.page-products {
  --pf-line: rgba(185, 196, 194, 0.18);
  --pf-line-strong: rgba(255, 208, 138, 0.26);
  --pf-glass: rgba(247, 243, 234, 0.06);
  --pf-glass-deep: rgba(11, 31, 36, 0.55);
  background: var(--k-deep);
  color: var(--k-cream);
  font-family: var(--k-sans);
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--k-sans);
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(96px, 13vh, 152px) 0 clamp(56px, 8vw, 104px);
  background:
    radial-gradient(120% 92% at 82% 6%, rgba(245, 154, 35, 0.2), transparent 58%),
    radial-gradient(80% 70% at 4% 96%, rgba(210, 59, 46, 0.24), transparent 64%),
    var(--k-deep);
}

.page-products .pf-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  left: 50%;
  width: min(720px, 92vw);
  height: min(720px, 92vw);
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 208, 138, 0.16), transparent 66%);
  pointer-events: none;
}

.page-products .pf-crumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(24px, 4vw, 44px);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--k-mist);
}

.page-products .pf-crumb a {
  color: var(--k-mist);
  text-decoration: none;
}

.page-products .pf-crumb a:hover {
  color: var(--k-gold);
}

.page-products .pf-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

.page-products .pf-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--k-cream);
}

.page-products .pf-hero .k-lede {
  max-width: 34em;
  margin-top: 20px;
  color: var(--k-mist);
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* 技能树 */
.page-products .pf-tree {
  list-style: none;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 0 0 0 18px;
  border-left: 1px solid rgba(245, 154, 35, 0.34);
  display: grid;
  gap: 4px;
}

.page-products .pf-tree__node a {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 14px;
  padding: 12px 14px 12px 4px;
  border-radius: 0 14px 14px 0;
  color: var(--k-cream);
  text-decoration: none;
  transition: background 0.3s var(--k-ease), transform 0.3s var(--k-ease);
}

.page-products .pf-tree__node a::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--k-amber);
  box-shadow: 0 0 0 4px rgba(245, 154, 35, 0.16);
  transition: box-shadow 0.3s var(--k-ease), background 0.3s var(--k-ease);
}

.page-products .pf-tree__node a:hover,
.page-products .pf-tree__node a:focus-visible {
  background: rgba(247, 243, 234, 0.06);
  transform: translateX(4px);
}

.page-products .pf-tree__node a:hover::before,
.page-products .pf-tree__node a:focus-visible::before {
  background: var(--k-gold);
  box-shadow: 0 0 0 6px rgba(245, 154, 35, 0.22);
}

.page-products .pf-tree__num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--k-amber);
  line-height: 1.6;
}

.page-products .pf-tree__label {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.6;
}

.page-products .pf-tree__desc {
  grid-column: 2;
  font-size: 13px;
  font-weight: 300;
  color: var(--k-mist);
  line-height: 1.7;
}

/* 首屏玻璃面板 */
.page-products .pf-hero__panel {
  padding: 14px;
  border-radius: var(--k-radius);
  border: 1px solid var(--pf-line-strong);
  background: var(--pf-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-products .pf-hero__frame {
  overflow: hidden;
  border-radius: calc(var(--k-radius) - 6px);
  aspect-ratio: 14 / 9;
  background: linear-gradient(150deg, rgba(210, 59, 46, 0.5), rgba(30, 90, 85, 0.7) 60%, rgba(11, 31, 36, 0.95));
}

.page-products .pf-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pf-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.page-products .pf-hero__metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--pf-line);
  background: var(--pf-glass-deep);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--k-mist);
  line-height: 1.5;
}

.page-products .pf-hero__metric-num {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 900;
  color: var(--k-gold);
  line-height: 1.1;
}

/* ---------- 注册三步 ---------- */
.page-products .pf-register {
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--k-cream);
  color: var(--k-deep);
}

.page-products .pf-register__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-products .pf-register__media {
  margin: 0;
  border-radius: var(--k-radius);
  overflow: hidden;
  background: linear-gradient(160deg, #16303a, #0b1f24);
  box-shadow: 0 22px 50px -30px rgba(11, 31, 36, 0.65);
}

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

.page-products .pf-register__media figcaption {
  padding: 14px 18px 18px;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--k-mist);
}

.page-products .pf-register__body .k-eyebrow {
  color: var(--k-red);
}

.page-products .pf-register .k-section__title {
  margin: 12px 0 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--k-deep);
}

.page-products .pf-register .k-lede {
  margin-top: 16px;
  max-width: 38em;
  color: #3d4a4d;
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-steps {
  counter-reset: pf-step;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pf-steps li {
  counter-increment: pf-step;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(11, 31, 36, 0.08);
  transition: border-color 0.3s var(--k-ease), transform 0.3s var(--k-ease);
}

.page-products .pf-steps li:hover {
  border-color: rgba(210, 59, 46, 0.45);
  transform: translateY(-2px);
}

.page-products .pf-steps li::before {
  content: "0" counter(pf-step);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--k-red);
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

.page-products .pf-steps h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--k-deep);
  line-height: 1.5;
}

.page-products .pf-steps p {
  margin: 6px 0 0;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.8;
  color: #47545a;
}

.page-products .pf-register__note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--k-amber);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8;
  color: #3d4a4d;
}

/* ---------- 多端切换 ---------- */
.page-products .pf-switch {
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--k-teal);
  color: var(--k-cream);
}

.page-products .pf-switch__head {
  max-width: 46em;
}

.page-products .pf-switch .k-eyebrow {
  color: var(--k-gold);
}

.page-products .pf-switch .k-section__title {
  margin: 12px 0 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--k-cream);
}

.page-products .pf-switch .k-lede {
  margin-top: 16px;
  color: rgba(247, 243, 234, 0.78);
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-switch__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-products .pf-device {
  padding: 24px 22px;
  border-radius: var(--k-radius);
  background: rgba(7, 19, 22, 0.28);
  border: 1px solid rgba(255, 208, 138, 0.22);
  transition: background 0.3s var(--k-ease), transform 0.3s var(--k-ease);
}

.page-products .pf-device:hover {
  background: rgba(7, 19, 22, 0.44);
  transform: translateY(-4px);
}

.page-products .pf-device__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--k-amber);
  color: #14231f;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-products .pf-device h3 {
  margin: 14px 0 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--k-cream);
  line-height: 1.5;
}

.page-products .pf-device p {
  margin: 8px 0 0;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(247, 243, 234, 0.8);
}

.page-products .pf-device ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-products .pf-device li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(247, 243, 234, 0.72);
}

.page-products .pf-device li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--k-teal-light);
}

.page-products .pf-switch__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-radius: var(--k-radius);
  overflow: hidden;
  background: rgba(7, 19, 22, 0.35);
}

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

.page-products .pf-switch__figure figcaption {
  padding: 14px 20px 18px;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(247, 243, 234, 0.7);
}

/* ---------- 频道索引 ---------- */
.page-products .pf-channels {
  padding: clamp(56px, 8vw, 104px) 0;
  background:
    radial-gradient(90% 70% at 96% 0%, rgba(210, 59, 46, 0.22), transparent 60%),
    var(--k-black);
  color: var(--k-cream);
}

.page-products .pf-channels__head {
  max-width: 48em;
}

.page-products .pf-channels .k-eyebrow {
  color: var(--k-amber);
}

.page-products .pf-channels .k-section__title {
  margin: 12px 0 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--k-cream);
}

.page-products .pf-channels .k-lede {
  margin-top: 16px;
  color: var(--k-mist);
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-channels__figure {
  margin: clamp(24px, 3vw, 36px) 0 0;
  border-radius: var(--k-radius);
  overflow: hidden;
  max-height: 300px;
}

.page-products .pf-channels__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 300px;
  object-fit: cover;
}

.page-products .pf-channels__rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(210px, 76%);
  gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
  padding: 4px 4px 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--k-amber) transparent;
  outline-offset: 6px;
}

.page-products .pf-channels__rail::-webkit-scrollbar {
  height: 6px;
}

.page-products .pf-channels__rail::-webkit-scrollbar-thumb {
  background: var(--k-amber);
  border-radius: 999px;
}

.page-products .pf-ch {
  scroll-snap-align: start;
  padding: 20px 18px;
  border-radius: 18px;
  border: 1px solid var(--pf-line);
  background: var(--pf-glass);
  transition: background 0.3s var(--k-ease), border-color 0.3s var(--k-ease), transform 0.3s var(--k-ease);
}

.page-products .pf-ch:hover {
  background: rgba(247, 243, 234, 0.1);
  border-color: var(--pf-line-strong);
  transform: translateY(-4px);
}

.page-products .pf-ch__cat {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(245, 154, 35, 0.5);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--k-amber);
}

.page-products .pf-ch h3 {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--k-cream);
  line-height: 1.5;
}

.page-products .pf-ch p {
  margin: 6px 0 0;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--k-mist);
}

.page-products .pf-channels__hint {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(185, 196, 194, 0.7);
}

/* ---------- 设备适配 ---------- */
.page-products .pf-devices {
  padding: clamp(56px, 8vw, 104px) 0;
  background:
    linear-gradient(180deg, rgba(158, 36, 27, 0.22), transparent 40%),
    var(--k-deep);
  color: var(--k-cream);
}

.page-products .pf-devices__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-products .pf-devices .k-eyebrow {
  color: var(--k-amber);
}

.page-products .pf-devices .k-section__title {
  margin: 12px 0 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--k-cream);
}

.page-products .pf-devices .k-lede {
  margin-top: 16px;
  color: var(--k-mist);
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-devices__link {
  margin: 24px 0 0;
}

.page-products .pf-devices__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-products .pf-glass {
  padding: 22px 20px;
  border-radius: var(--k-radius);
  border: 1px solid var(--pf-line-strong);
  background: var(--pf-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s var(--k-ease), border-color 0.3s var(--k-ease);
}

.page-products .pf-glass:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 208, 138, 0.5);
}

.page-products .pf-glass__num {
  display: block;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--k-gold);
}

.page-products .pf-glass h3 {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--k-cream);
  line-height: 1.5;
}

.page-products .pf-glass p {
  margin: 8px 0 0;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--k-mist);
}

.page-products .pf-devices__figure {
  margin: clamp(32px, 4vw, 48px) 0 0;
  border-radius: var(--k-radius);
  overflow: hidden;
  border: 1px solid var(--pf-line);
}

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

/* ---------- 反馈支持 ---------- */
.page-products .pf-support {
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--k-cream);
  color: var(--k-deep);
}

.page-products .pf-support__head {
  max-width: 48em;
}

.page-products .pf-support .k-eyebrow {
  color: var(--k-red);
}

.page-products .pf-support .k-section__title {
  margin: 12px 0 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--k-deep);
}

.page-products .pf-support .k-lede {
  margin-top: 16px;
  color: #3d4a4d;
  font-weight: 300;
  line-height: 1.85;
}

.page-products .pf-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-products .pf-issue {
  display: block;
  padding: 22px 20px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(11, 31, 36, 0.1);
  text-decoration: none;
  color: var(--k-deep);
  transition: border-color 0.3s var(--k-ease), transform 0.3s var(--k-ease), box-shadow 0.3s var(--k-ease);
}

.page-products .pf-issue:hover,
.page-products .pf-issue:focus-visible {
  border-color: var(--k-red);
  transform: translateY(-4px);
  box-shadow: 0 18px 36px -28px rgba(210, 59, 46, 0.8);
}

.page-products .pf-issue__idx {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--k-red);
}

.page-products .pf-issue h3 {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--k-deep);
}

.page-products .pf-issue p {
  margin: 8px 0 0;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: #47545a;
}

.page-products .pf-issue__go {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--k-red-deep);
}

.page-products .pf-support__band {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--k-radius);
  background: linear-gradient(120deg, var(--k-red-deep), var(--k-red) 52%, var(--k-amber));
  color: var(--k-cream);
  display: grid;
  gap: 20px;
}

.page-products .pf-support__band-text {
  margin: 0;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.85;
  color: rgba(255, 250, 240, 0.94);
}

.page-products .pf-support__band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .pf-support__band .k-btn--ghost {
  border-color: rgba(255, 250, 240, 0.6);
  color: var(--k-cream);
}

.page-products .pf-support__band .k-btn--ghost:hover {
  background: rgba(255, 250, 240, 0.16);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pf-channels__rail {
    grid-auto-columns: minmax(230px, 44%);
  }

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

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

@media (min-width: 900px) {
  .page-products .pf-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .pf-register__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(36px, 4vw, 64px);
  }

  .page-products .pf-switch__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .pf-channels__rail {
    grid-auto-columns: minmax(250px, 27%);
  }

  .page-products .pf-devices__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .pf-support__band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-products .pf-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .pf-channels__rail {
    grid-auto-columns: minmax(240px, 22%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-tree__node a,
  .page-products .pf-steps li,
  .page-products .pf-device,
  .page-products .pf-ch,
  .page-products .pf-glass,
  .page-products .pf-issue {
    transition: none;
  }

  .page-products .pf-tree__node a:hover,
  .page-products .pf-steps li:hover,
  .page-products .pf-device:hover,
  .page-products .pf-ch:hover,
  .page-products .pf-glass:hover,
  .page-products .pf-issue:hover {
    transform: none;
  }
}