.page-products {
  --t-gap: clamp(16px, 2.6vw, 28px);
  --t-pad: clamp(18px, 3.4vw, 32px);
  --t-sec-pad: clamp(44px, 7vw, 96px);
  --t-inset: clamp(16px, 4vw, 40px);
}

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

.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-products .t-crumb {
  padding-top: clamp(14px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-products .t-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3.4vw, 40px) clamp(26px, 4.6vw, 56px);
}

.page-products .t-hero::before {
  content: "";
  position: absolute;
  inset: -30% -8% auto -8%;
  height: 78%;
  pointer-events: none;
  background:
    radial-gradient(58% 70% at 80% 22%, rgba(56, 242, 224, 0.16), transparent 70%),
    radial-gradient(48% 62% at 10% 0%, rgba(255, 90, 42, 0.13), transparent 72%);
}

.page-products .t-hero__grid {
  position: relative;
  display: grid;
  gap: var(--t-gap);
}

.page-products .t-hero__title {
  margin: 10px 0 0;
  font-weight: 200;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-products .t-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
}

/* ---------- 仪表板 ---------- */
.page-products .t-board {
  padding-block: clamp(22px, 3.6vw, 46px);
}

.page-products .t-board__head {
  max-width: 720px;
}

.page-products .t-h2 {
  margin: 10px 0 12px;
  font-size: clamp(1.55rem, 3.6vw, 2.9rem);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-products .t-note {
  margin: 0;
  max-width: 62ch;
  color: var(--c-steel);
  font-size: 15px;
  line-height: 1.78;
}

.page-products .t-board__grid {
  margin-top: clamp(20px, 3vw, 36px);
  display: grid;
  gap: var(--t-gap);
}

.page-products .t-rail {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px;
}

.page-products .t-rail__label {
  margin: 0;
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.page-products .t-rail__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .tag--on {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-void);
}

.page-products .t-rail__foot {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--c-line-soft);
}

.page-products .t-rail__foot .u-mono {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ember);
}

.page-products .t-rail__foot-note {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-steel);
}

.page-products .t-cards {
  display: grid;
  gap: var(--t-gap);
  min-width: 0;
}

.page-products .t-card {
  position: relative;
  padding: var(--t-pad);
  background: var(--c-midnight);
  border: 1px solid var(--c-line-soft);
  overflow: hidden;
}

.page-products .t-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 52px;
  height: 2px;
  background: var(--c-cyan);
}

.page-products .t-card__title {
  margin: 8px 0 8px;
  font-size: clamp(1.02rem, 2.1vw, 1.32rem);
  font-weight: 600;
  line-height: 1.38;
}

.page-products .t-card p {
  margin: 0;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.74;
}

.page-products .t-card .u-eyebrow {
  color: var(--c-cyan);
}

.page-products .t-card__heat {
  margin-top: 14px;
  border: 1px solid var(--c-line-soft);
  background: linear-gradient(160deg, rgba(56, 242, 224, 0.07), rgba(6, 17, 31, 0.9));
  padding: 8px;
}

.page-products .t-heat {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .t-card__meta {
  margin-top: 12px !important;
  font-size: 12px !important;
  letter-spacing: 0.04em;
  color: var(--c-steel);
}

.page-products .t-card__meta .u-mono {
  color: var(--c-cyan);
  font-weight: 700;
}

.page-products .t-card--accent {
  border-color: rgba(255, 90, 42, 0.45);
  background: linear-gradient(158deg, rgba(255, 90, 42, 0.16), rgba(11, 32, 56, 0.94) 62%);
}

.page-products .t-card--accent::before {
  background: var(--c-signal);
}

.page-products .t-card__version {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 16px !important;
  font-size: 12px !important;
  color: var(--c-steel);
}

.page-products .t-card__version .u-mono {
  font-size: 26px;
  font-weight: 800;
  color: var(--c-signal);
  letter-spacing: 0.02em;
}

.page-products .t-card--device {
  display: grid;
  gap: 14px;
}

/* 条形对比图 */
.page-products .t-bars {
  margin-top: 16px;
  display: grid;
  gap: 9px;
}

.page-products .t-bars__row {
  display: grid;
  grid-template-columns: 5.4em minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.page-products .t-bars__label {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

.page-products .t-bars__track {
  position: relative;
  display: block;
  height: 7px;
  background: rgba(143, 166, 184, 0.16);
}

.page-products .t-bars__fill {
  position: absolute;
  inset: 0 auto 0 0;
  display: block;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-cyan-soft));
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-products .t-bars__row:nth-child(1) .t-bars__fill { width: 88%; }
.page-products .t-bars__row:nth-child(2) .t-bars__fill { width: 71%; background: linear-gradient(90deg, var(--c-ember), var(--c-signal)); }
.page-products .t-bars__row:nth-child(3) .t-bars__fill { width: 63%; }
.page-products .t-bars__row:nth-child(4) .t-bars__fill { width: 54%; background: linear-gradient(90deg, var(--c-ember), var(--c-signal)); }

/* ---------- 通用章节 ---------- */
.page-products .t-sec {
  padding-block: var(--t-sec-pad);
}

.page-products .t-sec--alt {
  background: linear-gradient(180deg, rgba(11, 32, 56, 0.88), rgba(11, 32, 56, 0.5));
  border-block: 1px solid var(--c-line-soft);
}

.page-products .t-sec__head {
  max-width: 68ch;
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-products .t-split {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}

.page-products .t-side {
  min-width: 0;
}

/* 图框 */
.page-products .t-figure {
  margin: 0;
}

.page-products .t-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-midnight);
}

.page-products .t-frame::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 64px;
  height: 2px;
  background: var(--c-signal);
}

.page-products .t-figure .media__caption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-steel);
  line-height: 1.6;
}

.page-products .t-figure--tight {
  margin-top: 20px;
}

/* 四维度列表 */
.page-products .t-dims {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-products .t-dims li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .t-dims__num {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-products .t-dims h3,
.page-products .t-layers h3,
.page-products .t-steps h3,
.page-products .t-format h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-products .t-dims p,
.page-products .t-layers p,
.page-products .t-steps p,
.page-products .t-format p {
  margin: 0;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.72;
}

/* 更新节奏 */
.page-products .t-timing {
  margin-top: 18px;
  padding: 18px;
  display: grid;
  gap: 16px;
}

.page-products .t-timing > div {
  border-left: 2px solid var(--c-cyan);
  padding-left: 14px;
}

.page-products .t-timing__num {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 800;
  color: var(--c-cyan-soft);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-products .t-timing__num span {
  margin-left: 6px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-steel);
}

.page-products .t-timing__txt {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-steel);
}

/* 三层筛选 */
.page-products .t-layers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .t-layers li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 16px 14px;
  background: rgba(6, 17, 31, 0.55);
  border: 1px solid var(--c-line-soft);
  border-left: 2px solid var(--c-cyan);
}

.page-products .t-layers__badge {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  padding-top: 4px;
}

/* ---------- 资料格式 ---------- */
.page-products .t-formats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--t-gap);
}

.page-products .t-format {
  position: relative;
  padding: var(--t-pad) var(--t-pad) calc(var(--t-pad) + 6px);
  background: var(--c-midnight);
  border: 1px solid var(--c-line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-products .t-format::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--c-cyan);
}

.page-products .t-format--csv::after { background: var(--c-ember); }
.page-products .t-format--img::after { background: var(--c-signal); }

.page-products .t-format__ext {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
}

.page-products .t-format--csv .t-format__ext { color: var(--c-ember); }
.page-products .t-format--img .t-format__ext { color: var(--c-signal); }

.page-products .t-naming {
  margin-top: clamp(20px, 3vw, 34px);
  padding: var(--t-pad);
}

.page-products .t-naming__example {
  margin: 10px 0 10px;
  font-size: clamp(0.95rem, 2.4vw, 1.35rem);
  font-weight: 700;
  color: var(--c-cyan-soft);
  letter-spacing: 0.02em;
  word-break: break-all;
}

.page-products .t-naming__txt {
  margin: 0;
  max-width: 66ch;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 流程 ---------- */
.page-products .t-flow {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}

.page-products .t-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--t-gap);
}

.page-products .t-steps li {
  position: relative;
  padding: 20px 18px 18px;
  background: rgba(10, 32, 56, 0.62);
  border: 1px solid var(--c-line-soft);
}

.page-products .t-steps li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(56, 242, 224, 0));
}

.page-products .t-steps li:nth-child(1)::before { width: 42%; }
.page-products .t-steps li:nth-child(2)::before { width: 68%; }
.page-products .t-steps li:nth-child(3)::before { width: 100%; }

.page-products .t-steps__num {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--c-ember);
  letter-spacing: -0.02em;
}

.page-products .t-flow__note {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 68ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-steel);
  padding-left: 14px;
  border-left: 2px solid var(--c-signal);
}

.page-products .t-flow__note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
}

/* ---------- 设备 ---------- */
.page-products .t-device {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
}

.page-products .t-figure--phone {
  max-width: 380px;
  margin-inline: auto;
}

.page-products .t-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .t-specs li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-products .t-specs li:last-child {
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .t-specs b {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
  color: var(--c-cyan);
  transform: skewX(-6deg);
}

.page-products .t-specs span {
  color: var(--c-steel);
  font-size: 14px;
  line-height: 1.6;
}

.page-products .t-specs--compact {
  margin-top: 4px;
}

.page-products .t-specs--compact b {
  font-size: 1.35rem;
  color: var(--c-ember);
}

.page-products .t-specs--compact span {
  font-size: 13px;
}

.page-products .t-device__note {
  margin: 20px 0;
  max-width: 60ch;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-products .t-device__text .btn {
  display: inline-block;
}

/* ---------- 问答 ---------- */
.page-products .t-faq {
  max-width: 880px;
  border-top: 1px solid var(--c-line-soft);
}

.page-products .t-faq details {
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .t-faq summary {
  position: relative;
  padding: 16px 36px 16px 0;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.page-products .t-faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-cyan);
}

.page-products .t-faq details[open] summary {
  color: var(--c-cyan-soft);
}

.page-products .t-faq details[open] summary::after {
  content: "–";
}

.page-products .t-faq p {
  margin: 0 0 18px;
  max-width: 62ch;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.82;
}

.page-products .t-faq__more {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-steel);
}

.page-products .t-faq__more a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
}

/* ---------- 收尾 ---------- */
.page-products .t-cta {
  margin-top: clamp(28px, 5vw, 60px);
  padding-block: clamp(36px, 6vw, 74px);
  border-top: 1px solid var(--c-line);
  background:
    radial-gradient(70% 120% at 12% 0%, rgba(56, 242, 224, 0.16), transparent 68%),
    radial-gradient(60% 110% at 92% 100%, rgba(255, 90, 42, 0.16), transparent 70%),
    var(--c-void);
}

.page-products .t-cta__inner {
  display: grid;
  gap: 20px;
}

.page-products .t-cta__title {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-products .t-cta__txt {
  margin: 0;
  max-width: 56ch;
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-products .t-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .t-cta__actions .btn {
  display: inline-block;
}

.page-products .t-cta__fine {
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--c-line-soft);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--c-steel);
}

.page-products .t-cta__fine a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .t-card--device {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 20px;
  }

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

@media (min-width: 720px) {
  .page-products .t-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .t-card--wide {
    grid-column: 1 / -1;
  }

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

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

  .page-products .t-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-products .t-hero__grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    align-items: end;
  }

  .page-products .t-hero__aside {
    padding-left: clamp(18px, 2.4vw, 34px);
    padding-bottom: 8px;
    border-left: 1px solid var(--c-line);
  }

  .page-products .t-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }

  .page-products .t-split--rev {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .page-products .t-flow {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
  }

  .page-products .t-device {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .t-figure--phone {
    margin-inline: 0;
  }
}

@media (min-width: 980px) {
  .page-products .t-board__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .t-rail {
    position: sticky;
    top: clamp(16px, 3vw, 34px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .t-card,
  .page-products .t-format,
  .page-products .t-steps li {
    transition: none;
  }
}
</main>