.page-products {
  --fn-line: rgba(47, 107, 84, .38);
  --fn-line-dim: rgba(47, 107, 84, .16);
  --fn-panel-bg: linear-gradient(158deg, rgba(14, 42, 33, .94) 0%, rgba(6, 18, 14, .9) 100%);
  --fn-grid-step: 48px;
  padding-bottom: 80px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .fn-hero {
  position: relative;
  padding: 20px 0 48px;
  isolation: isolate;
}

.page-products .fn-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -140px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 26, .22) 0%, rgba(255, 122, 26, 0) 68%);
  pointer-events: none;
  z-index: -1;
  animation: fn-breathe 16s ease-in-out infinite;
}

@keyframes fn-breathe {
  0%, 100% { opacity: .6; }
  50% { opacity: .84; }
}

.page-products .fn-hero-inner {
  display: grid;
  gap: 28px;
}

.page-products .fn-hero-copy {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .fn-hero-kicker {
  color: var(--orange);
  margin: 0;
}

.page-products .fn-hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(38px, 9vw, 76px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--cream);
  text-wrap: balance;
}

.page-products .fn-hero-lead {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .fn-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-products .fn-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 10px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--hairline-dim);
}

.page-products .fn-hero-meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .fn-meta-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-products .fn-meta-label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .04em;
}

.page-products .fn-hero-media {
  position: relative;
  margin: 0;
  border: var(--bw) solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-hard);
}

.page-products .fn-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.92) contrast(1.06);
}

.page-products .fn-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 18, 14, .62) 0%, rgba(6, 18, 14, 0) 58%);
  pointer-events: none;
}

.page-products .fn-hero-marker {
  display: none;
}

/* ---------- 章节索引 ---------- */
.page-products .fn-index {
  margin-bottom: 32px;
}

.page-products .fn-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0 0 16px;
  list-style: none;
  border-bottom: 1px solid var(--hairline-dim);
}

.page-products .fn-index-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  background: rgba(14, 42, 33, .62);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-products .fn-index-link:hover,
.page-products .fn-index-link:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 122, 26, .1);
}

.page-products .fn-index-link[aria-current="true"] {
  border-color: var(--orange);
  background: var(--orange);
  color: #1a0a02;
}

/* ---------- 面板容器 ---------- */
.page-products .fn-panels {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-products .fn-panel {
  position: relative;
  border: var(--bw) solid var(--line);
  border-radius: var(--r-panel);
  background: var(--fn-panel-bg);
  box-shadow: var(--shadow-hard);
  padding: 22px 18px 24px;
  scroll-margin-top: 120px;
  overflow: hidden;
}

.page-products .fn-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--fn-line-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--fn-line-dim) 1px, transparent 1px);
  background-size: var(--fn-grid-step) var(--fn-grid-step);
  opacity: .5;
  pointer-events: none;
}

.page-products .fn-panel > * {
  position: relative;
}

.page-products .fn-panel-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--hairline);
}

.page-products .fn-panel-no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-products .fn-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--hairline-dim);
  border-radius: var(--r-pill);
  background: rgba(6, 18, 14, .55);
}

.page-products .fn-state-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-products .fn-panel-title {
  flex: 1 1 100%;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 5.4vw, 30px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-products .fn-panel-body {
  display: grid;
  gap: 22px;
}

.page-products .fn-panel-main {
  min-width: 0;
}

.page-products .fn-panel-main p {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .86);
}

.page-products .fn-panel-main p:last-child {
  margin-bottom: 0;
}

.page-products .fn-panel-main a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, .45);
}

.page-products .fn-panel-main a:hover,
.page-products .fn-panel-main a:focus-visible {
  color: var(--edge);
  border-bottom-color: var(--edge);
}

/* ---------- 参数表 ---------- */
.page-products .fn-spec {
  margin: 20px 0 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--hairline-dim);
  border-radius: 12px;
  background: var(--hairline-dim);
  overflow: hidden;
}

.page-products .fn-spec > div {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 11px 14px;
  background: rgba(6, 18, 14, .66);
}

.page-products .fn-spec dt {
  flex: 0 0 88px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  padding-top: 3px;
}

.page-products .fn-spec dd {
  flex: 1 1 200px;
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cream);
}

/* ---------- 折叠步骤 ---------- */
.page-products .fn-details {
  margin-top: 20px;
  border: 1px dashed var(--hairline);
  border-radius: 12px;
  background: rgba(6, 18, 14, .5);
}

.page-products .fn-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--orange);
}

.page-products .fn-details summary::-webkit-details-marker {
  display: none;
}

.page-products .fn-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--orange);
}

.page-products .fn-details[open] summary::after {
  content: "−";
}

.page-products .fn-details summary:focus-visible {
  outline: 2px solid var(--edge);
  outline-offset: -2px;
  border-radius: 12px;
}

.page-products .fn-steps {
  margin: 0;
  padding: 0 16px 16px 16px;
  list-style: none;
  counter-reset: fnstep;
}

.page-products .fn-steps li {
  position: relative;
  counter-increment: fnstep;
  padding-left: 30px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .8);
}

.page-products .fn-steps li:last-child {
  margin-bottom: 0;
}

.page-products .fn-steps li::before {
  content: counter(fnstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  color: var(--orange);
  border: 1px solid var(--orange-deep);
  border-radius: 999px;
}

.page-products .fn-steps a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, .45);
}

/* ---------- 面板配图 ---------- */
.page-products .fn-panel-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-hard-sm);
}

.page-products .fn-panel-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

/* ---------- 战报字段顺序 ---------- */
.page-products .fn-field-order {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  counter-reset: fnfield;
}

.page-products .fn-field-order li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 10px 14px;
  border: 1px solid var(--hairline-dim);
  border-radius: 10px;
  background: rgba(6, 18, 14, .52);
}

.page-products .fn-field-key {
  flex: 0 0 84px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-products .fn-field-text {
  flex: 1 1 180px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(244, 241, 234, .82);
}

/* ---------- 时间轴 ---------- */
.page-products .fn-timeline {
  position: relative;
  margin: 22px 0 0;
  padding: 0 0 0 24px;
  list-style: none;
}

.page-products .fn-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange) 0%, var(--line) 40%, var(--hairline-dim) 100%);
}

.page-products .fn-timeline-item {
  position: relative;
  padding-bottom: 20px;
}

.page-products .fn-timeline-item:last-child {
  padding-bottom: 0;
}

.page-products .fn-timeline-dot {
  position: absolute;
  left: -24px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  background: var(--line);
}

.page-products .fn-timeline-item[data-state="done"] .fn-timeline-dot {
  background: var(--orange);
}

.page-products .fn-timeline-item[data-state="syncing"] .fn-timeline-dot {
  background: var(--yellow);
  animation: fn-pulse 1.8s ease-in-out infinite;
}

.page-products .fn-timeline-item[data-state="retry"] .fn-timeline-dot {
  background: var(--red);
}

@keyframes fn-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .42; transform: scale(.78); }
}

.page-products .fn-timeline-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 6px;
}

.page-products .fn-timeline-round {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cream);
}

.page-products .fn-timeline-body p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .78);
}

.page-products .fn-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .fn-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  border: 1px solid currentColor;
}

.page-products .fn-chip--yellow {
  color: var(--yellow);
  background: rgba(242, 194, 48, .12);
}

.page-products .fn-chip--red {
  color: var(--red);
  background: rgba(224, 56, 47, .12);
}

.page-products .fn-chip--muted {
  color: var(--muted);
  background: rgba(143, 167, 155, .1);
}

/* ---------- 版本通道 ---------- */
.page-products .fn-channels {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
}

.page-products .fn-channel {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: rgba(14, 42, 33, .6);
  box-shadow: var(--shadow-hard-sm);
}

.page-products .fn-channel--test {
  background: rgba(6, 18, 14, .68);
  border-color: rgba(242, 194, 48, .42);
}

.page-products .fn-channel-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-bottom: 12px;
}

.page-products .fn-channel-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-products .fn-channel-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
  border: 1px solid var(--hairline-dim);
  border-radius: var(--r-pill);
  padding: 3px 9px;
}

.page-products .fn-channel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .fn-channel-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.68;
  color: rgba(244, 241, 234, .8);
}

.page-products .fn-channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 反馈分类 ---------- */
.page-products .fn-issue-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .fn-issue-item {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px 12px;
  padding: 12px 14px;
  border-left: 3px solid var(--line);
  border-radius: 0 10px 10px 0;
  background: rgba(6, 18, 14, .55);
}

.page-products .fn-issue-item > p {
  flex: 1 1 200px;
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: rgba(244, 241, 234, .82);
}

.page-products .fn-issue-tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  border: 1px solid currentColor;
}

.page-products .fn-issue-tag[data-state="block"] {
  color: var(--red);
  background: rgba(224, 56, 47, .12);
}

.page-products .fn-issue-tag[data-state="warn"] {
  color: var(--yellow);
  background: rgba(242, 194, 48, .12);
}

.page-products .fn-issue-tag[data-state="muted"] {
  color: var(--muted);
  background: rgba(143, 167, 155, .1);
}

/* ---------- 反馈模板 ---------- */
.page-products .fn-template {
  margin-top: 20px;
  border: var(--bw) solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: rgba(6, 18, 14, .7);
  box-shadow: var(--shadow-hard-sm);
}

.page-products .fn-template .annotation {
  display: block;
  margin: 0 0 10px;
  color: var(--muted);
}

.page-products .fn-template-text {
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px dashed var(--hairline);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  color: rgba(244, 241, 234, .86);
  background: rgba(14, 42, 33, .5);
  word-break: break-word;
}

/* ---------- 联系卡片 ---------- */
.page-products .fn-contact-card {
  border: var(--bw) solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: linear-gradient(160deg, rgba(14, 42, 33, .9), rgba(6, 18, 14, .92));
  box-shadow: var(--shadow-hard-sm);
  align-self: start;
}

.page-products .fn-contact-card .annotation {
  display: block;
  margin: 0 0 12px;
  color: var(--orange);
}

.page-products .fn-contact-line {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

.page-products .fn-contact-key {
  display: inline-block;
  min-width: 68px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-products .fn-contact-note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--hairline-dim);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .fn-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* ---------- 页尾引导 ---------- */
.page-products .fn-tail {
  margin-top: 40px;
}

.page-products .fn-tail-card {
  border: var(--bw) solid var(--line);
  border-radius: var(--r-panel);
  padding: 22px 18px;
  background: linear-gradient(150deg, rgba(14, 42, 33, .92), rgba(6, 18, 14, .9));
  box-shadow: var(--shadow-hard);
}

.page-products .fn-tail-card .annotation {
  display: block;
  margin: 0 0 10px;
  color: var(--orange);
}

.page-products .fn-tail-text {
  margin: 0 0 18px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 234, .86);
}

.page-products .fn-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 20;
  padding: 10px 16px;
  border: var(--bw) solid var(--line);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  cursor: pointer;
  box-shadow: var(--shadow-hard-sm);
}
.page-products .to-top:focus-visible {
  outline: 2px solid var(--edge);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .fn-panel {
    padding: 26px 24px 28px;
  }
  .page-products .fn-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .fn-spec dt {
    flex: 0 0 108px;
  }
}

@media (min-width: 900px) {
  .page-products .fn-hero {
    padding: 36px 0 64px;
  }
  .page-products .fn-hero-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: end;
    gap: 48px;
  }
  .page-products .fn-hero-lead {
    font-size: 17px;
  }
  .page-products .fn-panel-title {
    flex: 1 1 auto;
  }
  .page-products .fn-panel-body {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
  .page-products .fn-panel--wide .fn-panel-body {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
  .page-products .fn-panel--flip .fn-panel-media {
    order: -1;
  }
  .page-products .fn-panel-media img {
    max-height: 460px;
  }
  .page-products .fn-tail-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 32px;
  }
  .page-products .fn-tail-text {
    margin-bottom: 0;
    flex: 1 1 420px;
  }
}

@media (min-width: 1200px) {
  .page-products .fn-hero-marker {
    display: block;
    position: absolute;
    right: 18px;
    top: 120px;
    writing-mode: vertical-rl;
    letter-spacing: .34em;
    font-size: 12px;
    color: var(--line);
    opacity: .8;
  }
  .page-products .to-top {
    right: 32px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fn-hero::before,
  .page-products .fn-timeline-item[data-state="syncing"] .fn-timeline-dot {
    animation: none;
  }
}