/* ===== 功能中心 / page-products ===== */

.page-products {
  --fn-accent: var(--red);
  position: relative;
  background-color: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(64px, 8vw, 112px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .fn-topline {
  padding-top: calc(var(--header-h) + 32px);
}

.page-products .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-products .breadcrumbs a:hover {
  color: var(--paper);
  border-bottom-color: var(--red);
}

.page-products .breadcrumbs__sep {
  color: rgba(143, 160, 176, 0.55);
}

.page-products .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 侧栏 + 正文布局 ---------- */
.page-products .layout-rail {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  margin-top: clamp(30px, 4vw, 54px);
}

@media (min-width: 1024px) {
  .page-products .layout-rail {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: clamp(40px, 4vw, 72px);
    align-items: start;
  }
}

/* ---------- 品牌轨道索引 ---------- */
.page-products .rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .rail-index {
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .rail-index::-webkit-scrollbar {
  display: none;
}

.page-products .rail-index a {
  flex: 0 0 auto;
  display: block;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.2;
  color: rgba(245, 241, 232, 0.75);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.page-products .rail-index a:hover,
.page-products .rail-index a.is-active {
  border-color: var(--jade);
  color: var(--paper);
  background-color: rgba(47, 169, 140, 0.12);
}

.page-products .rail-foot {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(143, 160, 176, 0.72);
}

@media (min-width: 1024px) {
  .page-products .rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding-left: 16px;
    border-left: 1px solid var(--line);
  }

  .page-products .rail-index {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .rail-index a {
    position: relative;
    border: 0;
    border-radius: 0;
    padding: 8px 0 8px 16px;
    white-space: normal;
    font-size: 14px;
    background-color: transparent;
  }

  .page-products .rail-index a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 1px;
    background: var(--mist);
    transform: translateY(-50%);
    transition: width 0.3s var(--ease), background-color 0.3s var(--ease);
  }

  .page-products .rail-index a:hover,
  .page-products .rail-index a.is-active {
    background-color: transparent;
  }

  .page-products .rail-index a:hover::before,
  .page-products .rail-index a.is-active::before {
    width: 15px;
    background: var(--red);
  }
}

/* ---------- 首屏导语 ---------- */
.page-products .fn-intro {
  padding-bottom: clamp(34px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-products .fn-intro .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .fn-intro h1 {
  margin: 0;
  max-width: 20em;
  font-size: clamp(28px, 5.2vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.022em;
  font-weight: 900;
  font-stretch: 88%;
}

.page-products .fn-intro .lead {
  margin: 22px 0 0;
  max-width: 46em;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.78);
}

.page-products .fn-intro__facts {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 22px 44px;
}

.page-products .fn-intro__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-products .fn-intro__facts .mono {
  font-family: var(--font-mono);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--jade);
}

.page-products .fn-intro__facts em {
  font-style: normal;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 功能分段 ---------- */
.page-products .fn-block {
  position: relative;
  padding: clamp(48px, 6vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.page-products .fn-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 84px;
  height: 2px;
  background: var(--fn-accent);
}

.page-products .fn-block--account {
  --fn-accent: var(--jade);
}

.page-products .fn-block--cards {
  --fn-accent: var(--yellow);
}

.page-products .fn-block--desktop {
  --fn-accent: var(--clay);
}

.page-products .fn-block--scenarios {
  --fn-accent: var(--moss);
}

.page-products .fn-block--roadmap {
  --fn-accent: var(--mist);
  border-bottom: 0;
}

.page-products .fn-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .fn-kicker::before {
  content: "";
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--fn-accent);
}

.page-products .section-title {
  margin: 0 0 18px;
  max-width: 24em;
  font-size: clamp(23px, 3.3vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.018em;
  font-weight: 800;
}

.page-products .fn-block p {
  margin: 0 0 16px;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.76);
}

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

.page-products .fn-block a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 169, 140, 0.45);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-products .fn-block a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 主客场筛选模块 ---------- */
.page-products .fn-split__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  margin-top: 10px;
  align-items: start;
}

@media (min-width: 880px) {
  .page-products .fn-split__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 64px);
  }
}

.page-products .fn-steps {
  list-style: none;
  counter-reset: fnstep;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .fn-steps li {
  counter-increment: fnstep;
  position: relative;
  padding-left: 42px;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(245, 241, 232, 0.8);
}

.page-products .fn-steps li::before {
  content: counter(fnstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  width: 28px;
  height: 22px;
  line-height: 21px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-style: italic;
  color: var(--jade);
  border: 1px solid rgba(47, 169, 140, 0.42);
  border-radius: 7px;
}

/* ---------- 图 ---------- */
.page-products .fn-shot {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background-color: var(--ink-2);
}

.page-products .fn-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  transition: transform 0.7s var(--ease);
}

.page-products .fn-shot:hover img {
  transform: scale(1.03);
}

.page-products .fn-shot__cap {
  margin: 0;
  padding: 12px 16px;
  max-width: none;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-products .fn-shot--tilt {
  transform: rotate(-1.2deg);
}

.page-products .fn-shot--tilt:hover {
  transform: rotate(0deg);
}

/* ---------- 数据条 ---------- */
.page-products .fn-statbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  margin-top: 34px;
  background-color: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-products .fn-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px 20px;
  background-color: var(--ink-2);
}

.page-products .fn-stat__num {
  font-family: var(--font-mono);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 25px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .fn-stat:nth-child(2) .fn-stat__num {
  color: var(--jade);
}

.page-products .fn-stat:nth-child(3) .fn-stat__num {
  color: var(--yellow);
}

.page-products .fn-stat__label {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 老用户中心 ---------- */
.page-products .fn-account {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  margin-top: 10px;
  align-items: center;
}

@media (min-width: 880px) {
  .page-products .fn-account {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(36px, 4vw, 64px);
  }
}

.page-products .fn-account .fn-statbar {
  margin-top: 26px;
}

/* ---------- 红黄牌 ---------- */
.page-products .fn-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  margin-top: 10px;
  align-items: center;
}

@media (min-width: 880px) {
  .page-products .fn-cards {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.1fr);
    gap: clamp(36px, 4vw, 64px);
  }
}

.page-products .fn-chips {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
}

.page-products .fn-chip {
  width: 34px;
  height: 46px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-products .fn-chip--red {
  background: var(--red);
  color: #FFFFFF;
  transform: rotate(-3deg);
}

.page-products .fn-chip--yellow {
  background: var(--yellow);
  color: var(--ink);
  transform: rotate(2.5deg);
}

/* ---------- 电脑端对照视图 ---------- */
.page-products .fn-desktop {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 320px;
  margin-top: 12px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--ink-2);
}

.page-products .fn-desktop__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}

.page-products .fn-desktop__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(24px, 4vw, 54px);
  background: linear-gradient(
    180deg,
    rgba(11, 23, 38, 0.06) 0%,
    rgba(11, 23, 38, 0.94) 76%
  );
}

.page-products .fn-desktop__panel .fn-statbar {
  margin-top: 26px;
}

/* ---------- 组合场景 ---------- */
.page-products .fn-scenarios {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  background-color: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-products .fn-scenario {
  position: relative;
  padding: clamp(22px, 2.6vw, 30px);
  background-color: var(--ink-2);
  overflow: hidden;
}

.page-products .fn-scenario::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(47, 169, 140, 0.09);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}

.page-products .fn-scenario:hover::before {
  opacity: 1;
}

.page-products .fn-scenario__tag {
  position: relative;
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(47, 169, 140, 0.42);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--jade);
}

.page-products .fn-scenario h3 {
  position: relative;
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.45;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fn-scenario p {
  position: relative;
  margin: 0;
  max-width: none;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.7);
}

/* ---------- 版本节奏 ---------- */
.page-products .fn-roadmap {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .fn-roadmap li {
  position: relative;
  padding: 20px 0 20px 34px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.78);
}

.page-products .fn-roadmap li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 29px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--jade);
}

.page-products .fn-roadmap li:nth-child(2)::before {
  background: var(--yellow);
}

.page-products .fn-roadmap li:nth-child(3)::before {
  background: var(--red);
}

.page-products .fn-roadmap li:nth-child(4)::before {
  background: var(--clay);
}

/* ---------- 收尾 ---------- */
.page-products .fn-close {
  margin-top: clamp(48px, 6vw, 80px);
  padding: clamp(30px, 4vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(
    135deg,
    rgba(226, 59, 46, 0.16) 0%,
    rgba(20, 38, 59, 0.92) 52%,
    rgba(47, 169, 140, 0.15) 100%
  );
}

.page-products .fn-close .section-title {
  margin-bottom: 14px;
}

.page-products .fn-close p {
  margin: 0 0 16px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.78);
}

.page-products .fn-close a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 169, 140, 0.45);
}

.page-products .fn-close a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-products .fn-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.page-products .fn-close__actions .btn {
  border-bottom: 0;
  color: inherit;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 560px) {
  .page-products .fn-shot--tilt {
    transform: none;
  }

  .page-products .fn-statbar {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }

  .page-products .fn-intro__facts {
    gap: 18px 30px;
  }

  .page-products .fn-desktop {
    min-height: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fn-shot--tilt,
  .page-products .fn-shot:hover img,
  .page-products .fn-scenario::before {
    transition: none;
    transform: none;
    opacity: 0;
  }

  .page-products .fn-shot:hover img {
    opacity: 1;
  }
}