/* =========================================================
   功能中心 /features/
   作用域：.page-products
   ========================================================= */

.page-products {
  --fp-gap: clamp(18px, 2.4vw, 34px);
  --fp-sec-pad: clamp(56px, 8vw, 108px);
  color: var(--paper);
}

/* ---------- 通用块 ---------- */

.page-products .section {
  padding-block: var(--fp-sec-pad);
}

.page-products .fp-sec-band {
  background:
    linear-gradient(180deg, rgba(18, 21, 26, .82) 0%, rgba(8, 9, 12, .34) 100%);
  border-block: 1px solid var(--line);
}

.page-products .fp-p {
  margin: 0 0 1.15em;
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--gray);
}

.page-products .fp-p-note {
  margin-top: 1.4em;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 15px;
  color: var(--gray);
}

.page-products .fp-p-after {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-products .fp-h3 {
  margin: clamp(26px, 3vw, 38px) 0 14px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--gold-lt);
};

/* ---------- 章节标题组 ---------- */

.page-products .fp-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 10px;
  align-items: start;
  margin-bottom: clamp(26px, 3.6vw, 46px);
}

.page-products .fp-num {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  padding-top: 12px;
  border-top: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-products .fp-title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: clamp(24px, 3.4vw, 44px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-products .fp-sub {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 首屏 ---------- */

.page-products .fp-hero {
  padding-top: clamp(22px, 3.4vw, 44px);
}

.page-products .fp-hero-frame {
  position: relative;
  padding: clamp(34px, 5.4vw, 76px) clamp(20px, 4vw, 60px);
  overflow: hidden;
  background:
    radial-gradient(115% 88% at 80% 8%, rgba(212, 167, 44, .18), transparent 60%),
    radial-gradient(80% 70% at 6% 96%, rgba(53, 200, 255, .09), transparent 66%),
    linear-gradient(170deg, var(--ink-2) 0%, var(--ink) 100%);
}

.page-products .fp-hero-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    116deg,
    transparent 0 28px,
    rgba(53, 200, 255, .05) 28px 29px
  );
}

.page-products .fp-kicker {
  position: relative;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--moss);
}

.page-products .fp-hero-title {
  position: relative;
  margin: 0;
  max-width: 17ch;
  font-size: clamp(32px, 6.4vw, 76px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
  text-shadow: 0 0 44px rgba(212, 167, 44, .18);
}

.page-products .fp-hero-title::after {
  content: "";
  display: block;
  width: 74px;
  height: 4px;
  margin-top: 22px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--neon) 100%);
}

.page-products .fp-hero-lead {
  position: relative;
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.35vw, 17.5px);
  line-height: 1.92;
  color: var(--gray);
}

.page-products .fp-quick {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 9px 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .fp-quick a {
  display: inline-block;
  padding: 8px 15px;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--paper);
  text-decoration: none;
  background: rgba(242, 237, 228, .04);
  border: 1px solid var(--line);
  clip-path: var(--clip-xs);
  transition: color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-products .fp-quick a:hover,
.page-products .fp-quick a:focus-visible {
  color: var(--gold-lt);
  border-color: var(--gold);
  background: rgba(212, 167, 44, .1);
}

/* ---------- 非对称栅格 ---------- */

.page-products .fp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--fp-gap);
}

.page-products .fp-col-main,
.page-products .fp-col-side {
  min-width: 0;
}

@media (min-width: 900px) {
  .page-products .fp-split-75 {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-products .fp-split-57 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-products .fp-offset .fp-col-side {
    margin-top: clamp(20px, 4.5vw, 64px);
  }
  .page-products .fp-split-57.fp-offset .fp-col-side {
    margin-top: clamp(20px, 4.5vw, 64px);
  }
}

/* ---------- 图片 ---------- */

.page-products .fp-fig {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

.page-products .figure-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: var(--clip-md);
  background: var(--ink-2);
}

.page-products .figure-tall .figure-img {
  aspect-ratio: 5 / 6;
}

.page-products .figure-cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--gray);
  border-left: 2px solid var(--line);
  padding-left: 10px;
}

/* ---------- 通道拓扑 ---------- */

.page-products .fp-list {
  margin: 0 0 1.4em;
  padding: 0;
  list-style: none;
}

.page-products .fp-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--gray);
}

.page-products .fp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 1.5px;
  background: var(--gold);
}

.page-products .fp-list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .fp-topo {
  padding: 20px;
  background: linear-gradient(158deg, var(--ink-2) 0%, var(--ink) 100%);
  border: 1px solid var(--line);
  clip-path: var(--clip-md);
}

.page-products .fp-topo-t {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .fp-topo-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .fp-topo-lines line {
  stroke-dasharray: 4 6;
  animation: fp-dash 14s linear infinite;
}

@keyframes fp-dash {
  to { stroke-dashoffset: -200; }
}

.page-products .fp-topo-d {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 平台标签页 ---------- */

.page-products .fp-tabs {
  border: 1px solid var(--line);
  clip-path: var(--clip-md);
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  overflow: hidden;
}

.page-products .fp-tabbar {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 9, 12, .6);
}

.page-products .fp-tab {
  flex: 1 1 auto;
  min-width: 96px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--gray);
  background: transparent;
  border: 0;
  border-right: 1px solid var(--line);
  cursor: pointer;
  transition: color .3s var(--ease), background-color .3s var(--ease);
}

.page-products .fp-tab:last-child {
  border-right: 0;
}

.page-products .fp-tab:hover {
  color: var(--gold-lt);
}

.page-products .fp-tab:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -4px;
}

.page-products .fp-tab.is-on {
  color: var(--ink);
  background: linear-gradient(180deg, var(--gold-lt) 0%, var(--gold) 100%);
  font-weight: 700;
}

.page-products .fp-panel {
  display: none;
  padding: clamp(18px, 2.6vw, 30px);
}

.page-products .fp-panel.is-on {
  display: block;
}

.page-products .fp-spec {
  margin: 0;
}

.page-products .fp-spec-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 14px;
  border-bottom: 1px solid rgba(44, 49, 58, .7);
}

.page-products .fp-spec-row:nth-child(even) {
  background: rgba(242, 237, 228, .025);
}

.page-products .fp-spec-row:last-child {
  border-bottom: 0;
}

.page-products .fp-spec-row dt {
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--moss);
}

.page-products .fp-spec-row dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--paper);
}

@media (min-width: 720px) {
  .page-products .fp-spec-row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

/* ---------- 步骤（技能树式） ---------- */

.page-products .steps {
  margin: 0;
  padding: 0;
}

.page-products .steps .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 16px;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  clip-path: var(--clip-sm);
  background: rgba(18, 21, 26, .72);
  cursor: pointer;
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-products .steps .step:hover {
  border-color: var(--gold);
}

.page-products .steps .step.is-lit {
  border-left-color: var(--gold);
  background: rgba(212, 167, 44, .06);
}

.page-products .steps .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold);
  border: 1.5px solid var(--gold);
  border-radius: 50%;
}

.page-products .steps .step.is-lit .step-num {
  color: var(--ink);
  background: var(--gold);
}

.page-products .step-body p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray);
}

.page-products .card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.5;
  color: var(--gold-lt);
}

/* ---------- 电脑端安装 ---------- */

.page-products .fp-flow {
  margin: 0 0 6px;
  padding: 0;
  list-style: none;
  counter-reset: fpflow;
}

.page-products .fp-flow li {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--gray);
}

.page-products .fp-flow li::after {
  content: "";
  position: absolute;
  left: 22px;
  top: 26px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(53, 200, 255, .35) 100%);
}

.page-products .fp-flow li:last-child {
  padding-bottom: 0;
}

.page-products .fp-flow li:last-child::after {
  display: none;
}

.page-products .fp-flow-n {
  position: relative;
  z-index: 1;
  display: inline-block;
  width: 46px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold);
  background: var(--ink);
}

.page-products .fp-flow strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .fp-gpu-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 4px;
}

@media (min-width: 620px) {
  .page-products .fp-gpu-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .fp-gpu {
  border: 1px solid var(--line);
  clip-path: var(--clip-md);
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--ink) 100%);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-products .fp-gpu:hover,
.page-products .fp-gpu[open] {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px rgba(212, 167, 44, .22), 0 14px 34px rgba(0, 0, 0, .5);
}

.page-products .fp-gpu-sum {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .fp-gpu-sum::-webkit-details-marker {
  display: none;
}

.page-products .fp-gpu-name {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .12em;
  color: var(--gold-lt);
}

.page-products .fp-gpu-plus {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.page-products .fp-gpu-plus::before,
.page-products .fp-gpu-plus::after {
  content: "";
  position: absolute;
  background: var(--gold);
}

.page-products .fp-gpu-plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-products .fp-gpu-plus::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
  transition: transform .3s var(--ease);
}

.page-products .fp-gpu[open] .fp-gpu-plus::after {
  transform: scaleY(0);
}

.page-products .fp-gpu-body {
  padding: 0 16px 18px;
  border-top: 1px solid rgba(44, 49, 58, .8);
}

.page-products .fp-gpu-body p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 账号与设备 ---------- */

.page-products .fp-path {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .fp-path li {
  position: relative;
  padding: 16px 18px 16px 22px;
  margin-bottom: 10px;
  background: rgba(18, 21, 26, .7);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  clip-path: var(--clip-sm);
}

.page-products .fp-path-n {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--moss);
}

.page-products .fp-path p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.86;
  color: var(--gray);
}

/* ---------- 礼包 ---------- */

.page-products .fp-gift-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 4px 0 0;
}

@media (min-width: 640px) {
  .page-products .fp-gift-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .fp-gift {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  clip-path: var(--clip-sm);
  background: linear-gradient(170deg, rgba(18, 21, 26, .95) 0%, rgba(8, 9, 12, .9) 100%);
}

.page-products .fp-gift-k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--clay);
}

.page-products .fp-gift-v {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--gold-lt);
}

.page-products .fp-gift-d {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 版本节奏窄带 ---------- */

.page-products .fp-release-sec {
  padding-block: clamp(48px, 6.6vw, 88px);
}

.page-products .fp-release {
  position: relative;
  padding: clamp(26px, 4vw, 48px) clamp(20px, 4vw, 56px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  clip-path: var(--clip-md);
  background:
    linear-gradient(100deg, rgba(212, 167, 44, .09) 0%, rgba(8, 9, 12, .96) 46%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  overflow: hidden;
}

.page-products .fp-release::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(53, 200, 255, .18);
  pointer-events: none;
}

.page-products .fp-release-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  align-items: start;
  margin-bottom: 20px;
}

.page-products .fp-release-head .fp-title {
  grid-column: 2;
}

.page-products .fp-release-head .fp-num {
  grid-column: 1;
}

.page-products .fp-release-v {
  margin: 0 0 16px;
  font-size: clamp(22px, 3.6vw, 40px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .fp-release-n {
  color: var(--gold);
  font-family: var(--font-mono);
}

.page-products .fp-release-v em {
  font-style: normal;
  color: var(--neon);
}

.page-products .fp-release-u {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--gray);
}

.page-products .fp-release-d {
  margin: 0 0 20px;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--gray);
}

.page-products .fp-release-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 760px) {
  .page-products .fp-release-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-products .fp-release-list li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--gray);
}

.page-products .fp-release-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--gold-lt);
  font-weight: 700;
}

/* ---------- 结尾跳转 ---------- */

.page-products .fp-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 700px) {
  .page-products .fp-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-products .fp-next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .fp-next-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 22px;
  text-decoration: none;
  border: 1px solid var(--line);
  clip-path: var(--clip-md);
  background: linear-gradient(168deg, var(--ink-2) 0%, var(--ink) 100%);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.page-products .fp-next-card:hover,
.page-products .fp-next-card:focus-visible {
  border-color: var(--gold);
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .55);
}

.page-products .fp-next-k {
  margin: 0;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .fp-next-d {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

.page-products .fp-next-go {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--neon);
}

.page-products .fp-contact-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  clip-path: var(--clip-sm);
  background: rgba(18, 21, 26, .8);
}

.page-products .fp-contact-t {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}

.page-products .fp-contact-t strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .fp-mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-products .fp-copy {
  flex: 0 0 auto;
}

/* ---------- 小屏保护 ---------- */

@media (max-width: 520px) {
  .page-products .fp-head {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-products .fp-num {
    grid-column: 1;
    padding-top: 8px;
  }
  .page-products .fp-title,
  .page-products .fp-sub {
    grid-column: 1;
  }
  .page-products .fp-release-head {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-products .fp-release-head .fp-title,
  .page-products .fp-release-head .fp-num {
    grid-column: 1;
  }
  .page-products .fp-tab {
    min-width: 72px;
    padding: 12px 10px;
    font-size: 12px;
  }
  .page-products .fp-quick a {
    padding: 7px 12px;
    font-size: 12.5px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-products .fp-topo-lines line {
    animation: none;
  }
  .page-products .fp-next-card,
  .page-products .fp-quick a,
  .page-products .fp-gpu {
    transition: none;
  }
  .page-products .fp-next-card:hover {
    transform: none;
  }
}
<<<END>>>