.page-products {
  --grad-gold-red: linear-gradient(135deg, #FFD700 0%, #E60012 100%);
  --grad-card: linear-gradient(160deg, #1A1F2E 0%, #121724 100%);
  --clip-cut: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  font-family: var(--font-body);
  color: var(--c-text);
  position: relative;
}

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

.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 2px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-muted);
}

.page-products .breadcrumb a {
  color: var(--c-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-products .breadcrumb a:hover {
  text-decoration: underline;
  color: var(--c-pale-gold);
}

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

.page-products .section-head h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  color: var(--c-text);
  letter-spacing: 0.04em;
  margin: 6px 0 8px;
  text-shadow: 0 4px 18px rgba(255, 215, 0, 0.14);
}

.page-products .section-head p:not(.section-kicker) {
  color: var(--c-muted);
  line-height: 1.7;
  max-width: 56ch;
}

.page-products__layout {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 12px 0 56px;
}

.page-products__toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
  background: var(--c-panel);
  border-left: 3px solid var(--c-gold);
  clip-path: var(--clip-cut);
}

.page-products__toc a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-muted);
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  transition: all 0.2s ease;
}

.page-products__toc a:hover,
.page-products__toc a:focus-visible {
  color: var(--c-bg);
  background: var(--c-gold);
  border-color: transparent;
}

.page-products__toc .toc-num {
  color: var(--c-red);
  font-size: 0.75rem;
  transition: color 0.2s ease;
}

.page-products__toc a:hover .toc-num,
.page-products__toc a:focus-visible .toc-num {
  color: var(--c-bg);
}

/* ===== 下载中心 ===== */
.dl-hero {
  position: relative;
  padding: 30px 0;
  overflow: hidden;
}

.dl-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(230, 0, 18, 0.16) 0%, transparent 34%),
    radial-gradient(circle at 88% 16%, rgba(255, 215, 0, 0.12), transparent 44%);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.dl-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
  align-items: center;
}

.dl-hero__copy h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.2;
  font-weight: 700;
  margin: 6px 0 12px;
  background: linear-gradient(120deg, #FFD700 18%, #FFF3B0 46%, #E60012 92%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dl-hero__lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--c-muted);
  max-width: 32em;
}

.dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 22px 0 16px;
}

.dl-hero__actions .btn-gold,
.dl-hero__actions .btn-ghost {
  font-size: 1rem;
  padding: 14px 26px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.dl-hero__actions .btn-gold {
  box-shadow: 0 6px 24px rgba(255, 215, 0, 0.35);
}

.dl-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.dl-hero__platforms {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
  padding: 0;
}

.dl-hero__platforms li {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-pale-gold);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 4px 10px;
  background: rgba(255, 243, 176, 0.05);
}

.dl-hero__note {
  font-size: 0.875rem;
  color: var(--c-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.6;
}

.dl-hero__note::before {
  content: "●";
  color: var(--c-neon);
  font-size: 0.625rem;
  line-height: 1.6;
}

.dl-hero__figure .img-frame {
  border: 1px solid var(--c-border);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  background: var(--c-panel);
}

.dl-hero__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-muted);
  text-align: right;
  letter-spacing: 0.06em;
}

.coin {
  position: absolute;
  width: 16px;
  height: 16px;
  background: radial-gradient(circle at 30% 30%, #FFF3B0, #FFD700 55%, #B8860B);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
  z-index: 0;
  animation: coinFloat 4s ease-in-out infinite;
}

.coin::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(184, 134, 11, 0.8);
  border-radius: 50%;
}

.coin--1 {
  top: 12%;
  right: 8%;
  animation-delay: 0s;
}

.coin--2 {
  top: 58%;
  right: 4%;
  width: 12px;
  height: 12px;
  animation-delay: 1.2s;
}

.coin--3 {
  top: 30%;
  right: 22%;
  width: 10px;
  height: 10px;
  animation-delay: 2.1s;
}

@keyframes coinFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(30deg); }
}

/* ===== 下载确认浮层 ===== */
.dl-overlay {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(10, 14, 26, 0.82);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.dl-overlay:target {
  opacity: 1;
  pointer-events: auto;
}

.dl-overlay__card {
  position: relative;
  max-width: 480px;
  width: 100%;
  padding: 30px 28px;
  background: var(--grad-card);
  border: 1px solid var(--c-border);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.dl-overlay__close {
  position: absolute;
  top: 14px;
  right: 20px;
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.dl-overlay__close:hover {
  color: var(--c-red);
  transform: scale(1.15);
}

.dl-overlay__card h3 {
  font-family: var(--font-head);
  font-size: 1.45rem;
  margin: 6px 0 10px;
  color: var(--c-gold);
}

.dl-overlay__card p {
  color: var(--c-muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

.dl-overlay__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dl-overlay__links .btn-gold,
.dl-overlay__links .btn-ghost {
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 12px 22px;
}

.dl-overlay__foot {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-muted);
  margin-top: 16px;
  margin-bottom: 0;
}

/* ===== 版本兼容矩阵 ===== */
.matrix-section {
  position: relative;
  padding: 34px 0;
}

.matrix-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: -8px;
  width: 180px;
  height: 4px;
  background: var(--grad-gold-red);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}

.matrix-switch {
  position: relative;
}

.matrix-switch__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.matrix-switch__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.matrix-switch__tab {
  cursor: pointer;
  padding: 10px 18px;
  background: var(--c-panel);
  color: var(--c-muted);
  border: 1px solid rgba(212, 175, 55, 0.3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: all 0.2s ease;
}

.matrix-switch__tab:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.matrix-panel {
  display: none;
  padding: 22px 18px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.25);
  clip-path: var(--clip-cut);
}

#ver-tab-v1:checked ~ .matrix-switch__tabs label[for="ver-tab-v1"],
#ver-tab-v2:checked ~ .matrix-switch__tabs label[for="ver-tab-v2"],
#ver-tab-v3:checked ~ .matrix-switch__tabs label[for="ver-tab-v3"] {
  background: var(--grad-gold-red);
  color: var(--c-bg);
  border-color: transparent;
  font-weight: 700;
}

#ver-tab-v1:checked ~ .matrix-panel--v1,
#ver-tab-v2:checked ~ .matrix-panel--v2,
#ver-tab-v3:checked ~ .matrix-panel--v3 {
  display: block;
  animation: matrixPanelIn 0.35s ease both;
}

@keyframes matrixPanelIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.matrix-table-wrap {
  overflow-x: auto;
}

.matrix-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.matrix-table caption {
  font-family: var(--font-head);
  font-size: 1.1rem;
  text-align: left;
  margin-bottom: 12px;
  color: var(--c-gold);
}

.matrix-table th,
.matrix-table td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
}

.matrix-table th {
  font-family: var(--font-mono);
  font-weight: 400;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.matrix-table td {
  color: var(--c-text);
}

.matrix-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border: 1px solid;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}

.matrix-state--ok {
  color: var(--c-neon);
  border-color: rgba(0, 255, 135, 0.4);
  background: rgba(0, 255, 135, 0.08);
}

.matrix-state--ok::before {
  content: "";
  width: 10px;
  height: 6px;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg) translate(1px, -2px);
}

.matrix-state--no {
  color: var(--c-red);
  border-color: rgba(230, 0, 18, 0.4);
  background: rgba(230, 0, 18, 0.08);
}

.matrix-state--no::before {
  content: "×";
  font-size: 1rem;
  line-height: 1;
}

.matrix-panel__meta {
  margin-top: 14px;
  padding-left: 16px;
  border-left: 3px solid var(--c-red);
  color: var(--c-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.matrix-figure {
  margin: 24px 0 0;
}

.matrix-figure .img-frame {
  border: 1px solid rgba(212, 175, 55, 0.35);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  background: var(--c-panel);
}

/* ===== 配置指引 ===== */
.config-section {
  padding: 34px 0;
}

.config-grid {
  display: grid;
  gap: 18px;
}

.spec-card {
  position: relative;
  padding: 26px 22px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.3);
  clip-path: var(--clip-cut);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.spec-card:hover,
.spec-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--c-gold);
  box-shadow: 0 14px 40px rgba(255, 215, 0, 0.12);
}

.spec-card h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  margin: 10px 0 12px;
  color: var(--c-pale-gold);
}

.spec-card--recommend {
  border-color: rgba(212, 175, 55, 0.65);
}

.spec-card--ultra {
  border-color: rgba(0, 255, 135, 0.4);
}

.spec-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.spec-list li {
  color: var(--c-text);
  font-size: 0.9375rem;
  line-height: 1.7;
  padding-left: 18px;
  position: relative;
}

.spec-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.config-block {
  display: grid;
  gap: 20px;
  margin-top: 24px;
  align-items: start;
}

.config-figure .img-frame {
  border: 1px solid rgba(212, 175, 55, 0.35);
  clip-path: var(--clip-cut);
  background: var(--c-panel);
}

.config-steps {
  padding: 24px 22px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.25);
  clip-path: var(--clip-cut);
}

.config-steps h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--c-gold);
  margin: 0 0 14px;
}

.config-steps ol {
  counter-reset: cfg-step;
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.config-steps li {
  counter-increment: cfg-step;
  position: relative;
  padding-left: 42px;
  margin-bottom: 12px;
  color: var(--c-text);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.config-steps li::before {
  content: "0" counter(cfg-step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-bg);
  background: var(--c-gold);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.config-steps__note {
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
  border-top: 1px dashed rgba(212, 175, 55, 0.35);
  padding-top: 14px;
}

/* ===== V3 校验工具 ===== */
.checker-section {
  padding: 34px 0;
}

.checker-layout {
  display: grid;
  gap: 20px;
  align-items: start;
}

.checker-panel {
  position: relative;
  padding: 26px 22px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.28);
  clip-path: var(--clip-cut);
}

.checker-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checker-gauge {
  max-width: 240px;
  margin: 0 auto 12px;
}

.checker-gauge svg {
  display: block;
  width: 100%;
  height: auto;
}

.checker-gauge__track {
  stroke: var(--c-panel);
  stroke-width: 12;
}

.checker-gauge__arc {
  stroke: url(#gaugeGrad, none) fallback, var(--c-gold);
  stroke-width: 6;
  stroke-dasharray: 92 220;
  stroke-linecap: round;
}

.checker-gauge__arc {
  stroke: rgba(255, 215, 0, 0.85);
  stroke-dasharray: 92 220;
}

.checker-gauge__needle {
  transform: rotate(-56deg);
  transform-origin: 100px 108px;
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

.checker-gauge__needle line {
  stroke: var(--c-red);
  stroke-width: 3;
}

.checker-gauge__needle circle {
  fill: var(--c-gold);
  stroke: var(--c-red);
  stroke-width: 2;
}

.checker-gauge__label {
  display: block;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-muted);
  margin-top: 4px;
  transition: color 0.3s ease;
}

.checker-run-btn {
  display: block;
  width: 100%;
  max-width: 260px;
  margin: 0 auto 18px;
  text-align: center;
  cursor: pointer;
  font-size: 1rem;
  padding: 13px 24px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.checker-list {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.checker-list li {
  position: relative;
  padding-left: 24px;
  color: var(--c-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  opacity: 1;
}

.checker-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 10px;
  border: 1px solid var(--c-muted);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.checker-toggle:checked ~ .checker-gauge .checker-gauge__needle {
  transform: rotate(40deg);
}

.checker-toggle:checked ~ .checker-gauge .checker-gauge__label {
  color: var(--c-neon);
}

.checker-toggle:checked ~ .checker-list li {
  color: var(--c-neon);
  animation: checkerItemOk 0.35s ease both;
}

.checker-toggle:checked ~ .checker-list li::before {
  background: var(--c-neon);
  border-color: var(--c-neon);
}

.checker-toggle:checked ~ .checker-list li:nth-child(1) { animation-delay: 0.2s; }
.checker-toggle:checked ~ .checker-list li:nth-child(2) { animation-delay: 0.4s; }
.checker-toggle:checked ~ .checker-list li:nth-child(3) { animation-delay: 0.6s; }
.checker-toggle:checked ~ .checker-list li:nth-child(4) { animation-delay: 0.8s; }
.checker-toggle:checked ~ .checker-list li:nth-child(5) { animation-delay: 1s; }
.checker-toggle:checked ~ .checker-list li:nth-child(6) { animation-delay: 1.2s; }

@keyframes checkerItemOk {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

.checker-result {
  display: none;
  margin-top: 18px;
  border-top: 1px dashed rgba(212, 175, 55, 0.35);
  padding-top: 18px;
}

.checker-toggle:checked ~ .checker-result {
  display: block;
  animation: checkerResultIn 0.5s ease both;
}

@keyframes checkerResultIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.checker-ok {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 255, 135, 0.08);
  border: 1px solid rgba(0, 255, 135, 0.35);
  padding: 12px 14px;
  margin-bottom: 16px;
}

.checker-ok p {
  margin: 0;
  color: var(--c-neon);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.checker-errors {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.checker-errors caption {
  text-align: left;
  font-family: var(--font-head);
  color: var(--c-gold);
  margin-bottom: 8px;
  font-size: 1rem;
}

.checker-errors th,
.checker-errors td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  vertical-align: top;
}

.checker-errors th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.checker-errors td {
  color: var(--c-text);
}

.checker-errors td.text-num {
  color: var(--c-gold);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.checker-figure .img-frame {
  border: 1px solid rgba(212, 175, 55, 0.35);
  clip-path: var(--clip-cut);
  background: var(--c-panel);
}

.checker-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 14px 16px;
  background: rgba(255, 215, 0, 0.06);
  border-left: 3px solid var(--c-gold);
}

.checker-note p {
  margin: 0;
  color: var(--c-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ===== 已知问题 ===== */
.issues-section {
  padding: 34px 0;
}

.issues-list {
  display: grid;
  gap: 12px;
}

.page-products .accordion-panel {
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.25);
  clip-path: var(--clip-cut);
  padding: 4px 18px;
}

.page-products .accordion-panel__summary {
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--c-pale-gold);
  padding: 16px 0;
  list-style: none;
  position: relative;
  padding-right: 36px;
  transition: color 0.2s ease;
}

.page-products .accordion-panel__summary::-webkit-details-marker {
  display: none;
}

.page-products .accordion-panel__summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--c-gold);
  transition: transform 0.2s ease;
}

.page-products .accordion-panel[open] .accordion-panel__summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-products .accordion-panel__summary:hover {
  color: var(--c-gold);
}

.page-products .accordion-panel__body {
  padding: 4px 0 18px;
  border-top: 1px dashed rgba(212, 175, 55, 0.3);
}

.page-products .accordion-panel__body p,
.page-products .accordion-panel__body ol {
  color: var(--c-text);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-products .accordion-panel__body ol {
  padding-left: 20px;
  margin: 10px 0 14px;
}

.page-products .accordion-panel__body li {
  margin-bottom: 4px;
}

.page-products .accordion-panel__body .btn-ghost {
  margin-top: 8px;
  text-decoration: none;
  font-size: 0.875rem;
  padding: 10px 20px;
  display: inline-block;
}

/* ===== 更新日志 ===== */
.changelog-section {
  padding: 34px 0;
}

.changelog-layout {
  display: grid;
  gap: 20px;
  align-items: start;
}

.changelog-list {
  display: grid;
  gap: 14px;
}

.changelog-item {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 20px 18px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.25);
  clip-path: var(--clip-cut);
  align-items: flex-start;
}

.changelog-item .num-chip {
  flex-shrink: 0;
  font-family: var(--font-mono);
  color: var(--c-gold);
  border: 1px solid rgba(212, 175, 55, 0.6);
  padding: 6px 10px;
  font-size: 0.8125rem;
}

.changelog-item__desc {
  flex: 1;
  min-width: 0;
}

.changelog-item__desc h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  margin: 2px 0 8px;
  color: var(--c-pale-gold);
}

.changelog-item__desc p {
  color: var(--c-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0 0 10px;
}

.changelog-item__more {
  font-size: 0.875rem;
}

.changelog-item__more summary {
  cursor: pointer;
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  transition: color 0.2s ease;
}

.changelog-item__more summary:hover {
  color: var(--c-pale-gold);
}

.changelog-item__more ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--c-text);
  font-size: 0.875rem;
  line-height: 1.7;
}

.changelog-item > .tag-clip {
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 2px;
}

.changelog-figure .img-frame {
  border: 1px solid rgba(212, 175, 55, 0.35);
  clip-path: var(--clip-cut);
  background: var(--c-panel);
  aspect-ratio: 4 / 3;
}

/* ===== 延伸服务 ===== */
.rel-links {
  display: grid;
  gap: 14px;
  padding: 30px 0 10px;
}

.rel-link {
  display: block;
  text-decoration: none;
  padding: 22px 20px;
  background: var(--grad-card);
  border: 1px solid rgba(212, 175, 55, 0.28);
  clip-path: var(--clip-cut);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.rel-link:hover,
.rel-link:focus-visible {
  transform: translateY(-5px);
  border-color: var(--c-gold);
  background: linear-gradient(160deg, rgba(255, 215, 0, 0.1), #121724 90%);
}

.rel-link h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--c-pale-gold);
  margin: 12px 0 6px;
}

.rel-link p {
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
}

/* ===== 响应式增强 ===== */
@media (min-width: 768px) {
  .matrix-switch__tab {
    font-size: 0.9375rem;
    padding: 12px 22px;
  }

  .matrix-panel {
    padding: 28px 24px;
  }

  .config-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .spec-card--ultra {
    grid-column: 1 / -1;
  }

  .config-block {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .checker-layout {
    grid-template-columns: 1fr 0.85fr;
  }

  .changelog-layout {
    grid-template-columns: 1fr 0.5fr;
  }

  .rel-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products__layout {
    flex-direction: row;
    gap: 40px;
    align-items: flex-start;
  }

  .page-products__toc {
    position: sticky;
    top: 24px;
    flex: 0 0 210px;
    flex-direction: column;
    align-items: stretch;
  }

  .page-products__toc a {
    justify-content: flex-start;
    border: none;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    padding: 12px 10px;
    font-size: 0.875rem;
  }

  .page-products__content {
    flex: 1 1 auto;
    min-width: 0;
  }

  .dl-hero__grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 40px;
  }

  .config-grid {
    grid-template-columns: 1fr 1.16fr 1fr;
    align-items: center;
  }

  .spec-card--recommend {
    transform: translateY(-18px);
  }

  .spec-card--recommend:hover,
  .spec-card--recommend:focus-within {
    transform: translateY(-24px);
  }

  .checker-errors th,
  .checker-errors td {
    padding: 12px 10px;
  }
}