.page-products {
  --prod-gap: clamp(18px, 2.4vw, 32px);
  --prod-soft: #ffffff;
  position: relative;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-products .section {
  padding: clamp(48px, 7vw, 96px) 0;
  position: relative;
}

.page-products .section--band {
  background: var(--paper-warm);
  border-radius: 4px;
  padding: clamp(40px, 5.4vw, 76px) clamp(18px, 3vw, 44px);
  margin-left: clamp(-44px, -3vw, -18px);
  margin-right: clamp(-44px, -3vw, -18px);
}

.page-products .section--ink {
  background: linear-gradient(160deg, var(--ink) 0%, var(--graphite) 70%, #17191c 100%);
  color: var(--paper);
  border-radius: 8px;
  padding: clamp(44px, 6vw, 84px) clamp(20px, 3.4vw, 48px);
  margin-left: clamp(-44px, -3vw, -18px);
  margin-right: clamp(-44px, -3vw, -18px);
}

.page-products .section-head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 3.4vw, 44px);
}

.page-products .section-head .section-title {
  margin: 10px 0 14px;
}

.page-products .section-head .lede {
  color: var(--graphite);
  opacity: 0.86;
  margin: 0;
}

.page-products .section--ink .section-head .lede {
  color: rgba(243, 244, 241, 0.76);
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin: 0;
}

.page-products .section--ink .eyebrow {
  color: var(--gold);
}

.page-products .version-chip {
  display: inline-block;
  padding: 2px 10px;
  border-bottom: 2px solid var(--gold);
  color: var(--gold-deep);
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ===== 隐藏的单选控件 ===== */
.page-products .sr-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ===== 首屏 ===== */
.page-products .page-hero {
  position: relative;
  background:
    radial-gradient(120% 96% at 88% -6%, rgba(201, 162, 39, 0.22), transparent 62%),
    linear-gradient(158deg, #111111 0%, #1f2124 58%, #141619 100%);
  color: var(--paper);
  padding: clamp(28px, 4vw, 44px) 0 clamp(48px, 6.6vw, 88px);
  overflow: hidden;
}

.page-products .page-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold) 22%, var(--gold) 78%, transparent);
  opacity: 0.7;
}

.page-products .page-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(243, 244, 241, 0.6);
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-products .page-hero .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-products .page-hero .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold-deep);
}

.page-products .page-hero .breadcrumb a {
  color: rgba(243, 244, 241, 0.84);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-gold);
}

.page-products .page-hero .breadcrumb a:hover {
  color: var(--gold);
}

.page-products .page-hero .breadcrumb [aria-current="page"] {
  color: var(--gold);
}

.page-products .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 4.4vw, 60px);
}

.page-products .hero-copy h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 12px 0 18px;
  color: #fff;
}

.page-products .hero-copy .lede {
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(243, 244, 241, 0.82);
  margin: 0 0 14px;
  max-width: 60ch;
}

.page-products .hero-note {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(243, 244, 241, 0.58);
  margin: 0 0 clamp(24px, 3vw, 34px);
}

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

.page-products .hero-actions .btn-outline {
  border-color: var(--rule-gold);
  color: var(--gold);
}

.page-products .hero-actions .btn-outline:hover {
  background: rgba(201, 162, 39, 0.14);
}

.page-products .hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.page-products .hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 14px;
  border-left: 2px solid var(--gold);
  background: rgba(243, 244, 241, 0.04);
  border-radius: 0 6px 6px 0;
}

.page-products .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-products .stat-label {
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: rgba(243, 244, 241, 0.62);
}

/* ===== 分屏骨架 ===== */
.page-products .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-products .aside-panel {
  padding-top: 22px;
  border-top: 2px solid var(--gold);
}

.page-products .aside-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
  margin: 0 0 14px;
  text-transform: uppercase;
}

.page-products .aside-panel .rule-gold {
  margin: 24px 0;
  min-height: 1px;
}

.page-products .toc {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-products .toc a {
  font-size: 14px;
  line-height: 1.6;
  color: var(--graphite);
  text-decoration: none;
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.page-products .toc a:hover,
.page-products .toc a.is-current {
  color: var(--gold-deep);
  border-bottom-color: var(--gold);
}

.page-products .aside-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .aside-links a {
  font-size: 14.5px;
  color: var(--graphite);
  text-decoration: none;
  padding-left: 14px;
  position: relative;
}

.page-products .aside-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

.page-products .aside-links a:hover {
  color: var(--cinnabar);
}

/* ===== 设备专区 ===== */
.page-products .device-banner {
  margin: 0 0 clamp(24px, 3vw, 38px);
  aspect-ratio: 14 / 9;
  border: 1px solid var(--rule);
  border-radius: 4px 18px 4px 18px;
}

.page-products .device-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .device-switch {
  position: relative;
}

.page-products .device-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-products .device-tabs label {
  cursor: pointer;
  padding: 9px 18px;
  font-size: 14px;
  color: var(--stone);
  background: var(--prod-soft);
  border: 1px solid var(--rule);
  border-radius: 999px;
  transition: color 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.page-products .device-tabs label:hover {
  color: var(--gold-deep);
  border-color: var(--rule-gold);
}

.page-products #db-desktop:checked ~ .device-tabs label[for="db-desktop"],
.page-products #db-tablet:checked ~ .device-tabs label[for="db-tablet"],
.page-products #db-mobile:checked ~ .device-tabs label[for="db-mobile"],
.page-products #db-web:checked ~ .device-tabs label[for="db-web"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold);
  box-shadow: inset 0 -2px 0 var(--cinnabar);
}

.page-products .device-panel {
  display: none;
}

.page-products #db-desktop:checked ~ .device-panels #panel-desktop,
.page-products #db-tablet:checked ~ .device-panels #panel-tablet,
.page-products #db-mobile:checked ~ .device-panels #panel-mobile,
.page-products #db-web:checked ~ .device-panels #panel-web {
  display: block;
}

.page-products .device-panel {
  background: var(--prod-soft);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  border-radius: 4px 16px 16px 4px;
  padding: clamp(20px, 3vw, 32px);
}

.page-products .device-panel h3 {
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  margin: 0 0 12px;
}

.page-products .device-panel p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 62ch;
}

.page-products .device-spec {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 26px;
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.page-products .device-spec > div {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-products .device-spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-products .device-spec dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

/* ===== 版本对照 ===== */
.page-products .compare-figure {
  margin: 0 0 clamp(24px, 3vw, 36px);
  aspect-ratio: 3 / 2;
  border: 1px solid var(--rule);
  border-radius: 18px 4px 18px 4px;
}

.page-products .compare-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .compare-zone {
  position: relative;
}

.page-products .diff-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .diff-switch label {
  cursor: pointer;
  font-size: 13.5px;
  padding: 8px 16px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--stone);
  background: var(--prod-soft);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-products .diff-switch label:hover {
  color: var(--gold-deep);
  border-color: var(--rule-gold);
}

.page-products #df-all:checked ~ .diff-switch label[for="df-all"],
.page-products #df-changed:checked ~ .diff-switch label[for="df-changed"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold);
}

.page-products .compare-table {
  border-top: 2px solid var(--ink);
}

.page-products .compare-head,
.page-products .compare-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--rule);
}

.page-products .compare-head {
  display: none;
}

.page-products .compare-row .col-item {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}

.page-products .compare-row .col-a,
.page-products .compare-row .col-b {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-products .compare-row .col-a::before {
  content: "2.3 版 · ";
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-deep);
}

.page-products .compare-row .col-b::before {
  content: "上一版本 · ";
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone);
}

.page-products #df-changed:checked ~ .compare-table .compare-row[data-state="keep"] {
  display: none;
}

.page-products .state {
  display: inline-block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 3px;
}

.page-products .state-new {
  background: rgba(201, 162, 39, 0.16);
  border: 1px solid var(--rule-gold);
  color: var(--gold-deep);
}

.page-products .state-opt {
  background: rgba(78, 93, 69, 0.14);
  border: 1px solid rgba(78, 93, 69, 0.32);
  color: var(--moss);
}

.page-products .state-keep {
  background: rgba(111, 116, 119, 0.12);
  border: 1px solid var(--rule);
  color: var(--stone);
}

.page-products .state-off {
  background: rgba(178, 34, 34, 0.1);
  border: 1px solid rgba(178, 34, 34, 0.32);
  color: var(--cinnabar);
}

/* ===== 安装包 ===== */
.page-products .download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
}

.page-products .dl-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .dl-item {
  background: var(--prod-soft);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  border-radius: 4px 12px 12px 4px;
  padding: 16px 18px;
}

.page-products .dl-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-products .dl-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-products .dl-name {
  margin: 0;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
}

.page-products .dl-meta {
  margin: 0;
  font-size: 13.5px;
  color: var(--stone);
  letter-spacing: 0.04em;
}

.page-products .dl-item .fold {
  margin-top: 12px;
}

.page-products .dl-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--rule);
  border-radius: 16px 4px 16px 4px;
}

.page-products .dl-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 案例合集 ===== */
.page-products .case-zone {
  position: relative;
}

.page-products .case-filters {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-products .filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-products .filter-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
  margin-right: 4px;
}

.page-products .filter-row label {
  cursor: pointer;
  font-size: 13.5px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.6);
  color: var(--graphite);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-products .filter-row label:hover {
  color: var(--gold-deep);
  border-color: var(--rule-gold);
}

.page-products #ct-all:checked ~ .case-filters label[for="ct-all"],
.page-products #ct-res:checked ~ .case-filters label[for="ct-res"],
.page-products #ct-case:checked ~ .case-filters label[for="ct-case"],
.page-products #ct-dev:checked ~ .case-filters label[for="ct-dev"],
.page-products #ct-ver:checked ~ .case-filters label[for="ct-ver"],
.page-products #cd-all:checked ~ .case-filters label[for="cd-all"],
.page-products #cd-desk:checked ~ .case-filters label[for="cd-desk"],
.page-products #cd-tab:checked ~ .case-filters label[for="cd-tab"],
.page-products #cd-mob:checked ~ .case-filters label[for="cd-mob"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold);
  box-shadow: inset 0 -2px 0 var(--cinnabar);
}

.page-products .case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-products #ct-res:checked ~ .case-grid .case-card:not([data-topic="res"]),
.page-products #ct-case:checked ~ .case-grid .case-card:not([data-topic="case"]),
.page-products #ct-dev:checked ~ .case-grid .case-card:not([data-topic="dev"]),
.page-products #ct-ver:checked ~ .case-grid .case-card:not([data-topic="ver"]),
.page-products #cd-desk:checked ~ .case-grid .case-card:not([data-device="desk"]),
.page-products #cd-tab:checked ~ .case-grid .case-card:not([data-device="tab"]),
.page-products #cd-mob:checked ~ .case-grid .case-card:not([data-device="mob"]) {
  display: none;
}

.page-products .case-card {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(17, 17, 17, 0.07);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-radius: 18px;
  transition: border-color 0.2s, transform 0.2s;
}

.page-products .case-card:nth-child(3n + 1) {
  border-radius: 4px 20px 20px 20px;
}

.page-products .case-card:nth-child(3n + 2) {
  border-radius: 20px 4px 20px 20px;
}

.page-products .case-card:nth-child(3n) {
  border-radius: 20px 20px 4px 20px;
}

.page-products .case-card:hover {
  border-color: var(--rule-gold);
  transform: translateY(-2px);
}

.page-products .case-card h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
  color: var(--ink);
}

.page-products .case-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 6px;
}

.page-products .case-figure {
  margin: clamp(24px, 3vw, 38px) 0 0;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--rule);
  border-radius: 4px 20px 4px 20px;
}

.page-products .case-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 适配矩阵 ===== */
.page-products .matrix-scroll {
  overflow-x: auto;
  padding-bottom: 6px;
}

.page-products .matrix {
  display: grid;
  grid-template-columns: minmax(112px, 1.4fr) repeat(4, minmax(74px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  min-width: 520px;
}

.page-products .m-cell {
  background: var(--prod-soft);
  padding: 14px 12px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 54px;
}

.page-products .m-head {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  justify-content: center;
}

.page-products .m-label {
  font-weight: 500;
  color: var(--ink);
  background: rgba(233, 226, 210, 0.5);
}

.page-products .dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex: none;
}

.page-products .dot-on {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.18);
}

.page-products .dot-part {
  background: transparent;
  border: 1.5px solid var(--stone);
}

.page-products .dot-off {
  background: rgba(111, 116, 119, 0.2);
}

.page-products .dot-txt {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

.page-products .matrix-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-products .matrix-figure {
  margin: clamp(24px, 3vw, 36px) 0 0;
  aspect-ratio: 11 / 8;
  border: 1px solid var(--rule);
  border-radius: 20px 4px 20px 4px;
}

.page-products .matrix-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .fold--wide {
  margin-top: 22px;
  background: var(--prod-soft);
  border: 1px solid var(--rule);
  border-radius: 4px 12px 12px 4px;
  padding: 16px 18px;
}

/* ===== 安装步骤 ===== */
.page-products .install-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .install-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: clamp(22px, 3vw, 32px) 0;
  border-top: 1px solid var(--rule-ink);
}

.page-products .install-step:last-child {
  border-bottom: 1px solid var(--rule-ink);
}

.page-products .step-no {
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.page-products .step-body h3 {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  margin: 0 0 10px;
  color: #fff;
}

.page-products .step-body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 244, 241, 0.76);
  max-width: 66ch;
}

.page-products .step-body .fold {
  margin-top: 14px;
  border: 1px solid var(--rule-ink);
  border-radius: 4px;
  padding: 12px 16px;
  color: rgba(243, 244, 241, 0.8);
}

.page-products .step-body .fold summary {
  color: var(--gold);
}

.page-products .step-body .fold-body p {
  color: rgba(243, 244, 241, 0.74);
  font-size: 14.5px;
  line-height: 1.8;
  margin: 10px 0 2px;
}

.page-products .support-strip {
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--rule-ink);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-products .support-text h3 {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  margin: 0 0 10px;
  color: #fff;
}

.page-products .support-text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 244, 241, 0.72);
  max-width: 66ch;
}

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

.page-products .support-links .btn-ghost {
  border-color: var(--rule-gold);
  color: var(--gold);
}

.page-products .support-links .btn-ghost:hover {
  background: rgba(201, 162, 39, 0.14);
}

/* ===== 窄屏补充 ===== */
@media (max-width: 520px) {
  .page-products .hero-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .hero-stats li {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
  }

  .page-products .stat-label {
    font-size: 13px;
  }

  .page-products .section--band,
  .page-products .section--ink {
    margin-left: 0;
    margin-right: 0;
    border-radius: 0;
  }
}

/* ===== 平板与桌面 ===== */
@media (min-width: 700px) {
  .page-products .device-spec {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .download-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-products .matrix-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-products .install-step {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-products .support-strip {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
  }

  .page-products .support-links {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-products .hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(36px, 5vw, 64px);
  }

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

  .page-products .compare-head,
  .page-products .compare-row {
    grid-template-columns: minmax(140px, 1.05fr) minmax(0, 1.9fr) minmax(0, 1.7fr) 88px;
    gap: 18px;
    align-items: baseline;
    padding: 16px 8px;
  }

  .page-products .compare-head {
    display: grid;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    color: var(--stone);
    border-bottom: 1px solid var(--ink);
  }

  .page-products .compare-row .col-a::before,
  .page-products .compare-row .col-b::before {
    content: none;
  }

  .page-products .compare-row {
    transition: background 0.2s;
  }

  .page-products .compare-row[data-state="new"]:hover,
  .page-products .compare-row[data-state="opt"]:hover {
    background: rgba(201, 162, 39, 0.07);
    box-shadow: inset 3px 0 0 var(--gold);
  }

  .page-products .compare-row[data-state="off"]:hover {
    background: rgba(178, 34, 34, 0.05);
    box-shadow: inset 3px 0 0 var(--cinnabar);
  }
}

@media (min-width: 981px) {
  .page-products .split {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    align-items: start;
    gap: clamp(32px, 4vw, 60px);
  }

  .page-products .split-aside.is-sticky {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-products .toc {
    flex-direction: column;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .case-card,
  .page-products .device-tabs label,
  .page-products .filter-row label,
  .page-products .diff-switch label,
  .page-products .compare-row {
    transition: none;
  }

  .page-products .case-card:hover {
    transform: none;
  }
}