h3 { border-left-color: var(--amber); }
.page-products .pp-tri__col--pass h3 { border-left-color: var(--pass); }

/* ---------- 下一步 ---------- */
.page-products .pp-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .pp-next__item {
  display: block;
  padding: 18px 16px;
  border: 1px solid var(--pp-line);
  border-top: 2px solid var(--slate);
  text-decoration: none;
  color: var(--mist);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .pp-next__k {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
  margin-bottom: 8px;
}

.page-products .pp-next__t {
  display: block;
  font-family: var(--sans);
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 8px;
}

.page-products .pp-next__d {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-next__item--pass { border-top-color: var(--pass); }
.page-products .pp-next__item--amber { border-top-color: var(--amber); }
.page-products .pp-next__item--cyan { border-top-color: var(--cyan); }
.page-products .pp-next__item--wine { border-top-color: #7d2b47; }

.page-products .pp-next__item:hover,
.page-products .pp-next__item:focus-visible {
  background: rgba(43, 224, 138, 0.08);
  border-color: var(--pass);
}

.page-products .pp-next__item:hover .pp-next__d,
.page-products .pp-next__item:focus-visible .pp-next__d {
  color: var(--mint);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-products .pp-hero__inner {
    padding: 28px 0 52px;
  }

  .page-products .pp-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-quick__item {
    padding: 20px 20px 22px 0;
    border-bottom: 0;
    border-right: 1px solid var(--pp-line);
  }

  .page-products .pp-quick__item:first-child {
    padding-left: 0;
  }

  .page-products .pp-quick__item:not(:first-child) {
    padding-left: 20px;
  }

  .page-products .pp-quick__item:last-child {
    border-right: 0;
  }

  .page-products .pp-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-split {
    grid-template-columns: 1.05fr 1fr;
    gap: 30px;
    align-items: start;
  }

  .page-products .pp-reco {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 18px;
    padding: 20px 22px;
  }

  .page-products .pp-reco__cond {
    grid-column: 1;
  }

  .page-products .pp-reco__res {
    grid-column: 1;
  }

  .page-products .pp-reco .tag {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .page-products .pp-tri {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--pp-line);
  }

  .page-products .pp-tri__col {
    padding: 22px 22px 24px 0;
    border-bottom: 0;
    border-right: 1px solid var(--pp-line);
  }

  .page-products .pp-tri__col:not(:first-child) {
    padding-left: 22px;
  }

  .page-products .pp-tri__col:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

@media (min-width: 1024px) {
  .page-products .pp-shell {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: 52px;
  }

  .page-products .pp-index {
    display: block;
    overflow: visible;
    position: sticky;
    top: calc(var(--head-h) + 26px);
    align-self: start;
    padding: 34px 0 0;
    border-bottom: 0;
    border-top: 1px solid var(--pp-line);
    margin-top: 46px;
    max-height: calc(100vh - var(--head-h) - 60px);
  }

  .page-products .pp-index__head {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--slate);
    margin: 0 0 10px;
  }

  .page-products .pp-index__link {
    display: flex;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--pp-line);
    padding: 11px 0;
    font-size: 14px;
    white-space: normal;
  }

  .page-products .pp-index__link:first-of-type {
    border-top: 1px solid var(--pp-line);
  }

  .page-products .pp-index__link:hover,
  .page-products .pp-index__link:focus-visible {
    color: var(--mint);
    padding-left: 6px;
  }

  .page-products .pp-sec {
    padding-top: 52px;
    margin-top: 52px;
  }

  .page-products .pp-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-step__num {
    font-size: 38px;
  }

  .page-products .pp-step__meta {
    margin-left: 0;
    width: 100%;
  }
}

@media (min-width: 1200px) {
  .page-products .pp-lead {
    font-size: 17px;
  }

  .page-products .pp-next {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>